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[ARM] pxa/cm-x300: add Wi2Wi chip (Bluetooth and WiFi) initialization

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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>
This commit is contained in:
Igor Grinberg 2009-10-14 09:20:21 +02:00 committed by Eric Miao
parent 74e74defd6
commit b3d01da66d
1 changed files with 38 additions and 0 deletions
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38
arch/arm/mach-pxa/cm-x300.c
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@ -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,