openwrtv3/target/linux/layerscape/patches-4.4/3039-arch-arm-add-ARM-specific-fucntions-required-for-ehc.patch
Yutang Jiang c6c731fe31 layerscape: add 64b/32b target for ls1043ardb device
Add support for NXP layerscape ls1043ardb 64b/32b Dev board.

LS1043a is an SoC with 4x64-bit up to 1.6 GHz ARMv8 A53 cores.
ls1043ardb support features as: 2GB DDR4, 128MB NOR/512MB NAND, USB3.0, eSDHC,
I2C, GPIO, PCIe/Mini-PCIe, 6x1G/1x10G network port, etc.

64b/32b ls1043ardb target is using 4.4 kernel, and rcw/u-boot/fman images from
NXP QorIQ SDK release.

All of 4.4 kernel patches porting from SDK release or upstream.

QorIQ SDK ISOs can be downloaded from this location:
http://www.nxp.com/products/software-and-tools/run-time-software/linux-sdk/linux-sdk-for-qoriq-processors:SDKLINUX

Signed-off-by: Yutang Jiang <yutang.jiang@nxp.com>
2016-10-31 17:00:10 +01:00

79 lines
3.3 KiB
Diff

From 03eea243622d85d59653ee076ce43ac0653dc51d Mon Sep 17 00:00:00 2001
From: Zhao Qiang <B45475@freescale.com>
Date: Fri, 10 Oct 2014 10:38:48 +0800
Subject: [PATCH 39/70] arch: arm: add ARM specific fucntions required for
ehci fsl driver
Add below functions for ARM platform which are used by ehci fsl driver:
1. spin_event_timeout function
2. set/clear bits functions
Signed-off-by: Zhao Qiang <B45475@freescale.com>
Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>
---
arch/arm/include/asm/delay.h | 16 ++++++++++++++++
arch/arm/include/asm/io.h | 28 ++++++++++++++++++++++++++++
2 files changed, 44 insertions(+)
--- a/arch/arm/include/asm/delay.h
+++ b/arch/arm/include/asm/delay.h
@@ -57,6 +57,22 @@ extern void __bad_udelay(void);
__const_udelay((n) * UDELAY_MULT)) : \
__udelay(n))
+#define spin_event_timeout(condition, timeout, delay) \
+({ \
+ typeof(condition) __ret; \
+ int i = 0; \
+ while (!(__ret = (condition)) && (i++ < timeout)) { \
+ if (delay) \
+ udelay(delay); \
+ else \
+ cpu_relax(); \
+ udelay(1); \
+ } \
+ if (!__ret) \
+ __ret = (condition); \
+ __ret; \
+})
+
/* Loop-based definitions for assembly code. */
extern void __loop_delay(unsigned long loops);
extern void __loop_udelay(unsigned long usecs);
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -221,6 +221,34 @@ extern int pci_ioremap_io(unsigned int o
#endif
#endif
+/* access ports */
+#define setbits32(_addr, _v) iowrite32be(ioread32be(_addr) | (_v), (_addr))
+#define clrbits32(_addr, _v) iowrite32be(ioread32be(_addr) & ~(_v), (_addr))
+
+#define setbits16(_addr, _v) iowrite16be(ioread16be(_addr) | (_v), (_addr))
+#define clrbits16(_addr, _v) iowrite16be(ioread16be(_addr) & ~(_v), (_addr))
+
+#define setbits8(_addr, _v) iowrite8(ioread8(_addr) | (_v), (_addr))
+#define clrbits8(_addr, _v) iowrite8(ioread8(_addr) & ~(_v), (_addr))
+
+/* Clear and set bits in one shot. These macros can be used to clear and
+ * set multiple bits in a register using a single read-modify-write. These
+ * macros can also be used to set a multiple-bit bit pattern using a mask,
+ * by specifying the mask in the 'clear' parameter and the new bit pattern
+ * in the 'set' parameter.
+ */
+
+#define clrsetbits_be32(addr, clear, set) \
+ iowrite32be((ioread32be(addr) & ~(clear)) | (set), (addr))
+#define clrsetbits_le32(addr, clear, set) \
+ iowrite32le((ioread32le(addr) & ~(clear)) | (set), (addr))
+#define clrsetbits_be16(addr, clear, set) \
+ iowrite16be((ioread16be(addr) & ~(clear)) | (set), (addr))
+#define clrsetbits_le16(addr, clear, set) \
+ iowrite16le((ioread16le(addr) & ~(clear)) | (set), (addr))
+#define clrsetbits_8(addr, clear, set) \
+ iowrite8((ioread8(addr) & ~(clear)) | (set), (addr))
+
/*
* IO port access primitives
* -------------------------