From abf015f04614a3a7da43d35b55edc90189af4e6a Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 7 Nov 2011 19:04:36 +0000 Subject: Revert "ARM: 7098/1: kdump: copy kernel relocation code at the kexec prepare stage" This reverts commit 2b034922af2caa19df86f0c502e76cb6f6e910f9. Will Deacon reports: This is causing kexec to fail. The symptoms are that the .init.text section is not loaded as part of the new kernel image, so when we try to do the SMP/UP fixups we hit a whole sea of poison left there by the previous kernel. So my guess is that machine_kexec_prepare *is* too early for preparing the reboot_code_buffer and, unless anybody has a good reason not to, I'd like to revert the patch causing these problems. Reported-by: Will Deacon diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index c1b4463..e59bbd4 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -32,24 +32,6 @@ static atomic_t waiting_for_crash_ipi; int machine_kexec_prepare(struct kimage *image) { - unsigned long page_list; - void *reboot_code_buffer; - page_list = image->head & PAGE_MASK; - - reboot_code_buffer = page_address(image->control_code_page); - - /* Prepare parameters for reboot_code_buffer*/ - kexec_start_address = image->start; - kexec_indirection_page = page_list; - kexec_mach_type = machine_arch_type; - kexec_boot_atags = image->start - KEXEC_ARM_ZIMAGE_OFFSET + KEXEC_ARM_ATAGS_OFFSET; - - /* copy our kernel relocation code to the control code page */ - memcpy(reboot_code_buffer, - relocate_new_kernel, relocate_new_kernel_size); - - flush_icache_range((unsigned long) reboot_code_buffer, - (unsigned long) reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE); return 0; } @@ -100,14 +82,31 @@ void (*kexec_reinit)(void); void machine_kexec(struct kimage *image) { + unsigned long page_list; unsigned long reboot_code_buffer_phys; void *reboot_code_buffer; + + page_list = image->head & PAGE_MASK; + /* we need both effective and real address here */ reboot_code_buffer_phys = page_to_pfn(image->control_code_page) << PAGE_SHIFT; reboot_code_buffer = page_address(image->control_code_page); + /* Prepare parameters for reboot_code_buffer*/ + kexec_start_address = image->start; + kexec_indirection_page = page_list; + kexec_mach_type = machine_arch_type; + kexec_boot_atags = image->start - KEXEC_ARM_ZIMAGE_OFFSET + KEXEC_ARM_ATAGS_OFFSET; + + /* copy our kernel relocation code to the control code page */ + memcpy(reboot_code_buffer, + relocate_new_kernel, relocate_new_kernel_size); + + + flush_icache_range((unsigned long) reboot_code_buffer, + (unsigned long) reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE); printk(KERN_INFO "Bye!\n"); if (kexec_reinit) -- cgit v0.10.2 From 71e63e748ee6f4bad482b8021386eeb74f6e47f1 Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Fri, 4 Nov 2011 08:10:09 +0100 Subject: ARM: 7149/1: spi/pl022: Enable clock in probe Make sure we enable the clock before leaving probe. Signed-off-by: Ulf Hansson Acked-by: Linus Walleij Signed-off-by: Russell King diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c index f103e47..5559b22 100644 --- a/drivers/spi/spi-pl022.c +++ b/drivers/spi/spi-pl022.c @@ -2184,6 +2184,12 @@ pl022_probe(struct amba_device *adev, const struct amba_id *id) goto err_clk_prep; } + status = clk_enable(pl022->clk); + if (status) { + dev_err(&adev->dev, "could not enable SSP/SPI bus clock\n"); + goto err_no_clk_en; + } + /* Disable SSP */ writew((readw(SSP_CR1(pl022->virtbase)) & (~SSP_CR1_MASK_SSE)), SSP_CR1(pl022->virtbase)); @@ -2237,6 +2243,8 @@ pl022_probe(struct amba_device *adev, const struct amba_id *id) free_irq(adev->irq[0], pl022); err_no_irq: + clk_disable(pl022->clk); + err_no_clk_en: clk_unprepare(pl022->clk); err_clk_prep: clk_put(pl022->clk); -- cgit v0.10.2 From 8428e84d42179c2a00f5f6450866e70d802d1d05 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Mon, 7 Nov 2011 18:05:53 +0100 Subject: ARM: 7150/1: Allow kernel unaligned accesses on ARMv6+ processors Recent gcc versions generate unaligned accesses by default on ARMv6 and later processors. This patch ensures that the SCTLR.A bit is always cleared on such processors to avoid kernel traping before alignment_init() is called. Signed-off-by: Catalin Marinas Tested-by: John Linn Acked-by: Nicolas Pitre Cc: stable@vger.kernel.org Signed-off-by: Russell King diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 566c54c..08c82fd 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -360,7 +360,7 @@ __secondary_data: * r13 = *virtual* address to jump to upon completion */ __enable_mmu: -#ifdef CONFIG_ALIGNMENT_TRAP +#if defined(CONFIG_ALIGNMENT_TRAP) && __LINUX_ARM_ARCH__ < 6 orr r0, r0, #CR_A #else bic r0, r0, #CR_A -- cgit v0.10.2 From 5f300acd8ae9f3d4585154370012ffc5c665330f Mon Sep 17 00:00:00 2001 From: Dirk B Date: Tue, 8 Nov 2011 18:16:39 +0100 Subject: ARM: 7152/1: distclean: Remove generated .dtb files The patch 'arm/dt: Add dtb make rule' adds support to create a .dtb file. But this is never removed afterwards. Remove the generated .dtb file if 'distclean' is called. Signed-off-by: Dirk Behme Acked-by: Rob Herring Acked-by: Grant Likely Cc: Shawn Guo Cc: Jason Liu Signed-off-by: Russell King diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile index 176062a..5df26a9 100644 --- a/arch/arm/boot/Makefile +++ b/arch/arm/boot/Makefile @@ -65,6 +65,8 @@ $(obj)/%.dtb: $(src)/dts/%.dts $(obj)/dtbs: $(addprefix $(obj)/, $(dtb-y)) +clean-files := *.dtb + quiet_cmd_uimage = UIMAGE $@ cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A arm -O linux -T kernel \ -C none -a $(LOADADDR) -e $(STARTADDR) \ -- cgit v0.10.2 From 8658ca730fa66fd6b8c559315915c774330f35bb Mon Sep 17 00:00:00 2001 From: "Maxin B. John" Date: Wed, 9 Nov 2011 11:12:58 +0100 Subject: ARM: 7153/1: mach-bcmring: fix build error in core.c Fixes this build error: CC arch/arm/mach-bcmring/core.o arch/arm/mach-bcmring/core.c: In function 'bcmring_init_timer': arch/arm/mach-bcmring/core.c:238: error: implicit declaration of function 'sp804_clockevents_register' make[1]: *** [arch/arm/mach-bcmring/core.o] Error 1 make: *** [arch/arm/mach-bcmring] Error 2 Signed-off-by: Maxin B. John Reviewed-by: Jiandong Zheng Signed-off-by: Russell King diff --git a/arch/arm/mach-bcmring/core.c b/arch/arm/mach-bcmring/core.c index 43eadbc..430da12 100644 --- a/arch/arm/mach-bcmring/core.c +++ b/arch/arm/mach-bcmring/core.c @@ -235,7 +235,7 @@ void __init bcmring_init_timer(void) */ bcmring_clocksource_init(); - sp804_clockevents_register(TIMER0_VA_BASE, IRQ_TIMER0, "timer0"); + sp804_clockevents_init(TIMER0_VA_BASE, IRQ_TIMER0, "timer0"); } struct sys_timer bcmring_timer = { -- cgit v0.10.2 From 5fc86281b9eba5eb9cfab999bcb00deb335da762 Mon Sep 17 00:00:00 2001 From: "Maxin B. John" Date: Wed, 9 Nov 2011 11:27:36 +0100 Subject: ARM: 7154/1: mach-bcmring: fix build error in dma.c Fixes this build error: CC arch/arm/mach-bcmring/dma.o arch/arm/mach-bcmring/dma.c: In function 'dma_request_channel_dbg': arch/arm/mach-bcmring/dma.c:1022: error: 'TASK_INTERRUPTIBLE' undeclared (first use in this function) arch/arm/mach-bcmring/dma.c:1022: error: (Each undeclared identifier is reported only once arch/arm/mach-bcmring/dma.c:1022: error: for each function it appears in.) arch/arm/mach-bcmring/dma.c:1024: error: implicit declaration of function 'schedule' arch/arm/mach-bcmring/dma.c:1027: error: implicit declaration of function 'signal_pending' arch/arm/mach-bcmring/dma.c: In function 'dma_free_channel': arch/arm/mach-bcmring/dma.c:1092: error: 'TASK_INTERRUPTIBLE' undeclared (first use in this function) arch/arm/mach-bcmring/dma.c: In function 'dma_map_add_region': arch/arm/mach-bcmring/dma.c:1946: error: dereferencing pointer to incomplete type arch/arm/mach-bcmring/dma.c:1948: error: dereferencing pointer to incomplete type arch/arm/mach-bcmring/dma.c:1955: error: dereferencing pointer to incomplete type make[1]: *** [arch/arm/mach-bcmring/dma.o] Error 1 make: *** [arch/arm/mach-bcmring] Error 2 Signed-off-by: Maxin B. John Reviewed-by: Jiandong Zheng Signed-off-by: Russell King diff --git a/arch/arm/mach-bcmring/dma.c b/arch/arm/mach-bcmring/dma.c index b52b8de..f4d4d6d 100644 --- a/arch/arm/mach-bcmring/dma.c +++ b/arch/arm/mach-bcmring/dma.c @@ -36,6 +36,7 @@ #include #include #include +#include #include /* I don't quite understand why dc4 fails when this is set to 1 and DMA is enabled */ -- cgit v0.10.2 From 1a1f2be2a4d7f6f538169dca534c94b221b21923 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Wed, 9 Nov 2011 19:13:43 +0100 Subject: ARM: 7155/1: arch.h: Declare 'pt_regs' locally Fix the following warning when building imx_v4_v5_defconfig target: CC arch/arm/mach-imx/mach-imx27ipcam.o In file included from arch/arm/mach-imx/mach-imx27ipcam.c:18: /home/fabio/linus/linux-2.6/arch/arm/include/asm/mach/arch.h:47: warning: 'struct pt_regs' declared inside parameter list /home/fabio/linus/linux-2.6/arch/arm/include/asm/mach/arch.h:47: warning: its scope is only this definition or declaration, which is probably not what you want arch/arm/mach-imx/mach-imx27ipcam.c:78: warning: initialization from incompatible pointer type Declare 'struct pt_regs' locally. Cc: Eric Miao Signed-off-by: Fabio Estevam Signed-off-by: Russell King diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h index 7d19425..2b0efc3 100644 --- a/arch/arm/include/asm/mach/arch.h +++ b/arch/arm/include/asm/mach/arch.h @@ -13,6 +13,7 @@ struct tag; struct meminfo; struct sys_timer; +struct pt_regs; struct machine_desc { unsigned int nr; /* architecture number */ -- cgit v0.10.2 From e7c86c7b264c57b4d6d121c48ce3be98a2e6f8c5 Mon Sep 17 00:00:00 2001 From: Olof Johansson Date: Wed, 9 Nov 2011 22:10:00 +0100 Subject: ARM: 7156/1: l2x0: fix compile error on !CONFIG_USE_OF fae2b89ab1 (ARM: l2x0: add empty l2x0_of_init) adds a static inline function that returns -ENODEV, but at least on tegra cache-l2x0.h is included without errno.h being pulled in first, resulting in compile errors if OF isn't enabled: In file included from arch/arm/mach-tegra/common.c:26: arch/arm/include/asm/hardware/cache-l2x0.h: In function 'l2x0_of_init': arch/arm/include/asm/hardware/cache-l2x0.h:110: error: 'ENODEV' undeclared (first use in this function) arch/arm/include/asm/hardware/cache-l2x0.h:110: error: (Each undeclared identifier is reported only once arch/arm/include/asm/hardware/cache-l2x0.h:110: error: for each function it appears in.) Add errno.h to the include file to make it self-contained. Signed-off-by: Olof Johansson Acked-by: Rob Herring Signed-off-by: Russell King diff --git a/arch/arm/include/asm/hardware/cache-l2x0.h b/arch/arm/include/asm/hardware/cache-l2x0.h index 1db1143..7df239b 100644 --- a/arch/arm/include/asm/hardware/cache-l2x0.h +++ b/arch/arm/include/asm/hardware/cache-l2x0.h @@ -20,6 +20,8 @@ #ifndef __ASM_ARM_HARDWARE_L2X0_H #define __ASM_ARM_HARDWARE_L2X0_H +#include + #define L2X0_CACHE_ID 0x000 #define L2X0_CACHE_TYPE 0x004 #define L2X0_CTRL 0x100 -- cgit v0.10.2 From a6dc54460e5405248773abef704c7980ab31af77 Mon Sep 17 00:00:00 2001 From: wanzongshun Date: Thu, 10 Nov 2011 07:05:41 +0100 Subject: ARM: 7157/1: fix a building WARNING for nuc900 This patch is to fix a WARNING which is the "modpost: Found 1 section mismatch(es)" for nuc900 platform. Signed-off-by: Wan ZongShun Signed-off-by: Russell King diff --git a/arch/arm/mach-w90x900/dev.c b/arch/arm/mach-w90x900/dev.c index 7a1fa6a..5b0c38a 100644 --- a/arch/arm/mach-w90x900/dev.c +++ b/arch/arm/mach-w90x900/dev.c @@ -422,7 +422,7 @@ struct platform_device nuc900_device_kpi = { /* LCD controller*/ -static struct nuc900fb_display __initdata nuc900_lcd_info[] = { +static struct nuc900fb_display nuc900_lcd_info[] = { /* Giantplus Technology GPM1040A0 320x240 Color TFT LCD */ [0] = { .type = LCM_DCCS_VA_SRC_RGB565, @@ -445,7 +445,7 @@ static struct nuc900fb_display __initdata nuc900_lcd_info[] = { }, }; -static struct nuc900fb_mach_info nuc900_fb_info __initdata = { +static struct nuc900fb_mach_info nuc900_fb_info = { #if defined(CONFIG_GPM1040A0_320X240) .displays = &nuc900_lcd_info[0], #else -- cgit v0.10.2 From 798681bf2127e60f16e9decc5e3a0b901f3ff3fe Mon Sep 17 00:00:00 2001 From: wanzongshun Date: Thu, 10 Nov 2011 07:06:29 +0100 Subject: ARM: 7158/1: add new MFP implement for NUC900 This patch is to add new MFP implement in mfp.c,since nuc900 mmc driver needs this function support. Signed-off-by: Wan ZongShun Signed-off-by: Russell King diff --git a/arch/arm/mach-w90x900/include/mach/mfp.h b/arch/arm/mach-w90x900/include/mach/mfp.h index 94c0e71..23ef1f5 100644 --- a/arch/arm/mach-w90x900/include/mach/mfp.h +++ b/arch/arm/mach-w90x900/include/mach/mfp.h @@ -19,6 +19,7 @@ extern void mfp_set_groupf(struct device *dev); extern void mfp_set_groupc(struct device *dev); extern void mfp_set_groupi(struct device *dev); -extern void mfp_set_groupg(struct device *dev); +extern void mfp_set_groupg(struct device *dev, const char *subname); +extern void mfp_set_groupd(struct device *dev, const char *subname); #endif /* __ASM_ARCH_MFP_H */ diff --git a/arch/arm/mach-w90x900/include/mach/nuc900_spi.h b/arch/arm/mach-w90x900/include/mach/nuc900_spi.h index bd94819..2c4e0c1 100644 --- a/arch/arm/mach-w90x900/include/mach/nuc900_spi.h +++ b/arch/arm/mach-w90x900/include/mach/nuc900_spi.h @@ -14,7 +14,7 @@ #ifndef __ASM_ARCH_SPI_H #define __ASM_ARCH_SPI_H -extern void mfp_set_groupg(struct device *dev); +extern void mfp_set_groupg(struct device *dev, const char *subname); struct nuc900_spi_info { unsigned int num_cs; diff --git a/arch/arm/mach-w90x900/mfp.c b/arch/arm/mach-w90x900/mfp.c index fb7fb62..9dd7461 100644 --- a/arch/arm/mach-w90x900/mfp.c +++ b/arch/arm/mach-w90x900/mfp.c @@ -26,10 +26,8 @@ #define REG_MFSEL (W90X900_VA_GCR + 0xC) #define GPSELF (0x01 << 1) - #define GPSELC (0x03 << 2) -#define ENKPI (0x02 << 2) -#define ENNAND (0x01 << 2) +#define GPSELD (0x0f << 4) #define GPSELEI0 (0x01 << 26) #define GPSELEI1 (0x01 << 27) @@ -37,11 +35,16 @@ #define GPIOG0TO1 (0x03 << 14) #define GPIOG2TO3 (0x03 << 16) #define GPIOG22TO23 (0x03 << 22) +#define GPIOG18TO20 (0x07 << 18) #define ENSPI (0x0a << 14) #define ENI2C0 (0x01 << 14) #define ENI2C1 (0x01 << 16) #define ENAC97 (0x02 << 22) +#define ENSD1 (0x02 << 18) +#define ENSD0 (0x0a << 4) +#define ENKPI (0x02 << 2) +#define ENNAND (0x01 << 2) static DEFINE_MUTEX(mfp_mutex); @@ -127,16 +130,19 @@ void mfp_set_groupi(struct device *dev) } EXPORT_SYMBOL(mfp_set_groupi); -void mfp_set_groupg(struct device *dev) +void mfp_set_groupg(struct device *dev, const char *subname) { unsigned long mfpen; const char *dev_id; - BUG_ON(!dev); + BUG_ON((!dev) && (!subname)); mutex_lock(&mfp_mutex); - dev_id = dev_name(dev); + if (subname != NULL) + dev_id = subname; + else + dev_id = dev_name(dev); mfpen = __raw_readl(REG_MFSEL); @@ -152,6 +158,9 @@ void mfp_set_groupg(struct device *dev) } else if (strcmp(dev_id, "nuc900-audio") == 0) { mfpen &= ~(GPIOG22TO23); mfpen |= ENAC97;/*enable AC97*/ + } else if (strcmp(dev_id, "nuc900-mmc-port1") == 0) { + mfpen &= ~(GPIOG18TO20); + mfpen |= (ENSD1 | 0x01);/*enable sd1*/ } else { mfpen &= ~(GPIOG0TO1 | GPIOG2TO3);/*GPIOG[3:0]*/ } @@ -162,3 +171,30 @@ void mfp_set_groupg(struct device *dev) } EXPORT_SYMBOL(mfp_set_groupg); +void mfp_set_groupd(struct device *dev, const char *subname) +{ + unsigned long mfpen; + const char *dev_id; + + BUG_ON((!dev) && (!subname)); + + mutex_lock(&mfp_mutex); + + if (subname != NULL) + dev_id = subname; + else + dev_id = dev_name(dev); + + mfpen = __raw_readl(REG_MFSEL); + + if (strcmp(dev_id, "nuc900-mmc-port0") == 0) { + mfpen &= ~GPSELD;/*enable sd0*/ + mfpen |= ENSD0; + } else + mfpen &= (~GPSELD); + + __raw_writel(mfpen, REG_MFSEL); + + mutex_unlock(&mfp_mutex); +} +EXPORT_SYMBOL(mfp_set_groupd); -- cgit v0.10.2 From a34dbfb03f472ad3e063d3b1d1e88f7ef8f88bf1 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 11 Nov 2011 11:35:58 +0100 Subject: ARM: 7160/1: setup: avoid overflowing {elf,arch}_name from proc_info_list setup_processor copies the arch_name and elf_name fields out of the selected proc_info_list into two fixed size buffers. Since the proc_info_list structure is defined in a proc_*.S assembly file, this can lead to subtle errors if the strings defined there are too long (for example, corrupting the machine ID). This patch uses snprintf instead of sprintf to ensure that these buffers are not overrun. Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 7e7977a..3448a3f 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -461,8 +461,10 @@ static void __init setup_processor(void) cpu_name, read_cpuid_id(), read_cpuid_id() & 15, proc_arch[cpu_architecture()], cr_alignment); - sprintf(init_utsname()->machine, "%s%c", list->arch_name, ENDIANNESS); - sprintf(elf_platform, "%s%c", list->elf_name, ENDIANNESS); + snprintf(init_utsname()->machine, __NEW_UTS_LEN + 1, "%s%c", + list->arch_name, ENDIANNESS); + snprintf(elf_platform, ELF_PLATFORM_SIZE, "%s%c", + list->elf_name, ENDIANNESS); elf_hwcap = list->elf_hwcap; #ifndef CONFIG_ARM_THUMB elf_hwcap &= ~HWCAP_THUMB; -- cgit v0.10.2 From e5489847d6fc0ff176048b6e1cf5034507bf703a Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 17 Nov 2011 16:58:00 +0000 Subject: ARM: wire up process_vm_writev and process_vm_readv syscalls These two syscalls were introduced during the last merge window. Add the entries into the ARM call tables for them. Signed-off-by: Russell King diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h index c60a294..4a11237 100644 --- a/arch/arm/include/asm/unistd.h +++ b/arch/arm/include/asm/unistd.h @@ -402,6 +402,8 @@ #define __NR_syncfs (__NR_SYSCALL_BASE+373) #define __NR_sendmmsg (__NR_SYSCALL_BASE+374) #define __NR_setns (__NR_SYSCALL_BASE+375) +#define __NR_process_vm_readv (__NR_SYSCALL_BASE+376) +#define __NR_process_vm_writev (__NR_SYSCALL_BASE+377) /* * The following SWIs are ARM private. diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S index 9943e9e..463ff4a 100644 --- a/arch/arm/kernel/calls.S +++ b/arch/arm/kernel/calls.S @@ -385,6 +385,8 @@ CALL(sys_syncfs) CALL(sys_sendmmsg) /* 375 */ CALL(sys_setns) + CALL(sys_process_vm_readv) + CALL(sys_process_vm_writev) #ifndef syscalls_counted .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls #define syscalls_counted -- cgit v0.10.2