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https://github.com/brain-hackers/u-boot-brain
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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
111 lines
2.8 KiB
C
111 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2003
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* (c) Copyright 2008 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
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* (c) Copyright 2008 Renesas Solutions Corp.
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*/
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#include <common.h>
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#include <command.h>
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#include <asm/byteorder.h>
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#include <asm/zimage.h>
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#ifdef CONFIG_SYS_DEBUG
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static void hexdump(unsigned char *buf, int len)
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{
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int i;
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for (i = 0; i < len; i++) {
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if ((i % 16) == 0)
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printf("%s%08x: ", i ? "\n" : "",
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(unsigned int)&buf[i]);
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printf("%02x ", buf[i]);
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}
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printf("\n");
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}
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#endif
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#ifdef CONFIG_SH_SDRAM_OFFSET
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#define GET_INITRD_START(initrd, linux) (initrd - linux + CONFIG_SH_SDRAM_OFFSET)
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#else
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#define GET_INITRD_START(initrd, linux) (initrd - linux)
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#endif
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static void set_sh_linux_param(unsigned long param_addr, unsigned long data)
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{
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*(unsigned long *)(param_addr) = data;
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}
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static unsigned long sh_check_cmd_arg(char *cmdline, char *key, int base)
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{
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unsigned long val = 0;
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char *p = strstr(cmdline, key);
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if (p) {
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p += strlen(key);
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val = simple_strtol(p, NULL, base);
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}
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return val;
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}
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int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
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{
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/* Linux kernel load address */
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void (*kernel) (void) = (void (*)(void))images->ep;
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/* empty_zero_page */
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unsigned char *param
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= (unsigned char *)image_get_load(images->legacy_hdr_os);
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/* Linux kernel command line */
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char *cmdline = (char *)param + COMMAND_LINE;
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/* PAGE_SIZE */
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unsigned long size = images->ep - (unsigned long)param;
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char *bootargs = env_get("bootargs");
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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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/* Clear zero page */
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memset(param, 0, size);
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/* Set commandline */
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strcpy(cmdline, bootargs);
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/* Initrd */
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if (images->rd_start || images->rd_end) {
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unsigned long ramdisk_flags = 0;
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int val = sh_check_cmd_arg(bootargs, CMD_ARG_RD_PROMPT, 10);
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if (val == 1)
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ramdisk_flags |= RD_PROMPT;
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else
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ramdisk_flags &= ~RD_PROMPT;
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val = sh_check_cmd_arg(bootargs, CMD_ARG_RD_DOLOAD, 10);
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if (val == 1)
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ramdisk_flags |= RD_DOLOAD;
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else
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ramdisk_flags &= ~RD_DOLOAD;
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set_sh_linux_param((unsigned long)param + MOUNT_ROOT_RDONLY, 0x0001);
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set_sh_linux_param((unsigned long)param + RAMDISK_FLAGS, ramdisk_flags);
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set_sh_linux_param((unsigned long)param + ORIG_ROOT_DEV, 0x0200);
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set_sh_linux_param((unsigned long)param + LOADER_TYPE, 0x0001);
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set_sh_linux_param((unsigned long)param + INITRD_START,
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GET_INITRD_START(images->rd_start, CONFIG_SYS_SDRAM_BASE));
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set_sh_linux_param((unsigned long)param + INITRD_SIZE,
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images->rd_end - images->rd_start);
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}
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/* Boot kernel */
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kernel();
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/* does not return */
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return 1;
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}
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