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authorHeiko Schocher <hs@denx.de>2011-11-29 02:33:47 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2011-12-06 23:59:37 +0100
commitf7264c36cde2d9423798fd7a93cd20698f426b44 (patch)
tree94db49b7c438cabfa11bb5ea0b9ce5bbf4e92eec /board/enbw
parent5b51e7f3ca36f1ba445f9079835bf66304e16562 (diff)
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arm, davinci: add support for am1808 based enbw_cmc board
- booting from NOR Flash with direct boot method - POST support - LOGBUF support Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Paulraj Sandeep <s-paulraj@ti.com> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net> Cc: Igor Grinberg <grinberg@compulab.co.il> Cc: Christian Riesch <christian.riesch@omicron.at>
Diffstat (limited to 'board/enbw')
-rw-r--r--board/enbw/enbw_cmc/Makefile45
-rw-r--r--board/enbw/enbw_cmc/enbw_cmc.c607
2 files changed, 652 insertions, 0 deletions
diff --git a/board/enbw/enbw_cmc/Makefile b/board/enbw/enbw_cmc/Makefile
new file mode 100644
index 0000000..cd1f0d4
--- /dev/null
+++ b/board/enbw/enbw_cmc/Makefile
@@ -0,0 +1,45 @@
+#
+# (C) Copyright 2000, 2001, 2002
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
+#
+# 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).o
+
+COBJS := $(BOARD).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))
+
+#########################################################################
+# This is for $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/enbw/enbw_cmc/enbw_cmc.c b/board/enbw/enbw_cmc/enbw_cmc.c
new file mode 100644
index 0000000..5cd5357
--- /dev/null
+++ b/board/enbw/enbw_cmc/enbw_cmc.c
@@ -0,0 +1,607 @@
+/*
+ * (C) Copyright 2011
+ * Heiko Schocher, DENX Software Engineering, hs@denx.de.
+ *
+ * Based on:
+ * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * Based on da830evm.c. Original Copyrights follow:
+ *
+ * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
+ * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
+ *
+ * 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 <command.h>
+#include <environment.h>
+#include <hwconfig.h>
+#include <i2c.h>
+#include <malloc.h>
+#include <miiphy.h>
+#include <mmc.h>
+#include <net.h>
+#include <netdev.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <asm/arch/da850_lowlevel.h>
+#include <asm/arch/davinci_misc.h>
+#include <asm/arch/emif_defs.h>
+#include <asm/arch/emac_defs.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/pinmux_defs.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/sdmmc_defs.h>
+#include <asm/arch/timer_defs.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const struct lpsc_resource lpsc[] = {
+ { DAVINCI_LPSC_AEMIF },
+ { DAVINCI_LPSC_SPI1 },
+ { DAVINCI_LPSC_ARM_RAM_ROM },
+ { DAVINCI_LPSC_UART0 },
+ { DAVINCI_LPSC_EMAC },
+ { DAVINCI_LPSC_UART0 },
+ { DAVINCI_LPSC_GPIO },
+ { DAVINCI_LPSC_DDR_EMIF },
+ { DAVINCI_LPSC_UART1 },
+ { DAVINCI_LPSC_UART2 },
+ { DAVINCI_LPSC_MMC_SD1 },
+ { DAVINCI_LPSC_USB20 },
+ { DAVINCI_LPSC_USB11 },
+};
+
+static const struct pinmux_config enbw_pins[] = {
+ { pinmux(0), 8, 0 },
+ { pinmux(0), 8, 1 },
+ { pinmux(0), 8, 2 },
+ { pinmux(0), 8, 3 },
+ { pinmux(0), 8, 4 },
+ { pinmux(0), 8, 5 },
+ { pinmux(1), 4, 0 },
+ { pinmux(1), 8, 1 },
+ { pinmux(1), 8, 2 },
+ { pinmux(1), 8, 3 },
+ { pinmux(1), 8, 4 },
+ { pinmux(1), 8, 5 },
+ { pinmux(1), 8, 6 },
+ { pinmux(1), 4, 7 },
+ { pinmux(2), 8, 0 },
+ { pinmux(5), 1, 0 },
+ { pinmux(5), 1, 3 },
+ { pinmux(5), 1, 7 },
+ { pinmux(6), 1, 0 },
+ { pinmux(6), 1, 1 },
+ { pinmux(6), 8, 2 },
+ { pinmux(6), 8, 3 },
+ { pinmux(6), 1, 4 },
+ { pinmux(6), 8, 5 },
+ { pinmux(6), 1, 7 },
+ { pinmux(7), 8, 2 },
+ { pinmux(7), 1, 3 },
+ { pinmux(7), 1, 6 },
+ { pinmux(7), 1, 7 },
+ { pinmux(13), 8, 2 },
+ { pinmux(13), 8, 3 },
+ { pinmux(13), 8, 4 },
+ { pinmux(13), 8, 5 },
+ { pinmux(13), 8, 6 },
+ { pinmux(13), 8, 7 },
+ { pinmux(14), 8, 0 },
+ { pinmux(14), 8, 1 },
+ { pinmux(16), 8, 1 },
+ { pinmux(16), 8, 2 },
+ { pinmux(16), 8, 3 },
+ { pinmux(16), 8, 4 },
+ { pinmux(16), 8, 5 },
+ { pinmux(16), 8, 6 },
+ { pinmux(16), 8, 7 },
+ { pinmux(17), 1, 0 },
+ { pinmux(17), 1, 1 },
+ { pinmux(17), 1, 2 },
+ { pinmux(17), 8, 3 },
+ { pinmux(17), 8, 4 },
+ { pinmux(17), 8, 5 },
+ { pinmux(17), 8, 6 },
+ { pinmux(17), 8, 7 },
+ { pinmux(18), 8, 0 },
+ { pinmux(18), 8, 1 },
+ { pinmux(18), 2, 2 },
+ { pinmux(18), 2, 3 },
+ { pinmux(18), 2, 4 },
+ { pinmux(18), 8, 6 },
+ { pinmux(18), 8, 7 },
+ { pinmux(19), 8, 0 },
+ { pinmux(19), 2, 1 },
+ { pinmux(19), 2, 2 },
+ { pinmux(19), 2, 3 },
+ { pinmux(19), 2, 4 },
+ { pinmux(19), 8, 5 },
+ { pinmux(19), 8, 6 },
+};
+
+const struct pinmux_resource pinmuxes[] = {
+ PINMUX_ITEM(emac_pins_mii),
+ PINMUX_ITEM(emac_pins_mdio),
+ PINMUX_ITEM(i2c0_pins),
+ PINMUX_ITEM(emifa_pins_cs2),
+ PINMUX_ITEM(emifa_pins_cs3),
+ PINMUX_ITEM(emifa_pins_cs4),
+ PINMUX_ITEM(emifa_pins_nand),
+ PINMUX_ITEM(emifa_pins_nor),
+ PINMUX_ITEM(spi1_pins_base),
+ PINMUX_ITEM(spi1_pins_scs0),
+ PINMUX_ITEM(uart1_pins_txrx),
+ PINMUX_ITEM(uart2_pins_txrx),
+ PINMUX_ITEM(uart2_pins_rtscts),
+ PINMUX_ITEM(enbw_pins),
+};
+
+const int pinmuxes_size = ARRAY_SIZE(pinmuxes);
+
+struct gpio_config {
+ char name[GPIO_NAME_SIZE];
+ unsigned char bank;
+ unsigned char gpio;
+ unsigned char out;
+ unsigned char value;
+};
+
+static const struct gpio_config enbw_gpio_config[] = {
+ { "RS485 enable", 8, 11, 1, 0 },
+ { "RS485 iso", 8, 10, 1, 0 },
+ { "W2HUT RS485 Rx ena", 8, 9, 1, 0 },
+ { "W2HUT RS485 iso", 8, 8, 1, 0 },
+ { "LAN reset", 7, 15, 1, 1 },
+ { "ena 11V PLC", 7, 14, 1, 0 },
+ { "ena 1.5V PLC", 7, 13, 1, 0 },
+ { "disable VBUS", 7, 12, 1, 1 },
+ { "PLC reset", 6, 13, 1, 1 },
+ { "LCM RS", 6, 12, 1, 0 },
+ { "LCM R/W", 6, 11, 1, 0 },
+ { "PLC pairing", 6, 10, 1, 1 },
+ { "PLC MDIO CLK", 6, 9, 1, 0 },
+ { "HK218", 6, 8, 1, 0 },
+ { "HK218 Rx", 6, 1, 1, 1 },
+ { "TPM reset", 6, 0, 1, 1 },
+ { "LCM E", 2, 2, 1, 1 },
+ { "PV-IF RxD ena", 0, 15, 1, 1 },
+ { "LED1", 1, 15, 1, 1 },
+ { "LED2", 0, 1, 1, 1 },
+ { "LED3", 0, 2, 1, 1 },
+ { "LED4", 0, 3, 1, 1 },
+ { "LED5", 0, 4, 1, 1 },
+ { "LED6", 0, 5, 1, 0 },
+ { "LED7", 0, 6, 1, 0 },
+ { "LED8", 0, 14, 1, 0 },
+ { "USER1", 0, 12, 0, 0 },
+ { "USER2", 0, 13, 0, 0 },
+};
+
+#define PHY_POWER 0x0800
+
+static void enbw_cmc_switch(int port, int on)
+{
+ const char *devname;
+ unsigned char phyaddr = 3;
+ unsigned char reg = 0;
+ unsigned short data;
+
+ if (port == 1)
+ phyaddr = 2;
+
+ devname = miiphy_get_current_dev();
+ if (!devname) {
+ printf("Error: no mii device\n");
+ return;
+ }
+ if (miiphy_read(devname, phyaddr, reg, &data) != 0) {
+ printf("Error reading from the PHY addr=%02x reg=%02x\n",
+ phyaddr, reg);
+ return;
+ }
+
+ if (on)
+ data &= ~PHY_POWER;
+ else
+ data |= PHY_POWER;
+
+ if (miiphy_write(devname, phyaddr, reg, data) != 0) {
+ printf("Error writing to the PHY addr=%02x reg=%02x\n",
+ phyaddr, reg);
+ return;
+ }
+}
+
+int board_init(void)
+{
+ int i, ret;
+
+#ifndef CONFIG_USE_IRQ
+ irq_init();
+#endif
+ /* address of boot parameters, not used as booting with DTT */
+ gd->bd->bi_boot_params = 0;
+
+ for (i = 0; i < ARRAY_SIZE(enbw_gpio_config); i++) {
+ int gpio = enbw_gpio_config[i].bank * 16 +
+ enbw_gpio_config[i].gpio;
+
+ ret = gpio_request(gpio, enbw_gpio_config[i].name);
+ if (ret) {
+ printf("%s: Could not get %s gpio\n", __func__,
+ enbw_gpio_config[i].name);
+ return -1;
+ }
+
+ if (enbw_gpio_config[i].out)
+ gpio_direction_output(gpio,
+ enbw_gpio_config[i].value);
+ else
+ gpio_direction_input(gpio);
+ }
+
+ /* setup the SUSPSRC for ARM to control emulation suspend */
+ clrbits_le32(&davinci_syscfg_regs->suspsrc,
+ (DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
+ DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
+ DAVINCI_SYSCFG_SUSPSRC_UART2));
+
+ return 0;
+}
+
+#ifdef CONFIG_DRIVER_TI_EMAC
+/*
+ * Initializes on-board ethernet controllers.
+ */
+int board_eth_init(bd_t *bis)
+{
+#ifdef CONFIG_DRIVER_TI_EMAC
+ davinci_emac_mii_mode_sel(0);
+#endif /* CONFIG_DRIVER_TI_EMAC */
+
+ if (!davinci_emac_initialize()) {
+ printf("Error: Ethernet init failed!\n");
+ return -1;
+ }
+
+ if (hwconfig_subarg_cmp("switch", "lan", "on"))
+ /* Switch port lan on */
+ enbw_cmc_switch(1, 1);
+ else
+ enbw_cmc_switch(1, 0);
+
+ if (hwconfig_subarg_cmp("switch", "pwl", "on"))
+ /* Switch port pwl on */
+ enbw_cmc_switch(2, 1);
+ else
+ enbw_cmc_switch(2, 0);
+
+ return 0;
+}
+#endif /* CONFIG_DRIVER_TI_EMAC */
+
+#ifdef CONFIG_PREBOOT
+static uchar kbd_magic_prefix[] = "key_magic_";
+static uchar kbd_command_prefix[] = "key_cmd_";
+
+struct kbd_data_t {
+ char s1;
+};
+
+struct kbd_data_t *get_keys(struct kbd_data_t *kbd_data)
+{
+ /* read SW1 + SW2 */
+ kbd_data->s1 = gpio_get_value(12) +
+ (gpio_get_value(13) << 1);
+ return kbd_data;
+}
+
+static int compare_magic(const struct kbd_data_t *kbd_data, char *str)
+{
+ char s1 = str[0];
+
+ if (s1 >= '0' && s1 <= '9')
+ s1 -= '0';
+ else if (s1 >= 'a' && s1 <= 'f')
+ s1 = s1 - 'a' + 10;
+ else if (s1 >= 'A' && s1 <= 'F')
+ s1 = s1 - 'A' + 10;
+ else
+ return -1;
+
+ if (s1 != kbd_data->s1)
+ return -1;
+
+ return 0;
+}
+
+static char *key_match(const struct kbd_data_t *kbd_data)
+{
+ char magic[sizeof(kbd_magic_prefix) + 1];
+ char *suffix;
+ char *kbd_magic_keys;
+
+ /*
+ * The following string defines the characters that can be appended
+ * to "key_magic" to form the names of environment variables that
+ * hold "magic" key codes, i. e. such key codes that can cause
+ * pre-boot actions. If the string is empty (""), then only
+ * "key_magic" is checked (old behaviour); the string "125" causes
+ * checks for "key_magic1", "key_magic2" and "key_magic5", etc.
+ */
+ kbd_magic_keys = getenv("magic_keys");
+ if (kbd_magic_keys == NULL)
+ kbd_magic_keys = "";
+
+ /*
+ * loop over all magic keys;
+ * use '\0' suffix in case of empty string
+ */
+ for (suffix = kbd_magic_keys; *suffix ||
+ suffix == kbd_magic_keys; ++suffix) {
+ sprintf(magic, "%s%c", kbd_magic_prefix, *suffix);
+
+ if (compare_magic(kbd_data, getenv(magic)) == 0) {
+ char cmd_name[sizeof(kbd_command_prefix) + 1];
+ char *cmd;
+
+ sprintf(cmd_name, "%s%c", kbd_command_prefix, *suffix);
+ cmd = getenv(cmd_name);
+
+ return cmd;
+ }
+ }
+
+ return NULL;
+}
+#endif /* CONFIG_PREBOOT */
+
+int misc_init_r(void)
+{
+ char *s, buf[32];
+#ifdef CONFIG_PREBOOT
+ struct kbd_data_t kbd_data;
+ /* Decode keys */
+ char *str = strdup(key_match(get_keys(&kbd_data)));
+ /* Set or delete definition */
+ setenv("preboot", str);
+ free(str);
+#endif /* CONFIG_PREBOOT */
+
+ /* count all restarts, and save this in an environment var */
+ s = getenv("restartcount");
+
+ if (s)
+ sprintf(buf, "%ld", simple_strtoul(s, NULL, 10) + 1);
+ else
+ strcpy(buf, "1");
+
+ setenv("restartcount", buf);
+ saveenv();
+
+#ifdef CONFIG_HW_WATCHDOG
+ davinci_hw_watchdog_enable();
+#endif
+
+ return 0;
+}
+
+struct cmc_led {
+ char name[20];
+ unsigned char bank;
+ unsigned char gpio;
+};
+
+struct cmc_led led_table[] = {
+ {"led1", 1, 15},
+ {"led2", 0, 1},
+ {"led3", 0, 2},
+ {"led4", 0, 3},
+ {"led5", 0, 4},
+ {"led6", 0, 5},
+ {"led7", 0, 6},
+ {"led8", 0, 14},
+};
+
+static int cmc_get_led_state(struct cmc_led *led)
+{
+ int value;
+ int gpio = led->bank * 16 + led->gpio;
+
+ value = gpio_get_value(gpio);
+
+ return value;
+}
+
+static int cmc_set_led_state(struct cmc_led *led, int state)
+{
+ int gpio = led->bank * 16 + led->gpio;
+
+ gpio_set_value(gpio, state);
+ return 0;
+}
+
+static int do_led(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
+{
+ struct cmc_led *led;
+ int found = 0;
+ int i = 0;
+ int only_print = 0;
+ int len = ARRAY_SIZE(led_table);
+
+ if (argc < 2)
+ return cmd_usage(cmdtp);
+
+ if (argc < 3)
+ only_print = 1;
+
+ led = led_table;
+ while ((!found) && (i < len)) {
+ if (strcmp(argv[1], led->name) == 0) {
+ found = 1;
+ } else {
+ led++;
+ i++;
+ }
+ }
+ if (!found)
+ return cmd_usage(cmdtp);
+
+ if (only_print) {
+ if (cmc_get_led_state(led))
+ printf("on\n");
+ else
+ printf("off\n");
+
+ return 0;
+ }
+ if (strcmp(argv[2], "on") == 0)
+ cmc_set_led_state(led, 1);
+ else
+ cmc_set_led_state(led, 0);
+
+ return 0;
+}
+
+U_BOOT_CMD(led, 3, 1, do_led,
+ "switch on/off board led",
+ "[name] [on/off]"
+);
+
+#ifdef CONFIG_HW_WATCHDOG
+void hw_watchdog_reset(void)
+{
+ davinci_hw_watchdog_reset();
+}
+#endif
+
+#if defined(CONFIG_POST)
+void arch_memory_failure_handle(void)
+{
+ struct davinci_gpio *gpio = davinci_gpio_bank01;
+ int state = 1;
+
+ /*
+ * if memor< failure blink with the LED 1,2 and 3
+ * as we running from flash, we cannot use the gpio
+ * api here, so access the gpio pin direct through
+ * the gpio register.
+ */
+ while (1) {
+ if (state) {
+ clrbits_le32(&gpio->out_data, 0x80000006);
+ state = 0;
+ } else {
+ setbits_le32(&gpio->out_data, 0x80000006);
+ state = 1;
+ }
+ udelay(500);
+ }
+}
+#endif
+
+#if defined(CONFIG_BOOTCOUNT_LIMIT)
+void bootcount_store(ulong a)
+{
+ struct davinci_rtc *reg =
+ (struct davinci_rtc *)CONFIG_SYS_BOOTCOUNT_ADDR;
+
+ /*
+ * write RTC kick register to enable write
+ * for RTC Scratch registers. Cratch0 and 1 are
+ * used for bootcount values.
+ */
+ out_be32(&reg->kick0r, RTC_KICK0R_WE);
+ out_be32(&reg->kick1r, RTC_KICK1R_WE);
+ out_be32(&reg->scratch0, a);
+ out_be32(&reg->scratch1, BOOTCOUNT_MAGIC);
+}
+
+ulong bootcount_load(void)
+{
+ struct davinci_rtc *reg =
+ (struct davinci_rtc *)CONFIG_SYS_BOOTCOUNT_ADDR;
+
+ if (in_be32(&reg->scratch1) != BOOTCOUNT_MAGIC)
+ return 0;
+ else
+ return in_be32(&reg->scratch0);
+}
+#endif
+
+void board_gpio_init(void)
+{
+ struct davinci_gpio *gpio = davinci_gpio_bank01;
+
+ /*
+ * Power on required peripherals
+ * ARM does not have access by default to PSC0 and PSC1
+ * assuming here that the DSP bootloader has set the IOPU
+ * such that PSC access is available to ARM
+ */
+ if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc)))
+ return;
+
+ /*
+ * set LED (gpio Interface not usable here)
+ * set LED pins to output and state 0
+ */
+ clrbits_le32(&gpio->dir, 0x8000407e);
+ clrbits_le32(&gpio->out_data, 0x8000407e);
+ /* set LED 1 - 5 to state on */
+ setbits_le32(&gpio->out_data, 0x8000001e);
+}
+
+int board_late_init(void)
+{
+ cmc_set_led_state(&led_table[4], 0);
+
+ return 0;
+}
+
+void show_boot_progress(int val)
+{
+ switch (val) {
+ case 1:
+ cmc_set_led_state(&led_table[4], 1);
+ break;
+ case 4:
+ cmc_set_led_state(&led_table[4], 0);
+ break;
+ case 15:
+ cmc_set_led_state(&led_table[4], 1);
+ break;
+ }
+}
+
+#ifdef CONFIG_DAVINCI_MMC
+static struct davinci_mmc mmc_sd1 = {
+ .reg_base = (struct davinci_mmc_regs *)DAVINCI_MMC_SD1_BASE,
+ .input_clk = 228000000,
+ .host_caps = MMC_MODE_4BIT,
+ .voltages = MMC_VDD_32_33 | MMC_VDD_33_34,
+ .version = MMC_CTLR_VERSION_2,
+};
+
+int board_mmc_init(bd_t *bis)
+{
+ mmc_sd1.input_clk = clk_get(DAVINCI_MMC_CLKID);
+ /* Add slot-0 to mmc subsystem */
+ return davinci_mmc_init(bis, &mmc_sd1);
+}
+#endif