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kernel-fxtec-pro1x/arch/arm/mach-orion5x/ts209-setup.c
Lennert Buytenhek 19cfd5c09f [ARM] Orion: rework MPP handling 
Instead of having board code poke directly into the MPP configuration
registers, and separately calling orion5x_gpio_set_valid_pins() to
indicate which MPP pins can be used as GPIO pins, introduce a helper
function for configuring the roles of each of the MPP pins, and have
that helper function handle gpio validity internally.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Sylver Bruneau <sylver.bruneau@googlemail.com>
Acked-by: Russell King <linux@arm.linux.org.uk>
2008-06-22 22:44:47 +02:00

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/*
* QNAP TS-109/TS-209 Board Setup
*
* Maintainer: Byron Bradley <byron.bbradley@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#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/mv643xx_eth.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/i2c.h>
#include <linux/serial_reg.h>
#include <linux/ata_platform.h>
#include <asm/mach-types.h>
#include <asm/gpio.h>
#include <asm/mach/arch.h>
#include <asm/mach/pci.h>
#include <asm/arch/orion5x.h>
#include "common.h"
#include "mpp.h"
#define QNAP_TS209_NOR_BOOT_BASE 0xf4000000
#define QNAP_TS209_NOR_BOOT_SIZE SZ_8M
/****************************************************************************
* 8MiB NOR flash. The struct mtd_partition is not in the same order as the
* partitions on the device because we want to keep compatability with
* existing QNAP firmware.
*
* Layout as used by QNAP:
* [2] 0x00000000-0x00200000 : "Kernel"
* [3] 0x00200000-0x00600000 : "RootFS1"
* [4] 0x00600000-0x00700000 : "RootFS2"
* [6] 0x00700000-0x00760000 : "NAS Config" (read-only)
* [5] 0x00760000-0x00780000 : "U-Boot Config"
* [1] 0x00780000-0x00800000 : "U-Boot" (read-only)
***************************************************************************/
static struct mtd_partition qnap_ts209_partitions[] = {
{
.name = "U-Boot",
.size = 0x00080000,
.offset = 0x00780000,
.mask_flags = MTD_WRITEABLE,
}, {
.name = "Kernel",
.size = 0x00200000,
.offset = 0,
}, {
.name = "RootFS1",
.size = 0x00400000,
.offset = 0x00200000,
}, {
.name = "RootFS2",
.size = 0x00100000,
.offset = 0x00600000,
}, {
.name = "U-Boot Config",
.size = 0x00020000,
.offset = 0x00760000,
}, {
.name = "NAS Config",
.size = 0x00060000,
.offset = 0x00700000,
.mask_flags = MTD_WRITEABLE,
},
};
static struct physmap_flash_data qnap_ts209_nor_flash_data = {
.width = 1,
.parts = qnap_ts209_partitions,
.nr_parts = ARRAY_SIZE(qnap_ts209_partitions)
};
static struct resource qnap_ts209_nor_flash_resource = {
.flags = IORESOURCE_MEM,
.start = QNAP_TS209_NOR_BOOT_BASE,
.end = QNAP_TS209_NOR_BOOT_BASE + QNAP_TS209_NOR_BOOT_SIZE - 1,
};
static struct platform_device qnap_ts209_nor_flash = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &qnap_ts209_nor_flash_data,
},
.resource = &qnap_ts209_nor_flash_resource,
.num_resources = 1,
};
/*****************************************************************************
* PCI
****************************************************************************/
#define QNAP_TS209_PCI_SLOT0_OFFS 7
#define QNAP_TS209_PCI_SLOT0_IRQ_PIN 6
#define QNAP_TS209_PCI_SLOT1_IRQ_PIN 7
void __init qnap_ts209_pci_preinit(void)
{
int pin;
/*
* Configure PCI GPIO IRQ pins
*/
pin = QNAP_TS209_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 "qnap_ts209_pci_preinit failed to "
"set_irq_type pin %d\n", pin);
gpio_free(pin);
}
} else {
printk(KERN_ERR "qnap_ts209_pci_preinit failed to gpio_request "
"%d\n", pin);
}
pin = QNAP_TS209_PCI_SLOT1_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 "qnap_ts209_pci_preinit failed "
"to set_irq_type pin %d\n", pin);
gpio_free(pin);
}
} else {
printk(KERN_ERR "qnap_ts209_pci_preinit failed to gpio_request "
"%d\n", pin);
}
}
static int __init qnap_ts209_pci_map_irq(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 - QNAP_TS209_PCI_SLOT0_OFFS) {
case 0:
return gpio_to_irq(QNAP_TS209_PCI_SLOT0_IRQ_PIN);
case 1:
return gpio_to_irq(QNAP_TS209_PCI_SLOT1_IRQ_PIN);
default:
return -1;
}
}
static struct hw_pci qnap_ts209_pci __initdata = {
.nr_controllers = 2,
.preinit = qnap_ts209_pci_preinit,
.swizzle = pci_std_swizzle,
.setup = orion5x_pci_sys_setup,
.scan = orion5x_pci_sys_scan_bus,
.map_irq = qnap_ts209_pci_map_irq,
};
static int __init qnap_ts209_pci_init(void)
{
if (machine_is_ts_x09())
pci_common_init(&qnap_ts209_pci);
return 0;
}
subsys_initcall(qnap_ts209_pci_init);
/*****************************************************************************
* Ethernet
****************************************************************************/
static struct mv643xx_eth_platform_data qnap_ts209_eth_data = {
.phy_addr = 8,
.force_phy_addr = 1,
};
static int __init parse_hex_nibble(char n)
{
if (n >= '0' && n <= '9')
return n - '0';
if (n >= 'A' && n <= 'F')
return n - 'A' + 10;
if (n >= 'a' && n <= 'f')
return n - 'a' + 10;
return -1;
}
static int __init parse_hex_byte(const char *b)
{
int hi;
int lo;
hi = parse_hex_nibble(b[0]);
lo = parse_hex_nibble(b[1]);
if (hi < 0 || lo < 0)
return -1;
return (hi << 4) | lo;
}
static int __init check_mac_addr(const char *addr_str)
{
u_int8_t addr[6];
int i;
for (i = 0; i < 6; i++) {
int byte;
/*
* Enforce "xx:xx:xx:xx:xx:xx\n" format.
*/
if (addr_str[(i * 3) + 2] != ((i < 5) ? ':' : '\n'))
return -1;
byte = parse_hex_byte(addr_str + (i * 3));
if (byte < 0)
return -1;
addr[i] = byte;
}
printk(KERN_INFO "ts209: found ethernet mac address ");
for (i = 0; i < 6; i++)
printk("%.2x%s", addr[i], (i < 5) ? ":" : ".\n");
memcpy(qnap_ts209_eth_data.mac_addr, addr, 6);
return 0;
}
/*
* The 'NAS Config' flash partition has an ext2 filesystem which
* contains a file that has the ethernet MAC address in plain text
* (format "xx:xx:xx:xx:xx:xx\n".)
*/
static void __init ts209_find_mac_addr(void)
{
unsigned long addr;
for (addr = 0x00700000; addr < 0x00760000; addr += 1024) {
char *nor_page;
int ret = 0;
nor_page = ioremap(QNAP_TS209_NOR_BOOT_BASE + addr, 1024);
if (nor_page != NULL) {
ret = check_mac_addr(nor_page);
iounmap(nor_page);
}
if (ret == 0)
break;
}
}
/*****************************************************************************
* RTC S35390A on I2C bus
****************************************************************************/
#define TS209_RTC_GPIO 3
static struct i2c_board_info __initdata qnap_ts209_i2c_rtc = {
I2C_BOARD_INFO("s35390a", 0x30),
.irq = 0,
};
/****************************************************************************
* GPIO Attached Keys
* Power button is attached to the PIC microcontroller
****************************************************************************/
#define QNAP_TS209_GPIO_KEY_MEDIA 1
#define QNAP_TS209_GPIO_KEY_RESET 2
static struct gpio_keys_button qnap_ts209_buttons[] = {
{
.code = KEY_RESTART,
.gpio = QNAP_TS209_GPIO_KEY_MEDIA,
.desc = "USB Copy Button",
.active_low = 1,
}, {
.code = KEY_POWER,
.gpio = QNAP_TS209_GPIO_KEY_RESET,
.desc = "Reset Button",
.active_low = 1,
},
};
static struct gpio_keys_platform_data qnap_ts209_button_data = {
.buttons = qnap_ts209_buttons,
.nbuttons = ARRAY_SIZE(qnap_ts209_buttons),
};
static struct platform_device qnap_ts209_button_device = {
.name = "gpio-keys",
.id = -1,
.num_resources = 0,
.dev = {
.platform_data = &qnap_ts209_button_data,
},
};
/*****************************************************************************
* SATA
****************************************************************************/
static struct mv_sata_platform_data qnap_ts209_sata_data = {
.n_ports = 2,
};
/*****************************************************************************
* General Setup
****************************************************************************/
static struct orion5x_mpp_mode ts209_mpp_modes[] __initdata = {
{ 0, MPP_UNUSED },
{ 1, MPP_GPIO }, /* USB copy button */
{ 2, MPP_GPIO }, /* Load defaults button */
{ 3, MPP_GPIO }, /* GPIO RTC */
{ 4, MPP_UNUSED },
{ 5, MPP_UNUSED },
{ 6, MPP_GPIO }, /* PCI Int A */
{ 7, MPP_GPIO }, /* PCI Int B */
{ 8, MPP_UNUSED },
{ 9, MPP_UNUSED },
{ 10, MPP_UNUSED },
{ 11, MPP_UNUSED },
{ 12, MPP_SATA_LED }, /* SATA 0 presence */
{ 13, MPP_SATA_LED }, /* SATA 1 presence */
{ 14, MPP_SATA_LED }, /* SATA 0 active */
{ 15, MPP_SATA_LED }, /* SATA 1 active */
{ 16, MPP_UART }, /* UART1 RXD */
{ 17, MPP_UART }, /* UART1 TXD */
{ 18, MPP_GPIO }, /* SW_RST */
{ 19, MPP_UNUSED },
{ -1 },
};
/*
* QNAP TS-[12]09 specific power off method via UART1-attached PIC
*/
#define UART1_REG(x) (UART1_VIRT_BASE + ((UART_##x) << 2))
static void qnap_ts209_power_off(void)
{
/* 19200 baud divisor */
const unsigned divisor = ((ORION5X_TCLK + (8 * 19200)) / (16 * 19200));
pr_info("%s: triggering power-off...\n", __func__);
/* hijack uart1 and reset into sane state (19200,8n1) */
orion5x_write(UART1_REG(LCR), 0x83);
orion5x_write(UART1_REG(DLL), divisor & 0xff);
orion5x_write(UART1_REG(DLM), (divisor >> 8) & 0xff);
orion5x_write(UART1_REG(LCR), 0x03);
orion5x_write(UART1_REG(IER), 0x00);
orion5x_write(UART1_REG(FCR), 0x00);
orion5x_write(UART1_REG(MCR), 0x00);
/* send the power-off command 'A' to PIC */
orion5x_write(UART1_REG(TX), 'A');
}
static void __init qnap_ts209_init(void)
{
/*
* Setup basic Orion functions. Need to be called early.
*/
orion5x_init();
orion5x_mpp_conf(ts209_mpp_modes);
/*
* MPP[20] PCI clock 0
* MPP[21] PCI clock 1
* MPP[22] USB 0 over current
* MPP[23-25] Reserved
*/
/*
* Configure peripherals.
*/
orion5x_ehci0_init();
orion5x_ehci1_init();
ts209_find_mac_addr();
orion5x_eth_init(&qnap_ts209_eth_data);
orion5x_i2c_init();
orion5x_sata_init(&qnap_ts209_sata_data);
orion5x_uart0_init();
orion5x_setup_dev_boot_win(QNAP_TS209_NOR_BOOT_BASE,
QNAP_TS209_NOR_BOOT_SIZE);
platform_device_register(&qnap_ts209_nor_flash);
platform_device_register(&qnap_ts209_button_device);
/* Get RTC IRQ and register the chip */
if (gpio_request(TS209_RTC_GPIO, "rtc") == 0) {
if (gpio_direction_input(TS209_RTC_GPIO) == 0)
qnap_ts209_i2c_rtc.irq = gpio_to_irq(TS209_RTC_GPIO);
else
gpio_free(TS209_RTC_GPIO);
}
if (qnap_ts209_i2c_rtc.irq == 0)
pr_warning("qnap_ts209_init: failed to get RTC IRQ\n");
i2c_register_board_info(0, &qnap_ts209_i2c_rtc, 1);
/* register ts209 specific power-off method */
pm_power_off = qnap_ts209_power_off;
}
MACHINE_START(TS209, "QNAP TS-109/TS-209")
/* Maintainer: Byron Bradley <byron.bbradley@gmail.com> */
.phys_io = ORION5X_REGS_PHYS_BASE,
.io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
.boot_params = 0x00000100,
.init_machine = qnap_ts209_init,
.map_io = orion5x_map_io,
.init_irq = orion5x_init_irq,
.timer = &orion5x_timer,
.fixup = tag_fixup_mem32,
MACHINE_END
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