Kirkwood: add lschlv2 and lsxhl board support

This patch adds support for both the Linkstation Live (LS-CHLv2) and
Linkstation Pro (LS-XHL) by Buffalo.

Signed-off-by: Michael Walle <michael@walle.cc>
Cc: Prafulla Wadaskar <prafulla@marvell.com>

1 files changed, 283 insertions, 0 deletions

diff --git a/board/buffalo/lsxl/lsxl.c b/board/buffalo/lsxl/lsxl.c
new file mode 100644
index 0000000000..fe155112c9
--- /dev/null
+++ b/board/buffalo/lsxl/lsxl.c
@@ -0,0 +1,283 @@
+/*
+ * Copyright (c) 2012 Michael Walle
+ * Michael Walle <michael@walle.cc>
+ *
+ * Based on sheevaplug/sheevaplug.c by
+ *   Marvell Semiconductor <www.marvell.com>
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include <common.h>
+#include <net.h>
+#include <malloc.h>
+#include <netdev.h>
+#include <miiphy.h>
+#include <asm/arch/kirkwood.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/mpp.h>
+#include <asm/arch/gpio.h>
+#include <spi_flash.h>
+
+#include "lsxl.h"
+
+/*
+ * Rescue mode
+ *
+ * Selected by holding the push button for 3 seconds, while powering on
+ * the device.
+ *
+ * These linkstations don't have a (populated) serial port. There is no
+ * way to access an (unmodified) board other than using the netconsole. If
+ * you want to recover from a bad environment setting or an empty environment,
+ * you can do this only with a working network connection. Therefore, a random
+ * ethernet address is generated if none is set and a DHCP request is sent.
+ * After a successful DHCP response is received, the network settings are
+ * configured and the ncip parameter is set to the serverip. Eg. for a working
+ * resuce mode, you should set 'next-server' to the host where the netconsole
+ * client is started.
+ * Additionally, the bootsource is set to 'rescue'.
+ */
+
+#ifndef CONFIG_ENV_OVERWRITE
+# error "You need to set CONFIG_ENV_OVERWRITE"
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_early_init_f(void)
+{
+	/*
+	 * default gpio configuration
+	 * There are maximum 64 gpios controlled through 2 sets of registers
+	 * the below configuration configures mainly initial LED status
+	 */
+	kw_config_gpio(LSXL_OE_VAL_LOW,
+			LSXL_OE_VAL_HIGH,
+			LSXL_OE_LOW, LSXL_OE_HIGH);
+
+	/*
+	 * Multi-Purpose Pins Functionality configuration
+	 * These strappings are taken from the original vendor uboot port.
+	 */
+	u32 kwmpp_config[] = {
+		MPP0_SPI_SCn,
+		MPP1_SPI_MOSI,
+		MPP2_SPI_SCK,
+		MPP3_SPI_MISO,
+		MPP4_UART0_RXD,
+		MPP5_UART0_TXD,
+		MPP6_SYSRST_OUTn,
+		MPP7_GPO,
+		MPP8_GPIO,
+		MPP9_GPIO,
+		MPP10_GPO,		/* HDD power */
+		MPP11_GPIO,		/* USB Vbus enable */
+		MPP12_SD_CLK,
+		MPP13_SD_CMD,
+		MPP14_SD_D0,
+		MPP15_SD_D1,
+		MPP16_SD_D2,
+		MPP17_SD_D3,
+		MPP18_GPO,		/* fan speed high */
+		MPP19_GPO,		/* fan speed low */
+		MPP20_GE1_0,
+		MPP21_GE1_1,
+		MPP22_GE1_2,
+		MPP23_GE1_3,
+		MPP24_GE1_4,
+		MPP25_GE1_5,
+		MPP26_GE1_6,
+		MPP27_GE1_7,
+		MPP28_GPIO,
+		MPP29_GPIO,
+		MPP30_GE1_10,
+		MPP31_GE1_11,
+		MPP32_GE1_12,
+		MPP33_GE1_13,
+		MPP34_GPIO,
+		MPP35_GPIO,
+		MPP36_GPIO,		/* function LED */
+		MPP37_GPIO,		/* alarm LED */
+		MPP38_GPIO,		/* info LED */
+		MPP39_GPIO,		/* power LED */
+		MPP40_GPIO,		/* fan alarm */
+		MPP41_GPIO,		/* funtion button */
+		MPP42_GPIO,		/* power switch */
+		MPP43_GPIO,		/* power auto switch */
+		MPP44_GPIO,
+		MPP45_GPIO,
+		MPP46_GPIO,
+		MPP47_GPIO,
+		MPP48_GPIO,		/* function red LED */
+		MPP49_GPIO,
+		0
+	};
+
+	kirkwood_mpp_conf(kwmpp_config, NULL);
+
+	return 0;
+}
+
+#define LED_OFF             0
+#define LED_ALARM_ON        1
+#define LED_ALARM_BLINKING  2
+#define LED_POWER_ON        3
+#define LED_POWER_BLINKING  4
+#define LED_INFO_ON         5
+#define LED_INFO_BLINKING   6
+
+static void __set_led(int blink_alarm, int blink_info, int blink_power,
+		int value_alarm, int value_info, int value_power)
+{
+	kw_gpio_set_blink(GPIO_ALARM_LED, blink_alarm);
+	kw_gpio_set_blink(GPIO_INFO_LED, blink_info);
+	kw_gpio_set_blink(GPIO_POWER_LED, blink_power);
+	kw_gpio_set_value(GPIO_ALARM_LED, value_alarm);
+	kw_gpio_set_value(GPIO_INFO_LED, value_info);
+	kw_gpio_set_value(GPIO_POWER_LED, value_power);
+}
+
+static void set_led(int state)
+{
+	switch (state) {
+	case LED_OFF:
+		__set_led(0, 0, 0, 0, 0, 0);
+		break;
+	case LED_ALARM_ON:
+		__set_led(0, 0, 0, 0, 1, 1);
+		break;
+	case LED_ALARM_BLINKING:
+		__set_led(1, 0, 0, 1, 1, 1);
+		break;
+	case LED_INFO_ON:
+		__set_led(0, 0, 0, 1, 0, 1);
+		break;
+	case LED_INFO_BLINKING:
+		__set_led(0, 1, 0, 1, 1, 1);
+		break;
+	case LED_POWER_ON:
+		__set_led(0, 0, 0, 1, 1, 0);
+		break;
+	case LED_POWER_BLINKING:
+		__set_led(0, 0, 1, 1, 1, 1);
+		break;
+	}
+}
+
+int board_init(void)
+{
+	/* address of boot parameters */
+	gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100;
+
+	set_led(LED_POWER_BLINKING);
+
+	return 0;
+}
+
+#ifdef CONFIG_MISC_INIT_R
+void check_enetaddr(void)
+{
+	uchar enetaddr[6];
+
+	if (!eth_getenv_enetaddr("ethaddr", enetaddr)) {
+		/* signal unset/invalid ethaddr to user */
+		set_led(LED_INFO_BLINKING);
+	}
+}
+
+static void erase_environment(void)
+{
+	struct spi_flash *flash;
+
+	printf("Erasing environment..\n");
+	flash = spi_flash_probe(0, 0, 1000000, SPI_MODE_3);
+	if (!flash) {
+		printf("Erasing flash failed\n");
+		return;
+	}
+
+	spi_flash_erase(flash, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE);
+	spi_flash_free(flash);
+	do_reset(NULL, 0, 0, NULL);
+}
+
+static void rescue_mode(void)
+{
+	uchar enetaddr[6];
+
+	printf("Entering rescue mode..\n");
+#ifdef CONFIG_RANDOM_MACADDR
+	if (!eth_getenv_enetaddr("ethaddr", enetaddr)) {
+		eth_random_enetaddr(enetaddr);
+		if (eth_setenv_enetaddr("ethaddr", enetaddr)) {
+			printf("Failed to set ethernet address\n");
+				set_led(LED_ALARM_BLINKING);
+			return;
+		}
+	}
+#endif
+	setenv("bootsource", "rescue");
+}
+
+static void check_push_button(void)
+{
+	int i = 0;
+
+	while (!kw_gpio_get_value(GPIO_FUNC_BUTTON)) {
+		udelay(100000);
+		i++;
+
+		if (i == 10)
+			set_led(LED_INFO_ON);
+
+		if (i >= 100) {
+			set_led(LED_INFO_BLINKING);
+			break;
+		}
+	}
+
+	if (i >= 100)
+		erase_environment();
+	else if (i >= 10)
+		rescue_mode();
+}
+
+int misc_init_r(void)
+{
+	check_enetaddr();
+	check_push_button();
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_SHOW_BOOT_PROGRESS
+void show_boot_progress(int progress)
+{
+	if (progress > 0)
+		return;
+
+	/* this is not an error, eg. bootp with autoload=no will trigger this */
+	if (progress == -BOOTSTAGE_ID_NET_LOADED)
+		return;
+
+	set_led(LED_ALARM_BLINKING);
+}
+#endif