diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-6.1/950-1055-arm-dt-add-dtparams-for-PCIe-reset-timing-override.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-6.1/950-1055-arm-dt-add-dtparams-for-PCIe-reset-timing-override.patch | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-6.1/950-1055-arm-dt-add-dtparams-for-PCIe-reset-timing-override.patch b/target/linux/bcm27xx/patches-6.1/950-1055-arm-dt-add-dtparams-for-PCIe-reset-timing-override.patch new file mode 100644 index 0000000000..a81d0383ac --- /dev/null +++ b/target/linux/bcm27xx/patches-6.1/950-1055-arm-dt-add-dtparams-for-PCIe-reset-timing-override.patch @@ -0,0 +1,59 @@ +From db90a5e5fc2fbd843b29eb8110ed5e03604a2887 Mon Sep 17 00:00:00 2001 +From: Jonathan Bell <jonathan@raspberrypi.com> +Date: Wed, 20 Sep 2023 13:04:54 +0100 +Subject: [PATCH] arm: dt: add dtparams for PCIe reset timing override + +The Pi 5 variant gets two parameters so that the CM4-compatible +name will also work on Pi 5. + +Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com> +--- + arch/arm/boot/dts/bcm2711-rpi-cm4.dts | 2 ++ + arch/arm/boot/dts/bcm2712-rpi-5-b.dts | 2 ++ + arch/arm/boot/dts/overlays/README | 7 +++++++ + 3 files changed, 11 insertions(+) + +--- a/arch/arm/boot/dts/bcm2711-rpi-cm4.dts ++++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts +@@ -446,5 +446,7 @@ i2c_csi_dsi0: &i2c0 { + cam1_reg = <&cam1_reg>,"status"; + cam1_reg_gpio = <&cam1_reg>,"gpio:4", + <&cam1_reg>,"gpio:0=", <&gpio>; ++ ++ pcie_tperst_clk_ms = <&pcie0>,"brcm,tperst-clk-ms:0"; + }; + }; +--- a/arch/arm/boot/dts/bcm2712-rpi-5-b.dts ++++ b/arch/arm/boot/dts/bcm2712-rpi-5-b.dts +@@ -814,6 +814,8 @@ spi10_cs_pins: &spi10_cs_gpio1 {}; + pciex1 = <&pciex1>, "status"; + pciex1_gen = <&pciex1> , "max-link-speed:0"; + pciex1_no_l0s = <&pciex1>, "aspm-no-l0s?"; ++ pciex1_tperst_clk_ms = <&pciex1>, "brcm,tperst-clk-ms:0"; ++ pcie_tperst_clk_ms = <&pciex1>, "brcm,tperst-clk-ms:0"; + random = <&random>, "status"; + rtc_bbat_vchg = <&rpi_rtc>, "trickle-charge-microvolt:0"; + spi = <&spi0>, "status"; +--- a/arch/arm/boot/dts/overlays/README ++++ b/arch/arm/boot/dts/overlays/README +@@ -280,6 +280,10 @@ Params: + (2711 only, but not applicable on CM4S) + N.B. USB-A ports on 4B are subsequently disabled + ++ pcie_tperst_clk_ms Add N milliseconds between PCIe reference clock ++ activation and PERST# deassertion ++ (CM4 and 2712, default "0") ++ + pciex1 Set to "on" to enable the external PCIe link + (2712 only, default "off") + +@@ -290,6 +294,9 @@ Params: + PCIe link for devices that have broken + implementations (2712 only, default "off") + ++ pciex1_tperst_clk_ms Alias for pcie_tperst_clk_ms ++ (2712 only, default "0") ++ + spi Set to "on" to enable the spi interfaces + (default "off") + |