Lines Matching refs:falcon
12 #include "falcon.h"
20 static void falcon_writel(struct falcon *falcon, u32 value, u32 offset)
22 writel(value, falcon->regs + offset);
25 int falcon_wait_idle(struct falcon *falcon)
29 return readl_poll_timeout(falcon->regs + FALCON_IDLESTATE, value,
33 static int falcon_dma_wait_idle(struct falcon *falcon)
37 return readl_poll_timeout(falcon->regs + FALCON_DMATRFCMD, value,
41 static int falcon_copy_chunk(struct falcon *falcon,
51 falcon_writel(falcon, offset, FALCON_DMATRFMOFFS);
52 falcon_writel(falcon, base, FALCON_DMATRFFBOFFS);
53 falcon_writel(falcon, cmd, FALCON_DMATRFCMD);
55 return falcon_dma_wait_idle(falcon);
58 static void falcon_copy_firmware_image(struct falcon *falcon,
61 u32 *virt = falcon->firmware.virt;
69 static int falcon_parse_firmware_image(struct falcon *falcon)
71 struct falcon_fw_bin_header_v1 *bin = (void *)falcon->firmware.virt;
76 dev_err(falcon->dev, "incorrect firmware magic\n");
82 dev_err(falcon->dev, "unsupported firmware version\n");
87 if (bin->size > falcon->firmware.size) {
88 dev_err(falcon->dev, "firmware image size inconsistency\n");
92 os = falcon->firmware.virt + bin->os_header_offset;
94 falcon->firmware.bin_data.size = bin->os_size;
95 falcon->firmware.bin_data.offset = bin->os_data_offset;
96 falcon->firmware.code.offset = os->code_offset;
97 falcon->firmware.code.size = os->code_size;
98 falcon->firmware.data.offset = os->data_offset;
99 falcon->firmware.data.size = os->data_size;
104 int falcon_read_firmware(struct falcon *falcon, const char *name)
109 err = request_firmware(&falcon->firmware.firmware, name, falcon->dev);
113 falcon->firmware.size = falcon->firmware.firmware->size;
118 int falcon_load_firmware(struct falcon *falcon)
120 const struct firmware *firmware = falcon->firmware.firmware;
124 falcon_copy_firmware_image(falcon, firmware);
127 err = falcon_parse_firmware_image(falcon);
129 dev_err(falcon->dev, "failed to parse firmware image\n");
134 falcon->firmware.firmware = NULL;
139 int falcon_init(struct falcon *falcon)
141 falcon->firmware.virt = NULL;
146 void falcon_exit(struct falcon *falcon)
148 if (falcon->firmware.firmware)
149 release_firmware(falcon->firmware.firmware);
152 int falcon_boot(struct falcon *falcon)
158 if (!falcon->firmware.virt)
161 err = readl_poll_timeout(falcon->regs + FALCON_DMACTL, value,
168 falcon_writel(falcon, 0, FALCON_DMACTL);
171 falcon_writel(falcon, (falcon->firmware.iova +
172 falcon->firmware.bin_data.offset) >> 8,
176 for (offset = 0; offset < falcon->firmware.data.size; offset += 256)
177 falcon_copy_chunk(falcon,
178 falcon->firmware.data.offset + offset,
182 falcon_copy_chunk(falcon, falcon->firmware.code.offset,
185 /* setup falcon interrupts */
186 falcon_writel(falcon, FALCON_IRQMSET_EXT(0xff) |
193 falcon_writel(falcon, FALCON_IRQDEST_EXT(0xff) |
201 falcon_writel(falcon, FALCON_ITFEN_MTHDEN |
205 /* boot falcon */
206 falcon_writel(falcon, 0x00000000, FALCON_BOOTVEC);
207 falcon_writel(falcon, FALCON_CPUCTL_STARTCPU, FALCON_CPUCTL);
209 err = falcon_wait_idle(falcon);
211 dev_err(falcon->dev, "Falcon boot failed due to timeout\n");
218 void falcon_execute_method(struct falcon *falcon, u32 method, u32 data)
220 falcon_writel(falcon, method >> 2, FALCON_UCLASS_METHOD_OFFSET);
221 falcon_writel(falcon, data, FALCON_UCLASS_METHOD_DATA);