4e7c991af5
* Cumulative fixes and updates for MediaTek platform. [1] * Update mt7981 pinctrl driver based on upstream kernel. [2] [1] https://lore.kernel.org/u-boot/cover.1737104723.git.weijie.gao@mediatek.com/ [2] https://lore.kernel.org/u-boot/20250124033902.187796-1-weijie.gao@mediatek.com/ Signed-off-by: Shiji Yang <yangshiji66@qq.com>
82 lines
2.0 KiB
Diff
82 lines
2.0 KiB
Diff
From 1090c6df3767da2c56d5827ba65ce91af8745420 Mon Sep 17 00:00:00 2001
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From: Weijie Gao <weijie.gao@mediatek.com>
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Date: Fri, 17 Jan 2025 17:18:41 +0800
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Subject: [PATCH 13/15] arm: dts: medaitek: add flash interface driving
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settings for mt7988
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Add driving settings for both SPI and SD/eMMC interfaces to support ensure
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flash devices is accessible for ram-booting.
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Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
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---
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arch/arm/dts/mt7988-rfb.dts | 32 ++++++++++++++++++++++++++++++++
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1 file changed, 32 insertions(+)
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--- a/arch/arm/dts/mt7988-rfb.dts
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+++ b/arch/arm/dts/mt7988-rfb.dts
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@@ -101,6 +101,19 @@
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function = "spi";
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groups = "spi0", "spi0_wp_hold";
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};
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+
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+ conf-pu {
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+ pins = "SPI0_CSB", "SPI0_HOLD", "SPI0_WP";
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+ drive-strength = <MTK_DRIVE_8mA>;
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+ bias-pull-up = <MTK_PUPD_SET_R1R0_11>;
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+ };
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+
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+ conf-pd {
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+ pins = "SPI0_CLK", "SPI0_MOSI", "SPI0_MISO";
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+ drive-strength = <MTK_DRIVE_8mA>;
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+ bias-pull-down = <MTK_PUPD_SET_R1R0_11>;
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+ };
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+
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};
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spi2_pins: spi2-pins {
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@@ -108,6 +121,18 @@
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function = "spi";
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groups = "spi2", "spi2_wp_hold";
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};
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+
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+ conf-pu {
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+ pins = "SPI2_CSB", "SPI2_HOLD", "SPI2_WP";
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+ drive-strength = <MTK_DRIVE_8mA>;
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+ bias-pull-up = <MTK_PUPD_SET_R1R0_11>;
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+ };
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+
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+ conf-pd {
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+ pins = "SPI2_CLK", "SPI2_MOSI", "SPI2_MISO";
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+ drive-strength = <MTK_DRIVE_8mA>;
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+ bias-pull-down = <MTK_PUPD_SET_R1R0_11>;
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+ };
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};
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mmc0_pins_default: mmc0default {
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@@ -121,18 +146,25 @@
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"EMMC_DATA_3", "EMMC_DATA_4", "EMMC_DATA_5",
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"EMMC_DATA_6", "EMMC_DATA_7", "EMMC_CMD";
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input-enable;
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+ drive-strength = <MTK_DRIVE_4mA>;
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+ mediatek,pull-up-adv = <1>; /* pull-up 10K */
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};
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conf-clk {
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pins = "EMMC_CK";
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+ drive-strength = <MTK_DRIVE_6mA>;
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+ mediatek,pull-down-adv = <2>; /* pull-down 50K */
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};
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conf-dsl {
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pins = "EMMC_DSL";
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+ mediatek,pull-down-adv = <2>; /* pull-down 50K */
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};
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conf-rst {
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pins = "EMMC_RSTB";
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+ drive-strength = <MTK_DRIVE_4mA>;
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+ mediatek,pull-up-adv = <1>; /* pull-up 10K */
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};
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};
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};
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