Signed-off-by: Kumar Gala galak@kernel.crashing.org --- board/stxgp3/Makefile | 12 +++++-- board/stxgp3/ddr.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++ board/stxgp3/stxgp3.c | 6 +++- board/stxgp3/u-boot.lds | 1 - include/configs/stxgp3.h | 30 +++++++++++-------- 5 files changed, 100 insertions(+), 19 deletions(-) create mode 100644 board/stxgp3/ddr.c
diff --git a/board/stxgp3/Makefile b/board/stxgp3/Makefile index 325d6d5..5a68f11 100644 --- a/board/stxgp3/Makefile +++ b/board/stxgp3/Makefile @@ -25,10 +25,14 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).a
-COBJS := $(BOARD).o flash.o law.o tlb.o - -SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) -OBJS := $(addprefix $(obj),$(COBJS)) +COBJS-y += $(BOARD).o +COBJS-y += law.o +COBJS-y += tlb.o +COBJS-y += flash.o +COBJS-$(CONFIG_FSL_DDR1) += ddr.o + +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/stxgp3/ddr.c b/board/stxgp3/ddr.c new file mode 100644 index 0000000..45372f4 --- /dev/null +++ b/board/stxgp3/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/stxgp3/stxgp3.c b/board/stxgp3/stxgp3.c index 218e805..c80f1b3 100644 --- a/board/stxgp3/stxgp3.c +++ b/board/stxgp3/stxgp3.c @@ -32,7 +32,9 @@ #include <common.h> #include <pci.h> #include <asm/processor.h> +#include <asm/mmu.h> #include <asm/immap_85xx.h> +#include <asm/fsl_ddr_sdram.h> #include <ioports.h> #include <asm/io.h> #include <spd_sdram.h> @@ -292,7 +294,9 @@ initdram (int board_type) } #endif
- dram_size = spd_sdram (); + dram_size = fsl_ddr_sdram(); + dram_size = setup_ddr_tlbs(dram_size / 0x100000); + dram_size *= 0x100000;
#if defined(CONFIG_DDR_ECC) /* Initialize and enable DDR ECC. diff --git a/board/stxgp3/u-boot.lds b/board/stxgp3/u-boot.lds index 9cc4997..d5363be 100644 --- a/board/stxgp3/u-boot.lds +++ b/board/stxgp3/u-boot.lds @@ -76,7 +76,6 @@ 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/stxgp3.h b/include/configs/stxgp3.h index 6e8213d..ea79de7 100644 --- a/include/configs/stxgp3.h +++ b/include/configs/stxgp3.h @@ -47,10 +47,6 @@ #define CONFIG_TSEC_ENET /* tsec ethernet support*/ #undef CONFIG_ETHER_ON_FCC /* cpm FCC ethernet support */ #define CONFIG_ENV_OVERWRITE -#define CONFIG_SPD_EEPROM /* Use SPD EEPROM for DDR setup */ -#undef CONFIG_DDR_ECC /* only for ECC DDR module */ -#define CONFIG_DDR_DLL /* possible DLL fix needed */ -#define CONFIG_DDR_2T_TIMING /* Sets the 2T timing bit */
#define CONFIG_FSL_LAW 1 /* Use common FSL init code */
@@ -118,19 +114,27 @@ #define CFG_CCSRBAR_PHYS CFG_CCSRBAR /* physical addr of CCSRBAR */ #define CFG_IMMR CFG_CCSRBAR /* PQII uses CFG_IMMR */
+/* DDR Setup */ +#define CONFIG_FSL_DDR1 +#define CONFIG_SPD_EEPROM /* Use SPD EEPROM for DDR setup*/ +#define CONFIG_DDR_SPD +#undef CONFIG_FSL_DDR_INTERACTIVE
-/* - * DDR Setup - */ +#undef CONFIG_DDR_ECC /* only for ECC DDR module */ +#define CONFIG_DDR_DLL /* possible DLL fix needed */ +#define CONFIG_DDR_2T_TIMING /* Sets the 2T timing bit */
-/* - * Base addresses -- Note these are effective addresses where the - * actual resources get mapped (not physical addresses) - */ -#define CFG_DDR_SDRAM_BASE 0x00000000 /* DDR is system memory */ +#define CONFIG_MEM_INIT_VALUE 0xDeadBeef + +#define CFG_DDR_SDRAM_BASE 0x00000000 /* DDR is system memory*/ #define CFG_SDRAM_BASE CFG_DDR_SDRAM_BASE
-#define SPD_EEPROM_ADDRESS 0x54 /* DDR DIMM */ +#define CONFIG_NUM_DDR_CONTROLLERS 1 +#define CONFIG_DIMM_SLOTS_PER_CTLR 1 +#define CONFIG_CHIP_SELECTS_PER_CTRL (2 * CONFIG_DIMM_SLOTS_PER_CTLR) + +/* I2C addresses of SPD EEPROMs */ +#define SPD_EEPROM_ADDRESS 0x54 /* CTLR 0 DIMM 0 */
#undef CONFIG_CLOCKS_IN_MHZ