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7d7aa2fd92
This change makes the names of Broadcom targets consistent by using the common notation based on SoC/CPU ID (which is used internally anyway), bcmXXXX instead of brcmXXXX. This is even used for target TITLE in make menuconfig already, only the short target name used brcm so far. Despite, since subtargets range from bcm2708 to bcm2711, it seems appropriate to use bcm27xx instead of bcm2708 (again, as already done for BOARDNAME). This also renames the packages brcm2708-userland and brcm2708-gpu-fw. Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de> Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
60 lines
2.3 KiB
Diff
60 lines
2.3 KiB
Diff
From d7044f06dea839c61a01e6016a4b9dee15543f8d Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Thu, 30 Jan 2020 09:47:00 +0000
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Subject: [PATCH] ARM: dts: Add sd_poll_once dtparam to bcm283x/2711
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The old sdtweak overlay allowed the SD interface to be effectively
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disabled unless there was a card present at boot time, but that
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overlay doesn't work on bcm2711 and has largely been replaced by
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a set of sd_* dtparams (which have the advantage of being board-
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specific.
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Add an sd_poll_once dtparam to allow the same functionality on
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all Raspberry Pi boards.
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See: https://github.com/raspberrypi/linux/issues/3286
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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arch/arm/boot/dts/bcm2708-rpi.dtsi | 1 +
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arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 2 ++
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arch/arm/boot/dts/overlays/README | 7 +++++++
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3 files changed, 10 insertions(+)
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--- a/arch/arm/boot/dts/bcm2708-rpi.dtsi
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+++ b/arch/arm/boot/dts/bcm2708-rpi.dtsi
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@@ -92,6 +92,7 @@
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watchdog = <&watchdog>,"status";
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random = <&random>,"status";
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sd_overclock = <&sdhost>,"brcm,overclock-50:0";
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+ sd_poll_once = <&sdhost>,"non-removable?";
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sd_force_pio = <&sdhost>,"brcm,force-pio?";
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sd_pio_limit = <&sdhost>,"brcm,pio-limit:0";
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sd_debug = <&sdhost>,"brcm,debug";
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--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
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+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
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@@ -349,5 +349,7 @@
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eth_led0 = <&phy1>,"led-modes:0";
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eth_led1 = <&phy1>,"led-modes:4";
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+
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+ sd_poll_once = <&emmc2>, "non-removable?";
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};
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};
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -165,6 +165,13 @@ Params:
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sd_overclock Clock (in MHz) to use when the MMC framework
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requests 50MHz
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+ sd_poll_once Looks for a card once after booting. Useful
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+ for network booting scenarios to avoid the
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+ overhead of continuous polling. N.B. Using
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+ this option restricts the system to using a
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+ single card per boot (or none at all).
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+ (default off)
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+
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sd_force_pio Disable DMA support for SD driver (default off)
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sd_pio_limit Number of blocks above which to use DMA for
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