Commit b3d01da6 authored by Igor Grinberg's avatar Igor Grinberg Committed by Eric Miao
Browse files

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



Signed-off-by: default avatarIgor Grinberg <grinberg@compulab.co.il>
Signed-off-by: default avatarMike Rapoport <mike@compulab.co.il>
Signed-off-by: default avatarEric Miao <eric.y.miao@gmail.com>
parent 74e74def

arch/arm/mach-pxa/cm-x300.c

+38 −0
Original line number Diff line number Diff line
@@ -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,