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Commit c95cf3d0 authored by David-John Willis's avatar David-John Willis Committed by John W. Linville
Browse files

wl1251: add NVS in EEPROM support 



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: default avatarDavid-John Willis <John.Willis@Distant-earth.com>
Signed-off-by: default avatarKalle Valo <kalle.valo@nokia.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 7010193a

drivers/net/wireless/wl12xx/wl1251.h

+1 −0
Original line number Diff line number Diff line
@@ -269,6 +269,7 @@ struct wl1251 { 


	void (*set_power)(bool enable);

	int irq;

	bool use_eeprom;



	enum wl1251_state state;

	struct mutex mutex;

drivers/net/wireless/wl12xx/wl1251_boot.c

+13 −7
Original line number Diff line number Diff line
@@ -494,6 +494,11 @@ int wl1251_boot(struct wl1251 *wl) 
		goto out;



	/* 2. start processing NVS file */

	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;
@@ -501,6 +506,7 @@ int wl1251_boot(struct wl1251 *wl) 
		/* 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);

drivers/net/wireless/wl12xx/wl1251_reg.h

+6 −0
Original line number Diff line number Diff line
@@ -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

  ------------------------------------------

drivers/net/wireless/wl12xx/wl1251_spi.c

+2 −0
Original line number Diff line number Diff line
@@ -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);

include/linux/spi/wl12xx.h

+1 −0
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ 


struct wl12xx_platform_data {

	void (*set_power)(bool enable);

	bool use_eeprom;

};



#endif