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author | Rafał Miłecki <rafal@milecki.pl> | 2017-03-22 21:09:00 +0100 |
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committer | Rafał Miłecki <rafal@milecki.pl> | 2017-03-24 08:06:35 +0100 |
commit | fce21ae4ccfcee0c28fb18f5507e145fb0b02dec (patch) | |
tree | 6c29b7c1f65945991d0cae13af012e6c14adc713 /target/linux/brcm2708/patches-4.9/950-0125-BCM270X_DT-Add-spi0-cs-overlay.patch | |
parent | 46e390322a58bdc632ee43fdf9d14115dac26e7a (diff) | |
download | upstream-fce21ae4ccfcee0c28fb18f5507e145fb0b02dec.tar.gz upstream-fce21ae4ccfcee0c28fb18f5507e145fb0b02dec.tar.bz2 upstream-fce21ae4ccfcee0c28fb18f5507e145fb0b02dec.zip |
brcm2708: rename all patches from raspberrypi git tree to use 950 prefix
Right now all brcm2708 patches are extracted from the non-mainline
raspberrypi/linux git tree. Many of them are hacks and/or are unneeded
in LEDE. Raspberry Pi is getting better and better mainline support so
it would be nice to finally start maintaining patches in a cleaner way:
1) Backport patches accepted in upstream tree
2) Start using upstream drivers
3) Pick only these patches that are needed for more complete support
Handling above tasks requires grouping patches - ideally using the same
prefixes as generic ones. It means we should rename existing patches to
use some high prefix. This will allow e.g. use 0xx for backported code.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Stijn Tintel <stijn@linux-ipv6.be>
Diffstat (limited to 'target/linux/brcm2708/patches-4.9/950-0125-BCM270X_DT-Add-spi0-cs-overlay.patch')
-rw-r--r-- | target/linux/brcm2708/patches-4.9/950-0125-BCM270X_DT-Add-spi0-cs-overlay.patch | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.9/950-0125-BCM270X_DT-Add-spi0-cs-overlay.patch b/target/linux/brcm2708/patches-4.9/950-0125-BCM270X_DT-Add-spi0-cs-overlay.patch new file mode 100644 index 0000000000..2fd8366f4e --- /dev/null +++ b/target/linux/brcm2708/patches-4.9/950-0125-BCM270X_DT-Add-spi0-cs-overlay.patch @@ -0,0 +1,83 @@ +From 48eea36959fb8d854b4cf1ee4284646be5a279e0 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Mon, 16 Jan 2017 14:53:12 +0000 +Subject: [PATCH] BCM270X_DT: Add spi0-cs overlay + +The spi0-cs overlay allows the software chip selectts to be modified +using the cs0_pin and cs1_pin parameters. + +Signed-off-by: Phil Elwell <phil@raspberrypi.org> +--- + arch/arm/boot/dts/overlays/Makefile | 1 + + arch/arm/boot/dts/overlays/README | 9 +++++++- + arch/arm/boot/dts/overlays/spi0-cs-overlay.dts | 29 ++++++++++++++++++++++++++ + 3 files changed, 38 insertions(+), 1 deletion(-) + create mode 100644 arch/arm/boot/dts/overlays/spi0-cs-overlay.dts + +--- a/arch/arm/boot/dts/overlays/Makefile ++++ b/arch/arm/boot/dts/overlays/Makefile +@@ -83,6 +83,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \ + smi-nand.dtbo \ + spi-gpio35-39.dtbo \ + spi-rtc.dtbo \ ++ spi0-cs.dtbo \ + spi0-hw-cs.dtbo \ + spi1-1cs.dtbo \ + spi1-2cs.dtbo \ +--- a/arch/arm/boot/dts/overlays/README ++++ b/arch/arm/boot/dts/overlays/README +@@ -1138,7 +1138,7 @@ Params: <None> + + + Name: spi-gpio35-39 +-Info: move SPI function block to GPIO 35 to 39 ++Info: Move SPI function block to GPIO 35 to 39 + Load: dtoverlay=spi-gpio35-39 + Params: <None> + +@@ -1149,6 +1149,13 @@ Load: dtoverlay=spi-rtc,<param>=<val> + Params: pcf2123 Select the PCF2123 device + + ++Name: spi0-cs ++Info: Allows the (software) CS pins for SPI0 to be changed ++Load: dtoverlay=spi0-cs,<param>=<val> ++Params: cs0_pin GPIO pin for CS0 (default 8) ++ cs1_pin GPIO pin for CS1 (default 7) ++ ++ + Name: spi0-hw-cs + Info: Re-enables hardware CS/CE (chip selects) for SPI0 + Load: dtoverlay=spi0-hw-cs +--- /dev/null ++++ b/arch/arm/boot/dts/overlays/spi0-cs-overlay.dts +@@ -0,0 +1,29 @@ ++/dts-v1/; ++/plugin/; ++ ++ ++/ { ++ compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; ++ ++ fragment@0 { ++ target = <&spi0_cs_pins>; ++ frag0: __overlay__ { ++ brcm,pins = <8 7>; ++ }; ++ }; ++ ++ fragment@1 { ++ target = <&spi0>; ++ frag1: __overlay__ { ++ cs-gpios = <&gpio 8 1>, <&gpio 7 1>; ++ status = "okay"; ++ }; ++ }; ++ ++ __overrides__ { ++ cs0_pin = <&frag0>,"brcm,pins:0", ++ <&frag1>,"cs-gpios:4"; ++ cs1_pin = <&frag0>,"brcm,pins:4", ++ <&frag1>,"cs-gpios:16"; ++ }; ++}; |