[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 93debf33615..0bebf01407c 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 55da46eeab8..80196569793 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 00000000000..524e4249f08
--- /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