From 5f32f7a028c9e8e032132b1818bde6cda5785a6b Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Fri, 28 May 2010 13:10:52 +0400 Subject: ARM: cns3xxx: Add support for PCI Express ports This patch adds PCIe support for CNS3xxx-based boards. The support was tested with a directly attached SKY2 NIC, and EHCI USB controller behind the PLX PEX8112 P2P bridge (to make sure that type1 cfg cycles work as expected). Signed-off-by: Anton Vorontsov --- arch/arm/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/arm/Kconfig') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 1f254bd6c93..fab2ddd4dcf 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -301,6 +301,7 @@ config ARCH_CNS3XXX select CPU_V6 select GENERIC_CLOCKEVENTS select ARM_GIC + select PCI_DOMAINS if PCI help Support for Cavium Networks CNS3XXX platform. @@ -1059,7 +1060,7 @@ config ISA_DMA_API bool config PCI - bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE + bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE || ARCH_CNS3XXX help Find out whether you have a PCI motherboard. PCI is the name of a bus system, i.e. the way the CPU talks to the other stuff inside -- cgit v1.2.3 From c743f38013aeff58ef6252601e397b5ba281c633 Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Mon, 24 May 2010 23:55:42 -0400 Subject: ARM: initial stack protector (-fstack-protector) support This is the very basic stuff without the changing canary upon task switch yet. Just the Kconfig option and a constant canary value initialized at boot time. Signed-off-by: Nicolas Pitre --- arch/arm/Kconfig | 12 +++++++++++ arch/arm/Makefile | 4 ++++ arch/arm/include/asm/stackprotector.h | 38 +++++++++++++++++++++++++++++++++++ arch/arm/kernel/process.c | 6 ++++++ 4 files changed, 60 insertions(+) create mode 100644 arch/arm/include/asm/stackprotector.h (limited to 'arch/arm/Kconfig') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 1f254bd6c93..f160b93691c 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1374,6 +1374,18 @@ config UACCESS_WITH_MEMCPY However, if the CPU data cache is using a write-allocate mode, this option is unlikely to provide any performance gain. +config CC_STACKPROTECTOR + bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)" + help + This option turns on the -fstack-protector GCC feature. This + feature puts, at the beginning of functions, a canary value on + the stack just before the return address, and validates + the value just before actually returning. Stack based buffer + overflows (that need to overwrite this return address) now also + overwrite the canary, which gets detected and the attack is then + neutralized via a kernel panic. + This feature requires gcc version 4.2 or above. + endmenu menu "Boot options" diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 64ba313724d..ddf6da158ad 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -34,6 +34,10 @@ ifeq ($(CONFIG_FRAME_POINTER),y) KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog endif +ifeq ($(CONFIG_CC_STACKPROTECTOR),y) +KBUILD_CFLAGS +=-fstack-protector +endif + ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) KBUILD_CPPFLAGS += -mbig-endian AS += -EB diff --git a/arch/arm/include/asm/stackprotector.h b/arch/arm/include/asm/stackprotector.h new file mode 100644 index 00000000000..de003327be9 --- /dev/null +++ b/arch/arm/include/asm/stackprotector.h @@ -0,0 +1,38 @@ +/* + * GCC stack protector support. + * + * Stack protector works by putting predefined pattern at the start of + * the stack frame and verifying that it hasn't been overwritten when + * returning from the function. The pattern is called stack canary + * and gcc expects it to be defined by a global variable called + * "__stack_chk_guard" on ARM. This unfortunately means that on SMP + * we cannot have a different canary value per task. + */ + +#ifndef _ASM_STACKPROTECTOR_H +#define _ASM_STACKPROTECTOR_H 1 + +#include +#include + +extern unsigned long __stack_chk_guard; + +/* + * Initialize the stackprotector canary value. + * + * NOTE: this must only be called from functions that never return, + * and it must always be inlined. + */ +static __always_inline void boot_init_stack_canary(void) +{ + unsigned long canary; + + /* Try to get a semi random initial value. */ + get_random_bytes(&canary, sizeof(canary)); + canary ^= LINUX_VERSION_CODE; + + current->stack_canary = canary; + __stack_chk_guard = current->stack_canary; +} + +#endif /* _ASM_STACKPROTECTOR_H */ diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 1c6eb7ed964..090ac9459da 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -37,6 +37,12 @@ #include #include +#ifdef CONFIG_CC_STACKPROTECTOR +#include +unsigned long __stack_chk_guard __read_mostly; +EXPORT_SYMBOL(__stack_chk_guard); +#endif + static const char *processor_modes[] = { "USER_26", "FIQ_26" , "IRQ_26" , "SVC_26" , "UK4_26" , "UK5_26" , "UK6_26" , "UK7_26" , "UK8_26" , "UK9_26" , "UK10_26", "UK11_26", "UK12_26", "UK13_26", "UK14_26", "UK15_26", -- cgit v1.2.3 From 923a081c72fa2dccb7ea7070bd8e0f4dc99ceff8 Mon Sep 17 00:00:00 2001 From: Pavel Machek Date: Wed, 2 Jun 2010 11:11:12 -0700 Subject: Add GPIO support for HTC Dream. Signed-off-by: Pavel Machek [dwalker@codeaurora.org: renamed to trout, checkpatch cleanup] Signed-off-by: Daniel Walker --- arch/arm/Kconfig | 1 + arch/arm/mach-msm/Makefile | 2 +- arch/arm/mach-msm/board-trout-gpio.c | 112 ++++++++++++++++++++++++ arch/arm/mach-msm/board-trout.h | 157 ++++++++++++++++++++++++++++++++++ arch/arm/mach-msm/include/mach/gpio.h | 7 ++ 5 files changed, 278 insertions(+), 1 deletion(-) create mode 100644 arch/arm/mach-msm/board-trout-gpio.c (limited to 'arch/arm/Kconfig') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 1f254bd6c93..c171f35b73a 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -586,6 +586,7 @@ config ARCH_MSM bool "Qualcomm MSM" select HAVE_CLK select GENERIC_CLOCKEVENTS + select ARCH_REQUIRE_GPIOLIB help Support for Qualcomm MSM/QSD based systems. This runs on the apps processor of the MSM/QSD and depends on a shared memory diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile index 66677f0acae..7ff8020d4d2 100644 --- a/arch/arm/mach-msm/Makefile +++ b/arch/arm/mach-msm/Makefile @@ -15,7 +15,7 @@ obj-$(CONFIG_ARCH_QSD8X50) += sirc.o obj-$(CONFIG_MSM_SMD) += smd.o smd_debug.o obj-$(CONFIG_MSM_SMD) += last_radio_log.o -obj-$(CONFIG_MACH_TROUT) += board-trout.o devices-msm7x00.o +obj-$(CONFIG_MACH_TROUT) += board-trout.o board-trout-gpio.o devices-msm7x00.o obj-$(CONFIG_MACH_HALIBUT) += board-halibut.o devices-msm7x00.o obj-$(CONFIG_ARCH_MSM7X30) += board-msm7x30.o devices-msm7x30.o obj-$(CONFIG_ARCH_QSD8X50) += board-qsd8x50.o devices-qsd8x50.o diff --git a/arch/arm/mach-msm/board-trout-gpio.c b/arch/arm/mach-msm/board-trout-gpio.c new file mode 100644 index 00000000000..523d213bf79 --- /dev/null +++ b/arch/arm/mach-msm/board-trout-gpio.c @@ -0,0 +1,112 @@ +/* + * linux/arch/arm/mach-msm/gpio.c + * + * Copyright (C) 2005 HP Labs + * Copyright (C) 2008 Google, Inc. + * Copyright (C) 2009 Pavel Machek + * + * 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. + */ + +#include +#include +#include +#include +#include + +#include "board-trout.h" + +struct msm_gpio_chip { + struct gpio_chip chip; + void __iomem *reg; /* Base of register bank */ + u8 shadow; +}; + +#define to_msm_gpio_chip(c) container_of(c, struct msm_gpio_chip, chip) + +static int msm_gpiolib_get(struct gpio_chip *chip, unsigned offset) +{ + struct msm_gpio_chip *msm_gpio = to_msm_gpio_chip(chip); + unsigned mask = 1 << offset; + + return !!(readb(msm_gpio->reg) & mask); +} + +static void msm_gpiolib_set(struct gpio_chip *chip, unsigned offset, int val) +{ + struct msm_gpio_chip *msm_gpio = to_msm_gpio_chip(chip); + unsigned mask = 1 << offset; + + if (val) + msm_gpio->shadow |= mask; + else + msm_gpio->shadow &= ~mask; + + writeb(msm_gpio->shadow, msm_gpio->reg); +} + +static int msm_gpiolib_direction_input(struct gpio_chip *chip, + unsigned offset) +{ + msm_gpiolib_set(chip, offset, 0); + return 0; +} + +static int msm_gpiolib_direction_output(struct gpio_chip *chip, + unsigned offset, int val) +{ + msm_gpiolib_set(chip, offset, val); + return 0; +} + +#define TROUT_GPIO_BANK(name, reg_num, base_gpio, shadow_val) \ + { \ + .chip = { \ + .label = name, \ + .direction_input = msm_gpiolib_direction_input,\ + .direction_output = msm_gpiolib_direction_output, \ + .get = msm_gpiolib_get, \ + .set = msm_gpiolib_set, \ + .base = base_gpio, \ + .ngpio = 8, \ + }, \ + .reg = (void *) reg_num + TROUT_CPLD_BASE, \ + .shadow = shadow_val, \ + } + +static struct msm_gpio_chip msm_gpio_banks[] = { +#if defined(CONFIG_MSM_DEBUG_UART1) + /* H2W pins <-> UART1 */ + TROUT_GPIO_BANK("MISC2", 0x00, TROUT_GPIO_MISC2_BASE, 0x40), +#else + /* H2W pins <-> UART3, Bluetooth <-> UART1 */ + TROUT_GPIO_BANK("MISC2", 0x00, TROUT_GPIO_MISC2_BASE, 0x80), +#endif + /* I2C pull */ + TROUT_GPIO_BANK("MISC3", 0x02, TROUT_GPIO_MISC3_BASE, 0x04), + TROUT_GPIO_BANK("MISC4", 0x04, TROUT_GPIO_MISC4_BASE, 0), + /* mmdi 32k en */ + TROUT_GPIO_BANK("MISC5", 0x06, TROUT_GPIO_MISC5_BASE, 0x04), + TROUT_GPIO_BANK("INT2", 0x08, TROUT_GPIO_INT2_BASE, 0), + TROUT_GPIO_BANK("MISC1", 0x0a, TROUT_GPIO_MISC1_BASE, 0), + TROUT_GPIO_BANK("VIRTUAL", 0x12, TROUT_GPIO_VIRTUAL_BASE, 0), +}; + +/* + * Called from the processor-specific init to enable GPIO pin support. + */ +int __init trout_init_gpio(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(msm_gpio_banks); i++) + gpiochip_add(&msm_gpio_banks[i].chip); + + return 0; +} + +postcore_initcall(trout_init_gpio); + diff --git a/arch/arm/mach-msm/board-trout.h b/arch/arm/mach-msm/board-trout.h index 4f345a5a0a6..651851c3e1d 100644 --- a/arch/arm/mach-msm/board-trout.h +++ b/arch/arm/mach-msm/board-trout.h @@ -1,5 +1,162 @@ +/* linux/arch/arm/mach-msm/board-trout.h +** Author: Brian Swetland +*/ +#ifndef __ARCH_ARM_MACH_MSM_BOARD_TROUT_H +#define __ARCH_ARM_MACH_MSM_BOARD_TROUT_H + +#include + +#define MSM_SMI_BASE 0x00000000 +#define MSM_SMI_SIZE 0x00800000 + +#define MSM_EBI_BASE 0x10000000 +#define MSM_EBI_SIZE 0x06e00000 + +#define MSM_PMEM_GPU0_BASE 0x00000000 +#define MSM_PMEM_GPU0_SIZE 0x00700000 + +#define MSM_PMEM_MDP_BASE 0x02000000 +#define MSM_PMEM_MDP_SIZE 0x00800000 + +#define MSM_PMEM_ADSP_BASE 0x02800000 +#define MSM_PMEM_ADSP_SIZE 0x00800000 + +#define MSM_PMEM_CAMERA_BASE 0x03000000 +#define MSM_PMEM_CAMERA_SIZE 0x00800000 + +#define MSM_FB_BASE 0x03800000 +#define MSM_FB_SIZE 0x00100000 + +#define MSM_LINUX_BASE MSM_EBI_BASE +#define MSM_LINUX_SIZE 0x06500000 + +#define MSM_PMEM_GPU1_SIZE 0x800000 +#define MSM_PMEM_GPU1_BASE (MSM_RAM_CONSOLE_BASE - MSM_PMEM_GPU1_SIZE) + +#define MSM_RAM_CONSOLE_BASE (MSM_EBI_BASE + 0x6d00000) +#define MSM_RAM_CONSOLE_SIZE (128 * SZ_1K) + +#if (MSM_FB_BASE + MSM_FB_SIZE) >= (MSM_PMEM_GPU1_BASE) +#error invalid memory map +#endif + +#define DECLARE_MSM_IOMAP +#include + +#define TROUT_4_BALL_UP_0 1 +#define TROUT_4_BALL_LEFT_0 18 +#define TROUT_4_BALL_DOWN_0 57 +#define TROUT_4_BALL_RIGHT_0 91 + +#define TROUT_5_BALL_UP_0 94 +#define TROUT_5_BALL_LEFT_0 18 +#define TROUT_5_BALL_DOWN_0 90 +#define TROUT_5_BALL_RIGHT_0 19 + +#define TROUT_POWER_KEY 20 + +#define TROUT_4_TP_LS_EN 19 +#define TROUT_5_TP_LS_EN 1 #define TROUT_CPLD_BASE 0xE8100000 #define TROUT_CPLD_START 0x98000000 #define TROUT_CPLD_SIZE SZ_4K +#define TROUT_GPIO_CABLE_IN1 (83) +#define TROUT_GPIO_CABLE_IN2 (49) + +#define TROUT_GPIO_START (128) + +#define TROUT_GPIO_INT_MASK0_REG (0x0c) +#define TROUT_GPIO_INT_STAT0_REG (0x0e) +#define TROUT_GPIO_INT_MASK1_REG (0x14) +#define TROUT_GPIO_INT_STAT1_REG (0x10) + +#define TROUT_GPIO_HAPTIC_PWM (28) +#define TROUT_GPIO_PS_HOLD (25) + +#define TROUT_GPIO_MISC2_BASE (TROUT_GPIO_START + 0x00) +#define TROUT_GPIO_MISC3_BASE (TROUT_GPIO_START + 0x08) +#define TROUT_GPIO_MISC4_BASE (TROUT_GPIO_START + 0x10) +#define TROUT_GPIO_MISC5_BASE (TROUT_GPIO_START + 0x18) +#define TROUT_GPIO_INT2_BASE (TROUT_GPIO_START + 0x20) +#define TROUT_GPIO_MISC1_BASE (TROUT_GPIO_START + 0x28) +#define TROUT_GPIO_VIRTUAL_BASE (TROUT_GPIO_START + 0x30) +#define TROUT_GPIO_INT5_BASE (TROUT_GPIO_START + 0x48) + +#define TROUT_GPIO_CHARGER_EN (TROUT_GPIO_MISC2_BASE + 0) +#define TROUT_GPIO_ISET (TROUT_GPIO_MISC2_BASE + 1) +#define TROUT_GPIO_H2W_DAT_DIR (TROUT_GPIO_MISC2_BASE + 2) +#define TROUT_GPIO_H2W_CLK_DIR (TROUT_GPIO_MISC2_BASE + 3) +#define TROUT_GPIO_H2W_DAT_GPO (TROUT_GPIO_MISC2_BASE + 4) +#define TROUT_GPIO_H2W_CLK_GPO (TROUT_GPIO_MISC2_BASE + 5) +#define TROUT_GPIO_H2W_SEL0 (TROUT_GPIO_MISC2_BASE + 6) +#define TROUT_GPIO_H2W_SEL1 (TROUT_GPIO_MISC2_BASE + 7) + +#define TROUT_GPIO_SPOTLIGHT_EN (TROUT_GPIO_MISC3_BASE + 0) +#define TROUT_GPIO_FLASH_EN (TROUT_GPIO_MISC3_BASE + 1) +#define TROUT_GPIO_I2C_PULL (TROUT_GPIO_MISC3_BASE + 2) +#define TROUT_GPIO_TP_I2C_PULL (TROUT_GPIO_MISC3_BASE + 3) +#define TROUT_GPIO_TP_EN (TROUT_GPIO_MISC3_BASE + 4) +#define TROUT_GPIO_JOG_EN (TROUT_GPIO_MISC3_BASE + 5) +#define TROUT_GPIO_UI_LED_EN (TROUT_GPIO_MISC3_BASE + 6) +#define TROUT_GPIO_QTKEY_LED_EN (TROUT_GPIO_MISC3_BASE + 7) + +#define TROUT_GPIO_VCM_PWDN (TROUT_GPIO_MISC4_BASE + 0) +#define TROUT_GPIO_USB_H2W_SW (TROUT_GPIO_MISC4_BASE + 1) +#define TROUT_GPIO_COMPASS_RST_N (TROUT_GPIO_MISC4_BASE + 2) +#define TROUT_GPIO_HAPTIC_EN_UP (TROUT_GPIO_MISC4_BASE + 3) +#define TROUT_GPIO_HAPTIC_EN_MAIN (TROUT_GPIO_MISC4_BASE + 4) +#define TROUT_GPIO_USB_PHY_RST_N (TROUT_GPIO_MISC4_BASE + 5) +#define TROUT_GPIO_WIFI_PA_RESETX (TROUT_GPIO_MISC4_BASE + 6) +#define TROUT_GPIO_WIFI_EN (TROUT_GPIO_MISC4_BASE + 7) + +#define TROUT_GPIO_BT_32K_EN (TROUT_GPIO_MISC5_BASE + 0) +#define TROUT_GPIO_MAC_32K_EN (TROUT_GPIO_MISC5_BASE + 1) +#define TROUT_GPIO_MDDI_32K_EN (TROUT_GPIO_MISC5_BASE + 2) +#define TROUT_GPIO_COMPASS_32K_EN (TROUT_GPIO_MISC5_BASE + 3) + +#define TROUT_GPIO_NAVI_ACT_N (TROUT_GPIO_INT2_BASE + 0) +#define TROUT_GPIO_COMPASS_IRQ (TROUT_GPIO_INT2_BASE + 1) +#define TROUT_GPIO_SLIDING_DET (TROUT_GPIO_INT2_BASE + 2) +#define TROUT_GPIO_AUD_HSMIC_DET_N (TROUT_GPIO_INT2_BASE + 3) +#define TROUT_GPIO_SD_DOOR_N (TROUT_GPIO_INT2_BASE + 4) +#define TROUT_GPIO_CAM_BTN_STEP1_N (TROUT_GPIO_INT2_BASE + 5) +#define TROUT_GPIO_CAM_BTN_STEP2_N (TROUT_GPIO_INT2_BASE + 6) +#define TROUT_GPIO_TP_ATT_N (TROUT_GPIO_INT2_BASE + 7) +#define TROUT_GPIO_BANK0_FIRST_INT_SOURCE (TROUT_GPIO_NAVI_ACT_N) +#define TROUT_GPIO_BANK0_LAST_INT_SOURCE (TROUT_GPIO_TP_ATT_N) + +#define TROUT_GPIO_H2W_DAT_GPI (TROUT_GPIO_MISC1_BASE + 0) +#define TROUT_GPIO_H2W_CLK_GPI (TROUT_GPIO_MISC1_BASE + 1) +#define TROUT_GPIO_CPLD128_VER_0 (TROUT_GPIO_MISC1_BASE + 4) +#define TROUT_GPIO_CPLD128_VER_1 (TROUT_GPIO_MISC1_BASE + 5) +#define TROUT_GPIO_CPLD128_VER_2 (TROUT_GPIO_MISC1_BASE + 6) +#define TROUT_GPIO_CPLD128_VER_3 (TROUT_GPIO_MISC1_BASE + 7) + +#define TROUT_GPIO_SDMC_CD_N (TROUT_GPIO_VIRTUAL_BASE + 0) +#define TROUT_GPIO_END (TROUT_GPIO_SDMC_CD_N) +#define TROUT_GPIO_BANK1_FIRST_INT_SOURCE (TROUT_GPIO_SDMC_CD_N) +#define TROUT_GPIO_BANK1_LAST_INT_SOURCE (TROUT_GPIO_SDMC_CD_N) + +#define TROUT_GPIO_VIRTUAL_TO_REAL_OFFSET \ + (TROUT_GPIO_INT5_BASE - TROUT_GPIO_VIRTUAL_BASE) + +#define TROUT_INT_START (NR_MSM_IRQS + NR_GPIO_IRQS) +#define TROUT_INT_BANK0_COUNT (8) +#define TROUT_INT_BANK1_START (TROUT_INT_START + TROUT_INT_BANK0_COUNT) +#define TROUT_INT_BANK1_COUNT (1) +#define TROUT_INT_END (TROUT_INT_START + TROUT_INT_BANK0_COUNT + \ + TROUT_INT_BANK1_COUNT - 1) +#define TROUT_GPIO_TO_INT(n) (((n) <= TROUT_GPIO_BANK0_LAST_INT_SOURCE) ? \ + (TROUT_INT_START - TROUT_GPIO_BANK0_FIRST_INT_SOURCE + (n)) : \ + (TROUT_INT_BANK1_START - TROUT_GPIO_BANK1_FIRST_INT_SOURCE + (n))) + +#define TROUT_INT_TO_BANK(n) ((n - TROUT_INT_START) / TROUT_INT_BANK0_COUNT) +#define TROUT_INT_TO_MASK(n) (1U << ((n - TROUT_INT_START) & 7)) +#define TROUT_BANK_TO_MASK_REG(bank) \ + (bank ? TROUT_GPIO_INT_MASK1_REG : TROUT_GPIO_INT_MASK0_REG) +#define TROUT_BANK_TO_STAT_REG(bank) \ + (bank ? TROUT_GPIO_INT_STAT1_REG : TROUT_GPIO_INT_STAT0_REG) + +#endif /* GUARD */ diff --git a/arch/arm/mach-msm/include/mach/gpio.h b/arch/arm/mach-msm/include/mach/gpio.h index 262b441b437..83e47c0d5c2 100644 --- a/arch/arm/mach-msm/include/mach/gpio.h +++ b/arch/arm/mach-msm/include/mach/gpio.h @@ -16,6 +16,13 @@ #ifndef __ASM_ARCH_MSM_GPIO_H #define __ASM_ARCH_MSM_GPIO_H +#include + +#define gpio_get_value __gpio_get_value +#define gpio_set_value __gpio_set_value +#define gpio_cansleep __gpio_cansleep +#define gpio_to_irq __gpio_to_irq + /** * struct msm_gpio - GPIO pin description * @gpio_cfg - configuration bitmap, as per gpio_tlmm_config() -- cgit v1.2.3 From 73a65b3f8587fa1c83768515ecc0bf6fa44ccdd1 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Tue, 19 Jan 2010 10:13:14 +0100 Subject: ARM: deprecate support for old way to pass kernel parameters MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This was deprecated in 2001 and announced to live on for 5 years. For now provide a kernel parameter for those who still need it. Acked-by: Eric Miao Signed-off-by: Uwe Kleine-König --- arch/arm/Kconfig | 6 ++++++ arch/arm/kernel/Makefile | 4 +++- arch/arm/kernel/compat.c | 7 ------- arch/arm/kernel/compat.h | 2 -- arch/arm/kernel/setup.c | 11 +++++++++++ 5 files changed, 20 insertions(+), 10 deletions(-) (limited to 'arch/arm/Kconfig') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 1f254bd6c93..a53ac6570b6 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1374,6 +1374,12 @@ config UACCESS_WITH_MEMCPY However, if the CPU data cache is using a write-allocate mode, this option is unlikely to provide any performance gain. +config DEPRECATED_PARAM_STRUCT + bool "Provide old way to pass kernel parameters" + help + This was deprecated in 2001 and announced to live on for 5 years. + Some old boot loaders still use this way. + endmenu menu "Boot options" diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile index 26d302c28e1..021f72d8979 100644 --- a/arch/arm/kernel/Makefile +++ b/arch/arm/kernel/Makefile @@ -13,10 +13,12 @@ CFLAGS_REMOVE_return_address.o = -pg # Object file lists. -obj-y := compat.o elf.o entry-armv.o entry-common.o irq.o \ +obj-y := elf.o entry-armv.o entry-common.o irq.o \ process.o ptrace.o return_address.o setup.o signal.o \ sys_arm.o stacktrace.o time.o traps.o +obj-$(CONFIG_DEPRECATED_PARAM_STRUCT) += compat.o + obj-$(CONFIG_LEDS) += leds.o obj-$(CONFIG_OC_ETM) += etm.o diff --git a/arch/arm/kernel/compat.c b/arch/arm/kernel/compat.c index 0a1385442f4..925652318b8 100644 --- a/arch/arm/kernel/compat.c +++ b/arch/arm/kernel/compat.c @@ -217,10 +217,3 @@ void __init convert_to_tag_list(struct tag *tags) struct param_struct *params = (struct param_struct *)tags; build_tag_list(params, ¶ms->u2); } - -void __init squash_mem_tags(struct tag *tag) -{ - for (; tag->hdr.size; tag = tag_next(tag)) - if (tag->hdr.tag == ATAG_MEM) - tag->hdr.tag = ATAG_NONE; -} diff --git a/arch/arm/kernel/compat.h b/arch/arm/kernel/compat.h index 27e61a68bd1..39264ab1b9c 100644 --- a/arch/arm/kernel/compat.h +++ b/arch/arm/kernel/compat.h @@ -9,5 +9,3 @@ */ extern void convert_to_tag_list(struct tag *tags); - -extern void squash_mem_tags(struct tag *tag); diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 122d999bdc7..cbc6ddb1c9b 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -44,7 +44,9 @@ #include #include +#if defined(CONFIG_DEPRECATED_PARAM_STRUCT) #include "compat.h" +#endif #include "atags.h" #include "tcm.h" @@ -663,6 +665,13 @@ static int __init customize_machine(void) } arch_initcall(customize_machine); +static void __init squash_mem_tags(struct tag *tag) +{ + for (; tag->hdr.size; tag = tag_next(tag)) + if (tag->hdr.tag == ATAG_MEM) + tag->hdr.tag = ATAG_NONE; +} + void __init setup_arch(char **cmdline_p) { struct tag *tags = (struct tag *)&init_tags; @@ -683,12 +692,14 @@ void __init setup_arch(char **cmdline_p) else if (mdesc->boot_params) tags = phys_to_virt(mdesc->boot_params); +#if defined(CONFIG_DEPRECATED_PARAM_STRUCT) /* * If we have the old style parameters, convert them to * a tag list. */ if (tags->hdr.tag != ATAG_CORE) convert_to_tag_list(tags); +#endif if (tags->hdr.tag != ATAG_CORE) tags = (struct tag *)&init_tags; -- cgit v1.2.3 From e69edc7939abda1f696c482faa8168d80420f75c Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Mon, 5 Jul 2010 15:56:50 +0200 Subject: ARM: Auto calculate ZRELADDR and provide option for exceptions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit As long as the zImage is placed within the 128MB range from the start of memory, ZRELADDR (Address where the decompressed kernel will be placed, usually == PHYS_OFFSET + TEXT_OFFSET) can be determined at run-time by masking PC with 0xf80000000. Running through all the Makefile.boot, all those zreladdr-y addresses == 0x[0-f][08]00_0000 + TEXT_OFFSET can be determined at run-time. Option CONFIG_AUTO_ZRELADDR and CONFIG_ZRELADDR are introduced, CONFIG_ZRELADDR _must_ be explicitly specified if: - ((zreladdr-y - TEXT_OFFSET) & ~0xf8000000) != 0, which means masking PC with 0xf8000000 will result in an incorrect address. Currently this is only a problem on u300. - or the assumption of the zImage being loaded by the bootloader within the first 128MB of RAM is incorrect - or when ZBOOT_ROM is used, where the above assumption is usually wrong. [ukleinek: changed mask from 0xf0000000 to 0xf8000000 for mx1 and shark + some review fixes from the mailing list] Original-Idea-and-Signed-off-by: Nicolas Pitre Signed-off-by: Eric Miao Signed-off-by: Uwe Kleine-König --- arch/arm/Kconfig | 99 +++++++++++++++++++++++++++++++++++++++ arch/arm/boot/Makefile | 8 ++-- arch/arm/boot/compressed/Makefile | 3 +- arch/arm/boot/compressed/head.S | 12 +++-- 4 files changed, 112 insertions(+), 10 deletions(-) (limited to 'arch/arm/Kconfig') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index a53ac6570b6..0b0cf0d2872 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1490,6 +1490,105 @@ config ATAGS_PROC Should the atags used to boot the kernel be exported in an "atags" file in procfs. Useful with kexec. +config AUTO_ZRELADDR + bool "Auto calculation of the decompressed kernel image address" + depends on !ZBOOT_ROM && !ARCH_U300 + help + ZRELADDR is the physical address where the decompressed kernel + image will be placed. If AUTO_ZRELADDR is selected, the address + will be determined at run-time by masking the current IP with + 0xf8000000. This assumes the zImage being placed in the first 128MB + from start of memory. + +config ZRELADDR + hex "Physical address of the decompressed kernel image" + depends on !AUTO_ZRELADDR + default 0x00008000 if ARCH_BCMRING ||\ + ARCH_CNS3XXX ||\ + ARCH_DOVE ||\ + ARCH_EBSA110 ||\ + ARCH_FOOTBRIDGE ||\ + ARCH_INTEGRATOR ||\ + ARCH_IOP13XX ||\ + ARCH_IOP33X ||\ + ARCH_IXP2000 ||\ + ARCH_IXP23XX ||\ + ARCH_IXP4XX ||\ + ARCH_KIRKWOOD ||\ + ARCH_KS8695 ||\ + ARCH_LOKI ||\ + ARCH_MMP ||\ + ARCH_MV78XX0 ||\ + ARCH_NOMADIK ||\ + ARCH_NUC93X ||\ + ARCH_NS9XXX ||\ + ARCH_ORION5X ||\ + ARCH_SPEAR3XX ||\ + ARCH_SPEAR6XX ||\ + ARCH_U8500 ||\ + ARCH_VERSATILE ||\ + ARCH_W90X900 + default 0x08008000 if ARCH_MX1 ||\ + ARCH_SHARK + default 0x10008000 if ARCH_MSM ||\ + ARCH_OMAP1 ||\ + ARCH_RPC + default 0x20008000 if ARCH_S5P6440 ||\ + ARCH_S5P6442 ||\ + ARCH_S5PC100 ||\ + ARCH_S5PV210 + default 0x30008000 if ARCH_S3C2410 ||\ + ARCH_S3C2400 ||\ + ARCH_S3C2412 ||\ + ARCH_S3C2416 ||\ + ARCH_S3C2440 ||\ + ARCH_S3C2443 + default 0x40008000 if ARCH_STMP378X ||\ + ARCH_STMP37XX ||\ + ARCH_SH7372 ||\ + ARCH_SH7377 + default 0x50008000 if ARCH_S3C64XX ||\ + ARCH_SH7367 + default 0x60008000 if ARCH_VEXPRESS + default 0x80008000 if ARCH_MX25 ||\ + ARCH_MX3 ||\ + ARCH_NETX ||\ + ARCH_OMAP2PLUS ||\ + ARCH_PNX4008 + default 0x90008000 if ARCH_MX5 ||\ + ARCH_MX91231 + default 0xa0008000 if ARCH_IOP32X ||\ + ARCH_PXA ||\ + MACH_MX27 + default 0xc0008000 if ARCH_LH7A40X ||\ + MACH_MX21 + default 0xf0008000 if ARCH_AAEC2000 ||\ + ARCH_L7200 + default 0xc0028000 if ARCH_CLPS711X + default 0x70008000 if ARCH_AT91 && (ARCH_AT91CAP9 || ARCH_AT91SAM9G45) + default 0x20008000 if ARCH_AT91 && !(ARCH_AT91CAP9 || ARCH_AT91SAM9G45) + default 0xc0008000 if ARCH_DAVINCI && ARCH_DAVINCI_DA8XX + default 0x80008000 if ARCH_DAVINCI && !ARCH_DAVINCI_DA8XX + default 0x00008000 if ARCH_EP93XX && EP93XX_SDCE3_SYNC_PHYS_OFFSET + default 0xc0008000 if ARCH_EP93XX && EP93XX_SDCE0_PHYS_OFFSET + default 0xd0008000 if ARCH_EP93XX && EP93XX_SDCE1_PHYS_OFFSET + default 0xe0008000 if ARCH_EP93XX && EP93XX_SDCE2_PHYS_OFFSET + default 0xf0008000 if ARCH_EP93XX && EP93XX_SDCE3_ASYNC_PHYS_OFFSET + default 0x00008000 if ARCH_GEMINI && GEMINI_MEM_SWAP + default 0x10008000 if ARCH_GEMINI && !GEMINI_MEM_SWAP + default 0x70008000 if ARCH_REALVIEW && REALVIEW_HIGH_PHYS_OFFSET + default 0x00008000 if ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET + default 0xc0208000 if ARCH_SA1100 && SA1111 + default 0xc0008000 if ARCH_SA1100 && !SA1111 + default 0x30108000 if ARCH_S3C2410 && PM_H1940 + default 0x28E08000 if ARCH_U300 && MACH_U300_SINGLE_RAM + default 0x48008000 if ARCH_U300 && !MACH_U300_SINGLE_RAM + help + ZRELADDR is the physical address where the decompressed kernel + image will be placed. ZRELADDR has to be specified when the + assumption of AUTO_ZRELADDR is not valid, or when ZBOOT_ROM is + selected. + endmenu menu "CPU Power Management" diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile index 4a590f4113e..f705213caa8 100644 --- a/arch/arm/boot/Makefile +++ b/arch/arm/boot/Makefile @@ -14,18 +14,16 @@ MKIMAGE := $(srctree)/scripts/mkuboot.sh ifneq ($(MACHINE),) -include $(srctree)/$(MACHINE)/Makefile.boot +-include $(srctree)/$(MACHINE)/Makefile.boot endif # Note: the following conditions must always be true: -# ZRELADDR == virt_to_phys(PAGE_OFFSET + TEXT_OFFSET) # PARAMS_PHYS must be within 4MB of ZRELADDR # INITRD_PHYS must be in RAM -ZRELADDR := $(zreladdr-y) PARAMS_PHYS := $(params_phys-y) INITRD_PHYS := $(initrd_phys-y) -export ZRELADDR INITRD_PHYS PARAMS_PHYS +export INITRD_PHYS PARAMS_PHYS targets := Image zImage xipImage bootpImage uImage @@ -67,7 +65,7 @@ quiet_cmd_uimage = UIMAGE $@ ifeq ($(CONFIG_ZBOOT_ROM),y) $(obj)/uImage: LOADADDR=$(CONFIG_ZBOOT_ROM_TEXT) else -$(obj)/uImage: LOADADDR=$(ZRELADDR) +$(obj)/uImage: LOADADDR=$(CONFIG_ZRELADDR) endif ifeq ($(CONFIG_THUMB2_KERNEL),y) diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile index 2a80c9de6ea..cc8380b879f 100644 --- a/arch/arm/boot/compressed/Makefile +++ b/arch/arm/boot/compressed/Makefile @@ -4,6 +4,7 @@ # create a compressed vmlinuz image from the original vmlinux # +AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET) HEAD = head.o OBJS = misc.o decompress.o FONTC = $(srctree)/drivers/video/console/font_acorn_8x8.c @@ -79,8 +80,6 @@ endif EXTRA_CFLAGS := -fpic -fno-builtin EXTRA_AFLAGS := -Wa,-march=all -# Supply ZRELADDR to the decompressor via a linker symbol. -LDFLAGS_vmlinux := --defsym zreladdr=$(ZRELADDR) ifeq ($(CONFIG_CPU_ENDIAN_BE8),y) LDFLAGS_vmlinux += --be8 endif diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S index d27faa13179..abf4d65acf6 100644 --- a/arch/arm/boot/compressed/head.S +++ b/arch/arm/boot/compressed/head.S @@ -170,9 +170,16 @@ not_angel: .text adr r0, LC0 - ARM( ldmia r0, {r1, r2, r3, r4, r5, r6, r11, ip, sp}) - THUMB( ldmia r0, {r1, r2, r3, r4, r5, r6, r11, ip} ) + ARM( ldmia r0, {r1, r2, r3, r5, r6, r11, ip, sp}) + THUMB( ldmia r0, {r1, r2, r3, r5, r6, r11, ip} ) THUMB( ldr sp, [r0, #32] ) +#ifdef CONFIG_AUTO_ZRELADDR + @ determine final kernel image address + and r4, pc, #0xf8000000 + add r4, r4, #TEXT_OFFSET +#else + ldr r4, =CONFIG_ZRELADDR +#endif subs r0, r0, r1 @ calculate the delta offset @ if delta is zero, we are @@ -310,7 +317,6 @@ wont_overwrite: mov r0, r4 LC0: .word LC0 @ r1 .word __bss_start @ r2 .word _end @ r3 - .word zreladdr @ r4 .word _start @ r5 .word _image_size @ r6 .word _got_start @ r11 -- cgit v1.2.3 From 408059495a372f1a9845672e58608fb6d8ec0c40 Mon Sep 17 00:00:00 2001 From: Kevin Wells Date: Tue, 27 Jul 2010 08:49:04 -0700 Subject: ARM: Add support for the LPC32XX arch MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add LPC32XX support in arch/arm/Kconfig and arch/arm/Makefile Signed-off-by: Kevin Wells Signed-off-by: Uwe Kleine-König --- arch/arm/Kconfig | 15 +++++++++++++++ arch/arm/Makefile | 1 + 2 files changed, 16 insertions(+) (limited to 'arch/arm/Kconfig') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 98922f7d2d1..9a189f757c9 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -482,6 +482,19 @@ config ARCH_LOKI help Support for the Marvell Loki (88RC8480) SoC. +config ARCH_LPC32XX + bool "NXP LPC32XX" + select CPU_ARM926T + select ARCH_REQUIRE_GPIOLIB + select HAVE_IDE + select ARM_AMBA + select USB_ARCH_HAS_OHCI + select COMMON_CLKDEV + select GENERIC_TIME + select GENERIC_CLOCKEVENTS + help + Support for the NXP LPC32XX family of processors + config ARCH_MV78XX0 bool "Marvell MV78xx0" select CPU_FEROCEON @@ -845,6 +858,8 @@ source "arch/arm/mach-lh7a40x/Kconfig" source "arch/arm/mach-loki/Kconfig" +source "arch/arm/mach-lpc32xx/Kconfig" + source "arch/arm/mach-msm/Kconfig" source "arch/arm/mach-mv78xx0/Kconfig" diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 64ba313724d..6a612c5483c 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -142,6 +142,7 @@ machine-$(CONFIG_ARCH_KS8695) := ks8695 machine-$(CONFIG_ARCH_L7200) := l7200 machine-$(CONFIG_ARCH_LH7A40X) := lh7a40x machine-$(CONFIG_ARCH_LOKI) := loki +machine-$(CONFIG_ARCH_LPC32XX) := lpc32xx machine-$(CONFIG_ARCH_MMP) := mmp machine-$(CONFIG_ARCH_MSM) := msm machine-$(CONFIG_ARCH_MV78XX0) := mv78xx0 -- cgit v1.2.3