20 static void falcon_writel(struct falcon *falcon, u32 value, u32 offset)  in falcon_writel()  argument
22 	writel(value, falcon->regs + offset);  in falcon_writel()
25 int falcon_wait_idle(struct falcon *falcon)  in falcon_wait_idle()  argument
29 	return readl_poll_timeout(falcon->regs + FALCON_IDLESTATE, value,  in falcon_wait_idle()
33 static int falcon_dma_wait_idle(struct falcon *falcon)  in falcon_dma_wait_idle()  argument
37 	return readl_poll_timeout(falcon->regs + FALCON_DMATRFCMD, value,  in falcon_dma_wait_idle()
41 static int falcon_copy_chunk(struct falcon *falcon,  in falcon_copy_chunk()  argument
51 	falcon_writel(falcon, offset, FALCON_DMATRFMOFFS);  in falcon_copy_chunk()
52 	falcon_writel(falcon, base, FALCON_DMATRFFBOFFS);  in falcon_copy_chunk()
53 	falcon_writel(falcon, cmd, FALCON_DMATRFCMD);  in falcon_copy_chunk()
55 	return falcon_dma_wait_idle(falcon);  in falcon_copy_chunk()
58 static void falcon_copy_firmware_image(struct falcon *falcon,  in falcon_copy_firmware_image()  argument
61 	u32 *firmware_vaddr = falcon->firmware.vaddr;  in falcon_copy_firmware_image()
71 	daddr = dma_map_single(falcon->dev, firmware_vaddr,  in falcon_copy_firmware_image()
72 			       falcon->firmware.size, DMA_TO_DEVICE);  in falcon_copy_firmware_image()
73 	err = dma_mapping_error(falcon->dev, daddr);  in falcon_copy_firmware_image()
75 		dev_err(falcon->dev, "failed to map firmware: %d\n", err);  in falcon_copy_firmware_image()
78 	dma_sync_single_for_device(falcon->dev, daddr,  in falcon_copy_firmware_image()
79 				   falcon->firmware.size, DMA_TO_DEVICE);  in falcon_copy_firmware_image()
80 	dma_unmap_single(falcon->dev, daddr, falcon->firmware.size,  in falcon_copy_firmware_image()
84 static int falcon_parse_firmware_image(struct falcon *falcon)  in falcon_parse_firmware_image()  argument
86 	struct falcon_fw_bin_header_v1 *bin = (void *)falcon->firmware.vaddr;  in falcon_parse_firmware_image()
91 		dev_err(falcon->dev, "incorrect firmware magic\n");  in falcon_parse_firmware_image()
97 		dev_err(falcon->dev, "unsupported firmware version\n");  in falcon_parse_firmware_image()
102 	if (bin->size > falcon->firmware.size) {  in falcon_parse_firmware_image()
103 		dev_err(falcon->dev, "firmware image size inconsistency\n");  in falcon_parse_firmware_image()
107 	os = falcon->firmware.vaddr + bin->os_header_offset;  in falcon_parse_firmware_image()
109 	falcon->firmware.bin_data.size = bin->os_size;  in falcon_parse_firmware_image()
110 	falcon->firmware.bin_data.offset = bin->os_data_offset;  in falcon_parse_firmware_image()
111 	falcon->firmware.code.offset = os->code_offset;  in falcon_parse_firmware_image()
112 	falcon->firmware.code.size = os->code_size;  in falcon_parse_firmware_image()
113 	falcon->firmware.data.offset = os->data_offset;  in falcon_parse_firmware_image()
114 	falcon->firmware.data.size = os->data_size;  in falcon_parse_firmware_image()
119 int falcon_read_firmware(struct falcon *falcon, const char *name)  in falcon_read_firmware()  argument
124 	err = request_firmware(&falcon->firmware.firmware, name, falcon->dev);  in falcon_read_firmware()
131 int falcon_load_firmware(struct falcon *falcon)  in falcon_load_firmware()  argument
133 	const struct firmware *firmware = falcon->firmware.firmware;  in falcon_load_firmware()
136 	falcon->firmware.size = firmware->size;  in falcon_load_firmware()
139 	falcon->firmware.vaddr = falcon->ops->alloc(falcon, firmware->size,  in falcon_load_firmware()
140 						    &falcon->firmware.paddr);  in falcon_load_firmware()
141 	if (IS_ERR(falcon->firmware.vaddr)) {  in falcon_load_firmware()
142 		dev_err(falcon->dev, "DMA memory mapping failed\n");  in falcon_load_firmware()
143 		return PTR_ERR(falcon->firmware.vaddr);  in falcon_load_firmware()
147 	falcon_copy_firmware_image(falcon, firmware);  in falcon_load_firmware()
150 	err = falcon_parse_firmware_image(falcon);  in falcon_load_firmware()
152 		dev_err(falcon->dev, "failed to parse firmware image\n");  in falcon_load_firmware()
157 	falcon->firmware.firmware = NULL;  in falcon_load_firmware()
162 	falcon->ops->free(falcon, falcon->firmware.size,  in falcon_load_firmware()
163 			  falcon->firmware.paddr, falcon->firmware.vaddr);  in falcon_load_firmware()
168 int falcon_init(struct falcon *falcon)  in falcon_init()  argument
171 	if (!falcon->ops || !falcon->ops->alloc || !falcon->ops->free)  in falcon_init()
174 	falcon->firmware.vaddr = NULL;  in falcon_init()
179 void falcon_exit(struct falcon *falcon)  in falcon_exit()  argument
181 	if (falcon->firmware.firmware) {  in falcon_exit()
182 		release_firmware(falcon->firmware.firmware);  in falcon_exit()
183 		falcon->firmware.firmware = NULL;  in falcon_exit()
186 	if (falcon->firmware.vaddr) {  in falcon_exit()
187 		falcon->ops->free(falcon, falcon->firmware.size,  in falcon_exit()
188 				  falcon->firmware.paddr,  in falcon_exit()
189 				  falcon->firmware.vaddr);  in falcon_exit()
190 		falcon->firmware.vaddr = NULL;  in falcon_exit()
194 int falcon_boot(struct falcon *falcon)  in falcon_boot()  argument
200 	if (!falcon->firmware.vaddr)  in falcon_boot()
203 	err = readl_poll_timeout(falcon->regs + FALCON_DMACTL, value,  in falcon_boot()
210 	falcon_writel(falcon, 0, FALCON_DMACTL);  in falcon_boot()
213 	falcon_writel(falcon, (falcon->firmware.paddr +  in falcon_boot()
214 			       falcon->firmware.bin_data.offset) >> 8,  in falcon_boot()
218 	for (offset = 0; offset < falcon->firmware.data.size; offset += 256)  in falcon_boot()
219 		falcon_copy_chunk(falcon,  in falcon_boot()
220 				  falcon->firmware.data.offset + offset,  in falcon_boot()
224 	falcon_copy_chunk(falcon, falcon->firmware.code.offset,  in falcon_boot()
228 	falcon_writel(falcon, FALCON_IRQMSET_EXT(0xff) |  in falcon_boot()
235 	falcon_writel(falcon, FALCON_IRQDEST_EXT(0xff) |  in falcon_boot()
243 	falcon_writel(falcon, FALCON_ITFEN_MTHDEN |  in falcon_boot()
248 	falcon_writel(falcon, 0x00000000, FALCON_BOOTVEC);  in falcon_boot()
249 	falcon_writel(falcon, FALCON_CPUCTL_STARTCPU, FALCON_CPUCTL);  in falcon_boot()
251 	err = falcon_wait_idle(falcon);  in falcon_boot()
253 		dev_err(falcon->dev, "Falcon boot failed due to timeout\n");  in falcon_boot()
260 void falcon_execute_method(struct falcon *falcon, u32 method, u32 data)  in falcon_execute_method()  argument
262 	falcon_writel(falcon, method >> 2, FALCON_UCLASS_METHOD_OFFSET);  in falcon_execute_method()
263 	falcon_writel(falcon, data, FALCON_UCLASS_METHOD_DATA);  in falcon_execute_method()