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linux-sg2042/arch/arm/mach-orion/db88f5281-setup.c

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/*
* 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_PHYS_BASE,
.io_pg_offst = ((ORION_REGS_VIRT_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
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