[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>

4 files changed, 211 insertions, 0 deletions

diff --git a/arch/arm/configs/orion5x_defconfig b/arch/arm/configs/orion5x_defconfig
index 1464ffe71717..182031615fba 100644
--- a/arch/arm/configs/orion5x_defconfig
+++ b/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
diff --git a/arch/arm/mach-orion5x/Kconfig b/arch/arm/mach-orion5x/Kconfig
index ddcd41b15d17..ff405c47490f 100644
--- a/arch/arm/mach-orion5x/Kconfig
+++ b/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
diff --git a/arch/arm/mach-orion5x/Makefile b/arch/arm/mach-orion5x/Makefile
index fcc48a8864f3..b6da94bdb3f7 100644
--- a/arch/arm/mach-orion5x/Makefile
+++ b/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
diff --git a/arch/arm/mach-orion5x/edmini_v2-setup.c b/arch/arm/mach-orion5x/edmini_v2-setup.c
new file mode 100644
index 000000000000..2d67591dbce6
--- /dev/null
+++ b/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