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authorArnd Bergmann <arnd@arndb.de>2012-08-14 14:31:07 +0000
committerArnd Bergmann <arnd@arndb.de>2012-08-14 14:31:07 +0000
commite13b8ae7949106c6a8b1d4f2eb0dbde81b6cd32e (patch)
tree01588d5eee318133d93d04aa5c0718fca26309a4 /drivers/net/wireless/rt2x00/rt2800lib.c
parent38a398422b7225aa6a35892843d411d05140cbb4 (diff)
parente25dc79e919fb7cae5e2e26c5494d2d90c857965 (diff)
Merge branch 'testing/defconfig-warnings' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into testing/multiplatform3tracking-multiplatform-llct-20120814.0
Conflicts: arch/arm/mach-pxa/cm-x2xx.c sound/soc/ux500/ux500_msp_dai.c sound/soc/ux500/ux500_msp_i2s.c sound/soc/ux500/ux500_msp_i2s.h
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2800lib.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2800lib.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 88455b1b9fe..cb8c2aca54e 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -221,6 +221,67 @@ static void rt2800_rf_write(struct rt2x00_dev *rt2x00dev,
mutex_unlock(&rt2x00dev->csr_mutex);
}
+static int rt2800_enable_wlan_rt3290(struct rt2x00_dev *rt2x00dev)
+{
+ u32 reg;
+ int i, count;
+
+ rt2800_register_read(rt2x00dev, WLAN_FUN_CTRL, &reg);
+ if (rt2x00_get_field32(reg, WLAN_EN))
+ return 0;
+
+ rt2x00_set_field32(&reg, WLAN_GPIO_OUT_OE_BIT_ALL, 0xff);
+ rt2x00_set_field32(&reg, FRC_WL_ANT_SET, 1);
+ rt2x00_set_field32(&reg, WLAN_CLK_EN, 0);
+ rt2x00_set_field32(&reg, WLAN_EN, 1);
+ rt2800_register_write(rt2x00dev, WLAN_FUN_CTRL, reg);
+
+ udelay(REGISTER_BUSY_DELAY);
+
+ count = 0;
+ do {
+ /*
+ * Check PLL_LD & XTAL_RDY.
+ */
+ for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+ rt2800_register_read(rt2x00dev, CMB_CTRL, &reg);
+ if (rt2x00_get_field32(reg, PLL_LD) &&
+ rt2x00_get_field32(reg, XTAL_RDY))
+ break;
+ udelay(REGISTER_BUSY_DELAY);
+ }
+
+ if (i >= REGISTER_BUSY_COUNT) {
+
+ if (count >= 10)
+ return -EIO;
+
+ rt2800_register_write(rt2x00dev, 0x58, 0x018);
+ udelay(REGISTER_BUSY_DELAY);
+ rt2800_register_write(rt2x00dev, 0x58, 0x418);
+ udelay(REGISTER_BUSY_DELAY);
+ rt2800_register_write(rt2x00dev, 0x58, 0x618);
+ udelay(REGISTER_BUSY_DELAY);
+ count++;
+ } else {
+ count = 0;
+ }
+
+ rt2800_register_read(rt2x00dev, WLAN_FUN_CTRL, &reg);
+ rt2x00_set_field32(&reg, PCIE_APP0_CLK_REQ, 0);
+ rt2x00_set_field32(&reg, WLAN_CLK_EN, 1);
+ rt2x00_set_field32(&reg, WLAN_RESET, 1);
+ rt2800_register_write(rt2x00dev, WLAN_FUN_CTRL, reg);
+ udelay(10);
+ rt2x00_set_field32(&reg, WLAN_RESET, 0);
+ rt2800_register_write(rt2x00dev, WLAN_FUN_CTRL, reg);
+ udelay(10);
+ rt2800_register_write(rt2x00dev, INT_SOURCE_CSR, 0x7fffffff);
+ } while (count != 0);
+
+ return 0;
+}
+
void rt2800_mcu_request(struct rt2x00_dev *rt2x00dev,
const u8 command, const u8 token,
const u8 arg0, const u8 arg1)
@@ -400,6 +461,13 @@ int rt2800_load_firmware(struct rt2x00_dev *rt2x00dev,
{
unsigned int i;
u32 reg;
+ int retval;
+
+ if (rt2x00_rt(rt2x00dev, RT3290)) {
+ retval = rt2800_enable_wlan_rt3290(rt2x00dev);
+ if (retval)
+ return -EBUSY;
+ }
/*
* If driver doesn't wake up firmware here,