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authorIgor Grinberg <grinberg@compulab.co.il>2009-10-14 09:20:21 +0200
committerEric Miao <eric.y.miao@gmail.com>2009-12-01 09:03:08 +0800
commitb3d01da66d45504f8bdc6fbc9c0c1f1705ebc251 (patch)
tree61fcf3e49280202a9b639036d7ae0fe17a6ce8f8 /arch/arm/mach-pxa
parent74e74defd6c471fc7ec108e64cb953164940a122 (diff)
[ARM] pxa/cm-x300: add Wi2Wi chip (Bluetooth and WiFi) initialization
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Diffstat (limited to 'arch/arm/mach-pxa')
-rw-r--r--arch/arm/mach-pxa/cm-x300.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/cm-x300.c b/arch/arm/mach-pxa/cm-x300.c
index 8726dc7c73a6..9a21bc567ca2 100644
--- a/arch/arm/mach-pxa/cm-x300.c
+++ b/arch/arm/mach-pxa/cm-x300.c
@@ -16,6 +16,7 @@
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/init.h>
+#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
@@ -513,6 +514,42 @@ static void __init cm_x300_init_rtc(void)
static inline void cm_x300_init_rtc(void) {}
#endif
+static void __init cm_x300_init_wi2wi(void)
+{
+ int bt_reset, wlan_en;
+ int err;
+
+ if (system_rev < 130) {
+ wlan_en = 77;
+ bt_reset = 78;
+ } else {
+ wlan_en = 71;
+ bt_reset = 70;
+ }
+
+ /* Libertas and CSR reset */
+ err = gpio_request(wlan_en, "wlan en");
+ if (err) {
+ pr_err("CM-X300: failed to request wlan en gpio: %d\n", err);
+ } else {
+ gpio_direction_output(wlan_en, 1);
+ gpio_free(wlan_en);
+ }
+
+ err = gpio_request(bt_reset, "bt reset");
+ if (err) {
+ pr_err("CM-X300: failed to request bt reset gpio: %d\n", err);
+ } else {
+ gpio_direction_output(bt_reset, 1);
+ udelay(10);
+ gpio_set_value(bt_reset, 0);
+ udelay(10);
+ gpio_set_value(bt_reset, 1);
+ gpio_free(bt_reset);
+ }
+}
+
+/* MFP */
static void __init cm_x300_init_mfp(void)
{
/* board-processor specific GPIO initialization */
@@ -542,6 +579,7 @@ static void __init cm_x300_init(void)
cm_x300_init_spi();
cm_x300_init_rtc();
cm_x300_init_ac97();
+ cm_x300_init_wi2wi();
}
static void __init cm_x300_fixup(struct machine_desc *mdesc, struct tag *tags,