diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0664-dts-bcm2711-EMMC2-can-address-the-whole-first-GB.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0664-dts-bcm2711-EMMC2-can-address-the-whole-first-GB.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0664-dts-bcm2711-EMMC2-can-address-the-whole-first-GB.patch b/target/linux/bcm27xx/patches-5.4/950-0664-dts-bcm2711-EMMC2-can-address-the-whole-first-GB.patch new file mode 100644 index 0000000000..4c5e50636c --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0664-dts-bcm2711-EMMC2-can-address-the-whole-first-GB.patch @@ -0,0 +1,31 @@ +From 4f2da50bb75ec7b74a23e119062d945626398e30 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.com> +Date: Mon, 20 Apr 2020 11:25:18 +0100 +Subject: [PATCH] dts: bcm2711: EMMC2 can address the whole first GB + +Although 0xfc000000 looks like an inaccessible RAM address (due to the +peripheral mappings), with RAM mapped at 0xc0000000 (as it is on the +30/32-bit VPU bus) this is actually 0x3c000000 in the ARM memory space, +which is fine. + +This difference is potentially the cause of some warnings seen in +sdhci_send_command. + +Fixes: "dts: bcm2711: Move emmc2 to its own 'bus'" + +Signed-off-by: Phil Elwell <phil@raspberrypi.com> +--- + arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts ++++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts +@@ -223,7 +223,7 @@ + #size-cells = <1>; + + ranges = <0x0 0x7e000000 0x0 0xfe000000 0x01800000>; +- dma-ranges = <0x0 0xc0000000 0x0 0x00000000 0x3c000000>; ++ dma-ranges = <0x0 0xc0000000 0x0 0x00000000 0x40000000>; + + emmc2: emmc2@7e340000 { + compatible = "brcm,bcm2711-emmc2"; |