diff options
Diffstat (limited to 'arch/avr32/lib/bootm.c')
| -rw-r--r-- | arch/avr32/lib/bootm.c | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/arch/avr32/lib/bootm.c b/arch/avr32/lib/bootm.c deleted file mode 100644 index 342b9e2c1c..0000000000 --- a/arch/avr32/lib/bootm.c +++ /dev/null @@ -1,213 +0,0 @@ -/* - * Copyright (C) 2004-2006 Atmel Corporation - * - * SPDX-License-Identifier: GPL-2.0+ - */ -#include <common.h> -#include <command.h> -#include <image.h> -#include <u-boot/zlib.h> -#include <asm/byteorder.h> -#include <asm/arch/addrspace.h> -#include <asm/io.h> -#include <asm/setup.h> -#include <asm/arch/clk.h> - -DECLARE_GLOBAL_DATA_PTR; - -/* CPU-specific hook to allow flushing of caches, etc. */ -extern void prepare_to_boot(void); - -static struct tag *setup_start_tag(struct tag *params) -{ - params->hdr.tag = ATAG_CORE; - params->hdr.size = tag_size(tag_core); - - params->u.core.flags = 0; - params->u.core.pagesize = 4096; - params->u.core.rootdev = 0; - - return tag_next(params); -} - -static struct tag *setup_memory_tags(struct tag *params) -{ - bd_t *bd = gd->bd; - int i; - - for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { - params->hdr.tag = ATAG_MEM; - params->hdr.size = tag_size(tag_mem_range); - - params->u.mem_range.addr = bd->bi_dram[i].start; - params->u.mem_range.size = bd->bi_dram[i].size; - - params = tag_next(params); - } - - return params; -} - -static struct tag *setup_commandline_tag(struct tag *params, char *cmdline) -{ - if (!cmdline) - return params; - - /* eat leading white space */ - while (*cmdline == ' ') cmdline++; - - /* - * Don't include tags for empty command lines; let the kernel - * use its default command line. - */ - if (*cmdline == '\0') - return params; - - params->hdr.tag = ATAG_CMDLINE; - params->hdr.size = - (sizeof (struct tag_header) + strlen(cmdline) + 1 + 3) >> 2; - strcpy(params->u.cmdline.cmdline, cmdline); - - return tag_next(params); -} - -static struct tag *setup_ramdisk_tag(struct tag *params, - unsigned long rd_start, - unsigned long rd_end) -{ - if (rd_start == rd_end) - return params; - - params->hdr.tag = ATAG_RDIMG; - params->hdr.size = tag_size(tag_mem_range); - - params->u.mem_range.addr = rd_start; - params->u.mem_range.size = rd_end - rd_start; - - return tag_next(params); -} - -static struct tag *setup_clock_tags(struct tag *params) -{ - params->hdr.tag = ATAG_CLOCK; - params->hdr.size = tag_size(tag_clock); - params->u.clock.clock_id = ACLOCK_BOOTCPU; - params->u.clock.clock_flags = 0; - params->u.clock.clock_hz = gd->arch.cpu_hz; - -#ifdef CONFIG_AT32AP7000 - /* - * New kernels don't need this, but we should be backwards - * compatible for a while... - */ - params = tag_next(params); - - params->hdr.tag = ATAG_CLOCK; - params->hdr.size = tag_size(tag_clock); - params->u.clock.clock_id = ACLOCK_HSB; - params->u.clock.clock_flags = 0; - params->u.clock.clock_hz = get_hsb_clk_rate(); -#endif - - return tag_next(params); -} - -static struct tag *setup_ethernet_tag(struct tag *params, - char *addr, int index) -{ - char *s, *e; - int i; - - params->hdr.tag = ATAG_ETHERNET; - params->hdr.size = tag_size(tag_ethernet); - - params->u.ethernet.mac_index = index; - params->u.ethernet.mii_phy_addr = gd->bd->bi_phy_id[index]; - - s = addr; - for (i = 0; i < 6; i++) { - params->u.ethernet.hw_address[i] = simple_strtoul(s, &e, 16); - s = e + 1; - } - - return tag_next(params); -} - -static struct tag *setup_ethernet_tags(struct tag *params) -{ - char name[16] = "ethaddr"; - char *addr; - int i = 0; - - do { - addr = getenv(name); - if (addr) - params = setup_ethernet_tag(params, addr, i); - sprintf(name, "eth%daddr", ++i); - } while (i < 4); - - return params; -} - -static struct tag *setup_boardinfo_tag(struct tag *params) -{ - params->hdr.tag = ATAG_BOARDINFO; - params->hdr.size = tag_size(tag_boardinfo); - - params->u.boardinfo.board_number = gd->bd->bi_board_number; - - return tag_next(params); -} - -static void setup_end_tag(struct tag *params) -{ - params->hdr.tag = ATAG_NONE; - params->hdr.size = 0; -} - -int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images) -{ - void (*theKernel)(int magic, void *tagtable); - struct tag *params, *params_start; - char *commandline = getenv("bootargs"); - - /* - * allow the PREP bootm subcommand, it is required for bootm to work - * - * TODO: Andreas Bießmann <andreas@biessmann.org> refactor the - * do_bootm_linux() for avr32 - */ - if (flag & BOOTM_STATE_OS_PREP) - return 0; - - if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) - return 1; - - theKernel = (void *)images->ep; - - bootstage_mark(BOOTSTAGE_ID_RUN_OS); - - params = params_start = (struct tag *)gd->bd->bi_boot_params; - params = setup_start_tag(params); - params = setup_memory_tags(params); - if (images->rd_start) { - params = setup_ramdisk_tag(params, - PHYSADDR(images->rd_start), - PHYSADDR(images->rd_end)); - } - params = setup_commandline_tag(params, commandline); - params = setup_clock_tags(params); - params = setup_ethernet_tags(params); - params = setup_boardinfo_tag(params); - setup_end_tag(params); - - printf("\nStarting kernel at %p (params at %p)...\n\n", - theKernel, params_start); - - prepare_to_boot(); - - theKernel(ATAG_MAGIC, params_start); - /* does not return */ - - return 1; -} |