The Retronix R-Car V4H Sparrow Hawk EVTB1 uses 1V8 IO voltage supply for VDDQ18_25_AVB power rail. Update the AVB0 pinmux to reflect the change in IO voltage. Since the VDDQ18_25_AVB power rail is shared, all four AVB0, AVB1, AVB2, TSN0 PFC/GPIO POC[7..4] registers have to be configured the same way.
Correct the voltage for EVTA1 boards accordingly by patching the U-Boot control DT in SPL. Signed-off-by: Marek Vasut <[email protected]> --- Cc: Nobuhiro Iwamatsu <[email protected]> Cc: Tom Rini <[email protected]> --- board/renesas/sparrowhawk/sparrowhawk.c | 12 ++++++++++++ .../src/arm64/renesas/r8a779g3-sparrow-hawk.dts | 4 ++++ 2 files changed, 16 insertions(+) diff --git a/board/renesas/sparrowhawk/sparrowhawk.c b/board/renesas/sparrowhawk/sparrowhawk.c index 1fd7a63d2fa..58de7f25cbd 100644 --- a/board/renesas/sparrowhawk/sparrowhawk.c +++ b/board/renesas/sparrowhawk/sparrowhawk.c @@ -231,6 +231,18 @@ void spl_perform_fixups(struct spl_image_info *spl_image) printf("Failed to disable UHS pins in MicroSD node: %d\n", err); return; } + + offs = fdt_path_offset(blob, "/soc/pinctrl@e6050000/avb0/pins-vddq18-25-avb"); + if (offs < 0) { + printf("Failed to locate AVB pinctrl node: %d\n", offs); + return; + } + + err = fdt_setprop_u32(blob, offs, "power-source", 2500); + if (err < 0) { + printf("Failed to set AVB IO voltage: %d\n", err); + return; + } } #endif diff --git a/dts/upstream/src/arm64/renesas/r8a779g3-sparrow-hawk.dts b/dts/upstream/src/arm64/renesas/r8a779g3-sparrow-hawk.dts index 0abfff5fe90..2d8474395c6 100644 --- a/dts/upstream/src/arm64/renesas/r8a779g3-sparrow-hawk.dts +++ b/dts/upstream/src/arm64/renesas/r8a779g3-sparrow-hawk.dts @@ -529,6 +529,10 @@ drive-strength = <21>; }; + pins-vddq18-25-avb { + pins = "PIN_VDDQ_AVB0", "PIN_VDDQ_AVB1", "PIN_VDDQ_AVB2", "PIN_VDDQ_TSN0"; + power-source = <1800>; + }; }; /* Page 28 / CANFD_IF */ -- 2.47.2
