/*
* arch/sh/boards/st/mb680/setup.c
*
* Copyright (C) 2008 STMicroelectronics Limited
* Author: Stuart Menefy (stuart.menefy@st.com)
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*
* STMicroelectronics STx7105 Mboard support.
*/
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/phy.h>
#include <linux/leds.h>
#include <linux/lirc.h>
#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/stm/platform.h>
#include <linux/stm/stx7105.h>
#include <linux/stm/pci-glue.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/partitions.h>
#include <linux/spi/spi_gpio.h>
#include <asm/irq-ilc.h>
#include <mach/common.h>
#include "../mach-st/mb705-epld.h"
#define MB680_PIO_PHY_RESET stm_gpio(5, 5)
#define MB680_PIO_PCI_SERR stm_gpio(6, 4)
#define MB680_PIO_PCI_RESET stm_gpio(15, 6)
#define MB680_PIO_MII_BUS_SWITCH stm_gpio(11, 2)
static void __init mb680_setup(char** cmdline_p)
{
printk(KERN_INFO "STMicroelectronics STx7105 Mboard initialisation\n");
stx7105_early_device_init();
stx7105_configure_asc(2, &(struct stx7105_asc_config) {
.routing.asc2 = stx7105_asc2_pio4,
.hw_flow_control = 1,
.is_console = 1, });
stx7105_configure_asc(3, &(struct stx7105_asc_config) {
.hw_flow_control = 1,
.is_console = 0, });
}
static struct platform_device mb680_leds = {
.name = "leds-gpio",
.id = 0,
.dev.platform_data = &(struct gpio_led_platform_data) {
.num_leds = 2,
.leds = (struct gpio_led[]) {
{
.name = "LD5",
.default_trigger = "heartbeat",
.gpio = stm_gpio(2, 4),
}, {
.name = "LD6",
.gpio = stm_gpio(2, 3),
},
},
},
};
/*
* mb680 rev C added software control of the PHY reset, and buffers which
* allow isolation of the MII pins so that their use as MODE pins is not
* compromised by the PHY.
*/
/*
* When connected to the mb705, MII reset is controlled by an EPLD register
* on the mb705.
* When used standalone a PIO pin is used, and J47-C must be fitted.
*
* Timings:
* PHY | Reset low | Post reset stabilisation
* ------------+-----------+-------------------------
* DB83865 | 150uS | 20mS
* LAN8700 | 100uS | 800nS
*/
#ifdef CONFIG_SH_ST_MB705
static void ll_phy_reset(void)
{
mb705_reset(EPLD_EMI_RESET_SW0, 150);
}
#else
static void ll_phy_reset(void)
{
gpio_set_value(MB680_PIO_PHY_RESET, 0);
udelay(150);
gpio_set_value(MB680_PIO_PHY_RESET, 1);
}
#endif
static int mb680_phy_reset(void *bus)
{
gpio_set_value(MB680_PIO_MII_BUS_SWITCH, 1);
ll_phy_reset();
gpio_set_value(MB680_PIO_MII_BUS_SWITCH, 0);
mdelay(20);
return 0;
}
static struct stmmac_mdio_bus_data stmmac_mdio_bus = {
.bus_id = 0,
.phy_reset = mb680_phy_reset,
.phy_mask = 0,
};
static struct platform_device *mb680_devices[] __initdata = {
&mb680_leds,
};
/* PCI configuration */
#ifdef CONFIG_SH_ST_MB705
static void mb705_epld_pci_reset(void)
{
mb705_reset(EPLD_EMI_RESET_SW1, 1000);
/* PCI spec says one second */
mdelay(10);
}
#endif
/*
* J22-A must be removed, J22-B must be 2-3.
*/
static struct stm_plat_pci_config mb680_pci_config = {
.pci_irq = {
[0] = PCI_PIN_DEFAULT,
[1] = PCI_PIN_DEFAULT,
[2] = PCI_PIN_DEFAULT,
[3] = PCI_PIN_UNUSED
},
.serr_irq = PCI_PIN_UNUSED, /* Modified in mb680_device_init() below */
.idsel_lo = 30,
.idsel_hi = 30,
.req_gnt = {
[0] = PCI_PIN_DEFAULT,
[1] = PCI_PIN_UNUSED,
[2] = PCI_PIN_UNUSED,
[3] = PCI_PIN_UNUSED
},
.pci_clk = 33333333,
/* When connected to the mb705, PCI reset is controlled by an EPLD
* register on the mb705. When used standalone a PIO pin is used,
* and J47-D, J9-G must be fitted. */
#ifdef CONFIG_SH_ST_MB705
.pci_reset = mb705_epld_pci_reset,
#else
.pci_reset_gpio = MB680_PIO_PCI_RESET,
#endif
};
int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
/* We can use the standard function on this board */
return stx7105_pcibios_map_platform_irq(&mb680_pci_config, pin);
}
void __init mbxxx_configure_audio_pins(int *pcm_reader, int *pcm_player)
{
*pcm_reader = -1;
*pcm_player = 0;
stx7105_configure_audio(&(struct stx7105_audio_config) {
.pcm_player_0_output =
stx7105_pcm_player_0_output_6_channels,
.spdif_player_output_enabled = 1,
.pcm_reader_input_enabled =
cpu_data->type == CPU_STX7105, });
}
#ifdef CONFIG_SH_ST_MB705
void __init mbxxx_configure_nand_flash(struct stm_nand_config *config)
{
stx7105_configure_nand(config);
}
/* GPIO based SPI */
static struct platform_device mb680_serial_flash_bus = {
.name = "spi_gpio",
.id = 8,
.num_resources = 0,
.dev.platform_data = &(struct spi_gpio_platform_data) {
.sck = stm_gpio(15, 0),
.mosi = stm_gpio(15, 1),
.miso = stm_gpio(15, 3),
.num_chipselect = 1,
},
};
void __init mbxxx_configure_serial_flash(struct spi_board_info *serial_flash)
{
/* Specify CSn and SPI bus */
serial_flash->bus_num = 8;
serial_flash->controller_data = (void *)stm_gpio(15, 2);
/* Register SPI bus and flash devices */
platform_device_register(&mb680_serial_flash_bus);
spi_register_board_info(serial_flash, 1);
}
#endif
static int __init mb680_devices_init(void)
{
/* Setup the PCI_SERR# PIO
* J20-A - open, J27-E - closed */
if (gpio_request(MB680_PIO_PCI_SERR, "PCI_SERR#") == 0) {
gpio_direction_input(MB680_PIO_PCI_SERR);
mb680_pci_config.serr_irq = gpio_to_irq(MB680_PIO_PCI_SERR);
set_irq_type(mb680_pci_config.serr_irq, IRQ_TYPE_LEVEL_LOW);
} else {
printk(KERN_WARNING "mb680: Failed to claim PCI_SERR PIO!\n");
}
stx7105_configure_pci(&mb680_pci_config);
stx7105_configure_sata(0);
/* Valid only for mb680 rev. A & rev. B (they had two SATA lines) */
stx7105_configure_sata(1);
stx7105_configure_pwm(&(struct stx7105_pwm_config) {
.out0 = stx7105_pwm_out0_pio13_0,
.out1 = stx7105_pwm_out1_disabled, });
/* NIM CD I2C bus*/
stx7105_configure_ssc_i2c(1, &(struct stx7105_ssc_config) {
.routing.ssc1.sclk = stx7105_ssc1_sclk_pio2_5,
.routing.ssc1.mtsr = stx7105_ssc1_mtsr_pio2_6, });
/* NIM AB/STRecord I2C bus*/
stx7105_configure_ssc_i2c(2, &(struct stx7105_ssc_config) {
.routing.ssc2.sclk = stx7105_ssc2_sclk_pio3_4,
.routing.ssc2.mtsr = stx7105_ssc2_mtsr_pio3_5, });
/* HDMI I2C bus */
stx7105_configure_ssc_i2c(3, &(struct stx7105_ssc_config) {
.routing.ssc3.sclk = stx7105_ssc3_sclk_pio3_6,
.routing.ssc3.mtsr = stx7105_ssc3_mtsr_pio3_7, });
/*
* Note that USB port configuration depends on jumper
* settings:
*
* PORT 0 PORT 1
* +-----------------------------------------------------------
* norm | 4[4] J5A:2-3 4[6] J10A:2-3
* alt | 12[5] J5A:1-2 J6F:open 14[6] J10A:1-2 J11G:open
* norm | 4[5] J5B:2-3 4[7] J10B:2-3
* alt | 12[6] J5B:1-2 J6G:open 14[7] J10B:1-2 J11H:open
*/
stx7105_configure_usb(0, &(struct stx7105_usb_config) {
.ovrcur_mode = stx7105_usb_ovrcur_active_low,
.pwr_enabled = 1,
.routing.usb0.ovrcur = stx7105_usb0_ovrcur_pio4_4,
.routing.usb0.pwr = stx7105_usb0_pwr_pio4_5, });
stx7105_configure_usb(1, &(struct stx7105_usb_config) {
.ovrcur_mode = stx7105_usb_ovrcur_active_low,
.pwr_enabled = 1,
.routing.usb1.ovrcur = stx7105_usb1_ovrcur_pio4_6,
.routing.usb1.pwr = stx7105_usb1_pwr_pio4_7, });
gpio_request(MB680_PIO_PHY_RESET, "notPioResetMII");
gpio_direction_output(MB680_PIO_PHY_RESET, 1);
gpio_request(MB680_PIO_MII_BUS_SWITCH, "MIIBusSwitchnotOE");
gpio_direction_output(MB680_PIO_MII_BUS_SWITCH, 1);
stx7105_configure_ethernet(0, &(struct stx7105_ethernet_config) {
.mode = stx7105_ethernet_mode_mii,
.ext_clk = 1,
.phy_bus = 0,
.phy_addr = -1,
.mdio_bus_data = &stmmac_mdio_bus,
});
/*
* Check jumpers before using IR:
* On the mb705:
* J25A : 1-2
* J25B : 1-2 (UHF), 2-3 (IR)
* On the mb680:
* J15A : fitted
*/
stx7105_configure_lirc(&(struct stx7105_lirc_config) {
#ifdef CONFIG_LIRC_STM_UHF
.rx_mode = stx7105_lirc_rx_mode_uhf,
#else
.rx_mode = stx7105_lirc_rx_mode_ir,
#endif
.tx_enabled = 1,
.tx_od_enabled = 1, });
return platform_add_devices(mb680_devices, ARRAY_SIZE(mb680_devices));
}
arch_initcall(mb680_devices_init);
static void __iomem *mb680_ioport_map(unsigned long port, unsigned int size)
{
/*
* If we have PCI then this should never be called because we
* are using the generic iomap implementation. If we don't
* have PCI then there are no IO mapped devices, so it still
* shouldn't be called.
*/
BUG();
return (void __iomem *)CCN_PVR;
}
static void __init mb680_init_irq(void)
{
#ifndef CONFIG_SH_ST_MB705
/* Configure STEM interrupts as active low. */
set_irq_type(ILC_EXT_IRQ(1), IRQ_TYPE_LEVEL_LOW);
set_irq_type(ILC_EXT_IRQ(2), IRQ_TYPE_LEVEL_LOW);
#endif
}
struct sh_machine_vector mv_mb680 __initmv = {
.mv_name = "STx7105 Mboard",
.mv_setup = mb680_setup,
.mv_nr_irqs = NR_IRQS,
.mv_init_irq = mb680_init_irq,
.mv_ioport_map = mb680_ioport_map,
STM_PCI_IO_MACHINE_VEC
};