summaryrefslogtreecommitdiff
path: root/cpu/mpc86xx
diff options
context:
space:
mode:
Diffstat (limited to 'cpu/mpc86xx')
-rw-r--r--cpu/mpc86xx/cpu.c24
-rw-r--r--cpu/mpc86xx/cpu_init.c7
-rw-r--r--cpu/mpc86xx/spd_sdram.c37
-rw-r--r--cpu/mpc86xx/start.S119
4 files changed, 108 insertions, 79 deletions
diff --git a/cpu/mpc86xx/cpu.c b/cpu/mpc86xx/cpu.c
index 11354d38da..e1b3c52dcd 100644
--- a/cpu/mpc86xx/cpu.c
+++ b/cpu/mpc86xx/cpu.c
@@ -27,6 +27,7 @@
#include <command.h>
#include <asm/cache.h>
#include <mpc86xx.h>
+#include <asm/fsl_law.h>
#if defined(CONFIG_OF_FLAT_TREE)
#include <ft_build.h>
@@ -324,6 +325,27 @@ ft_cpu_setup(void *blob, bd_t *bd)
if (p != NULL)
memcpy(p, bd->bi_enet3addr, 6);
#endif
+#endif /* CONFIG_OF_FLAT_TREE */
+
+/*
+ * Print out the state of various machine registers.
+ * Currently prints out LAWs and BR0/OR0
+ */
+void mpc86xx_reginfo(void)
+{
+ immap_t *immap = (immap_t *)CFG_IMMR;
+ ccsr_lbc_t *lbc = &immap->im_lbc;
+
+ print_laws();
+
+ printf ("Local Bus Controller Registers\n"
+ "\tBR0\t0x%08X\tOR0\t0x%08X \n", in_be32(&lbc->br0), in_be32(&lbc->or0));
+ printf("\tBR1\t0x%08X\tOR1\t0x%08X \n", in_be32(&lbc->br1), in_be32(&lbc->or1));
+ printf("\tBR2\t0x%08X\tOR2\t0x%08X \n", in_be32(&lbc->br2), in_be32(&lbc->or2));
+ printf("\tBR3\t0x%08X\tOR3\t0x%08X \n", in_be32(&lbc->br3), in_be32(&lbc->or3));
+ printf("\tBR4\t0x%08X\tOR4\t0x%08X \n", in_be32(&lbc->br4), in_be32(&lbc->or4));
+ printf("\tBR5\t0x%08X\tOR5\t0x%08X \n", in_be32(&lbc->br5), in_be32(&lbc->or5));
+ printf("\tBR6\t0x%08X\tOR6\t0x%08X \n", in_be32(&lbc->br6), in_be32(&lbc->or6));
+ printf("\tBR7\t0x%08X\tOR7\t0x%08X \n", in_be32(&lbc->br7), in_be32(&lbc->or7));
}
-#endif
diff --git a/cpu/mpc86xx/cpu_init.c b/cpu/mpc86xx/cpu_init.c
index 4f8956e0af..ab5906dbc0 100644
--- a/cpu/mpc86xx/cpu_init.c
+++ b/cpu/mpc86xx/cpu_init.c
@@ -49,6 +49,10 @@ void cpu_init_f(void)
/* Clear initial global data */
memset ((void *) gd, 0, sizeof (gd_t));
+#ifdef CONFIG_FSL_LAW
+ init_laws();
+#endif
+
/* Map banks 0 and 1 to the FLASH banks 0 and 1 at preliminary
* addresses - these have to be modified later when FLASH size
* has been determined
@@ -114,5 +118,8 @@ void cpu_init_f(void)
*/
int cpu_init_r(void)
{
+#ifdef CONFIG_FSL_LAW
+ disable_law(0);
+#endif
return 0;
}
diff --git a/cpu/mpc86xx/spd_sdram.c b/cpu/mpc86xx/spd_sdram.c
index 54e40f1f50..e501caf457 100644
--- a/cpu/mpc86xx/spd_sdram.c
+++ b/cpu/mpc86xx/spd_sdram.c
@@ -27,7 +27,7 @@
#include <i2c.h>
#include <spd.h>
#include <asm/mmu.h>
-
+#include <asm/fsl_law.h>
#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
extern void dma_init(void);
@@ -1123,7 +1123,6 @@ spd_sdram(void)
int memsize_ddr1 = 0;
unsigned int law_size_ddr1;
volatile immap_t *immap = (immap_t *)CFG_IMMR;
- volatile ccsr_local_mcm_t *mcm = &immap->im_local_mcm;
#ifdef CONFIG_DDR_INTERLEAVE
volatile ccsr_ddr_t *ddr1 = &immap->im_ddr1;
#endif
@@ -1179,12 +1178,9 @@ spd_sdram(void)
/*
* Set up LAWBAR for DDR 1 space.
*/
- mcm->lawbar1 = ((CFG_DDR_SDRAM_BASE >> 12) & 0xfffff);
- mcm->lawar1 = (LAWAR_EN
- | LAWAR_TRGT_IF_DDR_INTERLEAVED
- | (LAWAR_SIZE & law_size_interleaved));
- debug("DDR: LAWBAR1=0x%08x\n", mcm->lawbar1);
- debug("DDR: LAWAR1=0x%08x\n", mcm->lawar1);
+#ifdef CONFIG_FSL_LAW
+ set_law(1, CFG_DDR_SDRAM_BASE, law_size_interleaved, LAW_TRGT_IF_DDR_INTRLV);
+#endif
debug("Interleaved memory size is 0x%08lx\n", memsize_total);
#ifdef CONFIG_DDR_INTERLEAVE
@@ -1239,12 +1235,9 @@ spd_sdram(void)
/*
* Set up LAWBAR for DDR 1 space.
*/
- mcm->lawbar1 = ((CFG_DDR_SDRAM_BASE >> 12) & 0xfffff);
- mcm->lawar1 = (LAWAR_EN
- | LAWAR_TRGT_IF_DDR1
- | (LAWAR_SIZE & law_size_ddr1));
- debug("DDR: LAWBAR1=0x%08x\n", mcm->lawbar1);
- debug("DDR: LAWAR1=0x%08x\n", mcm->lawar1);
+#ifdef CONFIG_FSL_LAW
+ set_law(1, CFG_DDR_SDRAM_BASE, law_size_ddr1, LAW_TRGT_IF_DDR_1);
+#endif
}
#if (CONFIG_NUM_DDR_CONTROLLERS > 1)
@@ -1269,17 +1262,11 @@ spd_sdram(void)
/*
* Set up LAWBAR for DDR 2 space.
*/
- if (ddr1_enabled)
- mcm->lawbar8 = (((memsize_ddr1 * 1024 * 1024) >> 12)
- & 0xfffff);
- else
- mcm->lawbar8 = ((CFG_DDR_SDRAM_BASE >> 12) & 0xfffff);
-
- mcm->lawar8 = (LAWAR_EN
- | LAWAR_TRGT_IF_DDR2
- | (LAWAR_SIZE & law_size_ddr2));
- debug("\nDDR: LAWBAR8=0x%08x\n", mcm->lawbar8);
- debug("DDR: LAWAR8=0x%08x\n", mcm->lawar8);
+#ifdef CONFIG_FSL_LAW
+ set_law(8,
+ (ddr1_enabled ? (memsize_ddr1 * 1024 * 1024) : CFG_DDR_SDRAM_BASE),
+ law_size_ddr2, LAW_TRGT_IF_DDR_2);
+#endif
}
debug("\nMemory size of DDR2 = 0x%08lx\n", memsize_ddr2);
diff --git a/cpu/mpc86xx/start.S b/cpu/mpc86xx/start.S
index 09f4ceedb5..c71c92659d 100644
--- a/cpu/mpc86xx/start.S
+++ b/cpu/mpc86xx/start.S
@@ -235,17 +235,8 @@ in_flash:
bl enable_ext_addr
/* setup the bats */
- bl setup_bats
- sync
-
-#if (CFG_CCSRBAR_DEFAULT != CFG_CCSRBAR)
- /* setup ccsrbar */
- bl setup_ccsrbar
-#endif
+ bl early_bats
- /* setup the law entries */
- bl law_entry
- sync
/*
* Cache must be enabled here for stack-in-cache trick.
* This means we need to enable the BATS.
@@ -282,6 +273,16 @@ in_flash:
GET_GOT /* initialize GOT access */
+ /* setup the rest of the bats */
+ bl setup_bats
+ bl clear_tlbs
+ sync
+
+#if (CFG_CCSRBAR_DEFAULT != CFG_CCSRBAR)
+ /* setup ccsrbar */
+ bl setup_ccsrbar
+#endif
+
/* run low-level CPU init code (from Flash) */
bl cpu_init_f
sync
@@ -359,6 +360,7 @@ invalidate_bats:
/* setup_bats - set them up to some initial state */
+ /* Skip any BATS setup in early_bats */
.globl setup_bats
setup_bats:
@@ -454,42 +456,6 @@ setup_bats:
mtspr DBAT4U, r3
isync
- /* IBAT 5 */
- addis r4, r0, CFG_IBAT5L@h
- ori r4, r4, CFG_IBAT5L@l
- addis r3, r0, CFG_IBAT5U@h
- ori r3, r3, CFG_IBAT5U@l
- mtspr IBAT5L, r4
- mtspr IBAT5U, r3
- isync
-
- /* DBAT 5 */
- addis r4, r0, CFG_DBAT5L@h
- ori r4, r4, CFG_DBAT5L@l
- addis r3, r0, CFG_DBAT5U@h
- ori r3, r3, CFG_DBAT5U@l
- mtspr DBAT5L, r4
- mtspr DBAT5U, r3
- isync
-
- /* IBAT 6 */
- addis r4, r0, CFG_IBAT6L@h
- ori r4, r4, CFG_IBAT6L@l
- addis r3, r0, CFG_IBAT6U@h
- ori r3, r3, CFG_IBAT6U@l
- mtspr IBAT6L, r4
- mtspr IBAT6U, r3
- isync
-
- /* DBAT 6 */
- addis r4, r0, CFG_DBAT6L@h
- ori r4, r4, CFG_DBAT6L@l
- addis r3, r0, CFG_DBAT6U@h
- ori r3, r3, CFG_DBAT6U@l
- mtspr DBAT6L, r4
- mtspr DBAT6U, r3
- isync
-
/* IBAT 7 */
addis r4, r0, CFG_IBAT7L@h
ori r4, r4, CFG_IBAT7L@l
@@ -508,18 +474,65 @@ setup_bats:
mtspr DBAT7U, r3
isync
-1:
- addis r3, 0, 0x0000
- addis r5, 0, 0x4 /* upper bound of 0x00040000 for 7400/750 */
+ sync
+ blr
+
+/*
+ * early_bats:
+ *
+ * Set up bats needed early on - this is usually the BAT for the
+ * stack-in-cache and the Flash
+ */
+ .globl early_bats
+early_bats:
+ /* IBAT 5 */
+ lis r4, CFG_IBAT5L@h
+ ori r4, r4, CFG_IBAT5L@l
+ lis r3, CFG_IBAT5U@h
+ ori r3, r3, CFG_IBAT5U@l
+ mtspr IBAT5L, r4
+ mtspr IBAT5U, r3
+ isync
+
+ /* DBAT 5 */
+ lis r4, CFG_DBAT5L@h
+ ori r4, r4, CFG_DBAT5L@l
+ lis r3, CFG_DBAT5U@h
+ ori r3, r3, CFG_DBAT5U@l
+ mtspr DBAT5L, r4
+ mtspr DBAT5U, r3
+ isync
+
+ /* IBAT 6 */
+ lis r4, CFG_IBAT6L@h
+ ori r4, r4, CFG_IBAT6L@l
+ lis r3, CFG_IBAT6U@h
+ ori r3, r3, CFG_IBAT6U@l
+ mtspr IBAT6L, r4
+ mtspr IBAT6U, r3
isync
+ /* DBAT 6 */
+ lis r4, CFG_DBAT6L@h
+ ori r4, r4, CFG_DBAT6L@l
+ lis r3, CFG_DBAT6U@h
+ ori r3, r3, CFG_DBAT6U@l
+ mtspr DBAT6L, r4
+ mtspr DBAT6U, r3
+ isync
+ blr
+
+ .globl clear_tlbs
+clear_tlbs:
+ addis r3, 0, 0x0000
+ addis r5, 0, 0x4
+ isync
tlblp:
- tlbie r3
+ tlbie r3
sync
- addi r3, r3, 0x1000
- cmp 0, 0, r3, r5
+ addi r3, r3, 0x1000
+ cmp 0, 0, r3, r5
blt tlblp
-
blr
.globl enable_addr_trans
View Lorry Controller Status