diff options
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/Makefile | 8 | ||||
| -rw-r--r-- | arch/mips/cpu/mips32/start.S | 7 | ||||
| -rw-r--r-- | arch/mips/cpu/mips64/start.S | 7 | ||||
| -rw-r--r-- | arch/mips/include/asm/unaligned.h | 2 | ||||
| -rw-r--r-- | arch/mips/lib/Makefile | 3 | ||||
| -rw-r--r-- | arch/mips/lib/board.c | 320 | ||||
| -rw-r--r-- | arch/mips/lib/bootm.c | 23 |
7 files changed, 39 insertions, 331 deletions
diff --git a/arch/mips/Makefile b/arch/mips/Makefile new file mode 100644 index 0000000..1907b57 --- /dev/null +++ b/arch/mips/Makefile @@ -0,0 +1,8 @@ +# +# SPDX-License-Identifier: GPL-2.0+ +# + +head-y := arch/mips/cpu/$(CPU)/start.o + +libs-y += arch/mips/cpu/$(CPU)/ +libs-y += arch/mips/lib/ diff --git a/arch/mips/cpu/mips32/start.S b/arch/mips/cpu/mips32/start.S index 68e59b5..384ea26 100644 --- a/arch/mips/cpu/mips32/start.S +++ b/arch/mips/cpu/mips32/start.S @@ -136,10 +136,11 @@ reset: /* Set up temporary stack */ li sp, CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_INIT_SP_OFFSET + move fp, sp la t9, board_init_f jr t9 - nop + move ra, zero /* * void relocate_code (addr_sp, gd, addr_moni) @@ -155,6 +156,7 @@ reset: .ent relocate_code relocate_code: move sp, a0 # set new stack pointer + move fp, sp move s0, a1 # save gd in s0 move s2, a2 # save destination address in s2 @@ -260,8 +262,9 @@ in_ram: addi t1, 4 move a0, s0 # a0 <-- gd + move a1, s2 la t9, board_init_r jr t9 - move a1, s2 + move ra, zero .end relocate_code diff --git a/arch/mips/cpu/mips64/start.S b/arch/mips/cpu/mips64/start.S index 92954e1..6ff714e 100644 --- a/arch/mips/cpu/mips64/start.S +++ b/arch/mips/cpu/mips64/start.S @@ -130,10 +130,11 @@ reset: /* Set up temporary stack */ dli sp, CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_INIT_SP_OFFSET + move fp, sp dla t9, board_init_f jr t9 - nop + move ra, zero /* * void relocate_code (addr_sp, gd, addr_moni) @@ -149,6 +150,7 @@ reset: .ent relocate_code relocate_code: move sp, a0 # set new stack pointer + move fp, sp move s0, a1 # save gd in s0 move s2, a2 # save destination address in s2 @@ -254,8 +256,9 @@ in_ram: daddi t1, 8 move a0, s0 # a0 <-- gd + move a1, s2 dla t9, board_init_r jr t9 - move a1, s2 + move ra, zero .end relocate_code diff --git a/arch/mips/include/asm/unaligned.h b/arch/mips/include/asm/unaligned.h index 1d5112e..c25a846 100644 --- a/arch/mips/include/asm/unaligned.h +++ b/arch/mips/include/asm/unaligned.h @@ -8,7 +8,7 @@ #ifndef _ASM_MIPS_UNALIGNED_H #define _ASM_MIPS_UNALIGNED_H -#include <compiler.h> +#include <linux/compiler.h> #if defined(__MIPSEB__) #define get_unaligned __get_unaligned_be #define put_unaligned __put_unaligned_be diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile index e483e86..7f9b653 100644 --- a/arch/mips/lib/Makefile +++ b/arch/mips/lib/Makefile @@ -5,9 +5,6 @@ # SPDX-License-Identifier: GPL-2.0+ # -ifndef CONFIG_SYS_GENERIC_BOARD -obj-y += board.o -endif obj-y += io.o obj-$(CONFIG_CMD_BOOTM) += bootm.o diff --git a/arch/mips/lib/board.c b/arch/mips/lib/board.c deleted file mode 100644 index 3feb020..0000000 --- a/arch/mips/lib/board.c +++ /dev/null @@ -1,320 +0,0 @@ -/* - * (C) Copyright 2003 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <command.h> -#include <malloc.h> -#include <serial.h> -#include <stdio_dev.h> -#include <version.h> -#include <net.h> -#include <environment.h> -#include <nand.h> -#include <onenand_uboot.h> -#include <spi.h> - -#ifdef CONFIG_BITBANGMII -#include <miiphy.h> -#endif - -DECLARE_GLOBAL_DATA_PTR; - -ulong monitor_flash_len; - -static char *failed = "*** failed ***\n"; - -int __board_early_init_f(void) -{ - /* - * Nothing to do in this dummy implementation - */ - return 0; -} -int board_early_init_f(void) - __attribute__((weak, alias("__board_early_init_f"))); - -static int init_func_ram(void) -{ -#ifdef CONFIG_BOARD_TYPES - int board_type = gd->board_type; -#else - int board_type = 0; /* use dummy arg */ -#endif - puts("DRAM: "); - - gd->ram_size = initdram(board_type); - if (gd->ram_size > 0) { - print_size(gd->ram_size, "\n"); - return 0; - } - puts(failed); - return 1; -} - -static int display_banner(void) -{ - - printf("\n\n%s\n\n", version_string); - return 0; -} - -#ifndef CONFIG_SYS_NO_FLASH -static void display_flash_config(ulong size) -{ - puts("Flash: "); - print_size(size, "\n"); -} -#endif - -static int init_baudrate(void) -{ - gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE); - return 0; -} - - -/* - * Breath some life into the board... - * - * The first part of initialization is running from Flash memory; - * its main purpose is to initialize the RAM so that we - * can relocate the monitor code to RAM. - */ - -/* - * All attempts to come up with a "common" initialization sequence - * that works for all boards and architectures failed: some of the - * requirements are just _too_ different. To get rid of the resulting - * mess of board dependend #ifdef'ed code we now make the whole - * initialization sequence configurable to the user. - * - * The requirements for any new initalization function is simple: it - * receives a pointer to the "global data" structure as it's only - * argument, and returns an integer return code, where 0 means - * "continue" and != 0 means "fatal error, hang the system". - */ -typedef int (init_fnc_t)(void); - -init_fnc_t *init_sequence[] = { - board_early_init_f, - timer_init, - env_init, /* initialize environment */ - init_baudrate, /* initialize baudrate settings */ - serial_init, /* serial communications setup */ - console_init_f, - display_banner, /* say that we are here */ - checkboard, - init_func_ram, - NULL, -}; - - -void board_init_f(ulong bootflag) -{ - gd_t gd_data, *id; - bd_t *bd; - init_fnc_t **init_fnc_ptr; - ulong addr, addr_sp, len; - ulong *s; - - /* Pointer is writable since we allocated a register for it. - */ - gd = &gd_data; - /* compiler optimization barrier needed for GCC >= 3.4 */ - __asm__ __volatile__("" : : : "memory"); - - memset((void *)gd, 0, sizeof(gd_t)); - - for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { - if ((*init_fnc_ptr)() != 0) - hang(); - } - - /* - * Now that we have DRAM mapped and working, we can - * relocate the code and continue running from DRAM. - */ - addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size; - - /* We can reserve some RAM "on top" here. - */ - - /* round down to next 4 kB limit. - */ - addr &= ~(4096 - 1); - debug("Top of RAM usable for U-Boot at: %08lx\n", addr); - - /* Reserve memory for U-Boot code, data & bss - * round down to next 16 kB limit - */ - len = bss_end() - CONFIG_SYS_MONITOR_BASE; - addr -= len; - addr &= ~(16 * 1024 - 1); - - debug("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr); - - /* Reserve memory for malloc() arena. - */ - addr_sp = addr - TOTAL_MALLOC_LEN; - debug("Reserving %dk for malloc() at: %08lx\n", - TOTAL_MALLOC_LEN >> 10, addr_sp); - - /* - * (permanently) allocate a Board Info struct - * and a permanent copy of the "global" data - */ - addr_sp -= sizeof(bd_t); - bd = (bd_t *)addr_sp; - gd->bd = bd; - debug("Reserving %zu Bytes for Board Info at: %08lx\n", - sizeof(bd_t), addr_sp); - - addr_sp -= sizeof(gd_t); - id = (gd_t *)addr_sp; - debug("Reserving %zu Bytes for Global Data at: %08lx\n", - sizeof(gd_t), addr_sp); - - /* Reserve memory for boot params. - */ - addr_sp -= CONFIG_SYS_BOOTPARAMS_LEN; - bd->bi_boot_params = addr_sp; - debug("Reserving %dk for boot params() at: %08lx\n", - CONFIG_SYS_BOOTPARAMS_LEN >> 10, addr_sp); - - /* - * Finally, we set up a new (bigger) stack. - * - * Leave some safety gap for SP, force alignment on 16 byte boundary - * Clear initial stack frame - */ - addr_sp -= 16; - addr_sp &= ~0xF; - s = (ulong *)addr_sp; - *s-- = 0; - *s-- = 0; - addr_sp = (ulong)s; - debug("Stack Pointer at: %08lx\n", addr_sp); - - /* - * Save local variables to board info struct - */ - bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM */ - bd->bi_memsize = gd->ram_size; /* size of DRAM in bytes */ - - memcpy(id, (void *)gd, sizeof(gd_t)); - - relocate_code(addr_sp, id, addr); - - /* NOTREACHED - relocate_code() does not return */ -} - -/* - * This is the next part if the initialization sequence: we are now - * running from RAM and have a "normal" C environment, i. e. global - * data can be written, BSS has been cleared, the stack size in not - * that critical any more, etc. - */ - -void board_init_r(gd_t *id, ulong dest_addr) -{ -#ifndef CONFIG_SYS_NO_FLASH - ulong size; -#endif - bd_t *bd; - - gd = id; - gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ - - debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr); - - gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE; - - monitor_flash_len = image_copy_end() - dest_addr; - - serial_initialize(); - - bd = gd->bd; - - /* The Malloc area is immediately below the monitor copy in DRAM */ - mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off - - TOTAL_MALLOC_LEN, TOTAL_MALLOC_LEN); - -#ifndef CONFIG_SYS_NO_FLASH - /* configure available FLASH banks */ - size = flash_init(); - display_flash_config(size); - bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; - bd->bi_flashsize = size; - -#if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE - bd->bi_flashoffset = monitor_flash_len; /* reserved area for U-Boot */ -#else - bd->bi_flashoffset = 0; -#endif -#else - bd->bi_flashstart = 0; - bd->bi_flashsize = 0; - bd->bi_flashoffset = 0; -#endif - -#ifdef CONFIG_CMD_NAND - puts("NAND: "); - nand_init(); /* go init the NAND */ -#endif - -#if defined(CONFIG_CMD_ONENAND) - onenand_init(); -#endif - - /* relocate environment function pointers etc. */ - env_relocate(); - -#if defined(CONFIG_PCI) - /* - * Do pci configuration - */ - pci_init(); -#endif - -/** leave this here (after malloc(), environment and PCI are working) **/ - /* Initialize stdio devices */ - stdio_init(); - - jumptable_init(); - - /* Initialize the console (after the relocation and devices init) */ - console_init_r(); -/** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/ - - /* Initialize from environment */ - load_addr = getenv_ulong("loadaddr", 16, load_addr); - -#ifdef CONFIG_CMD_SPI - puts("SPI: "); - spi_init(); /* go init the SPI */ - puts("ready\n"); -#endif - -#if defined(CONFIG_MISC_INIT_R) - /* miscellaneous platform dependent initialisations */ - misc_init_r(); -#endif - -#ifdef CONFIG_BITBANGMII - bb_miiphy_init(); -#endif -#if defined(CONFIG_CMD_NET) - puts("Net: "); - eth_initialize(gd->bd); -#endif - - /* main_loop() can return to retry autoboot, if so just run it again. */ - for (;;) - main_loop(); - - /* NOTREACHED - no way out of command loop except booting */ -} diff --git a/arch/mips/lib/bootm.c b/arch/mips/lib/bootm.c index 71bb0d2..e0722d2 100644 --- a/arch/mips/lib/bootm.c +++ b/arch/mips/lib/bootm.c @@ -6,10 +6,7 @@ */ #include <common.h> -#include <command.h> #include <image.h> -#include <u-boot/zlib.h> -#include <asm/byteorder.h> #include <asm/addrspace.h> DECLARE_GLOBAL_DATA_PTR; @@ -52,6 +49,20 @@ void arch_lmb_reserve(struct lmb *lmb) lmb_reserve(lmb, sp, CONFIG_SYS_SDRAM_BASE + gd->ram_size - sp); } +static int boot_setup_linux(bootm_headers_t *images) +{ + int ret; + ulong rd_len; + + rd_len = images->rd_end - images->rd_start; + ret = boot_ramdisk_high(&images->lmb, images->rd_start, + rd_len, &images->initrd_start, &images->initrd_end); + if (ret) + return ret; + + return 0; +} + static void linux_cmdline_init(void) { linux_argc = 1; @@ -224,6 +235,8 @@ static void boot_jump_linux(bootm_headers_t *images) int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images) { + int ret; + /* No need for those on MIPS */ if (flag & BOOTM_STATE_OS_BD_T) return -1; @@ -243,6 +256,10 @@ int do_bootm_linux(int flag, int argc, char * const argv[], return 0; } + ret = boot_setup_linux(images); + if (ret) + return ret; + boot_cmdline_linux(images); boot_prep_linux(images); boot_jump_linux(images); |