From: Lad Prabhakar Date: Fri, 23 Jan 2026 22:59:56 +0000 (+0000) Subject: arm64: dts: renesas: r9a09g087m44-rzn2h-evk: Clarify SD0 power jumper setup X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=f01be0fa24b139a6f6676244a2f721244d7efc44;p=thirdparty%2Fkernel%2Flinux.git arm64: dts: renesas: r9a09g087m44-rzn2h-evk: Clarify SD0 power jumper setup Document the required JP23 jumper positions for supplying SD0 when selecting between the onboard eMMC and the SD card slot. Signed-off-by: Lad Prabhakar Reviewed-by: Geert Uytterhoeven Link: https://patch.msgid.link/20260123225957.1007089-4-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Geert Uytterhoeven --- diff --git a/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts b/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts index 19f0a2c067530..4c0fe5c7e8aae 100644 --- a/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts +++ b/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts @@ -14,12 +14,14 @@ /* * SD0 can be connected to either eMMC (U33) or SD card slot CN21 * Lets by default enable the eMMC, note we need the below SW settings - * for eMMC. + * for eMMC. Also ensure that JP23 pins 5 and 6 are connected with a jumper + * to provide the SD0 power supply when using eMMC. * DSW5[1] = ON; DSW5[2] = ON * DSW17[5] = OFF; DSW17[6] = ON * * To enable SD card and disable eMMC on SDHI0 disable the below macro - * and set the below switch setting: + * and set the below switch settings. Also ensure that JP23 pins 3 and 4 are + * connected with a jumper to provide the SD0 power supply when using an SD card. * DSW5[1] = OFF; DSW5[2] = ON * P22_6 = SD0_WP; DSW15[1] = OFF; DSW15[2] = ON * P22_5 = SD0_CD; DSW15[3] = OFF; DSW15[4] = ON