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/*
* (C) Copyright 2010
* Renesas Solutions Corp.
* Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
/*
* Linux SuperH zImage loading and boot
*/
#include <common.h>
#include <asm/io.h>
#include <asm/zimage.h>
int do_sh_zimageboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong (*zboot_entry)(int, char * const []) = NULL;
char *s0, *s1;
unsigned char *param = NULL;
char *cmdline;
char *bootargs;
disable_interrupts();
if (argc >= 3) {
/* argv[1] holds the address of the zImage */
s0 = argv[1];
/* argv[2] holds the address of zero page */
s1 = argv[2];
} else {
goto exit;
}
if (s0)
zboot_entry = (ulong (*)(int, char * const []))simple_strtoul(s0, NULL, 16);
/* empty_zero_page */
if (s1)
param = (unsigned char*)simple_strtoul(s1, NULL, 16);
/* Linux kernel command line */
cmdline = (char *)param + COMMAND_LINE;
bootargs = getenv("bootargs");
/* Clear zero page */
memset(param, 0, 0x1000);
/* Set commandline */
strcpy(cmdline, bootargs);
/* Boot */
zboot_entry(0, NULL);
exit:
return -1;
}
U_BOOT_CMD(
zimageboot, 3, 0, do_sh_zimageboot,
"Boot zImage for Renesas SH",
""
);
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