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