diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/freescale/mpc837xemds/Makefile | 50 | ||||
| -rw-r--r-- | board/freescale/mpc837xemds/config.mk | 28 | ||||
| -rw-r--r-- | board/freescale/mpc837xemds/mpc837xemds.c | 144 | ||||
| -rw-r--r-- | board/freescale/mpc837xemds/pci.c | 65 |
4 files changed, 287 insertions, 0 deletions
diff --git a/board/freescale/mpc837xemds/Makefile b/board/freescale/mpc837xemds/Makefile new file mode 100644 index 0000000..5ec7a87 --- /dev/null +++ b/board/freescale/mpc837xemds/Makefile @@ -0,0 +1,50 @@ +# +# (C) Copyright 2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(BOARD).a + +COBJS := $(BOARD).o pci.o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(obj).depend $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak .depend + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/board/freescale/mpc837xemds/config.mk b/board/freescale/mpc837xemds/config.mk new file mode 100644 index 0000000..63c5fc3 --- /dev/null +++ b/board/freescale/mpc837xemds/config.mk @@ -0,0 +1,28 @@ +# +# (C) Copyright 2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +# +# MPC837xEMDS +# + +TEXT_BASE = 0xFE000000 diff --git a/board/freescale/mpc837xemds/mpc837xemds.c b/board/freescale/mpc837xemds/mpc837xemds.c new file mode 100644 index 0000000..0e4ec02 --- /dev/null +++ b/board/freescale/mpc837xemds/mpc837xemds.c @@ -0,0 +1,144 @@ +/* + * Copyright (C) 2007 Freescale Semiconductor, Inc. + * Dave Liu <daveliu@freescale.com> + * + * CREDITS: Kim Phillips contribute to LIBFDT code + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + */ + +#include <common.h> +#include <i2c.h> +#include <spd.h> +#if defined(CONFIG_SPD_EEPROM) +#include <spd_sdram.h> +#endif +#if defined(CONFIG_OF_FLAT_TREE) +#include <ft_build.h> +#elif defined(CONFIG_OF_LIBFDT) +#include <libfdt.h> +#endif +#if defined(CONFIG_PQ_MDS_PIB) +#include "../common/pq-mds-pib.h" +#endif + +int board_early_init_f(void) +{ + u8 *bcsr = (u8 *)CFG_BCSR; + + /* Enable flash write */ + bcsr[0x9] &= ~0x04; + /* Clear all of the interrupt of BCSR */ + bcsr[0xe] = 0xff; + + return 0; +} + +int board_early_init_r(void) +{ +#ifdef CONFIG_PQ_MDS_PIB + pib_init(); +#endif + return 0; +} + +#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRC) +extern void ddr_enable_ecc(unsigned int dram_size); +#endif +int fixed_sdram(void); + +long int initdram(int board_type) +{ + volatile immap_t *im = (immap_t *) CFG_IMMR; + u32 msize = 0; + + if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im) + return -1; + +#if defined(CONFIG_SPD_EEPROM) + msize = spd_sdram(); +#else + msize = fixed_sdram(); +#endif + +#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRC) + /* Initialize DDR ECC byte */ + ddr_enable_ecc(msize * 1024 * 1024); +#endif + + /* return total bus DDR size(bytes) */ + return (msize * 1024 * 1024); +} + +#if !defined(CONFIG_SPD_EEPROM) +/************************************************************************* + * fixed sdram init -- doesn't use serial presence detect. + ************************************************************************/ +int fixed_sdram(void) +{ + volatile immap_t *im = (immap_t *) CFG_IMMR; + u32 msize = CFG_DDR_SIZE * 1024 * 1024; + u32 msize_log2 = __ilog2(msize); + + im->sysconf.ddrlaw[0].bar = CFG_DDR_SDRAM_BASE >> 12; + im->sysconf.ddrlaw[0].ar = LBLAWAR_EN | (msize_log2 - 1); + +#if (CFG_DDR_SIZE != 512) +#warning Currenly any ddr size other than 512 is not supported +#endif + im->sysconf.ddrcdr = CFG_DDRCDR_VALUE; + udelay(50000); + + im->ddr.sdram_clk_cntl = CFG_DDR_SDRAM_CLK_CNTL; + udelay(1000); + + im->ddr.csbnds[0].csbnds = CFG_DDR_CS0_BNDS; + im->ddr.cs_config[0] = CFG_DDR_CS0_CONFIG; + udelay(1000); + + im->ddr.timing_cfg_0 = CFG_DDR_TIMING_0; + im->ddr.timing_cfg_1 = CFG_DDR_TIMING_1; + im->ddr.timing_cfg_2 = CFG_DDR_TIMING_2; + im->ddr.timing_cfg_3 = CFG_DDR_TIMING_3; + im->ddr.sdram_cfg = CFG_DDR_SDRAM_CFG; + im->ddr.sdram_cfg2 = CFG_DDR_SDRAM_CFG2; + im->ddr.sdram_mode = CFG_DDR_MODE; + im->ddr.sdram_mode2 = CFG_DDR_MODE2; + im->ddr.sdram_interval = CFG_DDR_INTERVAL; + __asm__ __volatile__("sync"); + udelay(1000); + + im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN; + udelay(2000); + return CFG_DDR_SIZE; +} +#endif /*!CFG_SPD_EEPROM */ + +int checkboard(void) +{ + puts("Board: Freescale MPC837xEMDS\n"); + return 0; +} + +#if defined(CONFIG_OF_BOARD_SETUP) +void ft_board_setup(void *blob, bd_t *bd) +{ +#if defined(CONFIG_OF_FLAT_TREE) + u32 *p; + int len; + + p = ft_get_prop(blob, "/memory/reg", &len); + if (p != NULL) { + *p++ = cpu_to_be32(bd->bi_memstart); + *p = cpu_to_be32(bd->bi_memsize); + } +#endif + ft_cpu_setup(blob, bd); +#ifdef CONFIG_PCI + ft_pci_setup(blob, bd); +#endif +} +#endif /* CONFIG_OF_BOARD_SETUP */ diff --git a/board/freescale/mpc837xemds/pci.c b/board/freescale/mpc837xemds/pci.c new file mode 100644 index 0000000..ab90979 --- /dev/null +++ b/board/freescale/mpc837xemds/pci.c @@ -0,0 +1,65 @@ +/* + * Copyright (C) 2007 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + */ + +#include <asm/mmu.h> +#include <asm/io.h> +#include <common.h> +#include <mpc83xx.h> +#include <pci.h> +#include <i2c.h> +#include <asm/fsl_i2c.h> + +#if defined(CONFIG_PCI) +static struct pci_region pci_regions[] = { + { + bus_start: CFG_PCI_MEM_BASE, + phys_start: CFG_PCI_MEM_PHYS, + size: CFG_PCI_MEM_SIZE, + flags: PCI_REGION_MEM | PCI_REGION_PREFETCH + }, + { + bus_start: CFG_PCI_MMIO_BASE, + phys_start: CFG_PCI_MMIO_PHYS, + size: CFG_PCI_MMIO_SIZE, + flags: PCI_REGION_MEM + }, + { + bus_start: CFG_PCI_IO_BASE, + phys_start: CFG_PCI_IO_PHYS, + size: CFG_PCI_IO_SIZE, + flags: PCI_REGION_IO + } +}; + +void pci_init_board(void) +{ + volatile immap_t *immr = (volatile immap_t *)CFG_IMMR; + volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk; + volatile law83xx_t *pci_law = immr->sysconf.pcilaw; + struct pci_region *reg[] = { pci_regions }; + + /* Enable all 5 PCI_CLK_OUTPUTS */ + clk->occr |= 0xf8000000; + udelay(2000); + + /* Configure PCI Local Access Windows */ + pci_law[0].bar = CFG_PCI_MEM_PHYS & LAWBAR_BAR; + pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB; + + pci_law[1].bar = CFG_PCI_IO_PHYS & LAWBAR_BAR; + pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB; + + udelay(2000); + + mpc83xx_pci_init(1, reg, 0); +} +#endif /* CONFIG_PCI */ |