wl18xx: translate and write the board type to SCR_PAD2

The firmware uses the SCR_PAD2 register to read the board type passed
from the driver.  The values don't match the ones used in the mac and
phy configuration, so we need to map them before writing.  This commit
adds a translation table that is used when writing the board type to
SCR_PAD2.
Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>

drivers/net/wireless/ti/wl18xx/main.c

@@ -44,6 +44,12 @@
 static char *ht_mode_param;
 static char *board_type_param;
 
+static const u32 wl18xx_board_type_to_scrpad2[NUM_BOARD_TYPES] = {
+	[BOARD_TYPE_FPGA_18XX]		= SCR_PAD2_BOARD_TYPE_FPGA,
+	[BOARD_TYPE_HDK_18XX]		= SCR_PAD2_BOARD_TYPE_HDK,
+	[BOARD_TYPE_DVP_EVB_18XX]	= SCR_PAD2_BOARD_TYPE_DVP_EVB,
+};
+
 static const u8 wl18xx_rate_to_idx_2ghz[] = {
 	/* MCS rates are used only with 11n */
 	15,                            /* WL18XX_CONF_HW_RXTX_RATE_MCS15 */
@@ -584,11 +590,11 @@ static int wl18xx_identify_chip(struct wl1271 *wl)
 
 static void wl18xx_set_clk(struct wl1271 *wl)
 {
-	/*
-	 * TODO: this is hardcoded just for DVP/EVB, fix according to
-	 * new unified_drv.
-	 */
-	wl1271_write32(wl, WL18XX_SCR_PAD2, 0xB3);
+	struct wl18xx_priv *priv = wl->priv;
+
+	/* write the translated board type to SCR_PAD2 */
+	wl1271_write32(wl, WL18XX_SCR_PAD2,
+		       wl18xx_board_type_to_scrpad2[priv->board_type]);
 
 	wlcore_set_partition(wl, &wl->ptable[PART_TOP_PRCM_ELP_SOC]);
 	wl1271_write32(wl, 0x00A02360, 0xD0078);

drivers/net/wireless/ti/wl18xx/reg.h

@@ -154,6 +154,15 @@ enum {
 	BOARD_TYPE_FPGA_18XX	= 0,
 	BOARD_TYPE_HDK_18XX	= 1,
 	BOARD_TYPE_DVP_EVB_18XX	= 2,
+
+	NUM_BOARD_TYPES,
+};
+
+/* board type values used by the firmware in the SCR_PAD2 register */
+enum {
+	SCR_PAD2_BOARD_TYPE_FPGA	= 0xB1,
+	SCR_PAD2_BOARD_TYPE_HDK		= 0xB2,
+	SCR_PAD2_BOARD_TYPE_DVP_EVB	= 0xB3,
 };
 
 struct wl18xx_mac_and_phy_params {