qcacld-3.0: Remove obsolete codeswap feature

Codeswap feature is introduced for a WLAN chipset which is already
cancelled. It is no longer used in host driver. Remove the feature
to avoid any confusion for future development.

Change-Id: I70ae291ded2d2e290408e2f5b177e872f1f3d7e8
CRs-fixed: 1082183

Kbuild

@@ -1454,13 +1454,6 @@ CDEFINES += -DWLAN_FEATURE_RX_FULL_REORDER_OL
 endif
 endif
 
-#enable Code swap feature
-ifeq ($(CONFIG_CNSS), y)
-ifeq ($(CONFIG_HIF_PCI), 1)
-CDEFINES += -DCONFIG_CODESWAP_FEATURE
-endif
-endif
-
 #Enable Signed firmware support for split binary format
 ifeq ($(CONFIG_QCA_SIGNED_SPLIT_BINARY_SUPPORT), 1)
 CDEFINES += -DQCA_SIGNED_SPLIT_BINARY_SUPPORT

core/bmi/src/ol_fw.c

@@ -1204,31 +1204,6 @@ end:
 	return status;
 }
 
-/* AXI Start Address */
-#define TARGET_ADDR (0xa0000)
-
-static void ol_transfer_codeswap_struct(struct ol_context *ol_ctx)
-{
-	struct pld_codeswap_codeseg_info wlan_codeswap;
-	QDF_STATUS rv;
-	qdf_device_t qdf_dev = ol_ctx->qdf_dev;
-
-	if (pld_get_codeswap_struct(qdf_dev->dev, &wlan_codeswap)) {
-		BMI_ERR("%s: failed to get codeswap structure", __func__);
-		return;
-	}
-
-	rv = bmi_write_memory(TARGET_ADDR,
-			      (uint8_t *) &wlan_codeswap, sizeof(wlan_codeswap),
-			      ol_ctx);
-
-	if (rv != QDF_STATUS_SUCCESS) {
-		BMI_ERR("Failed to Write 0xa0000 to Target");
-		return;
-	}
-	BMI_INFO("codeswap structure is successfully downloaded");
-}
-
 QDF_STATUS ol_download_firmware(struct ol_context *ol_ctx)
 {
 	struct hif_opaque_softc *scn = ol_ctx->scn;
@@ -1304,8 +1279,6 @@ QDF_STATUS ol_download_firmware(struct ol_context *ol_ctx)
 		BMI_INFO("%s: Using 0x%x for the remainder of init",
 				__func__, address);
 
-		ol_transfer_codeswap_struct(ol_ctx);
-
 		status = ol_transfer_bin_file(ol_ctx, ATH_OTP_FILE,
 						address, true);
 		/* Execute the OTP code only if entry found and downloaded */

core/pld/inc/pld_common.h

@@ -96,27 +96,6 @@ struct pld_fw_files {
 	char setup_file[PLD_MAX_FILE_NAME];
 };
 
-#define PLD_CODESWAP_MAX_CODESEGS 16
-
-/**
- * struct pld_codeswap_codeseg_info - code swap segment information
- * @codeseg_total_bytes: total bytes of segments
- * @num_codesegs: number of code segments
- * @codeseg_size: code segment size
- * @codeseg_size_log2: log2 of code segment size
- * @codeseg_busaddr: array of addresses of each code segment
- *
- * pld_codeswap_codeseg_info is used to store code swap segment
- * information.
- */
-struct pld_codeswap_codeseg_info {
-	u32   codeseg_total_bytes;
-	u32   num_codesegs;
-	u32   codeseg_size;
-	u32   codeseg_size_log2;
-	void *codeseg_busaddr[PLD_CODESWAP_MAX_CODESEGS];
-};
-
 /**
  * enum pld_platform_cap_flag - platform capability flag
  * @PLD_HAS_EXTERNAL_SWREG: has external regulator
@@ -333,8 +312,6 @@ int pld_get_fw_files_for_target(struct device *dev,
 				u32 target_type, u32 target_version);
 void pld_is_pci_link_down(struct device *dev);
 int pld_shadow_control(struct device *dev, bool enable);
-int pld_get_codeswap_struct(struct device *dev,
-			    struct pld_codeswap_codeseg_info *swap_seg);
 int pld_set_wlan_unsafe_channel(struct device *dev, u16 *unsafe_ch_list,
 				u16 ch_count);
 int pld_get_wlan_unsafe_channel(struct device *dev, u16 *unsafe_ch_list,

core/pld/src/pld_common.c

@@ -538,39 +538,6 @@ int pld_shadow_control(struct device *dev, bool enable)
 	return ret;
 }
 
-/**
- * pld_get_codeswap_struct() - Get codeswap structure
- * @dev: device
- * @swap_seg: buffer to codeswap information
- *
- * Return codeswap structure information to the buffer.
- *
- * Return: 0 for success
- *         Non zero failure code for errors
- */
-int pld_get_codeswap_struct(struct device *dev,
-			    struct pld_codeswap_codeseg_info *swap_seg)
-{
-	int ret = 0;
-
-	switch (pld_get_bus_type(dev)) {
-	case PLD_BUS_TYPE_PCIE:
-		ret = pld_pcie_get_codeswap_struct(swap_seg);
-		break;
-	case PLD_BUS_TYPE_SNOC:
-		break;
-	case PLD_BUS_TYPE_SDIO:
-		break;
-	case PLD_BUS_TYPE_USB:
-		break;
-	default:
-		ret = -EINVAL;
-		break;
-	}
-
-	return ret;
-}
-
 /**
  * pld_set_wlan_unsafe_channel() - Set unsafe channel
  * @dev: device

core/pld/src/pld_pcie.c

@@ -457,31 +457,6 @@ int pld_pcie_get_fw_files_for_target(struct pld_fw_files *pfw_files,
 	return 0;
 }
 
-/**
- * pld_pcie_get_codeswap_struct() - Get codeswap structure
- * @swap_seg: buffer to codeswap information
- *
- * Return codeswap structure information to the buffer.
- *
- * Return: 0 for success
- *         Non zero failure code for errors
- */
-int pld_pcie_get_codeswap_struct(struct pld_codeswap_codeseg_info *swap_seg)
-{
-	int ret = 0;
-	struct codeswap_codeseg_info cnss_swap_seg;
-
-	if (swap_seg == NULL)
-		return -ENODEV;
-
-	ret = cnss_get_codeswap_struct(&cnss_swap_seg);
-	if (0 != ret)
-		return ret;
-
-	memcpy(swap_seg, &cnss_swap_seg, sizeof(*swap_seg));
-	return 0;
-}
-
 /**
  * pld_pcie_get_platform_cap() - Get platform capabilities
  * @cap: buffer to the capabilities

core/pld/src/pld_pcie.h

@@ -137,11 +137,6 @@ static inline int pld_pcie_shadow_control(bool enable)
 	return 0;
 }
 static inline int
-pld_pcie_get_codeswap_struct(struct pld_codeswap_codeseg_info *swap_seg)
-{
-	return 0;
-}
-static inline int
 pld_pcie_set_wlan_unsafe_channel(u16 *unsafe_ch_list, u16 ch_count)
 {
 	return 0;
@@ -230,7 +225,6 @@ static inline uint8_t *pld_pcie_get_wlan_mac_address(struct device *dev,
 #else
 int pld_pcie_get_fw_files_for_target(struct pld_fw_files *pfw_files,
 				     u32 target_type, u32 target_version);
-int pld_pcie_get_codeswap_struct(struct pld_codeswap_codeseg_info *swap_seg);
 int pld_pcie_get_platform_cap(struct pld_platform_cap *cap);
 void pld_pcie_set_driver_status(enum pld_driver_status status);