powerpc/mpc8xxx: Enable 3-way and 4-way DDR interleaving
Restructure DDR interleaving option to support 3 and 4 DDR controllers
for 2-, 3- and 4-way interleaving.
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/util.c b/arch/powerpc/cpu/mpc8xxx/ddr/util.c
index eb6a17a..664ad09 100644
--- a/arch/powerpc/cpu/mpc8xxx/ddr/util.c
+++ b/arch/powerpc/cpu/mpc8xxx/ddr/util.c
@@ -1,5 +1,5 @@
/*
- * Copyright 2008-2011 Freescale Semiconductor, Inc.
+ * Copyright 2008-2012 Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -79,7 +79,7 @@
void
__fsl_ddr_set_lawbar(const common_timing_params_t *memctl_common_params,
- unsigned int memctl_interleaved,
+ unsigned int law_memctl,
unsigned int ctrl_num)
{
unsigned long long base = memctl_common_params->base_address;
@@ -98,28 +98,13 @@
if ((base + size) >= CONFIG_MAX_MEM_MAPPED)
size = CONFIG_MAX_MEM_MAPPED - base;
#endif
-
- if (ctrl_num == 0) {
- /*
- * Set up LAW for DDR controller 1 space.
- */
- unsigned int lawbar1_target_id = memctl_interleaved
- ? LAW_TRGT_IF_DDR_INTRLV : LAW_TRGT_IF_DDR_1;
-
- if (set_ddr_laws(base, size, lawbar1_target_id) < 0) {
- printf("%s: ERROR (ctrl #0, intrlv=%d)\n", __func__,
- memctl_interleaved);
- return ;
- }
- } else if (ctrl_num == 1) {
- if (set_ddr_laws(base, size, LAW_TRGT_IF_DDR_2) < 0) {
- printf("%s: ERROR (ctrl #1)\n", __func__);
- return ;
- }
- } else {
- printf("%s: unexpected DDR controller number (%u)\n", __func__,
- ctrl_num);
+ if (set_ddr_laws(base, size, law_memctl) < 0) {
+ printf("%s: ERROR (ctrl #%d, TRGT ID=%x)\n", __func__, ctrl_num,
+ law_memctl);
+ return ;
}
+ debug("setup ddr law base = 0x%llx, size 0x%llx, TRGT_ID 0x%x\n",
+ base, size, law_memctl);
}
__attribute__((weak, alias("__fsl_ddr_set_lawbar"))) void
@@ -127,6 +112,15 @@
unsigned int memctl_interleaved,
unsigned int ctrl_num);
+void fsl_ddr_set_intl3r(const unsigned int granule_size)
+{
+#ifdef CONFIG_E6500
+ u32 *mcintl3r = (void *) (CONFIG_SYS_IMMR + 0x18004);
+ *mcintl3r = 0x80000000 | (granule_size & 0x1f);
+ debug("Enable MCINTL3R with granule size 0x%x\n", granule_size);
+#endif
+}
+
void board_add_ram_info(int use_default)
{
#if defined(CONFIG_MPC83xx)
@@ -137,6 +131,9 @@
#elif defined(CONFIG_MPC86xx)
ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC86xx_DDR_ADDR);
#endif
+#if defined(CONFIG_E6500) && (CONFIG_NUM_DDR_CONTROLLERS == 3)
+ u32 *mcintl3r = (void *) (CONFIG_SYS_IMMR + 0x18004);
+#endif
#if (CONFIG_NUM_DDR_CONTROLLERS > 1)
uint32_t cs0_config = in_be32(&ddr->cs0_config);
#endif
@@ -180,7 +177,29 @@
else
puts(", ECC off)");
-#if (CONFIG_NUM_DDR_CONTROLLERS > 1)
+#if (CONFIG_NUM_DDR_CONTROLLERS == 3)
+#ifdef CONFIG_E6500
+ if (*mcintl3r & 0x80000000) {
+ puts("\n");
+ puts(" DDR Controller Interleaving Mode: ");
+ switch (*mcintl3r & 0x1f) {
+ case FSL_DDR_3WAY_1KB_INTERLEAVING:
+ puts("3-way 1KB");
+ break;
+ case FSL_DDR_3WAY_4KB_INTERLEAVING:
+ puts("3-way 4KB");
+ break;
+ case FSL_DDR_3WAY_8KB_INTERLEAVING:
+ puts("3-way 8KB");
+ break;
+ default:
+ puts("3-way UNKNOWN");
+ break;
+ }
+ }
+#endif
+#endif
+#if (CONFIG_NUM_DDR_CONTROLLERS >= 2)
if (cs0_config & 0x20000000) {
puts("\n");
puts(" DDR Controller Interleaving Mode: ");