qiurui
/
rv1126-uboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

rockchip: implement board_lmb_reserve() 

Using last bi_dram[...] to initialize "bootm_low" and "bootm_mapsize".
This makes lmb_alloc_base() always alloc from tail of sdram.
If we don't assign it, bi_dram[0] is used by default and it may cause
lmb_alloc_base() fail when bi_dram[0] range is small.

Change-Id: I13c2c2d6135e26e647dcfde4c173d896c800fea5
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
This commit is contained in:
Joseph Chen 2018-11-02 11:35:19 +08:00 committed by Jianhong Chen
parent 9ebaf67ccd
commit 2c6a058b7e
2 changed files with 42 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
arch/arm/mach-rockchip/board.c
View File

@ -275,6 +275,47 @@ void enable_caches(void)
dcache_enable();
}
/*
* Using last bi_dram[...] to initialize "bootm_low" and "bootm_mapsize".
* This makes lmb_alloc_base() always alloc from tail of sdram.
* If we don't assign it, bi_dram[0] is used by default and it may cause
* lmb_alloc_base() fail when bi_dram[0] range is small.
*/
void board_lmb_reserve(struct lmb *lmb)
{
u64 start, size;
char bootm_low[32];
char bootm_mapsize[32];
int i;
for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
if (!gd->bd->bi_dram[i].size)
break;
}
start = gd->bd->bi_dram[i - 1].start;
size = gd->bd->bi_dram[i - 1].size;
/*
* 32-bit kernel: ramdisk/fdt shouldn't be loaded to highmem area, otherwise
* "Unable to handle kernel paging request at virtual address ...".
* If so, using low address region, i.e before tustos region(132MB).
*/
#ifndef ARM64
if (start >= ((u64)CONFIG_SYS_SDRAM_BASE + SZ_768M)) {
start = gd->bd->bi_dram[i - 2].start;
size = gd->bd->bi_dram[i - 2].size;
}
if ((start + size) > ((u64)CONFIG_SYS_SDRAM_BASE + SZ_768M))
size = (u64)CONFIG_SYS_SDRAM_BASE + SZ_768M - start;
#endif
sprintf(bootm_low, "0x%llx", start);
sprintf(bootm_mapsize, "0x%llx", size);
env_set("bootm_low", bootm_low);
env_set("bootm_mapsize", bootm_mapsize);
}
#ifdef CONFIG_ROCKCHIP_PRELOADER_SERIAL
int board_init_f_init_serial(void)
{

1
include/linux/sizes.h
View File

@ -40,6 +40,7 @@
#define SZ_128M 0x08000000
#define SZ_256M 0x10000000
#define SZ_512M 0x20000000
#define SZ_768M 0x30000000
#define SZ_1G 0x40000000
#define SZ_2G 0x80000000