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MIPS: ath79: Use the firmware lib to parse the kernel command line 

No need to duplicate code that is available in the firmware library.
It also give us access to the firmware environment which is needed
to read the initrd address and size.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8353/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Alban Bedel 2014-11-07 12:44:35 +01:00 committed by Ralf Baechle
parent d6a4c72ae4
commit 11a0f40bc9
1 changed files with 2 additions and 28 deletions
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30
arch/mips/ath79/prom.c
View File

@ -16,39 +16,13 @@
#include <asm/bootinfo.h>
#include <asm/addrspace.h>
#include <asm/fw/fw.h>
#include "common.h"
static inline int is_valid_ram_addr(void *addr)
{
if (((u32) addr > KSEG0) &&
((u32) addr < (KSEG0 + ATH79_MEM_SIZE_MAX)))
return 1;
if (((u32) addr > KSEG1) &&
((u32) addr < (KSEG1 + ATH79_MEM_SIZE_MAX)))
return 1;
return 0;
}
static __init void ath79_prom_init_cmdline(int argc, char **argv)
{
int i;
if (!is_valid_ram_addr(argv))
return;
for (i = 0; i < argc; i++)
if (is_valid_ram_addr(argv[i])) {
strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
strlcat(arcs_cmdline, argv[i], sizeof(arcs_cmdline));
}
}
void __init prom_init(void)
{
ath79_prom_init_cmdline(fw_arg0, (char **)fw_arg1);
fw_init_cmdline();
}
void __init prom_free_prom_memory(void)