diff --git a/arch/m68k/include/asm/processor.h b/arch/m68k/include/asm/processor.h index 74fd674b15ad9f88f712632789098e233f1a0f0f..cbd3d4751dd2998bb8732652b2bb66d9bd9a4b1d 100644 --- a/arch/m68k/include/asm/processor.h +++ b/arch/m68k/include/asm/processor.h @@ -165,6 +165,8 @@ unsigned long get_wchan(struct task_struct *p); eip; }) #define KSTK_ESP(tsk) ((tsk) == current ? rdusp() : (tsk)->thread.usp) +#define task_pt_regs(tsk) ((struct pt_regs *) ((tsk)->thread.esp0)) + #define cpu_relax() barrier() #endif diff --git a/arch/m68k/include/asm/ptrace.h b/arch/m68k/include/asm/ptrace.h index a6ab663bcc2e8e5439d4e94b080c79e5a7452a54..ee4011c232812819be83d47d5daa253b5ddef1df 100644 --- a/arch/m68k/include/asm/ptrace.h +++ b/arch/m68k/include/asm/ptrace.h @@ -86,7 +86,7 @@ struct switch_stack { extern void show_regs(struct pt_regs *); /* - * These are defined as per linux/ptrace.h, which see. + * These are defined as per linux/ptrace.h. */ struct task_struct; diff --git a/arch/m68k/include/asm/thread_info_no.h b/arch/m68k/include/asm/thread_info_no.h index c2bde5e24b0b9063d3c984e55dc168a6d9329158..a6512bfdd01ddbe5dc304d7fc72e985bd3478259 100644 --- a/arch/m68k/include/asm/thread_info_no.h +++ b/arch/m68k/include/asm/thread_info_no.h @@ -12,8 +12,6 @@ #ifdef __KERNEL__ -#ifndef __ASSEMBLY__ - /* * Size of kernel stack for each process. This must be a power of 2... */ @@ -28,6 +26,8 @@ */ #define THREAD_SIZE (PAGE_SIZE< #include #include +#include +#include #include #include @@ -52,7 +54,6 @@ void (*mach_reset)(void); void (*mach_halt)(void); void (*mach_power_off)(void); - #ifdef CONFIG_M68000 #define CPU "MC68000" #endif @@ -111,6 +112,69 @@ void (*mach_power_off)(void); extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end; extern int _ramstart, _ramend; +#if defined(CONFIG_UBOOT) +/* + * parse_uboot_commandline + * + * Copies u-boot commandline arguments and store them in the proper linux + * variables. + * + * Assumes: + * _init_sp global contains the address in the stack pointer when the + * kernel starts (see head.S::_start) + * + * U-Boot calling convention: + * (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end); + * + * _init_sp can be parsed as such + * + * _init_sp+00 = u-boot cmd after jsr into kernel (skip) + * _init_sp+04 = &kernel board_info (residual data) + * _init_sp+08 = &initrd_start + * _init_sp+12 = &initrd_end + * _init_sp+16 = &cmd_start + * _init_sp+20 = &cmd_end + * + * This also assumes that the memory locations pointed to are still + * unmodified. U-boot places them near the end of external SDRAM. + * + * Argument(s): + * commandp = the linux commandline arg container to fill. + * size = the sizeof commandp. + * + * Returns: + */ +void parse_uboot_commandline(char *commandp, int size) +{ + extern unsigned long _init_sp; + unsigned long *sp; + unsigned long uboot_kbd; + unsigned long uboot_initrd_start, uboot_initrd_end; + unsigned long uboot_cmd_start, uboot_cmd_end; + + + sp = (unsigned long *)_init_sp; + uboot_kbd = sp[1]; + uboot_initrd_start = sp[2]; + uboot_initrd_end = sp[3]; + uboot_cmd_start = sp[4]; + uboot_cmd_end = sp[5]; + + if (uboot_cmd_start && uboot_cmd_end) + strncpy(commandp, (const char *)uboot_cmd_start, size); +#if defined(CONFIG_BLK_DEV_INITRD) + if (uboot_initrd_start && uboot_initrd_end && + (uboot_initrd_end > uboot_initrd_start)) { + initrd_start = uboot_initrd_start; + initrd_end = uboot_initrd_end; + ROOT_DEV = Root_RAM0; + printk(KERN_INFO "initrd at 0x%lx:0x%lx\n", + initrd_start, initrd_end); + } +#endif /* if defined(CONFIG_BLK_DEV_INITRD) */ +} +#endif /* #if defined(CONFIG_UBOOT) */ + void __init setup_arch(char **cmdline_p) { int bootmap_size; @@ -128,7 +192,24 @@ void __init setup_arch(char **cmdline_p) #if defined(CONFIG_BOOTPARAM) strncpy(&command_line[0], CONFIG_BOOTPARAM_STRING, sizeof(command_line)); command_line[sizeof(command_line) - 1] = 0; -#endif +#endif /* CONFIG_BOOTPARAM */ + +#if defined(CONFIG_UBOOT) + /* CONFIG_UBOOT and CONFIG_BOOTPARAM defined, concatenate cmdline */ + #if defined(CONFIG_BOOTPARAM) + /* Add the whitespace separator */ + command_line[strlen(CONFIG_BOOTPARAM_STRING)] = ' '; + /* Parse uboot command line into the rest of the buffer */ + parse_uboot_commandline( + &command_line[(strlen(CONFIG_BOOTPARAM_STRING)+1)], + (sizeof(command_line) - + (strlen(CONFIG_BOOTPARAM_STRING)+1))); + /* Only CONFIG_UBOOT defined, create cmdline */ + #else + parse_uboot_commandline(&command_line[0], sizeof(command_line)); + #endif /* CONFIG_BOOTPARAM */ + command_line[sizeof(command_line) - 1] = 0; +#endif /* CONFIG_UBOOT */ printk(KERN_INFO "\x0F\r\n\nuClinux/" CPU "\n"); @@ -204,6 +285,13 @@ void __init setup_arch(char **cmdline_p) free_bootmem(memory_start, memory_end - memory_start); reserve_bootmem(memory_start, bootmap_size, BOOTMEM_DEFAULT); +#if defined(CONFIG_UBOOT) && defined(CONFIG_BLK_DEV_INITRD) + if ((initrd_start > 0) && (initrd_start < initrd_end) && + (initrd_end < memory_end)) + reserve_bootmem(initrd_start, initrd_end - initrd_start, + BOOTMEM_DEFAULT); +#endif /* if defined(CONFIG_BLK_DEV_INITRD) */ + /* * Get kmalloc into gear. */ diff --git a/arch/m68knommu/kernel/vmlinux.lds.S b/arch/m68knommu/kernel/vmlinux.lds.S index 2736a5e309c0d1b386f2be27b3b3477d58e4a5c1..9f1784f586b95db2d35227189762f8ed22a63517 100644 --- a/arch/m68knommu/kernel/vmlinux.lds.S +++ b/arch/m68knommu/kernel/vmlinux.lds.S @@ -8,6 +8,8 @@ */ #include +#include +#include #if defined(CONFIG_RAMKERNEL) #define RAM_START CONFIG_KERNELBASE @@ -15,7 +17,7 @@ #define TEXT ram #define DATA ram #define INIT ram -#define BSS ram +#define BSSS ram #endif #if defined(CONFIG_ROMKERNEL) || defined(CONFIG_HIMEMKERNEL) #define RAM_START CONFIG_RAMBASE @@ -27,7 +29,7 @@ #define TEXT rom #define DATA ram #define INIT ram -#define BSS ram +#define BSSS ram #endif #ifndef DATA_ADDR @@ -147,40 +149,19 @@ SECTIONS { . = ALIGN(4); _sdata = . ; DATA_DATA - . = ALIGN(32); - *(.data.cacheline_aligned) - . = ALIGN(8192) ; - *(.data.init_task) + CACHELINE_ALIGNED_DATA(32) + INIT_TASK_DATA(THREAD_SIZE) _edata = . ; } > DATA - .init : { - . = ALIGN(4096); + .init.text : { + . = ALIGN(PAGE_SIZE); __init_begin = .; - _sinittext = .; - INIT_TEXT - _einittext = .; - INIT_DATA - . = ALIGN(16); - __setup_start = .; - *(.init.setup) - __setup_end = .; - __initcall_start = .; - INITCALLS - __initcall_end = .; - __con_initcall_start = .; - *(.con_initcall.init) - __con_initcall_end = .; - __security_initcall_start = .; - *(.security_initcall.init) - __security_initcall_end = .; -#ifdef CONFIG_BLK_DEV_INITRD - . = ALIGN(4); - __initramfs_start = .; - *(.init.ramfs) - __initramfs_end = .; -#endif - . = ALIGN(4096); + } > INIT + INIT_TEXT_SECTION(PAGE_SIZE) > INIT + INIT_DATA_SECTION(16) > INIT + .init.data : { + . = ALIGN(PAGE_SIZE); __init_end = .; } > INIT @@ -192,7 +173,7 @@ SECTIONS { . = ALIGN(4) ; _ebss = . ; _end = . ; - } > BSS + } > BSSS DISCARDS } diff --git a/arch/m68knommu/platform/523x/gpio.c b/arch/m68knommu/platform/523x/gpio.c index f02840d54d3c08a173b3202403c18309da05de07..a8842dc278391ef3779f174be88fc8b56687cf77 100644 --- a/arch/m68knommu/platform/523x/gpio.c +++ b/arch/m68knommu/platform/523x/gpio.c @@ -30,7 +30,8 @@ static struct mcf_gpio_chip mcf_gpio_chips[] = { .direction_output = mcf_gpio_direction_output, .get = mcf_gpio_get_value, .set = mcf_gpio_set_value, - .ngpio = 8, + .base = 1, + .ngpio = 7, }, .pddr = MCFEPORT_EPDDR, .podr = MCFEPORT_EPDR, @@ -244,7 +245,7 @@ static struct mcf_gpio_chip mcf_gpio_chips[] = { .get = mcf_gpio_get_value, .set = mcf_gpio_set_value_fast, .base = 96, - .ngpio = 4, + .ngpio = 8, }, .pddr = MCFGPIO_PDDR_TIMER, .podr = MCFGPIO_PODR_TIMER, diff --git a/arch/m68knommu/platform/527x/gpio.c b/arch/m68knommu/platform/527x/gpio.c index 1028142851ac86faba488b43c1273a82bc2c6eec..0b56e19db0f8912ee0341ffef89174d21eb1a3c7 100644 --- a/arch/m68knommu/platform/527x/gpio.c +++ b/arch/m68knommu/platform/527x/gpio.c @@ -31,7 +31,8 @@ static struct mcf_gpio_chip mcf_gpio_chips[] = { .direction_output = mcf_gpio_direction_output, .get = mcf_gpio_get_value, .set = mcf_gpio_set_value, - .ngpio = 8, + .base = 1, + .ngpio = 7, }, .pddr = MCFEPORT_EPDDR, .podr = MCFEPORT_EPDR, @@ -263,7 +264,8 @@ static struct mcf_gpio_chip mcf_gpio_chips[] = { .direction_output = mcf_gpio_direction_output, .get = mcf_gpio_get_value, .set = mcf_gpio_set_value, - .ngpio = 8, + .base = 1, + .ngpio = 7, }, .pddr = MCFEPORT_EPDDR, .podr = MCFEPORT_EPDR, diff --git a/arch/m68knommu/platform/528x/gpio.c b/arch/m68knommu/platform/528x/gpio.c index ec593950696aaf5af2d36b0aa93f791c859c8144..eedaf0adbcd7d949a5f646ebc2ae1a90669f7bc6 100644 --- a/arch/m68knommu/platform/528x/gpio.c +++ b/arch/m68knommu/platform/528x/gpio.c @@ -31,7 +31,7 @@ static struct mcf_gpio_chip mcf_gpio_chips[] = { .get = mcf_gpio_get_value, .set = mcf_gpio_set_value, .base = 1, - .ngpio = 8, + .ngpio = 7, }, .pddr = MCFEPORT_EPDDR, .podr = MCFEPORT_EPDR, diff --git a/arch/m68knommu/platform/coldfire/clk.c b/arch/m68knommu/platform/coldfire/clk.c index 7cdbf445b28f9710dbf689cb6b9dd91b2c848bf8..9f1260c5e2ad5d031b42b54447f141f247f808f4 100644 --- a/arch/m68knommu/platform/coldfire/clk.c +++ b/arch/m68knommu/platform/coldfire/clk.c @@ -9,6 +9,7 @@ /***************************************************************************/ #include +#include #include #include @@ -18,23 +19,27 @@ struct clk *clk_get(struct device *dev, const char *id) { return NULL; } +EXPORT_SYMBOL(clk_get); int clk_enable(struct clk *clk) { return 0; } +EXPORT_SYMBOL(clk_enable); void clk_disable(struct clk *clk) { } +EXPORT_SYMBOL(clk_disable); void clk_put(struct clk *clk) { } +EXPORT_SYMBOL(clk_put); unsigned long clk_get_rate(struct clk *clk) { return MCF_CLK; } - +EXPORT_SYMBOL(clk_get_rate); /***************************************************************************/ diff --git a/arch/m68knommu/platform/coldfire/head.S b/arch/m68knommu/platform/coldfire/head.S index 2b0d73c0cc328c6bb975a9204c731d6b311b4c9d..4b91aa24eb00a6ec95510cfd88b210f99b8dcc05 100644 --- a/arch/m68knommu/platform/coldfire/head.S +++ b/arch/m68knommu/platform/coldfire/head.S @@ -106,6 +106,9 @@ .global _ramvec .global _ramstart .global _ramend +#if defined(CONFIG_UBOOT) +.global _init_sp +#endif /*****************************************************************************/ @@ -124,6 +127,10 @@ _ramstart: .long 0 _ramend: .long 0 +#if defined(CONFIG_UBOOT) +_init_sp: +.long 0 +#endif /*****************************************************************************/ @@ -137,6 +144,9 @@ __HEAD _start: nop /* filler */ movew #0x2700, %sr /* no interrupts */ +#if defined(CONFIG_UBOOT) + movel %sp,_init_sp /* save initial stack pointer */ +#endif /* * Do any platform or board specific setup now. Most boards diff --git a/drivers/serial/mcf.c b/drivers/serial/mcf.c index b44382442bf113f9a2b8769619991805a24f376b..7bb5fee639e36e7859e7c3b8d4207471b9c40d5b 100644 --- a/drivers/serial/mcf.c +++ b/drivers/serial/mcf.c @@ -602,7 +602,7 @@ static int __devinit mcf_probe(struct platform_device *pdev) /****************************************************************************/ -static int mcf_remove(struct platform_device *pdev) +static int __devexit mcf_remove(struct platform_device *pdev) { struct uart_port *port; int i;