leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Reduce OneNAND IPL common code

Browse Source 
OneNAND IPL has common codes for RAM init, load data, and jump to 2nd
bootloader, but it's common code used about 300~400 bytes. So board
specific codes, such as lowlevel_init, can't has enough code. It make
a difficult to implement OneNAND IPL.

his patch make this common code as small as possible. and give
lowlevel_init can have more codes.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Kyungmin Park 2009-03-03 09:05:53 +09:00 committed by Scott Wood
parent 16f2f5a351
commit 196c74311f
2 changed files with 2 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
onenand_ipl/onenand_boot.c
View File

@ -28,46 +28,16 @@
#include "onenand_ipl.h"
#ifdef CONFIG_SYS_PRINTF
int print_info(void)
{
printf(XLOADER_VERSION);
return 0;
}
#endif
typedef int (init_fnc_t)(void);
init_fnc_t *init_sequence[] = {
board_init, /* basic board dependent setup */
#ifdef CONFIG_SYS_PRINTF
serial_init, /* serial communications setup */
print_info,
#endif
NULL,
};
void start_oneboot(void)
{
init_fnc_t **init_fnc_ptr;
uchar *buf;
for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
if ((*init_fnc_ptr)() != 0)
hang();
}
buf = (uchar *) CONFIG_SYS_LOAD_ADDR;
if (!onenand_read_block0(buf))
buf += ONENAND_BLOCK_SIZE;
onenand_read_block0(buf);
if (buf == (uchar *)CONFIG_SYS_LOAD_ADDR)
hang();
/* go run U-Boot and never return */
printf("Starting OS Bootloader...\n");
((init_fnc_t *)CONFIG_SYS_LOAD_ADDR)();
/* should never come here */
@ -75,7 +45,5 @@ void start_oneboot(void)
void hang(void)
{
/* if board_hang() returns, hange here */
printf("X-Loader hangs\n");
for (;;);
for (;;);
}

6
onenand_ipl/onenand_ipl.h
View File

@ -23,12 +23,6 @@
#include <linux/mtd/onenand_regs.h>
#define ONENAND_BLOCK_SIZE 2048
#ifndef CONFIG_SYS_PRINTF
#define printf(format, args...)
#endif
#define onenand_readw(a) readw(a)
#define onenand_writew(v, a) writew(v, a)