1 files changed, 248 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/board-aruba-sdhci.c b/arch/arm/mach-tegra/board-aruba-sdhci.c
new file mode 100644
index 00000000000..26b04a9021e
--- /dev/null
+++ b/arch/arm/mach-tegra/board-aruba-sdhci.c
@@ -0,0 +1,248 @@
+/*
+ * 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 ARUBA_WIFI 0    /* !!!FIXME!!! NOT SUPPORTED YET */
+
+#if ARUBA_WIFI
+
+#define ARUBA_WLAN_PWR  TEGRA_GPIO_PK5
+#define ARUBA_WLAN_RST  TEGRA_GPIO_PK6
+
+static void (*wifi_status_cb)(int card_present, void *dev_id);
+static void *wifi_status_cb_devid;
+static int aruba_wifi_status_register(void (*callback)(int , void *), void *);
+static struct clk *wifi_32k_clk;
+
+static int aruba_wifi_reset(int on);
+static int aruba_wifi_power(int on);
+static int aruba_wifi_set_carddetect(int val);
+
+static struct wifi_platform_data aruba_wifi_control = {
+        .set_power      = aruba_wifi_power,
+        .set_reset      = aruba_wifi_reset,
+        .set_carddetect = aruba_wifi_set_carddetect,
+};
+
+static struct platform_device aruba_wifi_device = {
+        .name           = "bcm4329_wlan",
+        .id             = 1,
+        .dev            = {
+                .platform_data = &aruba_wifi_control,
+        },
+};
+#endif
+
+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 tegra_sdhci_platform_data tegra_sdhci_platform_data0 = {
+#if ARUBA_WIFI  /* !!!FIXME!!! NOT SUPPORTED YET */
+        .register_status_notify = aruba_wifi_status_register,
+        .cccr   = {
+                .sdio_vsn       = 2,
+                .multi_block    = 1,
+                .low_speed      = 0,
+                .wide_bus       = 0,
+                .high_power     = 1,
+                .high_speed     = 1,
+        },
+        .cis  = {
+                .vendor         = 0x02d0,
+                .device         = 0x4329,
+        },
+#endif
+        .cd_gpio = -1,
+        .wp_gpio = -1,
+        .power_gpio = -1,
+/*      .max_clk = 12000000, */
+};
+
+static struct tegra_sdhci_platform_data tegra_sdhci_platform_data2 = {
+        .cd_gpio = -1,
+        .wp_gpio = -1,
+        .power_gpio = -1,
+/*      .max_clk = 12000000, */
+};
+
+static struct tegra_sdhci_platform_data tegra_sdhci_platform_data3 = {
+        .cd_gpio = -1,
+        .wp_gpio = -1,
+        .power_gpio = -1,
+/*      .max_clk = 12000000, */
+};
+
+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,
+        },
+};
+
+#if ARUBA_WIFI /* !!!FIXME!!! NOT SUPPORTED YET */
+static int aruba_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 aruba_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 aruba_wifi_power(int on)
+{
+        pr_debug("%s: %d\n", __func__, on);
+
+        gpio_set_value(ARUBA_WLAN_PWR, on);
+        mdelay(100);
+        gpio_set_value(ARUBA_WLAN_RST, on);
+        mdelay(200);
+
+        if (on)
+                clk_enable(wifi_32k_clk);
+        else
+                clk_disable(wifi_32k_clk);
+
+        return 0;
+}
+
+static int aruba_wifi_reset(int on)
+{
+        pr_debug("%s: do nothing\n", __func__);
+        return 0;
+}
+
+static int __init aruba_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(ARUBA_WLAN_PWR, "wlan_power");
+        gpio_request(ARUBA_WLAN_RST, "wlan_rst");
+
+        tegra_gpio_enable(ARUBA_WLAN_PWR);
+        tegra_gpio_enable(ARUBA_WLAN_RST);
+
+        gpio_direction_output(ARUBA_WLAN_PWR, 0);
+        gpio_direction_output(ARUBA_WLAN_RST, 0);
+
+        platform_device_register(&aruba_wifi_device);
+        return 0;
+}
+#else
+#define aruba_wifi_init() do {} while (0)
+#endif
+
+int __init aruba_sdhci_init(void)
+{
+        platform_device_register(&tegra_sdhci_device3);
+        platform_device_register(&tegra_sdhci_device2);
+        platform_device_register(&tegra_sdhci_device0);
+
+        aruba_wifi_init();
+        return 0;
+}