diff options
Diffstat (limited to 'u-boot/board/davinci/common')
| -rw-r--r-- | u-boot/board/davinci/common/Makefile | 53 | ||||
| -rw-r--r-- | u-boot/board/davinci/common/davinci_pinmux.c | 105 | ||||
| -rw-r--r-- | u-boot/board/davinci/common/misc.c | 149 |
3 files changed, 307 insertions, 0 deletions
diff --git a/u-boot/board/davinci/common/Makefile b/u-boot/board/davinci/common/Makefile new file mode 100644 index 0000000..a1d3de2 --- /dev/null +++ b/u-boot/board/davinci/common/Makefile @@ -0,0 +1,53 @@ +# +# (C) Copyright 2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +ifneq ($(OBJTREE),$(SRCTREE)) +$(shell mkdir -p $(obj)board/$(VENDOR)/common) +endif + +LIB = $(obj)lib$(VENDOR).o + +COBJS := misc.o davinci_pinmux.o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(obj).depend $(OBJS) $(SOBJS) + $(call cmd_link_o_target, $(OBJS) $(SOBJS)) + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak $(obj).depend + +######################################################################### +# This is for $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/u-boot/board/davinci/common/davinci_pinmux.c b/u-boot/board/davinci/common/davinci_pinmux.c new file mode 100644 index 0000000..ce58f71 --- /dev/null +++ b/u-boot/board/davinci/common/davinci_pinmux.c @@ -0,0 +1,105 @@ +/* + * DaVinci pinmux functions. + * + * Copyright (C) 2009 Nick Thompson, GE Fanuc Ltd, <nick.thompson@gefanuc.com> + * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net> + * Copyright (C) 2008 Lyrtech <www.lyrtech.com> + * Copyright (C) 2004 Texas Instruments. + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <common.h> +#include <asm/arch/hardware.h> +#include <asm/io.h> +#include <asm/arch/davinci_misc.h> + +/* + * Change the setting of a pin multiplexer field. + * + * Takes an array of pinmux settings similar to: + * + * struct pinmux_config uart_pins[] = { + * { &davinci_syscfg_regs->pinmux[8], 2, 7 }, + * { &davinci_syscfg_regs->pinmux[9], 2, 0 } + * }; + * + * Stepping through the array, each pinmux[n] register has the given value + * set in the pin mux field specified. + * + * The number of pins in the array must be passed (ARRAY_SIZE can provide + * this value conveniently). + * + * Returns 0 if all field numbers and values are in the correct range, + * else returns -1. + */ +int davinci_configure_pin_mux(const struct pinmux_config *pins, + const int n_pins) +{ + int i; + + /* check for invalid pinmux values */ + for (i = 0; i < n_pins; i++) { + if (pins[i].field >= PIN_MUX_NUM_FIELDS || + (pins[i].value & ~PIN_MUX_FIELD_MASK) != 0) + return -1; + } + + /* configure the pinmuxes */ + for (i = 0; i < n_pins; i++) { + const int offset = pins[i].field * PIN_MUX_FIELD_SIZE; + const unsigned int value = pins[i].value << offset; + const unsigned int mask = PIN_MUX_FIELD_MASK << offset; + const dv_reg *mux = pins[i].mux; + + writel(value | (readl(mux) & (~mask)), mux); + } + + return 0; +} + +/* + * Configure multiple pinmux resources. + * + * Takes an pinmux_resource array of pinmux_config and pin counts: + * + * const struct pinmux_resource pinmuxes[] = { + * PINMUX_ITEM(uart_pins), + * PINMUX_ITEM(i2c_pins), + * }; + * + * The number of items in the array must be passed (ARRAY_SIZE can provide + * this value conveniently). + * + * Each item entry is configured in the defined order. If configuration + * of any item fails, -1 is returned and none of the following items are + * configured. On success, 0 is returned. + */ +int davinci_configure_pin_mux_items(const struct pinmux_resource *item, + const int n_items) +{ + int i; + + for (i = 0; i < n_items; i++) { + if (davinci_configure_pin_mux(item[i].pins, + item[i].n_pins) != 0) + return -1; + } + + return 0; +} diff --git a/u-boot/board/davinci/common/misc.c b/u-boot/board/davinci/common/misc.c new file mode 100644 index 0000000..2bfdf23 --- /dev/null +++ b/u-boot/board/davinci/common/misc.c @@ -0,0 +1,149 @@ +/* + * Miscelaneous DaVinci functions. + * + * Copyright (C) 2009 Nick Thompson, GE Fanuc Ltd, <nick.thompson@gefanuc.com> + * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net> + * Copyright (C) 2008 Lyrtech <www.lyrtech.com> + * Copyright (C) 2004 Texas Instruments. + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <common.h> +#include <i2c.h> +#include <net.h> +#include <asm/arch/hardware.h> +#include <asm/io.h> +#include <asm/arch/davinci_misc.h> + +DECLARE_GLOBAL_DATA_PTR; + +#ifndef CONFIG_PRELOADER +int dram_init(void) +{ + /* dram_init must store complete ramsize in gd->ram_size */ + gd->ram_size = get_ram_size( + (volatile void *)CONFIG_SYS_SDRAM_BASE, + CONFIG_MAX_RAM_BANK_SIZE); + return 0; +} + +void dram_init_banksize(void) +{ + gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; + gd->bd->bi_dram[0].size = gd->ram_size; +} +#endif + +#ifdef CONFIG_DRIVER_TI_EMAC + +/* Read ethernet MAC address from EEPROM for DVEVM compatible boards. + * Returns 1 if found, 0 otherwise. + */ +int dvevm_read_mac_address(uint8_t *buf) +{ +#ifdef CONFIG_SYS_I2C_EEPROM_ADDR + /* Read MAC address. */ + if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0x7F00, CONFIG_SYS_I2C_EEPROM_ADDR_LEN, + (uint8_t *) &buf[0], 6)) + goto i2cerr; + + /* Check that MAC address is valid. */ + if (!is_valid_ether_addr(buf)) + goto err; + + return 1; /* Found */ + +i2cerr: + printf("Read from EEPROM @ 0x%02x failed\n", CONFIG_SYS_I2C_EEPROM_ADDR); +err: +#endif /* CONFIG_SYS_I2C_EEPROM_ADDR */ + + return 0; +} + +/* + * Set the mii mode as MII or RMII + */ +#if defined(CONFIG_SOC_DA8XX) +void davinci_emac_mii_mode_sel(int mode_sel) +{ + int val; + + val = readl(&davinci_syscfg_regs->cfgchip3); + if (mode_sel == 0) + val &= ~(1 << 8); + else + val |= (1 << 8); + writel(val, &davinci_syscfg_regs->cfgchip3); +} +#endif +/* + * If there is no MAC address in the environment, then it will be initialized + * (silently) from the value in the EEPROM. + */ +void davinci_sync_env_enetaddr(uint8_t *rom_enetaddr) +{ + uint8_t env_enetaddr[6]; + + eth_getenv_enetaddr_by_index(0, env_enetaddr); + if (!memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) { + /* There is no MAC address in the environment, so we initialize + * it from the value in the EEPROM. */ + debug("### Setting environment from EEPROM MAC address = " + "\"%pM\"\n", + env_enetaddr); + eth_setenv_enetaddr("ethaddr", rom_enetaddr); + } +} + +#endif /* CONFIG_DRIVER_TI_EMAC */ + +#if defined(CONFIG_SOC_DA8XX) +#ifndef CONFIG_USE_IRQ +void irq_init(void) +{ + /* + * Mask all IRQs by clearing the global enable and setting + * the enable clear for all the 90 interrupts. + */ + + writel(0, &davinci_aintc_regs->ger); + + writel(0, &davinci_aintc_regs->hier); + + writel(0xffffffff, &davinci_aintc_regs->ecr1); + writel(0xffffffff, &davinci_aintc_regs->ecr2); + writel(0xffffffff, &davinci_aintc_regs->ecr3); +} +#endif + +/* + * Enable PSC for various peripherals. + */ +int da8xx_configure_lpsc_items(const struct lpsc_resource *item, + const int n_items) +{ + int i; + + for (i = 0; i < n_items; i++) + lpsc_on(item[i].lpsc_no); + + return 0; +} +#endif |