85xx: Move LAW init code into C
Move the initialization of the LAWs into C code and provide an API
to allow modification of LAWs after init.
Board code is responsible to provide a law_table and num_law_entries.
We should be able to use the same code on 86xx as well.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/cpu/mpc85xx/spd_sdram.c b/cpu/mpc85xx/spd_sdram.c
index adc9c4d..bb5dc1f 100644
--- a/cpu/mpc85xx/spd_sdram.c
+++ b/cpu/mpc85xx/spd_sdram.c
@@ -27,6 +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)
@@ -1022,7 +1023,9 @@
static unsigned int
setup_laws_and_tlbs(unsigned int memsize)
{
+#ifndef CONFIG_FSL_LAW
volatile ccsr_local_ecm_t *ecm = (void *)(CFG_MPC85xx_ECM_ADDR);
+#endif
unsigned int tlb_size;
unsigned int law_size;
unsigned int ram_tlb_index;
@@ -1098,12 +1101,17 @@
/*
* Set up LAWBAR for all of DDR.
*/
+
+#ifdef CONFIG_FSL_LAW
+ set_law(1, CFG_DDR_SDRAM_BASE, law_size, LAW_TRGT_IF_DDR);
+#else
ecm->lawbar1 = ((CFG_DDR_SDRAM_BASE >> 12) & 0xfffff);
ecm->lawar1 = (LAWAR_EN
| LAWAR_TRGT_IF_DDR
| (LAWAR_SIZE & law_size));
debug("DDR: LAWBAR1=0x%08x\n", ecm->lawbar1);
debug("DDR: LARAR1=0x%08x\n", ecm->lawar1);
+#endif
/*
* Confirm that the requested amount of memory was mapped.