summaryrefslogtreecommitdiff
path: root/board/nx823
diff options
context:
space:
mode:
Diffstat (limited to 'board/nx823')
-rw-r--r--board/nx823/nx823.c492
1 files changed, 206 insertions, 286 deletions
diff --git a/board/nx823/nx823.c b/board/nx823/nx823.c
index 07d173b..cbcbab8 100644
--- a/board/nx823/nx823.c
+++ b/board/nx823/nx823.c
@@ -36,16 +36,12 @@ static long int dram_size (long int, long int *, long int);
#define _NOT_USED_ 0xFFFFFFFF
-const uint sdram_table[] =
-{
+const uint sdram_table[] = {
#if (MPC8XX_SPEED <= 50000000L)
/*
* Single Read. (Offset 0 in UPMA RAM)
*/
- 0x0F07EC04,
- 0x01BBD804,
- 0x1FF7F440,
- 0xFFFFFC07,
+ 0x0F07EC04, 0x01BBD804, 0x1FF7F440, 0xFFFFFC07,
0xFFFFFFFF,
/*
@@ -56,95 +52,47 @@ const uint sdram_table[] =
* sequence, which is executed by a RUN command.
*
*/
- 0x1FE7F434,
- 0xEFABE834,
- 0x1FA7D435,
+ 0x1FE7F434, 0xEFABE834, 0x1FA7D435,
/*
* Burst Read. (Offset 8 in UPMA RAM)
*/
- 0x0F07EC04,
- 0x10EFDC04,
- 0xF0AFFC00,
- 0xF0AFFC00,
- 0xF1AFFC00,
- 0xFFAFFC40,
- 0xFFAFFC07,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
+ 0x0F07EC04, 0x10EFDC04, 0xF0AFFC00, 0xF0AFFC00,
+ 0xF1AFFC00, 0xFFAFFC40, 0xFFAFFC07, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
/*
* Single Write. (Offset 18 in UPMA RAM)
*/
- 0x0E07E804,
- 0x01BBD000,
- 0x1FF7F447,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
+ 0x0E07E804, 0x01BBD000, 0x1FF7F447, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
/*
* Burst Write. (Offset 20 in UPMA RAM)
*/
- 0x0E07E800,
- 0x10EFD400,
- 0xF0AFFC00,
- 0xF0AFFC00,
- 0xF1AFFC47,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
+ 0x0E07E800, 0x10EFD400, 0xF0AFFC00, 0xF0AFFC00,
+ 0xF1AFFC47, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
/*
* Refresh (Offset 30 in UPMA RAM)
*/
- 0x1FF7DC84,
- 0xFFFFFC04,
- 0xFFFFFC84,
- 0xFFFFFC07,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
+ 0x1FF7DC84, 0xFFFFFC04, 0xFFFFFC84, 0xFFFFFC07,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
/*
* Exception. (Offset 3c in UPMA RAM)
*/
- 0x7FFFFC07,
- 0xFFFFFFFF,
- 0xFFFFFFFF,
- 0xFFFFFFFF
-
+ 0x7FFFFC07, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF
#else
/*
* Single Read. (Offset 0 in UPMA RAM)
*/
- 0x1F07FC04,
- 0xEEAFEC04,
- 0x11AFDC04,
- 0xEFBBF800,
+ 0x1F07FC04, 0xEEAFEC04, 0x11AFDC04, 0xEFBBF800,
0x1FF7F447,
/*
@@ -155,55 +103,35 @@ const uint sdram_table[] =
* sequence, which is executed by a RUN command.
*
*/
- 0x1FF7F434,
- 0xEFEBE834,
- 0x1FB7D435,
+ 0x1FF7F434, 0xEFEBE834, 0x1FB7D435,
/*
* Burst Read. (Offset 8 in UPMA RAM)
*/
- 0x1F07FC04,
- 0xEEAFEC04,
- 0x10AFDC04,
- 0xF0AFFC00,
- 0xF0AFFC00,
- 0xF1AFFC00,
- 0xEFBBF800,
- 0x1FF7F447,
+ 0x1F07FC04, 0xEEAFEC04, 0x10AFDC04, 0xF0AFFC00,
+ 0xF0AFFC00, 0xF1AFFC00, 0xEFBBF800, 0x1FF7F447,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Single Write. (Offset 18 in UPMA RAM)
*/
- 0x1F07FC04,
- 0xEEAFE800,
- 0x01BBD004,
- 0x1FF7F447,
+ 0x1F07FC04, 0xEEAFE800, 0x01BBD004, 0x1FF7F447,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Burst Write. (Offset 20 in UPMA RAM)
*/
- 0x1F07FC04,
- 0xEEAFE800,
- 0x10AFD400,
- 0xF0AFFC00,
- 0xF0AFFC00,
- 0xE1BBF804,
- 0x1FF7F447,
- _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ 0x1F07FC04, 0xEEAFE800, 0x10AFD400, 0xF0AFFC00,
+ 0xF0AFFC00, 0xE1BBF804, 0x1FF7F447, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Refresh (Offset 30 in UPMA RAM)
*/
- 0x1FF7DC84,
- 0xFFFFFC04,
- 0xFFFFFC04,
- 0xFFFFFC04,
- 0xFFFFFC84,
- 0xFFFFFC07,
+ 0x1FF7DC84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
+ 0xFFFFFC84, 0xFFFFFC07,
_NOT_USED_, _NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_,
@@ -211,7 +139,7 @@ const uint sdram_table[] =
* Exception. (Offset 3c in UPMA RAM)
*/
0x7FFFFC07, /* last */
- _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
#endif
};
@@ -225,91 +153,94 @@ const uint sdram_table[] =
int checkboard (void)
{
- printf ("Board: Nexus NX823");
- return (0);
+ printf ("Board: Nexus NX823");
+ return (0);
}
/* ------------------------------------------------------------------------- */
long int initdram (int board_type)
{
- volatile immap_t *immap = (immap_t *)CFG_IMMR;
- volatile memctl8xx_t *memctl = &immap->im_memctl;
- long int size_b0, size_b1, size8, size9;
-
- upmconfig(UPMA, (uint *)sdram_table, sizeof(sdram_table)/sizeof(uint));
-
- /*
- * Up to 2 Banks of 64Mbit x 2 devices
- * Initial builds only have 1
- */
- memctl->memc_mptpr = CFG_MPTPR_1BK_4K;
- memctl->memc_mar = 0x00000088;
-
- /*
- * Map controller SDRAM bank 0
- */
- memctl->memc_or1 = CFG_OR1_PRELIM;
- memctl->memc_br1 = CFG_BR1_PRELIM;
- memctl->memc_mamr = CFG_MAMR_8COL & (~(MAMR_PTAE)); /* no refresh yet */
- udelay(200);
-
- /*
- * Map controller SDRAM bank 1
- */
- memctl->memc_or2 = CFG_OR2_PRELIM;
- memctl->memc_br2 = CFG_BR2_PRELIM;
-
- /*
- * Perform SDRAM initializsation sequence
- */
- memctl->memc_mcr = 0x80002105; /* SDRAM bank 0 */
- udelay(1);
- memctl->memc_mcr = 0x80002230; /* SDRAM bank 0 - execute twice */
- udelay(1);
-
- memctl->memc_mcr = 0x80004105; /* SDRAM bank 1 */
- udelay(1);
- memctl->memc_mcr = 0x80004230; /* SDRAM bank 1 - execute twice */
- udelay(1);
-
- memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */
- udelay (1000);
-
- /*
- * Preliminary prescaler for refresh (depends on number of
- * banks): This value is selected for four cycles every 62.4 us
- * with two SDRAM banks or four cycles every 31.2 us with one
- * bank. It will be adjusted after memory sizing.
- */
- memctl->memc_mptpr = CFG_MPTPR_2BK_8K;
-
- memctl->memc_mar = 0x00000088;
-
-
- /*
- * Check Bank 0 Memory Size for re-configuration
- *
- * try 8 column mode
- */
- size8 = dram_size (CFG_MAMR_8COL, (ulong *)SDRAM_BASE1_PRELIM, SDRAM_MAX_SIZE);
-
- udelay (1000);
-
- /*
- * try 9 column mode
- */
- size9 = dram_size (CFG_MAMR_9COL, (ulong *)SDRAM_BASE1_PRELIM, SDRAM_MAX_SIZE);
-
- if (size8 < size9) { /* leave configuration at 9 columns */
- size_b0 = size9;
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+ long int size_b0, size_b1, size8, size9;
+
+ upmconfig (UPMA, (uint *) sdram_table,
+ sizeof (sdram_table) / sizeof (uint));
+
+ /*
+ * Up to 2 Banks of 64Mbit x 2 devices
+ * Initial builds only have 1
+ */
+ memctl->memc_mptpr = CFG_MPTPR_1BK_4K;
+ memctl->memc_mar = 0x00000088;
+
+ /*
+ * Map controller SDRAM bank 0
+ */
+ memctl->memc_or1 = CFG_OR1_PRELIM;
+ memctl->memc_br1 = CFG_BR1_PRELIM;
+ memctl->memc_mamr = CFG_MAMR_8COL & (~(MAMR_PTAE)); /* no refresh yet */
+ udelay (200);
+
+ /*
+ * Map controller SDRAM bank 1
+ */
+ memctl->memc_or2 = CFG_OR2_PRELIM;
+ memctl->memc_br2 = CFG_BR2_PRELIM;
+
+ /*
+ * Perform SDRAM initializsation sequence
+ */
+ memctl->memc_mcr = 0x80002105; /* SDRAM bank 0 */
+ udelay (1);
+ memctl->memc_mcr = 0x80002230; /* SDRAM bank 0 - execute twice */
+ udelay (1);
+
+ memctl->memc_mcr = 0x80004105; /* SDRAM bank 1 */
+ udelay (1);
+ memctl->memc_mcr = 0x80004230; /* SDRAM bank 1 - execute twice */
+ udelay (1);
+
+ memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */
+ udelay (1000);
+
+ /*
+ * Preliminary prescaler for refresh (depends on number of
+ * banks): This value is selected for four cycles every 62.4 us
+ * with two SDRAM banks or four cycles every 31.2 us with one
+ * bank. It will be adjusted after memory sizing.
+ */
+ memctl->memc_mptpr = CFG_MPTPR_2BK_8K;
+
+ memctl->memc_mar = 0x00000088;
+
+
+ /*
+ * Check Bank 0 Memory Size for re-configuration
+ *
+ * try 8 column mode
+ */
+ size8 = dram_size (CFG_MAMR_8COL, (ulong *) SDRAM_BASE1_PRELIM,
+ SDRAM_MAX_SIZE);
+
+ udelay (1000);
+
+ /*
+ * try 9 column mode
+ */
+ size9 = dram_size (CFG_MAMR_9COL, (ulong *) SDRAM_BASE1_PRELIM,
+ SDRAM_MAX_SIZE);
+
+ if (size8 < size9) { /* leave configuration at 9 columns */
+ size_b0 = size9;
/* debug ("SDRAM Bank 0 in 9 column mode: %ld MB\n", size >> 20); */
- } else { /* back to 8 columns */
- size_b0 = size8;
- memctl->memc_mamr = CFG_MAMR_8COL;
- udelay(500);
+ } else { /* back to 8 columns */
+ size_b0 = size8;
+ memctl->memc_mamr = CFG_MAMR_8COL;
+ udelay (500);
/* debug ("SDRAM Bank 0 in 8 column mode: %ld MB\n", size >> 20); */
- }
+ }
/*
* Check Bank 1 Memory Size
@@ -317,83 +248,97 @@ long int initdram (int board_type)
* [9 column SDRAM may also be used in 8 column mode,
* but then only half the real size will be used.]
*/
- size_b1 = dram_size (memctl->memc_mamr, (ulong *)SDRAM_BASE2_PRELIM,
- SDRAM_MAX_SIZE);
+ size_b1 = dram_size (memctl->memc_mamr, (ulong *) SDRAM_BASE2_PRELIM,
+ SDRAM_MAX_SIZE);
/* debug ("SDRAM Bank 1: %ld MB\n", size8 >> 20); */
- udelay (1000);
-
- /*
- * Adjust refresh rate depending on SDRAM type, both banks
- * For types > 128 MBit leave it at the current (fast) rate
- */
- if ((size_b0 < 0x02000000) && (size_b1 < 0x02000000)) {
- /* reduce to 15.6 us (62.4 us / quad) */
- memctl->memc_mptpr = CFG_MPTPR_2BK_4K;
- udelay(1000);
- }
-
- /*
- * Final mapping: map bigger bank first
- */
- if (size_b1 > size_b0) { /* SDRAM Bank 1 is bigger - map first */
-
- memctl->memc_or2 = ((-size_b1) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
- memctl->memc_br2 = (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
-
- if (size_b0 > 0) {
- /*
- * Position Bank 0 immediately above Bank 1
- */
- memctl->memc_or1 = ((-size_b0) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
- memctl->memc_br1 = ((CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V)
- + size_b1;
- } else {
- unsigned long reg;
- /*
- * No bank 0
- *
- * invalidate bank
- */
- memctl->memc_br1 = 0;
-
- /* adjust refresh rate depending on SDRAM type, one bank */
- reg = memctl->memc_mptpr;
- reg >>= 1; /* reduce to CFG_MPTPR_1BK_8K / _4K */
- memctl->memc_mptpr = reg;
+ udelay (1000);
+
+ /*
+ * Adjust refresh rate depending on SDRAM type, both banks
+ * For types > 128 MBit leave it at the current (fast) rate
+ */
+ if ((size_b0 < 0x02000000) && (size_b1 < 0x02000000)) {
+ /* reduce to 15.6 us (62.4 us / quad) */
+ memctl->memc_mptpr = CFG_MPTPR_2BK_4K;
+ udelay (1000);
}
- } else { /* SDRAM Bank 0 is bigger - map first */
-
- memctl->memc_or1 = ((-size_b0) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
- memctl->memc_br1 = (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
-
- if (size_b1 > 0) {
- /*
- * Position Bank 1 immediately above Bank 0
- */
- memctl->memc_or2 = ((-size_b1) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
- memctl->memc_br2 = ((CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V)
- + size_b0;
- } else {
- unsigned long reg;
- /*
- * No bank 1
- *
- * invalidate bank
- */
- memctl->memc_br2 = 0;
-
- /* adjust refresh rate depending on SDRAM type, one bank */
- reg = memctl->memc_mptpr;
- reg >>= 1; /* reduce to CFG_MPTPR_1BK_8K / _4K */
- memctl->memc_mptpr = reg;
+ /*
+ * Final mapping: map bigger bank first
+ */
+ if (size_b1 > size_b0) { /* SDRAM Bank 1 is bigger - map first */
+
+ memctl->memc_or2 =
+ ((-size_b1) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
+ memctl->memc_br2 =
+ (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
+
+ if (size_b0 > 0) {
+ /*
+ * Position Bank 0 immediately above Bank 1
+ */
+ memctl->memc_or1 =
+ ((-size_b0) & 0xFFFF0000) |
+ CFG_OR_TIMING_SDRAM;
+ memctl->memc_br1 =
+ ((CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA |
+ BR_V)
+ + size_b1;
+ } else {
+ unsigned long reg;
+
+ /*
+ * No bank 0
+ *
+ * invalidate bank
+ */
+ memctl->memc_br1 = 0;
+
+ /* adjust refresh rate depending on SDRAM type, one bank */
+ reg = memctl->memc_mptpr;
+ reg >>= 1; /* reduce to CFG_MPTPR_1BK_8K / _4K */
+ memctl->memc_mptpr = reg;
+ }
+
+ } else { /* SDRAM Bank 0 is bigger - map first */
+
+ memctl->memc_or1 =
+ ((-size_b0) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
+ memctl->memc_br1 =
+ (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
+
+ if (size_b1 > 0) {
+ /*
+ * Position Bank 1 immediately above Bank 0
+ */
+ memctl->memc_or2 =
+ ((-size_b1) & 0xFFFF0000) |
+ CFG_OR_TIMING_SDRAM;
+ memctl->memc_br2 =
+ ((CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA |
+ BR_V)
+ + size_b0;
+ } else {
+ unsigned long reg;
+
+ /*
+ * No bank 1
+ *
+ * invalidate bank
+ */
+ memctl->memc_br2 = 0;
+
+ /* adjust refresh rate depending on SDRAM type, one bank */
+ reg = memctl->memc_mptpr;
+ reg >>= 1; /* reduce to CFG_MPTPR_1BK_8K / _4K */
+ memctl->memc_mptpr = reg;
+ }
}
- }
- udelay(10000);
+ udelay (10000);
- return (size_b0 + size_b1);
+ return (size_b0 + size_b1);
}
/* ------------------------------------------------------------------------- */
@@ -406,40 +351,15 @@ long int initdram (int board_type)
* - 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;
- long int cnt, val;
-
- memctl->memc_mamr = mamr_value;
-
- for (cnt = maxsize/sizeof(long); cnt > 0; cnt >>= 1) {
- addr = base + cnt; /* pointer arith! */
-
- *addr = ~cnt;
- }
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
- /* write 0 to base address */
- addr = base;
- *addr = 0;
+ memctl->memc_mamr = mamr_value;
- /* check at base address */
- if ((val = *addr) != 0) {
- return (0);
- }
-
- for (cnt = 1; ; cnt <<= 1) {
- addr = base + cnt; /* pointer arith! */
-
- val = *addr;
-
- if (val != (~cnt)) {
- return (cnt * sizeof(long));
- }
- }
- /* NOTREACHED */
+ return (get_ram_size (base, maxsize));
}
u_long *my_sernum;
@@ -452,16 +372,16 @@ int misc_init_r (void)
u_char *e = gd->bd->bi_enetaddr;
/* save serial numbre from flash (uniquely programmed) */
- my_sernum = malloc(8);
- memcpy(my_sernum,gd->bd->bi_sernum,8);
+ my_sernum = malloc (8);
+ memcpy (my_sernum, gd->bd->bi_sernum, 8);
/* save env variables according to sernum */
- sprintf(tmp,"%08lx%08lx",my_sernum[0],my_sernum[1]);
- setenv("serial#",tmp);
+ sprintf (tmp, "%08lx%08lx", my_sernum[0], my_sernum[1]);
+ setenv ("serial#", tmp);
- sprintf(tmp,"%02x:%02x:%02x:%02x:%02x:%02x"
- ,e[0],e[1],e[2],e[3],e[4],e[5]);
- setenv("ethaddr",tmp);
+ sprintf (tmp, "%02x:%02x:%02x:%02x:%02x:%02x", e[0], e[1], e[2], e[3],
+ e[4], e[5]);
+ setenv ("ethaddr", tmp);
return (0);
}
@@ -470,7 +390,7 @@ void load_sernum_ethaddr (void)
DECLARE_GLOBAL_DATA_PTR;
int i;
- bd_t * bd = gd->bd;
+ bd_t *bd = gd->bd;
for (i = 0; i < 8; i++) {
bd->bi_sernum[i] = *(u_char *) (CFG_FLASH_SN_BASE + i);
generated by cgit v1.1 at 2024-11-29 23:54:01 +0000