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--- en:bpi-r3:uboot [2023/04/02 14:32] – [nand flash] frank
+++ en:bpi-r3:uboot [2024/04/07 09:39] (current) – [writing emmc] frank
@@ Line 69: / Line 69: @@
   BPI-R3> run newboot
-  #using spi dt-overlay
+  #using dt-overlay config
   BPI-R3> setenv bootconf "#conf-sd-nor" #conf-sd-nor=sd base dts + nor dt overlay
@@ Line 86: / Line 86: @@
 Bootup with sdcard (put spi-nand bl2 + fip with emmc-and usb-support as files on card) and flash them like described [[#nand_flash|here]] then boot from spi (sw2 to boot from spi-nand + change sw6 to have access to emmc) and then [[#writing_emmc|flash emmc]]. Finally change sw2 back to boot from emmc and sw1 has to be changed too.
 ===== nand flash =====
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nand.dtso
 <code>
@@ Line 139: / Line 141: @@
 ===== nor flash =====
-FIXME not complete
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nor.dtso
-  fatload usb 0:1 ${loadaddr} 2023.04/bpi-r3_nor_bl2.img
+<code>
-  MT7986> sf probe
+MT7986> sf probe
-  SF: Detected w25q256 with page size 256 Bytes, erase size 4 KiB, total 32 MiB
+SF: Detected w25q256 with page size 256 Bytes, erase size 4 KiB, total 32 MiB
+MT7986> sf erase 0 0x180000
+SF: 1572864 bytes @ 0x0 Erased: OK
+MT7986> fatload usb 0:1 ${loadaddr} 2023.04/bpi-r3_nor_bl2.img
+bytes read in 21 ms (9.2 MiB/s)
+MT7986> sf write ${loadaddr} 0 0x40000
+device 0 offset 0x0, size 0x40000
+SF: 262144 bytes @ 0x0 Written: OK
+MT7986> fatload usb 0:1 ${loadaddr} 2023.04/bpi-r3_nor_fip.bin
+bytes read in 25 ms (9.7 MiB/s)
+MT7986> sf write ${loadaddr} 0x100000 0x80000
+device 0 offset 0x100000, size 0x80000
+SF: 524288 bytes @ 0x100000 Written: OK
+</code>
+if you get this error on bootup
+  NOTICE:  BL31: Built : 20:24:28, Apr  5 2023
+  No valid device tree binary found at 0000000041e92f20
+  initcall sequence 0000000041e621a8 failed at call 0000000041e57800 (err=-2)
+  ### ERROR ### Please RESET the board ###
+you need to compress bl31
+  xz -f -e -k -9 -C crc32 u-boot.bin
+and use the resulting u-boot.bin.xz as BL33
+==== kernel/initrd ====
+currently untested...
+<code>
+label = "recovery"; //initrd max 10MB
+reg = <0x180000 0xa80000>;
+label = "fit"; //kernel max 20MB
+reg = <0xc00000 0x1400000>;
+</code>
+<code>
+MT7986> sf probe
+SF: Detected w25q256 with page size 256 Bytes, erase size 4 KiB, total 32 MiB
+MT7986> sf erase 0x180000 0xa80000
+SF: 11010048 bytes @ 0x180000 Erased: OK
+MT7986> fatload usb 0:1 ${loadaddr} rootfs_bpi-r3.cpio.zst
+9501203 bytes read in 798 ms (11.4 MiB/s)
+MT7986> sf write ${loadaddr} 0x180000 ${filesize}
+device 0 offset 0x180000, size 0x90fa13
+SF: 9501203 bytes @ 0x180000 Written: OK
+MT7986> sf erase 0xc00000 0x1400000
+SF: 20971520 bytes @ 0xc00000 Erased: OK
+MT7986> fatload usb 0:1 ${loadaddr} bpi-r3-6.1.itb
+8424540 bytes read in 708 ms (11.3 MiB/s)
+MT7986> sf write ${loadaddr} 0xc00000 ${filesize}
+device 0 offset 0xc00000, size 0x808c5c
+SF: 8424540 bytes @ 0xc00000 Written: OK
+</code>
+loading it:
+<code>
+MT7986> setenv useinitrd 'setenv root "/dev/ram0 rw";setenv bootopts "${bootopts} initrd=${rdaddr},20M";'
+MT7986> sf read ${rdaddr} 0x180000 0xa80000
+device 0 offset 0x180000, size 0xa80000
+SF: 11010048 bytes @ 0x180000 Read: OK
+MT7986> sf read ${kaddr} 0xc00000 0x1400000
+device 0 offset 0xc00000, size 0x1400000
+SF: 20971520 bytes @ 0xc00000 Read: OK
+MT7986> setenv bootnor 'run useinitrd;run setbootconf; run buildargs; bootm ${kaddr}${bootconf};'
+MT7986> run bootnor
+</code>
 ===== usb =====
@@ Line 187: / Line 258: @@
 </code>
 ===== writing emmc =====
+:!: newest atf for mediatek needs gpt with fip partition so it must be created first (maybe copy first 1M from sdcard to emmc).
 get emmc/gpt information:
@@ Line 334: / Line 407: @@
 now flash bl2 to boot0 block and fip to fip partition
+short way using my environment:
+<code>
+MT7986> setenv bl2file 2023.04/bpi-r3_emmc_bl2.img
+MT7986> setenv fipfile 2023.04/bpi-r3_emmc_fip.bin
+MT7986> run wremmc
+bl2file=2023.04/bpi-r3_emmc_bl2.img
+bytes read in 20 ms (9.3 MiB/s)
+MMC erase: dev # 0, block # 0, count 1024 ... 1024 blocks erased: OK
+MMC write: dev # 0, block # 0, count 1024 ... 1024 blocks written: OK
+fipfile=2023.04/bpi-r3_emmc_fip.bin
+bytes read in 58 ms (10.6 MiB/s)
+MMC erase: dev # 0, block # 13312, count 4096 ... 4096 blocks erased: OK
+MMC write: dev # 0, block # 13312, count 4096 ... 4096 blocks written: OK
+</code>
+manual way:
+<hidden>
 <code>
 BPI-R3> mmc dev 0
@@ Line 360: / Line 454: @@
 BPI-R3>
 </code>
+</hidden>
 If boot from emmc does not work,maybe bootbus needs to be changed to 0: