ARM OMAP3: Initial support for Nokia RX-51, v3

Adds board files and related headers for Nokia RX-51
Internet Tablet.

This patch has been updated with some clean-up patches
posted earlier to linux-omap list.

Signed-off-by: Lauri Leukkunen <lauri.leukkunen@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 419 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
new file mode 100644
index 00000000000..a7381729645
--- /dev/null
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -0,0 +1,419 @@
+/*
+ * linux/arch/arm/mach-omap2/board-rx51-flash.c
+ *
+ * Copyright (C) 2008-2009 Nokia
+ *
+ * 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/input.h>
+#include <linux/spi/spi.h>
+#include <linux/i2c.h>
+#include <linux/i2c/twl4030.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/regulator/machine.h>
+#include <linux/gpio.h>
+
+#include <mach/mcspi.h>
+#include <mach/mux.h>
+#include <mach/board.h>
+#include <mach/common.h>
+#include <mach/dma.h>
+#include <mach/gpmc.h>
+#include <mach/keypad.h>
+
+#include "mmc-twl4030.h"
+
+
+#define SMC91X_CS                       1
+#define SMC91X_GPIO_IRQ                 54
+#define SMC91X_GPIO_RESET               164
+#define SMC91X_GPIO_PWRDWN              86
+
+static struct resource rx51_smc91x_resources[] = {
+        [0] = {
+                .flags          = IORESOURCE_MEM,
+        },
+        [1] = {
+                .flags          = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
+        },
+};
+
+static struct platform_device rx51_smc91x_device = {
+        .name           = "smc91x",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(rx51_smc91x_resources),
+        .resource       = rx51_smc91x_resources,
+};
+
+static int rx51_keymap[] = {
+        KEY(0, 0, KEY_Q),
+        KEY(0, 1, KEY_W),
+        KEY(0, 2, KEY_E),
+        KEY(0, 3, KEY_R),
+        KEY(0, 4, KEY_T),
+        KEY(0, 5, KEY_Y),
+        KEY(0, 6, KEY_U),
+        KEY(0, 7, KEY_I),
+        KEY(1, 0, KEY_O),
+        KEY(1, 1, KEY_D),
+        KEY(1, 2, KEY_DOT),
+        KEY(1, 3, KEY_V),
+        KEY(1, 4, KEY_DOWN),
+        KEY(2, 0, KEY_P),
+        KEY(2, 1, KEY_F),
+        KEY(2, 2, KEY_UP),
+        KEY(2, 3, KEY_B),
+        KEY(2, 4, KEY_RIGHT),
+        KEY(3, 0, KEY_COMMA),
+        KEY(3, 1, KEY_G),
+        KEY(3, 2, KEY_ENTER),
+        KEY(3, 3, KEY_N),
+        KEY(4, 0, KEY_BACKSPACE),
+        KEY(4, 1, KEY_H),
+        KEY(4, 3, KEY_M),
+        KEY(4, 4, KEY_LEFTCTRL),
+        KEY(5, 1, KEY_J),
+        KEY(5, 2, KEY_Z),
+        KEY(5, 3, KEY_SPACE),
+        KEY(5, 4, KEY_LEFTSHIFT),
+        KEY(6, 0, KEY_A),
+        KEY(6, 1, KEY_K),
+        KEY(6, 2, KEY_X),
+        KEY(6, 3, KEY_SPACE),
+        KEY(6, 4, KEY_FN),
+        KEY(7, 0, KEY_S),
+        KEY(7, 1, KEY_L),
+        KEY(7, 2, KEY_C),
+        KEY(7, 3, KEY_LEFT),
+        KEY(0xff, 0, KEY_F6),
+        KEY(0xff, 1, KEY_F7),
+        KEY(0xff, 2, KEY_F8),
+        KEY(0xff, 4, KEY_F9),
+        KEY(0xff, 5, KEY_F10),
+};
+
+static struct twl4030_keypad_data rx51_kp_data = {
+        .rows           = 8,
+        .cols           = 8,
+        .keymap         = rx51_keymap,
+        .keymapsize     = ARRAY_SIZE(rx51_keymap),
+        .rep            = 1,
+};
+
+static struct platform_device *rx51_peripherals_devices[] = {
+        &rx51_smc91x_device,
+};
+
+/*
+ * Timings are taken from smsc-lan91c96-ms.pdf
+ */
+static int smc91x_init_gpmc(int cs)
+{
+        struct gpmc_timings t;
+        const int t2_r = 45;            /* t2 in Figure 12.10 */
+        const int t2_w = 30;            /* t2 in Figure 12.11 */
+        const int t3 = 15;              /* t3 in Figure 12.10 */
+        const int t5_r = 0;             /* t5 in Figure 12.10 */
+        const int t6_r = 45;            /* t6 in Figure 12.10 */
+        const int t6_w = 0;             /* t6 in Figure 12.11 */
+        const int t7_w = 15;            /* t7 in Figure 12.11 */
+        const int t15 = 12;             /* t15 in Figure 12.2 */
+        const int t20 = 185;            /* t20 in Figure 12.2 */
+
+        memset(&t, 0, sizeof(t));
+
+        t.cs_on = t15;
+        t.cs_rd_off = t3 + t2_r + t5_r; /* Figure 12.10 */
+        t.cs_wr_off = t3 + t2_w + t6_w; /* Figure 12.11 */
+        t.adv_on = t3;                  /* Figure 12.10 */
+        t.adv_rd_off = t3 + t2_r;       /* Figure 12.10 */
+        t.adv_wr_off = t3 + t2_w;       /* Figure 12.11 */
+        t.oe_off = t3 + t2_r + t5_r;    /* Figure 12.10 */
+        t.oe_on = t.oe_off - t6_r;      /* Figure 12.10 */
+        t.we_off = t3 + t2_w + t6_w;    /* Figure 12.11 */
+        t.we_on = t.we_off - t7_w;      /* Figure 12.11 */
+        t.rd_cycle = t20;               /* Figure 12.2 */
+        t.wr_cycle = t20;               /* Figure 12.4 */
+        t.access = t3 + t2_r + t5_r;    /* Figure 12.10 */
+        t.wr_access = t3 + t2_w + t6_w; /* Figure 12.11 */
+
+        gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, GPMC_CONFIG1_DEVICESIZE_16);
+
+        return gpmc_cs_set_timings(cs, &t);
+}
+
+static void __init rx51_init_smc91x(void)
+{
+        unsigned long cs_mem_base;
+        int ret;
+
+        omap_cfg_reg(U8_34XX_GPIO54_DOWN);
+        omap_cfg_reg(G25_34XX_GPIO86_OUT);
+        omap_cfg_reg(H19_34XX_GPIO164_OUT);
+
+        if (gpmc_cs_request(SMC91X_CS, SZ_16M, &cs_mem_base) < 0) {
+                printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
+                return;
+        }
+
+        rx51_smc91x_resources[0].start = cs_mem_base + 0x300;
+        rx51_smc91x_resources[0].end = cs_mem_base + 0x30f;
+
+        smc91x_init_gpmc(SMC91X_CS);
+
+        if (gpio_request(SMC91X_GPIO_IRQ, "SMC91X irq") < 0)
+                goto free1;
+
+        gpio_direction_input(SMC91X_GPIO_IRQ);
+        rx51_smc91x_resources[1].start = gpio_to_irq(SMC91X_GPIO_IRQ);
+
+        ret = gpio_request(SMC91X_GPIO_PWRDWN, "SMC91X powerdown");
+        if (ret)
+                goto free2;
+        gpio_direction_output(SMC91X_GPIO_PWRDWN, 0);
+
+        ret = gpio_request(SMC91X_GPIO_RESET, "SMC91X reset");
+        if (ret)
+                goto free3;
+        gpio_direction_output(SMC91X_GPIO_RESET, 0);
+        gpio_set_value(SMC91X_GPIO_RESET, 1);
+        msleep(100);
+        gpio_set_value(SMC91X_GPIO_RESET, 0);
+
+        return;
+
+free3:
+        gpio_free(SMC91X_GPIO_PWRDWN);
+free2:
+        gpio_free(SMC91X_GPIO_IRQ);
+free1:
+        gpmc_cs_free(SMC91X_CS);
+
+        printk(KERN_ERR "Could not initialize smc91x\n");
+}
+
+static struct twl4030_madc_platform_data rx51_madc_data = {
+        .irq_line               = 1,
+};
+
+static struct twl4030_hsmmc_info mmc[] = {
+        {
+                .name           = "external",
+                .mmc            = 1,
+                .wires          = 4,
+                .cover_only     = true,
+                .gpio_cd        = 160,
+                .gpio_wp        = -EINVAL,
+        },
+        {
+                .name           = "internal",
+                .mmc            = 2,
+                .wires          = 8,
+                .gpio_cd        = -EINVAL,
+                .gpio_wp        = -EINVAL,
+        },
+        {}      /* Terminator */
+};
+
+static struct regulator_consumer_supply rx51_vmmc1_supply = {
+        .supply                 = "vmmc",
+};
+
+static struct regulator_consumer_supply rx51_vmmc2_supply = {
+        .supply                 = "vmmc",
+};
+
+static struct regulator_consumer_supply rx51_vsim_supply = {
+        .supply                 = "vmmc_aux",
+};
+
+static struct regulator_init_data rx51_vaux1 = {
+        .constraints = {
+                .name                   = "V28",
+                .min_uV                 = 2800000,
+                .max_uV                 = 2800000,
+                .valid_modes_mask       = REGULATOR_MODE_NORMAL
+                                        | REGULATOR_MODE_STANDBY,
+                .valid_ops_mask         = REGULATOR_CHANGE_MODE
+                                        | REGULATOR_CHANGE_STATUS,
+        },
+};
+
+static struct regulator_init_data rx51_vaux2 = {
+        .constraints = {
+                .name                   = "VCSI",
+                .min_uV                 = 1800000,
+                .max_uV                 = 1800000,
+                .valid_modes_mask       = REGULATOR_MODE_NORMAL
+                                        | REGULATOR_MODE_STANDBY,
+                .valid_ops_mask         = REGULATOR_CHANGE_MODE
+                                        | REGULATOR_CHANGE_STATUS,
+        },
+};
+
+/* VAUX3 - adds more power to VIO_18 rail */
+static struct regulator_init_data rx51_vaux3 = {
+        .constraints = {
+                .name                   = "VCAM_DIG_18",
+                .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,
+        },
+};
+
+static struct regulator_init_data rx51_vaux4 = {
+        .constraints = {
+                .name                   = "VCAM_ANA_28",
+                .min_uV                 = 2800000,
+                .max_uV                 = 2800000,
+                .apply_uV               = true,
+                .valid_modes_mask       = REGULATOR_MODE_NORMAL
+                                        | REGULATOR_MODE_STANDBY,
+                .valid_ops_mask         = REGULATOR_CHANGE_MODE
+                                        | REGULATOR_CHANGE_STATUS,
+        },
+};
+
+static struct regulator_init_data rx51_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      = &rx51_vmmc1_supply,
+};
+
+static struct regulator_init_data rx51_vmmc2 = {
+        .constraints = {
+                .name                   = "VMMC2_30",
+                .min_uV                 = 1850000,
+                .max_uV                 = 3150000,
+                .apply_uV               = true,
+                .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      = &rx51_vmmc2_supply,
+};
+
+static struct regulator_init_data rx51_vsim = {
+        .constraints = {
+                .name                   = "VMMC2_IO_18",
+                .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      = &rx51_vsim_supply,
+};
+
+static struct regulator_init_data rx51_vdac = {
+        .constraints = {
+                .min_uV                 = 1800000,
+                .max_uV                 = 1800000,
+                .valid_modes_mask       = REGULATOR_MODE_NORMAL
+                                        | REGULATOR_MODE_STANDBY,
+                .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
+                                        | REGULATOR_CHANGE_MODE
+                                        | REGULATOR_CHANGE_STATUS,
+        },
+};
+
+static int rx51_twlgpio_setup(struct device *dev, unsigned gpio, unsigned n)
+{
+        /* FIXME this gpio setup is just a placeholder for now */
+        gpio_request(gpio + 6, "backlight_pwm");
+        gpio_direction_output(gpio + 6, 0);
+        gpio_request(gpio + 7, "speaker_en");
+        gpio_direction_output(gpio + 7, 1);
+
+        /* set up MMC adapters, linking their regulators to them */
+        twl4030_mmc_init(mmc);
+        rx51_vmmc1_supply.dev = mmc[0].dev;
+        rx51_vmmc2_supply.dev = mmc[1].dev;
+        rx51_vsim_supply.dev = mmc[1].dev;
+
+        return 0;
+}
+
+static struct twl4030_gpio_platform_data rx51_gpio_data = {
+        .gpio_base              = OMAP_MAX_GPIO_LINES,
+        .irq_base               = TWL4030_GPIO_IRQ_BASE,
+        .irq_end                = TWL4030_GPIO_IRQ_END,
+        .pulldowns              = BIT(0) | BIT(1) | BIT(2) | BIT(3)
+                                | BIT(4) | BIT(5)
+                                | BIT(8) | BIT(9) | BIT(10) | BIT(11)
+                                | BIT(12) | BIT(13) | BIT(14) | BIT(15)
+                                | BIT(16) | BIT(17) ,
+        .setup                  = rx51_twlgpio_setup,
+};
+
+static struct twl4030_platform_data rx51_twldata = {
+        .irq_base               = TWL4030_IRQ_BASE,
+        .irq_end                = TWL4030_IRQ_END,
+
+        /* platform_data for children goes here */
+        .gpio                   = &rx51_gpio_data,
+        .keypad                 = &rx51_kp_data,
+        .madc                   = &rx51_madc_data,
+
+        .vaux1                  = &rx51_vaux1,
+        .vaux2                  = &rx51_vaux2,
+        .vaux3                  = &rx51_vaux3,
+        .vaux4                  = &rx51_vaux4,
+        .vmmc1                  = &rx51_vmmc1,
+        .vmmc2                  = &rx51_vmmc2,
+        .vsim                   = &rx51_vsim,
+        .vdac                   = &rx51_vdac,
+};
+
+static struct i2c_board_info __initdata rx51_peripherals_i2c_board_info_1[] = {
+        {
+                I2C_BOARD_INFO("twl5030", 0x48),
+                .flags = I2C_CLIENT_WAKE,
+                .irq = INT_34XX_SYS_NIRQ,
+                .platform_data = &rx51_twldata,
+        },
+};
+
+static int __init rx51_i2c_init(void)
+{
+        omap_register_i2c_bus(1, 2600, rx51_peripherals_i2c_board_info_1,
+                        ARRAY_SIZE(rx51_peripherals_i2c_board_info_1));
+        omap_register_i2c_bus(2, 100, NULL, 0);
+        omap_register_i2c_bus(3, 400, NULL, 0);
+        return 0;
+}
+
+
+void __init rx51_peripherals_init(void)
+{
+        platform_add_devices(rx51_peripherals_devices,
+                                ARRAY_SIZE(rx51_peripherals_devices));
+        rx51_i2c_init();
+        rx51_init_smc91x();
+}
+