Hi Igor
On Thu, 2020-01-23 at 13:31 +0200, Igor Opaniuk wrote:
From: Igor Opaniuk igor.opaniuk@toradex.com
Add README with build steps for U-boot and TF-A for Verdin i.MX8MM SoM.
Signed-off-by: Igor Opaniuk igor.opaniuk@toradex.com Reviewed-by: Oleksandr Suvorov oleksandr.suvorov@toradex.com
board/toradex/verdin-imx8mm/README | 81 ++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 board/toradex/verdin-imx8mm/README
diff --git a/board/toradex/verdin-imx8mm/README b/board/toradex/verdin-imx8mm/README new file mode 100644 index 0000000000..857138d4fb --- /dev/null +++ b/board/toradex/verdin-imx8mm/README @@ -0,0 +1,81 @@ +U-Boot for the Toradex Verdin i.MX8MM board
Verdin iMX8M Mini Module
+Quick Start +=========== +- Build the ARM Trusted firmware binary +- Get DDR firmware +- Build U-Boot +- Flash to eMMC +- Boot
+Get and Build the ARM Trusted firmware (Trusted Firmware A) +====================================== +$ echo "Downloading and building TF-A..." +$ git clone -b imx_4.14.78_1.0.0_ga
I suggest to use the later branch imx_4.14.98_2.3.0 which should also include i.MX 8M Nano support now.
https://source.codeaurora.org/external/imx/imx-atf +$ cd imx-atf
+Please edit `plat/imx/imx8mm/include/platform_def.h` so it +contains proper values for UART configuration and BL31 base +address (correct values listed below): +#define BL31_BASE 0x910000 +#define IMX_BOOT_UART_BASE 0x30860000 +#define DEBUG_CONSOLE 1
+Then build ATF (TF-A): +$ make PLAT=imx8mm bl31
+Get the DDR firmware +============================= +$ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.1.1.bin
There is now 8.4.1 available from above mentioned release. However, I believe there were no changes in DDR firmware.
+$ chmod +x firmware-imx-8.1.1.bin +$ ./firmware-imx-8.1.1.bin +$ cp firmware-imx-8.1.1/firmware/ddr/synopsys/lpddr4*.bin ./
+Build U-Boot +============ +$ export CROSS_COMPILE=aarch64-poky-linux-
With a linaro toolchain this would rather be:
aarch64-linux-gnu-
+$ make verdin-imx8mm_defconfig +$ make flash.bin
+Flash to eMMC +=========== +> tftpboot ${loadaddr} flash.bin +> setexpr blkcnt ${filesize} + 0x1ff && setexpr blkcnt ${blkcnt} / 0x200 +> mmc dev 0 1 && mmc write ${loadaddr} 0x2 ${blkcnt}
Or just run update_uboot (;-p).
+Boot +===========
+ATF, U-boot proper and u-boot.dtb images are packed into FIT image, +which is loaded and parsed by SPL.
+Boot sequence is: +SPL ---> ATF (TF-A) ---> U-boot proper
+Output:
+U-Boot SPL 2020.01-01840-gd92bdc79cf-dirty (Jan 22 2020 - 18:50:57 +0200) +Normal Boot +Trying to boot from MMC1 +NOTICE: Configuring TZASC380 +NOTICE: RDC off +NOTICE: BL31: v1.5(release):p9.0.0_1.1.0-ga-20190801-0-gd6451cc1e- dirty +NOTICE: BL31: Built : 17:43:07, Jan 22 2020 +NOTICE: sip svc init
+U-Boot 2020.01-01840-gd92bdc79cf-dirty (Jan 22 2020 - 18:50:57 +0200)
+CPU: Freescale i.MX8MMQ rev1.0 at 0 MHz +Reset cause: POR +DRAM: 2 GiB +MMC: FSL_SDHC: 0, FSL_SDHC: 1 +Loading Environment from MMC... OK +In: serial +Out: serial +Err: serial +Model: Toradex Verdin iMX8M Mini 2GB Wi-Fi / BT IT V1.0A, Serial# 06535148 +Net: Could not get PHY for FEC0: addr 7 +eth0: ethernet@30be0000 +Hit any key to stop autoboot: 0
Cheers
Marcel