Add command GPT support
Add EMMC boot support
Add the 2 other SDMMC instances for ED1:
- SDMMC2 = mmc 1, eMMC on the ED1 board
- SDMMC3 = extension connector, deactivated by default
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Add minimal devicetree for STM32MP157C-ED1 board,
with only the devices to allow boot from SDCARD:
- RCC for clock and reset
- UART4 for console
- I2C and PMIC
- DDR
- SDMMC0 for SDCard
Waiting Kernel upstream for alignment.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>