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linux/arch/arm/mach-orion/rd88f5182-setup.c
Lennert Buytenhek 98f79d1ea0 Orion: revamp cpu mbus window handling 
Instead of forcing all device bus window setup through one function
with some enum as the first argument, create separate window setup
functions for each of the four possible targets, and do the demux
internally.  This allows getting rid of the window identifier enum
and the big switch statement in orion_setup_cpu_win().

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Reviewed-by: Tzachi Perelstein <tzachi@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2008-03-27 14:51:40 -04:00

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/*
* 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/ata_platform.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 "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,
};
/*****************************************************************************
* Sata
****************************************************************************/
static struct mv_sata_platform_data rd88f5182_sata_data = {
.n_ports = 2,
};
/*****************************************************************************
* 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_dev_boot_win(RD88F5182_NOR_BOOT_BASE,
RD88F5182_NOR_BOOT_SIZE);
orion_setup_dev1_win(RD88F5182_NOR_BASE, RD88F5182_NOR_SIZE);
/*
* Open a special address decode windows for the PCIE WA.
*/
orion_setup_pcie_wa_win(ORION_PCIE_WA_PHYS_BASE, ORION_PCIE_WA_SIZE);
/*
* 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);
orion_sata_init(&rd88f5182_sata_data);
}
MACHINE_START(RD88F5182, "Marvell Orion-NAS Reference Design")
/* Maintainer: Ronen Shitrit <rshitrit@marvell.com> */
.phys_io = ORION_REGS_PHYS_BASE,
.io_pg_offst = ((ORION_REGS_VIRT_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
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