commit 639d0b8996aa5913402b846932d57a51a23a40c9
author Kalle Valo <kvalo@qca.qualcomm.com> Mon Sep 12 12:48:09 2011 +0300
committer Kalle Valo <kvalo@qca.qualcomm.com> Fri Sep 16 18:48:34 2011 +0300
tree 31fd491363659d9d348c32006639243abbd6f699
parent 991b27eaf937a67bb575a95be5c592d9b9109a84

ath6kl: read firmware start address from hardware

It's actually possible to read the firmware start address from hardware,
that way there's no need to hardcode the address in hardware.

Thanks to Chilam Ng for the idea.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath6kl/init.c

diff --git a/drivers/net/wireless/ath/ath6kl/init.c b/drivers/net/wireless/ath/ath6kl/init.c
index bf0385e..5865466 100644
--- a/drivers/net/wireless/ath/ath6kl/init.c
+++ b/drivers/net/wireless/ath/ath6kl/init.c
@@ -1146,9 +1146,21 @@
 		return ret;
 	}
 
+	/* read firmware start address */
+	ret = ath6kl_bmi_read(ar,
+			      ath6kl_get_hi_item_addr(ar,
+						      HI_ITEM(hi_app_start)),
+			      (u8 *) &address, sizeof(address));
+
+	if (ret) {
+		ath6kl_err("Failed to read hi_app_start: %d\n", ret);
+		return ret;
+	}
+
+	ar->hw.app_start_override_addr = address;
+
 	/* execute the OTP code */
 	param = 0;
-	address = ar->hw.app_start_override_addr;
 	ath6kl_bmi_execute(ar, address, &param);
 
 	return ret;
@@ -1343,21 +1355,18 @@
 	case AR6003_REV2_VERSION:
 		ar->hw.dataset_patch_addr = AR6003_REV2_DATASET_PATCH_ADDRESS;
 		ar->hw.app_load_addr = AR6003_REV2_APP_LOAD_ADDRESS;
-		ar->hw.app_start_override_addr = AR6003_REV2_APP_START_OVERRIDE;
 		ar->hw.board_ext_data_addr = AR6003_REV2_BOARD_EXT_DATA_ADDRESS;
 		ar->hw.reserved_ram_size = AR6003_REV2_RAM_RESERVE_SIZE;
 		break;
 	case AR6003_REV3_VERSION:
 		ar->hw.dataset_patch_addr = AR6003_REV3_DATASET_PATCH_ADDRESS;
 		ar->hw.app_load_addr = 0x1234;
-		ar->hw.app_start_override_addr = AR6003_REV3_APP_START_OVERRIDE;
 		ar->hw.board_ext_data_addr = AR6003_REV3_BOARD_EXT_DATA_ADDRESS;
 		ar->hw.reserved_ram_size = AR6003_REV3_RAM_RESERVE_SIZE;
 		break;
 	case AR6004_REV1_VERSION:
 		ar->hw.dataset_patch_addr = AR6003_REV2_DATASET_PATCH_ADDRESS;
 		ar->hw.app_load_addr = AR6003_REV3_APP_LOAD_ADDRESS;
-		ar->hw.app_start_override_addr = AR6003_REV3_APP_START_OVERRIDE;
 		ar->hw.board_ext_data_addr = AR6004_REV1_BOARD_EXT_DATA_ADDRESS;
 		ar->hw.reserved_ram_size = AR6004_REV1_RAM_RESERVE_SIZE;
 		break;