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authorAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
committerAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
commitb4b6116a13633898cf868f2f103c96a90c4c20f8 (patch)
tree93d1b7e2cfcdf473d8d4ff3ad141fa864f8491f6 /arch/arm/mach-omap2/board-omap3beagle.c
parentedd4be777c953e5faafc80d091d3084b4343f5d3 (diff)
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fedora kernel: d9aad82f3319f3cfd1aebc01234254ef0c37ad84v3.3.2-1
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/arm/mach-omap2/board-omap3beagle.c')
-rw-r--r--arch/arm/mach-omap2/board-omap3beagle.c566
1 files changed, 566 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
new file mode 100644
index 00000000000..7ffcd2839e7
--- /dev/null
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -0,0 +1,566 @@
+/*
+ * linux/arch/arm/mach-omap2/board-omap3beagle.c
+ *
+ * Copyright (C) 2008 Texas Instruments
+ *
+ * Modified from mach-omap2/board-3430sdp.c
+ *
+ * Initial code: Syed Mohammed Khasim
+ *
+ * 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/leds.h>
+#include <linux/gpio.h>
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+#include <linux/opp.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand.h>
+#include <linux/mmc/host.h>
+
+#include <linux/regulator/machine.h>
+#include <linux/i2c/twl.h>
+
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/flash.h>
+
+#include <plat/board.h>
+#include "common.h"
+#include <video/omapdss.h>
+#include <video/omap-panel-dvi.h>
+#include <plat/gpmc.h>
+#include <plat/nand.h>
+#include <plat/usb.h>
+#include <plat/omap_device.h>
+
+#include "mux.h"
+#include "hsmmc.h"
+#include "pm.h"
+#include "common-board-devices.h"
+
+/*
+ * OMAP3 Beagle revision
+ * Run time detection of Beagle revision is done by reading GPIO.
+ * GPIO ID -
+ * AXBX = GPIO173, GPIO172, GPIO171: 1 1 1
+ * C1_3 = GPIO173, GPIO172, GPIO171: 1 1 0
+ * C4 = GPIO173, GPIO172, GPIO171: 1 0 1
+ * XMA/XMB = GPIO173, GPIO172, GPIO171: 0 0 0
+ * XMC = GPIO173, GPIO172, GPIO171: 0 1 0
+ */
+enum {
+ OMAP3BEAGLE_BOARD_UNKN = 0,
+ OMAP3BEAGLE_BOARD_AXBX,
+ OMAP3BEAGLE_BOARD_C1_3,
+ OMAP3BEAGLE_BOARD_C4,
+ OMAP3BEAGLE_BOARD_XM,
+ OMAP3BEAGLE_BOARD_XMC,
+};
+
+static u8 omap3_beagle_version;
+
+/*
+ * Board-specific configuration
+ * Defaults to BeagleBoard-xMC
+ */
+static struct {
+ int mmc1_gpio_wp;
+ int usb_pwr_level;
+ int reset_gpio;
+ int usr_button_gpio;
+} beagle_config = {
+ .mmc1_gpio_wp = -EINVAL,
+ .usb_pwr_level = GPIOF_OUT_INIT_LOW,
+ .reset_gpio = 129,
+ .usr_button_gpio = 4,
+};
+
+static struct gpio omap3_beagle_rev_gpios[] __initdata = {
+ { 171, GPIOF_IN, "rev_id_0" },
+ { 172, GPIOF_IN, "rev_id_1" },
+ { 173, GPIOF_IN, "rev_id_2" },
+};
+
+static void __init omap3_beagle_init_rev(void)
+{
+ int ret;
+ u16 beagle_rev = 0;
+
+ omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP);
+ omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP);
+ omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP);
+
+ ret = gpio_request_array(omap3_beagle_rev_gpios,
+ ARRAY_SIZE(omap3_beagle_rev_gpios));
+ if (ret < 0) {
+ printk(KERN_ERR "Unable to get revision detection GPIO pins\n");
+ omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
+ return;
+ }
+
+ beagle_rev = gpio_get_value(171) | (gpio_get_value(172) << 1)
+ | (gpio_get_value(173) << 2);
+
+ gpio_free_array(omap3_beagle_rev_gpios,
+ ARRAY_SIZE(omap3_beagle_rev_gpios));
+
+ switch (beagle_rev) {
+ case 7:
+ printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n");
+ omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX;
+ beagle_config.mmc1_gpio_wp = 29;
+ beagle_config.reset_gpio = 170;
+ beagle_config.usr_button_gpio = 7;
+ break;
+ case 6:
+ printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n");
+ omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3;
+ beagle_config.mmc1_gpio_wp = 23;
+ beagle_config.reset_gpio = 170;
+ beagle_config.usr_button_gpio = 7;
+ break;
+ case 5:
+ printk(KERN_INFO "OMAP3 Beagle Rev: C4\n");
+ omap3_beagle_version = OMAP3BEAGLE_BOARD_C4;
+ beagle_config.mmc1_gpio_wp = 23;
+ beagle_config.reset_gpio = 170;
+ beagle_config.usr_button_gpio = 7;
+ break;
+ case 0:
+ printk(KERN_INFO "OMAP3 Beagle Rev: xM Ax/Bx\n");
+ omap3_beagle_version = OMAP3BEAGLE_BOARD_XM;
+ beagle_config.usb_pwr_level = GPIOF_OUT_INIT_HIGH;
+ break;
+ case 2:
+ printk(KERN_INFO "OMAP3 Beagle Rev: xM C\n");
+ omap3_beagle_version = OMAP3BEAGLE_BOARD_XMC;
+ break;
+ default:
+ printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev);
+ omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
+ }
+}
+
+static struct mtd_partition omap3beagle_nand_partitions[] = {
+ /* All the partition sizes are listed in terms of NAND block size */
+ {
+ .name = "X-Loader",
+ .offset = 0,
+ .size = 4 * NAND_BLOCK_SIZE,
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ },
+ {
+ .name = "U-Boot",
+ .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
+ .size = 15 * NAND_BLOCK_SIZE,
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ },
+ {
+ .name = "U-Boot Env",
+ .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
+ .size = 1 * NAND_BLOCK_SIZE,
+ },
+ {
+ .name = "Kernel",
+ .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
+ .size = 32 * NAND_BLOCK_SIZE,
+ },
+ {
+ .name = "File System",
+ .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
+ .size = MTDPART_SIZ_FULL,
+ },
+};
+
+/* DSS */
+
+static int beagle_enable_dvi(struct omap_dss_device *dssdev)
+{
+ if (gpio_is_valid(dssdev->reset_gpio))
+ gpio_set_value(dssdev->reset_gpio, 1);
+
+ return 0;
+}
+
+static void beagle_disable_dvi(struct omap_dss_device *dssdev)
+{
+ if (gpio_is_valid(dssdev->reset_gpio))
+ gpio_set_value(dssdev->reset_gpio, 0);
+}
+
+static struct panel_dvi_platform_data dvi_panel = {
+ .platform_enable = beagle_enable_dvi,
+ .platform_disable = beagle_disable_dvi,
+ .i2c_bus_num = 3,
+};
+
+static struct omap_dss_device beagle_dvi_device = {
+ .type = OMAP_DISPLAY_TYPE_DPI,
+ .name = "dvi",
+ .driver_name = "dvi",
+ .data = &dvi_panel,
+ .phy.dpi.data_lines = 24,
+ .reset_gpio = -EINVAL,
+};
+
+static struct omap_dss_device beagle_tv_device = {
+ .name = "tv",
+ .driver_name = "venc",
+ .type = OMAP_DISPLAY_TYPE_VENC,
+ .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
+};
+
+static struct omap_dss_device *beagle_dss_devices[] = {
+ &beagle_dvi_device,
+ &beagle_tv_device,
+};
+
+static struct omap_dss_board_info beagle_dss_data = {
+ .num_devices = ARRAY_SIZE(beagle_dss_devices),
+ .devices = beagle_dss_devices,
+ .default_device = &beagle_dvi_device,
+};
+
+static void __init beagle_display_init(void)
+{
+ int r;
+
+ r = gpio_request_one(beagle_dvi_device.reset_gpio, GPIOF_OUT_INIT_LOW,
+ "DVI reset");
+ if (r < 0)
+ printk(KERN_ERR "Unable to get DVI reset GPIO\n");
+}
+
+#include "sdram-micron-mt46h32m32lf-6.h"
+
+static struct omap2_hsmmc_info mmc[] = {
+ {
+ .mmc = 1,
+ .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
+ .gpio_wp = -EINVAL,
+ },
+ {} /* Terminator */
+};
+
+static struct regulator_consumer_supply beagle_vmmc1_supply[] = {
+ REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
+};
+
+static struct regulator_consumer_supply beagle_vsim_supply[] = {
+ REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
+};
+
+static struct gpio_led gpio_leds[];
+
+static int beagle_twl_gpio_setup(struct device *dev,
+ unsigned gpio, unsigned ngpio)
+{
+ int r;
+
+ if (beagle_config.mmc1_gpio_wp != -EINVAL)
+ omap_mux_init_gpio(beagle_config.mmc1_gpio_wp, OMAP_PIN_INPUT);
+ mmc[0].gpio_wp = beagle_config.mmc1_gpio_wp;
+ /* gpio + 0 is "mmc0_cd" (input/IRQ) */
+ mmc[0].gpio_cd = gpio + 0;
+ omap2_hsmmc_init(mmc);
+
+ /*
+ * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
+ * high / others active low)
+ * DVI reset GPIO is different between beagle revisions
+ */
+ /* Valid for all -xM revisions */
+ if (cpu_is_omap3630()) {
+ /*
+ * gpio + 1 on Xm controls the TFP410's enable line (active low)
+ * gpio + 2 control varies depending on the board rev as below:
+ * P7/P8 revisions(prototype): Camera EN
+ * A2+ revisions (production): LDO (DVI, serial, led blocks)
+ */
+ r = gpio_request_one(gpio + 1, GPIOF_OUT_INIT_LOW,
+ "nDVI_PWR_EN");
+ if (r)
+ pr_err("%s: unable to configure nDVI_PWR_EN\n",
+ __func__);
+ r = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH,
+ "DVI_LDO_EN");
+ if (r)
+ pr_err("%s: unable to configure DVI_LDO_EN\n",
+ __func__);
+ } else {
+ /*
+ * REVISIT: need ehci-omap hooks for external VBUS
+ * power switch and overcurrent detect
+ */
+ if (gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC"))
+ pr_err("%s: unable to configure EHCI_nOC\n", __func__);
+ }
+ beagle_dvi_device.reset_gpio = beagle_config.reset_gpio;
+
+ gpio_request_one(gpio + TWL4030_GPIO_MAX, beagle_config.usb_pwr_level,
+ "nEN_USB_PWR");
+
+ /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
+ gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
+
+ return 0;
+}
+
+static struct twl4030_gpio_platform_data beagle_gpio_data = {
+ .gpio_base = OMAP_MAX_GPIO_LINES,
+ .irq_base = TWL4030_GPIO_IRQ_BASE,
+ .irq_end = TWL4030_GPIO_IRQ_END,
+ .use_leds = true,
+ .pullups = BIT(1),
+ .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
+ | BIT(15) | BIT(16) | BIT(17),
+ .setup = beagle_twl_gpio_setup,
+};
+
+/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
+static struct regulator_init_data beagle_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 = ARRAY_SIZE(beagle_vmmc1_supply),
+ .consumer_supplies = beagle_vmmc1_supply,
+};
+
+/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
+static struct regulator_init_data beagle_vsim = {
+ .constraints = {
+ .min_uV = 1800000,
+ .max_uV = 3000000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL
+ | REGULATOR_MODE_STANDBY,
+ .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
+ | REGULATOR_CHANGE_MODE
+ | REGULATOR_CHANGE_STATUS,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(beagle_vsim_supply),
+ .consumer_supplies = beagle_vsim_supply,
+};
+
+static struct twl4030_platform_data beagle_twldata = {
+ /* platform_data for children goes here */
+ .gpio = &beagle_gpio_data,
+ .vmmc1 = &beagle_vmmc1,
+ .vsim = &beagle_vsim,
+};
+
+static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
+ {
+ I2C_BOARD_INFO("eeprom", 0x50),
+ },
+};
+
+static int __init omap3_beagle_i2c_init(void)
+{
+ omap3_pmic_get_config(&beagle_twldata,
+ TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_MADC |
+ TWL_COMMON_PDATA_AUDIO,
+ TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
+
+ beagle_twldata.vpll2->constraints.name = "VDVI";
+
+ omap3_pmic_init("twl4030", &beagle_twldata);
+ /* 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, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
+ return 0;
+}
+
+static struct gpio_led gpio_leds[] = {
+ {
+ .name = "beagleboard::usr0",
+ .default_trigger = "heartbeat",
+ .gpio = 150,
+ },
+ {
+ .name = "beagleboard::usr1",
+ .default_trigger = "mmc0",
+ .gpio = 149,
+ },
+ {
+ .name = "beagleboard::pmu_stat",
+ .gpio = -EINVAL, /* gets replaced */
+ .active_low = true,
+ },
+};
+
+static struct gpio_led_platform_data gpio_led_info = {
+ .leds = gpio_leds,
+ .num_leds = ARRAY_SIZE(gpio_leds),
+};
+
+static struct platform_device leds_gpio = {
+ .name = "leds-gpio",
+ .id = -1,
+ .dev = {
+ .platform_data = &gpio_led_info,
+ },
+};
+
+static struct gpio_keys_button gpio_buttons[] = {
+ {
+ .code = BTN_EXTRA,
+ /* Dynamically assigned depending on board */
+ .gpio = -EINVAL,
+ .desc = "user",
+ .wakeup = 1,
+ },
+};
+
+static struct gpio_keys_platform_data gpio_key_info = {
+ .buttons = gpio_buttons,
+ .nbuttons = ARRAY_SIZE(gpio_buttons),
+};
+
+static struct platform_device keys_gpio = {
+ .name = "gpio-keys",
+ .id = -1,
+ .dev = {
+ .platform_data = &gpio_key_info,
+ },
+};
+
+static struct platform_device madc_hwmon = {
+ .name = "twl4030_madc_hwmon",
+ .id = -1,
+};
+
+static struct platform_device *omap3_beagle_devices[] __initdata = {
+ &leds_gpio,
+ &keys_gpio,
+ &madc_hwmon,
+};
+
+static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
+
+ .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
+ .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
+ .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
+
+ .phy_reset = true,
+ .reset_gpio_port[0] = -EINVAL,
+ .reset_gpio_port[1] = 147,
+ .reset_gpio_port[2] = -EINVAL
+};
+
+#ifdef CONFIG_OMAP_MUX
+static struct omap_board_mux board_mux[] __initdata = {
+ { .reg_offset = OMAP_MUX_TERMINATOR },
+};
+#endif
+
+static void __init beagle_opp_init(void)
+{
+ int r = 0;
+
+ /* Initialize the omap3 opp table */
+ if (omap3_opp_init()) {
+ pr_err("%s: opp default init failed\n", __func__);
+ return;
+ }
+
+ /* Custom OPP enabled for all xM versions */
+ if (cpu_is_omap3630()) {
+ struct device *mpu_dev, *iva_dev;
+
+ mpu_dev = omap_device_get_by_hwmod_name("mpu");
+ iva_dev = omap_device_get_by_hwmod_name("iva");
+
+ if (!mpu_dev || !iva_dev) {
+ pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
+ __func__, mpu_dev, iva_dev);
+ return;
+ }
+ /* Enable MPU 1GHz and lower opps */
+ r = opp_enable(mpu_dev, 800000000);
+ /* TODO: MPU 1GHz needs SR and ABB */
+
+ /* Enable IVA 800MHz and lower opps */
+ r |= opp_enable(iva_dev, 660000000);
+ /* TODO: DSP 800MHz needs SR and ABB */
+ if (r) {
+ pr_err("%s: failed to enable higher opp %d\n",
+ __func__, r);
+ /*
+ * Cleanup - disable the higher freqs - we dont care
+ * about the results
+ */
+ opp_disable(mpu_dev, 800000000);
+ opp_disable(iva_dev, 660000000);
+ }
+ }
+ return;
+}
+
+static void __init omap3_beagle_init(void)
+{
+ omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
+ omap3_beagle_init_rev();
+ omap3_beagle_i2c_init();
+
+ gpio_buttons[0].gpio = beagle_config.usr_button_gpio;
+
+ platform_add_devices(omap3_beagle_devices,
+ ARRAY_SIZE(omap3_beagle_devices));
+ omap_display_init(&beagle_dss_data);
+ omap_serial_init();
+ omap_sdrc_init(mt46h32m32lf6_sdrc_params,
+ mt46h32m32lf6_sdrc_params);
+
+ omap_mux_init_gpio(170, OMAP_PIN_INPUT);
+ /* REVISIT leave DVI powered down until it's needed ... */
+ gpio_request_one(170, GPIOF_OUT_INIT_HIGH, "DVI_nPD");
+
+ usb_musb_init(NULL);
+ usbhs_init(&usbhs_bdata);
+ omap_nand_flash_init(NAND_BUSWIDTH_16, omap3beagle_nand_partitions,
+ ARRAY_SIZE(omap3beagle_nand_partitions));
+
+ /* Ensure msecure is mux'd to be able to set the RTC. */
+ omap_mux_init_signal("sys_drm_msecure", OMAP_PIN_OFF_OUTPUT_HIGH);
+
+ /* Ensure SDRC pins are mux'd for self-refresh */
+ omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
+ omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
+
+ beagle_display_init();
+ beagle_opp_init();
+}
+
+MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
+ /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
+ .atag_offset = 0x100,
+ .reserve = omap_reserve,
+ .map_io = omap3_map_io,
+ .init_early = omap3_init_early,
+ .init_irq = omap3_init_irq,
+ .handle_irq = omap3_intc_handle_irq,
+ .init_machine = omap3_beagle_init,
+ .timer = &omap3_secure_timer,
+ .restart = omap_prcm_restart,
+MACHINE_END