[ARM] Orion: add support for QNAP TS-109/TS-209

This patch adds support for the Orion/MV88F5182 based QNAP
TS-109/TS-209 NAS device. The driver for the S-35390A RTC
chip on this board has been submitted to LKML separately.

Signed-off-by: Byron Bradley <byron.bbradley@gmail.com>
Tested-by: Oyvind Repvik <repvik@kynisk.com>
Tested-by: Tim Ellis <timtimred@foonas.org>
Tested-by: Herbert Valerio Riedel <hvr@gnu.org>
Acked-by: Tzachi Perelstein <tzachi@marvell.com>

4 files changed, 313 insertions, 0 deletions

diff --git a/arch/arm/configs/orion_defconfig b/arch/arm/configs/orion_defconfig
index 85b80f6b78e1..17a55def1103 100644
--- a/arch/arm/configs/orion_defconfig
+++ b/arch/arm/configs/orion_defconfig
@@ -147,6 +147,7 @@ CONFIG_MACH_DB88F5281=y
 CONFIG_MACH_RD88F5182=y
 CONFIG_MACH_KUROBOX_PRO=y
 CONFIG_MACH_DNS323=y
+CONFIG_MACH_TS209=y
 
 #
 # Boot options
diff --git a/arch/arm/mach-orion/Kconfig b/arch/arm/mach-orion/Kconfig
index bdaed867e450..1dcbb6ac5a30 100644
--- a/arch/arm/mach-orion/Kconfig
+++ b/arch/arm/mach-orion/Kconfig
@@ -30,6 +30,12 @@ config MACH_DNS323
           Say 'Y' here if you want your kernel to support the
           D-Link DNS-323 platform.
 
+config MACH_TS209
+        bool "QNAP TS-109/TS-209"
+        help
+          Say 'Y' here if you want your kernel to support the
+          QNAP TS-109/TS-209 platform.
+
 endmenu
 
 endif
diff --git a/arch/arm/mach-orion/Makefile b/arch/arm/mach-orion/Makefile
index 237ce98ad0ef..f91d937a73e8 100644
--- a/arch/arm/mach-orion/Makefile
+++ b/arch/arm/mach-orion/Makefile
@@ -3,3 +3,4 @@ obj-$(CONFIG_MACH_DB88F5281)	+= db88f5281-setup.o
 obj-$(CONFIG_MACH_RD88F5182)    += rd88f5182-setup.o
 obj-$(CONFIG_MACH_KUROBOX_PRO)  += kurobox_pro-setup.o
 obj-$(CONFIG_MACH_DNS323)       += dns323-setup.o
+obj-$(CONFIG_MACH_TS209)        += ts209-setup.o
diff --git a/arch/arm/mach-orion/ts209-setup.c b/arch/arm/mach-orion/ts209-setup.c
new file mode 100644
index 000000000000..34f88ac24ac8
--- /dev/null
+++ b/arch/arm/mach-orion/ts209-setup.c
@@ -0,0 +1,305 @@
+/*
+ * QNAP TS-109/TS-209 Board Setup
+ *
+ * Maintainer: Byron Bradley <byron.bbradley@gmail.com>
+ *
+ * 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.
+ */
+
+#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/mtd/nand.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/i2c.h>
+#include <asm/mach-types.h>
+#include <asm/gpio.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/pci.h>
+#include <asm/arch/orion.h>
+#include <asm/arch/platform.h>
+#include "common.h"
+
+#define QNAP_TS209_NOR_BOOT_BASE 0xf4000000
+#define QNAP_TS209_NOR_BOOT_SIZE SZ_8M
+
+/****************************************************************************
+ * 8MiB NOR flash. The struct mtd_partition is not in the same order as the
+ *     partitions on the device because we want to keep compatability with
+ *     existing QNAP firmware.
+ *
+ * Layout as used by QNAP:
+ *  [2] 0x00000000-0x00200000 : "Kernel"
+ *  [3] 0x00200000-0x00600000 : "RootFS1"
+ *  [4] 0x00600000-0x00700000 : "RootFS2"
+ *  [6] 0x00700000-0x00760000 : "NAS Config" (read-only)
+ *  [5] 0x00760000-0x00780000 : "U-Boot Config"
+ *  [1] 0x00780000-0x00800000 : "U-Boot" (read-only)
+ ***************************************************************************/
+static struct mtd_partition qnap_ts209_partitions[] = {
+        {
+                .name       = "U-Boot",
+                .size       = 0x00080000,
+                .offset     = 0x00780000,
+                .mask_flags = MTD_WRITEABLE,
+        }, {
+                .name   = "Kernel",
+                .size   = 0x00200000,
+                .offset = 0,
+        }, {
+                .name   = "RootFS1",
+                .size   = 0x00400000,
+                .offset = 0x00200000,
+        }, {
+                .name   = "RootFS2",
+                .size   = 0x00100000,
+                .offset = 0x00600000,
+        }, {
+                .name   = "U-Boot Config",
+                .size   = 0x00020000,
+                .offset = 0x00760000,
+        }, {
+                .name       = "NAS Config",
+                .size       = 0x00060000,
+                .offset     = 0x00700000,
+                .mask_flags = MTD_WRITEABLE,
+        }
+};
+
+static struct physmap_flash_data qnap_ts209_nor_flash_data = {
+        .width    = 1,
+        .parts    = qnap_ts209_partitions,
+        .nr_parts = ARRAY_SIZE(qnap_ts209_partitions)
+};
+
+static struct resource qnap_ts209_nor_flash_resource = {
+        .flags = IORESOURCE_MEM,
+        .start = QNAP_TS209_NOR_BOOT_BASE,
+        .end   = QNAP_TS209_NOR_BOOT_BASE + QNAP_TS209_NOR_BOOT_SIZE - 1,
+};
+
+static struct platform_device qnap_ts209_nor_flash = {
+        .name          = "physmap-flash",
+        .id            = 0,
+        .dev           = { .platform_data = &qnap_ts209_nor_flash_data, },
+        .resource      = &qnap_ts209_nor_flash_resource,
+        .num_resources = 1,
+};
+
+/*****************************************************************************
+ * PCI
+ ****************************************************************************/
+
+#define QNAP_TS209_PCI_SLOT0_OFFS       7
+#define QNAP_TS209_PCI_SLOT0_IRQ_PIN    6
+#define QNAP_TS209_PCI_SLOT1_IRQ_PIN    7
+
+void __init qnap_ts209_pci_preinit(void)
+{
+        int pin;
+
+        /*
+         * Configure PCI GPIO IRQ pins
+         */
+        pin = QNAP_TS209_PCI_SLOT0_IRQ_PIN;
+        if (gpio_request(pin, "PCI Int1") == 0) {
+                if (gpio_direction_input(pin) == 0) {
+                        set_irq_type(gpio_to_irq(pin), IRQT_LOW);
+                } else {
+                        printk(KERN_ERR "qnap_ts209_pci_preinit failed to "
+                                        "set_irq_type pin %d\n", pin);
+                        gpio_free(pin);
+                }
+        } else {
+                printk(KERN_ERR "qnap_ts209_pci_preinit failed to gpio_request "
+                                "%d\n", pin);
+        }
+
+        pin = QNAP_TS209_PCI_SLOT1_IRQ_PIN;
+        if (gpio_request(pin, "PCI Int2") == 0) {
+                if (gpio_direction_input(pin) == 0) {
+                        set_irq_type(gpio_to_irq(pin), IRQT_LOW);
+                } else {
+                        printk(KERN_ERR "qnap_ts209_pci_preinit failed "
+                                        "to set_irq_type pin %d\n", pin);
+                        gpio_free(pin);
+                }
+        } else {
+                printk(KERN_ERR "qnap_ts209_pci_preinit failed to gpio_request "
+                                "%d\n", pin);
+        }
+}
+
+static int __init qnap_ts209_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+        /*
+         * PCIE IRQ is connected internally (not GPIO)
+         */
+        if (dev->bus->number == orion_pcie_local_bus_nr())
+                return IRQ_ORION_PCIE0_INT;
+
+        /*
+         * PCI IRQs are connected via GPIOs
+         */
+        switch (slot - QNAP_TS209_PCI_SLOT0_OFFS) {
+        case 0:
+                return gpio_to_irq(QNAP_TS209_PCI_SLOT0_IRQ_PIN);
+        case 1:
+                return gpio_to_irq(QNAP_TS209_PCI_SLOT1_IRQ_PIN);
+        default:
+                return -1;
+        }
+}
+
+static struct hw_pci qnap_ts209_pci __initdata = {
+        .nr_controllers = 2,
+        .preinit        = qnap_ts209_pci_preinit,
+        .swizzle        = pci_std_swizzle,
+        .setup          = orion_pci_sys_setup,
+        .scan           = orion_pci_sys_scan_bus,
+        .map_irq        = qnap_ts209_pci_map_irq,
+};
+
+static int __init qnap_ts209_pci_init(void)
+{
+        if (machine_is_ts_x09())
+                pci_common_init(&qnap_ts209_pci);
+
+        return 0;
+}
+
+subsys_initcall(qnap_ts209_pci_init);
+
+/*****************************************************************************
+ * Ethernet
+ ****************************************************************************/
+
+static struct mv643xx_eth_platform_data qnap_ts209_eth_data = {
+        .phy_addr       = 8,
+        .force_phy_addr = 1,
+};
+
+/*****************************************************************************
+ * RTC S35390A on I2C bus
+ ****************************************************************************/
+static struct i2c_board_info __initdata qnap_ts209_i2c_rtc = {
+       .driver_name = "rtc-s35390a",
+       .addr        = 0x30,
+};
+
+/****************************************************************************
+ * GPIO Attached Keys
+ *     Power button is attached to the PIC microcontroller
+ ****************************************************************************/
+
+#define QNAP_TS209_GPIO_KEY_MEDIA       1
+#define QNAP_TS209_GPIO_KEY_RESET       2
+
+static struct gpio_keys_button qnap_ts209_buttons[] = {
+        {
+                .code           = KEY_RESTART,
+                .gpio           = QNAP_TS209_GPIO_KEY_MEDIA,
+                .desc           = "USB Copy Button",
+                .active_low     = 1,
+        },
+        {
+                .code           = KEY_POWER,
+                .gpio           = QNAP_TS209_GPIO_KEY_RESET,
+                .desc           = "Reset Button",
+                .active_low     = 1,
+        }
+};
+
+static struct gpio_keys_platform_data qnap_ts209_button_data = {
+        .buttons        = qnap_ts209_buttons,
+        .nbuttons       = ARRAY_SIZE(qnap_ts209_buttons),
+};
+
+static struct platform_device qnap_ts209_button_device = {
+        .name           = "gpio-keys",
+        .id             = -1,
+        .num_resources  = 0,
+        .dev            = { .platform_data  = &qnap_ts209_button_data, },
+};
+
+/*****************************************************************************
+ * General Setup
+ ****************************************************************************/
+
+static struct platform_device *qnap_ts209_devices[] __initdata = {
+        &qnap_ts209_nor_flash,
+        &qnap_ts209_button_device,
+};
+
+static void __init qnap_ts209_init(void)
+{
+        /*
+         * Setup basic Orion functions. Need to be called early.
+         */
+        orion_init();
+
+        /*
+         * Setup flash mapping
+         */
+        orion_setup_cpu_win(ORION_DEV_BOOT, QNAP_TS209_NOR_BOOT_BASE,
+                            QNAP_TS209_NOR_BOOT_SIZE, -1);
+
+        /*
+         * Open a special address decode windows for the PCIE WA.
+         */
+        orion_write(ORION_REGS_BASE | 0x20074, ORION_PCIE_WA_BASE);
+        orion_write(ORION_REGS_BASE | 0x20070, (0x7941 |
+                (((ORION_PCIE_WA_SIZE >> 16) - 1)) << 16));
+
+        /*
+         * Setup Multiplexing Pins --
+         * MPP[0] Reserved
+         * MPP[1] USB copy button (0 active)
+         * MPP[2] Load defaults button (0 active)
+         * MPP[3] GPIO RTC
+         * MPP[4-5] Reserved
+         * MPP[6] PCI Int A
+         * MPP[7] PCI Int B
+         * MPP[8-11] Reserved
+         * MPP[12] SATA 0 presence
+         * MPP[13] SATA 1 presence
+         * MPP[14] SATA 0 active
+         * MPP[15] SATA 1 active
+         * MPP[16] UART1 RXD
+         * MPP[17] UART1 TXD
+         * MPP[18] SW_RST (0 active)
+         * MPP[19] Reserved
+         * MPP[20] PCI clock 0
+         * MPP[21] PCI clock 1
+         * MPP[22] USB 0 over current
+         * MPP[23-25] Reserved
+         */
+        orion_write(MPP_0_7_CTRL, 0x3);
+        orion_write(MPP_8_15_CTRL, 0x55550000);
+        orion_write(MPP_16_19_CTRL, 0x5500);
+        orion_gpio_set_valid_pins(0x3cc0fff);
+
+        platform_add_devices(qnap_ts209_devices,
+                                ARRAY_SIZE(qnap_ts209_devices));
+        i2c_register_board_info(0, &qnap_ts209_i2c_rtc, 1);
+        orion_eth_init(&qnap_ts209_eth_data);
+}
+
+MACHINE_START(TS209, "QNAP TS-109/TS-209")
+        /* Maintainer:  Byron Bradley <byron.bbradley@gmail.com> */
+        .phys_io        = ORION_REGS_BASE,
+        .io_pg_offst    = ((ORION_REGS_BASE) >> 18) & 0xFFFC,
+        .boot_params    = 0x00000100,
+        .init_machine   = qnap_ts209_init,
+        .map_io         = orion_map_io,
+        .init_irq       = orion_init_irq,
+        .timer          = &orion_timer,
+MACHINE_END