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linux-remarkable2: Initial commit of reMarkable2 Linux branch

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Signed-off-by: Alistair Francis <alistair@alistair23.me>
This commit is contained in:
Alistair Francis 2021-01-16 21:21:45 -08:00 committed by Otavio Salvador
parent 01df375846
commit 398e73f281
2 changed files with 83 additions and 0 deletions
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66
recipes-kernel/linux/linux-remarkable2/0001-zero-sugar-Print-output-on-UART6.patch Normal file
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@ -0,0 +1,66 @@
From b2467adeb7d3a1d4395ba49e5e9f7a6bbf918042 Mon Sep 17 00:00:00 2001
From: Alistair Francis <alistair@alistair23.me>
Date: Sat, 16 Jan 2021 21:21:01 -0800
Subject: [PATCH] zero-sugar: Print output on UART6
Signed-off-by: Alistair Francis <alistair@alistair23.me>
---
arch/arm/boot/dts/zero-sugar.dts | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/zero-sugar.dts b/arch/arm/boot/dts/zero-sugar.dts
index 8aa62bc2c468..aa7327d47e18 100644
--- a/arch/arm/boot/dts/zero-sugar.dts
+++ b/arch/arm/boot/dts/zero-sugar.dts
@@ -50,7 +50,7 @@
compatible = "fsl,imx7d-sdb", "fsl,imx7d";
chosen {
- stdout-path = &uart1;
+ stdout-path = &uart6;
};
memory {
@@ -617,7 +617,8 @@
};
&uart6 {
- /* Pinctrl is defined under 'otgcontrol' driver, which will switch the pinmuxing as required */
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart6>;
assigned-clocks = <&clks IMX7D_UART6_ROOT_SRC>;
assigned-clock-parents = <&clks IMX7D_OSC_24M_CLK>;
status = "okay";
@@ -791,6 +792,13 @@
>;
};
+ pinctrl_uart6: uart6grp {
+ fsl,pins = <
+ MX7D_PAD_EPDC_DATA09__UART6_DCE_TX 0x79
+ MX7D_PAD_EPDC_DATA08__UART6_DCE_RX 0x79
+ >;
+ };
+
pinctrl_usdhc2: usdhc2grp {
fsl,pins = <
MX7D_PAD_SD2_CMD__SD2_CMD 0x59
@@ -912,13 +920,13 @@
pinctrl_one_wire_uart6_tx: one_wire_uart6_tx_grp {
fsl,pins = <
MX7D_PAD_EPDC_DATA08__GPIO2_IO8 0x00000004
- MX7D_PAD_EPDC_DATA09__UART6_DCE_TX 0x00000004
+ MX7D_PAD_EPDC_DATA09__UART6_DCE_TX 0x00000079
>;
};
pinctrl_one_wire_uart6_rx: one_wire_uart6_rx_grp {
fsl,pins = <
- MX7D_PAD_EPDC_DATA08__UART6_DCE_RX 0x00000004
+ MX7D_PAD_EPDC_DATA08__UART6_DCE_RX 0x00000079
MX7D_PAD_EPDC_DATA09__GPIO2_IO9 0x00000004
>;
};
--
2.29.2

17
recipes-kernel/linux/linux-remarkable2_4.14.bb Normal file
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require recipes-kernel/linux/linux-imx.inc
SUMMARY = "Linux kernel for the reMarkable2"
PV_append = "4.14.78+git${SRCPV}"
LINUX_VERSION = "4.14.78"
SRC_URI = "git://github.com/reMarkable/linux.git;protocol=git;branch=${SRCBRANCH} \
file://0001-zero-sugar-Print-output-on-UART6.patch \
"
SRCBRANCH = "zero-sugar"
SRCREV = "d4e7e07a390f8b2544ca09d69142d18114149004"
KBUILD_DEFCONFIG = "zero-sugar_defconfig"
DEPENDS += "lzop-native bc-native"
COMPATIBLE_MACHINE = "(imx7d-remarkable2)"