Add a common get_ram_size() function and modify the the
board-specific files to invoke that common implementation.
diff --git a/board/lantec/lantec.c b/board/lantec/lantec.c
index 655c951..aa96a16 100644
--- a/board/lantec/lantec.c
+++ b/board/lantec/lantec.c
@@ -39,13 +39,12 @@
#define _NOT_USED_ 0xFFFFFFFF
-const uint sdram_table[] =
-{
+const uint sdram_table[] = {
/*
* Single Read. (Offset 0 in UPMA RAM)
*/
0x1f07fc04, 0xeeaefc04, 0x11adfc04, 0xefbbbc00,
- 0x1ff77c47, /* last */
+ 0x1ff77c47, /* last */
/*
* SDRAM Initialization (offset 5 in UPMA RAM)
*
@@ -54,39 +53,39 @@
* sequence, which is executed by a RUN command.
*
*/
- 0x1ff77c35, 0xefeabc34, 0x1fb57c35, /* last */
+ 0x1ff77c35, 0xefeabc34, 0x1fb57c35, /* last */
/*
* Burst Read. (Offset 8 in UPMA RAM)
*/
0x1f07fc04, 0xeeaefc04, 0x10adfc04, 0xf0affc00,
- 0xf0affc00, 0xf1affc00, 0xefbbbc00, 0x1ff77c47, /* last */
+ 0xf0affc00, 0xf1affc00, 0xefbbbc00, 0x1ff77c47, /* last */
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Single Write. (Offset 18 in UPMA RAM)
*/
- 0x1f27fc04, 0xeeaebc00, 0x01b93c04, 0x1ff77c47, /* last */
+ 0x1f27fc04, 0xeeaebc00, 0x01b93c04, 0x1ff77c47, /* last */
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Burst Write. (Offset 20 in UPMA RAM)
*/
0x1f07fc04, 0xeeaebc00, 0x10ad7c00, 0xf0affc00,
- 0xf0affc00, 0xe1bbbc04, 0x1ff77c47, /* last */
- _NOT_USED_,
+ 0xf0affc00, 0xe1bbbc04, 0x1ff77c47, /* last */
+ _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Refresh (Offset 30 in UPMA RAM)
*/
0x1ff5fc84, 0xfffffc04, 0xfffffc04, 0xfffffc04,
- 0xfffffc84, 0xfffffc07, 0xfffffc07, /* last */
- _NOT_USED_,
+ 0xfffffc84, 0xfffffc07, 0xfffffc07, /* last */
+ _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Exception. (Offset 3c in UPMA RAM)
*/
- 0x7ffffc07, /* last */
- _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ 0x7ffffc07, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
};
/* ------------------------------------------------------------------------- */
@@ -104,7 +103,7 @@
int checkboard (void)
{
- printf("Board: Lantec special edition rev.%d\n", CONFIG_LANTEC);
+ printf ("Board: Lantec special edition rev.%d\n", CONFIG_LANTEC);
return 0;
}
@@ -112,7 +111,7 @@
long int initdram (int board_type)
{
- volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
volatile memctl8xx_t *memctl = &immap->im_memctl;
long int size_b0;
int i;
@@ -120,16 +119,17 @@
/*
* Configure UPMA for SDRAM
*/
- upmconfig(UPMA, (uint *)sdram_table, sizeof(sdram_table)/sizeof(uint));
+ upmconfig (UPMA, (uint *) sdram_table,
+ sizeof (sdram_table) / sizeof (uint));
- memctl->memc_mptpr = CFG_MPTPR_1BK_8K /* XXX CFG_MPTPR XXX */;
+ memctl->memc_mptpr = CFG_MPTPR_1BK_8K /* XXX CFG_MPTPR XXX */ ;
/* burst length=4, burst type=sequential, CAS latency=2 */
memctl->memc_mar = 0x00000088;
/*
- * Map controller bank 3 to the SDRAM bank at preliminary address.
- */
+ * Map controller bank 3 to the SDRAM bank at preliminary address.
+ */
memctl->memc_or3 = CFG_OR3_PRELIM;
memctl->memc_br3 = CFG_BR3_PRELIM;
@@ -137,26 +137,30 @@
memctl->memc_mamr = CFG_MAMR_8COL; /* refresh not enabled yet */
/* mode initialization (offset 5) */
- udelay(200); /* 0x80006105 */
- memctl->memc_mcr = MCR_OP_RUN | MCR_MB_CS3 | MCR_MLCF(1) | MCR_MAD(0x05);
+ udelay (200); /* 0x80006105 */
+ memctl->memc_mcr =
+ MCR_OP_RUN | MCR_MB_CS3 | MCR_MLCF (1) | MCR_MAD (0x05);
/* run 2 refresh sequence with 4-beat refresh burst (offset 0x30) */
- udelay(1); /* 0x80006130 */
- memctl->memc_mcr = MCR_OP_RUN | MCR_MB_CS3 | MCR_MLCF(1) | MCR_MAD(0x30);
- udelay(1); /* 0x80006130 */
- memctl->memc_mcr = MCR_OP_RUN | MCR_MB_CS3 | MCR_MLCF(1) | MCR_MAD(0x30);
+ udelay (1); /* 0x80006130 */
+ memctl->memc_mcr =
+ MCR_OP_RUN | MCR_MB_CS3 | MCR_MLCF (1) | MCR_MAD (0x30);
+ udelay (1); /* 0x80006130 */
+ memctl->memc_mcr =
+ MCR_OP_RUN | MCR_MB_CS3 | MCR_MLCF (1) | MCR_MAD (0x30);
- udelay(1); /* 0x80006106 */
- memctl->memc_mcr = MCR_OP_RUN | MCR_MB_CS3 | MCR_MLCF(1) | MCR_MAD(0x06);
+ udelay (1); /* 0x80006106 */
+ memctl->memc_mcr =
+ MCR_OP_RUN | MCR_MB_CS3 | MCR_MLCF (1) | MCR_MAD (0x06);
memctl->memc_mamr |= MAMR_PTAE; /* refresh enabled */
- udelay(200);
+ udelay (200);
/* Need at least 10 DRAM accesses to stabilize */
- for (i=0; i<10; ++i) {
- volatile unsigned long *addr = \
- (volatile unsigned long *)SDRAM_BASE3_PRELIM;
+ for (i = 0; i < 10; ++i) {
+ volatile unsigned long *addr =
+ (volatile unsigned long *) SDRAM_BASE3_PRELIM;
unsigned long val;
val = *(addr + i);
@@ -164,11 +168,10 @@
}
/*
- * Check Bank 0 Memory Size for re-configuration
- */
+ * Check Bank 0 Memory Size for re-configuration
+ */
size_b0 = dram_size (CFG_MAMR_8COL,
- (ulong *)SDRAM_BASE3_PRELIM,
- SDRAM_MAX_SIZE);
+ (ulong *) SDRAM_BASE3_PRELIM, SDRAM_MAX_SIZE);
memctl->memc_mamr = CFG_MAMR_8COL | MAMR_PTAE;
@@ -178,7 +181,7 @@
memctl->memc_or3 = ((-size_b0) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
memctl->memc_br3 = (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
- udelay(1000);
+ udelay (1000);
return (size_b0);
}
@@ -193,44 +196,13 @@
* - short between data lines
*/
-static long int dram_size (long int mamr_value, long int *base, long int maxsize)
+static long int dram_size (long int mamr_value, long int *base,
+ long int maxsize)
{
- volatile immap_t *immap = (immap_t *)CFG_IMMR;
- volatile memctl8xx_t *memctl = &immap->im_memctl;
- volatile long int *addr;
- ulong cnt, val;
- ulong save[32]; /* to make test non-destructive */
- unsigned char i = 0;
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
- memctl->memc_mamr = mamr_value;
+ memctl->memc_mamr = mamr_value;
- for (cnt = maxsize/sizeof(long); cnt > 0; cnt >>= 1) {
- addr = base + cnt; /* pointer arith! */
-
- save[i++] = *addr;
- *addr = ~cnt;
- }
-
- /* write 0 to base address */
- addr = base;
- save[i] = *addr;
- *addr = 0;
-
- /* check at base address */
- if ((val = *addr) != 0) {
- *addr = save[i];
- return (0);
- }
-
- for (cnt = 1; cnt <= maxsize/sizeof(long); cnt <<= 1) {
- addr = base + cnt; /* pointer arith! */
-
- val = *addr;
- *addr = save[--i];
-
- if (val != (~cnt)) {
- return (cnt * sizeof(long));
- }
- }
- return (maxsize);
+ return (get_ram_size (base, maxsize));
}