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Diffstat (limited to 'board/emk/top860/top860.c')
-rw-r--r--board/emk/top860/top860.c232
1 files changed, 111 insertions, 121 deletions
diff --git a/board/emk/top860/top860.c b/board/emk/top860/top860.c
index b99bf0e..d13be98 100644
--- a/board/emk/top860/top860.c
+++ b/board/emk/top860/top860.c
@@ -35,47 +35,47 @@
#include <commproc.h>
#include <mpc8xx.h>
-/*****************************************************************************
- * UPM table for 60ns EDO RAM at 25 MHz bus/external clock
- *****************************************************************************/
+/*****************************************************************************
+ * UPM table for 60ns EDO RAM at 25 MHz bus/external clock
+ *****************************************************************************/
static const uint edo_60ns_25MHz_tbl[] = {
-
-/* single read (offset 0x00 in upm ram) */
- 0x0ff3fc04,0x08f3fc04,0x00f3fc04,0x00f3fc00,
- 0x33f7fc07,0xfffffc05,0xfffffc05,0xfffffc05,
-/* burst read (offset 0x08 in upm ram) */
- 0x0ff3fc04,0x08f3fc04,0x00f3fc0c,0x0ff3fc40,
- 0x0cf3fc04,0x03f3fc48,0x0cf3fc04,0x03f3fc48,
- 0x0cf3fc04,0x03f3fc00,0x3ff7fc07,0xfffffc05,
- 0xfffffc05,0xfffffc05,0xfffffc05,0xfffffc05,
-/* single write (offset 0x18 in upm ram) */
- 0x0ffffc04,0x08fffc04,0x30fffc00,0xf1fffc07,
- 0xfffffc05,0xfffffc05,0xfffffc05,0xfffffc05,
-/* burst write (offset 0x20 in upm ram) */
- 0x0ffffc04,0x08fffc00,0x00fffc04,0x03fffc4c,
- 0x00fffc00,0x07fffc4c,0x00fffc00,0x0ffffc4c,
- 0x00fffc00,0x3ffffc07,0xfffffc05,0xfffffc05,
- 0xfffffc05,0xfffffc05,0xfffffc05,0xfffffc05,
-/* refresh (offset 0x30 in upm ram) */
- 0xc0fffc04,0x07fffc04,0x0ffffc04,0x0ffffc04,
- 0xfffffc05,0xfffffc05,0xfffffc05,0xfffffc05,
- 0xfffffc05,0xfffffc05,0xfffffc05,0xfffffc05,
-/* exception (offset 0x3C in upm ram) */
- 0xfffffc07,0xfffffc03,0xfffffc05,0xfffffc05,
+
+/* single read (offset 0x00 in upm ram) */
+ 0x0ff3fc04,0x08f3fc04,0x00f3fc04,0x00f3fc00,
+ 0x33f7fc07,0xfffffc05,0xfffffc05,0xfffffc05,
+/* burst read (offset 0x08 in upm ram) */
+ 0x0ff3fc04,0x08f3fc04,0x00f3fc0c,0x0ff3fc40,
+ 0x0cf3fc04,0x03f3fc48,0x0cf3fc04,0x03f3fc48,
+ 0x0cf3fc04,0x03f3fc00,0x3ff7fc07,0xfffffc05,
+ 0xfffffc05,0xfffffc05,0xfffffc05,0xfffffc05,
+/* single write (offset 0x18 in upm ram) */
+ 0x0ffffc04,0x08fffc04,0x30fffc00,0xf1fffc07,
+ 0xfffffc05,0xfffffc05,0xfffffc05,0xfffffc05,
+/* burst write (offset 0x20 in upm ram) */
+ 0x0ffffc04,0x08fffc00,0x00fffc04,0x03fffc4c,
+ 0x00fffc00,0x07fffc4c,0x00fffc00,0x0ffffc4c,
+ 0x00fffc00,0x3ffffc07,0xfffffc05,0xfffffc05,
+ 0xfffffc05,0xfffffc05,0xfffffc05,0xfffffc05,
+/* refresh (offset 0x30 in upm ram) */
+ 0xc0fffc04,0x07fffc04,0x0ffffc04,0x0ffffc04,
+ 0xfffffc05,0xfffffc05,0xfffffc05,0xfffffc05,
+ 0xfffffc05,0xfffffc05,0xfffffc05,0xfffffc05,
+/* exception (offset 0x3C in upm ram) */
+ 0xfffffc07,0xfffffc03,0xfffffc05,0xfffffc05,
};
-/*****************************************************************************
- * Print Board Identity
- *****************************************************************************/
+/*****************************************************************************
+ * Print Board Identity
+ *****************************************************************************/
int checkboard (void)
{
puts ("Board:"CONFIG_IDENT_STRING"\n");
return (0);
}
-/*****************************************************************************
- * Initialize DRAM controller
- *****************************************************************************/
+/*****************************************************************************
+ * Initialize DRAM controller
+ *****************************************************************************/
long int initdram (int board_type)
{
volatile immap_t *immap = (immap_t *) CFG_IMMR;
@@ -85,103 +85,93 @@ long int initdram (int board_type)
* Only initialize memory controller when running from FLASH.
* When running from RAM, don't touch it.
*/
- if ((ulong) initdram & 0xff000000)
- {
- volatile uint *addr1, *addr2;
- uint i, j;
+ if ((ulong) initdram & 0xff000000) {
+ volatile uint *addr1, *addr2;
+ uint i, j;
- upmconfig (UPMA, (uint *) edo_60ns_25MHz_tbl,
- sizeof (edo_60ns_25MHz_tbl) / sizeof (uint));
+ upmconfig (UPMA, (uint *) edo_60ns_25MHz_tbl,
+ sizeof (edo_60ns_25MHz_tbl) / sizeof (uint));
memctl->memc_mptpr = 0x0200;
memctl->memc_mamr = 0x0ca20330;
memctl->memc_or2 = -CFG_DRAM_MAX | OR_CSNT_SAM;
memctl->memc_br2 = CFG_DRAM_BASE | BR_MS_UPMA | BR_V;
- /*
- * Do 8 read accesses to DRAM
- */
- addr1 = (volatile uint*) 0;
- addr2 = (volatile uint*) 0x00400000;
- for (i=0, j=0; i<8; i++)
- j = addr1[0];
-
- /*
- * Now check whether we got 4MB or 16MB populated
- */
- addr1[0] = 0x12345678;
- addr1[1] = 0x9abcdef0;
- addr2[0] = 0xfeedc0de;
- addr2[1] = 0x47110815;
- if (addr1[0] == 0xfeedc0de && addr1[1] == 0x47110815)
- {
- /* only 4MB populated */
- memctl->memc_or2 = -(CFG_DRAM_MAX/4) | OR_CSNT_SAM;
- }
- }
-
+ /*
+ * Do 8 read accesses to DRAM
+ */
+ addr1 = (volatile uint *) 0;
+ addr2 = (volatile uint *) 0x00400000;
+ for (i = 0, j = 0; i < 8; i++)
+ j = addr1[0];
+
+ /*
+ * Now check whether we got 4MB or 16MB populated
+ */
+ addr1[0] = 0x12345678;
+ addr1[1] = 0x9abcdef0;
+ addr2[0] = 0xfeedc0de;
+ addr2[1] = 0x47110815;
+ if (addr1[0] == 0xfeedc0de && addr1[1] == 0x47110815) {
+ /* only 4MB populated */
+ memctl->memc_or2 = -(CFG_DRAM_MAX / 4) | OR_CSNT_SAM;
+ }
+ }
+
return -(memctl->memc_or2 & 0xffff0000);
}
-
-/*****************************************************************************
- * otherinits after RAM is there and we are relocated to RAM
- * note: though this is an int function, nobody cares for the result!
- *****************************************************************************/
+
+/*****************************************************************************
+ * otherinits after RAM is there and we are relocated to RAM
+ * note: though this is an int function, nobody cares for the result!
+ *****************************************************************************/
int misc_init_r (void)
-{
- /* read 'factory' part of EEPROM */
- uchar buf[81];
- uchar *p;
- uint length;
- uint addr;
- uint len;
-
- /* get length first */
- addr = CFG_FACT_OFFSET;
- if (eeprom_read (CFG_I2C_FACT_ADDR, addr, buf, 2))
- {
-bailout:
- printf ("cannot read factory configuration\n");
- printf ("be sure to set ethaddr yourself!\n");
- return 0;
+{
+ /* read 'factory' part of EEPROM */
+ uchar buf[81];
+ uchar *p;
+ uint length;
+ uint addr;
+ uint len;
+
+ /* get length first */
+ addr = CFG_FACT_OFFSET;
+ if (eeprom_read (CFG_I2C_FACT_ADDR, addr, buf, 2)) {
+ bailout:
+ printf ("cannot read factory configuration\n");
+ printf ("be sure to set ethaddr yourself!\n");
+ return 0;
+ }
+ length = buf[0] + (buf[1] << 8);
+ addr += 2;
+
+ /* sanity check */
+ if (length < 20 || length > CFG_FACT_SIZE - 2)
+ goto bailout;
+
+ /* read lines */
+ while (length > 0) {
+ /* read one line */
+ len = length > 80 ? 80 : length;
+ if (eeprom_read (CFG_I2C_FACT_ADDR, addr, buf, len))
+ goto bailout;
+ /* mark end of buffer */
+ buf[len] = 0;
+ /* search end of line */
+ for (p = buf; *p && *p != 0x0a; p++);
+ if (!*p)
+ goto bailout;
+ *p++ = 0;
+ /* advance to next line start */
+ length -= p - buf;
+ addr += p - buf;
+ /*printf ("%s\n", buf); */
+ /* search for our specific entry */
+ if (!strncmp ((char *) buf, "[RLA/lan/Ethernet] ", 19)) {
+ setenv ("ethaddr", buf + 19);
+ } else if (!strncmp ((char *) buf, "[BOARD/SERIAL] ", 15)) {
+ setenv ("serial#", buf + 15);
+ } else if (!strncmp ((char *) buf, "[BOARD/TYPE] ", 13)) {
+ setenv ("board_id", buf + 13);
+ }
}
- length = buf[0] + (buf[1]<<8);
- addr += 2;
-
- /* sanity check */
- if (length < 20 || length > CFG_FACT_SIZE-2)
- goto bailout;
-
- /* read lines */
- while (length > 0)
- {
- /* read one line */
- len = length > 80 ? 80 : length;
- if (eeprom_read (CFG_I2C_FACT_ADDR, addr, buf, len))
- goto bailout;
- /* mark end of buffer */
- buf[len] = 0;
- /* search end of line */
- for (p=buf; *p && *p != 0x0a; p++) ;
- if (!*p)
- goto bailout;
- *p++ = 0;
- /* advance to next line start */
- length -= p-buf;
- addr += p-buf;
- /*printf ("%s\n", buf);*/
- /* search for our specific entry */
- if (!strncmp ((char *)buf, "[RLA/lan/Ethernet] ", 19))
- {
- setenv ("ethaddr", buf+19);
- }
- else if (!strncmp ((char *)buf, "[BOARD/SERIAL] ", 15))
- {
- setenv ("serial#", buf+15);
- }
- else if (!strncmp ((char *)buf, "[BOARD/TYPE] ", 13))
- {
- setenv ("board_id", buf+13);
- }
- }
return (0);
}
-