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53 lines
1.4 KiB
Diff
53 lines
1.4 KiB
Diff
From f97ba33547711d727fbbcb10eb046f8ac605a966 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Thu, 5 Dec 2019 18:02:08 +0000
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Subject: [PATCH] dts: bcm2711: Move emmc2 to its own "bus"
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Moving the EMMC2 controller under a dedicated bus allows the firmware
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to patch the dma-ranges property for different memory sizes without
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affecting anything else.
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 22 ++++++++++++++++++++++
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1 file changed, 22 insertions(+)
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--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
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+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
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@@ -193,6 +193,8 @@
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#include "bcm2711-rpi.dtsi"
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#include "bcm283x-rpi-csi1-2lane.dtsi"
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+/delete-node/ &emmc2;
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+
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/ {
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chosen {
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bootargs = "coherent_pool=1M 8250.nr_uarts=1";
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@@ -212,6 +214,26 @@
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/delete-property/ ethernet;
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/delete-property/ intc;
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pcie0 = &pcie0;
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+ emmc2bus = &emmc2bus;
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+ };
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+
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+ emmc2bus: emmc2bus {
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+ compatible = "simple-bus";
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+ #address-cells = <2>;
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+ #size-cells = <1>;
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+
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+ ranges = <0x0 0x7e000000 0x0 0xfe000000 0x01800000>;
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+ dma-ranges = <0x0 0xc0000000 0x0 0x00000000 0x3c000000>;
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+
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+ emmc2: emmc2@7e340000 {
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+ compatible = "brcm,bcm2711-emmc2";
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+ status = "okay";
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+ interrupts = <GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>;
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+ clocks = <&clocks BCM2711_CLOCK_EMMC2>;
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+ reg = <0x0 0x7e340000 0x100>;
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+ vqmmc-supply = <&sd_io_1v8_reg>;
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+ broken-cd;
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+ };
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};
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/delete-node/ wifi-pwrseq;
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