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| author | Igor Grinberg <grinberg@compulab.co.il> | 2009-10-14 09:20:21 +0200 |
|---|---|---|
| committer | Eric Miao <eric.y.miao@gmail.com> | 2009-12-01 09:03:08 +0800 |
| commit | b3d01da66d45504f8bdc6fbc9c0c1f1705ebc251 (patch) | |
| tree | 61fcf3e49280202a9b639036d7ae0fe17a6ce8f8 /arch/arm/mach-pxa/cm-x300.c | |
| parent | 74e74defd6c471fc7ec108e64cb953164940a122 (diff) | |
| download | lwn-b3d01da66d45504f8bdc6fbc9c0c1f1705ebc251.tar.gz lwn-b3d01da66d45504f8bdc6fbc9c0c1f1705ebc251.zip | |
[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/cm-x300.c')
| -rw-r--r-- | arch/arm/mach-pxa/cm-x300.c | 38 |
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, |