diff options
Diffstat (limited to 'board/stxssa')
| -rw-r--r-- | board/stxssa/Makefile | 9 | ||||
| -rw-r--r-- | board/stxssa/ddr.c | 70 | ||||
| -rw-r--r-- | board/stxssa/stxssa.c | 6 | ||||
| -rw-r--r-- | board/stxssa/u-boot.lds | 1 |
4 files changed, 81 insertions, 5 deletions
diff --git a/board/stxssa/Makefile b/board/stxssa/Makefile index e29cf95..9ab41ec 100644 --- a/board/stxssa/Makefile +++ b/board/stxssa/Makefile @@ -25,10 +25,13 @@ 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/stxssa/ddr.c b/board/stxssa/ddr.c new file mode 100644 index 0000000..45372f4 --- /dev/null +++ b/board/stxssa/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/stxssa/stxssa.c b/board/stxssa/stxssa.c index 2c4b546..124e123 100644 --- a/board/stxssa/stxssa.c +++ b/board/stxssa/stxssa.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> @@ -308,7 +310,9 @@ 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/stxssa/u-boot.lds b/board/stxssa/u-boot.lds index b0a9d68..93bedda 100644 --- a/board/stxssa/u-boot.lds +++ b/board/stxssa/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) |