satip-axe/kernel/arch/sh/boards/mach-hdk7111/setup.c

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/*
* arch/sh/boards/st/mach-hdk7111/setup.c
*
* Copyright (C) 2011 STMicroelectronics Limited
* Author: John Boddie (john.boddie@st.com)
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*
* STMicroelectronics STx7111 HDK board support.
*/
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/leds.h>
#include <linux/lirc.h>
#include <linux/gpio.h>
#include <linux/phy.h>
#include <linux/input.h>
#include <linux/stm/platform.h>
#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/stm/stx7111.h>
#include <linux/stm/emi.h>
#include <linux/stm/pci-glue.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/partitions.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#include <asm/irq-ilc.h>
#define HDK7111_PIO_PHY_RESET stm_gpio(1, 6)
/* The hdk7111 board is populated with NOR, NAND, and Serial Flash. The setup
* below assumes the board is in its default boot-from-NOR configuration. Other
* boot configurations are possible but require board-level modifications to be
* made, and equivalent changes to the setup here. Note, only boot-from-NOR has
* been fully tested.
*/
static void __init hdk7111_setup(char** cmdline_p)
{
printk(KERN_INFO "STMicroelectronics STx7111 HDK initialisation\n");
stx7111_early_device_init();
stx7111_configure_asc(2, &(struct stx7111_asc_config) {
.hw_flow_control = 0,
.is_console = 1, });
}
static struct platform_device hdk7111_leds = {
.name = "leds-gpio",
.id = -1,
.dev.platform_data = &(struct gpio_led_platform_data) {
.num_leds = 1,
.leds = (struct gpio_led[]) {
{
.name = "HB red",
.default_trigger = "heartbeat",
.gpio = stm_gpio(3, 0),
},
},
},
};
static struct gpio_keys_button hdk7111_buttons[] = {
{
.code = BTN_0,
.gpio = stm_gpio(6, 4),
.desc = "SW1",
},
{
.code = BTN_1,
.gpio = stm_gpio(6, 5),
.desc = "SW2",
},
{
.code = BTN_2,
.gpio = stm_gpio(6, 6),
.desc = "SW3",
},
};
static struct gpio_keys_platform_data hdk7111_button_data = {
.buttons = hdk7111_buttons,
.nbuttons = ARRAY_SIZE(hdk7111_buttons),
};
static struct platform_device hdk7111_button_device = {
.name = "gpio-keys",
.id = -1,
.num_resources = 0,
.dev = {
.platform_data = &hdk7111_button_data,
}
};
static struct platform_device hdk7111_nor_flash = {
.name = "physmap-flash",
.id = -1,
.num_resources = 1,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0, 32*1024*1024),
},
.dev.platform_data = &(struct physmap_flash_data) {
.width = 2,
.nr_parts = 3,
.parts = (struct mtd_partition []) {
{
.name = "NOR Flash 1",
.size = 0x00080000,
.offset = 0x00000000,
}, {
.name = "NOR Flash 2",
.size = 0x00200000,
.offset = MTDPART_OFS_NXTBLK,
}, {
.name = "NOR Flash 3",
.size = MTDPART_SIZ_FULL,
.offset = MTDPART_OFS_NXTBLK,
},
},
},
};
struct stm_nand_bank_data hdk7111_nand_flash = {
.csn = 1,
.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 spi_board_info hdk7111_serial_flash_board_info = {
.modalias = "m25p80",
.bus_num = 0,
.max_speed_hz = 7000000,
.chip_select = stm_gpio(6, 7),
.mode = SPI_MODE_3,
.platform_data = &(struct flash_platform_data) {
.name = "m25p80",
.type = "m25p16",
.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,
},
},
},
};
static int hdk7111_phy_reset(void *bus)
{
gpio_set_value(HDK7111_PIO_PHY_RESET, 0);
udelay(100);
gpio_set_value(HDK7111_PIO_PHY_RESET, 1);
return 1;
}
static struct stmmac_mdio_bus_data stmmac_mdio_bus = {
.bus_id = 0,
.phy_reset = hdk7111_phy_reset,
.phy_mask = 0,
};
#define HDK7111_PCI_IDSEL stm_gpio(4, 4)
#define HDK7111_PCI_SERR_IRQ ILC_EXT_IRQ(1)
static struct stm_plat_pci_config hdk7111_pci_config = {
.pci_irq = {
/* Bizarre irq usage */
[0] = PCI_PIN_UNUSED,
[1] = PCI_PIN_DEFAULT,
[2] = PCI_PIN_DEFAULT,
[3] = PCI_PIN_UNUSED,
},
.serr_irq = HDK7111_PCI_SERR_IRQ,
.idsel_lo = 30, /* Actually unused, connected to PIO */
.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 = stm_gpio(3, 7),
};
int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
int ret = -EINVAL;
/* Wacky interrupt routing, INTA is actually connected to
* what is usually INTC!
*/
if (pin == 1)
ret = evt2irq(0xa40);
else if (pin == 2)
ret = evt2irq(0xa20);
return ret;
}
static struct platform_device *hdk7111_devices[] __initdata = {
&hdk7111_leds,
&hdk7111_button_device,
&hdk7111_nor_flash,
};
static int __init hdk7111_devices_init(void)
{
struct sysconf_field *sc;
unsigned long nor_bank_base = 0;
unsigned long nor_bank_size = 0;
/* Configure Flash according to boot-device */
sc = sysconf_claim(SYS_STA, 1, 16, 17, "boot_device");
switch (sysconf_read(sc)) {
case 0x0:
/* Boot-from-NOR: */
pr_info("Configuring FLASH for boot-from-NOR\n");
nor_bank_base = emi_bank_base(0);
nor_bank_size = emi_bank_base(1) - nor_bank_base;
hdk7111_nand_flash.csn = 1;
break;
case 0x1:
/* Boot-from-NAND */
pr_info("Configuring FLASH for boot-from-NAND\n");
nor_bank_base = emi_bank_base(1);
nor_bank_size = emi_bank_base(2) - nor_bank_base;
hdk7111_nand_flash.csn = 0;
break;
case 0x2:
/* Boot-from-SPI */
pr_info("Configuring FLASH for boot-from-SPI\n");
/* NOR mapped to EMIB, with physical offset of 0x06000000! */
nor_bank_base = emi_bank_base(1);
nor_bank_size = emi_bank_base(2) - nor_bank_base;
hdk7111_nand_flash.csn = 0;
break;
default:
BUG();
break;
}
sysconf_release(sc);
/* Update NOR Flash base address and size: */
/* - reduce visibility of NOR flash to EMI bank size */
if (hdk7111_nor_flash.resource[0].end > nor_bank_size - 1)
hdk7111_nor_flash.resource[0].end = nor_bank_size - 1;
/* - update resource parameters */
hdk7111_nor_flash.resource[0].start += nor_bank_base;
hdk7111_nor_flash.resource[0].end += nor_bank_base;
stx7111_configure_nand(&(struct stm_nand_config) {
.driver = stm_nand_flex,
.nr_banks = 1,
.banks = &hdk7111_nand_flash,
.rbn.flex_connected = 1,});
spi_register_board_info(&hdk7111_serial_flash_board_info, 1);
/* The hdk board is another board where the IDSEL line is erroneously
* connected to a PIO rather than to the address lines. Since there is
* only one card, we just claim it and drive it high permanently, so
* that card is always selected for config cycles.
*/
if (!gpio_request(HDK7111_PCI_IDSEL, "pci idsel"))
gpio_direction_output(HDK7111_PCI_IDSEL, 1);
else
pr_err("Unable to claim IDSEL PCI signal\n");
/* The SERR interrupt is connected to the external IRQ pins */
set_irq_type(HDK7111_PCI_SERR_IRQ, IRQ_TYPE_LEVEL_LOW);
stx7111_configure_pci(&hdk7111_pci_config);
stx7111_configure_pwm(&(struct stx7111_pwm_config) {
.out0_enabled = 1,
.out1_enabled = 0,
});
stx7111_configure_ssc_spi(0, NULL);
stx7111_configure_ssc_i2c(1);
stx7111_configure_ssc_i2c(2);
stx7111_configure_ssc_i2c(3);
stx7111_configure_usb(&(struct stx7111_usb_config) {
.invert_ovrcur = 1,
});
gpio_request(HDK7111_PIO_PHY_RESET, "eth_phy_reset");
gpio_direction_output(HDK7111_PIO_PHY_RESET, 1);
stx7111_configure_ethernet(&(struct stx7111_ethernet_config) {
.mode = stx7111_ethernet_mode_mii,
.ext_clk = 0,
.phy_bus = 0,
.phy_addr = 0,
.mdio_bus_data = &stmmac_mdio_bus,
});
stx7111_configure_lirc(&(struct stx7111_lirc_config) {
.rx_mode = stx7111_lirc_rx_mode_ir,
.tx_enabled = 1,
.tx_od_enabled = 0,
});
return platform_add_devices(hdk7111_devices,
ARRAY_SIZE(hdk7111_devices));
}
arch_initcall(hdk7111_devices_init);
static void __iomem *hdk7111_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 hdk7111_init_irq(void)
{
}
struct sh_machine_vector mv_hdk7111 __initmv = {
.mv_name = "STx7111 HDK",
.mv_setup = hdk7111_setup,
.mv_nr_irqs = NR_IRQS,
.mv_init_irq = hdk7111_init_irq,
.mv_ioport_map = hdk7111_ioport_map,
STM_PCI_IO_MACHINE_VEC
};