diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc83xx')
| -rw-r--r-- | arch/powerpc/cpu/mpc83xx/Makefile | 20 | ||||
| -rw-r--r-- | arch/powerpc/cpu/mpc83xx/ecc.c | 18 | ||||
| -rw-r--r-- | arch/powerpc/cpu/mpc83xx/law.c | 61 | ||||
| -rw-r--r-- | arch/powerpc/cpu/mpc83xx/speed.c | 9 |
4 files changed, 102 insertions, 6 deletions
diff --git a/arch/powerpc/cpu/mpc83xx/Makefile b/arch/powerpc/cpu/mpc83xx/Makefile index 3979b6f..b353036 100644 --- a/arch/powerpc/cpu/mpc83xx/Makefile +++ b/arch/powerpc/cpu/mpc83xx/Makefile @@ -34,7 +34,6 @@ COBJS-y += cpu.o COBJS-y += cpu_init.o COBJS-y += speed.o COBJS-y += interrupts.o -COBJS-y += spd_sdram.o COBJS-y += ecc.o COBJS-$(CONFIG_QE) += qe_io.o COBJS-$(CONFIG_FSL_SERDES) += serdes.o @@ -42,6 +41,13 @@ COBJS-$(CONFIG_PCI) += pci.o COBJS-$(CONFIG_PCIE) += pcie.o COBJS-$(CONFIG_OF_LIBFDT) += fdt.o +ifdef CONFIG_FSL_DDR2 +COBJS-$(CONFIG_MPC8349) += ddr-gen2.o +else +COBJS-y += spd_sdram.o +endif +COBJS-$(CONFIG_FSL_DDR2) += law.o + COBJS := $(COBJS-y) SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) @@ -52,6 +58,18 @@ all: $(obj).depend $(START) $(LIB) $(LIB): $(OBJS) $(call cmd_link_o_target, $(OBJS)) +$(obj)ddr-gen1.c: + @rm -f $(obj)ddr-gen1.c + ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/ddr-gen1.c $(obj)ddr-gen1.c + +$(obj)ddr-gen2.c: + @rm -f $(obj)ddr-gen2.c + ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/ddr-gen2.c $(obj)ddr-gen2.c + +$(obj)ddr-gen3.c: + @rm -f $(obj)ddr-gen3.c + ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/ddr-gen3.c $(obj)ddr-gen3.c + ######################################################################### # defines $(obj).depend target diff --git a/arch/powerpc/cpu/mpc83xx/ecc.c b/arch/powerpc/cpu/mpc83xx/ecc.c index f8eab96..717365c 100644 --- a/arch/powerpc/cpu/mpc83xx/ecc.c +++ b/arch/powerpc/cpu/mpc83xx/ecc.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2007 Freescale Semiconductor, Inc. + * Copyright (C) 2007-2011 Freescale Semiconductor, Inc. * * Dave Liu <daveliu@freescale.com> * based on the contribution of Marian Balakowicz <m8@semihalf.com> @@ -20,8 +20,12 @@ #if defined(CONFIG_DDR_ECC) && defined(CONFIG_DDR_ECC_CMD) void ecc_print_status(void) { - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile ddr83xx_t *ddr = &immap->ddr; + immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; +#ifdef CONFIG_FSL_DDR2 + ccsr_ddr_t *ddr = &immap->ddr; +#else + ddr83xx_t *ddr = &immap->ddr; +#endif printf("\nECC mode: %s\n\n", (ddr->sdram_cfg & SDRAM_CFG_ECC_EN) ? "ON" : "OFF"); @@ -100,8 +104,12 @@ void ecc_print_status(void) int do_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) { - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile ddr83xx_t *ddr = &immap->ddr; + immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; +#ifdef CONFIG_FSL_DDR2 + ccsr_ddr_t *ddr = &immap->ddr; +#else + ddr83xx_t *ddr = &immap->ddr; +#endif volatile u32 val; u64 *addr; u32 count; diff --git a/arch/powerpc/cpu/mpc83xx/law.c b/arch/powerpc/cpu/mpc83xx/law.c new file mode 100644 index 0000000..66c88b6 --- /dev/null +++ b/arch/powerpc/cpu/mpc83xx/law.c @@ -0,0 +1,61 @@ +/* + * Copyright 2011 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 <asm/fsl_law.h> +#include <asm/mmu.h> + +int set_ddr_laws(u64 start, u64 sz, enum law_trgt_if id) +{ + immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; + law83xx_t *ecm = &immap->sysconf.ddrlaw[0]; + u64 start_align, law_sz; + int law_sz_enc; + + if (start == 0) + start_align = 1ull << (LAW_SIZE_2G + 1); + else + start_align = 1ull << (ffs64(start) - 1); + law_sz = min(start_align, sz); + law_sz_enc = __ilog2_u64(law_sz) - 1; + + /* + * Set up LAWBAR for all of DDR. + */ + ecm->bar = start & 0xfffff000; + ecm->ar = (LAWAR_EN | (id << 20) | (LAWAR_SIZE & law_sz_enc)); + debug("DDR:bar=0x%08x\n", ecm->bar); + debug("DDR:ar=0x%08x\n", ecm->ar); + + /* recalculate size based on what was actually covered by the law */ + law_sz = 1ull << __ilog2_u64(law_sz); + + /* do we still have anything to map */ + sz = sz - law_sz; + if (sz) { + start += law_sz; + + start_align = 1ull << (ffs64(start) - 1); + law_sz = min(start_align, sz); + law_sz_enc = __ilog2_u64(law_sz) - 1; + ecm = &immap->sysconf.ddrlaw[1]; + ecm->bar = start & 0xfffff000; + ecm->ar = (LAWAR_EN | (id << 20) | (LAWAR_SIZE & law_sz_enc)); + debug("DDR:bar=0x%08x\n", ecm->bar); + debug("DDR:ar=0x%08x\n", ecm->ar); + } else { + return 0; + } + + /* do we still have anything to map */ + sz = sz - law_sz; + if (sz) + return 1; + + return 0; +} diff --git a/arch/powerpc/cpu/mpc83xx/speed.c b/arch/powerpc/cpu/mpc83xx/speed.c index 4542ab1..f78099d 100644 --- a/arch/powerpc/cpu/mpc83xx/speed.c +++ b/arch/powerpc/cpu/mpc83xx/speed.c @@ -507,6 +507,15 @@ ulong get_bus_freq(ulong dummy) return gd->csb_clk; } +/******************************************** + * get_ddr_freq + * return ddr bus freq in Hz + *********************************************/ +ulong get_ddr_freq(ulong dummy) +{ + return gd->mem_clk; +} + int do_clocks (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) { char buf[32]; |