155 static bool renesas_check_rom(struct pci_dev *pdev)  in renesas_check_rom()  argument
161 	retval = pci_read_config_word(pdev, RENESAS_ROM_STATUS, &rom_status);  in renesas_check_rom()
167 		dev_dbg(&pdev->dev, "External ROM exists\n");  in renesas_check_rom()
174 static int renesas_check_rom_state(struct pci_dev *pdev)  in renesas_check_rom_state()  argument
181 	err = pci_read_config_dword(pdev, RENESAS_FW_VERSION, &version);  in renesas_check_rom_state()
187 	dev_dbg(&pdev->dev, "Found ROM version: %x\n", version);  in renesas_check_rom_state()
192 	err = pci_read_config_word(pdev, RENESAS_ROM_STATUS, &rom_state);  in renesas_check_rom_state()
198 		dev_dbg(&pdev->dev, "ROM exists\n");  in renesas_check_rom_state()
206 			dev_dbg(&pdev->dev, "Unknown ROM status ...\n");  in renesas_check_rom_state()
211 			dev_err(&pdev->dev, "Invalid ROM..");  in renesas_check_rom_state()
219 static int renesas_fw_check_running(struct pci_dev *pdev)  in renesas_fw_check_running()  argument
229 	err = pci_read_config_byte(pdev, RENESAS_FW_STATUS, &fw_state);  in renesas_fw_check_running()
239 		dev_dbg(&pdev->dev, "FW Download Lock is engaged.");  in renesas_fw_check_running()
244 		dev_err(&pdev->dev,  in renesas_fw_check_running()
255 		dev_err(&pdev->dev,  in renesas_fw_check_running()
263 		dev_dbg(&pdev->dev, "FW is not ready/loaded yet.");  in renesas_fw_check_running()
269 		dev_dbg(&pdev->dev, "FW is ready.");  in renesas_fw_check_running()
273 		dev_err(&pdev->dev,  in renesas_fw_check_running()
278 		dev_err(&pdev->dev,  in renesas_fw_check_running()
285 static int renesas_fw_download(struct pci_dev *pdev,  in renesas_fw_download()  argument
303 	err = pci_write_config_byte(pdev, RENESAS_FW_STATUS,  in renesas_fw_download()
310 		err = renesas_fw_download_image(pdev, fw_data, i, false);  in renesas_fw_download()
312 			dev_err(&pdev->dev,  in renesas_fw_download()
325 		err = pci_read_config_byte(pdev, RENESAS_FW_STATUS_MSB,  in renesas_fw_download()
335 		dev_warn(&pdev->dev, "Final Firmware Download step timed out.");  in renesas_fw_download()
341 	err = pci_write_config_byte(pdev, RENESAS_FW_STATUS, 0);  in renesas_fw_download()
347 		err = pci_read_config_byte(pdev, RENESAS_FW_STATUS, &fw_status);  in renesas_fw_download()
357 		err = renesas_fw_check_running(pdev);  in renesas_fw_download()
367 			dev_err(&pdev->dev, "FW Load timedout");  in renesas_fw_download()
378 static void renesas_rom_erase(struct pci_dev *pdev)  in renesas_rom_erase()  argument
383 	dev_dbg(&pdev->dev, "Performing ROM Erase...\n");  in renesas_rom_erase()
384 	retval = pci_write_config_dword(pdev, RENESAS_DATA0,  in renesas_rom_erase()
387 		dev_err(&pdev->dev, "ROM erase, magic word write failed: %d\n",  in renesas_rom_erase()
392 	retval = pci_read_config_byte(pdev, RENESAS_ROM_STATUS, &status);  in renesas_rom_erase()
394 		dev_err(&pdev->dev, "ROM status read failed: %d\n",  in renesas_rom_erase()
399 	retval = pci_write_config_byte(pdev, RENESAS_ROM_STATUS, status);  in renesas_rom_erase()
401 		dev_err(&pdev->dev, "ROM erase set word write failed\n");  in renesas_rom_erase()
409 		retval = pci_read_config_byte(pdev, RENESAS_ROM_STATUS,  in renesas_rom_erase()
419 		dev_dbg(&pdev->dev, "Chip erase timedout: %x\n", status);  in renesas_rom_erase()
421 	dev_dbg(&pdev->dev, "ROM Erase... Done success\n");  in renesas_rom_erase()
424 static bool renesas_setup_rom(struct pci_dev *pdev, const struct firmware *fw)  in renesas_setup_rom()  argument
431 	err = pci_write_config_dword(pdev, RENESAS_DATA0,  in renesas_setup_rom()
437 	err = pci_write_config_byte(pdev, RENESAS_ROM_STATUS,  in renesas_setup_rom()
443 	err = pci_read_config_byte(pdev, RENESAS_ROM_STATUS, &status);  in renesas_setup_rom()
448 		dev_err(&pdev->dev,  in renesas_setup_rom()
455 		err = renesas_fw_download_image(pdev, fw_data, i, true);  in renesas_setup_rom()
457 			dev_err(&pdev->dev,  in renesas_setup_rom()
468 		err = pci_read_config_byte(pdev, RENESAS_ROM_STATUS_MSB,  in renesas_setup_rom()
478 		dev_err(&pdev->dev, "Final Firmware ROM Download step timed out\n");  in renesas_setup_rom()
483 	err = pci_write_config_byte(pdev, RENESAS_ROM_STATUS, 0);  in renesas_setup_rom()
491 		err = pci_read_config_byte(pdev, RENESAS_ROM_STATUS, &status);  in renesas_setup_rom()
493 			dev_err(&pdev->dev, "Read ROM status failed:%d\n",  in renesas_setup_rom()
499 			dev_dbg(&pdev->dev, "Download ROM success\n");  in renesas_setup_rom()
505 		dev_err(&pdev->dev,  in renesas_setup_rom()
510 	dev_dbg(&pdev->dev, "Download to external ROM succeeded\n");  in renesas_setup_rom()
513 	err = pci_write_config_byte(pdev, RENESAS_ROM_STATUS,  in renesas_setup_rom()
516 		dev_err(&pdev->dev, "Set ROM execute failed: %d\n",  in renesas_setup_rom()
525 		err = pci_read_config_byte(pdev, RENESAS_ROM_STATUS, &status);  in renesas_setup_rom()
534 		dev_err(&pdev->dev, "ROM Exec timed out: %x\n", status);  in renesas_setup_rom()
541 	pci_write_config_byte(pdev, RENESAS_ROM_STATUS, 0);  in renesas_setup_rom()
545 static int renesas_load_fw(struct pci_dev *pdev, const struct firmware *fw)  in renesas_load_fw()  argument
551 	rom = renesas_check_rom(pdev);  in renesas_load_fw()
554 		renesas_rom_erase(pdev);  in renesas_load_fw()
557 		rom = renesas_setup_rom(pdev, fw);  in renesas_load_fw()
559 			dev_dbg(&pdev->dev,  in renesas_load_fw()
562 			dev_dbg(&pdev->dev,  in renesas_load_fw()
568 	err = renesas_fw_download(pdev, fw);  in renesas_load_fw()
572 		dev_err(&pdev->dev, "firmware failed to download (%d).", err);  in renesas_load_fw()
576 int renesas_xhci_check_request_fw(struct pci_dev *pdev,  in renesas_xhci_check_request_fw()  argument
587 	has_rom = renesas_check_rom(pdev);  in renesas_xhci_check_request_fw()
589 		err = renesas_check_rom_state(pdev);  in renesas_xhci_check_request_fw()
596 	err = renesas_fw_check_running(pdev);  in renesas_xhci_check_request_fw()
605 	pci_dev_get(pdev);  in renesas_xhci_check_request_fw()
606 	err = firmware_request_nowarn(&fw, fw_name, &pdev->dev);  in renesas_xhci_check_request_fw()
607 	pci_dev_put(pdev);  in renesas_xhci_check_request_fw()
610 			dev_info(&pdev->dev, "failed to load firmware %s, fallback to ROM\n",  in renesas_xhci_check_request_fw()
614 		dev_err(&pdev->dev, "failed to load firmware %s: %d\n",  in renesas_xhci_check_request_fw()
623 	err = renesas_load_fw(pdev, fw);  in renesas_xhci_check_request_fw()