[ARM] OrionNAS RD board support

serial, NOR, PCI and Ethernet is activated at the moment.

Signed-off-by: Ronen Shitrit <rshitrit@marvell.com>
Reviewed-by: Tzachi Perelstein <tzachi@marvell.com>
Reviewed-by: Nicolas Pitre <nico@marvell.com>
Reviewed-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>

3 files changed, 314 insertions, 0 deletions

diff --git a/arch/arm/mach-orion/Kconfig b/arch/arm/mach-orion/Kconfig
index 5c1dee8724c1..73d9f9aa283f 100644
--- a/arch/arm/mach-orion/Kconfig
+++ b/arch/arm/mach-orion/Kconfig
@@ -9,6 +9,13 @@ config MACH_DB88F5281
 	  Say 'Y' here if you want your kernel to support the
 	  Marvell Orion-2 (88F5281) Development Board
 
+config MACH_RD88F5182
+	bool "Marvell Orion-NAS Reference Design"
+	select I2C_BOARDINFO
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  Marvell Orion-NAS (88F5182) RD2
+
 endmenu
 
 endif
diff --git a/arch/arm/mach-orion/Makefile b/arch/arm/mach-orion/Makefile
index 55c59bb7f1d9..1cbdd7513120 100644
--- a/arch/arm/mach-orion/Makefile
+++ b/arch/arm/mach-orion/Makefile
@@ -1,2 +1,3 @@
 obj-y				+= common.o addr-map.o pci.o gpio.o irq.o time.o
 obj-$(CONFIG_MACH_DB88F5281)	+= db88f5281-setup.o
+obj-$(CONFIG_MACH_RD88F5182)	+= rd88f5182-setup.o
diff --git a/arch/arm/mach-orion/rd88f5182-setup.c b/arch/arm/mach-orion/rd88f5182-setup.c
new file mode 100644
index 000000000000..026d74325d01
--- /dev/null
+++ b/arch/arm/mach-orion/rd88f5182-setup.c
@@ -0,0 +1,306 @@
+/*
+ * arch/arm/mach-orion/rd88f5182-setup.c
+ *
+ * Marvell Orion-NAS Reference Design Setup
+ *
+ * Maintainer: Ronen Shitrit <rshitrit@marvell.com>
+ *
+ * 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.
+ */
+
+#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 <asm/mach-types.h>
+#include <asm/gpio.h>
+#include <asm/leds.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/pci.h>
+#include <asm/arch/orion.h>
+#include <asm/arch/platform.h>
+#include "common.h"
+
+/*****************************************************************************
+ * RD-88F5182 Info
+ ****************************************************************************/
+
+/*
+ * 512K NOR flash Device bus boot chip select
+ */
+
+#define RD88F5182_NOR_BOOT_BASE		0xf4000000
+#define RD88F5182_NOR_BOOT_SIZE		SZ_512K
+
+/*
+ * 16M NOR flash on Device bus chip select 1
+ */
+
+#define RD88F5182_NOR_BASE		0xfc000000
+#define RD88F5182_NOR_SIZE		SZ_16M
+
+/*
+ * PCI
+ */
+
+#define RD88F5182_PCI_SLOT0_OFFS	7
+#define RD88F5182_PCI_SLOT0_IRQ_A_PIN	7
+#define RD88F5182_PCI_SLOT0_IRQ_B_PIN	6
+
+/*
+ * GPIO Debug LED
+ */
+
+#define RD88F5182_GPIO_DBG_LED		0
+
+/*****************************************************************************
+ * 16M NOR Flash on Device bus CS1
+ ****************************************************************************/
+
+static struct physmap_flash_data rd88f5182_nor_flash_data = {
+	.width		= 1,
+};
+
+static struct resource rd88f5182_nor_flash_resource = {
+	.flags			= IORESOURCE_MEM,
+	.start			= RD88F5182_NOR_BASE,
+	.end			= RD88F5182_NOR_BASE + RD88F5182_NOR_SIZE - 1,
+};
+
+static struct platform_device rd88f5182_nor_flash = {
+	.name			= "physmap-flash",
+	.id			= 0,
+	.dev		= {
+		.platform_data	= &rd88f5182_nor_flash_data,
+	},
+	.num_resources		= 1,
+	.resource		= &rd88f5182_nor_flash_resource,
+};
+
+#ifdef CONFIG_LEDS
+
+/*****************************************************************************
+ * Use GPIO debug led as CPU active indication
+ ****************************************************************************/
+
+static void rd88f5182_dbgled_event(led_event_t evt)
+{
+	int val;
+
+	if (evt == led_idle_end)
+		val = 1;
+	else if (evt == led_idle_start)
+		val = 0;
+	else
+		return;
+
+	gpio_set_value(RD88F5182_GPIO_DBG_LED, val);
+}
+
+static int __init rd88f5182_dbgled_init(void)
+{
+	int pin;
+
+	if (machine_is_rd88f5182()) {
+		pin = RD88F5182_GPIO_DBG_LED;
+
+		if (gpio_request(pin, "DBGLED") == 0) {
+			if (gpio_direction_output(pin, 0) != 0) {
+				printk(KERN_ERR "rd88f5182_dbgled_init failed "
+						"to set output pin %d\n", pin);
+				gpio_free(pin);
+				return 0;
+			}
+		} else {
+			printk(KERN_ERR "rd88f5182_dbgled_init failed "
+					"to request gpio %d\n", pin);
+			return 0;
+		}
+
+		leds_event = rd88f5182_dbgled_event;
+	}
+	return 0;
+}
+
+__initcall(rd88f5182_dbgled_init);
+
+#endif
+
+/*****************************************************************************
+ * PCI
+ ****************************************************************************/
+
+void __init rd88f5182_pci_preinit(void)
+{
+	int pin;
+
+	/*
+	 * Configure PCI GPIO IRQ pins
+	 */
+	pin = RD88F5182_PCI_SLOT0_IRQ_A_PIN;
+	if (gpio_request(pin, "PCI IntA") == 0) {
+		if (gpio_direction_input(pin) == 0) {
+			set_irq_type(gpio_to_irq(pin), IRQT_LOW);
+		} else {
+			printk(KERN_ERR "rd88f5182_pci_preinit faield to "
+					"set_irq_type pin %d\n", pin);
+			gpio_free(pin);
+		}
+	} else {
+		printk(KERN_ERR "rd88f5182_pci_preinit failed to request gpio %d\n", pin);
+	}
+
+	pin = RD88F5182_PCI_SLOT0_IRQ_B_PIN;
+	if (gpio_request(pin, "PCI IntB") == 0) {
+		if (gpio_direction_input(pin) == 0) {
+			set_irq_type(gpio_to_irq(pin), IRQT_LOW);
+		} else {
+			printk(KERN_ERR "rd88f5182_pci_preinit faield to "
+					"set_irq_type pin %d\n", pin);
+			gpio_free(pin);
+		}
+	} else {
+		printk(KERN_ERR "rd88f5182_pci_preinit failed to gpio_request %d\n", pin);
+	}
+}
+
+static int __init rd88f5182_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	/*
+	 * PCI-E isn't used on the RD2
+	 */
+	if (dev->bus->number == orion_pcie_local_bus_nr())
+		return IRQ_ORION_PCIE0_INT;
+
+	/*
+	 * PCI IRQs are connected via GPIOs
+	 */
+	switch (slot - RD88F5182_PCI_SLOT0_OFFS) {
+	case 0:
+		if (pin == 1)
+			return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_A_PIN);
+		else
+			return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_B_PIN);
+	default:
+		return -1;
+	}
+}
+
+static struct hw_pci rd88f5182_pci __initdata = {
+	.nr_controllers	= 2,
+	.preinit	= rd88f5182_pci_preinit,
+	.swizzle	= pci_std_swizzle,
+	.setup		= orion_pci_sys_setup,
+	.scan		= orion_pci_sys_scan_bus,
+	.map_irq	= rd88f5182_pci_map_irq,
+};
+
+static int __init rd88f5182_pci_init(void)
+{
+	if (machine_is_rd88f5182())
+		pci_common_init(&rd88f5182_pci);
+
+	return 0;
+}
+
+subsys_initcall(rd88f5182_pci_init);
+
+/*****************************************************************************
+ * Ethernet
+ ****************************************************************************/
+
+static struct mv643xx_eth_platform_data rd88f5182_eth_data = {
+	.phy_addr	= 8,
+	.force_phy_addr = 1,
+};
+
+/*****************************************************************************
+ * RTC DS1338 on I2C bus
+ ****************************************************************************/
+static struct i2c_board_info __initdata rd88f5182_i2c_rtc = {
+	.driver_name	= "rtc-ds1307",
+	.type		= "ds1338",
+	.addr		= 0x68,
+};
+
+/*****************************************************************************
+ * General Setup
+ ****************************************************************************/
+
+static struct platform_device *rd88f5182_devices[] __initdata = {
+	&rd88f5182_nor_flash,
+};
+
+static void __init rd88f5182_init(void)
+{
+	/*
+	 * Setup basic Orion functions. Need to be called early.
+	 */
+	orion_init();
+
+	/*
+	 * Setup the CPU address decode windows for our devices
+	 */
+	orion_setup_cpu_win(ORION_DEV_BOOT, RD88F5182_NOR_BOOT_BASE,
+				RD88F5182_NOR_BOOT_SIZE, -1);
+	orion_setup_cpu_win(ORION_DEV1, RD88F5182_NOR_BASE,
+				RD88F5182_NOR_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] Debug Led (GPIO - Out)
+	 * MPP[1] Debug Led (GPIO - Out)
+	 * MPP[2] N/A
+	 * MPP[3] RTC_Int (GPIO - In)
+	 * MPP[4] GPIO
+	 * MPP[5] GPIO
+	 * MPP[6] PCI_intA (GPIO - In)
+	 * MPP[7] PCI_intB (GPIO - In)
+	 * MPP[8-11] N/A
+	 * MPP[12] SATA 0 presence Indication
+	 * MPP[13] SATA 1 presence Indication
+	 * MPP[14] SATA 0 active Indication
+	 * MPP[15] SATA 1 active indication
+	 * MPP[16-19] Not used
+	 * MPP[20] PCI Clock to MV88F5182
+	 * MPP[21] PCI Clock to mini PCI CON11
+	 * MPP[22] USB 0 over current indication
+	 * MPP[23] USB 1 over current indication
+	 * MPP[24] USB 1 over current enable
+	 * MPP[25] USB 0 over current enable
+	 */
+
+	orion_write(MPP_0_7_CTRL, 0x00000003);
+	orion_write(MPP_8_15_CTRL, 0x55550000);
+	orion_write(MPP_16_19_CTRL, 0x5555);
+
+	orion_gpio_set_valid_pins(0x000000fb);
+
+	platform_add_devices(rd88f5182_devices, ARRAY_SIZE(rd88f5182_devices));
+	i2c_register_board_info(0, &rd88f5182_i2c_rtc, 1);
+	orion_eth_init(&rd88f5182_eth_data);
+}
+
+MACHINE_START(RD88F5182, "Marvell Orion-NAS Reference Design")
+	/* Maintainer: Ronen Shitrit <rshitrit@marvell.com> */
+	.phys_io	= ORION_REGS_BASE,
+	.io_pg_offst	= ((ORION_REGS_BASE) >> 18) & 0xFFFC,
+	.boot_params	= 0x00000100,
+	.init_machine	= rd88f5182_init,
+	.map_io		= orion_map_io,
+	.init_irq	= orion_init_irq,
+	.timer		= &orion_timer,
+MACHINE_END