satip-axe/kernel/arch/sh/boards/mach-iptv7105/setup.c

/*
 * arch/sh/boards/mach-iptv7105/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 IPTV PLUGGIN 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/gpio.h>
#include <linux/stm/platform.h>
#include <linux/stm/stx7105.h>
#include <linux/stm/nand.h>
#include <linux/stm/pci-glue.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#include <asm/irq-ilc.h>

#define IPTV7105_PIO_PHY_RESET stm_gpio(15, 5)
#define IPTV7105_PIO_PCI_IDSEL stm_gpio(10, 2)
#define IPTV7105_PIO_PCI_SERR  stm_gpio(15, 4)
#define IPTV7105_PIO_PCI_RESET stm_gpio(15, 7)
#define IPTV7105_PIO_FLASH_VPP stm_gpio(6, 5)
#define IPTV7105_PIO_SPI_BOOT_CLK   stm_gpio(15, 0)
#define IPTV7105_PIO_SPI_BOOT_DOUT  stm_gpio(15, 1)
#define IPTV7105_PIO_SPI_BOOT_NOTCS stm_gpio(15, 2)
#define IPTV7105_PIO_SPI_BOOT_DIN   stm_gpio(15, 3)

static void __init iptv7105_setup(char **cmdline_p)
{
	printk(KERN_INFO "STMicroelectronics STx7105 IPTV board initialisation\n");

	stx7105_early_device_init();

	/* CN5, which is usually connected to CN6 on the debug board and
	 * eventually becomes female DB9 socket CN8 there... */
	stx7105_configure_asc(0, &(struct stx7105_asc_config) {
			.routing.asc2 = stx7105_asc2_pio4,
			.hw_flow_control = 1,
			.is_console = 1, });

	/* CN17, which is usually connected to CN18 on the debug board and
	 * eventually becomes female DB9 socket CN7 there... */
	stx7105_configure_asc(3, &(struct stx7105_asc_config) {
			.hw_flow_control = 1,
			.is_console = 0, });

	/* CN4 */
	stx7105_configure_asc(2, &(struct stx7105_asc_config) {
			.hw_flow_control = 1,
			.is_console = 0, });
}

static int iptv7105_phy_reset(void *bus)
{
	gpio_set_value(IPTV7105_PIO_PHY_RESET, 0);
	udelay(100);
	gpio_set_value(IPTV7105_PIO_PHY_RESET, 1);
	udelay(1);

	return 1;
}

static struct stmmac_mdio_bus_data stmmac_mdio_bus = {
	.bus_id = 0,
	.phy_reset = iptv7105_phy_reset,
	.phy_mask = 0,
};

/* Serial Flash */
static struct spi_board_info iptv7105_serial_flash = {
	.modalias       = "m25p80",
	.bus_num        = 0,
	.chip_select    = stm_gpio(2, 4),
	.max_speed_hz   = 7000000,
	.mode           = SPI_MODE_3,
	.platform_data  = &(struct flash_platform_data) {
		.name = "m25p80",
		.type = "m25p32",
		.nr_parts	= 2,
		.parts = (struct mtd_partition []) {
			{
				.name = "Serial Flash 1",
				.size = 0x00080000,
				.offset = 0,
			}, {
				.name = "Serial Flash 2",
				.size = MTDPART_SIZ_FULL,
				.offset = MTDPART_OFS_NXTBLK,
			},
		},
	},
};

/* NAND Flash */
struct stm_nand_bank_data iptv7105_nand_flash = {
	.csn		= 0,
	.options	= NAND_NO_AUTOINCR | NAND_USE_FLASH_BBT,
	.nr_partitions	= 2,
	.partitions	= (struct mtd_partition []) {
		{
			.name	= "NAND Flash 1",
			.offset	= 0,
			.size 	= 0x00800000
		}, {
			.name	= "NAND Flash 2",
			.offset = MTDPART_OFS_NXTBLK,
			.size	= MTDPART_SIZ_FULL
		},
	},
	.timing_data		= &(struct stm_nand_timing_data) {
		.sig_setup	= 50,		/* times in ns */
		.sig_hold	= 50,
		.CE_deassert	= 0,
		.WE_to_RBn	= 100,
		.wr_on		= 10,
		.wr_off		= 40,
		.rd_on		= 10,
		.rd_off		= 40,
		.chip_delay	= 30,		/* in us */
	},
};


static struct platform_device *iptv7105_devices[] __initdata = {
};

/* PCI configuration */

static struct stm_plat_pci_config iptv7105_pci_config = {
	.pci_irq = {
		[0] = PCI_PIN_DEFAULT,
		[1] = PCI_PIN_DEFAULT,
		[2] = PCI_PIN_UNUSED,
		[3] = PCI_PIN_UNUSED
	},
	.serr_irq = PCI_PIN_UNUSED,
	.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,
	.pci_reset_gpio = IPTV7105_PIO_PCI_RESET,
};

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(&iptv7105_pci_config, pin);
}

static int __init iptv7105_devices_init(void)
{
	/* The IDSEL line is connected to PIO10.2 only... Luckily
	 * there is just one slot, so we can just force 1... */
	if (gpio_request(IPTV7105_PIO_PCI_IDSEL, "PCI_IDSEL") == 0)
		gpio_direction_output(IPTV7105_PIO_PCI_IDSEL, 1);
	else
		printk(KERN_ERR "iptv7105: Failed to claim PCI_IDSEL PIO!\n");
	/* Setup the PCI_SERR# PIO */
	if (gpio_request(IPTV7105_PIO_PCI_SERR, "PCI_SERR#") == 0) {
		gpio_direction_input(IPTV7105_PIO_PCI_SERR);
		iptv7105_pci_config.serr_irq =
				gpio_to_irq(IPTV7105_PIO_PCI_SERR);
		set_irq_type(iptv7105_pci_config.serr_irq, IRQ_TYPE_LEVEL_LOW);
	} else {
		printk(KERN_ERR "iptv7105: Failed to claim PCI SERR PIO!\n");
	}
	/* And finally! */
	stx7105_configure_pci(&iptv7105_pci_config);

	stx7105_configure_sata(0);

	/* Set SPI Boot pads as inputs to avoid contention with SSC1 */
	if (gpio_request(IPTV7105_PIO_SPI_BOOT_CLK, "SPI Boot CLK") == 0)
		gpio_direction_input(IPTV7105_PIO_SPI_BOOT_CLK);
	else
		printk(KERN_ERR "iptv7105: Failed to claim SPI Boot CLK!\n");

	if (gpio_request(IPTV7105_PIO_SPI_BOOT_DOUT, "SPI Boot DOUT") == 0)
		gpio_direction_input(IPTV7105_PIO_SPI_BOOT_DOUT);
	else
		printk(KERN_ERR "iptv7105: Failed to claim SPI Boot DOUT!\n");

	if (gpio_request(IPTV7105_PIO_SPI_BOOT_NOTCS, "SPI Boot NOTCS") == 0)
		gpio_direction_input(IPTV7105_PIO_SPI_BOOT_NOTCS);
	else
		printk(KERN_ERR "iptv7105: Failed to claim SPI Boot NOTCS!\n");

	if (gpio_request(IPTV7105_PIO_SPI_BOOT_DIN, "SPI Boot DIN") == 0)
		gpio_direction_input(IPTV7105_PIO_SPI_BOOT_DIN);
	else
		printk(KERN_ERR "iptv7105: Failed to claim SPI Boot DIN!\n");

	/* Serial Flash SPI bus */
	stx7105_configure_ssc_spi(1, &(struct stx7105_ssc_config) {
			.routing.ssc1.sclk = stx7105_ssc1_sclk_pio2_5,
			.routing.ssc1.mtsr = stx7105_ssc1_mtsr_pio2_6,
			.routing.ssc1.mrst = stx7105_ssc1_mrst_pio2_7, });

	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(IPTV7105_PIO_PHY_RESET, "eth_phy_reset");
	gpio_direction_output(IPTV7105_PIO_PHY_RESET, 1);

	stx7105_configure_ethernet(0, &(struct stx7105_ethernet_config) {
			.mode = stx7105_ethernet_mode_mii,
			.ext_clk = 0,
			.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, });

	stx7105_configure_audio(&(struct stx7105_audio_config) {
			.pcm_player_0_output =
					stx7105_pcm_player_0_output_2_channels,
			});

	/* just permanetly enable the flash*/
	gpio_request(IPTV7105_PIO_FLASH_VPP, "eth_phy_reset");
	gpio_direction_output(IPTV7105_PIO_FLASH_VPP, 1);

	stx7105_configure_nand(&(struct stm_nand_config) {
			.driver = stm_nand_flex,
			.nr_banks = 1,
			.banks = &iptv7105_nand_flash,
			.rbn.flex_connected = 1,});

	spi_register_board_info(&iptv7105_serial_flash, 1);

	return platform_add_devices(iptv7105_devices,
				    ARRAY_SIZE(iptv7105_devices));
}
arch_initcall(iptv7105_devices_init);

static void __iomem *iptv7105_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;
}

struct sh_machine_vector mv_iptv7105 __initmv = {
	.mv_name	= "iptv7105",
	.mv_setup	= iptv7105_setup,
	.mv_nr_irqs	= NR_IRQS,
	.mv_ioport_map	= iptv7105_ioport_map,
	STM_PCI_IO_MACHINE_VEC
};