FW-WEB Wiki

This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong.
====== U-boot ======

===== NAND =====

compared to bpi-r3 fip is at position 0x580000

<code>
BPI-R4> ls mmc 0:5
  9010412   6.7.0-rc3-dango.itb
      127   uEnv.txt
  9025092   6.6.0-rc2-dango.itb
 24735843   6.6.0-r4-dango
  8941016   6.6.0-r4-dango.itb
  9080636   6.8.0-rc3-dango.itb
 32890100   rootfs_arm64.cpio.gz
   254821   bpi-r4_spim-nand_bl2.img
  9031768   6.7.0-rc5-dango_2.itb
   278533   bpi-r4_spim-nand_fip.bin

10 file(s), 0 dir(s)

BPI-R4> mtd erase spi-nand0
spi-nand: spi_nand spi_nand@0: Winbond SPI NAND was found.
spi-nand: spi_nand spi_nand@0: 128 MiB, block size: 128 KiB, page size: 2048, O4
Erasing 0x00000000 ... 0x07ffffff (1024 eraseblock(s))
BPI-R4> fatload mmc 0:5 $loadaddr bpi-r4_spim-nand_bl2.img
254821 bytes read in 19 ms (12.8 MiB/s)
BPI-R4> mtd write spi-nand0 $loadaddr 0x0 0x100000
Writing 1048576 byte(s) (512 page(s)) at offset 0x00000000
BPI-R4> fatload mmc 0:5 $loadaddr bpi-r4_spim-nand_fip.bin
278533 bytes read in 20 ms (13.3 MiB/s)                                         
BPI-R4> mtd write spi-nand0 $loadaddr 0x580000 0x200000                         
Writing 2097152 byte(s) (1024 page(s)) at offset 0x00580000                     
BPI-R4> reset                                                                   
resetting ...
</code>

===== debug =====
==== devicetree ====

how to display uboot devicetree
<code>
BPI-R4> bdinfo
...
fdt_blob    = 0x00000000ff7fbc90
...
BPI-R4> fdt addr 0x00000000ff7fbc90
BPI-R4> fdt list
BPI-R4> fdt print /pcie@11290000
</code>

==== pinmux ====

<code>
BPI-R4> pinmux list                                                             
| Device                        | Driver                        | Parent        
| pinctrl@1001f000              | mt7988_pinctrl                | root_driver   
BPI-R4> pinmux dev pinctrl@1001f000                                             
dev: pinctrl@1001f000                                                           
BPI-R4> pinmux status                                                           
...
PCIE30_2L : Aux Func.1                                                          
PCIE30_2L : Aux Func.1                                                          
PCIE30_1L : Aux Func.1                                                          
PCIE30_1L : Aux Func.1                                                          
...
PCIE30_2L : Aux Func.1                                                          
PCIE30_1L : Aux Func.1                                                          
...
PCIE30_2L : Aux Func.1                                                          
PCIE30_1L : Aux Func.1                                                          
PCIE30_2L : Aux Func.1                                                          
PCIE30_2L : Aux Func.1                                                          
PCIE30_1L : Aux Func.1                                                          
PCIE30_1L : Aux Func.1
</code>

==== clocks ====

<code>
BPI-R4> clk dump                                                                
 Rate               Usecnt      Name                                            
------------------------------------------                                      
 40000000             0        |-- dummy40m                                     
 208000000            0        |-- dummy208m                                    
 12000000             0        |-- dummy12m                                     
BPI-R4>
</code>