satip-axe/kernel/arch/sh/boards/mach-mb839/setup.c
2015-03-26 17:24:57 +01:00

216 lines
5.7 KiB
C

/*
* arch/sh/boards/mach-mb839/setup.c
*
* Copyright (C) 2008 STMicroelectronics Limited
* Author: Carl Shaw (carl.shaw@st.com)
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*
* STMicroelectronics MB839 board 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 <asm/irq-ilc.h>
#define MB839_PIO_PHY_NOTINTMODE stm_gpio(7, 0)
#define MB839_PIO_PHY_MODE1 stm_gpio(7, 1)
#define MB839_PIO_PHY_MODE2 stm_gpio(7, 2)
#define MB839_PIO_PHY_RESET stm_gpio(7, 3)
static void __init mb839_setup(char **cmdline_p)
{
printk("STMicroelectronics MB839 initialisation\n");
stx7105_early_device_init();
/* smart card on PIO0, modem on PIO4, uart on PIO5 */
stx7105_configure_asc(2, &(struct stx7105_asc_config) {
.routing.asc2 = stx7105_asc2_pio4,
.hw_flow_control = 1,
.is_console = 0, });
stx7105_configure_asc(3, &(struct stx7105_asc_config) {
.hw_flow_control = 1,
.is_console = 1, });
}
static struct platform_device mb839_leds = {
.name = "leds-gpio",
.id = 0,
.dev.platform_data = &(struct gpio_led_platform_data){
.num_leds = 2,
.leds = (struct gpio_led[]){
{
.name = "LD1",
.default_trigger= "heartbeat",
.gpio = stm_gpio(2, 0),
.active_low = 1,
}, {
.name = "LD2",
.gpio = stm_gpio(2, 1),
.active_low = 1,
},
},
},
};
/*
* On the MB839, the PHY is held in reset and needs enabling via PIO
* pins. Some e/net lines are also used as SoC mode pins and we need to
* drive these high in order to get e/net to work.
*/
static int mb839_phy_reset(void *bus)
{
gpio_set_value(MB839_PIO_PHY_NOTINTMODE, 1);
gpio_set_value(MB839_PIO_PHY_MODE1, 1);
gpio_set_value(MB839_PIO_PHY_MODE2, 1);
gpio_set_value(MB839_PIO_PHY_RESET, 1);
udelay(1);
gpio_set_value(MB839_PIO_PHY_RESET, 0);
udelay(100);
gpio_set_value(MB839_PIO_PHY_RESET, 1);
udelay(1);
return 0;
}
static struct stmmac_mdio_bus_data stmmac_mdio_bus = {
.bus_id = 0,
.phy_reset = mb839_phy_reset,
.phy_mask = 0,
};
static struct mtd_partition mb839_mtd_parts_table[] = {
{
.name = "NOR FLASH",
.size = MTDPART_SIZ_FULL,
.offset = 0x00000000,
}
};
static struct physmap_flash_data mb839_physmap_flash_data = {
.width = 2,
.nr_parts = ARRAY_SIZE(mb839_mtd_parts_table),
.parts = mb839_mtd_parts_table
};
static struct platform_device mb839_physmap_flash = {
.name = "physmap-flash",
.id = -1,
.num_resources = 1,
.resource = (struct resource[]){
{
.start = 0x00000000, /* Can be overridden */
.end = 128 * 1024 * 1024 - 1,
.flags = IORESOURCE_MEM,
}
},
.dev = {
.platform_data = &mb839_physmap_flash_data,
},
};
static struct platform_device *mb839_devices[] __initdata = {
&mb839_leds,
&mb839_physmap_flash,
};
static int __init device_init(void)
{
stx7105_configure_sata(0);
stx7105_configure_pwm(&(struct stx7105_pwm_config) {
.out0 = stx7105_pwm_out0_pio13_0,
.out1 = stx7105_pwm_out1_disabled, });
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, });
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, });
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, });
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(MB839_PIO_PHY_NOTINTMODE, "PhyNotIntMode");
gpio_request(MB839_PIO_PHY_MODE1, "PhyMode1Sel");
gpio_request(MB839_PIO_PHY_MODE2, "PhyMode2Sel");
gpio_request(MB839_PIO_PHY_RESET, "ResetMII");
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,
});
stx7105_configure_lirc(&(struct stx7105_lirc_config) {
.rx_mode = stx7105_lirc_rx_mode_ir,
.tx_enabled = 1,
.tx_od_enabled = 1, });
return platform_add_devices(mb839_devices, ARRAY_SIZE(mb839_devices));
}
arch_initcall(device_init);
static void __iomem *mb839_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 mb839_init_irq(void)
{
/* 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);
}
struct sh_machine_vector mv_mb839 __initmv = {
.mv_name = "MB839 Reference Board",
.mv_setup = mb839_setup,
.mv_nr_irqs = NR_IRQS,
.mv_init_irq = mb839_init_irq,
.mv_ioport_map = mb839_ioport_map,
#ifdef CONFIG_SH_ST_SYNOPSYS_PCI
STM_PCI_IO_MACHINE_VEC
#endif
};