ep93xx: add support for kernel 3.14

This is compile tested only, please run test and report back. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> SVN-Revision: 43795
2014-12-29 13:55:59 +00:00 · 2014-12-29 13:55:59 +00:00 · 2ea959650e
commit 2ea959650e
parent 469e8adbac
4 changed files with 1541 additions and 0 deletions
--- a/target/linux/ep93xx/config-3.14
+++ b/target/linux/ep93xx/config-3.14
@ -0,0 +1,221 @@
+CONFIG_ALIGNMENT_TRAP=y
+CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y
+CONFIG_ARCH_EP93XX=y
+CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
+CONFIG_ARCH_HAS_HOLES_MEMORYMODEL=y
+CONFIG_ARCH_HAVE_CUSTOM_GPIO_H=y
+CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
+# CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set
+CONFIG_ARCH_NR_GPIO=0
+CONFIG_ARCH_REQUIRE_GPIOLIB=y
+# CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
+# CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
+CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ARCH_USES_GETTIMEOFFSET=y
+CONFIG_ARCH_USE_BUILTIN_BSWAP=y
+CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
+CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
+CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
+CONFIG_ARM=y
+CONFIG_ARM_AMBA=y
+# CONFIG_ARM_CPU_SUSPEND is not set
+CONFIG_ARM_L1_CACHE_SHIFT=5
+CONFIG_ARM_NR_BANKS=16
+CONFIG_ARM_PATCH_PHYS_VIRT=y
+# CONFIG_ARM_SP805_WATCHDOG is not set
+CONFIG_ARM_THUMB=y
+CONFIG_ARM_VIC=y
+CONFIG_ARM_VIC_NR=2
+CONFIG_ATAGS=y
+# CONFIG_BLK_DEV_INITRD is not set
+# CONFIG_CACHE_L2X0 is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_CLKDEV_LOOKUP=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_CMDLINE="console=ttyAM0,57600 init=/etc/preinit"
+CONFIG_CMDLINE_FROM_BOOTLOADER=y
+CONFIG_CONSOLE_TRANSLATIONS=y
+CONFIG_CPU_32v4T=y
+CONFIG_CPU_ABRT_EV4T=y
+CONFIG_CPU_ARM920T=y
+CONFIG_CPU_CACHE_V4WT=y
+CONFIG_CPU_CACHE_VIVT=y
+CONFIG_CPU_COPY_V4WB=y
+CONFIG_CPU_CP15=y
+CONFIG_CPU_CP15_MMU=y
+# CONFIG_CPU_DCACHE_WRITETHROUGH is not set
+# CONFIG_CPU_ICACHE_DISABLE is not set
+CONFIG_CPU_PABRT_LEGACY=y
+CONFIG_CPU_TLB_V4WBI=y
+CONFIG_CPU_USE_DOMAINS=y
+CONFIG_CRC7=y
+CONFIG_CRC_ITU_T=y
+CONFIG_CRUNCH=y
+CONFIG_DEBUG_LL_INCLUDE="debug/pl01x.S"
+# CONFIG_DEBUG_UART_8250 is not set
+CONFIG_DEBUG_UART_PHYS=0x808c0000
+CONFIG_DEBUG_UART_PL01X=y
+CONFIG_DEBUG_UART_VIRT=0xfedc0000
+# CONFIG_DEBUG_USER is not set
+CONFIG_DUMMY_CONSOLE=y
+# CONFIG_ENABLE_WARN_DEPRECATED is not set
+CONFIG_EP93XX_ETH=y
+CONFIG_EP93XX_SDCE0_PHYS_OFFSET=y
+# CONFIG_EP93XX_SDCE1_PHYS_OFFSET is not set
+# CONFIG_EP93XX_SDCE2_PHYS_OFFSET is not set
+# CONFIG_EP93XX_SDCE3_ASYNC_PHYS_OFFSET is not set
+# CONFIG_EP93XX_SDCE3_SYNC_PHYS_OFFSET is not set
+CONFIG_EP93XX_SOC_COMMON=y
+CONFIG_EP93XX_WATCHDOG=y
+CONFIG_FRAME_POINTER=y
+CONFIG_GENERIC_ATOMIC64=y
+CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_IDLE_POLL_SETUP=y
+CONFIG_GENERIC_IO=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_SCHED_CLOCK=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GENERIC_STRNCPY_FROM_USER=y
+CONFIG_GENERIC_STRNLEN_USER=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_DEVRES=y
+CONFIG_GPIO_EP93XX=y
+CONFIG_GPIO_GENERIC=y
+# CONFIG_HAMRADIO is not set
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
+CONFIG_HAVE_ARCH_JUMP_LABEL=y
+CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_HAVE_ARCH_PFN_VALID=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_CC_STACKPROTECTOR=y
+CONFIG_HAVE_CLK=y
+CONFIG_HAVE_CONTEXT_TRACKING=y
+CONFIG_HAVE_C_RECORDMCOUNT=y
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
+CONFIG_HAVE_DMA_API_DEBUG=y
+CONFIG_HAVE_DMA_ATTRS=y
+CONFIG_HAVE_DMA_CONTIGUOUS=y
+CONFIG_HAVE_DYNAMIC_FTRACE=y
+CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
+CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
+CONFIG_HAVE_FUNCTION_TRACER=y
+CONFIG_HAVE_GENERIC_DMA_COHERENT=y
+CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
+CONFIG_HAVE_KERNEL_GZIP=y
+CONFIG_HAVE_KERNEL_LZ4=y
+CONFIG_HAVE_KERNEL_LZMA=y
+CONFIG_HAVE_KERNEL_LZO=y
+CONFIG_HAVE_KERNEL_XZ=y
+CONFIG_HAVE_LATENCYTOP_SUPPORT=y
+CONFIG_HAVE_MEMBLOCK=y
+CONFIG_HAVE_NET_DSA=y
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HAVE_PERF_REGS=y
+CONFIG_HAVE_PERF_USER_STACK_DUMP=y
+CONFIG_HAVE_PROC_CPU=y
+CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
+CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
+CONFIG_HAVE_UID16=y
+CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
+CONFIG_HW_CONSOLE=y
+CONFIG_HZ_FIXED=0
+CONFIG_I2C=y
+CONFIG_I2C_ALGOBIT=y
+CONFIG_I2C_BOARDINFO=y
+CONFIG_I2C_CHARDEV=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_INPUT=y
+# CONFIG_INPUT_MISC is not set
+CONFIG_INPUT_TOUCHSCREEN=y
+CONFIG_IOMMU_HELPER=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_IRQ_WORK=y
+CONFIG_KTIME_SCALAR=y
+CONFIG_LEDS_GPIO_REGISTER=y
+CONFIG_LOG_BUF_SHIFT=16
+# CONFIG_MACH_EDB9302A is not set
+# CONFIG_MACH_EDB9307A is not set
+# CONFIG_MACH_EDB9315A is not set
+CONFIG_MACH_SIM_ONE=y
+# CONFIG_MACH_SNAPPER_CL15 is not set
+# CONFIG_MACH_VISION_EP9307 is not set
+CONFIG_MMC=y
+CONFIG_MMC_BLOCK=y
+CONFIG_MMC_SPI=y
+CONFIG_MODULES_USE_ELF_REL=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_MTD_CFI_ADV_OPTIONS=y
+# CONFIG_MTD_CFI_GEOMETRY is not set
+CONFIG_MTD_CFI_STAA=y
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+CONFIG_MTD_PHYSMAP=y
+CONFIG_MTD_RAM=y
+CONFIG_MULTI_IRQ_HANDLER=y
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEED_KUSER_HELPERS=y
+CONFIG_NEED_MACH_MEMORY_H=y
+CONFIG_NEED_PER_CPU_KM=y
+CONFIG_NO_BOOTMEM=y
+CONFIG_OLD_SIGACTION=y
+CONFIG_OLD_SIGSUSPEND3=y
+CONFIG_PAGEFLAGS_EXTENDED=y
+CONFIG_PAGE_OFFSET=0xC0000000
+# CONFIG_PCI_SYSCALL is not set
+CONFIG_PERF_USE_VMALLOC=y
+# CONFIG_PREEMPT_RCU is not set
+# CONFIG_RCU_STALL_COMMON is not set
+# CONFIG_SCHED_HRTICK is not set
+# CONFIG_SCSI_DMA is not set
+# CONFIG_SERIAL_8250 is not set
+CONFIG_SERIAL_AMBA_PL010=y
+CONFIG_SERIAL_AMBA_PL010_CONSOLE=y
+# CONFIG_SERIAL_AMBA_PL011 is not set
+CONFIG_SOC_BUS=y
+CONFIG_SPI=y
+CONFIG_SPI_BITBANG=y
+CONFIG_SPI_EP93XX=y
+CONFIG_SPI_MASTER=y
+CONFIG_SPLIT_PTLOCK_CPUS=999999
+CONFIG_SWIOTLB=y
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TICK_CPU_ACCOUNTING=y
+# CONFIG_TOUCHSCREEN_ATMEL_MXT is not set
+# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set
+# CONFIG_TOUCHSCREEN_BU21013 is not set
+# CONFIG_TOUCHSCREEN_CYTTSP4_CORE is not set
+# CONFIG_TOUCHSCREEN_DYNAPRO is not set
+# CONFIG_TOUCHSCREEN_EP93XX is not set
+# CONFIG_TOUCHSCREEN_HAMPSHIRE is not set
+# CONFIG_TOUCHSCREEN_MAX11801 is not set
+# CONFIG_TOUCHSCREEN_PIXCIR is not set
+# CONFIG_TOUCHSCREEN_ST1232 is not set
+# CONFIG_TOUCHSCREEN_TSC2005 is not set
+# CONFIG_TOUCHSCREEN_TSC_SERIO is not set
+CONFIG_UID16=y
+CONFIG_UNCOMPRESS_INCLUDE="mach/uncompress.h"
+CONFIG_USB_SUPPORT=y
+CONFIG_VECTORS_BASE=0xffff0000
+CONFIG_VIDEO_OUTPUT_CONTROL=y
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+# CONFIG_VT_HW_CONSOLE_BINDING is not set
+CONFIG_WATCHDOG_CORE=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_BCJ=y
+CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_ZBOOT_ROM_TEXT=0x0
+CONFIG_ZONE_DMA_FLAG=0
--- a/target/linux/ep93xx/patches-3.14/001-ep93xx_cpuinfo.patch
+++ b/target/linux/ep93xx/patches-3.14/001-ep93xx_cpuinfo.patch
@ -0,0 +1,70 @@
+This patch puts the EP93xx chip revision and unique ID into /proc/cpuinfo.
+This is necessary to be able to set a unique MAC address for DHCP purposes
+by adding a line to /etc/network/interfaces:
+
+# Generate a unique locally-assigned MAC address from the CPU serial number
+pre-up ifconfig eth0 hw ether `sed -n 's/^Serial.* 000000/02/p' /proc/cpuinfo`
+
+It uses the chip revision reading code in the ep93xx-chip-revision patch.
+
+Really, this is wrong, since /proc/cpuinfo should report the revision and
+serial number of the ARM920T processor, while these are the rev and serial
+of the EP93xx SoC. In a future kernel (>2.6.34) there may be a new file
+/proc/socinfo for this information.
+
+	-martinwguy 14 May 2010
+
+--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
+@@ -57,6 +57,12 @@
+ #include <asm/memblock.h>
+ #include <asm/virt.h>
+ 
+#if defined(CONFIG_ARCH_EP93XX)
+#include <asm/io.h>
+#include <mach/platform.h>
+#include <mach/ep93xx-regs.h>
+#endif
+
+ #include "atags.h"
+ 
+ 
+@@ -1052,9 +1058,16 @@ static int c_show(struct seq_file *m, vo
+ 	}
+ 
+ 	seq_printf(m, "Hardware\t: %s\n", machine_name);
+#if defined(CONFIG_ARCH_EP93XX)
+	seq_printf(m, "Revision\t: %04x\n",
+	     ep93xx_chip_revision());
+	seq_printf(m, "Serial\t\t: %016x\n",
+	     *((unsigned int *)EP93XX_SECURITY_UNIQID));
+#else
+ 	seq_printf(m, "Revision\t: %04x\n", system_rev);
+ 	seq_printf(m, "Serial\t\t: %08x%08x\n",
+ 		   system_serial_high, system_serial_low);
+#endif
+ 
+ 	return 0;
+ }
+--- a/arch/arm/mach-ep93xx/soc.h
+++ b/arch/arm/mach-ep93xx/soc.h
+@@ -82,8 +82,6 @@
+ #define EP93XX_I2S_PHYS_BASE		EP93XX_APB_PHYS(0x00020000)
+ #define EP93XX_I2S_BASE			EP93XX_APB_IOMEM(0x00020000)
+ 
+-#define EP93XX_SECURITY_BASE		EP93XX_APB_IOMEM(0x00030000)
+-
+ #define EP93XX_AAC_PHYS_BASE		EP93XX_APB_PHYS(0x00080000)
+ #define EP93XX_AAC_BASE			EP93XX_APB_IOMEM(0x00080000)
+ 
+--- a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
+++ b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
+@@ -38,4 +38,8 @@
+ #define EP93XX_UART3_PHYS_BASE		EP93XX_APB_PHYS(0x000e0000)
+ #define EP93XX_UART3_BASE		EP93XX_APB_IOMEM(0x000e0000)
+ 
+#define EP93XX_SECURITY_BASE		EP93XX_APB_IOMEM(0x00030000)
+#define EP93XX_SECURITY_REG(x)		(EP93XX_SECURITY_BASE + (x))
+#define EP93XX_SECURITY_UNIQID		EP93XX_SECURITY_REG(0x2440)
+
+ #endif
--- a/target/linux/ep93xx/patches-3.14/003-ep93xx_touchscreen.patch
+++ b/target/linux/ep93xx/patches-3.14/003-ep93xx_touchscreen.patch
--- a/target/linux/ep93xx/patches-3.14/004-simone_add_mmc_spi.patch
+++ b/target/linux/ep93xx/patches-3.14/004-simone_add_mmc_spi.patch
@ -0,0 +1,178 @@
+This enables the mmc-over-spi driver for the Sim.One board, based on Mika's
+patch, which used a GPIO for chip select in stead of the default SFRMOUT pin.
+I've modified it to use the usual SFRMOUT; if you've modified your Sim.One
+board to use a GPIO instead, uncomment and modify
+// #define MMC_CHIP_SELECT_GPIO EP93XX_GPIO_LINE_EGPIO15
+in the source file.
+   -martinwguy, 14 May 2010
+
+From: Mika Westerberg <mika.westerberg@iki.fi>
+Date: Wed, 28 Apr 2010 08:42:46 +0300
+Subject: [PATCH] ep93xx: simone: added board specific SPI support for MMC/SD cards
+
+This includes setting up EGPIOs 0 and 9 for card detection and chip select
+respectively.
+
+--- a/arch/arm/mach-ep93xx/simone.c
+++ b/arch/arm/mach-ep93xx/simone.c
+@@ -20,10 +20,15 @@
+ #include <linux/platform_device.h>
+ #include <linux/i2c.h>
+ #include <linux/i2c-gpio.h>
+#include <linux/gpio.h>
+#include <linux/mmc/host.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/mmc_spi.h>
+ 
+ #include <mach/hardware.h>
+ #include <linux/platform_data/video-ep93xx.h>
+ #include <mach/gpio-ep93xx.h>
+#include <linux/platform_data/spi-ep93xx.h>
+ 
+ #include <asm/mach-types.h>
+ #include <asm/mach/arch.h>
+@@ -40,6 +45,135 @@ static struct ep93xxfb_mach_info __initd
+ 	.flags		= EP93XXFB_USE_SDCSN0 | EP93XXFB_PCLK_FALLING,
+ };
+ 
+/*
+ * GPIO lines used for MMC card detection.
+ */
+#define MMC_CARD_DETECT_GPIO EP93XX_GPIO_LINE_EGPIO0
+
+/*
+ * If you have hacked your Sim.One to use a GPIO as SD card chip select
+ * (SD pin 1), uncomment the following line.
+ * The example, EGPIO15, is on TP17 near the CPU.
+ */
+// #define MMC_CHIP_SELECT_GPIO EP93XX_GPIO_LINE_EGPIO15
+
+/*
+ * MMC SPI chip select GPIO handling. If you are using SFRMOUT (SFRM1) signal,
+ * you can leave these empty and pass NULL as .controller_data.
+ */
+
+#ifdef MMC_CHIP_SELECT_GPIO
+static int simone_mmc_spi_setup(struct spi_device *spi)
+{
+	unsigned int gpio = MMC_CHIP_SELECT_GPIO;
+	int err;
+
+	err = gpio_request(gpio, spi->modalias);
+	if (err)
+		return err;
+
+	err = gpio_direction_output(gpio, 1);
+	if (err) {
+		gpio_free(gpio);
+		return err;
+	}
+
+	return 0;
+}
+
+static void simone_mmc_spi_cleanup(struct spi_device *spi)
+{
+	unsigned int gpio = MMC_CHIP_SELECT_GPIO;
+
+	gpio_set_value(gpio, 1);
+	gpio_direction_input(gpio);
+	gpio_free(gpio);
+}
+
+static void simone_mmc_spi_cs_control(struct spi_device *spi, int value)
+{
+	gpio_set_value(MMC_CHIP_SELECT_GPIO, value);
+}
+
+static struct ep93xx_spi_chip_ops simone_mmc_spi_ops = {
+	.setup		= simone_mmc_spi_setup,
+	.cleanup	= simone_mmc_spi_cleanup,
+	.cs_control	= simone_mmc_spi_cs_control,
+};
+#endif
+
+/*
+ * MMC card detection GPIO setup.
+ */
+static int simone_mmc_spi_init(struct device *dev,
+	irqreturn_t (*irq_handler)(int, void *), void *mmc)
+{
+	unsigned int gpio = MMC_CARD_DETECT_GPIO;
+	int irq, err;
+
+	err = gpio_request(gpio, dev_name(dev));
+	if (err)
+		return err;
+
+	err = gpio_direction_input(gpio);
+	if (err)
+		goto fail;
+
+	irq = gpio_to_irq(gpio);
+	if (irq < 0)
+		goto fail;
+
+	err = request_irq(irq, irq_handler, IRQF_TRIGGER_FALLING,
+				"MMC card detect", mmc);
+	if (err)
+		goto fail;
+
+	printk(KERN_INFO "%s: using irq %d for MMC card detection\n",
+		dev_name(dev), irq);
+
+	return 0;
+fail:
+	gpio_free(gpio);
+	return err;
+}
+
+static void simone_mmc_spi_exit(struct device *dev, void *mmc)
+{
+	unsigned int gpio = MMC_CARD_DETECT_GPIO;
+
+	free_irq(gpio_to_irq(gpio), mmc);
+	gpio_free(gpio);
+}
+
+static struct mmc_spi_platform_data simone_mmc_spi_data = {
+	.init		= simone_mmc_spi_init,
+	.exit		= simone_mmc_spi_exit,
+	.detect_delay	= 500,
+	.ocr_mask	= MMC_VDD_32_33 | MMC_VDD_33_34,
+};
+
+static struct spi_board_info simone_spi_devices[] __initdata = {
+	{
+		.modalias		= "mmc_spi",
+#ifdef MMC_CHIP_SELECT_GPIO
+		.controller_data	= &simone_mmc_spi_ops,
+#endif
+		.platform_data		= &simone_mmc_spi_data,
+		/*
+		 * We use 10 MHz even though the maximum is 3.7 MHz. The driver
+		 * will limit it automatically to max. frequency.
+		 */
+		.max_speed_hz		= 10 * 1000 * 1000,
+		.bus_num		= 0,
+		.chip_select		= 0,
+		.mode			= SPI_MODE_3,
+	},
+};
+
+static struct ep93xx_spi_info simone_spi_info __initdata = {
+	.num_chipselect = ARRAY_SIZE(simone_spi_devices),
+};
+
+ static struct i2c_gpio_platform_data __initdata simone_i2c_gpio_data = {
+ 	.sda_pin		= EP93XX_GPIO_LINE_EEDAT,
+ 	.sda_is_open_drain	= 0,
+@@ -74,6 +208,8 @@ static void __init simone_init_machine(v
+ 	ep93xx_register_fb(&simone_fb_info);
+ 	ep93xx_register_i2c(&simone_i2c_gpio_data, simone_i2c_board_info,
+ 			    ARRAY_SIZE(simone_i2c_board_info));
+	ep93xx_register_spi(&simone_spi_info, simone_spi_devices,
+			    ARRAY_SIZE(simone_spi_devices));
+ 	simone_register_audio();
+ }
+