kernel:imx8qm平台下fastboot烧写spi_norflash
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在fastboot的功能里面实现烧写flexspi的uboot到nor_flash上面
643 修改:
644 uboot/drivers/usb/gadget/f_fastboot.c
645 @@ -25,6 +25,9 @@
646 #include <linux/compiler.h>
647 #include <version.h>
648 #include <g_dnl.h>
649 +#include <spi.h>
650 +#include <spi_flash.h>
651 +#include <dm/device-internal.h>
652 #ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV
653 #include <fb_mmc.h>
654 #endif
655 @@ -234,6 +237,9 @@ static struct usb_gadget_strings *fastboot_strings[] = {
656 #define TEE_HWPARTITION_ID 2
657 #endif
658
659 +#define ANDROID_BOOTLOADER_NOR_OFFSET 0x0 //0 offset
660 +#define ANDROID_BOOTLOADER_NOR_SIZE 0x100000 //1MB size
661 #define ANDROID_MBR_OFFSET 0
662 #define ANDROID_MBR_SIZE 0x200
663 #ifdef CONFIG_BOOTLOADER_OFFSET_33K
664 @@ -259,8 +265,11 @@ struct fastboot_device_info fastboot_devinfo;
665 enum {
666 PTN_GPT_INDEX = 0,
667 PTN_TEE_INDEX,
668 + PTN_BOOTLOADER_NOR_INDEX,
669 PTN_BOOTLOADER_INDEX,
670 + PTN_MAX_INDEX,
671 };
672
673 static unsigned int download_bytes_unpadded;
674
675 static struct cmd_fastboot_interface interface = {
676 @@ -639,6 +648,60 @@ int write_backup_gpt(void)
677 return 0;
678 }
679
680 +int save_img_to_nor(uchar *buff, u32 start_address, size_t len)
681 +{
682 +#if 1
683 +#ifdef CONFIG_DM_SPI_FLASH
684 + int ret = 0;
685 + unsigned int bus = 0;
686 + unsigned int cs = 0;
687 + unsigned int speed = 29000000;
688 + unsigned int mode = 0;
689 + struct spi_flash *flash;
690 + struct udevice *new, *bus_dev;
691 +
692 + /* Remove the old device, otherwise probe will just be a nop */
693 + ret = spi_find_bus_and_cs(bus, cs, &bus_dev, &new);
694 + if (!ret) {
695 + device_remove(new);
696 + }
697 + flash = NULL;
698 + ret = spi_flash_probe_bus_cs(bus, cs, speed, mode, &new);
699 + if (ret) {
700 + printf("Failed to initialize SPI flash at %u:%u (error %d)\n",
701 + bus, cs, ret);
702 + return 1;
703 + }else
704 + {
705 + printf(" Initialize SPI flash at %u:%u with speed %u; mode %u(success %d)\n",
706 + bus, cs, speed, mode, ret);
707 + };
708 +
709 + flash = dev_get_uclass_priv(new);
710 +
711 + ret = spi_flash_erase(flash, start_address , len);
712 + printf("SF: %zu bytes @ %#x Erased: %s\n", (size_t)len, (u32)start_address,
713 + ret ? "ERROR" : "OK");
714 + if (ret) {
715 + printf("SPI flash erase failed\n");
716 + return 1;
717 + }
718 +
719 + ret = spi_flash_write(flash, start_address, len, buff);
720 + printf("SF: %zu bytes @ %#x : Written\n", (size_t)len, (u32)start_address);
721 + if (ret) {
722 + printf("SPI flash write failed\n");
723 + return 1;
724 + }
725 +#endif
726 + return ret;
727 +#endif
728 + printf("save_img_to_nor back\n");
729 + return 0;
730 +}
731 +
732 +
733 static void process_flash_mmc(const char *cmdbuf)
734 {
735 if (download_bytes) {
736 @@ -660,6 +723,16 @@ static void process_flash_mmc(const char *cmdbuf)
737 ptn = fastboot_flash_find_ptn(cmdbuf);
738 if (ptn == NULL) {
739 fastboot_fail("partition does not exist");
740 + } else if (memcmp(ptn->name, "bootloader_nor", 14) == 0){
741 + printf("writing to partition '%s'\n", ptn->name);
742 +
743 + if (save_img_to_nor(interface.transfer_buffer, ptn->start, ptn->length)) {
744 + printf("Writing '%s' FAILED!\n", ptn->name);
745 + fastboot_fail("Write partition");
746 + } else {
747 + printf("Writing '%s' DONE!\n", ptn->name);
748 + fastboot_okay("OKAY");
749 + }
750 } else if ((download_bytes >
751 ptn->length * MMC_SATA_BLOCK_SIZE) &&
752 !(ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_ENV)) {
753 @@ -967,7 +1040,7 @@ static int _fastboot_parts_add_ptable_entry(int ptable_index,
754 if (part_get_info(dev_desc,
755 mmc_dos_partition_index, &info)) {
756 debug("Bad partition index:%d for partition:%s\n",
757 - mmc_dos_partition_index, name);
758 + mmc_dos_partition_index, (const char *)info.name);
759 return -1;
760 }
761 ptable[ptable_index].start = info.start;
762 @@ -1072,6 +1145,11 @@ static int _fastboot_parts_load_from_ptable(void)
763 ptable[PTN_TEE_INDEX].partition_id = TEE_HWPARTITION_ID;
764 strcpy(ptable[PTN_TEE_INDEX].fstype, "raw");
765
766 + /* Bootloader_nor */
767 + strcpy(ptable[PTN_BOOTLOADER_NOR_INDEX].name, "bootloader_nor");
768 + ptable[PTN_BOOTLOADER_NOR_INDEX].start = ANDROID_BOOTLOADER_NOR_OFFSET;
769 + ptable[PTN_BOOTLOADER_NOR_INDEX].length = ANDROID_BOOTLOADER_NOR_SIZE;
770 +
771 /* Bootloader */
772 strcpy(ptable[PTN_BOOTLOADER_INDEX].name, FASTBOOT_PARTITION_BOOTLOADER);
773 ptable[PTN_BOOTLOADER_INDEX].start =
774 @@ -1085,7 +1163,7 @@ static int _fastboot_parts_load_from_ptable(void)
775 int tbl_idx;
776 int part_idx = 1;
777 int ret;
778 - for (tbl_idx = PTN_BOOTLOADER_INDEX + 1; tbl_idx < MAX_PTN; tbl_idx++) {
779 + for (tbl_idx = PTN_MAX_INDEX; tbl_idx < MAX_PTN; tbl_idx++) {
780 ret = _fastboot_parts_add_ptable_entry(tbl_idx,
781 part_idx++,
782 user_partition,
783 @@ -1095,7 +1173,7 @@ static int _fastboot_parts_load_from_ptable(void)
784 if (ret)
785 break;
786 }
787 - for (i = 0; i <= part_idx; i++)
788 + for (i = 0; i <= tbl_idx-1; i++)
789 fastboot_flash_add_ptn(&ptable[i]);
790
791 return 0;
792
793 uboot/drivers/mtd/spi/spi_flash_ids.c
794 @@ -135,6 +135,7 @@ const struct spi_flash_info spi_flash_ids[] = {
795 {"n25q1024a", INFO(0x20bb21, 0x0, 64 * 1024, 2048, RD_FULL | WR_QPP | E_FSR | SECT_4K) },
796 {"mt25qu02g", INFO(0x20bb22, 0x0, 64 * 1024, 4096, RD_FULL | WR_QPP | E_FSR | SECT_4K) },
797 {"mt25ql02g", INFO(0x20ba22, 0x0, 64 * 1024, 4096, RD_FULL | WR_QPP | E_FSR | SECT_4K) },
798 //+ {"mt35xu256aba", INFO(0x2c5b19, 0x0, 128 * 1024, 256, E_FSR | SECT_4K) },
799 + {"mt35xu256aba", INFO(0x2c5b19, 0x0, 128 * 1024, 256, E_FSR) },
800 {"mt35xu512aba", INFO(0x2c5b1a, 0x0, 128 * 1024, 512, E_FSR) },
801 #endif
802 #ifdef CONFIG_SPI_FLASH_SST /* SST */
803
804
805 uboot/configs/mx8qm_lpddr4_vinson_android_defconfig
806 @@ -45,7 +45,8 @@ CONFIG_FSL_FSPI=y
807 CONFIG_DM_SPI=y
808 CONFIG_DM_SPI_FLASH=y
809 CONFIG_SPI_FLASH=y
810 -CONFIG_SPI_FLASH_BAR=y
811 +CONFIG_QSPI_BOOT=y
812 +CONFIG_SPI_FLASH_4BYTES_ADDR=y
813 +CONFIG_SPI_FLASH_USE_4K_SECTORS=y
814 CONFIG_SPI_FLASH_STMICRO=y
815 CONFIG_CMD_SF=y
816
817 uboot/arch/arm/dts/fsl-imx8qm-lpddr4-vinson.dts
818 @@ -398,7 +398,7 @@
819 pinctrl-0 = <&pinctrl_flexspi0>;
820 status = "okay";
821
822 - flash0: mt35xu512aba@0 {
823 + flash0: mt35xu256aba@0 {
824 reg = <0>;
825 #address-cells = <1>;
826 #size-cells = <1>;
827
828
代码解释至此，fastboot支持烧写bootloader_nor分区，并且能够正常的烧写启动。
涉及修改的是在bootloader中fastboot工具实现的数据烧写逻辑。此外，在处理setctor4k相关标记时遇到了问题。因此决定移除该标记。即每次对nor_flash进行重置操作时都会完全清除。此外，在nxp release版本中的imx8 bootloader中有关于分区显示逻辑存在一些问题。我也做了相应的调整和优化
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