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Diffstat (limited to 'board/esteem192e/esteem192e.c')
-rw-r--r--board/esteem192e/esteem192e.c321
1 files changed, 124 insertions, 197 deletions
diff --git a/board/esteem192e/esteem192e.c b/board/esteem192e/esteem192e.c
index 986964b..f080d67 100644
--- a/board/esteem192e/esteem192e.c
+++ b/board/esteem192e/esteem192e.c
@@ -30,20 +30,15 @@
/* ------------------------------------------------------------------------- */
-static long int dram_size ( long int *base, long int maxsize);
-
-/* ------------------------------------------------------------------------- */
-
#define _NOT_USED_ 0xFFFFFFFF
-const uint sdram_table[] =
-{
+const uint sdram_table[] = {
/*
* Single Read. (Offset 0 in UPMA RAM)
*
* active, NOP, read, precharge, NOP */
0x0F27CC04, 0x0EAECC04, 0x00B98C04, 0x00F74C00,
- 0x11FFCC05, /* last */
+ 0x11FFCC05, /* last */
/*
* SDRAM Initialization (offset 5 in UPMA RAM)
*
@@ -52,42 +47,42 @@ const uint sdram_table[] =
* sequence, which is executed by a RUN command.
* NOP, Program
*/
- 0x0F0A8C34, 0x1F354C37, /* last */
+ 0x0F0A8C34, 0x1F354C37, /* last */
- _NOT_USED_, /* Not used */
+ _NOT_USED_, /* Not used */
/*
* Burst Read. (Offset 8 in UPMA RAM)
* active, NOP, read, NOP, NOP, NOP, NOP, NOP */
0x0F37CC04, 0x0EFECC04, 0x00FDCC04, 0x00FFCC00,
- 0x00FFCC00, 0x01FFCC00, 0x0FFFCC00, 0x1FFFCC05, /* last */
+ 0x00FFCC00, 0x01FFCC00, 0x0FFFCC00, 0x1FFFCC05, /* last */
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Single Write. (Offset 18 in UPMA RAM)
* active, NOP, write, NOP, precharge, NOP */
0x0F27CC04, 0x0EAE8C00, 0x01BD4C04, 0x0FFB8C04,
- 0x0FF74C04, 0x1FFFCC05, /* last */
+ 0x0FF74C04, 0x1FFFCC05, /* last */
_NOT_USED_, _NOT_USED_,
/*
* Burst Write. (Offset 20 in UPMA RAM)
* active, NOP, write, NOP, NOP, NOP, NOP, NOP */
0x0F37CC04, 0x0EFE8C00, 0x00FD4C00, 0x00FFCC00,
- 0x00FFCC00, 0x01FFCC04, 0x0FFFCC04, 0x1FFFCC05, /* last */
+ 0x00FFCC00, 0x01FFCC04, 0x0FFFCC04, 0x1FFFCC05, /* last */
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Refresh (Offset 30 in UPMA RAM)
* precharge, NOP, auto_ref, NOP, NOP, NOP */
0x0FF74C34, 0x0FFACCB4, 0x0FF5CC34, 0x0FFFCC34,
- 0x0FFFCCB4, 0x1FFFCC35, /* last */
- _NOT_USED_, _NOT_USED_,
+ 0x0FFFCCB4, 0x1FFFCC35, /* last */
+ _NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Exception. (Offset 3c in UPMA RAM)
*/
- 0x0FFB8C00, 0x1FF74C03, /* last */
- _NOT_USED_, _NOT_USED_
+ 0x0FFB8C00, 0x1FF74C03, /* last */
+ _NOT_USED_, _NOT_USED_
};
/* ------------------------------------------------------------------------- */
@@ -99,8 +94,8 @@ const uint sdram_table[] =
int checkboard (void)
{
- puts ("Board: Esteem 192E\n");
- return(0);
+ puts ("Board: Esteem 192E\n");
+ return (0);
}
/* ------------------------------------------------------------------------- */
@@ -108,209 +103,141 @@ int checkboard (void)
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;
-
- /*
- * Explain frequency of refresh here
- */
-
- memctl->memc_mptpr = 0x0200; /* divide by 32 */
-
- memctl->memc_mamr = 0x18003112; /*CFG_MAMR_8COL;*/ /* 0x18005112 TODO: explain here */
-
- upmconfig(UPMA, (uint *)sdram_table, sizeof(sdram_table)/sizeof(uint));
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+ long int size_b0, size_b1;
- /*
- * Map cs 2 and 3 to the SDRAM banks 0 and 1 at
- * preliminary addresses - these have to be modified after the
- * SDRAM size has been determined.
- */
-
- memctl->memc_or2 = CFG_OR2_PRELIM; /* not defined yet */
- memctl->memc_br2 = CFG_BR2_PRELIM;
+ /*
+ * Explain frequency of refresh here
+ */
- memctl->memc_or3 = CFG_OR3_PRELIM;
- memctl->memc_br3 = CFG_BR3_PRELIM;
+ memctl->memc_mptpr = 0x0200; /* divide by 32 */
+ memctl->memc_mamr = 0x18003112; /*CFG_MAMR_8COL; *//* 0x18005112 TODO: explain here */
- /* perform SDRAM initializsation sequence */
- memctl->memc_mar = 0x00000088;
+ upmconfig (UPMA, (uint *) sdram_table,
+ sizeof (sdram_table) / sizeof (uint));
- memctl->memc_mcr = 0x80004830; /* SDRAM bank 0 execute 8 refresh */
+ /*
+ * Map cs 2 and 3 to the SDRAM banks 0 and 1 at
+ * preliminary addresses - these have to be modified after the
+ * SDRAM size has been determined.
+ */
- memctl->memc_mcr = 0x80004105; /* SDRAM bank 0 */
+ memctl->memc_or2 = CFG_OR2_PRELIM; /* not defined yet */
+ memctl->memc_br2 = CFG_BR2_PRELIM;
+ memctl->memc_or3 = CFG_OR3_PRELIM;
+ memctl->memc_br3 = CFG_BR3_PRELIM;
- memctl->memc_mcr = 0x80006830; /* SDRAM bank 1 execute 8 refresh */
- memctl->memc_mcr = 0x80006105; /* SDRAM bank 1 */
+ /* perform SDRAM initializsation sequence */
+ memctl->memc_mar = 0x00000088;
+ memctl->memc_mcr = 0x80004830; /* SDRAM bank 0 execute 8 refresh */
+ memctl->memc_mcr = 0x80004105; /* SDRAM bank 0 */
+ memctl->memc_mcr = 0x80006830; /* SDRAM bank 1 execute 8 refresh */
+ memctl->memc_mcr = 0x80006105; /* SDRAM bank 1 */
- memctl->memc_mamr = CFG_MAMR_8COL; /* 0x18803112 start refresh timer TODO: explain here */
+ memctl->memc_mamr = CFG_MAMR_8COL; /* 0x18803112 start refresh timer TODO: explain here */
/* printf ("banks 0 and 1 are programed\n"); */
- /*
- * Check Bank 0 Memory Size for re-configuration
- *
- */
-
- size_b0 = dram_size ((ulong *)SDRAM_BASE2_PRELIM, SDRAM_MAX_SIZE);
-
- size_b1 = dram_size ((ulong *)SDRAM_BASE3_PRELIM, SDRAM_MAX_SIZE);
-
-
- printf ("\nbank 0 size %lu\nbank 1 size %lu\n",size_b0,size_b1);
+ /*
+ * Check Bank 0 Memory Size for re-configuration
+ *
+ */
+ size_b0 = get_ram_size ((ulong *) SDRAM_BASE2_PRELIM, SDRAM_MAX_SIZE);
+ size_b1 = get_ram_size ((ulong *) SDRAM_BASE3_PRELIM, SDRAM_MAX_SIZE);
+ printf ("\nbank 0 size %lu\nbank 1 size %lu\n", size_b0, size_b1);
/* printf ("bank 1 size %u\n",size_b1); */
- if(size_b1 == 0) {
-
- /*
- * Adjust refresh rate if bank 0 isn't stuffed
- */
-
- memctl->memc_mptpr = 0x0400; /* divide by 64 */
- memctl->memc_br3 &= 0x0FFFFFFFE;
-
- /*
- * Adjust OR2 for size of bank 0
- */
- memctl->memc_or2 |= 7 * size_b0;
-
- }
-
- else {
-
- if(size_b0 < size_b1) {
- memctl->memc_br2 &= 0x00007FFE;
- memctl->memc_br3 &= 0x00007FFF;
-
- /*
- * Adjust OR3 for size of bank 1
- */
- memctl->memc_or3 |= 15 * size_b1;
-
- /*
- * Adjust OR2 for size of bank 0
- */
- memctl->memc_or2 |= 15 * size_b0;
-
- memctl->memc_br2 += (size_b1 + 1);
-
- }
- else {
-
- memctl->memc_br3 &= 0x00007FFE;
-
-
- /*
- * Adjust OR2 for size of bank 0
- */
- memctl->memc_or2 |= 15 * size_b0;
-
- /*
- * Adjust OR3 for size of bank 1
- */
- memctl->memc_or3 |= 15 * size_b1;
-
- memctl->memc_br3 += (size_b0 + 1);
-
-
- }
- }
-
-
-/* before leaving set all unused i/o pins to outputs */
-
-/*
- * --*Unused Pin List*--
- *
- * group/port bit number
- * IP_B 0,1,3,4,5 Taken care of in pcmcia-cs-x.x.xx
- * PA 5,7,8,9,14,15
- * PB 22,23,31
- * PC 4,5,6,7,10,11,12,13,14,15
- * PD 5,6,7
- *
- */
-
-/*
- * --*Pin Used for I/O List*--
- *
- * port input bit number output bit number either
- * PB 18,26,27
- * PD 3,4 8,9,10,11,12,13,14,15
- *
- */
-
-
- immap->im_ioport.iop_papar &= ~0x05C3; /* set pins as io */
- immap->im_ioport.iop_padir |= 0x05C3; /* set pins as output */
- immap->im_ioport.iop_paodr &= 0x0008; /* config pins 9 & 14 as normal outputs */
- immap->im_ioport.iop_padat |= 0x05C3; /* set unused pins as high */
-
- immap->im_cpm.cp_pbpar &= ~0x00001331; /* set unused port b pins as io */
- immap->im_cpm.cp_pbdir |= 0x00001331; /* set unused port b pins as output */
- immap->im_cpm.cp_pbodr &= ~0x00001331; /* config bits 18,22,23,26,27 & 31 as normal outputs */
- immap->im_cpm.cp_pbdat |= 0x00001331; /* set T/E LED, /NV_CS, & /POWER_ADJ_CS and the rest to a high */
-
- immap->im_ioport.iop_pcpar &= ~0x0F3F; /* set unused port c pins as io */
- immap->im_ioport.iop_pcdir |= 0x0F3F; /* set unused port c pins as output */
- immap->im_ioport.iop_pcso &= ~0x0F3F; /* clear special purpose bit for unused port c pins for clarity */
- immap->im_ioport.iop_pcdat |= 0x0F3F; /* set unused port c pins high*/
-
- immap->im_ioport.iop_pdpar &= 0xE000; /* set pins as io */
- immap->im_ioport.iop_pddir &= 0xE000; /* set bit 3 & 4 as inputs */
- immap->im_ioport.iop_pddir |= 0x07FF; /* set bits 5 - 15 as outputs */
- immap->im_ioport.iop_pddat = 0x0055; /* set alternating pattern on test port */
-
-
- return (size_b0 + size_b1);
-}
-
-/* ------------------------------------------------------------------------- */
-
-/*
- * Check memory range for valid RAM. A simple memory test determines
- * the actually available RAM size between addresses `base' and
- * `base + maxsize'. Some (not all) hardware errors are detected:
- * - short between address lines
- * - short between data lines
- */
-
-static long int dram_size ( long int *base, long int maxsize)
-{
+ if (size_b1 == 0) {
+ /*
+ * Adjust refresh rate if bank 0 isn't stuffed
+ */
+ memctl->memc_mptpr = 0x0400; /* divide by 64 */
+ memctl->memc_br3 &= 0x0FFFFFFFE;
+
+ /*
+ * Adjust OR2 for size of bank 0
+ */
+ memctl->memc_or2 |= 7 * size_b0;
+ } else {
+ if (size_b0 < size_b1) {
+ memctl->memc_br2 &= 0x00007FFE;
+ memctl->memc_br3 &= 0x00007FFF;
+
+ /*
+ * Adjust OR3 for size of bank 1
+ */
+ memctl->memc_or3 |= 15 * size_b1;
+
+ /*
+ * Adjust OR2 for size of bank 0
+ */
+ memctl->memc_or2 |= 15 * size_b0;
+ memctl->memc_br2 += (size_b1 + 1);
+ } else {
+ memctl->memc_br3 &= 0x00007FFE;
+
+ /*
+ * Adjust OR2 for size of bank 0
+ */
+ memctl->memc_or2 |= 15 * size_b0;
+
+ /*
+ * Adjust OR3 for size of bank 1
+ */
+ memctl->memc_or3 |= 15 * size_b1;
+ memctl->memc_br3 += (size_b0 + 1);
+ }
+ }
- volatile long int *addr;
- long int cnt, val;
+ /* before leaving set all unused i/o pins to outputs */
- for (cnt = maxsize/sizeof(long); cnt > 0; cnt >>= 1) {
- addr = base + cnt; /* pointer arith! */
+ /*
+ * --*Unused Pin List*--
+ *
+ * group/port bit number
+ * IP_B 0,1,3,4,5 Taken care of in pcmcia-cs-x.x.xx
+ * PA 5,7,8,9,14,15
+ * PB 22,23,31
+ * PC 4,5,6,7,10,11,12,13,14,15
+ * PD 5,6,7
+ *
+ */
- *addr = ~cnt;
- }
+ /*
+ * --*Pin Used for I/O List*--
+ *
+ * port input bit number output bit number either
+ * PB 18,26,27
+ * PD 3,4 8,9,10,11,12,13,14,15
+ *
+ */
- /* write 0 to base address */
- addr = base;
- *addr = 0;
+ immap->im_ioport.iop_papar &= ~0x05C3; /* set pins as io */
+ immap->im_ioport.iop_padir |= 0x05C3; /* set pins as output */
+ immap->im_ioport.iop_paodr &= 0x0008; /* config pins 9 & 14 as normal outputs */
+ immap->im_ioport.iop_padat |= 0x05C3; /* set unused pins as high */
- /* check at base address */
- if ((val = *addr) != 0) {
- return (0);
- }
+ immap->im_cpm.cp_pbpar &= ~0x00001331; /* set unused port b pins as io */
+ immap->im_cpm.cp_pbdir |= 0x00001331; /* set unused port b pins as output */
+ immap->im_cpm.cp_pbodr &= ~0x00001331; /* config bits 18,22,23,26,27 & 31 as normal outputs */
+ immap->im_cpm.cp_pbdat |= 0x00001331; /* set T/E LED, /NV_CS, & /POWER_ADJ_CS and the rest to a high */
- for (cnt = 1; ; cnt <<= 1) {
- addr = base + cnt; /* pointer arith! */
+ immap->im_ioport.iop_pcpar &= ~0x0F3F; /* set unused port c pins as io */
+ immap->im_ioport.iop_pcdir |= 0x0F3F; /* set unused port c pins as output */
+ immap->im_ioport.iop_pcso &= ~0x0F3F; /* clear special purpose bit for unused port c pins for clarity */
+ immap->im_ioport.iop_pcdat |= 0x0F3F; /* set unused port c pins high */
- val = *addr;
+ immap->im_ioport.iop_pdpar &= 0xE000; /* set pins as io */
+ immap->im_ioport.iop_pddir &= 0xE000; /* set bit 3 & 4 as inputs */
+ immap->im_ioport.iop_pddir |= 0x07FF; /* set bits 5 - 15 as outputs */
+ immap->im_ioport.iop_pddat = 0x0055; /* set alternating pattern on test port */
- if (val != (~cnt)) {
- return (cnt * sizeof(long));
- }
- }
- /* NOTREACHED */
+ return (size_b0 + size_b1);
}
generated by cgit v1.1 at 2024-11-10 07:55:24 +0000