[ARM] Orion: add QNAP TS-409 support

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>

3 files changed, 392 insertions, 0 deletions

diff --git a/arch/arm/mach-orion5x/Kconfig b/arch/arm/mach-orion5x/Kconfig
index 93debf336155..0bebf01407cf 100644
--- a/arch/arm/mach-orion5x/Kconfig
+++ b/arch/arm/mach-orion5x/Kconfig
@@ -44,6 +44,12 @@ config MACH_LINKSTATION_PRO
           Buffalo Linkstation Pro/Live platform. Both v1 and
           v2 devices are supported.
 
+config MACH_TS409
+        bool "QNAP TS-409"
+        help
+          Say 'Y' here if you want your kernel to support the
+          QNAP TS-409 platform.
+
 endmenu
 
 endif
diff --git a/arch/arm/mach-orion5x/Makefile b/arch/arm/mach-orion5x/Makefile
index 55da46eeab8d..80196569793e 100644
--- a/arch/arm/mach-orion5x/Makefile
+++ b/arch/arm/mach-orion5x/Makefile
@@ -5,3 +5,4 @@ obj-$(CONFIG_MACH_KUROBOX_PRO)	+= kurobox_pro-setup.o
 obj-$(CONFIG_MACH_LINKSTATION_PRO) += kurobox_pro-setup.o
 obj-$(CONFIG_MACH_DNS323)       += dns323-setup.o
 obj-$(CONFIG_MACH_TS209)        += ts209-setup.o
+obj-$(CONFIG_MACH_TS409)        += ts409-setup.o
diff --git a/arch/arm/mach-orion5x/ts409-setup.c b/arch/arm/mach-orion5x/ts409-setup.c
new file mode 100644
index 000000000000..524e4249f082
--- /dev/null
+++ b/arch/arm/mach-orion5x/ts409-setup.c
@@ -0,0 +1,385 @@
+/*
+ * QNAP TS-409 Board Setup
+ *
+ * Maintainer: Sylver Bruneau <sylver.bruneau@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/mv643xx_eth.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/i2c.h>
+#include <linux/serial_reg.h>
+#include <asm/mach-types.h>
+#include <asm/gpio.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/pci.h>
+#include <asm/arch/orion5x.h>
+#include "common.h"
+#include "mpp.h"
+
+/*****************************************************************************
+ * QNAP TS-409 Info
+ ****************************************************************************/
+
+/*
+ * QNAP TS-409 hardware :
+ * - Marvell 88F5281-D0
+ * - Marvell 88SX7042 SATA controller (PCIe)
+ * - Marvell 88E1118 Gigabit Ethernet PHY
+ * - RTC S35390A (@0x30) on I2C bus
+ * - 8MB NOR flash
+ * - 256MB of DDR-2 RAM
+ */
+
+/*
+ * 8MB NOR flash Device bus boot chip select
+ */
+
+#define QNAP_TS409_NOR_BOOT_BASE 0xff800000
+#define QNAP_TS409_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_ts409_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_ts409_nor_flash_data = {
+        .width          = 1,
+        .parts          = qnap_ts409_partitions,
+        .nr_parts       = ARRAY_SIZE(qnap_ts409_partitions)
+};
+
+static struct resource qnap_ts409_nor_flash_resource = {
+        .flags  = IORESOURCE_MEM,
+        .start  = QNAP_TS409_NOR_BOOT_BASE,
+        .end    = QNAP_TS409_NOR_BOOT_BASE + QNAP_TS409_NOR_BOOT_SIZE - 1,
+};
+
+static struct platform_device qnap_ts409_nor_flash = {
+        .name           = "physmap-flash",
+        .id             = 0,
+        .dev            = { .platform_data = &qnap_ts409_nor_flash_data, },
+        .num_resources  = 1,
+        .resource       = &qnap_ts409_nor_flash_resource,
+};
+
+/*****************************************************************************
+ * PCI
+ ****************************************************************************/
+
+static int __init qnap_ts409_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+        int irq;
+
+        /*
+         * Check for devices with hard-wired IRQs.
+         */
+        irq = orion5x_pci_map_irq(dev, slot, pin);
+        if (irq != -1)
+                return irq;
+
+        /*
+         * PCI isn't used on the TS-409
+         */
+        return -1;
+}
+
+static struct hw_pci qnap_ts409_pci __initdata = {
+        .nr_controllers = 2,
+        .swizzle        = pci_std_swizzle,
+        .setup          = orion5x_pci_sys_setup,
+        .scan           = orion5x_pci_sys_scan_bus,
+        .map_irq        = qnap_ts409_pci_map_irq,
+};
+
+static int __init qnap_ts409_pci_init(void)
+{
+        if (machine_is_ts409())
+                pci_common_init(&qnap_ts409_pci);
+
+        return 0;
+}
+
+subsys_initcall(qnap_ts409_pci_init);
+
+/*****************************************************************************
+ * Ethernet
+ ****************************************************************************/
+
+static struct mv643xx_eth_platform_data qnap_ts409_eth_data = {
+        .phy_addr       = 8,
+};
+
+static int __init parse_hex_nibble(char n)
+{
+        if (n >= '0' && n <= '9')
+                return n - '0';
+
+        if (n >= 'A' && n <= 'F')
+                return n - 'A' + 10;
+
+        if (n >= 'a' && n <= 'f')
+                return n - 'a' + 10;
+
+        return -1;
+}
+
+static int __init parse_hex_byte(const char *b)
+{
+        int hi;
+        int lo;
+
+        hi = parse_hex_nibble(b[0]);
+        lo = parse_hex_nibble(b[1]);
+
+        if (hi < 0 || lo < 0)
+                return -1;
+
+        return (hi << 4) | lo;
+}
+
+static int __init check_mac_addr(const char *addr_str)
+{
+        u_int8_t addr[6];
+        int i;
+
+        for (i = 0; i < 6; i++) {
+                int byte;
+
+                /*
+                 * Enforce "xx:xx:xx:xx:xx:xx\n" format.
+                 */
+                if (addr_str[(i * 3) + 2] != ((i < 5) ? ':' : '\n'))
+                        return -1;
+
+                byte = parse_hex_byte(addr_str + (i * 3));
+                if (byte < 0)
+                        return -1;
+                addr[i] = byte;
+        }
+
+        printk(KERN_INFO "ts409: found ethernet mac address ");
+        for (i = 0; i < 6; i++)
+                printk("%.2x%s", addr[i], (i < 5) ? ":" : ".\n");
+
+        memcpy(qnap_ts409_eth_data.mac_addr, addr, 6);
+
+        return 0;
+}
+
+/*
+ * The 'NAS Config' flash partition has an ext2 filesystem which
+ * contains a file that has the ethernet MAC address in plain text
+ * (format "xx:xx:xx:xx:xx:xx\n").
+ */
+static void __init ts409_find_mac_addr(void)
+{
+        unsigned long addr;
+
+        for (addr = 0x00700000; addr < 0x00760000; addr += 1024) {
+                char *nor_page;
+                int ret = 0;
+
+                nor_page = ioremap(QNAP_TS409_NOR_BOOT_BASE + addr, 1024);
+                if (nor_page != NULL) {
+                        ret = check_mac_addr(nor_page);
+                        iounmap(nor_page);
+                }
+
+                if (ret == 0)
+                        break;
+        }
+}
+
+/*****************************************************************************
+ * RTC S35390A on I2C bus
+ ****************************************************************************/
+
+#define TS409_RTC_GPIO  10
+
+static struct i2c_board_info __initdata qnap_ts409_i2c_rtc = {
+        I2C_BOARD_INFO("s35390a", 0x30),
+};
+
+/****************************************************************************
+ * GPIO Attached Keys
+ *     Power button is attached to the PIC microcontroller
+ ****************************************************************************/
+
+#define QNAP_TS409_GPIO_KEY_MEDIA       15
+
+static struct gpio_keys_button qnap_ts409_buttons[] = {
+        {
+                .code           = KEY_RESTART,
+                .gpio           = QNAP_TS409_GPIO_KEY_MEDIA,
+                .desc           = "USB Copy Button",
+                .active_low     = 1,
+        },
+};
+
+static struct gpio_keys_platform_data qnap_ts409_button_data = {
+        .buttons        = qnap_ts409_buttons,
+        .nbuttons       = ARRAY_SIZE(qnap_ts409_buttons),
+};
+
+static struct platform_device qnap_ts409_button_device = {
+        .name           = "gpio-keys",
+        .id             = -1,
+        .num_resources  = 0,
+        .dev            = {
+                .platform_data  = &qnap_ts409_button_data,
+        },
+};
+
+/*****************************************************************************
+ * General Setup
+ ****************************************************************************/
+static struct orion5x_mpp_mode ts409_mpp_modes[] __initdata = {
+        {  0, MPP_UNUSED },
+        {  1, MPP_UNUSED },
+        {  2, MPP_UNUSED },
+        {  3, MPP_UNUSED },
+        {  4, MPP_GPIO },               /* HDD 1 status */
+        {  5, MPP_GPIO },               /* HDD 2 status */
+        {  6, MPP_GPIO },               /* HDD 3 status */
+        {  7, MPP_GPIO },               /* HDD 4 status */
+        {  8, MPP_UNUSED },
+        {  9, MPP_UNUSED },
+        { 10, MPP_GPIO },               /* RTC int */
+        { 11, MPP_UNUSED },
+        { 12, MPP_UNUSED },
+        { 13, MPP_UNUSED },
+        { 14, MPP_GPIO },               /* SW_RST */
+        { 15, MPP_GPIO },               /* USB copy button */
+        { 16, MPP_UART },               /* UART1 RXD */
+        { 17, MPP_UART },               /* UART1 TXD */
+        { 18, MPP_UNUSED },
+        { 19, MPP_UNUSED },
+        { -1 },
+};
+
+/*
+ * QNAP TS-409 specific power off method via UART1-attached PIC
+ */
+
+#define UART1_REG(x)  (UART1_VIRT_BASE + ((UART_##x) << 2))
+
+static void qnap_ts409_power_off(void)
+{
+        /* 19200 baud divisor */
+        const unsigned divisor = ((ORION5X_TCLK + (8 * 19200)) / (16 * 19200));
+
+        pr_info("%s: triggering power-off...\n", __func__);
+
+        /* hijack uart1 and reset into sane state (19200,8n1) */
+        writel(0x83, UART1_REG(LCR));
+        writel(divisor & 0xff, UART1_REG(DLL));
+        writel((divisor >> 8) & 0xff, UART1_REG(DLM));
+        writel(0x03, UART1_REG(LCR));
+        writel(0x00, UART1_REG(IER));
+        writel(0x00, UART1_REG(FCR));
+        writel(0x00, UART1_REG(MCR));
+
+        /* send the power-off command 'A' to PIC */
+        writel('A', UART1_REG(TX));
+}
+
+static void __init qnap_ts409_init(void)
+{
+        /*
+         * Setup basic Orion functions. Need to be called early.
+         */
+        orion5x_init();
+
+        orion5x_mpp_conf(ts409_mpp_modes);
+
+        /*
+         * Configure peripherals.
+         */
+        orion5x_ehci0_init();
+        ts409_find_mac_addr();
+        orion5x_eth_init(&qnap_ts409_eth_data);
+        orion5x_i2c_init();
+        orion5x_uart0_init();
+
+        orion5x_setup_dev_boot_win(QNAP_TS409_NOR_BOOT_BASE,
+                                   QNAP_TS409_NOR_BOOT_SIZE);
+        platform_device_register(&qnap_ts409_nor_flash);
+
+        platform_device_register(&qnap_ts409_button_device);
+
+        /* Get RTC IRQ and register the chip */
+        if (gpio_request(TS409_RTC_GPIO, "rtc") == 0) {
+                if (gpio_direction_input(TS409_RTC_GPIO) == 0)
+                        qnap_ts409_i2c_rtc.irq = gpio_to_irq(TS409_RTC_GPIO);
+                else
+                        gpio_free(TS409_RTC_GPIO);
+        }
+        if (qnap_ts409_i2c_rtc.irq == 0)
+                pr_warning("qnap_ts409_init: failed to get RTC IRQ\n");
+        i2c_register_board_info(0, &qnap_ts409_i2c_rtc, 1);
+
+        /* register ts409 specific power-off method */
+        pm_power_off = qnap_ts409_power_off;
+}
+
+MACHINE_START(TS409, "QNAP TS-409")
+        /* Maintainer:  Sylver Bruneau <sylver.bruneau@gmail.com> */
+        .phys_io        = ORION5X_REGS_PHYS_BASE,
+        .io_pg_offst    = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
+        .boot_params    = 0x00000100,
+        .init_machine   = qnap_ts409_init,
+        .map_io         = orion5x_map_io,
+        .init_irq       = orion5x_init_irq,
+        .timer          = &orion5x_timer,
+        .fixup          = tag_fixup_mem32,
+MACHINE_END