[ARM] Orion: add LaCie Ethernet Disk mini V2 support

This patch adds support for the LaCie Ethernet Disk mini V2.

Signed-off-by: Albert Aribaud <albert.aribaud@free.fr>
Signed-off-by: Christopher Moore <moore@free.fr>
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>

arch/arm/configs/orion5x_defconfig

@@ -170,6 +170,7 @@ CONFIG_MACH_TS409=y
 CONFIG_MACH_WRT350N_V2=y
 CONFIG_MACH_TS78XX=y
 CONFIG_MACH_MV2120=y
+CONFIG_MACH_EDMINI_V2=y
 CONFIG_MACH_MSS2=y
 CONFIG_MACH_WNR854T=y
 CONFIG_MACH_RD88F5181L_GE=y

arch/arm/mach-orion5x/Kconfig

@@ -68,6 +68,13 @@ config MACH_MV2120
 	  Say 'Y' here if you want your kernel to support the
 	  HP Media Vault mv2120 or mv5100.
 
+config MACH_EDMINI_V2
+	bool "LaCie Ethernet Disk mini V2"
+	select I2C_BOARDINFO
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  LaCie Ethernet Disk mini V2.
+
 config MACH_MSS2
 	bool "Maxtor Shared Storage II"
 	help

arch/arm/mach-orion5x/Makefile

@@ -9,6 +9,7 @@ obj-$(CONFIG_MACH_TS409)	+= ts409-setup.o tsx09-common.o
 obj-$(CONFIG_MACH_WRT350N_V2)	+= wrt350n-v2-setup.o
 obj-$(CONFIG_MACH_TS78XX)	+= ts78xx-setup.o
 obj-$(CONFIG_MACH_MV2120)	+= mv2120-setup.o
+obj-$(CONFIG_MACH_EDMINI_V2)	+= edmini_v2-setup.o
 obj-$(CONFIG_MACH_MSS2)		+= mss2-setup.o
 obj-$(CONFIG_MACH_WNR854T)	+= wnr854t-setup.o
 obj-$(CONFIG_MACH_RD88F5181L_GE)	+= rd88f5181l-ge-setup.o

arch/arm/mach-orion5x/edmini_v2-setup.c

@@ -0,0 +1,202 @@
+/*
+ * arch/arm/mach-orion5x/edmini_v2-setup.c
+ *
+ * LaCie Ethernet Disk mini V2 Setup
+ *
+ * Copyright (C) 2008 Christopher Moore <moore@free.fr>
+ * Copyright (C) 2008 Albert Aribaud <albert.aribaud@free.fr>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+/*
+ * TODO: add Orion USB device port init when kernel.org support is added.
+ * TODO: add flash write support: see below.
+ * TODO: add power-off support.
+ * TODO: add I2C EEPROM support.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/pci.h>
+#include <linux/irq.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/i2c.h>
+#include <linux/ata_platform.h>
+#include <linux/gpio.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/pci.h>
+#include <mach/orion5x.h>
+#include "common.h"
+#include "mpp.h"
+
+/*****************************************************************************
+ * EDMINI_V2 Info
+ ****************************************************************************/
+
+/*
+ * 512KB NOR flash Device bus boot chip select
+ */
+
+#define EDMINI_V2_NOR_BOOT_BASE		0xfff80000
+#define EDMINI_V2_NOR_BOOT_SIZE		SZ_512K
+
+/*****************************************************************************
+ * 512KB NOR Flash on BOOT Device
+ ****************************************************************************/
+
+/*
+ * Currently the MTD code does not recognize the MX29LV400CBCT as a bottom
+ * -type device. This could cause risks of accidentally erasing critical
+ * flash sectors. We thus define a single, write-protected partition covering
+ * the whole flash.
+ * TODO: once the flash part TOP/BOTTOM detection issue is sorted out in the MTD
+ * code, break this into at least three partitions: 'u-boot code', 'u-boot
+ * environment' and 'whatever is left'.
+ */
+
+static struct mtd_partition edmini_v2_partitions[] = {
+	{
+		.name		= "Full512kb",
+		.size		= 0x00080000,
+		.offset		= 0x00000000,
+		.mask_flags	= MTD_WRITEABLE,
+	},
+};
+
+static struct physmap_flash_data edmini_v2_nor_flash_data = {
+	.width		= 1,
+	.parts		= edmini_v2_partitions,
+	.nr_parts	= ARRAY_SIZE(edmini_v2_partitions),
+};
+
+static struct resource edmini_v2_nor_flash_resource = {
+	.flags			= IORESOURCE_MEM,
+	.start			= EDMINI_V2_NOR_BOOT_BASE,
+	.end			= EDMINI_V2_NOR_BOOT_BASE
+		+ EDMINI_V2_NOR_BOOT_SIZE - 1,
+};
+
+static struct platform_device edmini_v2_nor_flash = {
+	.name			= "physmap-flash",
+	.id			= 0,
+	.dev		= {
+		.platform_data	= &edmini_v2_nor_flash_data,
+	},
+	.num_resources		= 1,
+	.resource		= &edmini_v2_nor_flash_resource,
+};
+
+/*****************************************************************************
+ * Ethernet
+ ****************************************************************************/
+
+static struct mv643xx_eth_platform_data edmini_v2_eth_data = {
+	.phy_addr	= 8,
+};
+
+/*****************************************************************************
+ * RTC 5C372a on I2C bus
+ ****************************************************************************/
+
+#define EDMINIV2_RTC_GPIO	3
+
+static struct i2c_board_info __initdata edmini_v2_i2c_rtc = {
+	I2C_BOARD_INFO("rs5c372a", 0x32),
+	.irq = 0,
+};
+
+/*****************************************************************************
+ * Sata
+ ****************************************************************************/
+
+static struct mv_sata_platform_data edmini_v2_sata_data = {
+	.n_ports	= 2,
+};
+
+/*****************************************************************************
+ * General Setup
+ ****************************************************************************/
+static struct orion5x_mpp_mode edminiv2_mpp_modes[] __initdata = {
+	{  0, MPP_UNUSED },
+	{  1, MPP_UNUSED },
+	{  2, MPP_UNUSED },
+	{  3, MPP_GPIO },	/* RTC interrupt */
+	{  4, MPP_UNUSED },
+	{  5, MPP_UNUSED },
+	{  6, MPP_UNUSED },
+	{  7, MPP_UNUSED },
+	{  8, MPP_UNUSED },
+	{  9, MPP_UNUSED },
+	{ 10, MPP_UNUSED },
+	{ 11, MPP_UNUSED },
+	{ 12, MPP_SATA_LED },	/* SATA 0 presence */
+	{ 13, MPP_SATA_LED },	/* SATA 1 presence */
+	{ 14, MPP_SATA_LED },	/* SATA 0 active */
+	{ 15, MPP_SATA_LED },	/* SATA 1 active */
+	/* 16: Power LED control (0 = On, 1 = Off) */
+	{ 16, MPP_GPIO },
+	/* 17: Power LED control select (0 = CPLD, 1 = GPIO16) */
+	{ 17, MPP_GPIO },
+	/* 18: Power button status (0 = Released, 1 = Pressed) */
+	{ 18, MPP_GPIO },
+	{ 19, MPP_UNUSED },
+	{ -1 }
+};
+
+static void __init edmini_v2_init(void)
+{
+	/*
+	 * Setup basic Orion functions. Need to be called early.
+	 */
+	orion5x_init();
+
+	orion5x_mpp_conf(edminiv2_mpp_modes);
+
+	/*
+	 * Configure peripherals.
+	 */
+	orion5x_ehci0_init();
+	orion5x_eth_init(&edmini_v2_eth_data);
+	orion5x_i2c_init();
+	orion5x_sata_init(&edmini_v2_sata_data);
+	orion5x_uart0_init();
+
+	orion5x_setup_dev_boot_win(EDMINI_V2_NOR_BOOT_BASE,
+				EDMINI_V2_NOR_BOOT_SIZE);
+	platform_device_register(&edmini_v2_nor_flash);
+
+	pr_notice("edmini_v2: USB device port, flash write and power-off "
+		  "are not yet supported.\n");
+
+	/* Get RTC IRQ and register the chip */
+	if (gpio_request(EDMINIV2_RTC_GPIO, "rtc") == 0) {
+		if (gpio_direction_input(EDMINIV2_RTC_GPIO) == 0)
+			edmini_v2_i2c_rtc.irq = gpio_to_irq(EDMINIV2_RTC_GPIO);
+		else
+			gpio_free(EDMINIV2_RTC_GPIO);
+	}
+
+	if (edmini_v2_i2c_rtc.irq == 0)
+		pr_warning("edmini_v2: failed to get RTC IRQ\n");
+
+	i2c_register_board_info(0, &edmini_v2_i2c_rtc, 1);
+}
+
+/* Warning: LaCie use a wrong mach-type (0x20e=526) in their bootloader. */
+MACHINE_START(EDMINI_V2, "LaCie Ethernet Disk mini V2")
+	/* Maintainer: Christopher Moore <moore@free.fr> */
+	.phys_io	= ORION5X_REGS_PHYS_BASE,
+	.io_pg_offst	= ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
+	.boot_params	= 0x00000100,
+	.init_machine	= edmini_v2_init,
+	.map_io		= orion5x_map_io,
+	.init_irq	= orion5x_init_irq,
+	.timer		= &orion5x_timer,
+	.fixup		= tag_fixup_mem32,
+MACHINE_END