The code base adds P1 & P2 RDB platforms support.
The folder and file names can cater to future SOCs of P1/P2 family.
P1 & P2 processors are 85xx platforms, part of Freescale QorIQ series.
Tested following on P2020RDB:
1. eTSECs
2. DDR, NAND, NOR, I2C.
Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
# Board CPU #
#########################################################################
+Poonam Aggrwal <poonam.aggrwal@freescale.com>
+
+ P2020RDB P2020
+
Greg Allen <gallen@arlut.utexas.edu>
UTX8245 MPC8245
MPC8572DS_36BIT \
P2020DS \
P2020DS_36BIT \
+ P2020RDB \
PM854 \
PM856 \
sbc8540 \
fi
@$(MKCONFIG) -a P2020DS ppc mpc85xx p2020ds freescale
+P2020RDB_config: unconfig
+ @mkdir -p $(obj)include
+ @echo "#define CONFIG_P2020" >>$(obj)include/config.h ;
+ @$(MKCONFIG) -a P1_P2_RDB ppc mpc85xx p1_p2_rdb freescale
+
PM854_config: unconfig
@$(MKCONFIG) $(@:_config=) ppc mpc85xx pm854
--- /dev/null
+#
+# Copyright 2009 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 $(TOPDIR)/config.mk
+
+LIB = $(obj)lib$(BOARD).a
+
+COBJS-y += $(BOARD).o
+COBJS-y += law.o
+COBJS-y += tlb.o
+COBJS-y += ddr.o
+
+SRCS := $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS-y))
+SOBJS := $(addprefix $(obj),$(SOBJS))
+
+$(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
+
+#########################################################################
--- /dev/null
+#
+# Copyright 2009 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
+#
+
+#
+# p1_p2rdb board
+#
+
+ifndef TEXT_BASE
+TEXT_BASE = 0xeff80000
+endif
--- /dev/null
+/*
+ * Copyright 2009 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 <asm/mmu.h>
+#include <asm/immap_85xx.h>
+#include <asm/fsl_ddr_sdram.h>
+#include <asm/io.h>
+#include <asm/fsl_law.h>
+
+extern void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
+ unsigned int ctrl_num);
+
+#define DATARATE_400MHZ 400000000
+#define DATARATE_533MHZ 533333333
+#define DATARATE_667MHZ 666666666
+#define DATARATE_800MHZ 800000000
+
+#define CONFIG_SYS_DDR_CS0_BNDS 0x0000003F
+#define CONFIG_SYS_DDR_CS0_CONFIG 0x80014202
+#define CONFIG_SYS_DDR_CS0_CONFIG_2 0x00000000
+#define CONFIG_SYS_DDR_INIT_ADDR 0x00000000
+#define CONFIG_SYS_DDR_INIT_EXT_ADDR 0x00000000
+#define CONFIG_SYS_DDR_MODE_CONTROL 0x00000000
+#define CONFIG_SYS_DDR_ZQ_CONTROL 0x00000000
+#define CONFIG_SYS_DDR_WRLVL_CONTROL 0x00000000
+#define CONFIG_SYS_DDR_PD_CONTROL 0x00000000
+#define CONFIG_SYS_DDR_SR_CNTR 0x00000000
+#define CONFIG_SYS_DDR_RCW_1 0x00000000
+#define CONFIG_SYS_DDR_RCW_2 0x00000000
+#define CONFIG_SYS_DDR_CONTROL 0x43000000 /* Type = DDR2*/
+#define CONFIG_SYS_DDR_CONTROL_2 0x24401000
+#define CONFIG_SYS_DDR_TIMING_4 0x00000000
+#define CONFIG_SYS_DDR_TIMING_5 0x00000000
+
+#define CONFIG_SYS_DDR_TIMING_3_400 0x00010000
+#define CONFIG_SYS_DDR_TIMING_0_400 0x00260802
+#define CONFIG_SYS_DDR_TIMING_1_400 0x39355322
+#define CONFIG_SYS_DDR_TIMING_2_400 0x1f9048ca
+#define CONFIG_SYS_DDR_CLK_CTRL_400 0x02800000
+#define CONFIG_SYS_DDR_MODE_1_400 0x00480432
+#define CONFIG_SYS_DDR_MODE_2_400 0x00000000
+#define CONFIG_SYS_DDR_INTERVAL_400 0x06180100
+
+#define CONFIG_SYS_DDR_TIMING_3_533 0x00020000
+#define CONFIG_SYS_DDR_TIMING_0_533 0x00260802
+#define CONFIG_SYS_DDR_TIMING_1_533 0x4c47c432
+#define CONFIG_SYS_DDR_TIMING_2_533 0x0f9848ce
+#define CONFIG_SYS_DDR_CLK_CTRL_533 0x02800000
+#define CONFIG_SYS_DDR_MODE_1_533 0x00040642
+#define CONFIG_SYS_DDR_MODE_2_533 0x00000000
+#define CONFIG_SYS_DDR_INTERVAL_533 0x08200100
+
+#define CONFIG_SYS_DDR_TIMING_3_667 0x00030000
+#define CONFIG_SYS_DDR_TIMING_0_667 0x55770802
+#define CONFIG_SYS_DDR_TIMING_1_667 0x5f599543
+#define CONFIG_SYS_DDR_TIMING_2_667 0x0fa074d1
+#define CONFIG_SYS_DDR_CLK_CTRL_667 0x02800000
+#define CONFIG_SYS_DDR_MODE_1_667 0x00040852
+#define CONFIG_SYS_DDR_MODE_2_667 0x00000000
+#define CONFIG_SYS_DDR_INTERVAL_667 0x0a280100
+
+#define CONFIG_SYS_DDR_TIMING_3_800 0x00040000
+#define CONFIG_SYS_DDR_TIMING_0_800 0x55770802
+#define CONFIG_SYS_DDR_TIMING_1_800 0x6f6b6543
+#define CONFIG_SYS_DDR_TIMING_2_800 0x0fa074d1
+#define CONFIG_SYS_DDR_CLK_CTRL_800 0x02000000
+#define CONFIG_SYS_DDR_MODE_1_800 0x00440862
+#define CONFIG_SYS_DDR_MODE_2_800 0x00000000
+#define CONFIG_SYS_DDR_INTERVAL_800 0x0a280100
+
+fsl_ddr_cfg_regs_t ddr_cfg_regs_400 = {
+ .cs[0].bnds = CONFIG_SYS_DDR_CS0_BNDS,
+ .cs[0].config = CONFIG_SYS_DDR_CS0_CONFIG,
+ .cs[0].config_2 = CONFIG_SYS_DDR_CS0_CONFIG_2,
+ .timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3_400,
+ .timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0_400,
+ .timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1_400,
+ .timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2_400,
+ .ddr_sdram_cfg = CONFIG_SYS_DDR_CONTROL,
+ .ddr_sdram_cfg_2 = CONFIG_SYS_DDR_CONTROL_2,
+ .ddr_sdram_mode = CONFIG_SYS_DDR_MODE_1_400,
+ .ddr_sdram_mode_2 = CONFIG_SYS_DDR_MODE_2_400,
+ .ddr_sdram_md_cntl = CONFIG_SYS_DDR_MODE_CONTROL,
+ .ddr_sdram_interval = CONFIG_SYS_DDR_INTERVAL_400,
+ .ddr_data_init = CONFIG_MEM_INIT_VALUE,
+ .ddr_sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL_400,
+ .ddr_init_addr = CONFIG_SYS_DDR_INIT_ADDR,
+ .ddr_init_ext_addr = CONFIG_SYS_DDR_INIT_EXT_ADDR,
+ .timing_cfg_4 = CONFIG_SYS_DDR_TIMING_4,
+ .timing_cfg_5 = CONFIG_SYS_DDR_TIMING_5,
+ .ddr_zq_cntl = CONFIG_SYS_DDR_ZQ_CONTROL,
+ .ddr_wrlvl_cntl = CONFIG_SYS_DDR_WRLVL_CONTROL,
+ .ddr_pd_cntl = CONFIG_SYS_DDR_PD_CONTROL,
+ .ddr_sr_cntr = CONFIG_SYS_DDR_SR_CNTR,
+ .ddr_sdram_rcw_1 = CONFIG_SYS_DDR_RCW_1,
+ .ddr_sdram_rcw_2 = CONFIG_SYS_DDR_RCW_2
+};
+
+fsl_ddr_cfg_regs_t ddr_cfg_regs_533 = {
+ .cs[0].bnds = CONFIG_SYS_DDR_CS0_BNDS,
+ .cs[0].config = CONFIG_SYS_DDR_CS0_CONFIG,
+ .cs[0].config_2 = CONFIG_SYS_DDR_CS0_CONFIG_2,
+ .timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3_533,
+ .timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0_533,
+ .timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1_533,
+ .timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2_533,
+ .ddr_sdram_cfg = CONFIG_SYS_DDR_CONTROL,
+ .ddr_sdram_cfg_2 = CONFIG_SYS_DDR_CONTROL_2,
+ .ddr_sdram_mode = CONFIG_SYS_DDR_MODE_1_533,
+ .ddr_sdram_mode_2 = CONFIG_SYS_DDR_MODE_2_533,
+ .ddr_sdram_md_cntl = CONFIG_SYS_DDR_MODE_CONTROL,
+ .ddr_sdram_interval = CONFIG_SYS_DDR_INTERVAL_533,
+ .ddr_data_init = CONFIG_MEM_INIT_VALUE,
+ .ddr_sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL_533,
+ .ddr_init_addr = CONFIG_SYS_DDR_INIT_ADDR,
+ .ddr_init_ext_addr = CONFIG_SYS_DDR_INIT_EXT_ADDR,
+ .timing_cfg_4 = CONFIG_SYS_DDR_TIMING_4,
+ .timing_cfg_5 = CONFIG_SYS_DDR_TIMING_5,
+ .ddr_zq_cntl = CONFIG_SYS_DDR_ZQ_CONTROL,
+ .ddr_wrlvl_cntl = CONFIG_SYS_DDR_WRLVL_CONTROL,
+ .ddr_pd_cntl = CONFIG_SYS_DDR_PD_CONTROL,
+ .ddr_sr_cntr = CONFIG_SYS_DDR_SR_CNTR,
+ .ddr_sdram_rcw_1 = CONFIG_SYS_DDR_RCW_1,
+ .ddr_sdram_rcw_2 = CONFIG_SYS_DDR_RCW_2
+};
+
+fsl_ddr_cfg_regs_t ddr_cfg_regs_667 = {
+ .cs[0].bnds = CONFIG_SYS_DDR_CS0_BNDS,
+ .cs[0].config = CONFIG_SYS_DDR_CS0_CONFIG,
+ .cs[0].config_2 = CONFIG_SYS_DDR_CS0_CONFIG_2,
+ .timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3_667,
+ .timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0_667,
+ .timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1_667,
+ .timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2_667,
+ .ddr_sdram_cfg = CONFIG_SYS_DDR_CONTROL,
+ .ddr_sdram_cfg_2 = CONFIG_SYS_DDR_CONTROL_2,
+ .ddr_sdram_mode = CONFIG_SYS_DDR_MODE_1_667,
+ .ddr_sdram_mode_2 = CONFIG_SYS_DDR_MODE_2_667,
+ .ddr_sdram_md_cntl = CONFIG_SYS_DDR_MODE_CONTROL,
+ .ddr_sdram_interval = CONFIG_SYS_DDR_INTERVAL_667,
+ .ddr_data_init = CONFIG_MEM_INIT_VALUE,
+ .ddr_sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL_667,
+ .ddr_init_addr = CONFIG_SYS_DDR_INIT_ADDR,
+ .ddr_init_ext_addr = CONFIG_SYS_DDR_INIT_EXT_ADDR,
+ .timing_cfg_4 = CONFIG_SYS_DDR_TIMING_4,
+ .timing_cfg_5 = CONFIG_SYS_DDR_TIMING_5,
+ .ddr_zq_cntl = CONFIG_SYS_DDR_ZQ_CONTROL,
+ .ddr_wrlvl_cntl = CONFIG_SYS_DDR_WRLVL_CONTROL,
+ .ddr_pd_cntl = CONFIG_SYS_DDR_PD_CONTROL,
+ .ddr_sr_cntr = CONFIG_SYS_DDR_SR_CNTR,
+ .ddr_sdram_rcw_1 = CONFIG_SYS_DDR_RCW_1,
+ .ddr_sdram_rcw_2 = CONFIG_SYS_DDR_RCW_2
+};
+
+fsl_ddr_cfg_regs_t ddr_cfg_regs_800 = {
+ .cs[0].bnds = CONFIG_SYS_DDR_CS0_BNDS,
+ .cs[0].config = CONFIG_SYS_DDR_CS0_CONFIG,
+ .cs[0].config_2 = CONFIG_SYS_DDR_CS0_CONFIG_2,
+ .timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3_800,
+ .timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0_800,
+ .timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1_800,
+ .timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2_800,
+ .ddr_sdram_cfg = CONFIG_SYS_DDR_CONTROL,
+ .ddr_sdram_cfg_2 = CONFIG_SYS_DDR_CONTROL_2,
+ .ddr_sdram_mode = CONFIG_SYS_DDR_MODE_1_800,
+ .ddr_sdram_mode_2 = CONFIG_SYS_DDR_MODE_2_800,
+ .ddr_sdram_md_cntl = CONFIG_SYS_DDR_MODE_CONTROL,
+ .ddr_sdram_interval = CONFIG_SYS_DDR_INTERVAL_800,
+ .ddr_data_init = CONFIG_MEM_INIT_VALUE,
+ .ddr_sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL_800,
+ .ddr_init_addr = CONFIG_SYS_DDR_INIT_ADDR,
+ .ddr_init_ext_addr = CONFIG_SYS_DDR_INIT_EXT_ADDR,
+ .timing_cfg_4 = CONFIG_SYS_DDR_TIMING_4,
+ .timing_cfg_5 = CONFIG_SYS_DDR_TIMING_5,
+ .ddr_zq_cntl = CONFIG_SYS_DDR_ZQ_CONTROL,
+ .ddr_wrlvl_cntl = CONFIG_SYS_DDR_WRLVL_CONTROL,
+ .ddr_pd_cntl = CONFIG_SYS_DDR_PD_CONTROL,
+ .ddr_sr_cntr = CONFIG_SYS_DDR_SR_CNTR,
+ .ddr_sdram_rcw_1 = CONFIG_SYS_DDR_RCW_1,
+ .ddr_sdram_rcw_2 = CONFIG_SYS_DDR_RCW_2
+};
+
+/*
+ * Fixed sdram init -- doesn't use serial presence detect.
+ */
+
+phys_size_t fixed_sdram (void)
+{
+ sys_info_t sysinfo;
+ char buf[32];
+
+ get_sys_info(&sysinfo);
+ printf("Configuring DDR for %s MT/s data rate\n",
+ strmhz(buf, sysinfo.freqDDRBus));
+
+ if(sysinfo.freqDDRBus <= DATARATE_400MHZ)
+ fsl_ddr_set_memctl_regs(&ddr_cfg_regs_400, 0);
+ else if(sysinfo.freqDDRBus <= DATARATE_533MHZ)
+ fsl_ddr_set_memctl_regs(&ddr_cfg_regs_533, 0);
+ else if(sysinfo.freqDDRBus <= DATARATE_667MHZ)
+ fsl_ddr_set_memctl_regs(&ddr_cfg_regs_667, 0);
+ else if(sysinfo.freqDDRBus <= DATARATE_800MHZ)
+ fsl_ddr_set_memctl_regs(&ddr_cfg_regs_800, 0);
+ else
+ panic("Unsupported DDR data rate %s MT/s data rate\n",
+ strmhz(buf, sysinfo.freqDDRBus));
+
+ return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
+}
+
+phys_size_t initdram(int board_type)
+{
+ phys_size_t dram_size = 0;
+
+ dram_size = fixed_sdram();
+ set_ddr_laws(0, dram_size, LAW_TRGT_IF_DDR_1);
+
+ dram_size = setup_ddr_tlbs(dram_size / 0x100000);
+ dram_size *= 0x100000;
+
+ puts("DDR: ");
+ return dram_size;
+}
--- /dev/null
+/*
+ * Copyright 2009 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 <asm/fsl_law.h>
+#include <asm/mmu.h>
+
+struct law_entry law_table[] = {
+ SET_LAW(CONFIG_SYS_FLASH_BASE_PHYS, LAW_SIZE_16M, LAW_TRGT_IF_LBC),
+ SET_LAW(CONFIG_SYS_PCIE1_MEM_PHYS, LAWAR_SIZE_512M, LAW_TRGT_IF_PCIE_1),
+ SET_LAW(CONFIG_SYS_PCIE1_IO_PHYS, LAW_SIZE_64K, LAW_TRGT_IF_PCIE_1),
+ SET_LAW(CONFIG_SYS_PCIE2_MEM_PHYS, LAWAR_SIZE_512M, LAW_TRGT_IF_PCIE_2),
+ SET_LAW(CONFIG_SYS_PCIE2_IO_PHYS, LAW_SIZE_64K, LAW_TRGT_IF_PCIE_2),
+ SET_LAW(CONFIG_SYS_VSC7385_BASE_PHYS, LAW_SIZE_128K, LAW_TRGT_IF_LBC),
+ SET_LAW(CONFIG_SYS_NAND_BASE_PHYS, LAW_SIZE_1M, LAW_TRGT_IF_LBC),
+};
+
+int num_law_entries = ARRAY_SIZE(law_table);
--- /dev/null
+/*
+ * Copyright 2009 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 <command.h>
+#include <asm/processor.h>
+#include <asm/mmu.h>
+#include <asm/cache.h>
+#include <asm/immap_85xx.h>
+#include <asm/io.h>
+#include <miiphy.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <tsec.h>
+#include <vsc7385.h>
+#include <netdev.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define VSC7385_RST_SET 0x00080000
+#define SLIC_RST_SET 0x00040000
+#define SGMII_PHY_RST_SET 0x00020000
+#define PCIE_RST_SET 0x00010000
+#define RGMII_PHY_RST_SET 0x02000000
+
+#define USB_RST_CLR 0x04000000
+
+#define GPIO_DIR 0x060f0000
+
+#define BOARD_PERI_RST_SET VSC7385_RST_SET | SLIC_RST_SET | \
+ SGMII_PHY_RST_SET | PCIE_RST_SET | \
+ RGMII_PHY_RST_SET
+
+#define SYSCLK_MASK 0x00200000
+#define BOARDREV_MASK 0x10100000
+#define BOARDREV_B 0x10100000
+#define BOARDREV_C 0x00100000
+
+#define SYSCLK_66 66666666
+#define SYSCLK_50 50000000
+#define SYSCLK_100 100000000
+
+unsigned long get_board_sys_clk(ulong dummy)
+{
+ volatile ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
+ u32 val_gpdat, sysclk_gpio, board_rev_gpio;
+
+ val_gpdat = pgpio->gpdat;
+ sysclk_gpio = val_gpdat & SYSCLK_MASK;
+ board_rev_gpio = val_gpdat & BOARDREV_MASK;
+ if (board_rev_gpio == BOARDREV_C) {
+ if(sysclk_gpio == 0)
+ return SYSCLK_66;
+ else
+ return SYSCLK_100;
+ } else if (board_rev_gpio == BOARDREV_B) {
+ if(sysclk_gpio == 0)
+ return SYSCLK_66;
+ else
+ return SYSCLK_50;
+ }
+ return 0;
+}
+
+#ifdef CONFIG_MMC
+int board_early_init_f (void)
+{
+ volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+
+ setbits_be32(&gur->pmuxcr,
+ (MPC85xx_PMUXCR_SDHC_CD |
+ MPC85xx_PMUXCR_SDHC_WP));
+ return 0;
+}
+#endif
+
+int checkboard (void)
+{
+ u32 val_gpdat, board_rev_gpio;
+ volatile ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
+ char board_rev = 0;
+ struct cpu_type *cpu;
+
+ val_gpdat = pgpio->gpdat;
+ board_rev_gpio = val_gpdat & BOARDREV_MASK;
+ if (board_rev_gpio == BOARDREV_C)
+ board_rev = 'C';
+ else if (board_rev_gpio == BOARDREV_B)
+ board_rev = 'B';
+ else
+ panic ("Unexpected Board REV %x detected!!\n", board_rev_gpio);
+
+ cpu = gd->cpu;
+ printf ("Board: %sRDB Rev%c\n", cpu->name, board_rev);
+ setbits_be32(&pgpio->gpdir, GPIO_DIR);
+
+/*
+ * Bringing the following peripherals out of reset via GPIOs
+ * 0 = reset and 1 = out of reset
+ * GPIO12 - Reset to Ethernet Switch
+ * GPIO13 - Reset to SLIC/SLAC devices
+ * GPIO14 - Reset to SGMII_PHY_N
+ * GPIO15 - Reset to PCIe slots
+ * GPIO6 - Reset to RGMII PHY
+ * GPIO5 - Reset to USB3300 devices 1 = reset and 0 = out of reset
+ */
+ clrsetbits_be32(&pgpio->gpdat, USB_RST_CLR, BOARD_PERI_RST_SET);
+
+ return 0;
+}
+
+int board_early_init_r(void)
+{
+ const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
+ const u8 flash_esel = 2;
+
+ /*
+ * Remap Boot flash region to caching-inhibited
+ * so that flash can be erased properly.
+ */
+
+ /* Flush d-cache and invalidate i-cache of any FLASH data */
+ flush_dcache();
+ invalidate_icache();
+
+ /* invalidate existing TLB entry for flash */
+ disable_tlb(flash_esel);
+
+ set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS,
+ MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+ 0, flash_esel, BOOKE_PAGESZ_16M, 1);
+ return 0;
+}
+
+
+#ifdef CONFIG_TSEC_ENET
+int board_eth_init(bd_t *bis)
+{
+ struct tsec_info_struct tsec_info[4];
+ volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+ int num = 0;
+ char *tmp;
+ unsigned int vscfw_addr;
+
+#ifdef CONFIG_TSEC1
+ SET_STD_TSEC_INFO(tsec_info[num], 1);
+ num++;
+#endif
+#ifdef CONFIG_TSEC2
+ SET_STD_TSEC_INFO(tsec_info[num], 2);
+ num++;
+#endif
+#ifdef CONFIG_TSEC3
+ SET_STD_TSEC_INFO(tsec_info[num], 3);
+ if (!(gur->pordevsr & MPC85xx_PORDEVSR_SGMII3_DIS))
+ tsec_info[num].flags |= TSEC_SGMII;
+ num++;
+#endif
+ if (!num) {
+ printf("No TSECs initialized\n");
+ return 0;
+ }
+#ifdef CONFIG_VSC7385_ENET
+/* If a VSC7385 microcode image is present, then upload it. */
+ if ((tmp = getenv ("vscfw_addr")) != NULL) {
+ vscfw_addr = simple_strtoul (tmp, NULL, 16);
+ printf("uploading VSC7385 microcode from %x\n", vscfw_addr);
+ if (vsc7385_upload_firmware((void *) vscfw_addr,
+ CONFIG_VSC7385_IMAGE_SIZE))
+ puts("Failure uploading VSC7385 microcode.\n");
+ } else
+ puts("No address specified for VSC7385 microcode.\n");
+#endif
+
+ tsec_eth_init(bis, tsec_info, num);
+
+ return pci_eth_init(bis);
+}
+#endif
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+ phys_addr_t base;
+ phys_size_t size;
+
+ ft_cpu_setup(blob, bd);
+
+ base = getenv_bootm_low();
+ size = getenv_bootm_size();
+
+ fdt_fixup_memory(blob, (u64)base, (u64)size);
+}
+#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
--- /dev/null
+/*
+ * Copyright 2009 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 <asm/mmu.h>
+
+struct fsl_e_tlb_entry tlb_table[] = {
+ /* TLB 0 - for temp stack in cache */
+ SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR, CONFIG_SYS_INIT_RAM_ADDR,
+ MAS3_SX|MAS3_SW|MAS3_SR, 0,
+ 0, 0, BOOKE_PAGESZ_4K, 0),
+ SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024 ,
+ CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
+ MAS3_SX|MAS3_SW|MAS3_SR, 0,
+ 0, 0, BOOKE_PAGESZ_4K, 0),
+ SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024 ,
+ CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
+ MAS3_SX|MAS3_SW|MAS3_SR, 0,
+ 0, 0, BOOKE_PAGESZ_4K, 0),
+ SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024 ,
+ CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
+ MAS3_SX|MAS3_SW|MAS3_SR, 0,
+ 0, 0, BOOKE_PAGESZ_4K, 0),
+
+ /* TLB 1 */
+ /* *I*** - Covers boot page */
+ SET_TLB_ENTRY(1, 0xfffff000, 0xfffff000,
+ MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I,
+ 0, 0, BOOKE_PAGESZ_4K, 1),
+
+ /* *I*G* - CCSRBAR */
+ SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
+ MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+ 0, 1, BOOKE_PAGESZ_1M, 1),
+
+ /* W**G* - Flash/promjet, localbus */
+ /* This will be changed to *I*G* after relocation to RAM. */
+ SET_TLB_ENTRY(1, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE_PHYS,
+ MAS3_SX|MAS3_SR, MAS2_W|MAS2_G,
+ 0, 2, BOOKE_PAGESZ_16M, 1),
+
+ /* *I*G* - PCI */
+ SET_TLB_ENTRY(1, CONFIG_SYS_PCIE2_MEM_VIRT, CONFIG_SYS_PCIE2_MEM_PHYS,
+ MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+ 0, 3, BOOKE_PAGESZ_1G, 1),
+
+ /* *I*G* - PCI I/O */
+ SET_TLB_ENTRY(1, CONFIG_SYS_PCIE2_IO_VIRT, CONFIG_SYS_PCIE2_IO_PHYS,
+ MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+ 0, 4, BOOKE_PAGESZ_256K, 1),
+
+ /* *I*G - NAND */
+ SET_TLB_ENTRY(1, CONFIG_SYS_NAND_BASE, CONFIG_SYS_NAND_BASE_PHYS,
+ MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+ 0, 5, BOOKE_PAGESZ_1M, 1),
+
+ /* *I*G - VSC7385 Switch */
+ SET_TLB_ENTRY(1, CONFIG_SYS_VSC7385_BASE, CONFIG_SYS_VSC7385_BASE_PHYS,
+ MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+ 0, 6, BOOKE_PAGESZ_1M, 1),
+
+};
+
+int num_tlb_entries = ARRAY_SIZE(tlb_table);
--- /dev/null
+/*
+ * Copyright 2009 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
+ */
+
+OUTPUT_ARCH(powerpc)
+/* Do we need any of these for elf?
+ __DYNAMIC = 0; */
+PHDRS
+{
+ text PT_LOAD;
+ bss PT_LOAD;
+}
+
+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 :
+ {
+ *(.text)
+ *(.fixup)
+ *(.got1)
+ } :text
+ _etext = .;
+ PROVIDE (etext = .);
+ .rodata :
+ {
+ *(.eh_frame)
+ *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
+ } :text
+ .fini : { *(.fini) } =0
+ .ctors : { *(.ctors) }
+ .dtors : { *(.dtors) }
+
+ /* Read-write section, merged into data segment: */
+ . = (. + 0x00FF) & 0xFFFFFF00;
+ _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(256);
+ __init_begin = .;
+ .text.init : { *(.text.init) }
+ .data.init : { *(.data.init) }
+ . = ALIGN(256);
+ __init_end = .;
+
+ .bootpg ADDR(.text) + 0x7f000 :
+ {
+ cpu/mpc85xx/start.o (.bootpg)
+ } :text = 0xffff
+
+ .resetvec ADDR(.text) + 0x7fffc :
+ {
+ *(.resetvec)
+ } :text = 0xffff
+
+ . = ADDR(.text) + 0x80000;
+
+ __bss_start = .;
+ .bss (NOLOAD) :
+ {
+ *(.sbss) *(.scommon)
+ *(.dynbss)
+ *(.bss)
+ *(COMMON)
+ } :bss
+
+ . = ALIGN(4);
+ _end = . ;
+ PROVIDE (end = .);
+}
--- /dev/null
+Overview
+--------
+P2020RDB is a Low End Dual core platform supporting the P2020 processor
+of QorIQ series. P2020 is an e500 based dual core SOC.
+
+Building U-boot
+-----------
+To build the u-boot for P2020RDB:
+ make P2020RDB_config
+ make
+
+NOR Flash Banks
+-----------
+RDB board for P2020 has two flash banks. They are both present on boot.
+
+Booting by default is always from the boot bank at 0xef00_0000.
+
+Memory Map
+----------
+0xef00_0000 - 0xef7f_ffff Alernate bank 8MB
+0xe800_0000 - 0xefff_ffff Boot bank 8MB
+
+0xef78_0000 - 0xef7f_ffff Alternate u-boot address 512KB
+0xeff8_0000 - 0xefff_ffff Boot u-boot address 512KB
+
+Switch settings to boot from the NOR flash banks
+------------------------------------------------
+SW4[8]=0 default NOR Flash bank
+SW4[8]=1 Alternate NOR Flash bank
+
+Flashing Images
+---------------
+To place a new u-boot image in the alternate flash bank and then boot
+with that new image temporarily, use this:
+ tftp 1000000 u-boot.bin
+ erase ef780000 ef7fffff
+ cp.b 1000000 ef780000 80000
+
+Now to boot from the alternate bank change the SW4[8] from 0 to 1.
+
+To program the image in the boot flash bank:
+ tftp 1000000 u-boot.bin
+ protect off all
+ erase eff80000 ffffffff
+ cp.b 1000000 eff80000 80000
+
+Using the Device Tree Source File
+---------------------------------
+To create the DTB (Device Tree Binary) image file,
+use a command similar to this:
+
+ dtc -b 0 -f -I dts -O dtb p2020rdb.dts > p2020rdb.dtb
+
+Likely, that .dts file will come from here;
+
+ linux-2.6/arch/powerpc/boot/dts/p2020rdb.dts
+
+Booting Linux
+-------------
+Place a linux uImage in the TFTP disk area.
+
+ tftp 1000000 uImage.p2020rdb
+ tftp 2000000 rootfs.ext2.gz.uboot
+ tftp c00000 p2020rdb.dtb
+ bootm 1000000 2000000 c00000
+
+Implementing AMP(Asymmetric MultiProcessing)
+---------------------------------------------
+1. Build kernel image for core0:
+
+ a. $ make 85xx/p1_p2_rdb_defconfig
+
+ b. $ make menuconfig
+ - un-select "Processor support"->
+ "Symetric multi-processing support"
+
+ c. $ make uImage
+
+ d. $ cp arch/powerpc/boot/uImage /tftpboot/uImage.core0
+
+2. Build kernel image for core1:
+
+ a. $ make 85xx/p1_p2_rdb_defconfig
+
+ b. $ make menuconfig
+ - Un-select "Processor support"->
+ "Symetric multi-processing support"
+ - Select "Advanced setup" ->
+ "Prompt for advanced kernel configuration options"
+ - Select
+ "Set physical address where the kernel is loaded"
+ and set it to 0x20000000, asssuming core1 will
+ start from 512MB.
+ - Select "Set custom page offset address"
+ - Select "Set custom kernel base address"
+ - Select "Set maximum low memory"
+ - "Exit" and save the selection.
+
+ c. $ make uImage
+
+ d. $ cp arch/powerpc/boot/uImage /tftpboot/uImage.core1
+
+3. Create dtb for core0:
+
+ $ dtc -I dts -O dtb -f -b 0
+ arch/powerpc/boot/dts/p2020rdb_camp_core0.dts >
+ /tftpboot/p2020rdb_camp_core0.dtb
+
+4. Create dtb for core1:
+
+ $ dtc -I dts -O dtb -f -b 1
+ arch/powerpc/boot/dts/p2020rdb_camp_core1.dts >
+ /tftpboot/p2020rdb_camp_core1.dtb
+
+5. Bring up two cores separately:
+
+ a. Power on the board, under u-boot prompt:
+ => setenv <serverip>
+ => setenv <ipaddr>
+ => setenv bootargs root=/dev/ram rw console=ttyS0,115200
+ b. Bring up core1's kernel first:
+ => setenv bootm_low 0x20000000
+ => setenv bootm_size 0x10000000
+ => tftp 21000000 uImage.core1
+ => tftp 22000000 ramdiskfile
+ => tftp 20c00000 p2020rdb_camp_core1.dtb
+ => interrupts off
+ => bootm start 21000000 22000000 20c00000
+ => bootm loados
+ => bootm ramdisk
+ => bootm fdt
+ => fdt boardsetup
+ => fdt chosen $initrd_start $initrd_end
+ => bootm prep
+ => cpu 1 release $bootm_low - $fdtaddr -
+ c. Bring up core0's kernel(on the same u-boot console):
+ => setenv bootm_low 0
+ => setenv bootm_size 0x20000000
+ => tftp 1000000 uImage.core0
+ => tftp 2000000 ramdiskfile
+ => tftp c00000 p2020rdb_camp_core0.dtb
+ => bootm 1000000 2000000 c00000
+
+Please note only core0 will run u-boot, core1 starts kernel directly
+after "cpu release" command is issued.
u32 mem_sec_clk;
#endif /* CONFIG_MPC8360 */
#endif
-#if defined(CONFIG_MPC837x) || defined(CONFIG_MPC8536)
+#if defined(CONFIG_FSL_ESDHC)
u32 sdhc_clk;
#endif
#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
--- /dev/null
+/*
+ * Copyright 2009 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
+ */
+
+/*
+ * P1 P2 RDB board configuration file
+ * This file is intended to address a set of Low End and Ultra Low End
+ * Freescale SOCs of QorIQ series(RDB platforms).
+ * Currently only P2020RDB
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/* High Level Configuration Options */
+#define CONFIG_BOOKE 1 /* BOOKE */
+#define CONFIG_E500 1 /* BOOKE e500 family */
+#define CONFIG_MPC85xx 1 /* MPC8540/60/55/41/48/P1020/P2020,etc*/
+#define CONFIG_FSL_ELBC 1 /* Enable eLBC Support */
+#define CONFIG_FSL_LAW 1 /* Use common FSL init code */
+#define CONFIG_TSEC_ENET /* tsec ethernet support */
+#define CONFIG_ENV_OVERWRITE
+
+#ifndef __ASSEMBLY__
+extern unsigned long get_board_sys_clk(unsigned long dummy);
+#endif
+#define CONFIG_DDR_CLK_FREQ 66666666 /* DDRCLK on P1_P2 RDB */
+#define CONFIG_SYS_CLK_FREQ get_board_sys_clk(0) /*sysclk for P1_P2 RDB */
+
+#if defined(CONFIG_P2020) || defined(CONFIG_P1020)
+#define CONFIG_MP
+#endif
+
+/*
+ * These can be toggled for performance analysis, otherwise use default.
+ */
+#define CONFIG_L2_CACHE /* toggle L2 cache */
+#define CONFIG_BTB /* toggle branch predition */
+
+#define CONFIG_ADDR_STREAMING /* toggle addr streaming */
+
+#define CONFIG_ENABLE_36BIT_PHYS 1
+
+#define CONFIG_SYS_MEMTEST_START 0x00000000 /* memtest works on */
+#define CONFIG_SYS_MEMTEST_END 0x1fffffff
+#define CONFIG_PANIC_HANG /* do not reset board on panic */
+
+/*
+ * Base addresses -- Note these are effective addresses where the
+ * actual resources get mapped (not physical addresses)
+ */
+#define CONFIG_SYS_CCSRBAR_DEFAULT 0xff700000 /* CCSRBAR Default */
+#define CONFIG_SYS_CCSRBAR 0xffe00000 /* relocated CCSRBAR */
+#define CONFIG_SYS_CCSRBAR_PHYS CONFIG_SYS_CCSRBAR /* physical addr of */
+ /* CCSRBAR */
+#define CONFIG_SYS_IMMR CONFIG_SYS_CCSRBAR /* PQII uses */
+ /* CONFIG_SYS_IMMR */
+#define CONFIG_SYS_PCIE2_ADDR (CONFIG_SYS_CCSRBAR+0x9000)
+#define CONFIG_SYS_PCIE1_ADDR (CONFIG_SYS_CCSRBAR+0xa000)
+
+/* DDR Setup */
+#define CONFIG_FSL_DDR2
+#undef CONFIG_FSL_DDR_INTERACTIVE
+#undef CONFIG_SPD_EEPROM /* Use SPD EEPROM for DDR setup */
+#undef CONFIG_DDR_DLL
+
+#define CONFIG_MEM_INIT_VALUE 0xDeadBeef
+
+#define CONFIG_SYS_SDRAM_SIZE 1024 /* DDR size on P1_P2 RDBs */
+#define CONFIG_SYS_DDR_SDRAM_BASE 0x00000000
+#define CONFIG_SYS_SDRAM_BASE CONFIG_SYS_DDR_SDRAM_BASE
+
+#define CONFIG_NUM_DDR_CONTROLLERS 1
+#define CONFIG_DIMM_SLOTS_PER_CTLR 1
+#define CONFIG_CHIP_SELECTS_PER_CTRL 1
+
+#define CONFIG_SYS_DDR_ERR_INT_EN 0x0000000d
+#define CONFIG_SYS_DDR_ERR_DIS 0x00000000
+#define CONFIG_SYS_DDR_SBE 0x00FF0000
+
+#define CONFIG_SYS_DDR_TLB_START 9
+
+/*
+ * Memory map
+ *
+ * 0x0000_0000 0x3fff_ffff DDR 1G cacheablen
+ * 0xa000_0000 0xbfff_ffff PCI Express Mem 1G non-cacheable
+ * 0xffc2_0000 0xffc5_ffff PCI IO range 256K non-cacheable
+ *
+ * Localbus cacheable (TBD)
+ * 0xXXXX_XXXX 0xXXXX_XXXX SRAM YZ M Cacheable
+ *
+ * Localbus non-cacheable
+ * 0xef00_0000 0xefff_ffff FLASH 16M non-cacheable
+ * 0xffa0_0000 0xffaf_ffff NAND 1M non-cacheable
+ * 0xffb0_0000 0xffbf_ffff VSC7385 switch 1M non-cacheable
+ * 0xffd0_0000 0xffd0_3fff L1 for stack 16K Cacheable TLB0
+ * 0xffe0_0000 0xffef_ffff CCSR 1M non-cacheable
+ */
+
+/*
+ * Local Bus Definitions
+ */
+#define CONFIG_SYS_FLASH_BASE 0xef000000 /* start of FLASH 16M */
+
+#define CONFIG_SYS_FLASH_BASE_PHYS CONFIG_SYS_FLASH_BASE
+
+#define CONFIG_FLASH_BR_PRELIM (BR_PHYS_ADDR(CONFIG_SYS_FLASH_BASE_PHYS) | \
+ BR_PS_16 | BR_V)
+#define CONFIG_FLASH_OR_PRELIM 0xff000ff7
+
+#define CONFIG_SYS_FLASH_BANKS_LIST {CONFIG_SYS_FLASH_BASE}
+#define CONFIG_SYS_FLASH_QUIET_TEST
+#define CONFIG_FLASH_SHOW_PROGRESS 45 /* count down from 45/5: 9..1 */
+
+#define CONFIG_SYS_MAX_FLASH_BANKS 1 /* number of banks */
+#define CONFIG_SYS_MAX_FLASH_SECT 128 /* sectors per device */
+#undef CONFIG_SYS_FLASH_CHECKSUM
+#define CONFIG_SYS_FLASH_ERASE_TOUT 60000 /* Flash Erase Timeout (ms) */
+#define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* Flash Write Timeout (ms) */
+
+#define CONFIG_SYS_MONITOR_BASE TEXT_BASE /* start of monitor */
+
+#define CONFIG_FLASH_CFI_DRIVER
+#define CONFIG_SYS_FLASH_CFI
+#define CONFIG_SYS_FLASH_EMPTY_INFO
+#define CONFIG_SYS_FLASH_AMD_CHECK_DQ7
+
+#define CONFIG_BOARD_EARLY_INIT_R /* call board_early_init_r function */
+
+#define CONFIG_SYS_INIT_RAM_LOCK 1
+#define CONFIG_SYS_INIT_RAM_ADDR 0xffd00000 /* stack in RAM */
+#define CONFIG_SYS_INIT_RAM_END 0x00004000 /* End of used area in RAM */
+
+#define CONFIG_SYS_GBL_DATA_SIZE 128 /* num bytes initial data */
+#define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_END \
+ - CONFIG_SYS_GBL_DATA_SIZE)
+#define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
+
+#define CONFIG_SYS_MONITOR_LEN (256 * 1024) /* Reserve 256 kB for Mon*/
+#define CONFIG_SYS_MALLOC_LEN (1024 * 1024) /* Reserved for malloc*/
+
+#define CONFIG_SYS_NAND_BASE 0xffa00000
+#define CONFIG_SYS_NAND_BASE_PHYS CONFIG_SYS_NAND_BASE
+#define CONFIG_SYS_NAND_BASE_LIST {CONFIG_SYS_NAND_BASE}
+#define CONFIG_SYS_MAX_NAND_DEVICE 1
+#define NAND_MAX_CHIPS 1
+#define CONFIG_MTD_NAND_VERIFY_WRITE
+#define CONFIG_CMD_NAND 1
+#define CONFIG_NAND_FSL_ELBC 1
+#define CONFIG_SYS_NAND_BLOCK_SIZE (16 * 1024)
+
+/* NAND flash config */
+#define CONFIG_NAND_BR_PRELIM (CONFIG_SYS_NAND_BASE_PHYS \
+ | (2<<BR_DECC_SHIFT) /* Use HW ECC */ \
+ | BR_PS_8 /* Port Size = 8 bit */ \
+ | BR_MS_FCM /* MSEL = FCM */ \
+ | BR_V) /* valid */
+
+#define CONFIG_NAND_OR_PRELIM (0xFFF80000 /* length 32K */ \
+ | OR_FCM_CSCT \
+ | OR_FCM_CST \
+ | OR_FCM_CHT \
+ | OR_FCM_SCY_1 \
+ | OR_FCM_TRLX \
+ | OR_FCM_EHTR)
+
+#define CONFIG_SYS_BR0_PRELIM CONFIG_FLASH_BR_PRELIM /* NOR Base Address */
+#define CONFIG_SYS_OR0_PRELIM CONFIG_FLASH_OR_PRELIM /* NOR Options */
+#define CONFIG_SYS_BR1_PRELIM CONFIG_NAND_BR_PRELIM /* NAND Base Address */
+#define CONFIG_SYS_OR1_PRELIM CONFIG_NAND_OR_PRELIM /* NAND Options */
+
+#define CONFIG_SYS_VSC7385_BASE 0xffb00000
+
+#define CONFIG_SYS_VSC7385_BASE_PHYS CONFIG_SYS_VSC7385_BASE
+
+#define CONFIG_SYS_BR2_PRELIM (CONFIG_SYS_VSC7385_BASE | BR_PS_8 | BR_V)
+#define CONFIG_SYS_OR2_PRELIM (OR_AM_128KB | OR_GPCM_CSNT | OR_GPCM_XACS | \
+ OR_GPCM_SCY_15 | OR_GPCM_SETA | OR_GPCM_TRLX | \
+ OR_GPCM_EHTR | OR_GPCM_EAD)
+
+/* Serial Port - controlled on board with jumper J8
+ * open - index 2
+ * shorted - index 1
+ */
+#define CONFIG_CONS_INDEX 1
+//#define CONFIG_CONS_INDEX 2
+#undef CONFIG_SERIAL_SOFTWARE_FIFO
+#define CONFIG_SYS_NS16550
+#define CONFIG_SYS_NS16550_SERIAL
+#define CONFIG_SYS_NS16550_REG_SIZE 1
+#define CONFIG_SYS_NS16550_CLK get_bus_freq(0)
+
+#define CONFIG_SERIAL_MULTI 1 /* Enable both serial ports */
+#define CONFIG_SYS_CONSOLE_IS_IN_ENV /* determine from environment */
+
+#define CONFIG_SYS_BAUDRATE_TABLE \
+ {300, 600, 1200, 2400, 4800, 9600, 19200, 38400,115200}
+
+#define CONFIG_SYS_NS16550_COM1 (CONFIG_SYS_CCSRBAR+0x4500)
+#define CONFIG_SYS_NS16550_COM2 (CONFIG_SYS_CCSRBAR+0x4600)
+
+/* Use the HUSH parser */
+#define CONFIG_SYS_HUSH_PARSER
+#ifdef CONFIG_SYS_HUSH_PARSER
+#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
+#endif
+
+/*
+ * Pass open firmware flat tree
+ */
+#define CONFIG_OF_LIBFDT 1
+#define CONFIG_OF_BOARD_SETUP 1
+#define CONFIG_OF_STDOUT_VIA_ALIAS 1
+
+#define CONFIG_SYS_64BIT_VSPRINTF 1
+#define CONFIG_SYS_64BIT_STRTOUL 1
+
+/* new uImage format support */
+#define CONFIG_FIT 1
+#define CONFIG_FIT_VERBOSE 1 /* enable fit_format_{error,warning}() */
+
+/* I2C */
+#define CONFIG_FSL_I2C /* Use FSL common I2C driver */
+#define CONFIG_HARD_I2C /* I2C with hardware support */
+#undef CONFIG_SOFT_I2C /* I2C bit-banged */
+#define CONFIG_I2C_MULTI_BUS
+#define CONFIG_I2C_CMD_TREE
+#define CONFIG_SYS_I2C_SPEED 400000 /* I2C speed and slave address*/
+#define CONFIG_SYS_I2C_EEPROM_ADDR 0x57
+#define CONFIG_SYS_I2C_SLAVE 0x7F
+#define CONFIG_SYS_I2C_NOPROBES {{0,0x29}} /* Don't probe these addrs */
+#define CONFIG_SYS_I2C_OFFSET 0x3000
+#define CONFIG_SYS_I2C2_OFFSET 0x3100
+
+/*
+ * I2C2 EEPROM
+ */
+#define CONFIG_ID_EEPROM
+#ifdef CONFIG_ID_EEPROM
+#define CONFIG_SYS_I2C_EEPROM_NXID
+#endif
+#define CONFIG_SYS_I2C_EEPROM_ADDR 0x57
+#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1
+#define CONFIG_SYS_EEPROM_BUS_NUM 1
+
+#define CONFIG_RTC_DS1337
+#define CONFIG_SYS_I2C_RTC_ADDR 0x68
+/*
+ * General PCI
+ * Memory space is mapped 1-1, but I/O space must start from 0.
+ */
+
+/* controller 2, Slot 2, tgtid 2, Base address 9000 */
+#define CONFIG_SYS_PCIE2_MEM_VIRT 0xa0000000
+#define CONFIG_SYS_PCIE2_MEM_BUS 0xa0000000
+#define CONFIG_SYS_PCIE2_MEM_PHYS 0xa0000000
+#define CONFIG_SYS_PCIE2_MEM_SIZE 0x20000000 /* 512M */
+#define CONFIG_SYS_PCIE2_IO_VIRT 0xffc20000
+#define CONFIG_SYS_PCIE2_IO_BUS 0x00000000
+#define CONFIG_SYS_PCIE2_IO_PHYS 0xffc20000
+#define CONFIG_SYS_PCIE2_IO_SIZE 0x00010000 /* 64k */
+
+/* controller 1, Slot 1, tgtid 1, Base address a000 */
+#define CONFIG_SYS_PCIE1_MEM_VIRT 0xc0000000
+#define CONFIG_SYS_PCIE1_MEM_BUS 0xc0000000
+#define CONFIG_SYS_PCIE1_MEM_PHYS 0xc0000000
+#define CONFIG_SYS_PCIE1_MEM_SIZE 0x20000000 /* 512M */
+#define CONFIG_SYS_PCIE1_IO_VIRT 0xffc30000
+#define CONFIG_SYS_PCIE1_IO_BUS 0x00000000
+#define CONFIG_SYS_PCIE1_IO_PHYS 0xffc30000
+#define CONFIG_SYS_PCIE1_IO_SIZE 0x00010000 /* 64k */
+
+#if defined(CONFIG_PCI)
+#define CONFIG_NET_MULTI
+#define CONFIG_PCI_PNP /* do pci plug-and-play */
+
+#undef CONFIG_EEPRO100
+#undef CONFIG_TULIP
+#undef CONFIG_RTL8139
+
+#ifdef CONFIG_RTL8139
+/* This macro is used by RTL8139 but not defined in PPC architecture */
+#define KSEG1ADDR(x) (x)
+#define _IO_BASE 0x00000000
+#endif
+
+
+#define CONFIG_PCI_SCAN_SHOW /* show pci devices on startup */
+#define CONFIG_DOS_PARTITION
+
+#endif /* CONFIG_PCI */
+
+#if defined(CONFIG_TSEC_ENET)
+#ifndef CONFIG_NET_MULTI
+#define CONFIG_NET_MULTI 1
+#endif
+
+#define CONFIG_MII 1 /* MII PHY management */
+#define CONFIG_MII_DEFAULT_TSEC 1 /* Allow unregistered phys */
+#define CONFIG_TSEC1 1
+#define CONFIG_TSEC1_NAME "eTSEC1"
+#define CONFIG_TSEC2 1
+#define CONFIG_TSEC2_NAME "eTSEC2"
+#define CONFIG_TSEC3 1
+#define CONFIG_TSEC3_NAME "eTSEC3"
+
+#define TSEC1_PHY_ADDR 2
+#define TSEC2_PHY_ADDR 0
+#define TSEC3_PHY_ADDR 1
+
+#define CONFIG_VSC7385_ENET
+
+#define TSEC1_FLAGS (TSEC_GIGABIT | TSEC_REDUCED)
+#define TSEC2_FLAGS (TSEC_GIGABIT | TSEC_REDUCED)
+#define TSEC3_FLAGS (TSEC_GIGABIT | TSEC_REDUCED)
+
+#define TSEC1_PHYIDX 0
+#define TSEC2_PHYIDX 0
+#define TSEC3_PHYIDX 0
+
+/* Vitesse 7385 */
+
+#ifdef CONFIG_VSC7385_ENET
+/* The size of the VSC7385 firmware image */
+#define CONFIG_VSC7385_IMAGE_SIZE 8192
+#endif
+
+#define CONFIG_ETHPRIME "eTSEC1"
+
+#define CONFIG_PHY_GIGE 1 /* Include GbE speed/duplex detection */
+#endif /* CONFIG_TSEC_ENET */
+
+/*
+ * Environment
+ */
+#define CONFIG_ENV_IS_IN_FLASH 1
+#if CONFIG_SYS_MONITOR_BASE > 0xfff80000
+#define CONFIG_ENV_ADDR 0xfff80000
+#else
+#define CONFIG_ENV_ADDR (CONFIG_SYS_MONITOR_BASE - CONFIG_ENV_SECT_SIZE)
+#endif
+#define CONFIG_ENV_SIZE 0x2000
+#define CONFIG_ENV_SECT_SIZE 0x20000 /* 128K (one sector) */
+
+#define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
+#define CONFIG_SYS_LOADS_BAUD_CHANGE 1 /* allow baudrate change */
+
+/*
+ * Command line configuration.
+ */
+#include <config_cmd_default.h>
+
+#define CONFIG_CMD_DATE
+#define CONFIG_CMD_ELF
+#define CONFIG_CMD_I2C
+#define CONFIG_CMD_IRQ
+#define CONFIG_CMD_MII
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_SETEXPR
+
+#if defined(CONFIG_PCI)
+#define CONFIG_CMD_BEDBUG
+#define CONFIG_CMD_NET
+#define CONFIG_CMD_PCI
+#endif
+
+#undef CONFIG_WATCHDOG /* watchdog disabled */
+
+#define CONFIG_MMC 1
+
+#ifdef CONFIG_MMC
+#define CONFIG_BOARD_EARLY_INIT_F 1 /* Call board_pre_init */
+#define CONFIG_CMD_MMC
+#define CONFIG_DOS_PARTITION
+#define CONFIG_FSL_ESDHC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_SYS_FSL_ESDHC_ADDR CONFIG_SYS_MPC85xx_ESDHC_ADDR
+#ifdef CONFIG_P2020
+#define CONFIG_SYS_FSL_ESDHC_USE_PIO /* P2020 eSDHC DMA is not functional*/
+#endif
+#endif
+
+#define CONFIG_USB_EHCI
+
+#ifdef CONFIG_USB_EHCI
+#define CONFIG_CMD_USB
+#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
+#define CONFIG_USB_EHCI_FSL
+#define CONFIG_USB_STORAGE
+#endif
+
+#if defined(CONFIG_MMC) || defined(CONFIG_USB_EHCI)
+#define CONFIG_CMD_EXT2
+#define CONFIG_CMD_FAT
+#define CONFIG_DOS_PARTITION
+#endif
+
+/*
+ * Miscellaneous configurable options
+ */
+#define CONFIG_SYS_LONGHELP /* undef to save memory */
+#define CONFIG_CMDLINE_EDITING /* Command-line editing */
+#define CONFIG_SYS_LOAD_ADDR 0x2000000 /* default load address */
+#define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */
+#if defined(CONFIG_CMD_KGDB)
+#define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
+#else
+#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
+#endif
+#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16)
+ /* Print Buffer Size */
+#define CONFIG_SYS_MAXARGS 16 /* max number of command args */
+#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE/* Boot Argument Buffer Size */
+#define CONFIG_SYS_HZ 1000 /* decrementer freq: 1ms ticks */
+
+/*
+ * For booting Linux, the board info and command line data
+ * have to be in the first 16 MB of memory, since this is
+ * the maximum mapped by the Linux kernel during initialization.
+ */
+#define CONFIG_SYS_BOOTMAPSZ (16 << 20)/* Initial Memory map for Linux*/
+
+/*
+ * Internal Definitions
+ *
+ * Boot Flags
+ */
+#define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
+#define BOOTFLAG_WARM 0x02 /* Software reboot */
+
+#if defined(CONFIG_CMD_KGDB)
+#define CONFIG_KGDB_BAUDRATE 230400 /* speed to run kgdb serial port */
+#define CONFIG_KGDB_SER_INDEX 2 /* which serial port to use */
+#endif
+
+/*
+ * Environment Configuration
+ */
+
+#if defined(CONFIG_TSEC_ENET)
+#define CONFIG_HAS_ETH0
+#define CONFIG_HAS_ETH1
+#define CONFIG_HAS_ETH2
+#endif
+
+#define CONFIG_HOSTNAME P2020RDB
+#define CONFIG_ROOTPATH /opt/nfsroot
+#define CONFIG_BOOTFILE uImage
+#define CONFIG_UBOOTPATH u-boot.bin/* U-Boot image on TFTP server */
+
+/* default location for tftp and bootm */
+#define CONFIG_LOADADDR 1000000
+
+#define CONFIG_BOOTDELAY 10 /* -1 disables auto-boot */
+#undef CONFIG_BOOTARGS /* the boot command will set bootargs */
+
+#define CONFIG_BAUDRATE 115200
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+ "netdev=eth0\0" \
+ "uboot=" MK_STR(CONFIG_UBOOTPATH) "\0" \
+ "loadaddr=1000000\0" \
+ "bootfile=uImage\0" \
+ "tftpflash=tftpboot $loadaddr $uboot; " \
+ "protect off " MK_STR(TEXT_BASE) " +$filesize; " \
+ "erase " MK_STR(TEXT_BASE) " +$filesize; " \
+ "cp.b $loadaddr " MK_STR(TEXT_BASE) " $filesize; " \
+ "protect on " MK_STR(TEXT_BASE) " +$filesize; " \
+ "cmp.b $loadaddr " MK_STR(TEXT_BASE) " $filesize\0" \
+ "consoledev=ttyS0\0" \
+ "ramdiskaddr=2000000\0" \
+ "ramdiskfile=rootfs.ext2.gz.uboot\0" \
+ "fdtaddr=c00000\0" \
+ "fdtfile=p2020rdb.dtb\0" \
+ "bdev=sda1\0" \
+ "jffs2nor=mtdblock3\0" \
+ "norbootaddr=ef080000\0" \
+ "norfdtaddr=ef040000\0" \
+ "jffs2nand=mtdblock9\0" \
+ "nandbootaddr=100000\0" \
+ "nandfdtaddr=80000\0" \
+ "nandimgsize=400000\0" \
+ "nandfdtsize=80000\0" \
+ "usb_phy_type=ulpi\0" \
+ "vscfw_addr=ef000000\0" \
+ "othbootargs=ramdisk_size=600000\0" \
+ "usbfatboot=setenv bootargs root=/dev/ram rw " \
+ "console=$consoledev,$baudrate $othbootargs; " \
+ "usb start;" \
+ "fatload usb 0:2 $loadaddr $bootfile;" \
+ "fatload usb 0:2 $fdtaddr $fdtfile;" \
+ "fatload usb 0:2 $ramdiskaddr $ramdiskfile;" \
+ "bootm $loadaddr $ramdiskaddr $fdtaddr\0" \
+ "usbext2boot=setenv bootargs root=/dev/ram rw " \
+ "console=$consoledev,$baudrate $othbootargs; " \
+ "usb start;" \
+ "ext2load usb 0:4 $loadaddr $bootfile;" \
+ "ext2load usb 0:4 $fdtaddr $fdtfile;" \
+ "ext2load usb 0:4 $ramdiskaddr $ramdiskfile;" \
+ "bootm $loadaddr $ramdiskaddr $fdtaddr\0" \
+ "norboot=setenv bootargs root=/dev/$jffs2nor rw " \
+ "console=$consoledev,$baudrate rootfstype=jffs2 $othbootargs;" \
+ "bootm $norbootaddr - $norfdtaddr\0" \
+ "nandboot=setenv bootargs root=/dev/$jffs2nand rw rootfstype=jffs2 " \
+ "console=$consoledev,$baudrate $othbootargs;" \
+ "nand read 2000000 $nandbootaddr $nandimgsize;" \
+ "nand read 3000000 $nandfdtaddr $nandfdtsize;" \
+ "bootm 2000000 - 3000000;\0"
+
+#define CONFIG_NFSBOOTCOMMAND \
+ "setenv bootargs root=/dev/nfs rw " \
+ "nfsroot=$serverip:$rootpath " \
+ "ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off " \
+ "console=$consoledev,$baudrate $othbootargs;" \
+ "tftp $loadaddr $bootfile;" \
+ "tftp $fdtaddr $fdtfile;" \
+ "bootm $loadaddr - $fdtaddr"
+
+#define CONFIG_HDBOOT \
+ "setenv bootargs root=/dev/$bdev rw rootdelay=30 " \
+ "console=$consoledev,$baudrate $othbootargs;" \
+ "usb start;" \
+ "ext2load usb 0:1 $loadaddr /boot/$bootfile;" \
+ "ext2load usb 0:1 $fdtaddr /boot/$fdtfile;" \
+ "bootm $loadaddr - $fdtaddr"
+
+#define CONFIG_RAMBOOTCOMMAND \
+ "setenv bootargs root=/dev/ram rw " \
+ "console=$consoledev,$baudrate $othbootargs; " \
+ "tftp $ramdiskaddr $ramdiskfile;" \
+ "tftp $loadaddr $bootfile;" \
+ "tftp $fdtaddr $fdtfile;" \
+ "bootm $loadaddr $ramdiskaddr $fdtaddr"
+
+#define CONFIG_BOOTCOMMAND CONFIG_HDBOOT
+
+#endif /* __CONFIG_H */
projects / u-boot.git / commitdiff