satip-axe/kernel/arch/sh/boards/mach-mb704/setup.c
2015-03-26 17:24:57 +01:00

173 lines
4.5 KiB
C

/*
* arch/sh/boards/mach-mb704/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 STx5197 processor board support.
*/
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/leds.h>
#include <linux/phy.h>
#include <linux/gpio.h>
#include <linux/stm/platform.h>
#include <linux/stm/stx5197.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/spi/spi.h>
#include <linux/irq.h>
#include <linux/spi/flash.h>
#include <asm/irq-ilc.h>
#include <asm/irl.h>
static void __init mb704_setup(char **cmdline_p)
{
printk(KERN_INFO "STMicroelectronics STx5197 Mboard initialisation\n");
stx5197_early_device_init();
stx5197_configure_asc(2, &(struct stx5197_asc_config) {
.hw_flow_control = 0,
.is_console = 1, });
stx5197_configure_asc(3, &(struct stx5197_asc_config) {
.hw_flow_control = 0,
.is_console = 0, });
}
static struct platform_device mb704_leds = {
.name = "leds-gpio",
.id = -1,
.dev.platform_data = &(struct gpio_led_platform_data) {
.num_leds = 1,
.leds = (struct gpio_led[]) {
{
.name = "HB",
.default_trigger = "heartbeat",
.gpio = stm_gpio(3, 6),
.active_low = 1,
},
},
},
};
static struct mtd_partition mb704_serial_flash_partitions[] = {
{
.name = "sflash_1",
.size = 0x00080000,
.offset = 0,
}, {
.name = "sflash_2",
.size = MTDPART_SIZ_FULL,
.offset = 0x20000
},
};
/* Serial FLASH is AT45DB321x, handled by 'mtd_dataflash' SPI driver */
static struct flash_platform_data mb704_serial_flash_data = {
.parts = mb704_serial_flash_partitions,
.nr_parts = ARRAY_SIZE(mb704_serial_flash_partitions),
};
/* Note to use the mb704's SPI Flash device J10 needs to be in position 1-2. */
static struct spi_board_info mb704_serial_flash = {
.modalias = "mtd_dataflash",
.chip_select = 0,
.max_speed_hz = 120000,
.bus_num = 0,
.platform_data = &mb704_serial_flash_data,
};
static struct stmmac_mdio_bus_data stmmac_mdio_bus = {
.bus_id = 0,
.phy_mask = 0,
};
static struct platform_device *mb704_devices[] __initdata = {
&mb704_leds,
};
static int __init mb704_devices_init(void)
{
/* By default we don't configure PWM as the mb704 has J2C fitted
* which results in contention.
* stx5197_configure_pwm();
*/
/* Configure SSC0 as SPI to drive serial Flash attached to SPI
* (requires SSC driver SPI) or as I2C to drive I2C devices such
* as HDMI.
* To use SSC0 as I2C bus 0 (PIO1:1:0]) it is necessary to fit
* jumpers J2-E, J2-G, J2-F and J2-H. */
stx5197_configure_ssc_spi(0);
/* I2C bus 1 can be routed to on chip QPSK block (setting routing to
* STX7141_ROUTING_SSC1_I2C_QPSK) or the pins QAM_SCLT/SDAT
* (setting STX7141_ROUTING_SSC1_I2C_QAM). Both require SSC driver. */
stx5197_configure_ssc_i2c(1, &(struct stx5197_ssc_i2c_config) {
.routing.ssc1 = stx5197_ssc1_i2c_qpsk, });
/* To use I2C bus 2 (PIO3[3:2]) it is necessary to remove jumpers
* J7-A, J7-C, J6-H and J6-F and fit J7-B and J6-G. */
stx5197_configure_ssc_i2c(2, &(struct stx5197_ssc_i2c_config) {
.routing.ssc2 = stx5197_ssc2_i2c_pio3, });
stx5197_configure_usb();
stx5197_configure_ethernet(&(struct stx5197_ethernet_config) {
.mode = stx5197_ethernet_mode_mii,
.ext_clk = 1,
.phy_bus = 0,
.phy_addr = -1,
.mdio_bus_data = &stmmac_mdio_bus,
});
/* To have UHF available on MB704:
* need one wire from J14-C to J14-E */
stx5197_configure_lirc(&(struct stx5197_lirc_config) {
#ifdef CONFIG_LIRC_STM_UHF
.rx_mode = stx5197_lirc_rx_mode_uhf.
#else
.rx_mode = stx5197_lirc_rx_mode_ir,
#endif
.tx_enabled = 1, });
spi_register_board_info(&mb704_serial_flash, 1);
return platform_add_devices(mb704_devices, ARRAY_SIZE(mb704_devices));
}
arch_initcall(mb704_devices_init);
static void __iomem *mb704_ioport_map(unsigned long port, unsigned int size)
{
/*
* However picking somewhere safe isn't as easy as you might
* think. I used to use external ROM, but that can cause
* problems if you are in the middle of updating Flash. So I'm
* now using the processor core version register, which is
* guaranted to be available, and non-writable.
*/
return (void __iomem *)CCN_PVR;
}
static void __init mb704_init_irq(void)
{
}
struct sh_machine_vector mv_mb704 __initmv = {
.mv_name = "mb704",
.mv_setup = mb704_setup,
.mv_nr_irqs = NR_IRQS,
.mv_init_irq = mb704_init_irq,
.mv_ioport_map = mb704_ioport_map,
};