satip-axe/kernel/arch/sh/boards/mach-mb796/setup.c
2015-03-26 17:24:57 +01:00

206 lines
5.1 KiB
C

/*
* arch/sh/boards/mach-mb796/setup.c
*
* Copyright (C) 2010 STMicroelectronics Limited
* Author: Pawel Moll <pawel.moll@st.com>
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*
* STMicroelectronics STx5289 processor board support.
*/
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/leds.h>
#include <linux/phy.h>
#include <linux/gpio.h>
#include <linux/spi/flash.h>
#include <linux/stm/pci-glue.h>
#include <linux/stm/platform.h>
#include <linux/stm/stx5206.h>
#include <asm/irq.h>
#include <mach/common.h>
#include "../mach-st/mb705-epld.h"
#define MB796_NOTPIORESETMII stm_gpio(0, 6)
static void __init mb796_setup(char **cmdline_p)
{
printk(KERN_INFO "STMicroelectronics STx5289 Mboard initialisation\n");
stx5206_early_device_init();
stx5206_configure_asc(2, &(struct stx5206_asc_config) {
.hw_flow_control = 1,
.is_console = 1, });
stx5206_configure_asc(3, &(struct stx5206_asc_config) {
.hw_flow_control = 1,
.is_console = 0, });
}
static struct platform_device mb796_leds = {
.name = "leds-gpio",
.id = -1,
.dev.platform_data = &(struct gpio_led_platform_data) {
.num_leds = 1,
.leds = (struct gpio_led[]) {
{ /* J26-D fitted, J21-A 2-3 */
.name = "LD15 (GREEN)",
.default_trigger = "heartbeat",
.gpio = stm_gpio(3, 3),
},
},
},
};
/*
* 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 J22-B must be
* fitted.
*/
#ifdef CONFIG_SH_ST_MB705
static int mb796_phy_reset(void *bus)
{
mb705_reset(EPLD_EMI_RESET_SW0, 15000);
return 0;
}
#else
static int mb796_phy_reset(void *bus)
{
gpio_set_value(MB796_NOTPIORESETMII, 0);
udelay(15000);
gpio_set_value(MB796_NOTPIORESETMII, 1);
return 0;
}
#endif
static struct stmmac_mdio_bus_data stmmac_mdio_bus = {
.bus_id = 0,
.phy_reset = mb796_phy_reset,
.phy_mask = 0,
};
static struct platform_device *mb796_devices[] __initdata = {
&mb796_leds,
};
/* PCI configuration */
static struct stm_plat_pci_config mb796_pci_config = {
.pci_irq = {
[0] = PCI_PIN_DEFAULT,
[1] = PCI_PIN_DEFAULT, /* J20-C fitted, J20-D not fitted */
[2] = PCI_PIN_DEFAULT,
[3] = PCI_PIN_DEFAULT
},
.serr_irq = PCI_PIN_UNUSED,
.idsel_lo = 30, /* J15 2-3 */
.idsel_hi = 30,
.req_gnt = {
[0] = PCI_PIN_DEFAULT,
[1] = PCI_PIN_UNUSED,
[2] = PCI_PIN_UNUSED,
[3] = PCI_PIN_UNUSED
},
.pci_clk = 33333333,
/* Well, this board doesn't really provide any
* means of resetting the PCI devices... */
.pci_reset_gpio = -EINVAL,
};
int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
/* We can use the standard function on this board */
return stx5206_pcibios_map_platform_irq(&mb796_pci_config, pin);
}
#ifdef CONFIG_SH_ST_MB705
void __init mbxxx_configure_nand_flash(struct stm_nand_config *config)
{
stx5206_configure_nand(config);
}
static struct stm_plat_spifsm_data spifsm_serial_flash;
void __init mbxxx_configure_serial_flash(struct spi_board_info *serial_flash)
{
struct flash_platform_data *data =
(struct flash_platform_data *)serial_flash->platform_data;
spifsm_serial_flash.name = data->name;
spifsm_serial_flash.nr_parts = data->nr_parts;
spifsm_serial_flash.parts = data->parts;
stx5206_configure_spifsm(&spifsm_serial_flash);
}
#endif
static int __init mb796_devices_init(void)
{
gpio_request(MB796_NOTPIORESETMII, "notPioResetMii");
gpio_direction_output(MB796_NOTPIORESETMII, 1);
/* Internal I2C link */
stx5206_configure_ssc_i2c(0);
/* LNB (IC20) & CN21 - J34-A & J34-B fitted */
stx5206_configure_ssc_i2c(1);
/* NIM, CN4, CN5 & CN7 - J26-E & J26-F fitted, J21-B 2-3, J19-A 2-3 */
stx5206_configure_ssc_i2c(2);
/* HDMI chip (IC34) & CN31 - J26-G & J26-H fitted, J19-B 2-3, J25 2-3 */
stx5206_configure_ssc_i2c(3);
stx5206_configure_pci(&mb796_pci_config);
stx5206_configure_usb();
/* RMII mode jumper settings:
* - J38: 2-3
* - J39-A: open
* - J39-B: 2-3
* - SW4: 1-3=OFF, 4=ON
* - SW5: 1-2=ON, 3-4=OFF
* Required hardware rework:
* - R191-2 and R191-4 need to be pulled down with 1k resistor */
stx5206_configure_ethernet(&(struct stx5206_ethernet_config) {
.mode = stx5206_ethernet_mode_rmii,
.ext_clk = 0,
.phy_bus = 0,
.phy_addr = -1,
.mdio_bus_data = &stmmac_mdio_bus,
});
stx5206_configure_lirc(&(struct stx5206_lirc_config) {
.rx_mode = stx5206_lirc_rx_mode_ir, });
return platform_add_devices(mb796_devices, ARRAY_SIZE(mb796_devices));
}
arch_initcall(mb796_devices_init);
static void __iomem *mb796_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
* guaranteed to be available, and non-writable. */
return (void __iomem *)CCN_PVR;
}
struct sh_machine_vector mv_mb796 __initmv = {
.mv_name = "mb796",
.mv_setup = mb796_setup,
.mv_nr_irqs = NR_IRQS,
.mv_ioport_map = mb796_ioport_map,
STM_PCI_IO_MACHINE_VEC
};