Signed-off-by: Martha M Stan <mm...@silicontkx.com>
---
board/davedenx/aria/aria.c | 2 +-
board/esd/mecp5123/mecp5123.c | 2 +-
board/freescale/mpc5121ads/mpc5121ads.c | 2 +-
cpu/mpc512x/fixed_sdram.c | 94 ++++++++++++++++++++-----------
include/asm-ppc/immap_512x.h | 5 +-
include/asm-ppc/mpc512x.h | 2 +-
include/configs/aria.h | 6 +--
include/configs/mecp5123.h | 5 +-
include/configs/mpc5121ads.h | 6 +--
9 files changed, 72 insertions(+), 52 deletions(-)
diff --git a/board/davedenx/aria/aria.c b/board/davedenx/aria/aria.c
index 2064aa2..cc69c9d 100644
--- a/board/davedenx/aria/aria.c
+++ b/board/davedenx/aria/aria.c
@@ -101,7 +101,7 @@ int board_early_init_f(void)
phys_size_t initdram (int board_type)
{
- return fixed_sdram();
+ return fixed_sdram(NULL, NULL, 0);
}
int misc_init_r(void)
diff --git a/board/esd/mecp5123/mecp5123.c b/board/esd/mecp5123/mecp5123.c
index f591e32..5139358 100644
--- a/board/esd/mecp5123/mecp5123.c
+++ b/board/esd/mecp5123/mecp5123.c
@@ -135,7 +135,7 @@ int board_early_init_f(void)
phys_size_t initdram(int board_type)
{
- return get_ram_size(0, fixed_sdram());
+ return get_ram_size(0, fixed_sdram(NULL, NULL, 0));
}
int misc_init_r(void)
diff --git a/board/freescale/mpc5121ads/mpc5121ads.c
b/board/freescale/mpc5121ads/mpc5121ads.c
index a0d7a82..8defb00 100644
--- a/board/freescale/mpc5121ads/mpc5121ads.c
+++ b/board/freescale/mpc5121ads/mpc5121ads.c
@@ -137,7 +137,7 @@ phys_size_t initdram(int board_type)
{
u32 msize = 0;
- msize = fixed_sdram();
+ msize = fixed_sdram(NULL, NULL, 0);
return msize;
}
diff --git a/cpu/mpc512x/fixed_sdram.c b/cpu/mpc512x/fixed_sdram.c
index d906903..eb0811c 100644
--- a/cpu/mpc512x/fixed_sdram.c
+++ b/cpu/mpc512x/fixed_sdram.c
@@ -20,23 +20,73 @@
* MA 02111-1307 USA
*
*/
-
+#define DEBUG 0xff
#include <common.h>
#include <asm/io.h>
#include <asm/mpc512x.h>
+/* config settings in order of the 4 mddrc cfg registers */
+u32 default_mddrc_config[4] = {
+ CONFIG_SYS_MDDRC_SYS_CFG,
+ CONFIG_SYS_MDDRC_TIME_CFG0,
+ CONFIG_SYS_MDDRC_TIME_CFG1,
+ CONFIG_SYS_MDDRC_TIME_CFG2
+};
+
+u32 default_init_sequence[] = {
+ CONFIG_SYS_MICRON_NOP,
+ CONFIG_SYS_MICRON_NOP,
+ CONFIG_SYS_MICRON_NOP,
+ CONFIG_SYS_MICRON_NOP,
+ CONFIG_SYS_MICRON_NOP,
+ CONFIG_SYS_MICRON_NOP,
+ CONFIG_SYS_MICRON_NOP,
+ CONFIG_SYS_MICRON_NOP,
+ CONFIG_SYS_MICRON_NOP,
+ CONFIG_SYS_MICRON_NOP,
+ CONFIG_SYS_MICRON_PCHG_ALL,
+ CONFIG_SYS_MICRON_NOP,
+ CONFIG_SYS_MICRON_RFSH,
+ CONFIG_SYS_MICRON_NOP,
+ CONFIG_SYS_MICRON_RFSH,
+ CONFIG_SYS_MICRON_NOP,
+ CONFIG_SYS_MICRON_INIT_DEV_OP,
+ CONFIG_SYS_MICRON_NOP,
+ CONFIG_SYS_MICRON_EM2,
+ CONFIG_SYS_MICRON_NOP,
+ CONFIG_SYS_MICRON_PCHG_ALL,
+ CONFIG_SYS_MICRON_EM2,
+ CONFIG_SYS_MICRON_EM3,
+ CONFIG_SYS_MICRON_EN_DLL,
+ CONFIG_SYS_MICRON_INIT_DEV_OP,
+ CONFIG_SYS_MICRON_PCHG_ALL,
+ CONFIG_SYS_MICRON_RFSH,
+ CONFIG_SYS_MICRON_INIT_DEV_OP,
+ CONFIG_SYS_MICRON_OCD_DEFAULT,
+ CONFIG_SYS_MICRON_PCHG_ALL,
+ CONFIG_SYS_MICRON_NOP
+};
+
/*
* fixed sdram init:
* The board doesn't use memory modules that have serial presence
* detect or similar mechanism for discovery of the DRAM settings
*/
-long int fixed_sdram(void)
+long int fixed_sdram(u32 *mddrc_config, u32 *dram_init_sequence, int
seq_table_size)
{
volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
u32 msize = CONFIG_SYS_DDR_SIZE * 1024 * 1024;
u32 msize_log2 = __ilog2(msize);
u32 i;
+ /* take default settings and init sequence if necessary */
+ if (mddrc_config == 0)
+ mddrc_config = default_mddrc_config;
+ if (dram_init_sequence == 0) {
+ dram_init_sequence = default_init_sequence;
+ seq_table_size = sizeof(default_init_sequence)/sizeof(u32);
+ }
+
/* Initialize IO Control */
out_be32(&im->io_ctrl.io_control_mem, IOCTRL_MUX_DDR);
@@ -46,7 +96,7 @@ long int fixed_sdram(void)
sync_law(&im->sysconf.ddrlaw.ar);
/* Enable DDR */
- out_be32(&im->mddrc.ddr_sys_config, CONFIG_SYS_MDDRC_SYS_CFG_EN);
+ out_be32(&im->mddrc.ddr_sys_config, MDDRC_SYS_CFG_EN);
/* Initialize DDR Priority Manager */
out_be32(&im->mddrc.prioman_config1, CONFIG_SYS_MDDRCGRP_PM_CFG1);
@@ -74,40 +124,18 @@ long int fixed_sdram(void)
out_be32(&im->mddrc.lut_table4_alternate_lower,
CONFIG_SYS_MDDRCGRP_LUT4_AL);
/* Initialize MDDRC */
- out_be32(&im->mddrc.ddr_sys_config, CONFIG_SYS_MDDRC_SYS_CFG);
- out_be32(&im->mddrc.ddr_time_config0, CONFIG_SYS_MDDRC_TIME_CFG0);
- out_be32(&im->mddrc.ddr_time_config1, CONFIG_SYS_MDDRC_TIME_CFG1);
- out_be32(&im->mddrc.ddr_time_config2, CONFIG_SYS_MDDRC_TIME_CFG2);
+ out_be32(&im->mddrc.ddr_sys_config, mddrc_config[0]);
+ out_be32(&im->mddrc.ddr_time_config0, mddrc_config[1] &
MDDRC_TIME_CFG0_RFRSH0);
+ out_be32(&im->mddrc.ddr_time_config1, mddrc_config[2]);
+ out_be32(&im->mddrc.ddr_time_config2, mddrc_config[3]);
/* Initialize DDR */
- for (i = 0; i < 10; i++)
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
-
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_PCHG_ALL);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_RFSH);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_RFSH);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_INIT_DEV_OP);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_EM2);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_PCHG_ALL);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_EM2);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_EM3);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_EN_DLL);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_INIT_DEV_OP);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_PCHG_ALL);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_RFSH);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_INIT_DEV_OP);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_OCD_DEFAULT);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_PCHG_ALL);
- out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
+ for (i = 0; i < seq_table_size; i++)
+ out_be32(&im->mddrc.ddr_command, dram_init_sequence[i]);
/* Start MDDRC */
- out_be32(&im->mddrc.ddr_time_config0, CONFIG_SYS_MDDRC_TIME_CFG0_RUN);
- out_be32(&im->mddrc.ddr_sys_config, CONFIG_SYS_MDDRC_SYS_CFG_RUN);
+ out_be32(&im->mddrc.ddr_time_config0, mddrc_config[1]);
+ out_be32(&im->mddrc.ddr_sys_config, mddrc_config[0] &
MDDRC_SYS_CFG_RUN);
return msize;
}
diff --git a/include/asm-ppc/immap_512x.h b/include/asm-ppc/immap_512x.h
index 24e6c69..13d3d0e 100644
--- a/include/asm-ppc/immap_512x.h
+++ b/include/asm-ppc/immap_512x.h
@@ -45,7 +45,6 @@
#define IMMRBAR_BASE_ADDR 0xFFF00000 /* Base address mask */
#define IMMRBAR_RES ~(IMMRBAR_BASE_ADDR)
-
#ifndef __ASSEMBLY__
typedef struct law512x {
u32 bar; /* Base Addr Register */
@@ -341,6 +340,10 @@ typedef struct ddr512x {
u32 res2[0x3AD];
} ddr512x_t;
+/* MDDRC SYS CFG and Timing CFG0 Registers */
+#define MDDRC_SYS_CFG_EN 0xF0000000
+#define MDDRC_SYS_CFG_RUN ~(0x01 << 28)
+#define MDDRC_TIME_CFG0_RFRSH0 0x0000FFFF
/*
* DMA/Messaging Unit
diff --git a/include/asm-ppc/mpc512x.h b/include/asm-ppc/mpc512x.h
index 20456f5..6a65492 100644
--- a/include/asm-ppc/mpc512x.h
+++ b/include/asm-ppc/mpc512x.h
@@ -50,7 +50,7 @@ static inline void sync_law(volatile void *addr)
/*
* Prototypes
*/
-extern long int fixed_sdram(void);
+extern long int fixed_sdram(u32 *mddrc_config, u32 *dram_init_sequence, int
seq_table_size);
extern int mpc5121_diu_init(void);
extern void ide_set_reset(int idereset);
diff --git a/include/configs/aria.h b/include/configs/aria.h
index 4211113..a6fa168 100644
--- a/include/configs/aria.h
+++ b/include/configs/aria.h
@@ -143,14 +143,10 @@
(0 << 0) /* FIFO_UV_EN */ \
)
-#define CONFIG_SYS_MDDRC_SYS_CFG_RUN (CONFIG_SYS_MDDRC_SYS_CFG & ~(1 << 28))
+#define CONFIG_SYS_MDDRC_TIME_CFG0 0x030C3D2E
#define CONFIG_SYS_MDDRC_TIME_CFG1 0x55D81189
#define CONFIG_SYS_MDDRC_TIME_CFG2 0x34790863
-#define CONFIG_SYS_MDDRC_SYS_CFG_EN 0xF0000000
-#define CONFIG_SYS_MDDRC_TIME_CFG0 0x00003D2E
-#define CONFIG_SYS_MDDRC_TIME_CFG0_RUN 0x030C3D2E
-
#define CONFIG_SYS_MICRON_NOP 0x01380000
#define CONFIG_SYS_MICRON_PCHG_ALL 0x01100400
#define CONFIG_SYS_MICRON_EMR ( (1 << 24) | /* CMD_REQ */ \
diff --git a/include/configs/mecp5123.h b/include/configs/mecp5123.h
index 1ecae00..8bed9d1 100644
--- a/include/configs/mecp5123.h
+++ b/include/configs/mecp5123.h
@@ -112,12 +112,9 @@
* [04:00] DRAM tRPA
*/
#define CONFIG_SYS_MDDRC_SYS_CFG 0xFA804A00
-#define CONFIG_SYS_MDDRC_SYS_CFG_RUN 0xEA804A00
+#define CONFIG_SYS_MDDRC_TIME_CFG0 0x06183D2E
#define CONFIG_SYS_MDDRC_TIME_CFG1 0x68EC1168
#define CONFIG_SYS_MDDRC_TIME_CFG2 0x34310864
-#define CONFIG_SYS_MDDRC_SYS_CFG_EN 0xF0000000
-#define CONFIG_SYS_MDDRC_TIME_CFG0 0x00003D2E
-#define CONFIG_SYS_MDDRC_TIME_CFG0_RUN 0x06183D2E
#define CONFIG_SYS_MICRON_NOP 0x01380000
#define CONFIG_SYS_MICRON_PCHG_ALL 0x01100400
diff --git a/include/configs/mpc5121ads.h b/include/configs/mpc5121ads.h
index 76f174d..d96e7f5 100644
--- a/include/configs/mpc5121ads.h
+++ b/include/configs/mpc5121ads.h
@@ -132,18 +132,14 @@
*/
#ifdef CONFIG_MPC5121ADS_REV2
#define CONFIG_SYS_MDDRC_SYS_CFG 0xF8604A00
-#define CONFIG_SYS_MDDRC_SYS_CFG_RUN 0xE8604A00
#define CONFIG_SYS_MDDRC_TIME_CFG1 0x54EC1168
#define CONFIG_SYS_MDDRC_TIME_CFG2 0x35210864
#else
#define CONFIG_SYS_MDDRC_SYS_CFG 0xFA804A00
-#define CONFIG_SYS_MDDRC_SYS_CFG_RUN 0xEA804A00
#define CONFIG_SYS_MDDRC_TIME_CFG1 0x68EC1168
#define CONFIG_SYS_MDDRC_TIME_CFG2 0x34310864
#endif
-#define CONFIG_SYS_MDDRC_SYS_CFG_EN 0xF0000000
-#define CONFIG_SYS_MDDRC_TIME_CFG0 0x00003D2E
-#define CONFIG_SYS_MDDRC_TIME_CFG0_RUN 0x06183D2E
+#define CONFIG_SYS_MDDRC_TIME_CFG0 0x06183D2E
#define CONFIG_SYS_MICRON_NOP 0x01380000
#define CONFIG_SYS_MICRON_PCHG_ALL 0x01100400
--
1.5.2.4
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