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wl12xx: set the irq polarity before loading the fw

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The polarity should be set before the firmware is loaded
since the firmware touches the same register. Access
of the firmware and driver to the same register will
cause a collision since there is no exclusion scheme.

Signed-off-by: Yoni Divinsky <yoni.divinsky@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Yoni Divinsky 2012-05-08 14:02:12 +03:00 committed by Luciano Coelho
parent 2e42c203a9
commit 4a6c789b73
1 changed files with 6 additions and 6 deletions
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12
drivers/net/wireless/ti/wl12xx/main.c
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@ -995,7 +995,7 @@ static int wl12xx_pre_boot(struct wl1271 *wl)
static void wl12xx_pre_upload(struct wl1271 *wl) static void wl12xx_pre_upload(struct wl1271 *wl)
{ {
u32 tmp; u32 tmp, polarity;
/* write firmware's last address (ie. it's length) to /* write firmware's last address (ie. it's length) to
* ACX_EEPROMLESS_IND_REG */ * ACX_EEPROMLESS_IND_REG */
@ -1015,18 +1015,18 @@ static void wl12xx_pre_upload(struct wl1271 *wl)
if (wl->chip.id == CHIP_ID_1283_PG20) if (wl->chip.id == CHIP_ID_1283_PG20)
wl12xx_top_reg_write(wl, SDIO_IO_DS, HCI_IO_DS_6MA); wl12xx_top_reg_write(wl, SDIO_IO_DS, HCI_IO_DS_6MA);
}
static void wl12xx_enable_interrupts(struct wl1271 *wl)
{
u32 polarity;
/* polarity must be set before the firmware is loaded */
polarity = wl12xx_top_reg_read(wl, OCP_REG_POLARITY); polarity = wl12xx_top_reg_read(wl, OCP_REG_POLARITY);
/* We use HIGH polarity, so unset the LOW bit */ /* We use HIGH polarity, so unset the LOW bit */
polarity &= ~POLARITY_LOW; polarity &= ~POLARITY_LOW;
wl12xx_top_reg_write(wl, OCP_REG_POLARITY, polarity); wl12xx_top_reg_write(wl, OCP_REG_POLARITY, polarity);
}
static void wl12xx_enable_interrupts(struct wl1271 *wl)
{
wlcore_write_reg(wl, REG_INTERRUPT_MASK, WL1271_ACX_ALL_EVENTS_VECTOR); wlcore_write_reg(wl, REG_INTERRUPT_MASK, WL1271_ACX_ALL_EVENTS_VECTOR);
wlcore_enable_interrupts(wl); wlcore_enable_interrupts(wl);