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Diffstat (limited to 'board/esd/ar405/flash.c')
-rw-r--r--board/esd/ar405/flash.c95
1 files changed, 35 insertions, 60 deletions
diff --git a/board/esd/ar405/flash.c b/board/esd/ar405/flash.c
index a651b6f..89af119 100644
--- a/board/esd/ar405/flash.c
+++ b/board/esd/ar405/flash.c
@@ -33,18 +33,19 @@
/*-----------------------------------------------------------------------
* Functions
*/
-static ulong flash_get_size (vu_long *addr, flash_info_t *info);
-static void flash_get_offsets (ulong base, flash_info_t *info);
+static ulong flash_get_size (vu_long * addr, flash_info_t * info);
+static void flash_get_offsets (ulong base, flash_info_t * info);
/*-----------------------------------------------------------------------
*/
unsigned long flash_init (void)
{
- unsigned long size_b0, size_b1;
+ unsigned long size_b0;
int i;
uint pbcr;
- unsigned long base_b0, base_b1;
+ unsigned long base_b0;
+ int size_val = 0;
/* Init: no FLASHes known */
for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
@@ -53,74 +54,48 @@ unsigned long flash_init (void)
/* Static FLASH Bank configuration here - FIXME XXX */
- base_b0 = FLASH_BASE0_PRELIM;
- size_b0 = flash_get_size((vu_long *)base_b0, &flash_info[0]);
+ size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);
if (flash_info[0].flash_id == FLASH_UNKNOWN) {
printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
size_b0, size_b0<<20);
}
- base_b1 = FLASH_BASE1_PRELIM;
- size_b1 = flash_get_size((vu_long *)base_b1, &flash_info[1]);
+ /* Setup offsets */
+ flash_get_offsets (-size_b0, &flash_info[0]);
/* Re-do sizing to get full correct info */
+ mtdcr(ebccfga, pb0cr);
+ pbcr = mfdcr(ebccfgd);
+ mtdcr(ebccfga, pb0cr);
+ base_b0 = -size_b0;
+ switch (size_b0) {
+ case 1 << 20:
+ size_val = 0;
+ break;
+ case 2 << 20:
+ size_val = 1;
+ break;
+ case 4 << 20:
+ size_val = 2;
+ break;
+ case 8 << 20:
+ size_val = 3;
+ break;
+ case 16 << 20:
+ size_val = 4;
+ break;
+ }
+ pbcr = (pbcr & 0x0001ffff) | base_b0 | (size_val << 17);
+ mtdcr(ebccfgd, pbcr);
- if (size_b1)
- {
- mtdcr(ebccfga, pb0cr);
- pbcr = mfdcr(ebccfgd);
- mtdcr(ebccfga, pb0cr);
- base_b1 = -size_b1;
- pbcr = (pbcr & 0x0001ffff) | base_b1 | (((size_b1/1024/1024)-1)<<17);
- mtdcr(ebccfgd, pbcr);
- /* printf("pb1cr = %x\n", pbcr); */
- }
-
- if (size_b0)
- {
- mtdcr(ebccfga, pb1cr);
- pbcr = mfdcr(ebccfgd);
- mtdcr(ebccfga, pb1cr);
- base_b0 = base_b1 - size_b0;
- pbcr = (pbcr & 0x0001ffff) | base_b0 | (((size_b0/1024/1024)-1)<<17);
- mtdcr(ebccfgd, pbcr);
- /* printf("pb0cr = %x\n", pbcr); */
- }
-
- size_b0 = flash_get_size((vu_long *)base_b0, &flash_info[0]);
-
- flash_get_offsets (base_b0, &flash_info[0]);
-
- /* monitor protection ON by default */
+ /* Monitor protection ON by default */
(void)flash_protect(FLAG_PROTECT_SET,
- base_b0+size_b0-monitor_flash_len,
- base_b0+size_b0-1,
+ -CFG_MONITOR_LEN,
+ 0xffffffff,
&flash_info[0]);
- if (size_b1) {
- /* Re-do sizing to get full correct info */
- size_b1 = flash_get_size((vu_long *)base_b1, &flash_info[1]);
-
- flash_get_offsets (base_b1, &flash_info[1]);
-
- /* monitor protection ON by default */
- (void)flash_protect(FLAG_PROTECT_SET,
- base_b1+size_b1-monitor_flash_len,
- base_b1+size_b1-1,
- &flash_info[1]);
- /* monitor protection OFF by default (one is enough) */
- (void)flash_protect(FLAG_PROTECT_CLEAR,
- base_b0+size_b0-monitor_flash_len,
- base_b0+size_b0-1,
- &flash_info[0]);
- } else {
- flash_info[1].flash_id = FLASH_UNKNOWN;
- flash_info[1].sector_count = -1;
- }
-
flash_info[0].size = size_b0;
- flash_info[1].size = size_b1;
- return (size_b0 + size_b1);
+ return (size_b0);
}