From: David-John Willis <John.Willis@xxxxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxxxx>
Signed-off-by: Kalle Valo <kalle.valo@xxxxxxxxx>
---
drivers/net/wireless/wl12xx/wl1251.h | 1 +
drivers/net/wireless/wl12xx/wl1251_boot.c | 20 +++++++++++++-------
drivers/net/wireless/wl12xx/wl1251_reg.h | 6 ++++++
drivers/net/wireless/wl12xx/wl1251_spi.c | 2 ++
include/linux/spi/wl12xx.h | 1 +
5 files changed, 23 insertions(+), 7 deletions(-)
diff --git a/drivers/net/wireless/wl12xx/wl1251.h b/drivers/net/wireless/wl12xx/wl1251.h
index a839466..054533f 100644
--- a/drivers/net/wireless/wl12xx/wl1251.h
+++ b/drivers/net/wireless/wl12xx/wl1251.h
@@ -269,6 +269,7 @@ struct wl1251 {
void (*set_power)(bool enable);
int irq;
+ bool use_eeprom;
enum wl1251_state state;
struct mutex mutex;
diff --git a/drivers/net/wireless/wl12xx/wl1251_boot.c b/drivers/net/wireless/wl12xx/wl1251_boot.c
index 5094f24..2e733e7 100644
--- a/drivers/net/wireless/wl12xx/wl1251_boot.c
+++ b/drivers/net/wireless/wl12xx/wl1251_boot.c
@@ -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;
-
- /* 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);
+ 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);
+ }
/* 6. read the EEPROM parameters */
tmp = wl1251_reg_read32(wl, SCR_PAD2);
diff --git a/drivers/net/wireless/wl12xx/wl1251_reg.h b/drivers/net/wireless/wl12xx/wl1251_reg.h
index 06e1bd9..0ca3b43 100644
--- a/drivers/net/wireless/wl12xx/wl1251_reg.h
+++ b/drivers/net/wireless/wl12xx/wl1251_reg.h
@@ -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
------------------------------------------
diff --git a/drivers/net/wireless/wl12xx/wl1251_spi.c b/drivers/net/wireless/wl12xx/wl1251_spi.c
index 2cf8a21..9cc8c32 100644
--- a/drivers/net/wireless/wl12xx/wl1251_spi.c
+++ b/drivers/net/wireless/wl12xx/wl1251_spi.c
@@ -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);
diff --git a/include/linux/spi/wl12xx.h b/include/linux/spi/wl12xx.h
index 11430ca..aed64ed 100644
--- a/include/linux/spi/wl12xx.h
+++ b/include/linux/spi/wl12xx.h
@@ -26,6 +26,7 @@
struct wl12xx_platform_data {
void (*set_power)(bool enable);
+ bool use_eeprom;
};
#endif
--
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