U-Boot 2015.04-14409-g6cf684a-dirty (Sep 19 2016 - 17:19:58)
CPU: Freescale i.MX6DL rev1.2 at 792 MHz
CPU: Temperature 48 C
Reset cause: POR
Board: MX6-SabreSD
I2C: ready
DRAM: 1 GiB
PMIC: PFUZE100 ID=0x10
MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
*** Warning - bad CRC, using default environment
No panel detected: default to Hannstar-XGA
Display: Hannstar-XGA (1024x768)
In: serial
Out: serial
Err: serial
check_and_clean: reg 0, flag_set 0
Fastboot: Normal
flash target is MMC:1
Net: FEC [PRIME]
Error: FEC address not set.
Normal Boot
Hit any key to stop autoboot: 0
boota mmc1
kernel @ 14008000 (8398664)
ramdisk @ 15000000 (1035019)
fdt @ 14f00000 (44589)
## Booting Android Image at 0x12000000 ...
Kernel load addr 0x14008000 size 8202 KiB
Kernel command line: console=ttymxc0,115200n8 earlyprintk init=/init video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:off video=mxcfb2:off video=mxcfb3:off vmalloc=256M androidboot.console=ttymxc0 consoleblank=0 androidboot.hardware=freescale cma=384M
## Flattened Device Tree blob at 14f00000
Booting using the fdt blob at 0x14f00000
Loading Kernel Image ... OK
Using Device Tree in place at 14f00000, end 14f0de2c
switch to ldo_bypass mode!
Starting kernel ...
I have some questions about this issue.
1. Is the step going to Kernel or Uboot ?
2. We modify the bootloader
1) uart1_pads pinmux
MX6_PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
MX6_PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
2) DDR 352MHz
reg 0x020C4018 value 0x000A8324
3. For imx6dl, how can I modify pinmux and DDR clock on Kernel ?
Hi bordon
1. one can debug it using AN4553 Using Open Source Debugging Tools
for Linux on i.MX Processors
http://www.nxp.com/files/32bit/doc/app_note/AN4553.pdf
2. not sure that this will work as linux uses own clock framework
where each clock depends on other, so changing one clock may affect
another. Please check thoroughly all clocks dependecies in
linux/arch/arm/mach-imx/clk-imx6q.c
https://www.kernel.org/doc/Documentation/clk.txt
3. please check
http://elinux.org/images/b/b8/Elc2013_Clement.pdf
http://boundarydevices.com/mx6-device-tree-customization/
Best regards
igor
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