[U-Boot] [PATCH 17/24] FSL DDR: Convert SBC8560 to new DDR code.
Kumar Gala
galak at kernel.crashing.org
Wed Aug 27 08:10:50 CEST 2008
Signed-off-by: Kumar Gala <galak at kernel.crashing.org>
---
board/sbc8560/Makefile | 9 ++++--
board/sbc8560/ddr.c | 70 +++++++++++++++++++++++++++++++++++++++++++++
board/sbc8560/sbc8560.c | 6 +++-
board/sbc8560/u-boot.lds | 1 -
include/configs/SBC8540.h | 22 ++++++++++++--
include/configs/sbc8560.h | 28 ++++++++++++++----
6 files changed, 122 insertions(+), 14 deletions(-)
create mode 100644 board/sbc8560/ddr.c
diff --git a/board/sbc8560/Makefile b/board/sbc8560/Makefile
index bb96d95..6399734 100644
--- a/board/sbc8560/Makefile
+++ b/board/sbc8560/Makefile
@@ -28,10 +28,13 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).a
-COBJS := $(BOARD).o law.o tlb.o
+COBJS-y += $(BOARD).o
+COBJS-y += law.o
+COBJS-y += tlb.o
+COBJS-$(CONFIG_FSL_DDR1) += ddr.o
-SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS := $(addprefix $(obj),$(COBJS))
+SRCS := $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS-y))
SOBJS := $(addprefix $(obj),$(SOBJS))
$(LIB): $(obj).depend $(OBJS) $(SOBJS)
diff --git a/board/sbc8560/ddr.c b/board/sbc8560/ddr.c
new file mode 100644
index 0000000..45372f4
--- /dev/null
+++ b/board/sbc8560/ddr.c
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2008 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
+ * Version 2 as published by the Free Software Foundation.
+ */
+
+#include <common.h>
+#include <i2c.h>
+
+#include <asm/fsl_ddr_sdram.h>
+
+static void
+get_spd(ddr1_spd_eeprom_t *spd, unsigned char i2c_address)
+{
+ i2c_read(i2c_address, 0, 1, (uchar *)spd, sizeof(ddr1_spd_eeprom_t));
+}
+
+
+unsigned int
+fsl_ddr_get_mem_data_rate(void)
+{
+ return get_ddr_freq(0);
+}
+
+
+void
+fsl_ddr_get_spd(ddr1_spd_eeprom_t *ctrl_dimms_spd,
+ unsigned int ctrl_num)
+{
+ unsigned int i;
+ unsigned int i2c_address = 0;
+
+ for (i = 0; i < CONFIG_DIMM_SLOTS_PER_CTLR; i++) {
+ if (ctrl_num == 0 && i == 0) {
+ i2c_address = SPD_EEPROM_ADDRESS;
+ }
+ get_spd(&(ctrl_dimms_spd[i]), i2c_address);
+ }
+}
+
+void fsl_ddr_board_options(memctl_options_t *popts, unsigned int ctrl_num)
+{
+ /*
+ * Factors to consider for CPO:
+ * - frequency
+ * - ddr1 vs. ddr2
+ */
+ popts->cpo_override = 0;
+
+ /*
+ * Factors to consider for write data delay:
+ * - number of DIMMs
+ *
+ * 1 = 1/4 clock delay
+ * 2 = 1/2 clock delay
+ * 3 = 3/4 clock delay
+ * 4 = 1 clock delay
+ * 5 = 5/4 clock delay
+ * 6 = 3/2 clock delay
+ */
+ popts->write_data_delay = 3;
+
+ /*
+ * Factors to consider for half-strength driver enable:
+ * - number of DIMMs installed
+ */
+ popts->half_strength_driver_enable = 0;
+}
diff --git a/board/sbc8560/sbc8560.c b/board/sbc8560/sbc8560.c
index d9e598c..dc66170 100644
--- a/board/sbc8560/sbc8560.c
+++ b/board/sbc8560/sbc8560.c
@@ -29,7 +29,9 @@
#include <common.h>
#include <asm/processor.h>
+#include <asm/mmu.h>
#include <asm/immap_85xx.h>
+#include <asm/fsl_ddr_sdram.h>
#include <ioports.h>
#include <spd_sdram.h>
#include <miiphy.h>
@@ -283,7 +285,9 @@ phys_size_t initdram (int board_type)
#endif
#if defined(CONFIG_SPD_EEPROM)
- dram_size = spd_sdram ();
+ dram_size = fsl_ddr_sdram();
+ dram_size = setup_ddr_tlbs(dram_size / 0x100000);
+ dram_size *= 0x100000;
#else
dram_size = fixed_sdram ();
#endif
diff --git a/board/sbc8560/u-boot.lds b/board/sbc8560/u-boot.lds
index ba5ce0b..237a3b6 100644
--- a/board/sbc8560/u-boot.lds
+++ b/board/sbc8560/u-boot.lds
@@ -74,7 +74,6 @@ SECTIONS
cpu/mpc85xx/cpu_init.o (.text)
cpu/mpc85xx/cpu.o (.text)
cpu/mpc85xx/speed.o (.text)
- cpu/mpc85xx/spd_sdram.o (.text)
common/dlmalloc.o (.text)
lib_generic/crc32.o (.text)
lib_ppc/extable.o (.text)
diff --git a/include/configs/SBC8540.h b/include/configs/SBC8540.h
index 6033d93..93509ee 100644
--- a/include/configs/SBC8540.h
+++ b/include/configs/SBC8540.h
@@ -103,18 +103,34 @@
#define CFG_CCSRBAR_PHYS CFG_CCSRBAR /* physical addr of CCSRBAR */
#define CFG_IMMR CFG_CCSRBAR /* PQII uses CFG_IMMR */
-#define CFG_DDR_SDRAM_BASE 0x00000000 /* DDR is system memory */
-#define CFG_SDRAM_BASE CFG_DDR_SDRAM_BASE
#define CFG_SDRAM_SIZE 512 /* DDR is 512MB */
-#define SPD_EEPROM_ADDRESS 0x55 /* DDR DIMM */
+/* DDR Setup */
+#define CONFIG_FSL_DDR1
+#undef CONFIG_FSL_DDR_INTERACTIVE
#undef CONFIG_DDR_ECC /* only for ECC DDR module */
#undef CONFIG_SPD_EEPROM /* Use SPD EEPROM for DDR setup */
+#undef CONFIG_DDR_SPD
#if defined(CONFIG_MPC85xx_REV1)
#define CONFIG_DDR_DLL /* possible DLL fix needed */
#endif
+#undef CONFIG_DDR_ECC /* only for ECC DDR module */
+#undef CONFIG_ECC_INIT_VIA_DDRCONTROLLER /* DDR controller or DMA? */
+#define CONFIG_MEM_INIT_VALUE 0xDeadBeef
+
+#define CFG_DDR_SDRAM_BASE 0x00000000
+#define CFG_SDRAM_BASE CFG_DDR_SDRAM_BASE
+#define CONFIG_VERY_BIG_RAM
+
+#define CONFIG_NUM_DDR_CONTROLLERS 1
+#define CONFIG_DIMM_SLOTS_PER_CTLR 1
+#define CONFIG_CHIP_SELECTS_PER_CTRL 2
+
+/* I2C addresses of SPD EEPROMs */
+#define SPD_EEPROM_ADDRESS 0x55 /* CTLR 0 DIMM 0 */
+
#undef CONFIG_CLOCKS_IN_MHZ
#if defined(CONFIG_RAM_AS_FLASH)
diff --git a/include/configs/sbc8560.h b/include/configs/sbc8560.h
index b244eef..99d328c 100644
--- a/include/configs/sbc8560.h
+++ b/include/configs/sbc8560.h
@@ -97,18 +97,34 @@
#define CFG_CCSRBAR_PHYS CFG_CCSRBAR /* physical addr of CCSRBAR */
#define CFG_IMMR CFG_CCSRBAR /* PQII uses CFG_IMMR */
-#define CFG_DDR_SDRAM_BASE 0x00000000 /* DDR is system memory */
-#define CFG_SDRAM_BASE CFG_DDR_SDRAM_BASE
#define CFG_SDRAM_SIZE 512 /* DDR is 512MB */
-#define SPD_EEPROM_ADDRESS 0x55 /* DDR DIMM */
-#undef CONFIG_DDR_ECC /* only for ECC DDR module */
-#undef CONFIG_SPD_EEPROM /* Use SPD EEPROM for DDR setup */
+/* DDR Setup */
+#define CONFIG_FSL_DDR1
+#undef CONFIG_FSL_DDR_INTERACTIVE
+#undef CONFIG_DDR_ECC /* only for ECC DDR module */
+#undef CONFIG_SPD_EEPROM /* Use SPD EEPROM for DDR setup */
+#undef CONFIG_DDR_SPD
#if defined(CONFIG_MPC85xx_REV1)
- #define CONFIG_DDR_DLL /* possible DLL fix needed */
+ #define CONFIG_DDR_DLL /* possible DLL fix needed */
#endif
+#undef CONFIG_DDR_ECC /* only for ECC DDR module */
+#undef CONFIG_ECC_INIT_VIA_DDRCONTROLLER /* DDR controller or DMA? */
+#define CONFIG_MEM_INIT_VALUE 0xDeadBeef
+
+#define CFG_DDR_SDRAM_BASE 0x00000000
+#define CFG_SDRAM_BASE CFG_DDR_SDRAM_BASE
+#define CONFIG_VERY_BIG_RAM
+
+#define CONFIG_NUM_DDR_CONTROLLERS 1
+#define CONFIG_DIMM_SLOTS_PER_CTLR 1
+#define CONFIG_CHIP_SELECTS_PER_CTRL 2
+
+/* I2C addresses of SPD EEPROMs */
+#define SPD_EEPROM_ADDRESS 0x55 /* CTLR 0 DIMM 0 */
+
#undef CONFIG_CLOCKS_IN_MHZ
#if defined(CONFIG_RAM_AS_FLASH)
--
1.5.5.1
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