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wl1251: add NVS in EEPROM support

Browse source 
wl1251 supports also that NVS is stored in a separate EEPROM, add support
for that.

kvalo: use platform data instead Kconfig and use kernel style

Signed-off-by: David-John Willis <John.Willis@Distant-earth.com>
Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
David-John Willis 2009-11-17 18:50:09 +02:00 committed by John W. Linville
parent 7010193ad8
commit c95cf3d09a
5 changed files with 22 additions and 6 deletions
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1
drivers/net/wireless/wl12xx/wl1251.h
View file

@ -269,6 +269,7 @@ struct wl1251 {
void (*set_power)(bool enable);
int irq;
bool use_eeprom;
enum wl1251_state state;
struct mutex mutex;

18
drivers/net/wireless/wl12xx/wl1251_boot.c
View file

@ -494,13 +494,19 @@ int wl1251_boot(struct wl1251 *wl)
goto out;
/* 2. start processing NVS file */
ret = wl1251_boot_upload_nvs(wl);
if (ret < 0)
goto out;
if (wl->use_eeprom) {
wl1251_reg_write32(wl, ACX_REG_EE_START, START_EEPROM_MGR);
msleep(4000);
wl1251_reg_write32(wl, ACX_EEPROMLESS_IND_REG, USE_EEPROM);
} else {
ret = wl1251_boot_upload_nvs(wl);
if (ret < 0)
goto out;
/* write firmware's last address (ie. it's length) to
* ACX_EEPROMLESS_IND_REG */
wl1251_reg_write32(wl, ACX_EEPROMLESS_IND_REG, wl->fw_len);
/* write firmware's last address (ie. it's length) to
* ACX_EEPROMLESS_IND_REG */
wl1251_reg_write32(wl, ACX_EEPROMLESS_IND_REG, wl->fw_len);
}
/* 6. read the EEPROM parameters */
tmp = wl1251_reg_read32(wl, SCR_PAD2);

6
drivers/net/wireless/wl12xx/wl1251_reg.h
View file

@ -370,6 +370,7 @@ enum wl12xx_acx_int_reg {
EEPROM location specified in the EE_ADDR register.
The Wlan hardware hardware clears this bit automatically.
*===============================================*/
#define EE_CTL (REGISTERS_BASE + 0x2000)
#define ACX_EE_CTL_REG EE_CTL
#define EE_WRITE 0x00000001ul
#define EE_READ 0x00000002ul
@ -380,6 +381,7 @@ enum wl12xx_acx_int_reg {
This register specifies the address
within the EEPROM from/to which to read/write data.
===============================================*/
#define EE_ADDR (REGISTERS_BASE + 0x2008)
#define ACX_EE_ADDR_REG EE_ADDR
/*===============================================
@ -389,8 +391,12 @@ enum wl12xx_acx_int_reg {
data from the EEPROM or the write data
to be written to the EEPROM.
===============================================*/
#define EE_DATA (REGISTERS_BASE + 0x2004)
#define ACX_EE_DATA_REG EE_DATA
#define EEPROM_ACCESS_TO 10000 /* timeout counter */
#define START_EEPROM_MGR 0x00000001
/*===============================================
EEPROM Base Address - 32bit RW
------------------------------------------

2
drivers/net/wireless/wl12xx/wl1251_spi.c
View file

@ -270,6 +270,8 @@ static int __devinit wl1251_spi_probe(struct spi_device *spi)
return -ENODEV;
}
wl->use_eeprom = pdata->use_eeprom;
ret = request_irq(wl->irq, wl1251_irq, 0, DRIVER_NAME, wl);
if (ret < 0) {
wl1251_error("request_irq() failed: %d", ret);

1
include/linux/spi/wl12xx.h
View file

@ -26,6 +26,7 @@
struct wl12xx_platform_data {
void (*set_power)(bool enable);
bool use_eeprom;
};
#endif