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3f8c48d95f
linux-next/arch/arm/mach-omap2/board-igep0020.c
Enric Balletbo i Serra 3f8c48d95f omap3: Introduce function to detect the IGEP v2 hardwarerevision 
There are currently two versions of IGEP v2 board, this patch introduces a
function to detect the hardware revision of IGEP board.

  --------------------------
 | Id. | Hw Rev. | GPIO 28  |
  --------------------------
 |  0  |   B/C   |   high   |
 |  1  |   C     |   low    |
  --------------------------

Signed-off-by: Enric Balletbo i Serra <eballetbo@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-10-08 10:22:35 -07:00

627 lines
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/*
* Copyright (C) 2009 Integration Software and Electronic Engineering.
*
* Modified from mach-omap2/board-generic.c
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/regulator/machine.h>
#include <linux/i2c/twl.h>
#include <linux/mmc/host.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <plat/board.h>
#include <plat/common.h>
#include <plat/gpmc.h>
#include <plat/usb.h>
#include <plat/display.h>
#include <plat/onenand.h>
#include "mux.h"
#include "hsmmc.h"
#include "sdram-numonyx-m65kxxxxam.h"
#define IGEP2_SMSC911X_CS 5
#define IGEP2_SMSC911X_GPIO 176
#define IGEP2_GPIO_USBH_NRESET 24
#define IGEP2_GPIO_LED0_GREEN 26
#define IGEP2_GPIO_LED0_RED 27
#define IGEP2_GPIO_LED1_RED 28
#define IGEP2_GPIO_DVI_PUP 170
#define IGEP2_GPIO_WIFI_NPD 94
#define IGEP2_GPIO_WIFI_NRESET 95
/*
* IGEP2 Hardware Revision Table
*
* --------------------------
* | Id. | Hw Rev. | HW0 (28) |
* --------------------------
* | 0 | B/C | high |
* | 1 | C | low |
* --------------------------
*/
#define IGEP2_BOARD_HWREV_B 0
#define IGEP2_BOARD_HWREV_C 1
static u8 hwrev;
static void __init igep2_get_revision(void)
{
u8 ret;
omap_mux_init_gpio(IGEP2_GPIO_LED1_RED, OMAP_PIN_INPUT);
if ((gpio_request(IGEP2_GPIO_LED1_RED, "GPIO_HW0_REV") == 0) &&
(gpio_direction_input(IGEP2_GPIO_LED1_RED) == 0)) {
ret = gpio_get_value(IGEP2_GPIO_LED1_RED);
if (ret == 0) {
pr_info("IGEP2: Hardware Revision C (B-NON compatible)\n");
hwrev = IGEP2_BOARD_HWREV_C;
} else if (ret == 1) {
pr_info("IGEP2: Hardware Revision B/C (B compatible)\n");
hwrev = IGEP2_BOARD_HWREV_B;
} else {
pr_err("IGEP2: Unknown Hardware Revision\n");
hwrev = -1;
}
} else {
pr_warning("IGEP2: Could not obtain gpio GPIO_HW0_REV\n");
pr_err("IGEP2: Unknown Hardware Revision\n");
}
gpio_free(IGEP2_GPIO_LED1_RED);
}
#if defined(CONFIG_MTD_ONENAND_OMAP2) || \
defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
#define ONENAND_MAP 0x20000000
/* NAND04GR4E1A ( x2 Flash built-in COMBO POP MEMORY )
* Since the device is equipped with two DataRAMs, and two-plane NAND
* Flash memory array, these two component enables simultaneous program
* of 4KiB. Plane1 has only even blocks such as block0, block2, block4
* while Plane2 has only odd blocks such as block1, block3, block5.
* So MTD regards it as 4KiB page size and 256KiB block size 64*(2*2048)
*/
static struct mtd_partition igep2_onenand_partitions[] = {
{
.name = "X-Loader",
.offset = 0,
.size = 2 * (64*(2*2048))
},
{
.name = "U-Boot",
.offset = MTDPART_OFS_APPEND,
.size = 6 * (64*(2*2048)),
},
{
.name = "Environment",
.offset = MTDPART_OFS_APPEND,
.size = 2 * (64*(2*2048)),
},
{
.name = "Kernel",
.offset = MTDPART_OFS_APPEND,
.size = 12 * (64*(2*2048)),
},
{
.name = "File System",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
},
};
static int igep2_onenand_setup(void __iomem *onenand_base, int freq)
{
/* nothing is required to be setup for onenand as of now */
return 0;
}
static struct omap_onenand_platform_data igep2_onenand_data = {
.parts = igep2_onenand_partitions,
.nr_parts = ARRAY_SIZE(igep2_onenand_partitions),
.onenand_setup = igep2_onenand_setup,
.dma_channel = -1, /* disable DMA in OMAP OneNAND driver */
};
static struct platform_device igep2_onenand_device = {
.name = "omap2-onenand",
.id = -1,
.dev = {
.platform_data = &igep2_onenand_data,
},
};
static void __init igep2_flash_init(void)
{
u8 cs = 0;
u8 onenandcs = GPMC_CS_NUM + 1;
while (cs < GPMC_CS_NUM) {
u32 ret = 0;
ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
/* Check if NAND/oneNAND is configured */
if ((ret & 0xC00) == 0x800)
/* NAND found */
pr_err("IGEP v2: Unsupported NAND found\n");
else {
ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG7);
if ((ret & 0x3F) == (ONENAND_MAP >> 24))
/* ONENAND found */
onenandcs = cs;
}
cs++;
}
if (onenandcs > GPMC_CS_NUM) {
pr_err("IGEP v2: Unable to find configuration in GPMC\n");
return;
}
if (onenandcs < GPMC_CS_NUM) {
igep2_onenand_data.cs = onenandcs;
if (platform_device_register(&igep2_onenand_device) < 0)
pr_err("IGEP v2: Unable to register OneNAND device\n");
}
}
#else
static void __init igep2_flash_init(void) {}
#endif
#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
#include <linux/smsc911x.h>
static struct smsc911x_platform_config igep2_smsc911x_config = {
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
.flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS ,
.phy_interface = PHY_INTERFACE_MODE_MII,
};
static struct resource igep2_smsc911x_resources[] = {
{
.flags = IORESOURCE_MEM,
},
{
.start = OMAP_GPIO_IRQ(IGEP2_SMSC911X_GPIO),
.end = OMAP_GPIO_IRQ(IGEP2_SMSC911X_GPIO),
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
},
};
static struct platform_device igep2_smsc911x_device = {
.name = "smsc911x",
.id = 0,
.num_resources = ARRAY_SIZE(igep2_smsc911x_resources),
.resource = igep2_smsc911x_resources,
.dev = {
.platform_data = &igep2_smsc911x_config,
},
};
static inline void __init igep2_init_smsc911x(void)
{
unsigned long cs_mem_base;
if (gpmc_cs_request(IGEP2_SMSC911X_CS, SZ_16M, &cs_mem_base) < 0) {
pr_err("IGEP v2: Failed request for GPMC mem for smsc911x\n");
gpmc_cs_free(IGEP2_SMSC911X_CS);
return;
}
igep2_smsc911x_resources[0].start = cs_mem_base + 0x0;
igep2_smsc911x_resources[0].end = cs_mem_base + 0xff;
if ((gpio_request(IGEP2_SMSC911X_GPIO, "SMSC911X IRQ") == 0) &&
(gpio_direction_input(IGEP2_SMSC911X_GPIO) == 0)) {
gpio_export(IGEP2_SMSC911X_GPIO, 0);
} else {
pr_err("IGEP v2: Could not obtain gpio for for SMSC911X IRQ\n");
return;
}
platform_device_register(&igep2_smsc911x_device);
}
#else
static inline void __init igep2_init_smsc911x(void) { }
#endif
static struct omap_board_config_kernel igep2_config[] __initdata = {
};
static struct regulator_consumer_supply igep2_vmmc1_supply = {
.supply = "vmmc",
};
static struct regulator_consumer_supply igep2_vmmc2_supply = {
.supply = "vmmc",
};
/* VMMC1 for OMAP VDD_MMC1 (i/o) and MMC1 card */
static struct regulator_init_data igep2_vmmc1 = {
.constraints = {
.min_uV = 1850000,
.max_uV = 3150000,
.valid_modes_mask = REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
| REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = 1,
.consumer_supplies = &igep2_vmmc1_supply,
};
/* VMMC2 for OMAP VDD_MMC2 (i/o) and MMC2 WIFI */
static struct regulator_init_data igep2_vmmc2 = {
.constraints = {
.min_uV = 1850000,
.max_uV = 3150000,
.valid_modes_mask = REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
| REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = 1,
.consumer_supplies = &igep2_vmmc2_supply,
};
static struct omap2_hsmmc_info mmc[] = {
{
.mmc = 1,
.caps = MMC_CAP_4_BIT_DATA,
.gpio_cd = -EINVAL,
.gpio_wp = -EINVAL,
},
{
.mmc = 2,
.caps = MMC_CAP_4_BIT_DATA,
.gpio_cd = -EINVAL,
.gpio_wp = -EINVAL,
},
{} /* Terminator */
};
#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
#include <linux/leds.h>
static struct gpio_led igep2_gpio_leds[] = {
[0] = {
.name = "gpio-led:red:d0",
.gpio = IGEP2_GPIO_LED0_RED,
.default_trigger = "default-off"
},
[1] = {
.name = "gpio-led:green:d0",
.gpio = IGEP2_GPIO_LED0_GREEN,
.default_trigger = "default-off",
},
[2] = {
.name = "gpio-led:red:d1",
.gpio = IGEP2_GPIO_LED1_RED,
.default_trigger = "default-off",
},
[3] = {
.name = "gpio-led:green:d1",
.default_trigger = "heartbeat",
.gpio = -EINVAL, /* gets replaced */
},
};
static struct gpio_led_platform_data igep2_led_pdata = {
.leds = igep2_gpio_leds,
.num_leds = ARRAY_SIZE(igep2_gpio_leds),
};
static struct platform_device igep2_led_device = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &igep2_led_pdata,
},
};
static void __init igep2_leds_init(void)
{
platform_device_register(&igep2_led_device);
}
#else
static inline void igep2_leds_init(void)
{
if ((gpio_request(IGEP2_GPIO_LED0_RED, "gpio-led:red:d0") == 0) &&
(gpio_direction_output(IGEP2_GPIO_LED0_RED, 1) == 0)) {
gpio_export(IGEP2_GPIO_LED0_RED, 0);
gpio_set_value(IGEP2_GPIO_LED0_RED, 0);
} else
pr_warning("IGEP v2: Could not obtain gpio GPIO_LED0_RED\n");
if ((gpio_request(IGEP2_GPIO_LED0_GREEN, "gpio-led:green:d0") == 0) &&
(gpio_direction_output(IGEP2_GPIO_LED0_GREEN, 1) == 0)) {
gpio_export(IGEP2_GPIO_LED0_GREEN, 0);
gpio_set_value(IGEP2_GPIO_LED0_GREEN, 0);
} else
pr_warning("IGEP v2: Could not obtain gpio GPIO_LED0_GREEN\n");
if ((gpio_request(IGEP2_GPIO_LED1_RED, "gpio-led:red:d1") == 0) &&
(gpio_direction_output(IGEP2_GPIO_LED1_RED, 1) == 0)) {
gpio_export(IGEP2_GPIO_LED1_RED, 0);
gpio_set_value(IGEP2_GPIO_LED1_RED, 0);
} else
pr_warning("IGEP v2: Could not obtain gpio GPIO_LED1_RED\n");
}
#endif
static int igep2_twl_gpio_setup(struct device *dev,
unsigned gpio, unsigned ngpio)
{
/* gpio + 0 is "mmc0_cd" (input/IRQ) */
mmc[0].gpio_cd = gpio + 0;
omap2_hsmmc_init(mmc);
/* link regulators to MMC adapters ... we "know" the
* regulators will be set up only *after* we return.
*/
igep2_vmmc1_supply.dev = mmc[0].dev;
igep2_vmmc2_supply.dev = mmc[1].dev;
/*
* REVISIT: need ehci-omap hooks for external VBUS
* power switch and overcurrent detect
*/
if ((gpio_request(gpio + 1, "GPIO_EHCI_NOC") < 0) ||
(gpio_direction_input(gpio + 1) < 0))
pr_err("IGEP2: Could not obtain gpio for EHCI NOC");
/*
* TWL4030_GPIO_MAX + 0 == ledA, GPIO_USBH_CPEN
* (out, active low)
*/
if ((gpio_request(gpio + TWL4030_GPIO_MAX, "GPIO_USBH_CPEN") < 0) ||
(gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0) < 0))
pr_err("IGEP2: Could not obtain gpio for USBH_CPEN");
/* TWL4030_GPIO_MAX + 1 == ledB (out, active low LED) */
#if !defined(CONFIG_LEDS_GPIO) && !defined(CONFIG_LEDS_GPIO_MODULE)
if ((gpio_request(gpio+TWL4030_GPIO_MAX+1, "gpio-led:green:d1") == 0)
&& (gpio_direction_output(gpio + TWL4030_GPIO_MAX + 1, 1) == 0)) {
gpio_export(gpio + TWL4030_GPIO_MAX + 1, 0);
gpio_set_value(gpio + TWL4030_GPIO_MAX + 1, 0);
} else
pr_warning("IGEP v2: Could not obtain gpio GPIO_LED1_GREEN\n");
#else
igep2_gpio_leds[3].gpio = gpio + TWL4030_GPIO_MAX + 1;
#endif
return 0;
};
static struct twl4030_gpio_platform_data igep2_twl4030_gpio_pdata = {
.gpio_base = OMAP_MAX_GPIO_LINES,
.irq_base = TWL4030_GPIO_IRQ_BASE,
.irq_end = TWL4030_GPIO_IRQ_END,
.use_leds = true,
.setup = igep2_twl_gpio_setup,
};
static struct twl4030_usb_data igep2_usb_data = {
.usb_mode = T2_USB_MODE_ULPI,
};
static int igep2_enable_dvi(struct omap_dss_device *dssdev)
{
gpio_direction_output(IGEP2_GPIO_DVI_PUP, 1);
return 0;
}
static void igep2_disable_dvi(struct omap_dss_device *dssdev)
{
gpio_direction_output(IGEP2_GPIO_DVI_PUP, 0);
}
static struct omap_dss_device igep2_dvi_device = {
.type = OMAP_DISPLAY_TYPE_DPI,
.name = "dvi",
.driver_name = "generic_panel",
.phy.dpi.data_lines = 24,
.platform_enable = igep2_enable_dvi,
.platform_disable = igep2_disable_dvi,
};
static struct omap_dss_device *igep2_dss_devices[] = {
&igep2_dvi_device
};
static struct omap_dss_board_info igep2_dss_data = {
.num_devices = ARRAY_SIZE(igep2_dss_devices),
.devices = igep2_dss_devices,
.default_device = &igep2_dvi_device,
};
static struct platform_device igep2_dss_device = {
.name = "omapdss",
.id = -1,
.dev = {
.platform_data = &igep2_dss_data,
},
};
static struct regulator_consumer_supply igep2_vpll2_supply = {
.supply = "vdds_dsi",
.dev = &igep2_dss_device.dev,
};
static struct regulator_init_data igep2_vpll2 = {
.constraints = {
.name = "VDVI",
.min_uV = 1800000,
.max_uV = 1800000,
.apply_uV = true,
.valid_modes_mask = REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY,
.valid_ops_mask = REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = 1,
.consumer_supplies = &igep2_vpll2_supply,
};
static void __init igep2_display_init(void)
{
if (gpio_request(IGEP2_GPIO_DVI_PUP, "GPIO_DVI_PUP") &&
gpio_direction_output(IGEP2_GPIO_DVI_PUP, 1))
pr_err("IGEP v2: Could not obtain gpio GPIO_DVI_PUP\n");
}
static struct platform_device *igep2_devices[] __initdata = {
&igep2_dss_device,
};
static void __init igep2_init_irq(void)
{
omap_board_config = igep2_config;
omap_board_config_size = ARRAY_SIZE(igep2_config);
omap2_init_common_hw(m65kxxxxam_sdrc_params, m65kxxxxam_sdrc_params);
omap_init_irq();
omap_gpio_init();
}
static struct twl4030_codec_audio_data igep2_audio_data = {
.audio_mclk = 26000000,
};
static struct twl4030_codec_data igep2_codec_data = {
.audio_mclk = 26000000,
.audio = &igep2_audio_data,
};
static struct twl4030_platform_data igep2_twldata = {
.irq_base = TWL4030_IRQ_BASE,
.irq_end = TWL4030_IRQ_END,
/* platform_data for children goes here */
.usb = &igep2_usb_data,
.codec = &igep2_codec_data,
.gpio = &igep2_twl4030_gpio_pdata,
.vmmc1 = &igep2_vmmc1,
.vmmc2 = &igep2_vmmc2,
.vpll2 = &igep2_vpll2,
};
static struct i2c_board_info __initdata igep2_i2c_boardinfo[] = {
{
I2C_BOARD_INFO("twl4030", 0x48),
.flags = I2C_CLIENT_WAKE,
.irq = INT_34XX_SYS_NIRQ,
.platform_data = &igep2_twldata,
},
};
static int __init igep2_i2c_init(void)
{
omap_register_i2c_bus(1, 2600, igep2_i2c_boardinfo,
ARRAY_SIZE(igep2_i2c_boardinfo));
/* Bus 3 is attached to the DVI port where devices like the pico DLP
* projector don't work reliably with 400kHz */
omap_register_i2c_bus(3, 100, NULL, 0);
return 0;
}
static struct omap_musb_board_data musb_board_data = {
.interface_type = MUSB_INTERFACE_ULPI,
.mode = MUSB_OTG,
.power = 100,
};
static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
.port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
.port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
.port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
.phy_reset = true,
.reset_gpio_port[0] = IGEP2_GPIO_USBH_NRESET,
.reset_gpio_port[1] = -EINVAL,
.reset_gpio_port[2] = -EINVAL,
};
#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
{ .reg_offset = OMAP_MUX_TERMINATOR },
};
#else
#define board_mux NULL
#endif
static void __init igep2_init(void)
{
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
/* Get IGEP2 hardware revision */
igep2_get_revision();
igep2_i2c_init();
platform_add_devices(igep2_devices, ARRAY_SIZE(igep2_devices));
omap_serial_init();
usb_musb_init(&musb_board_data);
usb_ehci_init(&ehci_pdata);
igep2_flash_init();
igep2_leds_init();
igep2_display_init();
igep2_init_smsc911x();
/* GPIO W-LAN + Bluetooth combo module */
if ((gpio_request(IGEP2_GPIO_WIFI_NPD, "GPIO_WIFI_NPD") == 0) &&
(gpio_direction_output(IGEP2_GPIO_WIFI_NPD, 1) == 0)) {
gpio_export(IGEP2_GPIO_WIFI_NPD, 0);
/* gpio_set_value(IGEP2_GPIO_WIFI_NPD, 0); */
} else
pr_warning("IGEP v2: Could not obtain gpio GPIO_WIFI_NPD\n");
if ((gpio_request(IGEP2_GPIO_WIFI_NRESET, "GPIO_WIFI_NRESET") == 0) &&
(gpio_direction_output(IGEP2_GPIO_WIFI_NRESET, 1) == 0)) {
gpio_export(IGEP2_GPIO_WIFI_NRESET, 0);
gpio_set_value(IGEP2_GPIO_WIFI_NRESET, 0);
udelay(10);
gpio_set_value(IGEP2_GPIO_WIFI_NRESET, 1);
} else
pr_warning("IGEP v2: Could not obtain gpio GPIO_WIFI_NRESET\n");
}
MACHINE_START(IGEP0020, "IGEP v2 board")
.phys_io = 0x48000000,
.io_pg_offst = ((0xfa000000) >> 18) & 0xfffc,
.boot_params = 0x80000100,
.map_io = omap3_map_io,
.reserve = omap_reserve,
.init_irq = igep2_init_irq,
.init_machine = igep2_init,
.timer = &omap_timer,
MACHINE_END
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