From 91e25769771c1164ed63ffca0add49f934ae3343 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Tue, 16 Jan 2007 11:38:14 -0500 Subject: mpc83xx: U-Boot support for Wind River SBC8349 I've redone the SBC8349 support to match git-current, which incorporates all the MPC834x updates from Freescale since the 1.1.6 release, including the DDR changes. I've kept all the SBC8349 files as parallel as possible to the MPC8349EMDS ones for ease of maintenance and to allow for easy inspection of what was changed to support this board. Hence the SBC8349 U-Boot has FDT support and everything else that the MPC8349EMDS has. Fortunately the Freescale updates added support for boards using CS0, but I had to change spd_sdram.c to allow for board specific settings for the sdram_clk_cntl (it is/was hard coded to zero, and that remains the default if the board doesn't specify a value.) Hopefully this should be mergeable as-is and require no whitespace cleanups or similar, but if something doesn't measure up then let me know and I'll fix it. Thanks, Paul. --- board/sbc8349/Makefile | 49 ++++ board/sbc8349/config.mk | 27 +++ board/sbc8349/pci.c | 348 ++++++++++++++++++++++++++++ board/sbc8349/sbc8349.c | 585 +++++++++++++++++++++++++++++++++++++++++++++++ board/sbc8349/u-boot.lds | 125 ++++++++++ 5 files changed, 1134 insertions(+) create mode 100644 board/sbc8349/Makefile create mode 100644 board/sbc8349/config.mk create mode 100644 board/sbc8349/pci.c create mode 100644 board/sbc8349/sbc8349.c create mode 100644 board/sbc8349/u-boot.lds (limited to 'board/sbc8349') diff --git a/board/sbc8349/Makefile b/board/sbc8349/Makefile new file mode 100644 index 0000000..02cf569 --- /dev/null +++ b/board/sbc8349/Makefile @@ -0,0 +1,49 @@ +# +# Copyright (c) 2006 Wind River Systems, 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. +# +# 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/sbc8349/config.mk b/board/sbc8349/config.mk new file mode 100644 index 0000000..05fa5a0 --- /dev/null +++ b/board/sbc8349/config.mk @@ -0,0 +1,27 @@ +# +# Copyright (c) 2006 Wind River Systems, 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. +# +# 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 +# + +# +# SBC8349E +# + +TEXT_BASE = 0xFFF00000 diff --git a/board/sbc8349/pci.c b/board/sbc8349/pci.c new file mode 100644 index 0000000..eadf230 --- /dev/null +++ b/board/sbc8349/pci.c @@ -0,0 +1,348 @@ +/* + * pci.c -- WindRiver SBC8349 PCI board support. + * Copyright (c) 2006 Wind River Systems, Inc. + * + * Based on MPC8349 PCI support but w/o PIB related code. + * + * 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 +#include +#include +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +#ifdef CONFIG_PCI + +/* System RAM mapped to PCI space */ +#define CONFIG_PCI_SYS_MEM_BUS CFG_SDRAM_BASE +#define CONFIG_PCI_SYS_MEM_PHYS CFG_SDRAM_BASE + +#ifndef CONFIG_PCI_PNP +static struct pci_config_table pci_mpc8349emds_config_table[] = { + {PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, + PCI_IDSEL_NUMBER, PCI_ANY_ID, + pci_cfgfunc_config_device, {PCI_ENET0_IOADDR, + PCI_ENET0_MEMADDR, + PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER + } + }, + {} +}; +#endif + +static struct pci_controller pci_hose[] = { + { +#ifndef CONFIG_PCI_PNP + config_table:pci_mpc8349emds_config_table, +#endif + }, + { +#ifndef CONFIG_PCI_PNP + config_table:pci_mpc8349emds_config_table, +#endif + } +}; + +/************************************************************************** + * pci_init_board() + * + * NOTICE: PCI2 is not supported. There is only one + * physical PCI slot on the board. + * + */ +void +pci_init_board(void) +{ + volatile immap_t * immr; + volatile clk83xx_t * clk; + volatile law83xx_t * pci_law; + volatile pot83xx_t * pci_pot; + volatile pcictrl83xx_t * pci_ctrl; + volatile pciconf83xx_t * pci_conf; + u16 reg16; + u32 reg32; + u32 dev; + struct pci_controller * hose; + + immr = (immap_t *)CFG_IMMR; + clk = (clk83xx_t *)&immr->clk; + pci_law = immr->sysconf.pcilaw; + pci_pot = immr->ios.pot; + pci_ctrl = immr->pci_ctrl; + pci_conf = immr->pci_conf; + + hose = &pci_hose[0]; + + /* + * Configure PCI controller and PCI_CLK_OUTPUT both in 66M mode + */ + + reg32 = clk->occr; + udelay(2000); + clk->occr = 0xff000000; + udelay(2000); + + /* + * Release PCI RST Output signal + */ + pci_ctrl[0].gcr = 0; + udelay(2000); + pci_ctrl[0].gcr = 1; + +#ifdef CONFIG_MPC83XX_PCI2 + pci_ctrl[1].gcr = 0; + udelay(2000); + pci_ctrl[1].gcr = 1; +#endif + + /* We need to wait at least a 1sec based on PCI specs */ + { + int i; + + for (i = 0; i < 1000; ++i) + udelay (1000); + } + + /* + * Configure PCI Local Access Windows + */ + pci_law[0].bar = CFG_PCI1_MEM_PHYS & LAWBAR_BAR; + pci_law[0].ar = LAWAR_EN | LAWAR_SIZE_1G; + + pci_law[1].bar = CFG_PCI1_IO_PHYS & LAWBAR_BAR; + pci_law[1].ar = LAWAR_EN | LAWAR_SIZE_4M; + + /* + * Configure PCI Outbound Translation Windows + */ + + /* PCI1 mem space - prefetch */ + pci_pot[0].potar = (CFG_PCI1_MEM_BASE >> 12) & POTAR_TA_MASK; + pci_pot[0].pobar = (CFG_PCI1_MEM_PHYS >> 12) & POBAR_BA_MASK; + pci_pot[0].pocmr = POCMR_EN | POCMR_PREFETCH_EN | (POCMR_CM_256M & POCMR_CM_MASK); + + /* PCI1 IO space */ + pci_pot[1].potar = (CFG_PCI1_IO_BASE >> 12) & POTAR_TA_MASK; + pci_pot[1].pobar = (CFG_PCI1_IO_PHYS >> 12) & POBAR_BA_MASK; + pci_pot[1].pocmr = POCMR_EN | POCMR_IO | (POCMR_CM_1M & POCMR_CM_MASK); + + /* PCI1 mmio - non-prefetch mem space */ + pci_pot[2].potar = (CFG_PCI1_MMIO_BASE >> 12) & POTAR_TA_MASK; + pci_pot[2].pobar = (CFG_PCI1_MMIO_PHYS >> 12) & POBAR_BA_MASK; + pci_pot[2].pocmr = POCMR_EN | (POCMR_CM_256M & POCMR_CM_MASK); + + /* + * Configure PCI Inbound Translation Windows + */ + + /* we need RAM mapped to PCI space for the devices to + * access main memory */ + pci_ctrl[0].pitar1 = 0x0; + pci_ctrl[0].pibar1 = 0x0; + pci_ctrl[0].piebar1 = 0x0; + pci_ctrl[0].piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP | (__ilog2(gd->ram_size) - 1); + + hose->first_busno = 0; + hose->last_busno = 0xff; + + /* PCI memory prefetch space */ + pci_set_region(hose->regions + 0, + CFG_PCI1_MEM_BASE, + CFG_PCI1_MEM_PHYS, + CFG_PCI1_MEM_SIZE, + PCI_REGION_MEM|PCI_REGION_PREFETCH); + + /* PCI memory space */ + pci_set_region(hose->regions + 1, + CFG_PCI1_MMIO_BASE, + CFG_PCI1_MMIO_PHYS, + CFG_PCI1_MMIO_SIZE, + PCI_REGION_MEM); + + /* PCI IO space */ + pci_set_region(hose->regions + 2, + CFG_PCI1_IO_BASE, + CFG_PCI1_IO_PHYS, + CFG_PCI1_IO_SIZE, + PCI_REGION_IO); + + /* System memory space */ + pci_set_region(hose->regions + 3, + CONFIG_PCI_SYS_MEM_BUS, + CONFIG_PCI_SYS_MEM_PHYS, + gd->ram_size, + PCI_REGION_MEM | PCI_REGION_MEMORY); + + hose->region_count = 4; + + pci_setup_indirect(hose, + (CFG_IMMR+0x8300), + (CFG_IMMR+0x8304)); + + pci_register_hose(hose); + + /* + * Write to Command register + */ + reg16 = 0xff; + dev = PCI_BDF(hose->first_busno, 0, 0); + pci_hose_read_config_word (hose, dev, PCI_COMMAND, ®16); + reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; + pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16); + + /* + * Clear non-reserved bits in status register. + */ + pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff); + pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80); + pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08); + +#ifdef CONFIG_PCI_SCAN_SHOW + printf("PCI: Bus Dev VenId DevId Class Int\n"); +#endif + /* + * Hose scan. + */ + hose->last_busno = pci_hose_scan(hose); + +#ifdef CONFIG_MPC83XX_PCI2 + hose = &pci_hose[1]; + + /* + * Configure PCI Outbound Translation Windows + */ + + /* PCI2 mem space - prefetch */ + pci_pot[3].potar = (CFG_PCI2_MEM_BASE >> 12) & POTAR_TA_MASK; + pci_pot[3].pobar = (CFG_PCI2_MEM_PHYS >> 12) & POBAR_BA_MASK; + pci_pot[3].pocmr = POCMR_EN | POCMR_PCI2 | POCMR_PREFETCH_EN | (POCMR_CM_256M & POCMR_CM_MASK); + + /* PCI2 IO space */ + pci_pot[4].potar = (CFG_PCI2_IO_BASE >> 12) & POTAR_TA_MASK; + pci_pot[4].pobar = (CFG_PCI2_IO_PHYS >> 12) & POBAR_BA_MASK; + pci_pot[4].pocmr = POCMR_EN | POCMR_PCI2 | POCMR_IO | (POCMR_CM_1M & POCMR_CM_MASK); + + /* PCI2 mmio - non-prefetch mem space */ + pci_pot[5].potar = (CFG_PCI2_MMIO_BASE >> 12) & POTAR_TA_MASK; + pci_pot[5].pobar = (CFG_PCI2_MMIO_PHYS >> 12) & POBAR_BA_MASK; + pci_pot[5].pocmr = POCMR_EN | POCMR_PCI2 | (POCMR_CM_256M & POCMR_CM_MASK); + + /* + * Configure PCI Inbound Translation Windows + */ + + /* we need RAM mapped to PCI space for the devices to + * access main memory */ + pci_ctrl[1].pitar1 = 0x0; + pci_ctrl[1].pibar1 = 0x0; + pci_ctrl[1].piebar1 = 0x0; + pci_ctrl[1].piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP | (__ilog2(gd->ram_size) - 1); + + hose->first_busno = pci_hose[0].last_busno + 1; + hose->last_busno = 0xff; + + /* PCI memory prefetch space */ + pci_set_region(hose->regions + 0, + CFG_PCI2_MEM_BASE, + CFG_PCI2_MEM_PHYS, + CFG_PCI2_MEM_SIZE, + PCI_REGION_MEM|PCI_REGION_PREFETCH); + + /* PCI memory space */ + pci_set_region(hose->regions + 1, + CFG_PCI2_MMIO_BASE, + CFG_PCI2_MMIO_PHYS, + CFG_PCI2_MMIO_SIZE, + PCI_REGION_MEM); + + /* PCI IO space */ + pci_set_region(hose->regions + 2, + CFG_PCI2_IO_BASE, + CFG_PCI2_IO_PHYS, + CFG_PCI2_IO_SIZE, + PCI_REGION_IO); + + /* System memory space */ + pci_set_region(hose->regions + 3, + CONFIG_PCI_SYS_MEM_BUS, + CONFIG_PCI_SYS_MEM_PHYS, + gd->ram_size, + PCI_REGION_MEM | PCI_REGION_MEMORY); + + hose->region_count = 4; + + pci_setup_indirect(hose, + (CFG_IMMR+0x8380), + (CFG_IMMR+0x8384)); + + pci_register_hose(hose); + + /* + * Write to Command register + */ + reg16 = 0xff; + dev = PCI_BDF(hose->first_busno, 0, 0); + pci_hose_read_config_word (hose, dev, PCI_COMMAND, ®16); + reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; + pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16); + + /* + * Clear non-reserved bits in status register. + */ + pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff); + pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80); + pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08); + + /* + * Hose scan. + */ + hose->last_busno = pci_hose_scan(hose); +#endif + +} + +#ifdef CONFIG_OF_FLAT_TREE +void +ft_pci_setup(void *blob, bd_t *bd) +{ + u32 *p; + int len; + + p = (u32 *)ft_get_prop(blob, "/" OF_SOC "/pci@8500/bus-range", &len); + if (p != NULL) { + p[0] = pci_hose[0].first_busno; + p[1] = pci_hose[0].last_busno; + } + +#ifdef CONFIG_MPC83XX_PCI2 + p = (u32 *)ft_get_prop(blob, "/" OF_SOC "/pci@8600/bus-range", &len); + if (p != NULL) { + p[0] = pci_hose[1].first_busno; + p[1] = pci_hose[1].last_busno; + } +#endif +} +#endif /* CONFIG_OF_FLAT_TREE */ +#endif /* CONFIG_PCI */ diff --git a/board/sbc8349/sbc8349.c b/board/sbc8349/sbc8349.c new file mode 100644 index 0000000..4cd447e --- /dev/null +++ b/board/sbc8349/sbc8349.c @@ -0,0 +1,585 @@ +/* + * sbc8349.c -- WindRiver SBC8349 board support. + * Copyright (c) 2006-2007 Wind River Systems, Inc. + * + * Paul Gortmaker + * Based on board/mpc8349emds/mpc8349emds.c (and previous 834x releases.) + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#if defined(CONFIG_SPD_EEPROM) +#include +#endif +#if defined(CONFIG_OF_FLAT_TREE) +#include +#endif + +int fixed_sdram(void); +void sdram_init(void); + +#if defined(CONFIG_DDR_ECC) && defined(CONFIG_MPC83XX) +void ddr_enable_ecc(unsigned int dram_size); +#endif + +#ifdef CONFIG_BOARD_EARLY_INIT_F +int board_early_init_f (void) +{ + return 0; +} +#endif + +#define ns2clk(ns) (ns / (1000000000 / CONFIG_8349_CLKIN) + 1) + +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; + + puts("Initializing\n"); + + /* DDR SDRAM - Main SODIMM */ + im->sysconf.ddrlaw[0].bar = CFG_DDR_BASE & LAWBAR_BAR; +#if defined(CONFIG_SPD_EEPROM) + msize = spd_sdram(); +#else + msize = fixed_sdram(); +#endif + /* + * Initialize SDRAM if it is on local bus. + */ + sdram_init(); + +#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) + /* + * Initialize and enable DDR ECC. + */ + ddr_enable_ecc(msize * 1024 * 1024); +#endif + puts(" DDR RAM: "); + /* return total bus SDRAM size(bytes) -- DDR */ + 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 = 0; + u32 ddr_size; + u32 ddr_size_log2; + + msize = CFG_DDR_SIZE; + for (ddr_size = msize << 20, ddr_size_log2 = 0; + (ddr_size > 1); + ddr_size = ddr_size>>1, ddr_size_log2++) { + if (ddr_size & 1) { + return -1; + } + } + im->sysconf.ddrlaw[0].bar = ((CFG_DDR_SDRAM_BASE>>12) & 0xfffff); + im->sysconf.ddrlaw[0].ar = LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE); + +#if (CFG_DDR_SIZE != 256) +#warning Currently any ddr size other than 256 is not supported +#endif + im->ddr.csbnds[2].csbnds = 0x0000000f; + im->ddr.cs_config[2] = CFG_DDR_CONFIG; + + /* currently we use only one CS, so disable the other banks */ + im->ddr.cs_config[0] = 0; + im->ddr.cs_config[1] = 0; + im->ddr.cs_config[3] = 0; + + im->ddr.timing_cfg_1 = CFG_DDR_TIMING_1; + im->ddr.timing_cfg_2 = CFG_DDR_TIMING_2; + + im->ddr.sdram_cfg = + SDRAM_CFG_SREN +#if defined(CONFIG_DDR_2T_TIMING) + | SDRAM_CFG_2T_EN +#endif + | 2 << SDRAM_CFG_SDRAM_TYPE_SHIFT; +#if defined (CONFIG_DDR_32BIT) + /* for 32-bit mode burst length is 8 */ + im->ddr.sdram_cfg |= (SDRAM_CFG_32_BE | SDRAM_CFG_8_BE); +#endif + im->ddr.sdram_mode = CFG_DDR_MODE; + + im->ddr.sdram_interval = CFG_DDR_INTERVAL; + udelay(200); + + /* enable DDR controller */ + im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN; + return msize; +} +#endif/*!CFG_SPD_EEPROM*/ + + +int checkboard (void) +{ + puts("Board: Wind River SBC834x\n"); + return 0; +} + +/* + * if board is fitted with SDRAM + */ +#if defined(CFG_BR2_PRELIM) \ + && defined(CFG_OR2_PRELIM) \ + && defined(CFG_LBLAWBAR2_PRELIM) \ + && defined(CFG_LBLAWAR2_PRELIM) +/* + * Initialize SDRAM memory on the Local Bus. + */ + +void sdram_init(void) +{ + volatile immap_t *immap = (immap_t *)CFG_IMMR; + volatile lbus83xx_t *lbc= &immap->lbus; + uint *sdram_addr = (uint *)CFG_LBC_SDRAM_BASE; + + puts("\n SDRAM on Local Bus: "); + print_size (CFG_LBC_SDRAM_SIZE * 1024 * 1024, "\n"); + + /* + * Setup SDRAM Base and Option Registers, already done in cpu_init.c + */ + + /* setup mtrpt, lsrt and lbcr for LB bus */ + lbc->lbcr = CFG_LBC_LBCR; + lbc->mrtpr = CFG_LBC_MRTPR; + lbc->lsrt = CFG_LBC_LSRT; + asm("sync"); + + /* + * Configure the SDRAM controller Machine Mode Register. + */ + lbc->lsdmr = CFG_LBC_LSDMR_5; /* 0x40636733; normal operation */ + + lbc->lsdmr = CFG_LBC_LSDMR_1; /* 0x68636733; precharge all the banks */ + asm("sync"); + *sdram_addr = 0xff; + udelay(100); + + lbc->lsdmr = CFG_LBC_LSDMR_2; /* 0x48636733; auto refresh */ + asm("sync"); + /*1 times*/ + *sdram_addr = 0xff; + udelay(100); + /*2 times*/ + *sdram_addr = 0xff; + udelay(100); + /*3 times*/ + *sdram_addr = 0xff; + udelay(100); + /*4 times*/ + *sdram_addr = 0xff; + udelay(100); + /*5 times*/ + *sdram_addr = 0xff; + udelay(100); + /*6 times*/ + *sdram_addr = 0xff; + udelay(100); + /*7 times*/ + *sdram_addr = 0xff; + udelay(100); + /*8 times*/ + *sdram_addr = 0xff; + udelay(100); + + /* 0x58636733; mode register write operation */ + lbc->lsdmr = CFG_LBC_LSDMR_4; + asm("sync"); + *sdram_addr = 0xff; + udelay(100); + + lbc->lsdmr = CFG_LBC_LSDMR_5; /* 0x40636733; normal operation */ + asm("sync"); + *sdram_addr = 0xff; + udelay(100); +} +#else +void sdram_init(void) +{ + puts(" SDRAM on Local Bus: Disabled in config\n"); +} +#endif + +#if defined(CONFIG_DDR_ECC) && defined(CONFIG_DDR_ECC_CMD) +/* + * ECC user commands + */ +void ecc_print_status(void) +{ + volatile immap_t *immap = (immap_t *)CFG_IMMR; + volatile ddr83xx_t *ddr = &immap->ddr; + + printf("\nECC mode: %s\n\n", (ddr->sdram_cfg & SDRAM_CFG_ECC_EN) ? "ON" : "OFF"); + + /* Interrupts */ + printf("Memory Error Interrupt Enable:\n"); + printf(" Multiple-Bit Error Interrupt Enable: %d\n", + (ddr->err_int_en & ECC_ERR_INT_EN_MBEE) ? 1 : 0); + printf(" Single-Bit Error Interrupt Enable: %d\n", + (ddr->err_int_en & ECC_ERR_INT_EN_SBEE) ? 1 : 0); + printf(" Memory Select Error Interrupt Enable: %d\n\n", + (ddr->err_int_en & ECC_ERR_INT_EN_MSEE) ? 1 : 0); + + /* Error disable */ + printf("Memory Error Disable:\n"); + printf(" Multiple-Bit Error Disable: %d\n", + (ddr->err_disable & ECC_ERROR_DISABLE_MBED) ? 1 : 0); + printf(" Sinle-Bit Error Disable: %d\n", + (ddr->err_disable & ECC_ERROR_DISABLE_SBED) ? 1 : 0); + printf(" Memory Select Error Disable: %d\n\n", + (ddr->err_disable & ECC_ERROR_DISABLE_MSED) ? 1 : 0); + + /* Error injection */ + printf("Memory Data Path Error Injection Mask High/Low: %08lx %08lx\n", + ddr->data_err_inject_hi, ddr->data_err_inject_lo); + + printf("Memory Data Path Error Injection Mask ECC:\n"); + printf(" ECC Mirror Byte: %d\n", + (ddr->ecc_err_inject & ECC_ERR_INJECT_EMB) ? 1 : 0); + printf(" ECC Injection Enable: %d\n", + (ddr->ecc_err_inject & ECC_ERR_INJECT_EIEN) ? 1 : 0); + printf(" ECC Error Injection Mask: 0x%02x\n\n", + ddr->ecc_err_inject & ECC_ERR_INJECT_EEIM); + + /* SBE counter/threshold */ + printf("Memory Single-Bit Error Management (0..255):\n"); + printf(" Single-Bit Error Threshold: %d\n", + (ddr->err_sbe & ECC_ERROR_MAN_SBET) >> ECC_ERROR_MAN_SBET_SHIFT); + printf(" Single-Bit Error Counter: %d\n\n", + (ddr->err_sbe & ECC_ERROR_MAN_SBEC) >> ECC_ERROR_MAN_SBEC_SHIFT); + + /* Error detect */ + printf("Memory Error Detect:\n"); + printf(" Multiple Memory Errors: %d\n", + (ddr->err_detect & ECC_ERROR_DETECT_MME) ? 1 : 0); + printf(" Multiple-Bit Error: %d\n", + (ddr->err_detect & ECC_ERROR_DETECT_MBE) ? 1 : 0); + printf(" Single-Bit Error: %d\n", + (ddr->err_detect & ECC_ERROR_DETECT_SBE) ? 1 : 0); + printf(" Memory Select Error: %d\n\n", + (ddr->err_detect & ECC_ERROR_DETECT_MSE) ? 1 : 0); + + /* Capture data */ + printf("Memory Error Address Capture: 0x%08lx\n", ddr->capture_address); + printf("Memory Data Path Read Capture High/Low: %08lx %08lx\n", + ddr->capture_data_hi, ddr->capture_data_lo); + printf("Memory Data Path Read Capture ECC: 0x%02x\n\n", + ddr->capture_ecc & CAPTURE_ECC_ECE); + + printf("Memory Error Attributes Capture:\n"); + printf(" Data Beat Number: %d\n", + (ddr->capture_attributes & ECC_CAPT_ATTR_BNUM) >> ECC_CAPT_ATTR_BNUM_SHIFT); + printf(" Transaction Size: %d\n", + (ddr->capture_attributes & ECC_CAPT_ATTR_TSIZ) >> ECC_CAPT_ATTR_TSIZ_SHIFT); + printf(" Transaction Source: %d\n", + (ddr->capture_attributes & ECC_CAPT_ATTR_TSRC) >> ECC_CAPT_ATTR_TSRC_SHIFT); + printf(" Transaction Type: %d\n", + (ddr->capture_attributes & ECC_CAPT_ATTR_TTYP) >> ECC_CAPT_ATTR_TTYP_SHIFT); + printf(" Error Information Valid: %d\n\n", + ddr->capture_attributes & ECC_CAPT_ATTR_VLD); +} + +int do_ecc ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + volatile immap_t *immap = (immap_t *)CFG_IMMR; + volatile ddr83xx_t *ddr = &immap->ddr; + volatile u32 val; + u64 *addr, count, val64; + register u64 *i; + + if (argc > 4) { + printf ("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + if (argc == 2) { + if (strcmp(argv[1], "status") == 0) { + ecc_print_status(); + return 0; + } else if (strcmp(argv[1], "captureclear") == 0) { + ddr->capture_address = 0; + ddr->capture_data_hi = 0; + ddr->capture_data_lo = 0; + ddr->capture_ecc = 0; + ddr->capture_attributes = 0; + return 0; + } + } + + if (argc == 3) { + if (strcmp(argv[1], "sbecnt") == 0) { + val = simple_strtoul(argv[2], NULL, 10); + if (val > 255) { + printf("Incorrect Counter value, should be 0..255\n"); + return 1; + } + + val = (val << ECC_ERROR_MAN_SBEC_SHIFT); + val |= (ddr->err_sbe & ECC_ERROR_MAN_SBET); + + ddr->err_sbe = val; + return 0; + } else if (strcmp(argv[1], "sbethr") == 0) { + val = simple_strtoul(argv[2], NULL, 10); + if (val > 255) { + printf("Incorrect Counter value, should be 0..255\n"); + return 1; + } + + val = (val << ECC_ERROR_MAN_SBET_SHIFT); + val |= (ddr->err_sbe & ECC_ERROR_MAN_SBEC); + + ddr->err_sbe = val; + return 0; + } else if (strcmp(argv[1], "errdisable") == 0) { + val = ddr->err_disable; + + if (strcmp(argv[2], "+sbe") == 0) { + val |= ECC_ERROR_DISABLE_SBED; + } else if (strcmp(argv[2], "+mbe") == 0) { + val |= ECC_ERROR_DISABLE_MBED; + } else if (strcmp(argv[2], "+mse") == 0) { + val |= ECC_ERROR_DISABLE_MSED; + } else if (strcmp(argv[2], "+all") == 0) { + val |= (ECC_ERROR_DISABLE_SBED | + ECC_ERROR_DISABLE_MBED | + ECC_ERROR_DISABLE_MSED); + } else if (strcmp(argv[2], "-sbe") == 0) { + val &= ~ECC_ERROR_DISABLE_SBED; + } else if (strcmp(argv[2], "-mbe") == 0) { + val &= ~ECC_ERROR_DISABLE_MBED; + } else if (strcmp(argv[2], "-mse") == 0) { + val &= ~ECC_ERROR_DISABLE_MSED; + } else if (strcmp(argv[2], "-all") == 0) { + val &= ~(ECC_ERROR_DISABLE_SBED | + ECC_ERROR_DISABLE_MBED | + ECC_ERROR_DISABLE_MSED); + } else { + printf("Incorrect err_disable field\n"); + return 1; + } + + ddr->err_disable = val; + __asm__ __volatile__ ("sync"); + __asm__ __volatile__ ("isync"); + return 0; + } else if (strcmp(argv[1], "errdetectclr") == 0) { + val = ddr->err_detect; + + if (strcmp(argv[2], "mme") == 0) { + val |= ECC_ERROR_DETECT_MME; + } else if (strcmp(argv[2], "sbe") == 0) { + val |= ECC_ERROR_DETECT_SBE; + } else if (strcmp(argv[2], "mbe") == 0) { + val |= ECC_ERROR_DETECT_MBE; + } else if (strcmp(argv[2], "mse") == 0) { + val |= ECC_ERROR_DETECT_MSE; + } else if (strcmp(argv[2], "all") == 0) { + val |= (ECC_ERROR_DETECT_MME | + ECC_ERROR_DETECT_MBE | + ECC_ERROR_DETECT_SBE | + ECC_ERROR_DETECT_MSE); + } else { + printf("Incorrect err_detect field\n"); + return 1; + } + + ddr->err_detect = val; + return 0; + } else if (strcmp(argv[1], "injectdatahi") == 0) { + val = simple_strtoul(argv[2], NULL, 16); + + ddr->data_err_inject_hi = val; + return 0; + } else if (strcmp(argv[1], "injectdatalo") == 0) { + val = simple_strtoul(argv[2], NULL, 16); + + ddr->data_err_inject_lo = val; + return 0; + } else if (strcmp(argv[1], "injectecc") == 0) { + val = simple_strtoul(argv[2], NULL, 16); + if (val > 0xff) { + printf("Incorrect ECC inject mask, should be 0x00..0xff\n"); + return 1; + } + val |= (ddr->ecc_err_inject & ~ECC_ERR_INJECT_EEIM); + + ddr->ecc_err_inject = val; + return 0; + } else if (strcmp(argv[1], "inject") == 0) { + val = ddr->ecc_err_inject; + + if (strcmp(argv[2], "en") == 0) + val |= ECC_ERR_INJECT_EIEN; + else if (strcmp(argv[2], "dis") == 0) + val &= ~ECC_ERR_INJECT_EIEN; + else + printf("Incorrect command\n"); + + ddr->ecc_err_inject = val; + __asm__ __volatile__ ("sync"); + __asm__ __volatile__ ("isync"); + return 0; + } else if (strcmp(argv[1], "mirror") == 0) { + val = ddr->ecc_err_inject; + + if (strcmp(argv[2], "en") == 0) + val |= ECC_ERR_INJECT_EMB; + else if (strcmp(argv[2], "dis") == 0) + val &= ~ECC_ERR_INJECT_EMB; + else + printf("Incorrect command\n"); + + ddr->ecc_err_inject = val; + return 0; + } + } + + if (argc == 4) { + if (strcmp(argv[1], "test") == 0) { + addr = (u64 *)simple_strtoul(argv[2], NULL, 16); + count = simple_strtoul(argv[3], NULL, 16); + + if ((u32)addr % 8) { + printf("Address not alligned on double word boundary\n"); + return 1; + } + + disable_interrupts(); + icache_disable(); + + for (i = addr; i < addr + count; i++) { + /* enable injects */ + ddr->ecc_err_inject |= ECC_ERR_INJECT_EIEN; + __asm__ __volatile__ ("sync"); + __asm__ __volatile__ ("isync"); + + /* write memory location injecting errors */ + *i = 0x1122334455667788ULL; + __asm__ __volatile__ ("sync"); + + /* disable injects */ + ddr->ecc_err_inject &= ~ECC_ERR_INJECT_EIEN; + __asm__ __volatile__ ("sync"); + __asm__ __volatile__ ("isync"); + + /* read data, this generates ECC error */ + val64 = *i; + __asm__ __volatile__ ("sync"); + + /* disable errors for ECC */ + ddr->err_disable |= ~ECC_ERROR_ENABLE; + __asm__ __volatile__ ("sync"); + __asm__ __volatile__ ("isync"); + + /* re-initialize memory, write the location again + * NOT injecting errors this time */ + *i = 0xcafecafecafecafeULL; + __asm__ __volatile__ ("sync"); + + /* enable errors for ECC */ + ddr->err_disable &= ECC_ERROR_ENABLE; + __asm__ __volatile__ ("sync"); + __asm__ __volatile__ ("isync"); + } + + icache_enable(); + enable_interrupts(); + + return 0; + } + } + + printf ("Usage:\n%s\n", cmdtp->usage); + return 1; +} + +U_BOOT_CMD( + ecc, 4, 0, do_ecc, + "ecc - support for DDR ECC features\n", + "status - print out status info\n" + "ecc captureclear - clear capture regs data\n" + "ecc sbecnt - set Single-Bit Error counter\n" + "ecc sbethr - set Single-Bit Threshold\n" + "ecc errdisable - clear/set disable Memory Error Disable, flag:\n" + " [-|+]sbe - Single-Bit Error\n" + " [-|+]mbe - Multiple-Bit Error\n" + " [-|+]mse - Memory Select Error\n" + " [-|+]all - all errors\n" + "ecc errdetectclr - clear Memory Error Detect, flag:\n" + " mme - Multiple Memory Errors\n" + " sbe - Single-Bit Error\n" + " mbe - Multiple-Bit Error\n" + " mse - Memory Select Error\n" + " all - all errors\n" + "ecc injectdatahi - set Memory Data Path Error Injection Mask High\n" + "ecc injectdatalo - set Memory Data Path Error Injection Mask Low\n" + "ecc injectecc - set ECC Error Injection Mask\n" + "ecc inject - enable/disable error injection\n" + "ecc mirror - enable/disable mirror byte\n" + "ecc test - test mem region:\n" + " - enables injects\n" + " - writes pattern injecting errors\n" + " - disables injects\n" + " - reads pattern back, generates error\n" + " - re-inits memory" +); +#endif /* if defined(CONFIG_DDR_ECC) && defined(CONFIG_DDR_ECC_CMD) */ + +#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP) +void +ft_board_setup(void *blob, bd_t *bd) +{ + u32 *p; + int len; + +#ifdef CONFIG_PCI + ft_pci_setup(blob, bd); +#endif + ft_cpu_setup(blob, bd); + + 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 diff --git a/board/sbc8349/u-boot.lds b/board/sbc8349/u-boot.lds new file mode 100644 index 0000000..e32c075 --- /dev/null +++ b/board/sbc8349/u-boot.lds @@ -0,0 +1,125 @@ +/* + * Copyright (c) 2006 Wind River Systems, Inc. + * u-boot.lds for WindRiver SBC8349. + * + * Based on the MPC8349 u-boot.lds + * + * 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 + */ + +OUTPUT_ARCH(powerpc) +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + cpu/mpc83xx/start.o (.text) + *(.text) + *(.fixup) + *(.got1) + . = ALIGN(16); + *(.rodata) + *(.rodata1) + *(.rodata.str1.4) + *(.eh_frame) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x0FFF) & 0xFFFFF000; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2; + __fixup_entries = (. - _FIXUP_TABLE_) >> 2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + + . = .; + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(4096); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(4096); + __init_end = .; + + __bss_start = .; + .bss : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + } + _end = . ; + PROVIDE (end = .); +} +ENTRY(_start) -- cgit v1.1