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authorEric Nelson <eric.nelson@boundarydevices.com>2012-08-30 09:37:23 -0700
committerEric Nelson <eric.nelson@boundarydevices.com>2012-08-31 18:06:47 -0700
commit769f6121b7fc09d64e3ee2e63383307e2b3fe0e7 (patch)
treea9b2766d8a13249744401ef3c9ea0ee11dc53914
parent0384012123e34bed1d5a51e4592cae2e6a740a80 (diff)
i.MX6: mx6q_sabre_lite: add wl1271 interface on ESDHC2
-rw-r--r--arch/arm/mach-mx6/board-mx6q_sabrelite.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/arm/mach-mx6/board-mx6q_sabrelite.c b/arch/arm/mach-mx6/board-mx6q_sabrelite.c
index 36d15e7e8034..7903e8ddde8c 100644
--- a/arch/arm/mach-mx6/board-mx6q_sabrelite.c
+++ b/arch/arm/mach-mx6/board-mx6q_sabrelite.c
@@ -63,6 +63,7 @@
#include <mach/mxc_hdmi.h>
#include <mach/mxc_asrc.h>
#include <linux/i2c/tsc2007.h>
+#include <linux/wl12xx.h>
#include <asm/irq.h>
#include <asm/setup.h>
@@ -328,6 +329,7 @@ static iomux_v3_cfg_t mx6q_sabrelite_pads[] = {
NEW_PAD_CTRL(MX6Q_PAD_NANDF_CS1__GPIO_6_14, MX6Q_SABRELITE_WL_IRQ_PADCFG), /* wl1271 wl_irq */
NEW_PAD_CTRL(MX6Q_PAD_NANDF_CS2__GPIO_6_15, MX6Q_SABRELITE_WL_EN_PADCFG), /* wl1271 wl_en */
NEW_PAD_CTRL(MX6Q_PAD_NANDF_CS3__GPIO_6_16, MX6Q_SABRELITE_WL_EN_PADCFG), /* wl1271 bt_en */
+ MX6Q_PAD_SD1_CLK__OSC32K_32K_OUT, /* wl1271 clock */
/* UART3 for wl1271 */
MX6Q_PAD_EIM_D24__UART3_TXD,
@@ -1068,6 +1070,23 @@ static void __init sabrelite_add_device_buttons(void)
static void __init sabrelite_add_device_buttons(void) {}
#endif
+#ifdef CONFIG_WL12XX_PLATFORM_DATA
+static void wl1271_set_power(bool enable)
+{
+ if (0 == enable) {
+ gpio_set_value(N6_WL1271_WL_EN, 0); /* momentarily disable */
+ mdelay(2);
+ gpio_set_value(N6_WL1271_WL_EN, 1);
+ }
+}
+
+struct wl12xx_platform_data n6q_wlan_data __initdata = {
+ .irq = gpio_to_irq(N6_WL1271_WL_IRQ),
+ .board_ref_clock = WL12XX_REFCLOCK_38, /* 38.4 MHz */
+ .set_power = wl1271_set_power,
+};
+#endif
+
static struct regulator_consumer_supply sabrelite_vmmc_consumers[] = {
REGULATOR_SUPPLY("vmmc", "sdhci-esdhc-imx.2"),
REGULATOR_SUPPLY("vmmc", "sdhci-esdhc-imx.3"),
@@ -1383,6 +1402,25 @@ static void __init mx6_sabrelite_board_init(void)
clk_enable(clko2);
imx6q_add_busfreq();
+#ifdef CONFIG_WL12XX_PLATFORM_DATA
+ if (isn6) {
+ imx6q_add_sdhci_usdhc_imx(1, &mx6q_sabrelite_sd2_data);
+ /* WL12xx WLAN Init */
+ if (wl12xx_set_platform_data(&n6q_wlan_data))
+ pr_err("error setting wl12xx data\n");
+
+ gpio_set_value(N6_WL1271_WL_EN, 1); /* momentarily enable */
+ gpio_set_value(N6_WL1271_BT_EN, 1);
+ mdelay(2);
+ gpio_set_value(N6_WL1271_WL_EN, 0);
+ gpio_set_value(N6_WL1271_BT_EN, 0);
+
+ gpio_free(N6_WL1271_WL_EN);
+ gpio_free(N6_WL1271_BT_EN);
+ mdelay(1);
+ }
+#endif
+
imx6q_add_pcie(&pcie_data);
imx6q_add_perfmon(0);