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236 lines
7.0 KiB
Diff
236 lines
7.0 KiB
Diff
From 367af45e7a38258b1198af604070cc09198b1a61 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Fri, 12 Feb 2016 15:38:00 +0000
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Subject: [PATCH 144/423] BCM270X_DT: Add dtparams for the SD interface
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Add new base dtparams sd_overclock, sd_force_pio, sd_pio_limit
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and sd_debug.
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---
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arch/arm/boot/dts/bcm2708-rpi-b-plus.dts | 4 ++++
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arch/arm/boot/dts/bcm2708-rpi-b.dts | 4 ++++
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arch/arm/boot/dts/bcm2708-rpi-cm.dts | 1 -
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arch/arm/boot/dts/bcm2708-rpi-cm.dtsi | 13 +++++++++++++
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arch/arm/boot/dts/bcm2708_common.dtsi | 2 ++
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arch/arm/boot/dts/bcm2709-rpi-2-b.dts | 4 ++++
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arch/arm/boot/dts/overlays/README | 11 ++++++++++-
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arch/arm/boot/dts/overlays/mmc-overlay.dts | 1 -
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arch/arm/boot/dts/overlays/sdhost-overlay.dts | 27 +++++++++++++-------------
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arch/arm/boot/dts/overlays/sdtweak-overlay.dts | 14 ++++++-------
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10 files changed, 58 insertions(+), 23 deletions(-)
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--- a/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
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+++ b/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
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@@ -141,5 +141,9 @@
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audio = <&audio>,"status";
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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_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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};
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};
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--- a/arch/arm/boot/dts/bcm2708-rpi-b.dts
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+++ b/arch/arm/boot/dts/bcm2708-rpi-b.dts
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@@ -131,5 +131,9 @@
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audio = <&audio>,"status";
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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_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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};
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};
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--- a/arch/arm/boot/dts/bcm2708-rpi-cm.dts
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+++ b/arch/arm/boot/dts/bcm2708-rpi-cm.dts
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@@ -97,6 +97,5 @@
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i2c0_baudrate = <&i2c0>,"clock-frequency:0";
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i2c1_baudrate = <&i2c1>,"clock-frequency:0";
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i2c2_baudrate = <&i2c2>,"clock-frequency:0";
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- core_freq = <&clk_core>,"clock-frequency:0";
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};
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};
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--- a/arch/arm/boot/dts/bcm2708-rpi-cm.dtsi
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+++ b/arch/arm/boot/dts/bcm2708-rpi-cm.dtsi
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@@ -7,6 +7,13 @@
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};
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};
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+&gpio {
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+ sdhost_pins: sdhost_pins {
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+ brcm,pins = <48 49 50 51 52 53>;
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+ brcm,function = <4>; /* alt0 */
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+ };
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+};
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+
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&leds {
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act_led: act {
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label = "led0";
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@@ -29,6 +36,8 @@
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/ {
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__overrides__ {
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+ core_freq = <&clk_core>,"clock-frequency:0";
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+
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act_led_gpio = <&act_led>,"gpios:4";
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act_led_activelow = <&act_led>,"gpios:8";
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act_led_trigger = <&act_led>,"linux,default-trigger";
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@@ -36,5 +45,9 @@
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audio = <&audio>,"status";
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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_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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};
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};
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--- a/arch/arm/boot/dts/bcm2708_common.dtsi
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+++ b/arch/arm/boot/dts/bcm2708_common.dtsi
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@@ -135,6 +135,7 @@
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dmas = <&dma 13>,
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<&dma 13>;
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dma-names = "tx", "rx";
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+ brcm,overclock-50 = <0>;
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brcm,pio-limit = <1>;
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status = "disabled";
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};
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@@ -203,6 +204,7 @@
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dmas = <&dma 11>,
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<&dma 11>;
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dma-names = "tx", "rx";
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+ brcm,overclock-50 = <0>;
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status = "disabled";
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};
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--- a/arch/arm/boot/dts/bcm2709-rpi-2-b.dts
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+++ b/arch/arm/boot/dts/bcm2709-rpi-2-b.dts
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@@ -141,5 +141,9 @@
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audio = <&audio>,"status";
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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_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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};
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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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@@ -112,6 +112,16 @@ Params:
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random Set to "on" to enable the hardware random
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number generator (default "on")
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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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+
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+ sd_force_pio Disable DMA support for SD driver (default off)
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+
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+ sd_pio_limit Number of blocks above which to use DMA for
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+ SD card (default 1)
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+
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+ sd_debug Enable debug output from SD driver (default off)
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+
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uart0 Set to "off" to disable uart0 (default "on")
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watchdog Set to "on" to enable the hardware watchdog
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@@ -443,7 +453,6 @@ Info: Selects the bcm2835-mmc SD/MMC d
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Load: dtoverlay=mmc,<param>=<val>
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Params: overclock_50 Clock (in MHz) to use when the MMC framework
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requests 50MHz
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- force_pio Disable DMA support
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Name: mz61581
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--- a/arch/arm/boot/dts/overlays/mmc-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/mmc-overlay.dts
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@@ -34,6 +34,5 @@
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__overrides__ {
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overclock_50 = <&frag0>,"brcm,overclock-50:0";
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- force_pio = <&frag0>,"brcm,force-pio?";
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};
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};
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--- a/arch/arm/boot/dts/overlays/sdhost-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/sdhost-overlay.dts
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@@ -1,19 +1,14 @@
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/dts-v1/;
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/plugin/;
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+/* Provide backwards compatible aliases for the old sdhost dtparams. */
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+
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/{
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compatible = "brcm,bcm2708";
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fragment@0 {
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- target = <&mmc>;
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- __overlay__ {
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- status = "disabled";
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- };
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- };
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-
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- fragment@1 {
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target = <&sdhost>;
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- frag1: __overlay__ {
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+ frag0: __overlay__ {
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brcm,overclock-50 = <0>;
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brcm,pio-limit = <1>;
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brcm,debug-flags = <0>;
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@@ -21,11 +16,17 @@
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};
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};
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+ fragment@1 {
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+ target = <&mmc>;
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+ __overlay__ {
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+ status = "disabled";
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+ };
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+ };
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+
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__overrides__ {
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- overclock_50 = <&frag1>,"brcm,overclock-50:0";
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- force_pio = <&frag1>,"brcm,force-pio?";
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- pio_limit = <&frag1>,"brcm,pio-limit:0";
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- debug = <&frag1>,"brcm,debug?";
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- debug_flags = <&frag1>,"brcm,debug-flags:0";
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+ overclock_50 = <&frag0>,"brcm,overclock-50:0";
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+ force_pio = <&frag0>,"brcm,force-pio?";
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+ pio_limit = <&frag0>,"brcm,pio-limit:0";
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+ debug = <&frag0>,"brcm,debug?";
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};
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};
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--- a/arch/arm/boot/dts/overlays/sdtweak-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/sdtweak-overlay.dts
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@@ -1,23 +1,23 @@
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/dts-v1/;
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/plugin/;
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+/* Provide backwards compatible aliases for the old sdhost dtparams. */
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+
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/{
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compatible = "brcm,bcm2708";
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fragment@0 {
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target = <&sdhost>;
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- frag1: __overlay__ {
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+ frag0: __overlay__ {
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brcm,overclock-50 = <0>;
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brcm,pio-limit = <1>;
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- brcm,debug-flags = <0>;
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};
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};
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__overrides__ {
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- overclock_50 = <&frag1>,"brcm,overclock-50:0";
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- force_pio = <&frag1>,"brcm,force-pio?";
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- pio_limit = <&frag1>,"brcm,pio-limit:0";
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- debug = <&frag1>,"brcm,debug?";
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- debug_flags = <&frag1>,"brcm,debug-flags:0";
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+ overclock_50 = <&frag0>,"brcm,overclock-50:0";
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+ force_pio = <&frag0>,"brcm,force-pio?";
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+ pio_limit = <&frag0>,"brcm,pio-limit:0";
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+ debug = <&frag0>,"brcm,debug?";
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};
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};
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