diff options
Diffstat (limited to 'board/xes/xpedite517x')
| -rw-r--r-- | board/xes/xpedite517x/Makefile | 52 | ||||
| -rw-r--r-- | board/xes/xpedite517x/ddr.c | 168 | ||||
| -rw-r--r-- | board/xes/xpedite517x/law.c | 52 | ||||
| -rw-r--r-- | board/xes/xpedite517x/xpedite517x.c | 91 |
4 files changed, 363 insertions, 0 deletions
diff --git a/board/xes/xpedite517x/Makefile b/board/xes/xpedite517x/Makefile new file mode 100644 index 0000000..fea6686 --- /dev/null +++ b/board/xes/xpedite517x/Makefile @@ -0,0 +1,52 @@ +# +# (C) Copyright 2001 +# 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-y += $(BOARD).o +COBJS-y += ddr.o +COBJS-y += law.o + +SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS-y)) +SOBJS := $(addprefix $(obj),$(SOBJS-y)) + +$(LIB): $(obj).depend $(OBJS) $(SOBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +clean: + rm -f $(OBJS) $(SOBJS) + +distclean: clean + rm -f $(LIB) core *.bak .depend + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude ($obj).depend + +######################################################################### diff --git a/board/xes/xpedite517x/ddr.c b/board/xes/xpedite517x/ddr.c new file mode 100644 index 0000000..1d57d09 --- /dev/null +++ b/board/xes/xpedite517x/ddr.c @@ -0,0 +1,168 @@ +/* + * Copyright 2009 Extreme Engineering Solutions, Inc. + * Copyright 2007-2008 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. + * + * 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 <common.h> +#include <i2c.h> +#include <asm/fsl_ddr_sdram.h> +#include <asm/fsl_ddr_dimm_params.h> + +static void get_spd(ddr2_spd_eeprom_t *spd, unsigned char i2c_address) +{ + i2c_read(i2c_address, SPD_EEPROM_OFFSET, 2, (uchar *)spd, + sizeof(ddr2_spd_eeprom_t)); +} + +unsigned int fsl_ddr_get_mem_data_rate(void) +{ + return get_bus_freq(0); +} + +void fsl_ddr_get_spd(ddr2_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) { + i2c_address = SPD_EEPROM_ADDRESS1; +#ifdef SPD_EEPROM_ADDRESS2 + } else if (ctrl_num == 1) { + i2c_address = SPD_EEPROM_ADDRESS2; +#endif + } else { + /* An inalid ctrl number was give, use default SPD */ + printf("ERROR: invalid DDR ctrl: %d\n", ctrl_num); + i2c_address = SPD_EEPROM_ADDRESS1; + } + + get_spd(&(ctrl_dimms_spd[i]), i2c_address); + } +} + +/* + * There are four board-specific SDRAM timing parameters which must be + * calculated based on the particular PCB artwork. These are: + * 1.) CPO (Read Capture Delay) + * - TIMING_CFG_2 register + * Source: Calculation based on board trace lengths and + * chip-specific internal delays. + * 2.) WR_DATA_DELAY (Write Command to Data Strobe Delay) + * - TIMING_CFG_2 register + * Source: Calculation based on board trace lengths. + * Unless clock and DQ lanes are very different + * lengths (>2"), this should be set to the nominal value + * of 1/2 clock delay. + * 3.) CLK_ADJUST (Clock and Addr/Cmd alignment control) + * - DDR_SDRAM_CLK_CNTL register + * Source: Signal Integrity Simulations + * 4.) 2T Timing on Addr/Ctl + * - TIMING_CFG_2 register + * Source: Signal Integrity Simulations + * Usually only needed with heavy load/very high speed (>DDR2-800) + * + * PCB routing on the XPedite5170 is nearly identical to the XPedite5370 + * so we use the XPedite5370 settings as a basis for the XPedite5170. + */ + +typedef struct board_memctl_options { + uint16_t datarate_mhz_low; + uint16_t datarate_mhz_high; + uint8_t clk_adjust; + uint8_t cpo_override; + uint8_t write_data_delay; +} board_memctl_options_t; + +static struct board_memctl_options bopts_ctrl[][2] = { + { + /* Controller 0 */ + { + /* DDR2 600/667 */ + .datarate_mhz_low = 500, + .datarate_mhz_high = 750, + .clk_adjust = 5, + .cpo_override = 8, + .write_data_delay = 2, + }, + { + /* DDR2 800 */ + .datarate_mhz_low = 750, + .datarate_mhz_high = 850, + .clk_adjust = 5, + .cpo_override = 9, + .write_data_delay = 2, + }, + }, + { + /* Controller 1 */ + { + /* DDR2 600/667 */ + .datarate_mhz_low = 500, + .datarate_mhz_high = 750, + .clk_adjust = 5, + .cpo_override = 7, + .write_data_delay = 2, + }, + { + /* DDR2 800 */ + .datarate_mhz_low = 750, + .datarate_mhz_high = 850, + .clk_adjust = 5, + .cpo_override = 8, + .write_data_delay = 2, + }, + }, +}; + +void fsl_ddr_board_options(memctl_options_t *popts, + dimm_params_t *pdimm, + unsigned int ctrl_num) +{ + struct board_memctl_options *bopts = bopts_ctrl[ctrl_num]; + sys_info_t sysinfo; + int i; + unsigned int datarate; + + get_sys_info(&sysinfo); + datarate = fsl_ddr_get_mem_data_rate() / 1000000; + + for (i = 0; i < ARRAY_SIZE(bopts_ctrl[ctrl_num]); i++) { + if ((bopts[i].datarate_mhz_low <= datarate) && + (bopts[i].datarate_mhz_high >= datarate)) { + debug("controller %d:\n", ctrl_num); + debug(" clk_adjust = %d\n", bopts[i].clk_adjust); + debug(" cpo = %d\n", bopts[i].cpo_override); + debug(" write_data_delay = %d\n", + bopts[i].write_data_delay); + popts->clk_adjust = bopts[i].clk_adjust; + popts->cpo_override = bopts[i].cpo_override; + popts->write_data_delay = bopts[i].write_data_delay; + } + } + + /* + * Factors to consider for half-strength driver enable: + * - number of DIMMs installed + */ + popts->half_strength_driver_enable = 0; +} diff --git a/board/xes/xpedite517x/law.c b/board/xes/xpedite517x/law.c new file mode 100644 index 0000000..0b7d9ef --- /dev/null +++ b/board/xes/xpedite517x/law.c @@ -0,0 +1,52 @@ +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * + * (C) Copyright 2000 + * 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 <common.h> +#include <asm/fsl_law.h> +#include <asm/mmu.h> + +/* + * Notes: + * CCSRBAR don't need a configured Local Access Window. + * If flash is 8M at default position (last 8M), no LAW needed. + */ + +struct law_entry law_table[] = { + SET_LAW(CONFIG_SYS_FLASH_BASE2, LAW_SIZE_256M, LAW_TRGT_IF_LBC), +#ifdef CONFIG_SYS_NAND_BASE + /* NAND LAW covers 2 NAND flashes */ + SET_LAW(CONFIG_SYS_NAND_BASE, LAW_SIZE_512K, LAW_TRGT_IF_LBC), +#endif +#ifdef CONFIG_SYS_PCIE1_MEM_PHYS + SET_LAW(CONFIG_SYS_PCIE1_MEM_PHYS, LAW_SIZE_1G, LAW_TRGT_IF_PCIE_1), + SET_LAW(CONFIG_SYS_PCIE1_IO_PHYS, LAW_SIZE_8M, LAW_TRGT_IF_PCIE_1), +#endif +#ifdef CONFIG_SYS_PCIE2_MEM_PHYS + SET_LAW(CONFIG_SYS_PCIE2_MEM_PHYS, LAW_SIZE_256M, LAW_TRGT_IF_PCIE_2), + SET_LAW(CONFIG_SYS_PCIE2_IO_PHYS, LAW_SIZE_8M, LAW_TRGT_IF_PCIE_2), +#endif +}; + +int num_law_entries = ARRAY_SIZE(law_table); diff --git a/board/xes/xpedite517x/xpedite517x.c b/board/xes/xpedite517x/xpedite517x.c new file mode 100644 index 0000000..0f7fa6c --- /dev/null +++ b/board/xes/xpedite517x/xpedite517x.c @@ -0,0 +1,91 @@ +/* + * Copyright 2009 Extreme Engineering Solutions, 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 <common.h> +#include <asm/processor.h> +#include <asm/mmu.h> +#include <asm/io.h> +#include <fdt_support.h> +#include <pca953x.h> +#include "../common/fsl_8xxx_misc.h" + +#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_PCI) +extern void ft_board_pci_setup(void *blob, bd_t *bd); +#endif + +/* + * Print out which flash was booted from and if booting from the 2nd flash, + * swap flash chip selects to maintain consistent flash numbering/addresses. + */ +static void flash_cs_fixup(void) +{ + int flash_sel; + + /* + * Print boot dev and swap flash flash chip selects if booted from 2nd + * flash. Swapping chip selects presents user with a common memory + * map regardless of which flash was booted from. + */ + flash_sel = !((pca953x_get_val(CONFIG_SYS_I2C_PCA953X_ADDR0) & + CONFIG_SYS_PCA953X_C0_FLASH_PASS_CS)); + printf("FLASH: Executed from FLASH%d\n", flash_sel ? 2 : 1); + + if (flash_sel) { + set_lbc_br(0, CONFIG_SYS_BR1_PRELIM); + set_lbc_or(0, CONFIG_SYS_OR1_PRELIM); + + set_lbc_br(1, CONFIG_SYS_BR0_PRELIM); + set_lbc_or(1, CONFIG_SYS_OR0_PRELIM); + } +} + +int board_early_init_r(void) +{ + /* Initialize PCA9557 devices */ + pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR0, 0xff, 0); + pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR1, 0xff, 0); + pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR2, 0xff, 0); + pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR3, 0xff, 0); + + flash_cs_fixup(); + + return 0; +} + +#if defined(CONFIG_OF_BOARD_SETUP) +void ft_board_setup(void *blob, bd_t *bd) +{ +#ifdef CONFIG_PCI + ft_board_pci_setup(blob, bd); +#endif + ft_cpu_setup(blob, bd); +} +#endif + +#ifdef CONFIG_MP +extern void cpu_mp_lmb_reserve(struct lmb *lmb); + +void board_lmb_reserve(struct lmb *lmb) +{ + cpu_mp_lmb_reserve(lmb); +} +#endif |