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charset="utf-8" AM62p SK has external pullups on DATA 1-3 pins [0]. Remove internal pullups considering: - having both internal and external pullups reduces the total pull-up resistance < 10K resulting in unnecessary power consumption - mismatched pullup resistace between D0 and D1-D3 may cause potential issues for modes with tighter timing requirements. The different pull-up values cause different rise/fall times on each data line. Fixes: c00504ea42c0 ("arm64: dts: ti: k3-am62p5-sk: Updates for SK EVM") [0] https://www.ti.com/lit/zip/SPRR487 Signed-off-by: Judith Mendez Reviewed-by: Moteen Shah --- arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/= ti/k3-am62p5-sk.dts index 4f7f6f95b02ef..35baa777b9121 100644 --- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts @@ -271,9 +271,9 @@ main_mmc1_pins_default: main-mmc1-default-pins { AM62PX_IOPAD(0x023c, PIN_INPUT, 0) /* (H20) MMC1_CMD */ AM62PX_IOPAD(0x0234, PIN_OUTPUT, 0) /* (J24) MMC1_CLK */ AM62PX_IOPAD(0x0230, PIN_INPUT, 0) /* (H21) MMC1_DAT0 */ - AM62PX_IOPAD(0x022c, PIN_INPUT_PULLUP, 0) /* (H23) MMC1_DAT1 */ - AM62PX_IOPAD(0x0228, PIN_INPUT_PULLUP, 0) /* (H22) MMC1_DAT2 */ - AM62PX_IOPAD(0x0224, PIN_INPUT_PULLUP, 0) /* (H25) MMC1_DAT3 */ + AM62PX_IOPAD(0x022c, PIN_INPUT, 0) /* (H23) MMC1_DAT1 */ + AM62PX_IOPAD(0x0228, PIN_INPUT, 0) /* (H22) MMC1_DAT2 */ + AM62PX_IOPAD(0x0224, PIN_INPUT, 0) /* (H25) MMC1_DAT3 */ AM62PX_IOPAD(0x0240, PIN_INPUT, 0) /* (D23) MMC1_SDCD */ >; 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charset="utf-8" AM62L EVM has external pullups on MMC0 CMD and D0 pins [0]. Remove internal pullups considering: - having both internal and external pullups reduces the total pull-up resistance < 47K resulting in a value below the spec recommended 50K ohms - having both pullups results in unnecessary power consumption Fixes: 00fb4c73b67d ("arm64: dts: ti: k3-am62l: add initial reference board= file") [0] https://www.ti.com/lit/zip/SPRCAL6 Signed-off-by: Judith Mendez Reviewed-by: Moteen Shah --- arch/arm64/boot/dts/ti/k3-am62l3-evm.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts b/arch/arm64/boot/dts= /ti/k3-am62l3-evm.dts index cae04cce33736..5085cd255fcd5 100644 --- a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts @@ -253,9 +253,9 @@ AM62LX_IOPAD(0x01e0, PIN_INPUT_PULLUP, 0) /* (D8) I2C2_= SDA */ =20 mmc0_pins_default: mmc0-default-pins { pinctrl-single,pins =3D < - AM62LX_IOPAD(0x0214, PIN_INPUT_PULLUP, 0) /* (D2) MMC0_CMD */ + AM62LX_IOPAD(0x0214, PIN_INPUT, 0) /* (D2) MMC0_CMD */ AM62LX_IOPAD(0x020c, PIN_OUTPUT, 0) /* (B2) MMC0_CLK */ - AM62LX_IOPAD(0x0208, PIN_INPUT_PULLUP, 0) /* (D3) MMC0_DAT0 */ + AM62LX_IOPAD(0x0208, PIN_INPUT, 0) /* (D3) MMC0_DAT0 */ AM62LX_IOPAD(0x0204, PIN_INPUT_PULLUP, 0) /* (D4) MMC0_DAT1 */ AM62LX_IOPAD(0x0200, PIN_INPUT_PULLUP, 0) /* (C1) MMC0_DAT2 */ AM62LX_IOPAD(0x01fc, PIN_INPUT_PULLUP, 0) /* (C2) MMC0_DAT3 */ --=20 2.52.0 From nobody Fri Apr 17 23:05:01 2026 Received: from DM1PR04CU001.outbound.protection.outlook.com (mail-centralusazon11010052.outbound.protection.outlook.com [52.101.61.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 15EB42857FC; 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charset="utf-8" AM62L EVM has external pullups on MMC1 D1-D3 pins [0]. Remove internal pullups considering: - having both internal and external pullups reduces the total pull-up resistance < 47K resulting in unnecessary power consumption - mismatched pullup resistace between D0 and D1-D3 may cause potential issues for modes with tighter timing requirements. The different pull-up values cause different rise/fall times on each data line. Fixes: 00fb4c73b67d ("arm64: dts: ti: k3-am62l: add initial reference board= file") [0] https://www.ti.com/lit/zip/SPRCAL6 Signed-off-by: Judith Mendez Reviewed-by: Moteen Shah --- arch/arm64/boot/dts/ti/k3-am62l3-evm.dts | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts b/arch/arm64/boot/dts= /ti/k3-am62l3-evm.dts index 5085cd255fcd5..98e58d3e7d752 100644 --- a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts @@ -272,9 +272,9 @@ mmc1_pins_default: mmc1-default-pins { AM62LX_IOPAD(0x0230, PIN_INPUT, 0) /* (Y3) MMC1_CMD */ AM62LX_IOPAD(0x0228, PIN_OUTPUT, 0) /* (Y2) MMC1_CLK */ AM62LX_IOPAD(0x0224, PIN_INPUT, 0) /* (AA1) MMC1_DAT0 */ - AM62LX_IOPAD(0x0220, PIN_INPUT_PULLUP, 0) /* (Y4) MMC1_DAT1 */ - AM62LX_IOPAD(0x021c, PIN_INPUT_PULLUP, 0) /* (AA2) MMC1_DAT2 */ - AM62LX_IOPAD(0x0218, PIN_INPUT_PULLUP, 0) /* (AB2) MMC1_DAT3 */ + AM62LX_IOPAD(0x0220, PIN_INPUT, 0) /* (Y4) MMC1_DAT1 */ + AM62LX_IOPAD(0x021c, PIN_INPUT, 0) /* (AA2) MMC1_DAT2 */ + AM62LX_IOPAD(0x0218, PIN_INPUT, 0) /* (AB2) MMC1_DAT3 */ AM62LX_IOPAD(0x0234, PIN_INPUT, 0) /* (B6) MMC1_SDCD */ >; 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charset="utf-8" AM62 LP SK board does not have external pullups on MMC0 D1-D7 pins [0], enable internal pullups considering: - floating lines violate JDEC spec recommendations - mismatched pullup resistace between D0 and D1-D7 may cause potential issues for modes with tighter timing requirements. The different pull-up values cause different rise/fall times on each data line. Fixes: a0b8da04153e ("arm64: dts: ti: k3-am62*: Move eMMC pinmux to top lev= el board file") [0] https://www.ti.com/lit/zip/SPRR471 Signed-off-by: Judith Mendez Reviewed-by: Moteen Shah --- arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts b/arch/arm64/boot/dts= /ti/k3-am62-lp-sk.dts index 3e2d8f6695351..8a556fbbe08b7 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts @@ -88,13 +88,13 @@ main_mmc0_pins_default: main-mmc0-default-pins { AM62X_IOPAD(0x220, PIN_INPUT, 0) /* (V3) MMC0_CMD */ AM62X_IOPAD(0x218, PIN_INPUT, 0) /* (Y1) MMC0_CLK */ AM62X_IOPAD(0x214, PIN_INPUT, 0) /* (V2) MMC0_DAT0 */ - AM62X_IOPAD(0x210, PIN_INPUT, 0) /* (V1) MMC0_DAT1 */ - AM62X_IOPAD(0x20c, PIN_INPUT, 0) /* (W2) MMC0_DAT2 */ - AM62X_IOPAD(0x208, PIN_INPUT, 0) /* (W1) MMC0_DAT3 */ - AM62X_IOPAD(0x204, PIN_INPUT, 0) /* (Y2) MMC0_DAT4 */ - AM62X_IOPAD(0x200, PIN_INPUT, 0) /* (W3) MMC0_DAT5 */ - AM62X_IOPAD(0x1fc, PIN_INPUT, 0) /* (W4) MMC0_DAT6 */ - AM62X_IOPAD(0x1f8, PIN_INPUT, 0) /* (V4) MMC0_DAT7 */ + AM62X_IOPAD(0x210, PIN_INPUT_PULLUP, 0) /* (V1) MMC0_DAT1 */ + AM62X_IOPAD(0x20c, PIN_INPUT_PULLUP, 0) /* (W2) MMC0_DAT2 */ + AM62X_IOPAD(0x208, PIN_INPUT_PULLUP, 0) /* (W1) MMC0_DAT3 */ + AM62X_IOPAD(0x204, PIN_INPUT_PULLUP, 0) /* (Y2) MMC0_DAT4 */ + AM62X_IOPAD(0x200, PIN_INPUT_PULLUP, 0) /* (W3) MMC0_DAT5 */ + AM62X_IOPAD(0x1fc, PIN_INPUT_PULLUP, 0) /* (W4) MMC0_DAT6 */ + AM62X_IOPAD(0x1f8, PIN_INPUT_PULLUP, 0) /* (V4) MMC0_DAT7 */ >; }; =20 --=20 2.52.0