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Commit 639d0b89 authored by Kalle Valo's avatar Kalle Valo
Browse files

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: default avatarKalle Valo <kvalo@qca.qualcomm.com>
parent 991b27ea

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

+13 −4
Original line number Diff line number Diff line
@@ -1146,9 +1146,21 @@ static int ath6kl_upload_otp(struct ath6kl *ar) 
		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 @@ static int ath6kl_init_hw_params(struct ath6kl *ar) 
	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;

drivers/net/wireless/ath/ath6kl/target.h

+0 −2
Original line number Diff line number Diff line
@@ -331,13 +331,11 @@ struct host_interest { 
	(((target_type) == TARGET_TYPE_AR6003) ? AR6003_VTOP(vaddr) : \

	(((target_type) == TARGET_TYPE_AR6004) ? AR6004_VTOP(vaddr) : 0))



#define AR6003_REV2_APP_START_OVERRIDE          0x944C00

#define AR6003_REV2_APP_LOAD_ADDRESS            0x543180

#define AR6003_REV2_BOARD_EXT_DATA_ADDRESS      0x57E500

#define AR6003_REV2_DATASET_PATCH_ADDRESS       0x57e884

#define AR6003_REV2_RAM_RESERVE_SIZE            6912



#define AR6003_REV3_APP_START_OVERRIDE          0x945d00

#define AR6003_REV3_APP_LOAD_ADDRESS            0x545000

#define AR6003_REV3_BOARD_EXT_DATA_ADDRESS      0x542330

#define AR6003_REV3_DATASET_PATCH_ADDRESS       0x57FF74