summaryrefslogtreecommitdiffstats
path: root/kernel/arch/arm/mach-orion5x/db88f5281-setup.c
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/arch/arm/mach-orion5x/db88f5281-setup.c')
-rw-r--r--kernel/arch/arm/mach-orion5x/db88f5281-setup.c378
1 files changed, 378 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-orion5x/db88f5281-setup.c b/kernel/arch/arm/mach-orion5x/db88f5281-setup.c
new file mode 100644
index 000000000..dc01c4ffc
--- /dev/null
+++ b/kernel/arch/arm/mach-orion5x/db88f5281-setup.c
@@ -0,0 +1,378 @@
+/*
+ * arch/arm/mach-orion5x/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/gpio.h>
+#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/mach/arch.h>
+#include <asm/mach/pci.h>
+#include <mach/orion5x.h>
+#include <linux/platform_data/mtd-orion_nand.h>
+#include "common.h"
+#include "mpp.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
+ ****************************************************************************/
+
+static 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) {
+ irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
+ } else {
+ printk(KERN_ERR "db88f5281_pci_preinit failed 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) {
+ irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
+ } else {
+ printk(KERN_ERR "db88f5281_pci_preinit failed "
+ "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(const 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 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,
+ .setup = orion5x_pci_sys_setup,
+ .scan = orion5x_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 = MV643XX_ETH_PHY_ADDR(8),
+};
+
+/*****************************************************************************
+ * RTC DS1339 on I2C bus
+ ****************************************************************************/
+static struct i2c_board_info __initdata db88f5281_i2c_rtc = {
+ I2C_BOARD_INFO("ds1339", 0x68),
+};
+
+/*****************************************************************************
+ * General Setup
+ ****************************************************************************/
+static unsigned int db88f5281_mpp_modes[] __initdata = {
+ MPP0_GPIO, /* USB Over Current */
+ MPP1_GPIO, /* USB Vbat input */
+ MPP2_PCI_ARB, /* PCI_REQn[2] */
+ MPP3_PCI_ARB, /* PCI_GNTn[2] */
+ MPP4_PCI_ARB, /* PCI_REQn[3] */
+ MPP5_PCI_ARB, /* 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, /* NAND_REn[2] */
+ MPP15_NAND, /* NAND_WEn[2] */
+ MPP16_UART, /* UART1_RX */
+ MPP17_UART, /* UART1_TX */
+ MPP18_UART, /* UART1_CTSn */
+ MPP19_UART, /* UART1_RTSn */
+ 0,
+};
+
+static void __init db88f5281_init(void)
+{
+ /*
+ * Basic Orion setup. Need to be called early.
+ */
+ orion5x_init();
+
+ orion5x_mpp_conf(db88f5281_mpp_modes);
+ writel(0, MPP_DEV_CTRL); /* DEV_D[31:16] */
+
+ /*
+ * Configure peripherals.
+ */
+ orion5x_ehci0_init();
+ orion5x_eth_init(&db88f5281_eth_data);
+ orion5x_i2c_init();
+ orion5x_uart0_init();
+ orion5x_uart1_init();
+
+ mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
+ ORION_MBUS_DEVBUS_BOOT_ATTR,
+ DB88F5281_NOR_BOOT_BASE,
+ DB88F5281_NOR_BOOT_SIZE);
+ platform_device_register(&db88f5281_boot_flash);
+
+ mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_TARGET(0),
+ ORION_MBUS_DEVBUS_ATTR(0),
+ DB88F5281_7SEG_BASE,
+ DB88F5281_7SEG_SIZE);
+
+ mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_TARGET(1),
+ ORION_MBUS_DEVBUS_ATTR(1),
+ DB88F5281_NOR_BASE,
+ DB88F5281_NOR_SIZE);
+ platform_device_register(&db88f5281_nor_flash);
+
+ mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_TARGET(2),
+ ORION_MBUS_DEVBUS_ATTR(2),
+ DB88F5281_NAND_BASE,
+ DB88F5281_NAND_SIZE);
+ platform_device_register(&db88f5281_nand_flash);
+
+ i2c_register_board_info(0, &db88f5281_i2c_rtc, 1);
+}
+
+MACHINE_START(DB88F5281, "Marvell Orion-2 Development Board")
+ /* Maintainer: Tzachi Perelstein <tzachi@marvell.com> */
+ .atag_offset = 0x100,
+ .init_machine = db88f5281_init,
+ .map_io = orion5x_map_io,
+ .init_early = orion5x_init_early,
+ .init_irq = orion5x_init_irq,
+ .init_time = orion5x_timer_init,
+ .restart = orion5x_restart,
+MACHINE_END