Add back low drive mode 1866mts ddr timing file, no need
CONFIG_IMX9_LOW_DRIVE_MODE anymore, using runtime selection.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Remove unused CONFIG_IMX9_LOW_DRIVE_MODE kconfig and
imx93_11x11_evk_ld_defconfig.
Remove the ld timing file.
The LD mode support will be added back with runtime detection later.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Add a static u-boot config for i.MX93 low drive mode support. When
low drive mode is enabled, VDD_SOC is set to 0.75V. Bus clocks,
A55 core clock (900Mhz), DDR clock (1866MTS), and some peripherals
clocks (USDHC/FLEXSPI/PDM/DISP_PIX/CAM_PIX) must decrease to meet
max frequencies in low drive mode.
Also set standby voltage for buck1
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
