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microblaze: Fix bd_info pointer 

Patch "Replace CONFIG_SYS_GBL_DATA_SIZE by auto-generated value"
(sha1: 25ddd1fb0a)
introduce GENERATED_GBL_DATA_SIZE which is sizeof aligned gd_t
(currently 0x40).
Microblaze configs used 0x40(128) because this place also contained
board info structure which lies on the top of ram.

U-Boot is placed to the top of the ram (for example 0xd7ffffff)
and bd structure was moved out of ram.

This patch is fixing this scheme with GENERATED_BD_INFO_SIZE
which swap global data and board info structures.

For example:
Current: gd 0xd7ffffc0, bd 0xd8000000
Fixed:   gd 0xd7ffffc0, bd 0xd7ffff90

Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Michal Simek 2010-12-21 09:32:44 +01:00
parent 68e99e54e9
commit 1020286ef4
2 changed files with 9 additions and 7 deletions
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8
arch/microblaze/lib/board.c
View File

@ -90,16 +90,18 @@ void board_init (void)
{
bd_t *bd;
init_fnc_t **init_fnc_ptr;
gd = (gd_t *) CONFIG_SYS_GBL_DATA_OFFSET;
gd = (gd_t *) (CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET);
bd = (bd_t *) (CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET \
- GENERATED_BD_INFO_SIZE);
char *s;
#if defined(CONFIG_CMD_FLASH)
ulong flash_size = 0;
#endif
asm ("nop"); /* FIXME gd is not initialize - wait */
memset ((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
gd->bd = (bd_t *) (gd + 1); /* At end of global data */
memset ((void *)bd, 0, GENERATED_BD_INFO_SIZE);
gd->bd = bd;
gd->baudrate = CONFIG_BAUDRATE;
bd = gd->bd;
bd->bi_baudrate = CONFIG_BAUDRATE;
bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;

8
include/configs/microblaze-generic.h
View File

@ -137,14 +137,14 @@
/* global pointer */
/* start of global data */
#define CONFIG_SYS_GBL_DATA_OFFSET \
(CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_SDRAM_SIZE \
- GENERATED_GBL_DATA_SIZE)
(CONFIG_SYS_SDRAM_SIZE - GENERATED_GBL_DATA_SIZE)
/* monitor code */
#define SIZE 0x40000
#define CONFIG_SYS_MONITOR_LEN (SIZE - GENERATED_GBL_DATA_SIZE)
#define CONFIG_SYS_MONITOR_LEN SIZE
#define CONFIG_SYS_MONITOR_BASE \
(CONFIG_SYS_GBL_DATA_OFFSET - CONFIG_SYS_MONITOR_LEN)
(CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET \
- CONFIG_SYS_MONITOR_LEN - GENERATED_BD_INFO_SIZE)
#define CONFIG_SYS_MONITOR_END \
(CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)
#define CONFIG_SYS_MALLOC_LEN SIZE