KumiSystems/openwrtv4
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

apm821xx: remove 4.4 kernel support

Browse source 
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
This commit is contained in:
Christian Lamparter 2017-02-10 17:44:44 +01:00 committed by Felix Fietkau
parent 51397d7d95
commit cead8f9dfd
23 changed files with 0 additions and 7119 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

331
target/linux/apm821xx/config-4.4
View file

@ -1,331 +0,0 @@
# CONFIG_40x is not set
CONFIG_44x=y
CONFIG_4xx=y
CONFIG_4xx_SOC=y
# CONFIG_ADVANCED_OPTIONS is not set
CONFIG_APM821xx=y
# CONFIG_APOLLO3G is not set
# CONFIG_ARCHES is not set
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
CONFIG_ARCH_HAS_DMA_SET_COHERENT_MASK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
CONFIG_ARCH_HAS_ILOG2_U32=y
CONFIG_ARCH_HAS_SG_CHAIN=y
CONFIG_ARCH_HAS_WALK_MEMORY=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
# CONFIG_ARCH_RANDOM is not set
CONFIG_ARCH_REQUIRE_GPIOLIB=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
CONFIG_AUDIT_ARCH=y
# CONFIG_BAMBOO is not set
CONFIG_BCH=y
# CONFIG_BLUESTONE is not set
CONFIG_BUCKMINSTER=y
CONFIG_BOOKE=y
CONFIG_BOOKE_WDT=y
CONFIG_BOUNCE=y
# CONFIG_CANYONLANDS is not set
# CONFIG_IKAREM is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_CMDLINE="rootfstype=squashfs noinitrd"
CONFIG_CMDLINE_BOOL=y
CONFIG_CONSISTENT_SIZE=0x00200000
CONFIG_CPU_BIG_ENDIAN=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
CONFIG_CRC16=y
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_DEV_PPC4XX=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_LZO=y
CONFIG_CRYPTO_MD5_PPC=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_SHA1_PPC=y
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_DECOMPRESS_GZIP=y
# CONFIG_DEFAULT_UIMAGE is not set
CONFIG_DTC=y
# CONFIG_E200 is not set
CONFIG_EARLY_PRINTK=y
# CONFIG_EBONY is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
# CONFIG_EIGER is not set
# CONFIG_EPAPR_BOOT is not set
CONFIG_EXTRA_TARGETS="uImage"
CONFIG_FREEZER=y
# CONFIG_FSL_ULI1575 is not set
CONFIG_GENERIC_ATOMIC64=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CMOS_UPDATE=y
# CONFIG_GENERIC_CSUM is not set
CONFIG_GENERIC_IO=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_NVRAM=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
# CONFIG_GENERIC_TBSYNC is not set
CONFIG_GENERIC_TIME_VSYSCALL_OLD=y
# CONFIG_GEN_RTC is not set
# CONFIG_GE_FPGA is not set
# CONFIG_GLACIER is not set
CONFIG_GLOB=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_DEVRES=y
CONFIG_GPIO_GENERIC=y
CONFIG_GPIO_GENERIC_PLATFORM=y
CONFIG_GPIO_SYSFS=y
CONFIG_HAS_DMA=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
# CONFIG_HAS_RAPIDIO is not set
# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
# CONFIG_HAVE_ARCH_BITREVERSE is not set
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_ARCH_KGDB=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_HAVE_BPF_JIT=y
CONFIG_HAVE_DEBUG_KMEMLEAK=y
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_DMA_ATTRS=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_HAVE_GENERIC_RCU_GUP=y
CONFIG_HAVE_IDE=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_HAVE_NET_DSA=y
CONFIG_HAVE_OPROFILE=y
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
# CONFIG_HAVE_SETUP_PER_CPU_AREA is not set
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_PPC4XX=y
CONFIG_HZ=1000
# CONFIG_HZ_100 is not set
CONFIG_HZ_1000=y
CONFIG_HZ_PERIODIC=y
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_IBM_IIC=y
CONFIG_IBM_EMAC=y
CONFIG_IBM_EMAC_EMAC4=y
CONFIG_IBM_EMAC_POLL_WEIGHT=32
CONFIG_IBM_EMAC_RGMII=y
CONFIG_IBM_EMAC_RXB=128
CONFIG_IBM_EMAC_RX_COPY_THRESHOLD=256
CONFIG_IBM_EMAC_RX_SKB_HEADROOM=0
CONFIG_IBM_EMAC_TAH=y
CONFIG_IBM_EMAC_TXB=128
# CONFIG_ICON is not set
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_IOMMU_HELPER is not set
# CONFIG_IPIC is not set
CONFIG_IRQCHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_IRQ_WORK=y
CONFIG_ISA_DMA_API=y
# CONFIG_KATMAI is not set
CONFIG_KERNEL_START=0xc0000000
CONFIG_LIBFDT=y
CONFIG_LOWMEM_SIZE=0x30000000
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
# CONFIG_MATH_EMULATION is not set
CONFIG_MDIO_BOARDINFO=y
# CONFIG_MMIO_NVRAM is not set
CONFIG_MODULES_USE_ELF_RELA=y
# CONFIG_MPIC is not set
# CONFIG_MPIC_U3_HT_IRQS is not set
# CONFIG_MPIC_WEIRD is not set
CONFIG_MTD_CFI_ADV_OPTIONS=y
# CONFIG_MTD_CFI_GEOMETRY is not set
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_BCH=y
CONFIG_MTD_NAND_ECC=y
CONFIG_MTD_NAND_ECC_BCH=y
CONFIG_MTD_NAND_ECC_SMC=y
CONFIG_MTD_NAND_NDFC=y
# CONFIG_MTD_SPLIT is not set
# CONFIG_MTD_SPLIT_FIRMWARE_NAME is not set
# CONFIG_MTD_SPLIT_SQUASHFS_ROOT is not set
# CONFIG_MTD_SPLIT_SUPPORT is not set
# CONFIG_MTD_UBI is not set
# CONFIG_MTD_UBI_BEB_LIMIT is not set
# CONFIG_MTD_UBI_BLOCK is not set
# CONFIG_MTD_UBI_FASTMAP is not set
# CONFIG_MTD_UBI_GLUEBI is not set
# CONFIG_MTD_UBI_WL_THRESHOLD is not set
CONFIG_NEED_DMA_MAP_STATE=y
# CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK is not set
CONFIG_NEED_PER_CPU_KM=y
CONFIG_NEED_SG_DMA_LENGTH=y
# CONFIG_NONSTATIC_KERNEL is not set
CONFIG_NOT_COHERENT_CACHE=y
CONFIG_NO_BOOTMEM=y
CONFIG_NR_IRQS=512
CONFIG_OF=y
CONFIG_OF_ADDRESS=y
CONFIG_OF_ADDRESS_PCI=y
CONFIG_OF_EARLY_FLATTREE=y
CONFIG_OF_FLATTREE=y
CONFIG_OF_GPIO=y
CONFIG_OF_IRQ=y
CONFIG_OF_MDIO=y
CONFIG_OF_MTD=y
CONFIG_OF_NET=y
CONFIG_OF_PCI=y
CONFIG_OF_PCI_IRQ=y
CONFIG_OF_RESERVED_MEM=y
CONFIG_OLD_SIGACTION=y
CONFIG_OLD_SIGSUSPEND=y
CONFIG_PAGE_OFFSET=0xc0000000
CONFIG_PCI=y
CONFIG_PCIEAER=y
CONFIG_PCIEPORTBUS=y
CONFIG_PCIE_PME=y
CONFIG_PCI_BUS_ADDR_T_64BIT=y
CONFIG_PCI_DISABLE_COMMON_QUIRKS=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCI_MSI=y
CONFIG_PGTABLE_LEVELS=2
CONFIG_PHYLIB=y
CONFIG_PHYSICAL_START=0x00000000
CONFIG_PHYS_64BIT=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_PM=y
CONFIG_PM_AUTOSLEEP=y
# CONFIG_PM_DEBUG is not set
CONFIG_PM_SLEEP=y
CONFIG_PM_WAKELOCKS=y
CONFIG_PM_WAKELOCKS_GC=y
CONFIG_PM_WAKELOCKS_LIMIT=100
CONFIG_PPC=y
CONFIG_PPC32=y
# CONFIG_PPC44x_SIMPLE is not set
CONFIG_PPC4xx_CPM=y
CONFIG_PPC4xx_GPIO=y
# CONFIG_PPC4xx_HSTA_MSI is not set
# CONFIG_PPC4xx_MSI is not set
CONFIG_PPC4xx_OCM=y
# CONFIG_PPC4xx_PCI_EXPRESS is not set
# CONFIG_PPC64 is not set
# CONFIG_PPC_47x is not set
# CONFIG_PPC_85xx is not set
# CONFIG_PPC_8xx is not set
# CONFIG_PPC_970_NAP is not set
CONFIG_PPC_ADV_DEBUG_DACS=2
CONFIG_PPC_ADV_DEBUG_DAC_RANGE=y
CONFIG_PPC_ADV_DEBUG_DVCS=2
CONFIG_PPC_ADV_DEBUG_IACS=4
CONFIG_PPC_ADV_DEBUG_REGS=y
# CONFIG_PPC_BOOK3S_32 is not set
# CONFIG_PPC_CELL is not set
# CONFIG_PPC_CELL_NATIVE is not set
# CONFIG_PPC_COPRO_BASE is not set
CONFIG_PPC_DCR=y
# CONFIG_PPC_DCR_MMIO is not set
CONFIG_PPC_DCR_NATIVE=y
# CONFIG_PPC_DOORBELL is not set
# CONFIG_PPC_EARLY_DEBUG is not set
# CONFIG_PPC_EPAPR_HV_PIC is not set
CONFIG_PPC_FPU=y
# CONFIG_PPC_I8259 is not set
# CONFIG_PPC_ICP_HV is not set
# CONFIG_PPC_ICP_NATIVE is not set
# CONFIG_PPC_ICS_RTAS is not set
CONFIG_PPC_INDIRECT_PCI=y
CONFIG_PPC_LIB_RHEAP=y
CONFIG_PPC_MMU_NOHASH=y
# CONFIG_PPC_MM_SLICES is not set
# CONFIG_PPC_MPC106 is not set
# CONFIG_PPC_MSI_BITMAP is not set
# CONFIG_PPC_P7_NAP is not set
CONFIG_PPC_PCI_CHOICE=y
# CONFIG_PPC_RTAS is not set
CONFIG_PPC_UDBG_16550=y
CONFIG_PPC_WERROR=y
# CONFIG_PPC_XICS is not set
# CONFIG_PQ2ADS is not set
CONFIG_PTE_64BIT=y
# CONFIG_RAINIER is not set
CONFIG_RAS=y
# CONFIG_RCU_STALL_COMMON is not set
CONFIG_RD_GZIP=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
# CONFIG_SAM440EP is not set
CONFIG_SCHED_HRTICK=y
# CONFIG_SCHED_INFO is not set
# CONFIG_SCSI_DMA is not set
# CONFIG_SEQUOIA is not set
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_FSL=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SIMPLE_GPIO=y
CONFIG_SPARSE_IRQ=y
CONFIG_SRCU=y
# CONFIG_STRICT_MM_TYPECHECKS is not set
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
# CONFIG_SWIOTLB is not set
CONFIG_SYSCTL_EXCEPTION_TRACE=y
# CONFIG_TAISHAN is not set
CONFIG_TASK_SIZE=0xc0000000
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_UBIFS_FS is not set
# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
# CONFIG_UBIFS_FS_LZO is not set
# CONFIG_UBIFS_FS_ZLIB is not set
CONFIG_USB_SUPPORT=y
CONFIG_VDSO32=y
# CONFIG_WARP is not set
# CONFIG_WNDR4700 is not set
CONFIG_WORD_SIZE=32
# CONFIG_XILINX_SYSACE is not set
# CONFIG_XILINX_VIRTEX440_GENERIC_BOARD is not set
CONFIG_XZ_DEC_BCJ=y
CONFIG_XZ_DEC_POWERPC=y
# CONFIG_YOSEMITE is not set
CONFIG_ZLIB_DEFLATE=y
CONFIG_ZLIB_INFLATE=y
# CONFIG_JFFS2_FS is not set
# CONFIG_SENSORS_TC654 is not set

481
target/linux/apm821xx/patches-4.4/001-crypto4xx-integrate-ppc4xx-rng-into-crypto4xx.patch
View file

@ -1,481 +0,0 @@
From 5343e674f32fb82b7a80a24b5a84eee62d3fe624 Mon Sep 17 00:00:00 2001
From: Christian Lamparter <chunkeey@googlemail.com>
Date: Mon, 18 Apr 2016 12:57:41 +0200
Subject: [PATCH] crypto4xx: integrate ppc4xx-rng into crypto4xx
This patch integrates the ppc4xx-rng driver into the existing
crypto4xx. This is because the true random number generator
is controlled and part of the security core.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
drivers/char/hw_random/Kconfig | 13 ---
drivers/char/hw_random/Makefile | 1 -
drivers/char/hw_random/ppc4xx-rng.c | 147 --------------------------------
drivers/crypto/Kconfig | 8 ++
drivers/crypto/amcc/Makefile | 1 +
drivers/crypto/amcc/crypto4xx_core.c | 7 +-
drivers/crypto/amcc/crypto4xx_core.h | 4 +
drivers/crypto/amcc/crypto4xx_reg_def.h | 1 +
drivers/crypto/amcc/crypto4xx_trng.c | 131 ++++++++++++++++++++++++++++
drivers/crypto/amcc/crypto4xx_trng.h | 34 ++++++++
10 files changed, 184 insertions(+), 163 deletions(-)
delete mode 100644 drivers/char/hw_random/ppc4xx-rng.c
create mode 100644 drivers/crypto/amcc/crypto4xx_trng.c
create mode 100644 drivers/crypto/amcc/crypto4xx_trng.h
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -268,19 +268,6 @@ config HW_RANDOM_NOMADIK
If unsure, say Y.
-config HW_RANDOM_PPC4XX
- tristate "PowerPC 4xx generic true random number generator support"
- depends on PPC && 4xx
- default HW_RANDOM
- ---help---
- This driver provides the kernel-side support for the TRNG hardware
- found in the security function of some PowerPC 4xx SoCs.
-
- To compile this driver as a module, choose M here: the
- module will be called ppc4xx-rng.
-
- If unsure, say N.
-
config HW_RANDOM_PSERIES
tristate "pSeries HW Random Number Generator support"
depends on PPC64 && IBMVIO
--- a/drivers/char/hw_random/Makefile
+++ b/drivers/char/hw_random/Makefile
@@ -22,7 +22,6 @@ obj-$(CONFIG_HW_RANDOM_TX4939) += tx4939
obj-$(CONFIG_HW_RANDOM_MXC_RNGA) += mxc-rnga.o
obj-$(CONFIG_HW_RANDOM_OCTEON) += octeon-rng.o
obj-$(CONFIG_HW_RANDOM_NOMADIK) += nomadik-rng.o
-obj-$(CONFIG_HW_RANDOM_PPC4XX) += ppc4xx-rng.o
obj-$(CONFIG_HW_RANDOM_PSERIES) += pseries-rng.o
obj-$(CONFIG_HW_RANDOM_POWERNV) += powernv-rng.o
obj-$(CONFIG_HW_RANDOM_EXYNOS) += exynos-rng.o
--- a/drivers/char/hw_random/ppc4xx-rng.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Generic PowerPC 44x RNG driver
- *
- * Copyright 2011 IBM Corporation
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; version 2 of the License.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/platform_device.h>
-#include <linux/hw_random.h>
-#include <linux/delay.h>
-#include <linux/of_address.h>
-#include <linux/of_platform.h>
-#include <asm/io.h>
-
-#define PPC4XX_TRNG_DEV_CTRL 0x60080
-
-#define PPC4XX_TRNGE 0x00020000
-#define PPC4XX_TRNG_CTRL 0x0008
-#define PPC4XX_TRNG_CTRL_DALM 0x20
-#define PPC4XX_TRNG_STAT 0x0004
-#define PPC4XX_TRNG_STAT_B 0x1
-#define PPC4XX_TRNG_DATA 0x0000
-
-#define MODULE_NAME "ppc4xx_rng"
-
-static int ppc4xx_rng_data_present(struct hwrng *rng, int wait)
-{
- void __iomem *rng_regs = (void __iomem *) rng->priv;
- int busy, i, present = 0;
-
- for (i = 0; i < 20; i++) {
- busy = (in_le32(rng_regs + PPC4XX_TRNG_STAT) & PPC4XX_TRNG_STAT_B);
- if (!busy || !wait) {
- present = 1;
- break;
- }
- udelay(10);
- }
- return present;
-}
-
-static int ppc4xx_rng_data_read(struct hwrng *rng, u32 *data)
-{
- void __iomem *rng_regs = (void __iomem *) rng->priv;
- *data = in_le32(rng_regs + PPC4XX_TRNG_DATA);
- return 4;
-}
-
-static int ppc4xx_rng_enable(int enable)
-{
- struct device_node *ctrl;
- void __iomem *ctrl_reg;
- int err = 0;
- u32 val;
-
- /* Find the main crypto device node and map it to turn the TRNG on */
- ctrl = of_find_compatible_node(NULL, NULL, "amcc,ppc4xx-crypto");
- if (!ctrl)
- return -ENODEV;
-
- ctrl_reg = of_iomap(ctrl, 0);
- if (!ctrl_reg) {
- err = -ENODEV;
- goto out;
- }
-
- val = in_le32(ctrl_reg + PPC4XX_TRNG_DEV_CTRL);
-
- if (enable)
- val |= PPC4XX_TRNGE;
- else
- val = val & ~PPC4XX_TRNGE;
-
- out_le32(ctrl_reg + PPC4XX_TRNG_DEV_CTRL, val);
- iounmap(ctrl_reg);
-
-out:
- of_node_put(ctrl);
-
- return err;
-}
-
-static struct hwrng ppc4xx_rng = {
- .name = MODULE_NAME,
- .data_present = ppc4xx_rng_data_present,
- .data_read = ppc4xx_rng_data_read,
-};
-
-static int ppc4xx_rng_probe(struct platform_device *dev)
-{
- void __iomem *rng_regs;
- int err = 0;
-
- rng_regs = of_iomap(dev->dev.of_node, 0);
- if (!rng_regs)
- return -ENODEV;
-
- err = ppc4xx_rng_enable(1);
- if (err)
- return err;
-
- out_le32(rng_regs + PPC4XX_TRNG_CTRL, PPC4XX_TRNG_CTRL_DALM);
- ppc4xx_rng.priv = (unsigned long) rng_regs;
-
- err = hwrng_register(&ppc4xx_rng);
-
- return err;
-}
-
-static int ppc4xx_rng_remove(struct platform_device *dev)
-{
- void __iomem *rng_regs = (void __iomem *) ppc4xx_rng.priv;
-
- hwrng_unregister(&ppc4xx_rng);
- ppc4xx_rng_enable(0);
- iounmap(rng_regs);
-
- return 0;
-}
-
-static const struct of_device_id ppc4xx_rng_match[] = {
- { .compatible = "ppc4xx-rng", },
- { .compatible = "amcc,ppc460ex-rng", },
- { .compatible = "amcc,ppc440epx-rng", },
- {},
-};
-MODULE_DEVICE_TABLE(of, ppc4xx_rng_match);
-
-static struct platform_driver ppc4xx_rng_driver = {
- .driver = {
- .name = MODULE_NAME,
- .of_match_table = ppc4xx_rng_match,
- },
- .probe = ppc4xx_rng_probe,
- .remove = ppc4xx_rng_remove,
-};
-
-module_platform_driver(ppc4xx_rng_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Josh Boyer <jwboyer@linux.vnet.ibm.com>");
-MODULE_DESCRIPTION("HW RNG driver for PPC 4xx processors");
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -277,6 +277,14 @@ config CRYPTO_DEV_PPC4XX
help
This option allows you to have support for AMCC crypto acceleration.
+config HW_RANDOM_PPC4XX
+ bool "PowerPC 4xx generic true random number generator support"
+ depends on CRYPTO_DEV_PPC4XX && HW_RANDOM
+ default y
+ ---help---
+ This option provides the kernel-side support for the TRNG hardware
+ found in the security function of some PowerPC 4xx SoCs.
+
config CRYPTO_DEV_OMAP_SHAM
tristate "Support for OMAP MD5/SHA1/SHA2 hw accelerator"
depends on ARCH_OMAP2PLUS
--- a/drivers/crypto/amcc/Makefile
+++ b/drivers/crypto/amcc/Makefile
@@ -1,2 +1,3 @@
obj-$(CONFIG_CRYPTO_DEV_PPC4XX) += crypto4xx.o
crypto4xx-y := crypto4xx_core.o crypto4xx_alg.o crypto4xx_sa.o
+crypto4xx-$(CONFIG_HW_RANDOM_PPC4XX) += crypto4xx_trng.o
--- a/drivers/crypto/amcc/crypto4xx_core.c
+++ b/drivers/crypto/amcc/crypto4xx_core.c
@@ -40,6 +40,7 @@
#include "crypto4xx_reg_def.h"
#include "crypto4xx_core.h"
#include "crypto4xx_sa.h"
+#include "crypto4xx_trng.h"
#define PPC4XX_SEC_VERSION_STR "0.5"
@@ -1221,6 +1222,7 @@ static int crypto4xx_probe(struct platfo
if (rc)
goto err_start_dev;
+ ppc4xx_trng_probe(core_dev);
return 0;
err_start_dev:
@@ -1248,6 +1250,8 @@ static int crypto4xx_remove(struct platf
struct device *dev = &ofdev->dev;
struct crypto4xx_core_device *core_dev = dev_get_drvdata(dev);
+ ppc4xx_trng_remove(core_dev);
+
free_irq(core_dev->irq, dev);
irq_dispose_mapping(core_dev->irq);
@@ -1268,7 +1272,7 @@ MODULE_DEVICE_TABLE(of, crypto4xx_match)
static struct platform_driver crypto4xx_driver = {
.driver = {
- .name = "crypto4xx",
+ .name = MODULE_NAME,
.of_match_table = crypto4xx_match,
},
.probe = crypto4xx_probe,
@@ -1280,4 +1284,3 @@ module_platform_driver(crypto4xx_driver)
MODULE_LICENSE("GPL");
MODULE_AUTHOR("James Hsiao <jhsiao@amcc.com>");
MODULE_DESCRIPTION("Driver for AMCC PPC4xx crypto accelerator");
-
--- a/drivers/crypto/amcc/crypto4xx_core.h
+++ b/drivers/crypto/amcc/crypto4xx_core.h
@@ -24,6 +24,8 @@
#include <crypto/internal/hash.h>
+#define MODULE_NAME "crypto4xx"
+
#define PPC460SX_SDR0_SRST 0x201
#define PPC405EX_SDR0_SRST 0x200
#define PPC460EX_SDR0_SRST 0x201
@@ -72,6 +74,7 @@ struct crypto4xx_device {
char *name;
u64 ce_phy_address;
void __iomem *ce_base;
+ void __iomem *trng_base;
void *pdr; /* base address of packet
descriptor ring */
@@ -106,6 +109,7 @@ struct crypto4xx_core_device {
struct device *device;
struct platform_device *ofdev;
struct crypto4xx_device *dev;
+ struct hwrng *trng;
u32 int_status;
u32 irq;
struct tasklet_struct tasklet;
--- a/drivers/crypto/amcc/crypto4xx_reg_def.h
+++ b/drivers/crypto/amcc/crypto4xx_reg_def.h
@@ -125,6 +125,7 @@
#define PPC4XX_INTERRUPT_CLR 0x3ffff
#define PPC4XX_PRNG_CTRL_AUTO_EN 0x3
#define PPC4XX_DC_3DES_EN 1
+#define PPC4XX_TRNG_EN 0x00020000
#define PPC4XX_INT_DESCR_CNT 4
#define PPC4XX_INT_TIMEOUT_CNT 0
#define PPC4XX_INT_CFG 1
--- /dev/null
+++ b/drivers/crypto/amcc/crypto4xx_trng.c
@@ -0,0 +1,131 @@
+/*
+ * Generic PowerPC 44x RNG driver
+ *
+ * Copyright 2011 IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/hw_random.h>
+#include <linux/delay.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/io.h>
+
+#include "crypto4xx_core.h"
+#include "crypto4xx_trng.h"
+#include "crypto4xx_reg_def.h"
+
+#define PPC4XX_TRNG_CTRL 0x0008
+#define PPC4XX_TRNG_CTRL_DALM 0x20
+#define PPC4XX_TRNG_STAT 0x0004
+#define PPC4XX_TRNG_STAT_B 0x1
+#define PPC4XX_TRNG_DATA 0x0000
+
+static int ppc4xx_trng_data_present(struct hwrng *rng, int wait)
+{
+ struct crypto4xx_device *dev = (void *)rng->priv;
+ int busy, i, present = 0;
+
+ for (i = 0; i < 20; i++) {
+ busy = (in_le32(dev->trng_base + PPC4XX_TRNG_STAT) &
+ PPC4XX_TRNG_STAT_B);
+ if (!busy || !wait) {
+ present = 1;
+ break;
+ }
+ udelay(10);
+ }
+ return present;
+}
+
+static int ppc4xx_trng_data_read(struct hwrng *rng, u32 *data)
+{
+ struct crypto4xx_device *dev = (void *)rng->priv;
+ *data = in_le32(dev->trng_base + PPC4XX_TRNG_DATA);
+ return 4;
+}
+
+static void ppc4xx_trng_enable(struct crypto4xx_device *dev, bool enable)
+{
+ u32 device_ctrl;
+
+ device_ctrl = readl(dev->ce_base + CRYPTO4XX_DEVICE_CTRL);
+ if (enable)
+ device_ctrl |= PPC4XX_TRNG_EN;
+ else
+ device_ctrl &= ~PPC4XX_TRNG_EN;
+ writel(device_ctrl, dev->ce_base + CRYPTO4XX_DEVICE_CTRL);
+}
+
+static const struct of_device_id ppc4xx_trng_match[] = {
+ { .compatible = "ppc4xx-rng", },
+ { .compatible = "amcc,ppc460ex-rng", },
+ { .compatible = "amcc,ppc440epx-rng", },
+ {},
+};
+
+void ppc4xx_trng_probe(struct crypto4xx_core_device *core_dev)
+{
+ struct crypto4xx_device *dev = core_dev->dev;
+ struct device_node *trng = NULL;
+ struct hwrng *rng = NULL;
+ int err;
+
+ /* Find the TRNG device node and map it */
+ trng = of_find_matching_node(NULL, ppc4xx_trng_match);
+ if (!trng || !of_device_is_available(trng))
+ return;
+
+ dev->trng_base = of_iomap(trng, 0);
+ of_node_put(trng);
+ if (!dev->trng_base)
+ goto err_out;
+
+ rng = kzalloc(sizeof(*rng), GFP_KERNEL);
+ if (!rng)
+ goto err_out;
+
+ rng->name = MODULE_NAME;
+ rng->data_present = ppc4xx_trng_data_present;
+ rng->data_read = ppc4xx_trng_data_read;
+ rng->priv = (unsigned long) dev;
+ core_dev->trng = rng;
+ ppc4xx_trng_enable(dev, true);
+ out_le32(dev->trng_base + PPC4XX_TRNG_CTRL, PPC4XX_TRNG_CTRL_DALM);
+ err = devm_hwrng_register(core_dev->device, core_dev->trng);
+ if (err) {
+ ppc4xx_trng_enable(dev, false);
+ dev_err(core_dev->device, "failed to register hwrng (%d).\n",
+ err);
+ goto err_out;
+ }
+ return;
+
+err_out:
+ of_node_put(trng);
+ iounmap(dev->trng_base);
+ kfree(rng);
+ dev->trng_base = NULL;
+ core_dev->trng = NULL;
+}
+
+void ppc4xx_trng_remove(struct crypto4xx_core_device *core_dev)
+{
+ if (core_dev && core_dev->trng) {
+ struct crypto4xx_device *dev = core_dev->dev;
+
+ devm_hwrng_unregister(core_dev->device, core_dev->trng);
+ ppc4xx_trng_enable(dev, false);
+ iounmap(dev->trng_base);
+ kfree(core_dev->trng);
+ }
+}
+
+MODULE_ALIAS("ppc4xx_rng");
--- /dev/null
+++ b/drivers/crypto/amcc/crypto4xx_trng.h
@@ -0,0 +1,34 @@
+/**
+ * AMCC SoC PPC4xx Crypto Driver
+ *
+ * Copyright (c) 2008 Applied Micro Circuits Corporation.
+ * All rights reserved. James Hsiao <jhsiao@amcc.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * This file defines the security context
+ * associate format.
+ */
+
+#ifndef __CRYPTO4XX_TRNG_H__
+#define __CRYPTO4XX_TRNG_H__
+
+#ifdef CONFIG_HW_RANDOM_PPC4XX
+void ppc4xx_trng_probe(struct crypto4xx_core_device *core_dev);
+void ppc4xx_trng_remove(struct crypto4xx_core_device *core_dev);
+#else
+static inline void ppc4xx_trng_probe(
+ struct crypto4xx_device *dev __maybe_unused) { }
+static inline void ppc4xx_trng_remove(
+ struct crypto4xx_device *dev __maybe_unused) { }
+#endif
+
+#endif

57
target/linux/apm821xx/patches-4.4/002-powerpc_ibm_phy_add_ar8035.patch
View file

@ -1,57 +0,0 @@
From 0c13957a43a90b1522eb616f3c9967ec44e4da1d Mon Sep 17 00:00:00 2001
From: Christian Lamparter <chunkeey@googlemail.com>
Date: Tue, 3 May 2016 13:58:24 +0200
Subject: [PATCH] drivers: net: emac: add Atheros AR8035 phy initialization
code
To: netdev@vger.kernel.org
This patch adds the phy initialization code for Qualcomm
Atheros AR8035 phy. This configuration is found in the
Cisco Meraki MR24.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
---
drivers/net/ethernet/ibm/emac/phy.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
--- a/drivers/net/ethernet/ibm/emac/phy.c
+++ b/drivers/net/ethernet/ibm/emac/phy.c
@@ -470,12 +470,38 @@ static struct mii_phy_def m88e1112_phy_d
.ops = &m88e1112_phy_ops,
};
+static int ar8035_init(struct mii_phy *phy)
+{
+ phy_write(phy, 0x1d, 0x5); /* Address debug register 5 */
+ phy_write(phy, 0x1e, 0x2d47); /* Value copied from u-boot */
+ phy_write(phy, 0x1d, 0xb); /* Address hib ctrl */
+ phy_write(phy, 0x1e, 0xbc20); /* Value copied from u-boot */
+
+ return 0;
+}
+
+static struct mii_phy_ops ar8035_phy_ops = {
+ .init = ar8035_init,
+ .setup_aneg = genmii_setup_aneg,
+ .setup_forced = genmii_setup_forced,
+ .poll_link = genmii_poll_link,
+ .read_link = genmii_read_link,
+};
+
+static struct mii_phy_def ar8035_phy_def = {
+ .phy_id = 0x004dd070,
+ .phy_id_mask = 0xfffffff0,
+ .name = "Atheros 8035 Gigabit Ethernet",
+ .ops = &ar8035_phy_ops,
+};
+
static struct mii_phy_def *mii_phy_table[] = {
&et1011c_phy_def,
&cis8201_phy_def,
&bcm5248_phy_def,
&m88e1111_phy_def,
&m88e1112_phy_def,
+ &ar8035_phy_def,
&genmii_phy_def,
NULL
};

138
target/linux/apm821xx/patches-4.4/010-dmaengine-Add-transfer-termination-synchronization-s.patch
View file

@ -1,138 +0,0 @@
From 7bd903c5ca47fde5ad52370a47776491813c772e Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <peter.ujfalusi@ti.com>
Date: Mon, 14 Dec 2015 22:47:39 +0200
Subject: [PATCH 1/3] dmaengine: core: Move and merge the code paths using
private_candidate
Channel matching with private_candidate() is used in two paths, the error
checking is slightly different in them and they are duplicating code also.
Move the code under find_candidate() to provide consistent execution and
going to allow us to reuse this mode of channel lookup later.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
drivers/dma/dmaengine.c | 81 +++++++++++++++++++++++++------------------------
1 file changed, 42 insertions(+), 39 deletions(-)
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -542,6 +542,42 @@ static struct dma_chan *private_candidat
return NULL;
}
+static struct dma_chan *find_candidate(struct dma_device *device,
+ const dma_cap_mask_t *mask,
+ dma_filter_fn fn, void *fn_param)
+{
+ struct dma_chan *chan = private_candidate(mask, device, fn, fn_param);
+ int err;
+
+ if (chan) {
+ /* Found a suitable channel, try to grab, prep, and return it.
+ * We first set DMA_PRIVATE to disable balance_ref_count as this
+ * channel will not be published in the general-purpose
+ * allocator
+ */
+ dma_cap_set(DMA_PRIVATE, device->cap_mask);
+ device->privatecnt++;
+ err = dma_chan_get(chan);
+
+ if (err) {
+ if (err == -ENODEV) {
+ pr_debug("%s: %s module removed\n", __func__,
+ dma_chan_name(chan));
+ list_del_rcu(&device->global_node);
+ } else
+ pr_debug("%s: failed to get %s: (%d)\n",
+ __func__, dma_chan_name(chan), err);
+
+ if (--device->privatecnt == 0)
+ dma_cap_clear(DMA_PRIVATE, device->cap_mask);
+
+ chan = ERR_PTR(err);
+ }
+ }
+
+ return chan ? chan : ERR_PTR(-EPROBE_DEFER);
+}
+
/**
* dma_get_slave_channel - try to get specific channel exclusively
* @chan: target channel
@@ -580,7 +616,6 @@ struct dma_chan *dma_get_any_slave_chann
{
dma_cap_mask_t mask;
struct dma_chan *chan;
- int err;
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
@@ -588,23 +623,11 @@ struct dma_chan *dma_get_any_slave_chann
/* lock against __dma_request_channel */
mutex_lock(&dma_list_mutex);
- chan = private_candidate(&mask, device, NULL, NULL);
- if (chan) {
- dma_cap_set(DMA_PRIVATE, device->cap_mask);
- device->privatecnt++;
- err = dma_chan_get(chan);
- if (err) {
- pr_debug("%s: failed to get %s: (%d)\n",
- __func__, dma_chan_name(chan), err);
- chan = NULL;
- if (--device->privatecnt == 0)
- dma_cap_clear(DMA_PRIVATE, device->cap_mask);
- }
- }
+ chan = find_candidate(device, &mask, NULL, NULL);
mutex_unlock(&dma_list_mutex);
- return chan;
+ return IS_ERR(chan) ? NULL : chan;
}
EXPORT_SYMBOL_GPL(dma_get_any_slave_channel);
@@ -621,35 +644,15 @@ struct dma_chan *__dma_request_channel(c
{
struct dma_device *device, *_d;
struct dma_chan *chan = NULL;
- int err;
/* Find a channel */
mutex_lock(&dma_list_mutex);
list_for_each_entry_safe(device, _d, &dma_device_list, global_node) {
- chan = private_candidate(mask, device, fn, fn_param);
- if (chan) {
- /* Found a suitable channel, try to grab, prep, and
- * return it. We first set DMA_PRIVATE to disable
- * balance_ref_count as this channel will not be
- * published in the general-purpose allocator
- */
- dma_cap_set(DMA_PRIVATE, device->cap_mask);
- device->privatecnt++;
- err = dma_chan_get(chan);
+ chan = find_candidate(device, mask, fn, fn_param);
+ if (!IS_ERR(chan))
+ break;
- if (err == -ENODEV) {
- pr_debug("%s: %s module removed\n",
- __func__, dma_chan_name(chan));
- list_del_rcu(&device->global_node);
- } else if (err)
- pr_debug("%s: failed to get %s: (%d)\n",
- __func__, dma_chan_name(chan), err);
- else
- break;
- if (--device->privatecnt == 0)
- dma_cap_clear(DMA_PRIVATE, device->cap_mask);
- chan = NULL;
- }
+ chan = NULL;
}
mutex_unlock(&dma_list_mutex);

335
target/linux/apm821xx/patches-4.4/011-dmaengine-core-Introduce-new-universal-API-to-reques.patch
View file

@ -1,335 +0,0 @@
From a8135d0d79e9d0ad3a4ff494fceeaae838becf38 Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <peter.ujfalusi@ti.com>
Date: Mon, 14 Dec 2015 22:47:40 +0200
Subject: [PATCH 2/3] dmaengine: core: Introduce new, universal API to request
a channel
The two API function can cover most, if not all current APIs used to
request a channel. With minimal effort dmaengine drivers, platforms and
dmaengine user drivers can be converted to use the two function.
struct dma_chan *dma_request_chan_by_mask(const dma_cap_mask_t *mask);
To request any channel matching with the requested capabilities, can be
used to request channel for memcpy, memset, xor, etc where no hardware
synchronization is needed.
struct dma_chan *dma_request_chan(struct device *dev, const char *name);
To request a slave channel. The dma_request_chan() will try to find the
channel via DT, ACPI or in case if the kernel booted in non DT/ACPI mode
it will use a filter lookup table and retrieves the needed information from
the dma_slave_map provided by the DMA drivers.
This legacy mode needs changes in platform code, in dmaengine drivers and
finally the dmaengine user drivers can be converted:
For each dmaengine driver an array of DMA device, slave and the parameter
for the filter function needs to be added:
static const struct dma_slave_map da830_edma_map[] = {
{ "davinci-mcasp.0", "rx", EDMA_FILTER_PARAM(0, 0) },
{ "davinci-mcasp.0", "tx", EDMA_FILTER_PARAM(0, 1) },
{ "davinci-mcasp.1", "rx", EDMA_FILTER_PARAM(0, 2) },
{ "davinci-mcasp.1", "tx", EDMA_FILTER_PARAM(0, 3) },
{ "davinci-mcasp.2", "rx", EDMA_FILTER_PARAM(0, 4) },
{ "davinci-mcasp.2", "tx", EDMA_FILTER_PARAM(0, 5) },
{ "spi_davinci.0", "rx", EDMA_FILTER_PARAM(0, 14) },
{ "spi_davinci.0", "tx", EDMA_FILTER_PARAM(0, 15) },
{ "da830-mmc.0", "rx", EDMA_FILTER_PARAM(0, 16) },
{ "da830-mmc.0", "tx", EDMA_FILTER_PARAM(0, 17) },
{ "spi_davinci.1", "rx", EDMA_FILTER_PARAM(0, 18) },
{ "spi_davinci.1", "tx", EDMA_FILTER_PARAM(0, 19) },
};
This information is going to be needed by the dmaengine driver, so
modification to the platform_data is needed, and the driver map should be
added to the pdata of the DMA driver:
da8xx_edma0_pdata.slave_map = da830_edma_map;
da8xx_edma0_pdata.slavecnt = ARRAY_SIZE(da830_edma_map);
The DMA driver then needs to configure the needed device -> filter_fn
mapping before it registers with dma_async_device_register() :
ecc->dma_slave.filter_map.map = info->slave_map;
ecc->dma_slave.filter_map.mapcnt = info->slavecnt;
ecc->dma_slave.filter_map.fn = edma_filter_fn;
When neither DT or ACPI lookup is available the dma_request_chan() will
try to match the requester's device name with the filter_map's list of
device names, when a match found it will use the information from the
dma_slave_map to get the channel with the dma_get_channel() internal
function.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
Documentation/dmaengine/client.txt | 23 +++-------
drivers/dma/dmaengine.c | 89 +++++++++++++++++++++++++++++++++-----
include/linux/dmaengine.h | 51 +++++++++++++++++++---
3 files changed, 127 insertions(+), 36 deletions(-)
--- a/Documentation/dmaengine/client.txt
+++ b/Documentation/dmaengine/client.txt
@@ -22,25 +22,14 @@ The slave DMA usage consists of followin
Channel allocation is slightly different in the slave DMA context,
client drivers typically need a channel from a particular DMA
controller only and even in some cases a specific channel is desired.
- To request a channel dma_request_channel() API is used.
+ To request a channel dma_request_chan() API is used.
Interface:
- struct dma_chan *dma_request_channel(dma_cap_mask_t mask,
- dma_filter_fn filter_fn,
- void *filter_param);
- where dma_filter_fn is defined as:
- typedef bool (*dma_filter_fn)(struct dma_chan *chan, void *filter_param);
+ struct dma_chan *dma_request_chan(struct device *dev, const char *name);
- The 'filter_fn' parameter is optional, but highly recommended for
- slave and cyclic channels as they typically need to obtain a specific
- DMA channel.
-
- When the optional 'filter_fn' parameter is NULL, dma_request_channel()
- simply returns the first channel that satisfies the capability mask.
-
- Otherwise, the 'filter_fn' routine will be called once for each free
- channel which has a capability in 'mask'. 'filter_fn' is expected to
- return 'true' when the desired DMA channel is found.
+ Which will find and return the 'name' DMA channel associated with the 'dev'
+ device. The association is done via DT, ACPI or board file based
+ dma_slave_map matching table.
A channel allocated via this interface is exclusive to the caller,
until dma_release_channel() is called.
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -43,6 +43,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/init.h>
#include <linux/module.h>
@@ -665,27 +666,73 @@ struct dma_chan *__dma_request_channel(c
}
EXPORT_SYMBOL_GPL(__dma_request_channel);
+static const struct dma_slave_map *dma_filter_match(struct dma_device *device,
+ const char *name,
+ struct device *dev)
+{
+ int i;
+
+ if (!device->filter.mapcnt)
+ return NULL;
+
+ for (i = 0; i < device->filter.mapcnt; i++) {
+ const struct dma_slave_map *map = &device->filter.map[i];
+
+ if (!strcmp(map->devname, dev_name(dev)) &&
+ !strcmp(map->slave, name))
+ return map;
+ }
+
+ return NULL;
+}
+
/**
- * dma_request_slave_channel_reason - try to allocate an exclusive slave channel
+ * dma_request_chan - try to allocate an exclusive slave channel
* @dev: pointer to client device structure
* @name: slave channel name
*
* Returns pointer to appropriate DMA channel on success or an error pointer.
*/
-struct dma_chan *dma_request_slave_channel_reason(struct device *dev,
- const char *name)
+struct dma_chan *dma_request_chan(struct device *dev, const char *name)
{
+ struct dma_device *d, *_d;
+ struct dma_chan *chan = NULL;
+
/* If device-tree is present get slave info from here */
if (dev->of_node)
- return of_dma_request_slave_channel(dev->of_node, name);
+ chan = of_dma_request_slave_channel(dev->of_node, name);
/* If device was enumerated by ACPI get slave info from here */
- if (ACPI_HANDLE(dev))
- return acpi_dma_request_slave_chan_by_name(dev, name);
+ if (has_acpi_companion(dev) && !chan)
+ chan = acpi_dma_request_slave_chan_by_name(dev, name);
+
+ if (chan) {
+ /* Valid channel found or requester need to be deferred */
+ if (!IS_ERR(chan) || PTR_ERR(chan) == -EPROBE_DEFER)
+ return chan;
+ }
+
+ /* Try to find the channel via the DMA filter map(s) */
+ mutex_lock(&dma_list_mutex);
+ list_for_each_entry_safe(d, _d, &dma_device_list, global_node) {
+ dma_cap_mask_t mask;
+ const struct dma_slave_map *map = dma_filter_match(d, name, dev);
+
+ if (!map)
+ continue;
+
+ dma_cap_zero(mask);
+ dma_cap_set(DMA_SLAVE, mask);
- return ERR_PTR(-ENODEV);
+ chan = find_candidate(d, &mask, d->filter.fn, map->param);
+ if (!IS_ERR(chan))
+ break;
+ }
+ mutex_unlock(&dma_list_mutex);
+
+ return chan ? chan : ERR_PTR(-EPROBE_DEFER);
}
-EXPORT_SYMBOL_GPL(dma_request_slave_channel_reason);
+EXPORT_SYMBOL_GPL(dma_request_chan);
/**
* dma_request_slave_channel - try to allocate an exclusive slave channel
@@ -697,17 +744,35 @@ EXPORT_SYMBOL_GPL(dma_request_slave_chan
struct dma_chan *dma_request_slave_channel(struct device *dev,
const char *name)
{
- struct dma_chan *ch = dma_request_slave_channel_reason(dev, name);
+ struct dma_chan *ch = dma_request_chan(dev, name);
if (IS_ERR(ch))
return NULL;
- dma_cap_set(DMA_PRIVATE, ch->device->cap_mask);
- ch->device->privatecnt++;
-
return ch;
}
EXPORT_SYMBOL_GPL(dma_request_slave_channel);
+/**
+ * dma_request_chan_by_mask - allocate a channel satisfying certain capabilities
+ * @mask: capabilities that the channel must satisfy
+ *
+ * Returns pointer to appropriate DMA channel on success or an error pointer.
+ */
+struct dma_chan *dma_request_chan_by_mask(const dma_cap_mask_t *mask)
+{
+ struct dma_chan *chan;
+
+ if (!mask)
+ return ERR_PTR(-ENODEV);
+
+ chan = __dma_request_channel(mask, NULL, NULL);
+ if (!chan)
+ chan = ERR_PTR(-ENODEV);
+
+ return chan;
+}
+EXPORT_SYMBOL_GPL(dma_request_chan_by_mask);
+
void dma_release_channel(struct dma_chan *chan)
{
mutex_lock(&dma_list_mutex);
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -607,11 +607,38 @@ enum dmaengine_alignment {
};
/**
+ * struct dma_slave_map - associates slave device and it's slave channel with
+ * parameter to be used by a filter function
+ * @devname: name of the device
+ * @slave: slave channel name
+ * @param: opaque parameter to pass to struct dma_filter.fn
+ */
+struct dma_slave_map {
+ const char *devname;
+ const char *slave;
+ void *param;
+};
+
+/**
+ * struct dma_filter - information for slave device/channel to filter_fn/param
+ * mapping
+ * @fn: filter function callback
+ * @mapcnt: number of slave device/channel in the map
+ * @map: array of channel to filter mapping data
+ */
+struct dma_filter {
+ dma_filter_fn fn;
+ int mapcnt;
+ const struct dma_slave_map *map;
+};
+
+/**
* struct dma_device - info on the entity supplying DMA services
* @chancnt: how many DMA channels are supported
* @privatecnt: how many DMA channels are requested by dma_request_channel
* @channels: the list of struct dma_chan
* @global_node: list_head for global dma_device_list
+ * @filter: information for device/slave to filter function/param mapping
* @cap_mask: one or more dma_capability flags
* @max_xor: maximum number of xor sources, 0 if no capability
* @max_pq: maximum number of PQ sources and PQ-continue capability
@@ -666,6 +693,7 @@ struct dma_device {
unsigned int privatecnt;
struct list_head channels;
struct list_head global_node;
+ struct dma_filter filter;
dma_cap_mask_t cap_mask;
unsigned short max_xor;
unsigned short max_pq;
@@ -1140,9 +1168,11 @@ enum dma_status dma_wait_for_async_tx(st
void dma_issue_pending_all(void);
struct dma_chan *__dma_request_channel(const dma_cap_mask_t *mask,
dma_filter_fn fn, void *fn_param);
-struct dma_chan *dma_request_slave_channel_reason(struct device *dev,
- const char *name);
struct dma_chan *dma_request_slave_channel(struct device *dev, const char *name);
+
+struct dma_chan *dma_request_chan(struct device *dev, const char *name);
+struct dma_chan *dma_request_chan_by_mask(const dma_cap_mask_t *mask);
+
void dma_release_channel(struct dma_chan *chan);
int dma_get_slave_caps(struct dma_chan *chan, struct dma_slave_caps *caps);
#else
@@ -1166,16 +1196,21 @@ static inline struct dma_chan *__dma_req
{
return NULL;
}
-static inline struct dma_chan *dma_request_slave_channel_reason(
- struct device *dev, const char *name)
-{
- return ERR_PTR(-ENODEV);
-}
static inline struct dma_chan *dma_request_slave_channel(struct device *dev,
const char *name)
{
return NULL;
}
+static inline struct dma_chan *dma_request_chan(struct device *dev,
+ const char *name)
+{
+ return ERR_PTR(-ENODEV);
+}
+static inline struct dma_chan *dma_request_chan_by_mask(
+ const dma_cap_mask_t *mask)
+{
+ return ERR_PTR(-ENODEV);
+}
static inline void dma_release_channel(struct dma_chan *chan)
{
}
@@ -1186,6 +1221,8 @@ static inline int dma_get_slave_caps(str
}
#endif
+#define dma_request_slave_channel_reason(dev, name) dma_request_chan(dev, name)
+
static inline int dmaengine_desc_set_reuse(struct dma_async_tx_descriptor *tx)
{
struct dma_slave_caps caps;

282
target/linux/apm821xx/patches-4.4/012-dmaengine-Add-transfer-termination-synchronization-s.patch
View file

@ -1,282 +0,0 @@
From b36f09c3c441a6e59eab9315032e7d546571de3f Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 20 Oct 2015 11:46:28 +0200
Subject: [PATCH] dmaengine: Add transfer termination synchronization support
The DMAengine API has a long standing race condition that is inherent to
the API itself. Calling dmaengine_terminate_all() is supposed to stop and
abort any pending or active transfers that have previously been submitted.
Unfortunately it is possible that this operation races against a currently
running (or with some drivers also scheduled) completion callback.
Since the API allows dmaengine_terminate_all() to be called from atomic
context as well as from within a completion callback it is not possible to
synchronize to the execution of the completion callback from within
dmaengine_terminate_all() itself.
This means that a user of the DMAengine API does not know when it is safe
to free resources used in the completion callback, which can result in a
use-after-free race condition.
This patch addresses the issue by introducing an explicit synchronization
primitive to the DMAengine API called dmaengine_synchronize().
The existing dmaengine_terminate_all() is deprecated in favor of
dmaengine_terminate_sync() and dmaengine_terminate_async(). The former
aborts all pending and active transfers and synchronizes to the current
context, meaning it will wait until all running completion callbacks have
finished. This means it is only possible to call this function from
non-atomic context. The later function does not synchronize, but can still
be used in atomic context or from within a complete callback. It has to be
followed up by dmaengine_synchronize() before a client can free the
resources used in a completion callback.
In addition to this the semantics of the device_terminate_all() callback
are slightly relaxed by this patch. It is now OK for a driver to only
schedule the termination of the active transfer, but does not necessarily
have to wait until the DMA controller has completely stopped. The driver
must ensure though that the controller has stopped and no longer accesses
any memory when the device_synchronize() callback returns.
This was in part done since most drivers do not pay attention to this
anyway at the moment and to emphasize that this needs to be done when the
device_synchronize() callback is implemented. But it also helps with
implementing support for devices where stopping the controller can require
operations that may sleep.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
Documentation/dmaengine/client.txt | 38 ++++++++++++++-
Documentation/dmaengine/provider.txt | 20 +++++++-
drivers/dma/dmaengine.c | 5 +-
include/linux/dmaengine.h | 90 ++++++++++++++++++++++++++++++++++++
4 files changed, 148 insertions(+), 5 deletions(-)
--- a/Documentation/dmaengine/client.txt
+++ b/Documentation/dmaengine/client.txt
@@ -117,7 +117,7 @@ The slave DMA usage consists of followin
transaction.
For cyclic DMA, a callback function may wish to terminate the
- DMA via dmaengine_terminate_all().
+ DMA via dmaengine_terminate_async().
Therefore, it is important that DMA engine drivers drop any
locks before calling the callback function which may cause a
@@ -155,12 +155,29 @@ The slave DMA usage consists of followin
Further APIs:
-1. int dmaengine_terminate_all(struct dma_chan *chan)
+1. int dmaengine_terminate_sync(struct dma_chan *chan)
+ int dmaengine_terminate_async(struct dma_chan *chan)
+ int dmaengine_terminate_all(struct dma_chan *chan) /* DEPRECATED */
This causes all activity for the DMA channel to be stopped, and may
discard data in the DMA FIFO which hasn't been fully transferred.
No callback functions will be called for any incomplete transfers.
+ Two variants of this function are available.
+
+ dmaengine_terminate_async() might not wait until the DMA has been fully
+ stopped or until any running complete callbacks have finished. But it is
+ possible to call dmaengine_terminate_async() from atomic context or from
+ within a complete callback. dmaengine_synchronize() must be called before it
+ is safe to free the memory accessed by the DMA transfer or free resources
+ accessed from within the complete callback.
+
+ dmaengine_terminate_sync() will wait for the transfer and any running
+ complete callbacks to finish before it returns. But the function must not be
+ called from atomic context or from within a complete callback.
+
+ dmaengine_terminate_all() is deprecated and should not be used in new code.
+
2. int dmaengine_pause(struct dma_chan *chan)
This pauses activity on the DMA channel without data loss.
@@ -186,3 +203,20 @@ Further APIs:
a running DMA channel. It is recommended that DMA engine users
pause or stop (via dmaengine_terminate_all()) the channel before
using this API.
+
+5. void dmaengine_synchronize(struct dma_chan *chan)
+
+ Synchronize the termination of the DMA channel to the current context.
+
+ This function should be used after dmaengine_terminate_async() to synchronize
+ the termination of the DMA channel to the current context. The function will
+ wait for the transfer and any running complete callbacks to finish before it
+ returns.
+
+ If dmaengine_terminate_async() is used to stop the DMA channel this function
+ must be called before it is safe to free memory accessed by previously
+ submitted descriptors or to free any resources accessed within the complete
+ callback of previously submitted descriptors.
+
+ The behavior of this function is undefined if dma_async_issue_pending() has
+ been called between dmaengine_terminate_async() and this function.
--- a/Documentation/dmaengine/provider.txt
+++ b/Documentation/dmaengine/provider.txt
@@ -327,8 +327,24 @@ supported.
* device_terminate_all
- Aborts all the pending and ongoing transfers on the channel
- - This command should operate synchronously on the channel,
- terminating right away all the channels
+ - For aborted transfers the complete callback should not be called
+ - Can be called from atomic context or from within a complete
+ callback of a descriptor. Must not sleep. Drivers must be able
+ to handle this correctly.
+ - Termination may be asynchronous. The driver does not have to
+ wait until the currently active transfer has completely stopped.
+ See device_synchronize.
+
+ * device_synchronize
+ - Must synchronize the termination of a channel to the current
+ context.
+ - Must make sure that memory for previously submitted
+ descriptors is no longer accessed by the DMA controller.
+ - Must make sure that all complete callbacks for previously
+ submitted descriptors have finished running and none are
+ scheduled to run.
+ - May sleep.
+
Misc notes (stuff that should be documented, but don't really know
where to put them)
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -266,8 +266,11 @@ static void dma_chan_put(struct dma_chan
module_put(dma_chan_to_owner(chan));
/* This channel is not in use anymore, free it */
- if (!chan->client_count && chan->device->device_free_chan_resources)
+ if (!chan->client_count && chan->device->device_free_chan_resources) {
+ /* Make sure all operations have completed */
+ dmaengine_synchronize(chan);
chan->device->device_free_chan_resources(chan);
+ }
/* If the channel is used via a DMA request router, free the mapping */
if (chan->router && chan->router->route_free) {
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -681,6 +681,8 @@ struct dma_filter {
* paused. Returns 0 or an error code
* @device_terminate_all: Aborts all transfers on a channel. Returns 0
* or an error code
+ * @device_synchronize: Synchronizes the termination of a transfers to the
+ * current context.
* @device_tx_status: poll for transaction completion, the optional
* txstate parameter can be supplied with a pointer to get a
* struct with auxiliary transfer status information, otherwise the call
@@ -765,6 +767,7 @@ struct dma_device {
int (*device_pause)(struct dma_chan *chan);
int (*device_resume)(struct dma_chan *chan);
int (*device_terminate_all)(struct dma_chan *chan);
+ void (*device_synchronize)(struct dma_chan *chan);
enum dma_status (*device_tx_status)(struct dma_chan *chan,
dma_cookie_t cookie,
@@ -856,6 +859,13 @@ static inline struct dma_async_tx_descri
src_sg, src_nents, flags);
}
+/**
+ * dmaengine_terminate_all() - Terminate all active DMA transfers
+ * @chan: The channel for which to terminate the transfers
+ *
+ * This function is DEPRECATED use either dmaengine_terminate_sync() or
+ * dmaengine_terminate_async() instead.
+ */
static inline int dmaengine_terminate_all(struct dma_chan *chan)
{
if (chan->device->device_terminate_all)
@@ -864,6 +874,86 @@ static inline int dmaengine_terminate_al
return -ENOSYS;
}
+/**
+ * dmaengine_terminate_async() - Terminate all active DMA transfers
+ * @chan: The channel for which to terminate the transfers
+ *
+ * Calling this function will terminate all active and pending descriptors
+ * that have previously been submitted to the channel. It is not guaranteed
+ * though that the transfer for the active descriptor has stopped when the
+ * function returns. Furthermore it is possible the complete callback of a
+ * submitted transfer is still running when this function returns.
+ *
+ * dmaengine_synchronize() needs to be called before it is safe to free
+ * any memory that is accessed by previously submitted descriptors or before
+ * freeing any resources accessed from within the completion callback of any
+ * perviously submitted descriptors.
+ *
+ * This function can be called from atomic context as well as from within a
+ * complete callback of a descriptor submitted on the same channel.
+ *
+ * If none of the two conditions above apply consider using
+ * dmaengine_terminate_sync() instead.
+ */
+static inline int dmaengine_terminate_async(struct dma_chan *chan)
+{
+ if (chan->device->device_terminate_all)
+ return chan->device->device_terminate_all(chan);
+
+ return -EINVAL;
+}
+
+/**
+ * dmaengine_synchronize() - Synchronize DMA channel termination
+ * @chan: The channel to synchronize
+ *
+ * Synchronizes to the DMA channel termination to the current context. When this
+ * function returns it is guaranteed that all transfers for previously issued
+ * descriptors have stopped and and it is safe to free the memory assoicated
+ * with them. Furthermore it is guaranteed that all complete callback functions
+ * for a previously submitted descriptor have finished running and it is safe to
+ * free resources accessed from within the complete callbacks.
+ *
+ * The behavior of this function is undefined if dma_async_issue_pending() has
+ * been called between dmaengine_terminate_async() and this function.
+ *
+ * This function must only be called from non-atomic context and must not be
+ * called from within a complete callback of a descriptor submitted on the same
+ * channel.
+ */
+static inline void dmaengine_synchronize(struct dma_chan *chan)
+{
+ if (chan->device->device_synchronize)
+ chan->device->device_synchronize(chan);
+}
+
+/**
+ * dmaengine_terminate_sync() - Terminate all active DMA transfers
+ * @chan: The channel for which to terminate the transfers
+ *
+ * Calling this function will terminate all active and pending transfers
+ * that have previously been submitted to the channel. It is similar to
+ * dmaengine_terminate_async() but guarantees that the DMA transfer has actually
+ * stopped and that all complete callbacks have finished running when the
+ * function returns.
+ *
+ * This function must only be called from non-atomic context and must not be
+ * called from within a complete callback of a descriptor submitted on the same
+ * channel.
+ */
+static inline int dmaengine_terminate_sync(struct dma_chan *chan)
+{
+ int ret;
+
+ ret = dmaengine_terminate_async(chan);
+ if (ret)
+ return ret;
+
+ dmaengine_synchronize(chan);
+
+ return 0;
+}
+
static inline int dmaengine_pause(struct dma_chan *chan)
{
if (chan->device->device_pause)

1517
target/linux/apm821xx/patches-4.4/015-dmaengine-dw-fixed.patch
View file

File diff suppressed because it is too large Load diff

1083
target/linux/apm821xx/patches-4.4/020-sata-dwc.patch
View file

File diff suppressed because it is too large Load diff

209
target/linux/apm821xx/patches-4.4/040-backport_leds-convert-IDE-trigger-to-common-disk-trigger.patch
View file

@ -1,209 +0,0 @@
From eb25cb9956cc9384b7fa0d75dec908c9fac8c444 Mon Sep 17 00:00:00 2001
From: Stephan Linz <linz@li-pro.net>
Date: Fri, 10 Jun 2016 07:59:56 +0200
Subject: [PATCH] leds: convert IDE trigger to common disk trigger
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This patch converts the IDE specific LED trigger to a generic disk
activity LED trigger. The libata core is now a trigger source just
like before the IDE disk driver. It's merely a replacement of the
string ide by disk.
The patch is taken from http://dev.gentoo.org/~josejx/ata.patch and is
widely used by any ibook/powerbook owners with great satisfaction.
Likewise, it is very often used successfully on different ARM platforms.
Unlike the original patch, the existing 'ide-disk' trigger is still
available for backward compatibility. That reduce the amount of patches
in affected device trees out of the mainline kernel. For further
development, the new name 'disk-activity' should be used.
Cc: Joseph Jezak <josejx@gentoo.org>
Cc: Jörg Sommer <joerg@alea.gnuu.de>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Stephan Linz <linz@li-pro.net>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
---
drivers/ata/libata-core.c | 4 ++++
drivers/ide/ide-disk.c | 2 +-
drivers/leds/trigger/Kconfig | 8 +++----
drivers/leds/trigger/Makefile | 2 +-
drivers/leds/trigger/ledtrig-disk.c | 41 +++++++++++++++++++++++++++++++++
drivers/leds/trigger/ledtrig-ide-disk.c | 36 -----------------------------
include/linux/leds.h | 6 ++---
8 files changed, 55 insertions(+), 46 deletions(-)
create mode 100644 drivers/leds/trigger/ledtrig-disk.c
delete mode 100644 drivers/leds/trigger/ledtrig-ide-disk.c
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -67,6 +67,7 @@
#include <asm/byteorder.h>
#include <linux/cdrom.h>
#include <linux/ratelimit.h>
+#include <linux/leds.h>
#include <linux/pm_runtime.h>
#include <linux/platform_device.h>
@@ -4914,6 +4915,9 @@ void ata_qc_complete(struct ata_queued_c
{
struct ata_port *ap = qc->ap;
+ /* Trigger the LED (if available) */
+ ledtrig_disk_activity();
+
/* XXX: New EH and old EH use different mechanisms to
* synchronize EH with regular execution path.
*
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -186,7 +186,7 @@ static ide_startstop_t ide_do_rw_disk(id
BUG_ON(drive->dev_flags & IDE_DFLAG_BLOCKED);
BUG_ON(rq->cmd_type != REQ_TYPE_FS);
- ledtrig_ide_activity();
+ ledtrig_disk_activity();
pr_debug("%s: %sing: block=%llu, sectors=%u\n",
drive->name, rq_data_dir(rq) == READ ? "read" : "writ",
--- a/drivers/leds/trigger/Kconfig
+++ b/drivers/leds/trigger/Kconfig
@@ -33,12 +33,12 @@ config LEDS_TRIGGER_ONESHOT
If unsure, say Y.
-config LEDS_TRIGGER_IDE_DISK
- bool "LED IDE Disk Trigger"
- depends on IDE_GD_ATA
+config LEDS_TRIGGER_DISK
+ bool "LED Disk Trigger"
+ depends on IDE_GD_ATA || ATA
depends on LEDS_TRIGGERS
help
- This allows LEDs to be controlled by IDE disk activity.
+ This allows LEDs to be controlled by disk activity.
If unsure, say Y.
config LEDS_TRIGGER_HEARTBEAT
--- a/drivers/leds/trigger/Makefile
+++ b/drivers/leds/trigger/Makefile
@@ -1,6 +1,6 @@
obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o
obj-$(CONFIG_LEDS_TRIGGER_ONESHOT) += ledtrig-oneshot.o
-obj-$(CONFIG_LEDS_TRIGGER_IDE_DISK) += ledtrig-ide-disk.o
+obj-$(CONFIG_LEDS_TRIGGER_DISK) += ledtrig-disk.o
obj-$(CONFIG_LEDS_TRIGGER_HEARTBEAT) += ledtrig-heartbeat.o
obj-$(CONFIG_LEDS_TRIGGER_BACKLIGHT) += ledtrig-backlight.o
obj-$(CONFIG_LEDS_TRIGGER_GPIO) += ledtrig-gpio.o
--- /dev/null
+++ b/drivers/leds/trigger/ledtrig-disk.c
@@ -0,0 +1,41 @@
+/*
+ * LED Disk Activity Trigger
+ *
+ * Copyright 2006 Openedhand Ltd.
+ *
+ * Author: Richard Purdie <rpurdie@openedhand.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/leds.h>
+
+#define BLINK_DELAY 30
+
+DEFINE_LED_TRIGGER(ledtrig_disk);
+DEFINE_LED_TRIGGER(ledtrig_ide);
+
+void ledtrig_disk_activity(void)
+{
+ unsigned long blink_delay = BLINK_DELAY;
+
+ led_trigger_blink_oneshot(ledtrig_disk,
+ &blink_delay, &blink_delay, 0);
+ led_trigger_blink_oneshot(ledtrig_ide,
+ &blink_delay, &blink_delay, 0);
+}
+EXPORT_SYMBOL(ledtrig_disk_activity);
+
+static int __init ledtrig_disk_init(void)
+{
+ led_trigger_register_simple("disk-activity", &ledtrig_disk);
+ led_trigger_register_simple("ide-disk", &ledtrig_ide);
+
+ return 0;
+}
+device_initcall(ledtrig_disk_init);
--- a/drivers/leds/trigger/ledtrig-ide-disk.c
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * LED IDE-Disk Activity Trigger
- *
- * Copyright 2006 Openedhand Ltd.
- *
- * Author: Richard Purdie <rpurdie@openedhand.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/leds.h>
-
-#define BLINK_DELAY 30
-
-DEFINE_LED_TRIGGER(ledtrig_ide);
-static unsigned long ide_blink_delay = BLINK_DELAY;
-
-void ledtrig_ide_activity(void)
-{
- led_trigger_blink_oneshot(ledtrig_ide,
- &ide_blink_delay, &ide_blink_delay, 0);
-}
-EXPORT_SYMBOL(ledtrig_ide_activity);
-
-static int __init ledtrig_ide_init(void)
-{
- led_trigger_register_simple("ide-disk", &ledtrig_ide);
- return 0;
-}
-
-static void __exit ledtrig_ide_exit(void)
-{
- led_trigger_unregister_simple(ledtrig_ide);
-}
-
-module_init(ledtrig_ide_init);
-module_exit(ledtrig_ide_exit);
-
-MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>");
-MODULE_DESCRIPTION("LED IDE Disk Activity Trigger");
-MODULE_LICENSE("GPL");
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -308,10 +308,10 @@ static inline void *led_get_trigger_data
#endif /* CONFIG_LEDS_TRIGGERS */
/* Trigger specific functions */
-#ifdef CONFIG_LEDS_TRIGGER_IDE_DISK
-extern void ledtrig_ide_activity(void);
+#ifdef CONFIG_LEDS_TRIGGER_DISK
+extern void ledtrig_disk_activity(void);
#else
-static inline void ledtrig_ide_activity(void) {}
+static inline void ledtrig_disk_activity(void) {}
#endif
#if defined(CONFIG_LEDS_TRIGGER_CAMERA) || defined(CONFIG_LEDS_TRIGGER_CAMERA_MODULE)

32
target/linux/apm821xx/patches-4.4/200-add-meraki-mr24-ikarem-support.patch
View file

@ -1,32 +0,0 @@
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
@@ -40,6 +40,19 @@ config EBONY
help
This option enables support for the IBM PPC440GP evaluation board.
+config IKAREM
+ bool "Ikarem"
+ depends on 44x
+ default n
+ select PPC44x_SIMPLE
+ select APM821xx
+ select PCI_MSI
+ select PPC4xx_MSI
+ select PPC4xx_PCI_EXPRESS
+ select IBM_EMAC_RGMII
+ help
+ This option enables support for the Cisco Meraki MR24 (Ikarem) Access Point.
+
config SAM440EP
bool "Sam440ep"
depends on 44x
--- a/arch/powerpc/platforms/44x/ppc44x_simple.c
+++ b/arch/powerpc/platforms/44x/ppc44x_simple.c
@@ -62,6 +62,7 @@ static char *board[] __initdata = {
"amcc,sequoia",
"amcc,taishan",
"amcc,yosemite",
+ "meraki,ikarem",
"mosaixtech,icon"
};

30
target/linux/apm821xx/patches-4.4/201-add-amcc-apollo3g-support.patch
View file

@ -1,30 +0,0 @@
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
@@ -143,6 +143,17 @@ config CANYONLANDS
help
This option enables support for the AMCC PPC460EX evaluation board.
+config APOLLO3G
+ bool "Apollo3G"
+ depends on 44x
+ default n
+ select PPC44x_SIMPLE
+ select APM821xx
+ select IBM_EMAC_RGMII
+ select 460EX
+ help
+ This option enables support for the AMCC Apollo 3G board.
+
config GLACIER
bool "Glacier"
depends on 44x
--- a/arch/powerpc/platforms/44x/ppc44x_simple.c
+++ b/arch/powerpc/platforms/44x/ppc44x_simple.c
@@ -50,6 +50,7 @@ machine_device_initcall(ppc44x_simple, p
* board.c file for it rather than adding it to this list.
*/
static char *board[] __initdata = {
+ "amcc,apollo3g",
"amcc,arches",
"amcc,bamboo",
"apm,bluestone",

32
target/linux/apm821xx/patches-4.4/202-add-netgear-wndr4700-support.patch
View file

@ -1,32 +0,0 @@
--- a/arch/powerpc/platforms/44x/Makefile
+++ b/arch/powerpc/platforms/44x/Makefile
@@ -3,6 +3,7 @@ ifneq ($(CONFIG_PPC4xx_CPM),y)
obj-$(CONFIG_44x) += idle.o
endif
obj-$(CONFIG_PPC44x_SIMPLE) += ppc44x_simple.o
+obj-$(CONFIG_WNDR4700) += wndr4700.o
obj-$(CONFIG_EBONY) += ebony.o
obj-$(CONFIG_SAM440EP) += sam440ep.o
obj-$(CONFIG_WARP) += warp.o
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
@@ -260,6 +260,19 @@ config ICON
help
This option enables support for the AMCC PPC440SPe evaluation board.
+config WNDR4700
+ bool "WNDR4700"
+ depends on 44x
+ default n
+ select APM821xx
+ select PCI_MSI
+ select PPC4xx_MSI
+ select PPC4xx_PCI_EXPRESS
+ select IBM_EMAC_RGMII
+ select 460EX
+ help
+ This option enables support for the Netgear WNDR4700/WNDR4720 board.
+
config XILINX_VIRTEX440_GENERIC_BOARD
bool "Generic Xilinx Virtex 5 FXT board support"
depends on 44x

32
target/linux/apm821xx/patches-4.4/203-add-meraki-mx60-buckminster-support.patch
View file

@ -1,32 +0,0 @@
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
@@ -30,6 +30,19 @@ config BLUESTONE
help
This option enables support for the APM APM821xx Evaluation board.
+config BUCKMINSTER
+ bool "Buckminster"
+ depends on 44x
+ default n
+ select APM821xx
+ select PCI_MSI
+ select PPC4xx_MSI
+ select PPC4xx_PCI_EXPRESS
+ select IBM_EMAC_RGMII
+ select 460EX
+ help
+ This option enables support for the Cisco Meraki MX60/MX60W (Buckminster) Security Appliance
+
config EBONY
bool "Ebony"
depends on 44x
--- a/arch/powerpc/platforms/44x/ppc44x_simple.c
+++ b/arch/powerpc/platforms/44x/ppc44x_simple.c
@@ -63,6 +63,7 @@ static char *board[] __initdata = {
"amcc,sequoia",
"amcc,taishan",
"amcc,yosemite",
+ "meraki,buckminster",
"meraki,ikarem",
"mosaixtech,icon"
};

51
target/linux/apm821xx/patches-4.4/300-fix-atheros-nics-on-apm82181.patch
View file

@ -1,51 +0,0 @@
--- a/arch/powerpc/sysdev/ppc4xx_pci.c
+++ b/arch/powerpc/sysdev/ppc4xx_pci.c
@@ -1066,15 +1066,24 @@ static int __init apm821xx_pciex_init_po
u32 val;
/*
- * Do a software reset on PCIe ports.
- * This code is to fix the issue that pci drivers doesn't re-assign
- * bus number for PCIE devices after Uboot
- * scanned and configured all the buses (eg. PCIE NIC IntelPro/1000
- * PT quad port, SAS LSI 1064E)
+ * Only reset the PHY when no link is currently established.
+ * This is for the Atheros PCIe board which has problems to establish
+ * the link (again) after this PHY reset. All other currently tested
+ * PCIe boards don't show this problem.
*/
-
- mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x0);
- mdelay(10);
+ val = mfdcri(SDR0, port->sdr_base + PESDRn_LOOP);
+ if (!(val & 0x00001000)) {
+ /*
+ * Do a software reset on PCIe ports.
+ * This code is to fix the issue that pci drivers doesn't re-assign
+ * bus number for PCIE devices after Uboot
+ * scanned and configured all the buses (eg. PCIE NIC IntelPro/1000
+ * PT quad port, SAS LSI 1064E)
+ */
+
+ mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x0);
+ mdelay(10);
+ }
if (port->endpoint)
val = PTYPE_LEGACY_ENDPOINT << 20;
@@ -1091,9 +1100,12 @@ static int __init apm821xx_pciex_init_po
mtdcri(SDR0, PESDR0_460EX_L0DRV, 0x00000130);
mtdcri(SDR0, PESDR0_460EX_L0CLK, 0x00000006);
- mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x10000000);
- mdelay(50);
- mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x30000000);
+ val = mfdcri(SDR0, port->sdr_base + PESDRn_LOOP);
+ if (!(val & 0x00001000)) {
+ mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x10000000);
+ mdelay(50);
+ mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x30000000);
+ }
mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET,
mfdcri(SDR0, port->sdr_base + PESDRn_RCSSET) |

14
target/linux/apm821xx/patches-4.4/301-fix-memory-map-wndr4700.patch
View file

@ -1,14 +0,0 @@
--- a/arch/powerpc/sysdev/ppc4xx_pci.c
+++ b/arch/powerpc/sysdev/ppc4xx_pci.c
@@ -1913,9 +1913,9 @@ static void __init ppc4xx_configure_pcie
* if it works
*/
out_le32(mbase + PECFG_PIM0LAL, 0x00000000);
- out_le32(mbase + PECFG_PIM0LAH, 0x00000000);
+ out_le32(mbase + PECFG_PIM0LAH, 0x00000008);
out_le32(mbase + PECFG_PIM1LAL, 0x00000000);
- out_le32(mbase + PECFG_PIM1LAH, 0x00000000);
+ out_le32(mbase + PECFG_PIM1LAH, 0x0000000c);
out_le32(mbase + PECFG_PIM01SAH, 0xffff0000);
out_le32(mbase + PECFG_PIM01SAL, 0x00000000);

52
target/linux/apm821xx/patches-4.4/701-powerpc_ibm_apm82181_phyclk_fix.patch
View file

@ -1,52 +0,0 @@
--- a/drivers/net/ethernet/ibm/emac/core.c
+++ b/drivers/net/ethernet/ibm/emac/core.c
@@ -129,6 +129,7 @@ static inline void emac_report_timeout_e
{
if (emac_has_feature(dev, EMAC_FTR_440GX_PHY_CLK_FIX |
EMAC_FTR_460EX_PHY_CLK_FIX |
+ EMAC_FTR_APM821XX_PHY_CLK_FIX |
EMAC_FTR_440EP_PHY_CLK_FIX))
DBG(dev, "%s" NL, error);
else if (net_ratelimit())
@@ -146,6 +147,10 @@ static inline void emac_rx_clk_tx(struct
if (emac_has_feature(dev, EMAC_FTR_440EP_PHY_CLK_FIX))
dcri_clrset(SDR0, SDR0_MFR,
0, SDR0_MFR_ECS >> dev->cell_index);
+
+ if (emac_has_feature(dev, EMAC_FTR_APM821XX_PHY_CLK_FIX))
+ dcri_clrset(SDR0, SDR0_ETH_CFG,
+ 0, 0x00000100 >> dev->cell_index);
#endif
}
@@ -155,6 +160,10 @@ static inline void emac_rx_clk_default(s
if (emac_has_feature(dev, EMAC_FTR_440EP_PHY_CLK_FIX))
dcri_clrset(SDR0, SDR0_MFR,
SDR0_MFR_ECS >> dev->cell_index, 0);
+
+ if (emac_has_feature(dev, EMAC_FTR_APM821XX_PHY_CLK_FIX))
+ dcri_clrset(SDR0, SDR0_ETH_CFG,
+ 0x00000100 >> dev->cell_index, 0);
#endif
}
@@ -2587,7 +2596,7 @@ static int emac_init_config(struct emac_
if (of_device_is_compatible(np, "ibm,emac-apm821xx")) {
dev->features |= (EMAC_APM821XX_REQ_JUMBO_FRAME_SIZE |
EMAC_FTR_APM821XX_NO_HALF_DUPLEX |
- EMAC_FTR_460EX_PHY_CLK_FIX);
+ EMAC_FTR_APM821XX_PHY_CLK_FIX);
}
} else if (of_device_is_compatible(np, "ibm,emac4")) {
dev->features |= EMAC_FTR_EMAC4;
--- a/drivers/net/ethernet/ibm/emac/core.h
+++ b/drivers/net/ethernet/ibm/emac/core.h
@@ -333,6 +333,8 @@ struct emac_instance {
*/
#define EMAC_FTR_APM821XX_NO_HALF_DUPLEX 0x00001000
+#define EMAC_FTR_APM821XX_PHY_CLK_FIX 0x000002000
+
/* Right now, we don't quite handle the always/possible masks on the
* most optimal way as we don't have a way to say something like
* always EMAC4. Patches welcome.

328
target/linux/apm821xx/patches-4.4/702-powerpc_ibm_phy_add_dt_parser.patch
View file

@ -1,328 +0,0 @@
From 59b394d0d2b2e11687e757820c52d6470d15a9c5 Mon Sep 17 00:00:00 2001
From: Christian Lamparter <chunkeey@gmail.com>
Date: Mon, 13 Jun 2016 15:42:21 +0200
Subject: [PATCH] phy device tree support for emac
---
drivers/net/ethernet/ibm/emac/core.c | 261 +++++++++++++++++++++++++++++++++++
drivers/net/ethernet/ibm/emac/core.h | 4 +
2 files changed, 265 insertions(+)
--- a/drivers/net/ethernet/ibm/emac/core.c
+++ b/drivers/net/ethernet/ibm/emac/core.c
@@ -42,6 +42,7 @@
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/of_net.h>
+#include <linux/of_mdio.h>
#include <linux/slab.h>
#include <asm/processor.h>
@@ -2392,6 +2393,246 @@ static int emac_read_uint_prop(struct de
return 0;
}
+static void emac_adjust_link(struct net_device *ndev)
+{
+ struct emac_instance *dev = netdev_priv(ndev);
+ struct phy_device *phy = dev->phy_dev;
+
+ dev->phy.autoneg = phy->autoneg;
+ dev->phy.speed = phy->speed;
+ dev->phy.duplex = phy->duplex;
+ dev->phy.pause = phy->pause;
+ dev->phy.asym_pause = phy->asym_pause;
+ dev->phy.advertising = phy->advertising;
+}
+
+static int emac_mii_bus_read(struct mii_bus *bus, int addr, int regnum)
+{
+ return emac_mdio_read(bus->priv, addr, regnum);
+}
+
+static int emac_mii_bus_write(struct mii_bus *bus, int addr, int regnum, u16 val)
+{
+ emac_mdio_write(bus->priv, addr, regnum, val);
+ return 0;
+}
+
+static int emac_mii_bus_reset(struct mii_bus *bus)
+{
+ struct emac_instance *dev = netdev_priv(bus->priv);
+
+ emac_mii_reset_phy(&dev->phy);
+ return 0;
+}
+
+static int emac_mdio_setup_aneg(struct mii_phy *phy, u32 advertise)
+{
+ struct net_device *ndev = phy->dev;
+ struct emac_instance *dev = netdev_priv(ndev);
+
+ dev->phy.autoneg = AUTONEG_ENABLE;
+ dev->phy.speed = SPEED_1000;
+ dev->phy.duplex = DUPLEX_FULL;
+ dev->phy.advertising = advertise;
+ phy->autoneg = AUTONEG_ENABLE;
+ phy->speed = dev->phy.speed;
+ phy->duplex = dev->phy.duplex;
+ phy->advertising = advertise;
+ return phy_start_aneg(dev->phy_dev);
+}
+
+static int emac_mdio_setup_forced(struct mii_phy *phy, int speed, int fd)
+{
+ struct net_device *ndev = phy->dev;
+ struct emac_instance *dev = netdev_priv(ndev);
+
+ dev->phy.autoneg = AUTONEG_DISABLE;
+ dev->phy.speed = speed;
+ dev->phy.duplex = fd;
+ phy->autoneg = AUTONEG_DISABLE;
+ phy->speed = speed;
+ phy->duplex = fd;
+ return phy_start_aneg(dev->phy_dev);
+}
+
+static int emac_mdio_poll_link(struct mii_phy *phy)
+{
+ struct net_device *ndev = phy->dev;
+ struct emac_instance *dev = netdev_priv(ndev);
+ int res;
+
+ res = phy_read_status(dev->phy_dev);
+ if (res) {
+ dev_err(&dev->ndev->dev, "link update failed (%d).", res);
+ return ethtool_op_get_link(ndev);
+ }
+
+ return dev->phy_dev->link;
+}
+
+static int emac_mdio_read_link(struct mii_phy *phy)
+{
+ struct net_device *ndev = phy->dev;
+ struct emac_instance *dev = netdev_priv(ndev);
+ int res;
+
+ res = phy_read_status(dev->phy_dev);
+ if (res)
+ return res;
+
+ dev->phy.speed = phy->speed;
+ dev->phy.duplex = phy->duplex;
+ dev->phy.pause = phy->pause;
+ dev->phy.asym_pause = phy->asym_pause;
+ return 0;
+}
+
+static int emac_mdio_init_phy(struct mii_phy *phy)
+{
+ struct net_device *ndev = phy->dev;
+ struct emac_instance *dev = netdev_priv(ndev);
+
+ phy_start(dev->phy_dev);
+ dev->phy.autoneg = phy->autoneg;
+ dev->phy.speed = phy->speed;
+ dev->phy.duplex = phy->duplex;
+ dev->phy.advertising = phy->advertising;
+ dev->phy.pause = phy->pause;
+ dev->phy.asym_pause = phy->asym_pause;
+
+ return phy_init_hw(dev->phy_dev);
+}
+
+static const struct mii_phy_ops emac_dt_mdio_phy_ops = {
+ .init = emac_mdio_init_phy,
+ .setup_aneg = emac_mdio_setup_aneg,
+ .setup_forced = emac_mdio_setup_forced,
+ .poll_link = emac_mdio_poll_link,
+ .read_link = emac_mdio_read_link,
+};
+
+static void emac_dt_phy_mdio_cleanup(struct emac_instance *dev)
+{
+ if (dev->mii_bus) {
+ if (dev->mii_bus->state == MDIOBUS_REGISTERED)
+ mdiobus_unregister(dev->mii_bus);
+ mdiobus_free(dev->mii_bus);
+ dev->mii_bus = NULL;
+ }
+ kfree(dev->phy.def);
+ dev->phy.def = NULL;
+}
+
+static int emac_dt_mdio_probe(struct emac_instance *dev)
+{
+ struct device_node *mii_np;
+ int res;
+
+ mii_np = of_get_child_by_name(dev->ofdev->dev.of_node, "mdio");
+ if (!mii_np) {
+ dev_err(&dev->ndev->dev, "no mdio definition found.");
+ return -ENODEV;
+ }
+
+ if (!of_device_is_available(mii_np)) {
+ res = 1;
+ goto err_put_node;
+ }
+
+ dev->mii_bus = mdiobus_alloc();
+ if (!dev->mii_bus) {
+ res = -ENOMEM;
+ goto err_cleanup_mdio;
+ }
+
+ dev->mii_bus->priv = dev->ndev;
+ dev->mii_bus->parent = dev->ndev->dev.parent;
+ dev->mii_bus->name = "emac_mdio";
+ dev->mii_bus->read = &emac_mii_bus_read;
+ dev->mii_bus->write = &emac_mii_bus_write;
+ dev->mii_bus->reset = &emac_mii_bus_reset;
+ snprintf(dev->mii_bus->id, MII_BUS_ID_SIZE, "%s", dev->mii_bus->name);
+
+ res = of_mdiobus_register(dev->mii_bus, mii_np);
+ if (res) {
+ dev_err(&dev->ndev->dev, "cannot register MDIO bus %s (%d)",
+ dev->mii_bus->name, res);
+ goto err_cleanup_mdio;
+ }
+ of_node_put(mii_np);
+ return 0;
+
+ err_cleanup_mdio:
+ emac_dt_phy_mdio_cleanup(dev);
+ err_put_node:
+ of_node_put(mii_np);
+ return res;
+}
+
+static int emac_dt_phy_probe(struct emac_instance *dev,
+ struct device_node *phy_handle)
+{
+ u32 phy_flags = 0;
+ int res;
+
+ res = of_property_read_u32(phy_handle, "phy-flags", &phy_flags);
+ if (res < 0 && res != -EINVAL)
+ return res;
+
+ dev->phy.def = kzalloc(sizeof(*dev->phy.def), GFP_KERNEL);
+ if (!dev->phy.def)
+ return -ENOMEM;
+
+ dev->phy_dev = of_phy_connect(dev->ndev, phy_handle,
+ &emac_adjust_link, phy_flags,
+ PHY_INTERFACE_MODE_RGMII);
+ if (!dev->phy_dev) {
+ dev_err(&dev->ndev->dev, "failed to connect to PHY.");
+ kfree(dev->phy.dev);
+ dev->phy.dev = NULL;
+ return -ENODEV;
+ }
+
+ dev->phy.def->phy_id = dev->phy_dev->drv->phy_id;
+ dev->phy.def->phy_id_mask = dev->phy_dev->drv->phy_id_mask;
+ dev->phy.def->name = dev->phy_dev->drv->name;
+ dev->phy.def->ops = &emac_dt_mdio_phy_ops;
+ dev->phy.features = dev->phy_dev->supported;
+ dev->phy.address = dev->phy_dev->addr;
+ dev->phy.mode = dev->phy_dev->interface;
+ return 0;
+}
+
+static int emac_probe_dt_phy(struct emac_instance *dev)
+{
+ struct device_node *np = dev->ofdev->dev.of_node;
+ struct device_node *phy_handle;
+ int res = 0;
+
+ phy_handle = of_parse_phandle(np, "phy-handle", 0);
+
+ if (phy_handle) {
+ res = emac_dt_mdio_probe(dev);
+ if (res)
+ goto out;
+
+ res = emac_dt_phy_probe(dev, phy_handle);
+ if (res) {
+ emac_dt_phy_mdio_cleanup(dev);
+ goto out;
+ }
+
+ return 1;
+ }
+
+ out:
+ of_node_put(phy_handle);
+ /* if no phy device was specifie in the device tree, then we fallback
+ * to the old emac_phy.c probe code for compatibility reasons.
+ */
+ return res;
+}
+
static int emac_init_phy(struct emac_instance *dev)
{
struct device_node *np = dev->ofdev->dev.of_node;
@@ -2462,6 +2703,18 @@ static int emac_init_phy(struct emac_ins
emac_configure(dev);
+ if (emac_has_feature(dev, EMAC_FTR_HAS_RGMII)) {
+ int res = emac_probe_dt_phy(dev);
+
+ if (res == 1)
+ goto init_phy;
+ if (res < 0)
+ dev_err(&dev->ndev->dev, "failed to attach dt phy (%d).",
+ res);
+
+ /* continue with old code */
+ }
+
if (dev->phy_address != 0xffffffff)
phy_map = ~(1 << dev->phy_address);
@@ -2489,6 +2742,7 @@ static int emac_init_phy(struct emac_ins
return -ENXIO;
}
+ init_phy:
/* Init PHY */
if (dev->phy.def->ops->init)
dev->phy.def->ops->init(&dev->phy);
@@ -2907,6 +3161,8 @@ static int emac_probe(struct platform_de
/* I have a bad feeling about this ... */
err_detach_tah:
+ emac_dt_phy_mdio_cleanup(dev);
+
if (emac_has_feature(dev, EMAC_FTR_HAS_TAH))
tah_detach(dev->tah_dev, dev->tah_port);
err_detach_rgmii:
@@ -2957,6 +3213,11 @@ static int emac_remove(struct platform_d
if (emac_has_feature(dev, EMAC_FTR_HAS_ZMII))
zmii_detach(dev->zmii_dev, dev->zmii_port);
+ if (dev->phy_dev)
+ phy_disconnect(dev->phy_dev);
+
+ emac_dt_phy_mdio_cleanup(dev);
+
busy_phy_map &= ~(1 << dev->phy.address);
DBG(dev, "busy_phy_map now %#x" NL, busy_phy_map);
--- a/drivers/net/ethernet/ibm/emac/core.h
+++ b/drivers/net/ethernet/ibm/emac/core.h
@@ -199,6 +199,10 @@ struct emac_instance {
struct emac_instance *mdio_instance;
struct mutex mdio_lock;
+ /* Device-tree based phy configuration */
+ struct mii_bus *mii_bus;
+ struct phy_device *phy_dev;
+
/* ZMII infos if any */
u32 zmii_ph;
u32 zmii_port;

545
target/linux/apm821xx/patches-4.4/801-usb-xhci-add-firmware-loader-for-uPD720201-and-uPD72.patch
View file

@ -1,545 +0,0 @@
From 419992bae5aaa4e06402e0b7c79fcf7bcb6b4764 Mon Sep 17 00:00:00 2001
From: Christian Lamparter <chunkeey@googlemail.com>
Date: Thu, 2 Jun 2016 00:48:46 +0200
Subject: [PATCH] usb: xhci: add firmware loader for uPD720201 and uPD720202
w/o ROM
This patch adds a firmware loader for the uPD720201K8-711-BAC-A
and uPD720202K8-711-BAA-A variant. Both of these chips are listed
in Renesas' R19UH0078EJ0500 Rev.5.00 "User's Manual: Hardware" as
devices which need the firmware loader on page 2 in order to
work as they "do not support the External ROM".
The "Firmware Download Sequence" is describe in chapter
"7.1 FW Download Interface" R19UH0078EJ0500 Rev.5.00 page 131.
The firmware "K2013080.mem" is available from a USB3.0 Host to
PCIe Adapter (PP2U-E card) "Firmware download" archive. An
alternative version can be sourced from Netgear's WNDR4700 GPL
archives.
The release notes of the PP2U-E's "Firmware Download" ver 2.0.1.3
(2012-06-15) state that the firmware is for the following devices:
- uPD720201 ES 2.0 sample whose revision ID is 2.
- uPD720201 ES 2.1 sample & CS sample & Mass product, ID is 3.
- uPD720202 ES 2.0 sample & CS sample & Mass product, ID is 2.
If someone from Renesas is listening: It would be great, if these
firmwares could be added to linux-firmware.git.
Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
---
drivers/usb/host/xhci-pci.c | 492 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 492 insertions(+)
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -24,6 +24,8 @@
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/acpi.h>
+#include <linux/firmware.h>
+#include <asm/unaligned.h>
#include "xhci.h"
#include "xhci-trace.h"
@@ -218,6 +220,458 @@ static void xhci_pme_acpi_rtd3_enable(st
static void xhci_pme_acpi_rtd3_enable(struct pci_dev *dev) { }
#endif /* CONFIG_ACPI */
+static const struct renesas_fw_entry {
+ const char *firmware_name;
+ u16 device;
+ u8 revision;
+ u16 expected_version;
+} renesas_fw_table[] = {
+ /*
+ * Only the uPD720201K8-711-BAC-A or uPD720202K8-711-BAA-A
+ * are listed in R19UH0078EJ0500 Rev.5.00 as devices which
+ * need the software loader.
+ *
+ * PP2U/ReleaseNote_USB3-201-202-FW.txt:
+ *
+ * Note: This firmware is for the following devices.
+ * - uPD720201 ES 2.0 sample whose revision ID is 2.
+ * - uPD720201 ES 2.1 sample & CS sample & Mass product, ID is 3.
+ * - uPD720202 ES 2.0 sample & CS sample & Mass product, ID is 2.
+ */
+ { "K2013080.mem", 0x0014, 0x02, 0x2013 },
+ { "K2013080.mem", 0x0014, 0x03, 0x2013 },
+ { "K2013080.mem", 0x0015, 0x02, 0x2013 },
+};
+
+static const struct renesas_fw_entry *renesas_needs_fw_dl(struct pci_dev *dev)
+{
+ const struct renesas_fw_entry *entry;
+ size_t i;
+
+ /* This loader will only work with a RENESAS device. */
+ if (!(dev->vendor == PCI_VENDOR_ID_RENESAS))
+ return NULL;
+
+ for (i = 0; i < ARRAY_SIZE(renesas_fw_table); i++) {
+ entry = &renesas_fw_table[i];
+ if (entry->device == dev->device &&
+ entry->revision == dev->revision)
+ return entry;
+ }
+
+ return NULL;
+}
+
+static int renesas_fw_download_image(struct pci_dev *dev,
+ const u32 *fw,
+ size_t step)
+{
+ size_t i;
+ int err;
+ u8 fw_status;
+ bool data0_or_data1;
+
+ /*
+ * The hardware does alternate between two 32-bit pages.
+ * (This is because each row of the firmware is 8 bytes).
+ *
+ * for even steps we use DATA0, for odd steps DATA1.
+ */
+ data0_or_data1 = (step & 1) == 1;
+
+ /* step+1. Read "Set DATAX" and confirm it is cleared. */
+ for (i = 0; i < 10000; i++) {
+ err = pci_read_config_byte(dev, 0xF5, &fw_status);
+ if (err)
+ return pcibios_err_to_errno(err);
+ if (!(fw_status & BIT(data0_or_data1)))
+ break;
+
+ udelay(1);
+ }
+ if (i == 10000)
+ return -ETIMEDOUT;
+
+ /*
+ * step+2. Write FW data to "DATAX".
+ * "LSB is left" => force little endian
+ */
+ err = pci_write_config_dword(dev, data0_or_data1 ? 0xFC : 0xF8,
+ (__force u32) cpu_to_le32(fw[step]));
+ if (err)
+ return pcibios_err_to_errno(err);
+
+ udelay(100);
+
+ /* step+3. Set "Set DATAX". */
+ err = pci_write_config_byte(dev, 0xF5, BIT(data0_or_data1));
+ if (err)
+ return pcibios_err_to_errno(err);
+
+ return 0;
+}
+
+static int renesas_fw_verify(struct pci_dev *dev,
+ const void *fw_data,
+ size_t length)
+{
+ const struct renesas_fw_entry *entry = renesas_needs_fw_dl(dev);
+ u16 fw_version_pointer;
+ u16 fw_version;
+
+ if (!entry)
+ return -EINVAL;
+
+ /*
+ * The Firmware's Data Format is describe in
+ * "6.3 Data Format" R19UH0078EJ0500 Rev.5.00 page 124
+ */
+
+ /* "Each row is 8 bytes". => firmware size must be a multiple of 8. */
+ if (length % 8 != 0) {
+ dev_err(&dev->dev, "firmware size is not a multipe of 8.");
+ return -EINVAL;
+ }
+
+ /*
+ * The bootrom chips of the big brother have sizes up to 64k, let's
+ * assume that's the biggest the firmware can get.
+ */
+ if (length < 0x1000 || length >= 0x10000) {
+ dev_err(&dev->dev, "firmware is size %zd is not (4k - 64k).",
+ length);
+ return -EINVAL;
+ }
+
+ /* The First 2 bytes are fixed value (55aa). "LSB on Left" */
+ if (get_unaligned_le16(fw_data) != 0x55aa) {
+ dev_err(&dev->dev, "no valid firmware header found.");
+ return -EINVAL;
+ }
+
+ /* verify the firmware version position and print it. */
+ fw_version_pointer = get_unaligned_le16(fw_data + 4);
+ if (fw_version_pointer + 2 >= length) {
+ dev_err(&dev->dev, "firmware version pointer is outside of the firmware image.");
+ return -EINVAL;
+ }
+
+ fw_version = get_unaligned_le16(fw_data + fw_version_pointer);
+ dev_dbg(&dev->dev, "got firmware version: %02x.", fw_version);
+
+ if (fw_version != entry->expected_version) {
+ dev_err(&dev->dev, "firmware version mismatch, expected version: %02x.",
+ entry->expected_version);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int renesas_fw_check_running(struct pci_dev *pdev)
+{
+ int err;
+ u8 fw_state;
+
+ /*
+ * Test if the device is actually needing the firmware. As most
+ * BIOSes will initialize the device for us. If the device is
+ * initialized.
+ */
+ err = pci_read_config_byte(pdev, 0xF4, &fw_state);
+ if (err)
+ return pcibios_err_to_errno(err);
+
+ /*
+ * Check if "FW Download Lock" is locked. If it is and the FW is
+ * ready we can simply continue. If the FW is not ready, we have
+ * to give up.
+ */
+ if (fw_state & BIT(1)) {
+ dev_dbg(&pdev->dev, "FW Download Lock is engaged.");
+
+ if (fw_state & BIT(4))
+ return 0;
+
+ dev_err(&pdev->dev, "FW Download Lock is set and FW is not ready. Giving Up.");
+ return -EIO;
+ }
+
+ /*
+ * Check if "FW Download Enable" is set. If someone (us?) tampered
+ * with it and it can't be resetted, we have to give up too... and
+ * ask for a forgiveness and a reboot.
+ */
+ if (fw_state & BIT(0)) {
+ dev_err(&pdev->dev, "FW Download Enable is stale. Giving Up (poweroff/reboot needed).");
+ return -EIO;
+ }
+
+ /* Otherwise, Check the "Result Code" Bits (6:4) and act accordingly */
+ switch ((fw_state & 0x70)) {
+ case 0: /* No result yet */
+ dev_dbg(&pdev->dev, "FW is not ready/loaded yet.");
+
+ /* tell the caller, that this device needs the firmware. */
+ return 1;
+
+ case BIT(4): /* Success, device should be working. */
+ dev_dbg(&pdev->dev, "FW is ready.");
+ return 0;
+
+ case BIT(5): /* Error State */
+ dev_err(&pdev->dev, "hardware is in an error state. Giving up (poweroff/reboot needed).");
+ return -ENODEV;
+
+ default: /* All other states are marked as "Reserved states" */
+ dev_err(&pdev->dev, "hardware is in an invalid state %x. Giving up (poweroff/reboot needed).",
+ (fw_state & 0x70) >> 4);
+ return -EINVAL;
+ }
+}
+
+static int renesas_hw_check_run_stop_busy(struct pci_dev *pdev)
+{
+#if 0
+ u32 val;
+
+ /*
+ * 7.1.3 Note 3: "... must not set 'FW Download Enable' when
+ * 'RUN/STOP' of USBCMD Register is set"
+ */
+ val = readl(hcd->regs + 0x20);
+ if (val & BIT(0)) {
+ dev_err(&pdev->dev, "hardware is busy and can't receive a FW.");
+ return -EBUSY;
+ }
+#endif
+ return 0;
+}
+
+static int renesas_fw_download(struct pci_dev *pdev,
+ const struct firmware *fw, unsigned int retry_counter)
+{
+ const u32 *fw_data = (const u32 *) fw->data;
+ size_t i;
+ int err;
+ u8 fw_status;
+
+ /*
+ * For more information and the big picture: please look at the
+ * "Firmware Download Sequence" in "7.1 FW Download Interface"
+ * of R19UH0078EJ0500 Rev.5.00 page 131
+ */
+ err = renesas_hw_check_run_stop_busy(pdev);
+ if (err)
+ return err;
+
+ /*
+ * 0. Set "FW Download Enable" bit in the
+ * "FW Download Control & Status Register" at 0xF4
+ */
+ err = pci_write_config_byte(pdev, 0xF4, BIT(0));
+ if (err)
+ return pcibios_err_to_errno(err);
+
+ /* 1 - 10 follow one step after the other. */
+ for (i = 0; i < fw->size / 4; i++) {
+ err = renesas_fw_download_image(pdev, fw_data, i);
+ if (err) {
+ dev_err(&pdev->dev, "Firmware Download Step %zd failed at position %zd bytes with (%d).",
+ i, i * 4, err);
+ return err;
+ }
+ }
+
+ /*
+ * This sequence continues until the last data is written to
+ * "DATA0" or "DATA1". Naturally, we wait until "SET DATA0/1"
+ * is cleared by the hardware beforehand.
+ */
+ for (i = 0; i < 10000; i++) {
+ err = pci_read_config_byte(pdev, 0xF5, &fw_status);
+ if (err)
+ return pcibios_err_to_errno(err);
+ if (!(fw_status & (BIT(0) | BIT(1))))
+ break;
+
+ udelay(1);
+ }
+ if (i == 10000)
+ dev_warn(&pdev->dev, "Final Firmware Download step timed out.");
+
+ /*
+ * 11. After finishing writing the last data of FW, the
+ * System Software must clear "FW Download Enable"
+ */
+ err = pci_write_config_byte(pdev, 0xF4, 0);
+ if (err)
+ return pcibios_err_to_errno(err);
+
+ /* 12. Read "Result Code" and confirm it is good. */
+ for (i = 0; i < 10000; i++) {
+ err = pci_read_config_byte(pdev, 0xF4, &fw_status);
+ if (err)
+ return pcibios_err_to_errno(err);
+ if (fw_status & BIT(4))
+ break;
+
+ udelay(1);
+ }
+ if (i == 10000) {
+ /* Timed out / Error - let's see if we can fix this */
+ err = renesas_fw_check_running(pdev);
+ switch (err) {
+ case 0: /*
+ * we shouldn't end up here.
+ * maybe it took a little bit longer.
+ * But all should be well?
+ */
+ break;
+
+ case 1: /* (No result yet? - we can try to retry) */
+ if (retry_counter < 10) {
+ retry_counter++;
+ dev_warn(&pdev->dev, "Retry Firmware download: %d try.",
+ retry_counter);
+ return renesas_fw_download(pdev, fw,
+ retry_counter);
+ }
+ return -ETIMEDOUT;
+
+ default:
+ return err;
+ }
+ }
+ /*
+ * Optional last step: Engage Firmware Lock
+ *
+ * err = pci_write_config_byte(pdev, 0xF4, BIT(2));
+ * if (err)
+ * return pcibios_err_to_errno(err);
+ */
+
+ return 0;
+}
+
+struct renesas_fw_ctx {
+ struct pci_dev *pdev;
+ const struct pci_device_id *id;
+ bool resume;
+};
+
+static int xhci_pci_probe(struct pci_dev *pdev,
+ const struct pci_device_id *id);
+
+static void renesas_fw_callback(const struct firmware *fw,
+ void *context)
+{
+ struct renesas_fw_ctx *ctx = context;
+ struct pci_dev *pdev = ctx->pdev;
+ struct device *parent = pdev->dev.parent;
+ int err = -ENOENT;
+
+ if (fw) {
+ err = renesas_fw_verify(pdev, fw->data, fw->size);
+ if (!err) {
+ err = renesas_fw_download(pdev, fw, 0);
+ release_firmware(fw);
+ if (!err) {
+ if (ctx->resume)
+ return;
+
+ err = xhci_pci_probe(pdev, ctx->id);
+ if (!err) {
+ /* everything worked */
+ devm_kfree(&pdev->dev, ctx);
+ return;
+ }
+
+ /* in case of an error - fall through */
+ } else {
+ dev_err(&pdev->dev, "firmware failed to download (%d).",
+ err);
+ }
+ }
+ } else {
+ dev_err(&pdev->dev, "firmware failed to load (%d).", err);
+ }
+
+ dev_info(&pdev->dev, "Unloading driver");
+
+ if (parent)
+ device_lock(parent);
+
+ device_release_driver(&pdev->dev);
+
+ if (parent)
+ device_unlock(parent);
+
+ pci_dev_put(pdev);
+}
+
+static int renesas_fw_alive_check(struct pci_dev *pdev)
+{
+ const struct renesas_fw_entry *entry;
+ int err;
+
+ /* check if we have a eligible RENESAS' uPD720201/2 w/o FW. */
+ entry = renesas_needs_fw_dl(pdev);
+ if (!entry)
+ return 0;
+
+ err = renesas_fw_check_running(pdev);
+ /* Also go ahead, if the firmware is running */
+ if (err == 0)
+ return 0;
+
+ /* At this point, we can be sure that the FW isn't ready. */
+ return err;
+}
+
+static int renesas_fw_download_to_hw(struct pci_dev *pdev,
+ const struct pci_device_id *id,
+ bool do_resume)
+{
+ const struct renesas_fw_entry *entry;
+ struct renesas_fw_ctx *ctx;
+ int err;
+
+ /* check if we have a eligible RENESAS' uPD720201/2 w/o FW. */
+ entry = renesas_needs_fw_dl(pdev);
+ if (!entry)
+ return 0;
+
+ err = renesas_fw_check_running(pdev);
+ /* Continue ahead, if the firmware is already running. */
+ if (err == 0)
+ return 0;
+
+ if (err != 1)
+ return err;
+
+ ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+ ctx->pdev = pdev;
+ ctx->resume = do_resume;
+ ctx->id = id;
+
+ pci_dev_get(pdev);
+ err = request_firmware_nowait(THIS_MODULE, 1, entry->firmware_name,
+ &pdev->dev, GFP_KERNEL, ctx, renesas_fw_callback);
+ if (err) {
+ pci_dev_put(pdev);
+ return err;
+ }
+
+ /*
+ * The renesas_fw_callback() callback will continue the probe
+ * process, once it aquires the firmware.
+ */
+ return 1;
+}
+
/* called during probe() after chip reset completes */
static int xhci_pci_setup(struct usb_hcd *hcd)
{
@@ -257,6 +711,22 @@ static int xhci_pci_probe(struct pci_dev
struct hc_driver *driver;
struct usb_hcd *hcd;
+ /*
+ * Check if this device is a RENESAS uPD720201/2 device.
+ * Otherwise, we can continue with xhci_pci_probe as usual.
+ */
+ retval = renesas_fw_download_to_hw(dev, id, false);
+ switch (retval) {
+ case 0:
+ break;
+
+ case 1: /* let it load the firmware and recontinue the probe. */
+ return 0;
+
+ default:
+ return retval;
+ };
+
driver = (struct hc_driver *)id->driver_data;
/* Prevent runtime suspending between USB-2 and USB-3 initialization */
@@ -314,6 +784,16 @@ static void xhci_pci_remove(struct pci_d
{
struct xhci_hcd *xhci;
+ if (renesas_fw_alive_check(dev)) {
+ /*
+ * bail out early, if this was a renesas device w/o FW.
+ * Else we might hit the NMI watchdog in xhci_handsake
+ * during xhci_reset as part of the driver's unloading.
+ * which we forced in the renesas_fw_callback().
+ */
+ return;
+ }
+
xhci = hcd_to_xhci(pci_get_drvdata(dev));
xhci->xhc_state |= XHCI_STATE_REMOVING;
if (xhci->shared_hcd) {

54
target/linux/apm821xx/patches-4.4/802-usb-xhci-force-msi-renesas-xhci.patch
View file

@ -1,54 +0,0 @@
From a0dc613140bab907a3d5787a7ae7b0638bf674d0 Mon Sep 17 00:00:00 2001
From: Christian Lamparter <chunkeey@gmail.com>
Date: Thu, 23 Jun 2016 20:28:20 +0200
Subject: [PATCH] usb: xhci: force MSI for uPD720201 and
uPD720202
The APM82181 does not support MSI-X. When probed, it will
produce a noisy warning.
---
drivers/usb/host/pci-quirks.c | 362 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 362 insertions(+)
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -185,7 +185,7 @@ static void xhci_pci_quirks(struct devic
}
if (pdev->vendor == PCI_VENDOR_ID_RENESAS &&
pdev->device == 0x0015)
- xhci->quirks |= XHCI_RESET_ON_RESUME;
+ xhci->quirks |= XHCI_RESET_ON_RESUME | XHCI_FORCE_MSI;
if (pdev->vendor == PCI_VENDOR_ID_VIA)
xhci->quirks |= XHCI_RESET_ON_RESUME;
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -388,10 +388,14 @@ static int xhci_try_enable_msi(struct us
free_irq(hcd->irq, hcd);
hcd->irq = 0;
- ret = xhci_setup_msix(xhci);
- if (ret)
- /* fall back to msi*/
+ if (xhci->quirks & XHCI_FORCE_MSI) {
ret = xhci_setup_msi(xhci);
+ } else {
+ ret = xhci_setup_msix(xhci);
+ if (ret)
+ /* fall back to msi*/
+ ret = xhci_setup_msi(xhci);
+ }
if (!ret)
/* hcd->irq is 0, we have MSI */
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1652,6 +1652,7 @@ struct xhci_hcd {
/* support xHCI 0.96 spec USB2 software LPM */
unsigned sw_lpm_support:1;
/* support xHCI 1.0 spec USB2 hardware LPM */
+#define XHCI_FORCE_MSI (1 << 24)
unsigned hw_lpm_support:1;
/* cached usb2 extened protocol capabilites */
u32 *ext_caps;

48
target/linux/apm821xx/patches-4.4/804-usb-dwc2-add-amcc-usb-otg-405ex.patch
View file

@ -1,48 +0,0 @@
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -115,6 +115,37 @@ static const struct dwc2_core_params par
.hibernation = -1,
};
+static const struct dwc2_core_params params_amcc_dwc_otg = {
+ .otg_cap = DWC2_CAP_PARAM_HNP_SRP_CAPABLE,
+ .otg_ver = -1,
+ .dma_enable = -1,
+ .dma_desc_enable = -1,
+ .speed = -1,
+ .enable_dynamic_fifo = -1,
+ .en_multiple_tx_fifo = -1,
+ .host_rx_fifo_size = -1,
+ .host_nperio_tx_fifo_size = -1,
+ .host_perio_tx_fifo_size = -1,
+ .max_transfer_size = -1,
+ .max_packet_count = -1,
+ .host_channels = -1,
+ .phy_type = -1,
+ .phy_utmi_width = -1,
+ .phy_ulpi_ddr = -1,
+ .phy_ulpi_ext_vbus = -1,
+ .i2c_enable = -1,
+ .ulpi_fs_ls = -1,
+ .host_support_fs_ls_low_power = -1,
+ .host_ls_low_power_phy_clk = -1,
+ .ts_dline = -1,
+ .reload_ctl = -1,
+ .ahbcfg = GAHBCFG_HBSTLEN_INCR16 <<
+ GAHBCFG_HBSTLEN_SHIFT,
+ .uframe_sched = -1,
+ .external_id_pin_ctl = -1,
+ .hibernation = -1,
+};
+
static int __dwc2_lowlevel_hw_enable(struct dwc2_hsotg *hsotg)
{
struct platform_device *pdev = to_platform_device(hsotg->dev);
@@ -307,6 +338,7 @@ static int dwc2_driver_remove(struct pla
}
static const struct of_device_id dwc2_of_match_table[] = {
+ { .compatible = "amcc,usb-otg-405ex", .data = &params_amcc_dwc_otg },
{ .compatible = "brcm,bcm2835-usb", .data = &params_bcm2835 },
{ .compatible = "rockchip,rk3066-usb", .data = &params_rk3066 },
{ .compatible = "snps,dwc2", .data = NULL },

1027
target/linux/apm821xx/patches-4.4/901-hwmon-add-driver-for-Microchip-TC654-TC655-PWM-fan-c.patch
View file

File diff suppressed because it is too large Load diff

292
target/linux/apm821xx/patches-4.4/911-hwmon-lm90-split-set-and-show-temp-as-common-codes.patch
View file

@ -1,292 +0,0 @@
From: Wei Ni <wni@nvidia.com>
Subject: hwmon: lm90: split set and show temp as common codes
Split set and show temp codes as common functions, so we can use
it directly when implement linux thermal framework.
And handle error return value for the lm90_select_remote_channel
and write_tempx, then set_temp8 and set_temp11 could return it
to user-space.
Discussed in:
http://www.spinics.net/lists/linux-tegra/msg14020.html .
Applied with Jean.
BUG=chrome-os-partner:30834
TEST=None
Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Reviewed-on: https://chromium-review.googlesource.com/175114
Tested-by: Wei Ni <wni.nvidia@gmail.com>
Commit-Queue: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
(cherry picked from commit 614a96decdc7a3784128c9f21c5471367e2c627d)
Change-Id: Idbe3948812c6737cba94810cd147c29cc527c3cf
Reviewed-on: https://chromium-review.googlesource.com/212413
Reviewed-by: Olof Johansson <olofj@chromium.org>
Commit-Queue: Olof Johansson <olofj@chromium.org>
---
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -473,20 +473,29 @@ static int lm90_read16(struct i2c_client
* various registers have different meanings as a result of selecting a
* non-default remote channel.
*/
-static inline void lm90_select_remote_channel(struct i2c_client *client,
- struct lm90_data *data,
- int channel)
+static inline int lm90_select_remote_channel(struct i2c_client *client,
+ struct lm90_data *data,
+ int channel)
{
u8 config;
+ int err;
if (data->kind == max6696) {
lm90_read_reg(client, LM90_REG_R_CONFIG1, &config);
config &= ~0x08;
if (channel)
config |= 0x08;
- i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1,
- config);
+ err = i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1,
+ config);
+ if (err < 0) {
+ dev_err(&client->dev,
+ "Failed to select remote channel %d, err %d\n",
+ channel, err);
+ return err;
+ }
}
+
+ return 0;
}
/*
@@ -759,29 +768,34 @@ static u16 temp_to_u16_adt7461(struct lm
* Sysfs stuff
*/
-static ssize_t show_temp8(struct device *dev, struct device_attribute *devattr,
- char *buf)
+static int read_temp8(struct device *dev, int index)
{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct lm90_data *data = lm90_update_device(dev);
int temp;
if (data->kind == adt7461 || data->kind == tmp451)
- temp = temp_from_u8_adt7461(data, data->temp8[attr->index]);
+ temp = temp_from_u8_adt7461(data, data->temp8[index]);
else if (data->kind == max6646)
- temp = temp_from_u8(data->temp8[attr->index]);
+ temp = temp_from_u8(data->temp8[index]);
else
- temp = temp_from_s8(data->temp8[attr->index]);
+ temp = temp_from_s8(data->temp8[index]);
/* +16 degrees offset for temp2 for the LM99 */
- if (data->kind == lm99 && attr->index == 3)
+ if (data->kind == lm99 && index == 3)
temp += 16000;
- return sprintf(buf, "%d\n", temp);
+ return temp;
}
-static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr,
- const char *buf, size_t count)
+static ssize_t show_temp8(struct device *dev, struct device_attribute *devattr,
+ char *buf)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+
+ return sprintf(buf, "%d\n", read_temp8(dev, attr->index));
+}
+
+static int write_temp8(struct device *dev, int index, long val)
{
static const u8 reg[TEMP8_REG_NUM] = {
LM90_REG_W_LOCAL_LOW,
@@ -794,60 +808,79 @@ static ssize_t set_temp8(struct device *
MAX6659_REG_W_REMOTE_EMERG,
};
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct lm90_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
- int nr = attr->index;
- long val;
int err;
- err = kstrtol(buf, 10, &val);
- if (err < 0)
- return err;
-
/* +16 degrees offset for temp2 for the LM99 */
- if (data->kind == lm99 && attr->index == 3)
+ if (data->kind == lm99 && index == 3)
val -= 16000;
mutex_lock(&data->update_lock);
if (data->kind == adt7461 || data->kind == tmp451)
- data->temp8[nr] = temp_to_u8_adt7461(data, val);
+ data->temp8[index] = temp_to_u8_adt7461(data, val);
else if (data->kind == max6646)
- data->temp8[nr] = temp_to_u8(val);
+ data->temp8[index] = temp_to_u8(val);
else
- data->temp8[nr] = temp_to_s8(val);
-
- lm90_select_remote_channel(client, data, nr >= 6);
- i2c_smbus_write_byte_data(client, reg[nr], data->temp8[nr]);
- lm90_select_remote_channel(client, data, 0);
+ data->temp8[index] = temp_to_s8(val);
+ if ((err = lm90_select_remote_channel(client, data, index >= 6)) ||
+ (err = i2c_smbus_write_byte_data(client, reg[index],
+ data->temp8[index])) ||
+ (err = lm90_select_remote_channel(client, data, 0)))
+ dev_err(dev, "write_temp8 failed, err %d\n", err);
mutex_unlock(&data->update_lock);
+
+ return err;
+}
+
+static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ int index = attr->index;
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err < 0)
+ return err;
+
+ err = write_temp8(dev, index, val);
+ if (err < 0)
+ return err;
+
return count;
}
-static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr,
- char *buf)
+static int read_temp11(struct device *dev, int index)
{
- struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
struct lm90_data *data = lm90_update_device(dev);
int temp;
if (data->kind == adt7461 || data->kind == tmp451)
- temp = temp_from_u16_adt7461(data, data->temp11[attr->index]);
+ temp = temp_from_u16_adt7461(data, data->temp11[index]);
else if (data->kind == max6646)
- temp = temp_from_u16(data->temp11[attr->index]);
+ temp = temp_from_u16(data->temp11[index]);
else
- temp = temp_from_s16(data->temp11[attr->index]);
+ temp = temp_from_s16(data->temp11[index]);
/* +16 degrees offset for temp2 for the LM99 */
- if (data->kind == lm99 && attr->index <= 2)
+ if (data->kind == lm99 && index <= 2)
temp += 16000;
- return sprintf(buf, "%d\n", temp);
+ return temp;
}
-static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr,
- const char *buf, size_t count)
+static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr,
+ char *buf)
+{
+ struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+
+ return sprintf(buf, "%d\n", read_temp11(dev, attr->index));
+}
+
+static int write_temp11(struct device *dev, int nr, int index, long val)
{
struct {
u8 high;
@@ -861,18 +894,10 @@ static ssize_t set_temp11(struct device
{ LM90_REG_W_REMOTE_HIGHH, LM90_REG_W_REMOTE_HIGHL, 1 }
};
- struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
struct lm90_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
- int nr = attr->nr;
- int index = attr->index;
- long val;
int err;
- err = kstrtol(buf, 10, &val);
- if (err < 0)
- return err;
-
/* +16 degrees offset for temp2 for the LM99 */
if (data->kind == lm99 && index <= 2)
val -= 16000;
@@ -887,15 +912,50 @@ static ssize_t set_temp11(struct device
else
data->temp11[index] = temp_to_s8(val) << 8;
- lm90_select_remote_channel(client, data, reg[nr].channel);
- i2c_smbus_write_byte_data(client, reg[nr].high,
- data->temp11[index] >> 8);
- if (data->flags & LM90_HAVE_REM_LIMIT_EXT)
- i2c_smbus_write_byte_data(client, reg[nr].low,
- data->temp11[index] & 0xff);
- lm90_select_remote_channel(client, data, 0);
+ err = lm90_select_remote_channel(client, data, reg[nr].channel);
+ if (err)
+ goto error;
+
+ err = i2c_smbus_write_byte_data(client, reg[nr].high,
+ data->temp11[index] >> 8);
+ if (err)
+ goto error;
+
+ if (data->flags & LM90_HAVE_REM_LIMIT_EXT) {
+ err = i2c_smbus_write_byte_data(client, reg[nr].low,
+ data->temp11[index] & 0xff);
+ if (err)
+ goto error;
+ }
+
+ err = lm90_select_remote_channel(client, data, 0);
+
+error:
+ if (err)
+ dev_err(dev, "write_temp11 failed, err %d\n", err);
mutex_unlock(&data->update_lock);
+
+ return err;
+}
+
+static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+ int nr = attr->nr;
+ int index = attr->index;
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err < 0)
+ return err;
+
+ err = write_temp11(dev, nr, index, val);
+ if (err < 0)
+ return err;
+
return count;
}

149
target/linux/apm821xx/patches-4.4/912-hwmon-lm90-expose-to-thermal-fw-via-DT.patch
View file

@ -1,149 +0,0 @@
From: Wei Ni <wni@nvidia.com>
Subject: hwmon: lm90: expose to thermal fw via DT nodes
This patch adds to lm90 temperature sensor the possibility
to expose itself as thermal zone device, registered on the
thermal framework.
The thermal zone is built only if a device tree node
describing a thermal zone for this sensor is present
inside the lm90 DT node. Otherwise, the driver behavior
will be the same.
Discussed in:
http://www.gossamer-threads.com/lists/linux/kernel/1992853
BUG=chrome-os-partner:30834
TEST=Verified. Build and boot up system.
Signed-off-by: Wei Ni <wni@nvidia.com>
Reviewed-on: https://chromium-review.googlesource.com/181447
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Tested-by: Dylan Reid <dgreid@chromium.org>
Commit-Queue: Dylan Reid <dgreid@chromium.org>
Change-Id: Id356b94d7e8f4b49ec15e46b17a1fa2ff0cbf8cf
Reviewed-on: https://chromium-review.googlesource.com/212414
Tested-by: Wei Ni <wni.nvidia@gmail.com>
Reviewed-by: Olof Johansson <olofj@chromium.org>
Commit-Queue: Olof Johansson <olofj@chromium.org>
---
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -96,6 +96,8 @@
#include <linux/sysfs.h>
#include <linux/interrupt.h>
#include <linux/regulator/consumer.h>
+#include <linux/of.h>
+#include <linux/thermal.h>
/*
* Addresses to scan
@@ -119,6 +121,13 @@ static const unsigned short normal_i2c[]
enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
max6646, w83l771, max6696, sa56004, g781, tmp451 };
+enum sensor_id {
+ LOCAL = 0,
+ REMOTE,
+ REMOTE2,
+ SENSOR_ID_END,
+};
+
/*
* The LM90 registers
*/
@@ -368,6 +377,7 @@ struct lm90_data {
struct i2c_client *client;
struct device *hwmon_dev;
const struct attribute_group *groups[6];
+ struct thermal_zone_device *tz[SENSOR_ID_END];
struct mutex update_lock;
struct regulator *regulator;
char valid; /* zero until following fields are valid */
@@ -880,6 +890,24 @@ static ssize_t show_temp11(struct device
return sprintf(buf, "%d\n", read_temp11(dev, attr->index));
}
+static int lm90_read_local_temp(void *dev, int *temp)
+{
+ *temp = read_temp11(dev, 4);
+ return 0;
+}
+
+static int lm90_read_remote_temp(void *dev, int *temp)
+{
+ *temp = read_temp11(dev, 0);
+ return 0;
+}
+
+static int lm90_read_remote2_temp(void *dev, int *temp)
+{
+ *temp = read_temp11(dev, 5);
+ return 0;
+}
+
static int write_temp11(struct device *dev, int nr, int index, long val)
{
struct {
@@ -1210,6 +1238,18 @@ static const struct attribute_group lm90
.attrs = lm90_temp3_attributes,
};
+static const struct thermal_zone_of_device_ops local_temp_sensor = {
+ .get_temp = lm90_read_local_temp,
+};
+
+static const struct thermal_zone_of_device_ops remote_temp_sensor = {
+ .get_temp = lm90_read_remote_temp,
+};
+
+static const struct thermal_zone_of_device_ops remote2_temp_sensor = {
+ .get_temp = lm90_read_remote2_temp,
+};
+
/* pec used for ADM1032 only */
static ssize_t show_pec(struct device *dev, struct device_attribute *dummy,
char *buf)
@@ -1659,6 +1699,30 @@ static int lm90_probe(struct i2c_client
}
}
+ data->tz[LOCAL] = thermal_zone_of_sensor_register(&client->dev,
+ LOCAL,
+ &client->dev,
+ &local_temp_sensor);
+ if (IS_ERR(data->tz[LOCAL]))
+ data->tz[LOCAL] = NULL;
+
+ data->tz[REMOTE] = thermal_zone_of_sensor_register(&client->dev,
+ REMOTE,
+ &client->dev,
+ &remote_temp_sensor);
+ if (IS_ERR(data->tz[REMOTE]))
+ data->tz[REMOTE] = NULL;
+
+ if (data->flags & LM90_HAVE_TEMP3) {
+ data->tz[REMOTE2] = thermal_zone_of_sensor_register(
+ &client->dev,
+ REMOTE2,
+ &client->dev,
+ &remote2_temp_sensor);
+ if (IS_ERR(data->tz[REMOTE2]))
+ data->tz[REMOTE2] = NULL;
+ }
+
return 0;
exit_unregister:
@@ -1674,8 +1738,11 @@ exit_restore:
static int lm90_remove(struct i2c_client *client)
{
+ int i;
struct lm90_data *data = i2c_get_clientdata(client);
+ for (i = 0; i < SENSOR_ID_END; i++)
+ thermal_zone_of_sensor_unregister(&client->dev, data->tz[i]);
hwmon_device_unregister(data->hwmon_dev);
device_remove_file(&client->dev, &dev_attr_pec);
lm90_restore_conf(client, data);