diff options
| author | Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> | 2026-01-23 22:59:55 +0000 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2026-03-20 11:22:27 +0100 |
| commit | a7b37f329e5fbeb0f40ef892fc33d1eebfadd7b8 (patch) | |
| tree | 0eb51efc8629bc958b1b06997de8f7d9b64e3910 | |
| parent | 0928a28daf017504e14920f4131bb99e3bc39dba (diff) | |
| download | linux-a7b37f329e5fbeb0f40ef892fc33d1eebfadd7b8.tar.gz linux-a7b37f329e5fbeb0f40ef892fc33d1eebfadd7b8.zip | |
arm64: dts: renesas: r9a09g077m44-rzt2h-evk: Clarify SD0 power jumpers
Clarify the board setup requirements for using SDHI0 on the RZ/T2H EVK by
documenting the CN78 jumper positions needed to supply SD0 power for
either the default eMMC configuration or the SD card slot configuration.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20260123225957.1007089-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
| -rw-r--r-- | arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts index e9639bbb2d70..49464e6d212b 100644 --- a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts +++ b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts @@ -14,12 +14,15 @@ /* * SD0 can be connected to either eMMC (IC49) or SD card slot CN31 * Lets by default enable the eMMC, note we need the below SW settings - * for eMMC. + * for eMMC. Also ensure that CN78 pins 5 and 6 are connected with a jumper + * to provide the SD0 power supply when using eMMC. * SW2[1] = ON; SW2[2] = ON * * To enable SD card and disable eMMC on SDHI0 disable the below macro - * and set the below switch setting: - * SW2[1] = OFF; SW2[2] = ON + * and set the switch as follows. Also ensure that CN78 pins 3 and 4 are connected + * with a jumper to provide the SD0 power supply when using an SD card. + * + * SW2[1] = OFF; SW2[2] = ON. */ #define SD0_EMMC 1 #define SD0_SD (!SD0_EMMC) |