diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0727-bcm2711-Retain-support-for-old-dtbs.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0727-bcm2711-Retain-support-for-old-dtbs.patch | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0727-bcm2711-Retain-support-for-old-dtbs.patch b/target/linux/brcm2708/patches-4.19/950-0727-bcm2711-Retain-support-for-old-dtbs.patch new file mode 100644 index 0000000000..14f086c5c8 --- /dev/null +++ b/target/linux/brcm2708/patches-4.19/950-0727-bcm2711-Retain-support-for-old-dtbs.patch @@ -0,0 +1,55 @@ +From 7d7f6a80f12fb6e7ba903d070512970e304bcd02 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Wed, 9 Oct 2019 17:22:07 +0100 +Subject: [PATCH] bcm2711: Retain support for old dtbs + +The recent series switching to bcm2711 as the DT identifier broke Pis +running with old DTBs. Add some bcm2838 compatible strings as a +temporary measure, at least until the next full Raspbian image with +bcm2711 DTBs. + +See: https://github.com/raspberrypi/linux/pull/3244 + +Signed-off-by: Phil Elwell <phil@raspberrypi.org> +--- + arch/arm/mach-bcm/board_bcm2835.c | 2 ++ + drivers/clk/bcm/clk-bcm2835.c | 2 ++ + drivers/pinctrl/bcm/pinctrl-bcm2835.c | 5 +++++ + 3 files changed, 9 insertions(+) + +--- a/arch/arm/mach-bcm/board_bcm2835.c ++++ b/arch/arm/mach-bcm/board_bcm2835.c +@@ -119,6 +119,8 @@ static const char * const bcm2835_compat + "brcm,bcm2836", + "brcm,bcm2837", + "brcm,bcm2711", ++ // Temporary, for backwards-compatibility with old DTBs ++ "brcm,bcm2838", + #endif + NULL + }; +--- a/drivers/clk/bcm/clk-bcm2835.c ++++ b/drivers/clk/bcm/clk-bcm2835.c +@@ -2396,6 +2396,8 @@ static const struct cprman_plat_data cpr + static const struct of_device_id bcm2835_clk_of_match[] = { + { .compatible = "brcm,bcm2835-cprman", .data = &cprman_bcm2835_plat_data }, + { .compatible = "brcm,bcm2711-cprman", .data = &cprman_bcm2711_plat_data }, ++ // Temporary, for backwards-compatibility with old DTBs ++ { .compatible = "brcm,bcm2838-cprman", .data = &cprman_bcm2711_plat_data }, + {} + }; + MODULE_DEVICE_TABLE(of, bcm2835_clk_of_match); +--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c ++++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c +@@ -1079,6 +1079,11 @@ static const struct of_device_id bcm2835 + .compatible = "brcm,bcm2711-gpio", + .data = &bcm2711_pinconf_ops, + }, ++ // Temporary, for backwards-compatibility with old DTBs ++ { ++ .compatible = "brcm,bcm2838-gpio", ++ .data = &bcm2711_pinconf_ops, ++ }, + {} + }; + |