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https://github.com/brain-hackers/u-boot-brain
synced 2024-09-10 14:53:26 +09:00
![Simon Glass](/assets/img/avatar_default.png)
At present panic() is in the vsprintf.h header file. That does not seem like an obvious choice for hang(), even though it relates to panic(). So let's put hang() in its own header. Signed-off-by: Simon Glass <sjg@chromium.org> [trini: Migrate a few more files] Signed-off-by: Tom Rini <trini@konsulko.com>
243 lines
5.6 KiB
C
243 lines
5.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2011 Andes Technology Corporation
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* Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
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* Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
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*/
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#include <common.h>
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#include <command.h>
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#include <env.h>
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#include <hang.h>
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#include <image.h>
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#include <u-boot/zlib.h>
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#include <asm/byteorder.h>
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#include <asm/bootm.h>
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DECLARE_GLOBAL_DATA_PTR;
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#if defined(CONFIG_SETUP_MEMORY_TAGS) || \
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defined(CONFIG_CMDLINE_TAG) || \
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defined(CONFIG_INITRD_TAG) || \
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defined(CONFIG_SERIAL_TAG) || \
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defined(CONFIG_REVISION_TAG)
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static void setup_start_tag(bd_t *bd);
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# ifdef CONFIG_SETUP_MEMORY_TAGS
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static void setup_memory_tags(bd_t *bd);
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# endif
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static void setup_commandline_tag(bd_t *bd, char *commandline);
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# ifdef CONFIG_INITRD_TAG
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static void setup_initrd_tag(bd_t *bd, ulong initrd_start, ulong initrd_end);
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# endif
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static void setup_end_tag(bd_t *bd);
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static struct tag *params;
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#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */
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int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
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{
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bd_t *bd = gd->bd;
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char *s;
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int machid = bd->bi_arch_number;
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void (*theKernel)(int zero, int arch, uint params);
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#ifdef CONFIG_CMDLINE_TAG
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char *commandline = env_get("bootargs");
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#endif
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/*
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* allow the PREP bootm subcommand, it is required for bootm to work
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*/
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if (flag & BOOTM_STATE_OS_PREP)
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return 0;
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if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
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return 1;
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theKernel = (void (*)(int, int, uint))images->ep;
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s = env_get("machid");
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if (s) {
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machid = simple_strtoul(s, NULL, 16);
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printf("Using machid 0x%x from environment\n", machid);
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}
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bootstage_mark(BOOTSTAGE_ID_RUN_OS);
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debug("## Transferring control to Linux (at address %08lx) ...\n",
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(ulong)theKernel);
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if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len) {
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#ifdef CONFIG_OF_LIBFDT
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debug("using: FDT\n");
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if (image_setup_linux(images)) {
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printf("FDT creation failed! hanging...");
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hang();
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}
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#endif
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} else if (BOOTM_ENABLE_TAGS) {
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#if defined(CONFIG_SETUP_MEMORY_TAGS) || \
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defined(CONFIG_CMDLINE_TAG) || \
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defined(CONFIG_INITRD_TAG) || \
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defined(CONFIG_SERIAL_TAG) || \
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defined(CONFIG_REVISION_TAG)
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setup_start_tag(bd);
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#ifdef CONFIG_SERIAL_TAG
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setup_serial_tag(¶ms);
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#endif
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#ifdef CONFIG_REVISION_TAG
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setup_revision_tag(¶ms);
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#endif
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#ifdef CONFIG_SETUP_MEMORY_TAGS
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setup_memory_tags(bd);
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#endif
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#ifdef CONFIG_CMDLINE_TAG
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setup_commandline_tag(bd, commandline);
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#endif
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#ifdef CONFIG_INITRD_TAG
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if (images->rd_start && images->rd_end)
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setup_initrd_tag(bd, images->rd_start, images->rd_end);
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#endif
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setup_end_tag(bd);
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#endif
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/* we assume that the kernel is in place */
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printf("\nStarting kernel ...\n\n");
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#ifdef CONFIG_USB_DEVICE
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{
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extern void udc_disconnect(void);
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udc_disconnect();
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}
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#endif
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}
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cleanup_before_linux();
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if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len)
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theKernel(0, machid, (unsigned long)images->ft_addr);
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else
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theKernel(0, machid, bd->bi_boot_params);
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/* does not return */
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return 1;
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}
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#if defined(CONFIG_SETUP_MEMORY_TAGS) || \
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defined(CONFIG_CMDLINE_TAG) || \
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defined(CONFIG_INITRD_TAG) || \
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defined(CONFIG_SERIAL_TAG) || \
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defined(CONFIG_REVISION_TAG)
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static void setup_start_tag(bd_t *bd)
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{
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params = (struct tag *)bd->bi_boot_params;
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params->hdr.tag = ATAG_CORE;
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params->hdr.size = tag_size(tag_core);
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params->u.core.flags = 0;
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params->u.core.pagesize = 0;
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params->u.core.rootdev = 0;
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params = tag_next(params);
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}
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#ifdef CONFIG_SETUP_MEMORY_TAGS
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static void setup_memory_tags(bd_t *bd)
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{
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int i;
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for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
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params->hdr.tag = ATAG_MEM;
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params->hdr.size = tag_size(tag_mem32);
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params->u.mem.start = bd->bi_dram[i].start;
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params->u.mem.size = bd->bi_dram[i].size;
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params = tag_next(params);
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}
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}
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#endif /* CONFIG_SETUP_MEMORY_TAGS */
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static void setup_commandline_tag(bd_t *bd, char *commandline)
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{
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char *p;
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if (!commandline)
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return;
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/* eat leading white space */
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for (p = commandline; *p == ' '; p++)
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;
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/* skip non-existent command lines so the kernel will still
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* use its default command line.
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*/
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if (*p == '\0')
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return;
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params->hdr.tag = ATAG_CMDLINE;
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params->hdr.size =
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(sizeof(struct tag_header) + strlen(p) + 1 + 4) >> 2;
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strcpy(params->u.cmdline.cmdline, p)
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;
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params = tag_next(params);
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}
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#ifdef CONFIG_INITRD_TAG
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static void setup_initrd_tag(bd_t *bd, ulong initrd_start, ulong initrd_end)
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{
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/* an ATAG_INITRD node tells the kernel where the compressed
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* ramdisk can be found. ATAG_RDIMG is a better name, actually.
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*/
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params->hdr.tag = ATAG_INITRD2;
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params->hdr.size = tag_size(tag_initrd);
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params->u.initrd.start = initrd_start;
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params->u.initrd.size = initrd_end - initrd_start;
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params = tag_next(params);
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}
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#endif /* CONFIG_INITRD_TAG */
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#ifdef CONFIG_SERIAL_TAG
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void setup_serial_tag(struct tag **tmp)
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{
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struct tag *params = *tmp;
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struct tag_serialnr serialnr;
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void get_board_serial(struct tag_serialnr *serialnr);
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get_board_serial(&serialnr);
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params->hdr.tag = ATAG_SERIAL;
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params->hdr.size = tag_size(tag_serialnr);
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params->u.serialnr.low = serialnr.low;
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params->u.serialnr.high = serialnr.high;
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params = tag_next(params);
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*tmp = params;
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}
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#endif
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#ifdef CONFIG_REVISION_TAG
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void setup_revision_tag(struct tag **in_params)
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{
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u32 rev = 0;
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u32 get_board_rev(void);
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rev = get_board_rev();
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params->hdr.tag = ATAG_REVISION;
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params->hdr.size = tag_size(tag_revision);
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params->u.revision.rev = rev;
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params = tag_next(params);
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}
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#endif /* CONFIG_REVISION_TAG */
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static void setup_end_tag(bd_t *bd)
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{
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params->hdr.tag = ATAG_NONE;
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params->hdr.size = 0;
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}
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#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */
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