mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-06 05:04:26 +00:00
0060517ae0
There are a number of places where U-Boot intentionally and legally accesses physical address 0x0000, for example when installing exception vectors on systems where these are located in low memory. Add "cppcheck-suppress nullPointer" comments to silence cppcheck where this is intentional and legal. Signed-off-by: Wolfgang Denk <wd@denx.de>
65 lines
1.2 KiB
C
65 lines
1.2 KiB
C
/*
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* (C) Copyright 2010
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* Renesas Solutions Corp.
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* Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/*
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* Linux SuperH zImage loading and boot
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/zimage.h>
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int do_sh_zimageboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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ulong (*zboot_entry)(int, char * const []) = NULL;
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char *s0, *s1;
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unsigned char *param = NULL;
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char *cmdline;
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char *bootargs;
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disable_interrupts();
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if (argc >= 3) {
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/* argv[1] holds the address of the zImage */
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s0 = argv[1];
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/* argv[2] holds the address of zero page */
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s1 = argv[2];
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} else {
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goto exit;
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}
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if (s0)
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zboot_entry = (ulong (*)(int, char * const []))simple_strtoul(s0, NULL, 16);
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/* empty_zero_page */
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if (s1)
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param = (unsigned char*)simple_strtoul(s1, NULL, 16);
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/* Linux kernel command line */
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cmdline = (char *)param + COMMAND_LINE;
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bootargs = getenv("bootargs");
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/* Clear zero page */
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/* cppcheck-suppress nullPointer */
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memset(param, 0, 0x1000);
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/* Set commandline */
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strcpy(cmdline, bootargs);
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/* Boot */
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zboot_entry(0, NULL);
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exit:
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return -1;
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}
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U_BOOT_CMD(
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zimageboot, 3, 0, do_sh_zimageboot,
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"Boot zImage for Renesas SH",
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""
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);
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