1 files changed, 267 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/board-ventana-sdhci.c b/arch/arm/mach-tegra/board-ventana-sdhci.c
new file mode 100644
index 00000000000..49720cd7a6d
--- /dev/null
+++ b/arch/arm/mach-tegra/board-ventana-sdhci.c
@@ -0,0 +1,267 @@
+/*
+ * arch/arm/mach-tegra/board-harmony-sdhci.c
+ *
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/resource.h>
+#include <linux/platform_device.h>
+#include <linux/wlan_plat.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/mmc/host.h>
+
+#include <asm/mach-types.h>
+#include <mach/irqs.h>
+#include <mach/iomap.h>
+#include <mach/sdhci.h>
+
+#include "gpio-names.h"
+#include "board.h"
+
+#define VENTANA_WLAN_PWR        TEGRA_GPIO_PK5
+#define VENTANA_WLAN_RST        TEGRA_GPIO_PK6
+#define VENTANA_WLAN_WOW        TEGRA_GPIO_PS0
+
+static void (*wifi_status_cb)(int card_present, void *dev_id);
+static void *wifi_status_cb_devid;
+static int ventana_wifi_status_register(void (*callback)(int , void *), void *);
+static struct clk *wifi_32k_clk;
+
+static int ventana_wifi_reset(int on);
+static int ventana_wifi_power(int on);
+static int ventana_wifi_set_carddetect(int val);
+
+static struct wifi_platform_data ventana_wifi_control = {
+        .set_power      = ventana_wifi_power,
+        .set_reset      = ventana_wifi_reset,
+        .set_carddetect = ventana_wifi_set_carddetect,
+};
+
+static struct resource wifi_resource[] = {
+        [0] = {
+                .name  = "bcm4329_wlan_irq",
+                .start = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PS0),
+                .end   = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PS0),
+                .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL | IORESOURCE_IRQ_SHAREABLE,
+        },
+};
+
+static struct platform_device ventana_wifi_device = {
+        .name           = "bcm4329_wlan",
+        .id             = 1,
+        .num_resources  = 1,
+        .resource       = wifi_resource,
+        .dev            = {
+                .platform_data = &ventana_wifi_control,
+        },
+};
+
+static struct resource sdhci_resource0[] = {
+        [0] = {
+                .start  = INT_SDMMC1,
+                .end    = INT_SDMMC1,
+                .flags  = IORESOURCE_IRQ,
+        },
+        [1] = {
+                .start  = TEGRA_SDMMC1_BASE,
+                .end    = TEGRA_SDMMC1_BASE + TEGRA_SDMMC1_SIZE-1,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static struct resource sdhci_resource2[] = {
+        [0] = {
+                .start  = INT_SDMMC3,
+                .end    = INT_SDMMC3,
+                .flags  = IORESOURCE_IRQ,
+        },
+        [1] = {
+                .start  = TEGRA_SDMMC3_BASE,
+                .end    = TEGRA_SDMMC3_BASE + TEGRA_SDMMC3_SIZE-1,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static struct resource sdhci_resource3[] = {
+        [0] = {
+                .start  = INT_SDMMC4,
+                .end    = INT_SDMMC4,
+                .flags  = IORESOURCE_IRQ,
+        },
+        [1] = {
+                .start  = TEGRA_SDMMC4_BASE,
+                .end    = TEGRA_SDMMC4_BASE + TEGRA_SDMMC4_SIZE-1,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static struct embedded_sdio_data embedded_sdio_data0 = {
+        .cccr   = {
+                .sdio_vsn       = 2,
+                .multi_block    = 1,
+                .low_speed      = 0,
+                .wide_bus       = 0,
+                .high_power     = 1,
+                .high_speed     = 1,
+        },
+        .cis  = {
+                .vendor         = 0x02d0,
+                .device         = 0x4329,
+        },
+};
+
+static struct tegra_sdhci_platform_data tegra_sdhci_platform_data0 = {
+        .mmc_data = {
+                .register_status_notify = ventana_wifi_status_register,
+                .embedded_sdio = &embedded_sdio_data0,
+                .built_in = 1,
+        },
+        .cd_gpio = -1,
+        .wp_gpio = -1,
+        .power_gpio = -1,
+};
+
+static struct tegra_sdhci_platform_data tegra_sdhci_platform_data2 = {
+        .cd_gpio = TEGRA_GPIO_PI5,
+        .wp_gpio = TEGRA_GPIO_PH1,
+        .power_gpio = TEGRA_GPIO_PI6,
+};
+
+static struct tegra_sdhci_platform_data tegra_sdhci_platform_data3 = {
+        .is_8bit = 1,
+        .cd_gpio = -1,
+        .wp_gpio = -1,
+        .power_gpio = -1,
+        .mmc_data = {
+                .built_in = 1,
+        }
+};
+
+static struct platform_device tegra_sdhci_device0 = {
+        .name           = "sdhci-tegra",
+        .id             = 0,
+        .resource       = sdhci_resource0,
+        .num_resources  = ARRAY_SIZE(sdhci_resource0),
+        .dev = {
+                .platform_data = &tegra_sdhci_platform_data0,
+        },
+};
+
+static struct platform_device tegra_sdhci_device2 = {
+        .name           = "sdhci-tegra",
+        .id             = 2,
+        .resource       = sdhci_resource2,
+        .num_resources  = ARRAY_SIZE(sdhci_resource2),
+        .dev = {
+                .platform_data = &tegra_sdhci_platform_data2,
+        },
+};
+
+static struct platform_device tegra_sdhci_device3 = {
+        .name           = "sdhci-tegra",
+        .id             = 3,
+        .resource       = sdhci_resource3,
+        .num_resources  = ARRAY_SIZE(sdhci_resource3),
+        .dev = {
+                .platform_data = &tegra_sdhci_platform_data3,
+        },
+};
+
+static int ventana_wifi_status_register(
+                void (*callback)(int card_present, void *dev_id),
+                void *dev_id)
+{
+        if (wifi_status_cb)
+                return -EAGAIN;
+        wifi_status_cb = callback;
+        wifi_status_cb_devid = dev_id;
+        return 0;
+}
+
+static int ventana_wifi_set_carddetect(int val)
+{
+        pr_debug("%s: %d\n", __func__, val);
+        if (wifi_status_cb)
+                wifi_status_cb(val, wifi_status_cb_devid);
+        else
+                pr_warning("%s: Nobody to notify\n", __func__);
+        return 0;
+}
+
+static int ventana_wifi_power(int on)
+{
+        pr_debug("%s: %d\n", __func__, on);
+
+        gpio_set_value(VENTANA_WLAN_PWR, on);
+        mdelay(100);
+        gpio_set_value(VENTANA_WLAN_RST, on);
+        mdelay(200);
+
+        if (on)
+                clk_enable(wifi_32k_clk);
+        else
+                clk_disable(wifi_32k_clk);
+
+        return 0;
+}
+
+static int ventana_wifi_reset(int on)
+{
+        pr_debug("%s: do nothing\n", __func__);
+        return 0;
+}
+
+static int __init ventana_wifi_init(void)
+{
+        wifi_32k_clk = clk_get_sys(NULL, "blink");
+        if (IS_ERR(wifi_32k_clk)) {
+                pr_err("%s: unable to get blink clock\n", __func__);
+                return PTR_ERR(wifi_32k_clk);
+        }
+
+        gpio_request(VENTANA_WLAN_PWR, "wlan_power");
+        gpio_request(VENTANA_WLAN_RST, "wlan_rst");
+        gpio_request(VENTANA_WLAN_WOW, "bcmsdh_sdmmc");
+
+        tegra_gpio_enable(VENTANA_WLAN_PWR);
+        tegra_gpio_enable(VENTANA_WLAN_RST);
+        tegra_gpio_enable(VENTANA_WLAN_WOW);
+
+        gpio_direction_output(VENTANA_WLAN_PWR, 0);
+        gpio_direction_output(VENTANA_WLAN_RST, 0);
+        gpio_direction_input(VENTANA_WLAN_WOW);
+
+        platform_device_register(&ventana_wifi_device);
+
+        device_init_wakeup(&ventana_wifi_device.dev, 1);
+        device_set_wakeup_enable(&ventana_wifi_device.dev, 0);
+
+        return 0;
+}
+int __init ventana_sdhci_init(void)
+{
+        tegra_gpio_enable(tegra_sdhci_platform_data2.power_gpio);
+        tegra_gpio_enable(tegra_sdhci_platform_data2.cd_gpio);
+        tegra_gpio_enable(tegra_sdhci_platform_data2.wp_gpio);
+        tegra_gpio_enable(tegra_sdhci_platform_data3.power_gpio);
+
+        platform_device_register(&tegra_sdhci_device3);
+        platform_device_register(&tegra_sdhci_device2);
+        platform_device_register(&tegra_sdhci_device0);
+
+        ventana_wifi_init();
+        return 0;
+}