Re: [PATCH 09/10] arm64: dts: imx8ulp-evk: add 100MHz/200MHz pinctrl setting for eMMC
From: Shawn Guo <shawnguo@kernel.org>
Date: 2023-07-18 03:32:52
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On Sun, Jun 25, 2023 at 08:42:37PM +0800, Peng Fan (OSS) wrote:
quoted hunk ↗ jump to hunk
From: Haibo Chen <haibo.chen@nxp.com> Add 100MHz and 200MHz pinctrl setting for eMMC, and enable 8 bit bus mode to config the eMMC work at HS400ES mode. Also update to use Standard Drive Strength for USDHC pad to get a better signal quality per Hardware team suggests. Reviewed-by: Sherry Sun <redacted> Signed-off-by: Haibo Chen <haibo.chen@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> --- arch/arm64/boot/dts/freescale/imx8ulp-evk.dts | 26 ++++++++++--------- 1 file changed, 14 insertions(+), 12 deletions(-)diff --git a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts index e459dc35e469..ab7af705bbca 100644 --- a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts@@ -121,9 +121,11 @@ &lpuart5 { }; &usdhc0 { - pinctrl-names = "default", "sleep"; + pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep"; pinctrl-0 = <&pinctrl_usdhc0>; pinctrl-1 = <&pinctrl_usdhc0>; + pinctrl-2 = <&pinctrl_usdhc0>; + pinctrl-3 = <&pinctrl_usdhc0>;
All three speed modes use the same pinctrl? Shawn
quoted hunk ↗ jump to hunk
non-removable; bus-width = <8>; status = "okay";@@ -202,17 +204,17 @@ MX8ULP_PAD_PTF15__LPUART5_RX 0x3 pinctrl_usdhc0: usdhc0grp { fsl,pins = < - MX8ULP_PAD_PTD1__SDHC0_CMD 0x43 - MX8ULP_PAD_PTD2__SDHC0_CLK 0x10042 - MX8ULP_PAD_PTD10__SDHC0_D0 0x43 - MX8ULP_PAD_PTD9__SDHC0_D1 0x43 - MX8ULP_PAD_PTD8__SDHC0_D2 0x43 - MX8ULP_PAD_PTD7__SDHC0_D3 0x43 - MX8ULP_PAD_PTD6__SDHC0_D4 0x43 - MX8ULP_PAD_PTD5__SDHC0_D5 0x43 - MX8ULP_PAD_PTD4__SDHC0_D6 0x43 - MX8ULP_PAD_PTD3__SDHC0_D7 0x43 - MX8ULP_PAD_PTD11__SDHC0_DQS 0x10042 + MX8ULP_PAD_PTD1__SDHC0_CMD 0x3 + MX8ULP_PAD_PTD2__SDHC0_CLK 0x10002 + MX8ULP_PAD_PTD10__SDHC0_D0 0x3 + MX8ULP_PAD_PTD9__SDHC0_D1 0x3 + MX8ULP_PAD_PTD8__SDHC0_D2 0x3 + MX8ULP_PAD_PTD7__SDHC0_D3 0x3 + MX8ULP_PAD_PTD6__SDHC0_D4 0x3 + MX8ULP_PAD_PTD5__SDHC0_D5 0x3 + MX8ULP_PAD_PTD4__SDHC0_D6 0x3 + MX8ULP_PAD_PTD3__SDHC0_D7 0x3 + MX8ULP_PAD_PTD11__SDHC0_DQS 0x10002 >; }; };-- 2.37.1
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