projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 45ce6f9e NI |
1 | /* |
| 2 | * (C) Copyright 2010 | |
| 3 | * Renesas Solutions Corp. | |
| 4 | * Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> | |
| 5 | * | |
| 1a459660 | 6 | * SPDX-License-Identifier: GPL-2.0+ |
| 45ce6f9e NI |
7 | */ |
| 8 | ||
| 9 | /* | |
| 10 | * Linux SuperH zImage loading and boot | |
| 11 | */ | |
| 12 | ||
| 13 | #include <common.h> | |
| 14 | #include <asm/io.h> | |
| 15 | #include <asm/zimage.h> | |
| 16 | ||
| 17 | int do_sh_zimageboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
| 18 | { | |
| 19 | ulong (*zboot_entry)(int, char * const []) = NULL; | |
| 20 | char *s0, *s1; | |
| 21 | unsigned char *param = NULL; | |
| 22 | char *cmdline; | |
| 23 | char *bootargs; | |
| 24 | ||
| 25 | disable_interrupts(); | |
| 26 | ||
| 27 | if (argc >= 3) { | |
| 28 | /* argv[1] holds the address of the zImage */ | |
| 29 | s0 = argv[1]; | |
| 30 | /* argv[2] holds the address of zero page */ | |
| 31 | s1 = argv[2]; | |
| 32 | } else { | |
| 33 | goto exit; | |
| 34 | } | |
| 35 | ||
| 36 | if (s0) | |
| 37 | zboot_entry = (ulong (*)(int, char * const []))simple_strtoul(s0, NULL, 16); | |
| 38 | ||
| 39 | /* empty_zero_page */ | |
| 40 | if (s1) | |
| 41 | param = (unsigned char*)simple_strtoul(s1, NULL, 16); | |
| 42 | ||
| 43 | /* Linux kernel command line */ | |
| 44 | cmdline = (char *)param + COMMAND_LINE; | |
| 45 | bootargs = getenv("bootargs"); | |
| 46 | ||
| 47 | /* Clear zero page */ | |
| 0060517a | 48 | /* cppcheck-suppress nullPointer */ |
| 45ce6f9e NI |
49 | memset(param, 0, 0x1000); |
| 50 | ||
| 51 | /* Set commandline */ | |
| 52 | strcpy(cmdline, bootargs); | |
| 53 | ||
| 54 | /* Boot */ | |
| 55 | zboot_entry(0, NULL); | |
| 56 | ||
| 57 | exit: | |
| 58 | return -1; | |
| 59 | } | |
| 60 | ||
| 61 | U_BOOT_CMD( | |
| 62 | zimageboot, 3, 0, do_sh_zimageboot, | |
| 63 | "Boot zImage for Renesas SH", | |
| 64 | "" | |
| 65 | ); |