[ARM] Orion: support for Marvell Orion-2 (88F5281) Development Board

Signed-off-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>

arch/arm/mach-orion/Kconfig

@@ -2,6 +2,13 @@ if ARCH_ORION
 
 menu "Orion Implementations"
 
+config MACH_DB88F5281
+	bool "Marvell Orion-2 Development Board"
+	select I2C_BOARDINFO
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  Marvell Orion-2 (88F5281) Development Board
+
 endmenu
 
 endif

arch/arm/mach-orion/Makefile

-obj-y  += common.o addr-map.o pci.o gpio.o irq.o time.o
+obj-y				+= common.o addr-map.o pci.o gpio.o irq.o time.o
+obj-$(CONFIG_MACH_DB88F5281)	+= db88f5281-setup.o

arch/arm/mach-orion/db88f5281-setup.c

+/*
+ * arch/arm/mach-orion/db88f5281-setup.c
+ *
+ * Marvell Orion-2 Development Board Setup
+ *
+ * Maintainer: Tzachi Perelstein <tzachi@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/mtd/nand.h>
+#include <linux/timer.h>
+#include <linux/mv643xx_eth.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"
+
+/*****************************************************************************
+ * DB-88F5281 on board devices
+ ****************************************************************************/
+
+/*
+ * 512K NOR flash Device bus boot chip select
+ */
+
+#define DB88F5281_NOR_BOOT_BASE		0xf4000000
+#define DB88F5281_NOR_BOOT_SIZE		SZ_512K
+
+/*
+ * 7-Segment on Device bus chip select 0
+ */
+
+#define DB88F5281_7SEG_BASE		0xfa000000
+#define DB88F5281_7SEG_SIZE		SZ_1K
+
+/*
+ * 32M NOR flash on Device bus chip select 1
+ */
+
+#define DB88F5281_NOR_BASE		0xfc000000
+#define DB88F5281_NOR_SIZE		SZ_32M
+
+/*
+ * 32M NAND flash on Device bus chip select 2
+ */
+
+#define DB88F5281_NAND_BASE		0xfa800000
+#define DB88F5281_NAND_SIZE		SZ_1K
+
+/*
+ * PCI
+ */
+
+#define DB88F5281_PCI_SLOT0_OFFS		7
+#define DB88F5281_PCI_SLOT0_IRQ_PIN		12
+#define DB88F5281_PCI_SLOT1_SLOT2_IRQ_PIN	13
+
+/*****************************************************************************
+ * 512M NOR Flash on Device bus Boot CS
+ ****************************************************************************/
+
+static struct physmap_flash_data db88f5281_boot_flash_data = {
+	.width		= 1,	/* 8 bit bus width */
+};
+
+static struct resource db88f5281_boot_flash_resource = {
+	.flags		= IORESOURCE_MEM,
+	.start		= DB88F5281_NOR_BOOT_BASE,
+	.end		= DB88F5281_NOR_BOOT_BASE + DB88F5281_NOR_BOOT_SIZE - 1,
+};
+
+static struct platform_device db88f5281_boot_flash = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data = &db88f5281_boot_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &db88f5281_boot_flash_resource,
+};
+
+/*****************************************************************************
+ * 32M NOR Flash on Device bus CS1
+ ****************************************************************************/
+
+static struct physmap_flash_data db88f5281_nor_flash_data = {
+	.width		= 4,	/* 32 bit bus width */
+};
+
+static struct resource db88f5281_nor_flash_resource = {
+	.flags		= IORESOURCE_MEM,
+	.start		= DB88F5281_NOR_BASE,
+	.end		= DB88F5281_NOR_BASE + DB88F5281_NOR_SIZE - 1,
+};
+
+static struct platform_device db88f5281_nor_flash = {
+	.name		= "physmap-flash",
+	.id		= 1,
+	.dev		= {
+		.platform_data = &db88f5281_nor_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &db88f5281_nor_flash_resource,
+};
+
+/*****************************************************************************
+ * 32M NAND Flash on Device bus CS2
+ ****************************************************************************/
+
+static struct mtd_partition db88f5281_nand_parts[] = {
+	{
+		.name = "kernel",
+		.offset = 0,
+		.size = SZ_2M,
+	},
+	{
+		.name = "root",
+		.offset = SZ_2M,
+		.size = (SZ_16M - SZ_2M),
+	},
+	{
+		.name = "user",
+		.offset = SZ_16M,
+		.size = SZ_8M,
+	},
+	{
+		.name = "recovery",
+		.offset = (SZ_16M + SZ_8M),
+		.size = SZ_8M,
+	},
+};
+
+static struct resource db88f5281_nand_resource = {
+	.flags		= IORESOURCE_MEM,
+	.start		= DB88F5281_NAND_BASE,
+	.end		= DB88F5281_NAND_BASE + DB88F5281_NAND_SIZE - 1,
+};
+
+static struct orion_nand_data db88f5281_nand_data = {
+	.parts		= db88f5281_nand_parts,
+	.nr_parts	= ARRAY_SIZE(db88f5281_nand_parts),
+	.cle		= 0,
+	.ale		= 1,
+	.width		= 8,
+};
+
+static struct platform_device db88f5281_nand_flash = {
+	.name		= "orion_nand",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= &db88f5281_nand_data,
+	},
+	.resource	= &db88f5281_nand_resource,
+	.num_resources	= 1,
+};
+
+/*****************************************************************************
+ * 7-Segment on Device bus CS0
+ * Dummy counter every 2 sec
+ ****************************************************************************/
+
+static void __iomem *db88f5281_7seg;
+static struct timer_list db88f5281_timer;
+
+static void db88f5281_7seg_event(unsigned long data)
+{
+	static int count = 0;
+	writel(0, db88f5281_7seg + (count << 4));
+	count = (count + 1) & 7;
+	mod_timer(&db88f5281_timer, jiffies + 2 * HZ);
+}
+
+static int __init db88f5281_7seg_init(void)
+{
+	if (machine_is_db88f5281()) {
+		db88f5281_7seg = ioremap(DB88F5281_7SEG_BASE,
+					DB88F5281_7SEG_SIZE);
+		if (!db88f5281_7seg) {
+			printk(KERN_ERR "Failed to ioremap db88f5281_7seg\n");
+			return -EIO;
+		}
+		setup_timer(&db88f5281_timer, db88f5281_7seg_event, 0);
+		mod_timer(&db88f5281_timer, jiffies + 2 * HZ);
+	}
+
+	return 0;
+}
+
+__initcall(db88f5281_7seg_init);
+
+/*****************************************************************************
+ * PCI
+ ****************************************************************************/
+
+void __init db88f5281_pci_preinit(void)
+{
+	int pin;
+
+	/*
+	 * Configure PCI GPIO IRQ pins
+	 */
+	pin = DB88F5281_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 "db88f5281_pci_preinit faield to "
+					"set_irq_type pin %d\n", pin);
+			gpio_free(pin);
+		}
+	} else {
+		printk(KERN_ERR "db88f5281_pci_preinit failed to gpio_request %d\n", pin);
+	}
+
+	pin = DB88F5281_PCI_SLOT1_SLOT2_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 "db88f5281_pci_preinit faield "
+					"to set_irq_type pin %d\n", pin);
+			gpio_free(pin);
+		}
+	} else {
+		printk(KERN_ERR "db88f5281_pci_preinit failed to gpio_request %d\n", pin);
+	}
+}
+
+static int __init db88f5281_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 - DB88F5281_PCI_SLOT0_OFFS) {
+	case 0:
+		return gpio_to_irq(DB88F5281_PCI_SLOT0_IRQ_PIN);
+	case 1:
+	case 2:
+		return gpio_to_irq(DB88F5281_PCI_SLOT1_SLOT2_IRQ_PIN);
+	default:
+		return -1;
+	}
+}
+
+static struct hw_pci db88f5281_pci __initdata = {
+	.nr_controllers	= 2,
+	.preinit	= db88f5281_pci_preinit,
+	.swizzle	= pci_std_swizzle,
+	.setup		= orion_pci_sys_setup,
+	.scan		= orion_pci_sys_scan_bus,
+	.map_irq	= db88f5281_pci_map_irq,
+};
+
+static int __init db88f5281_pci_init(void)
+{
+	if (machine_is_db88f5281())
+		pci_common_init(&db88f5281_pci);
+
+	return 0;
+}
+
+subsys_initcall(db88f5281_pci_init);
+
+/*****************************************************************************
+ * Ethernet
+ ****************************************************************************/
+static struct mv643xx_eth_platform_data db88f5281_eth_data = {
+	.phy_addr	= 8,
+	.force_phy_addr = 1,
+};
+
+/*****************************************************************************
+ * RTC DS1339 on I2C bus
+ ****************************************************************************/
+static struct i2c_board_info __initdata db88f5281_i2c_rtc = {
+	.driver_name	= "rtc-ds1307",
+	.type		= "ds1339",
+	.addr		= 0x68,
+};
+
+/*****************************************************************************
+ * General Setup
+ ****************************************************************************/
+
+static struct platform_device *db88f5281_devs[] __initdata = {
+	&db88f5281_boot_flash,
+	&db88f5281_nor_flash,
+	&db88f5281_nand_flash,
+};
+
+static void __init db88f5281_init(void)
+{
+	/*
+	 * Basic Orion setup. Need to be called early.
+	 */
+	orion_init();
+
+	/*
+	 * Setup the CPU address decode windows for our on-board devices
+	 */
+	orion_setup_cpu_win(ORION_DEV_BOOT, DB88F5281_NOR_BOOT_BASE,
+				DB88F5281_NOR_BOOT_SIZE, -1);
+	orion_setup_cpu_win(ORION_DEV0,	DB88F5281_7SEG_BASE,
+				DB88F5281_7SEG_SIZE, -1);
+	orion_setup_cpu_win(ORION_DEV1, DB88F5281_NOR_BASE,
+				DB88F5281_NOR_SIZE, -1);
+	orion_setup_cpu_win(ORION_DEV2,	DB88F5281_NAND_BASE,
+				DB88F5281_NAND_SIZE, -1);
+
+	/*
+	 * Setup Multiplexing Pins:
+	 * MPP0: GPIO (USB Over Current)	MPP1: GPIO (USB Vbat input)
+	 * MPP2: PCI_REQn[2]			MPP3: PCI_GNTn[2]
+	 * MPP4: PCI_REQn[3]			MPP5: PCI_GNTn[3]
+	 * MPP6: GPIO (JP0, CON17.2)		MPP7: GPIO (JP1, CON17.1)
+	 * MPP8: GPIO (JP2, CON11.2)		MPP9: GPIO (JP3, CON11.3)
+	 * MPP10: GPIO (RTC int)		MPP11: GPIO (Baud Rate Generator)
+	 * MPP12: GPIO (PCI int 1)		MPP13: GPIO (PCI int 2)
+	 * MPP14: NAND_REn[2]			MPP15: NAND_WEn[2]
+	 * MPP16: UART1_RX			MPP17: UART1_TX
+	 * MPP18: UART1_CTS			MPP19: UART1_RTS
+	 * MPP-DEV: DEV_D[16:31]
+	 */
+	orion_write(MPP_0_7_CTRL, 0x00222203);
+	orion_write(MPP_8_15_CTRL, 0x44000000);
+	orion_write(MPP_16_19_CTRL, 0);
+	orion_write(MPP_DEV_CTRL, 0);
+
+	orion_gpio_set_valid_pins(0x00003fc3);
+
+	platform_add_devices(db88f5281_devs, ARRAY_SIZE(db88f5281_devs));
+	i2c_register_board_info(0, &db88f5281_i2c_rtc, 1);
+	orion_eth_init(&db88f5281_eth_data);
+}
+
+MACHINE_START(DB88F5281, "Marvell Orion-2 Development Board")
+	/* Maintainer: Tzachi Perelstein <tzachi@marvell.com> */
+	.phys_io	= ORION_REGS_BASE,
+	.io_pg_offst	= ((ORION_REGS_BASE) >> 18) & 0xfffc,
+	.boot_params	= 0x00000100,
+	.init_machine	= db88f5281_init,
+	.map_io		= orion_map_io,
+	.init_irq	= orion_init_irq,
+	.timer		= &orion_timer,
+MACHINE_END