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-rw-r--r--target/linux/brcm2708/patches-4.4/0144-BCM270X_DT-Add-dtparams-for-the-SD-interface.patch235
1 files changed, 235 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0144-BCM270X_DT-Add-dtparams-for-the-SD-interface.patch b/target/linux/brcm2708/patches-4.4/0144-BCM270X_DT-Add-dtparams-for-the-SD-interface.patch
new file mode 100644
index 0000000000..157f5804b3
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0144-BCM270X_DT-Add-dtparams-for-the-SD-interface.patch
@@ -0,0 +1,235 @@
+From 5920a56447c13b86d073a388be113c28c2a8681d Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 12 Feb 2016 15:38:00 +0000
+Subject: [PATCH 144/304] BCM270X_DT: Add dtparams for the SD interface
+
+Add new base dtparams sd_overclock, sd_force_pio, sd_pio_limit
+and sd_debug.
+---
+ arch/arm/boot/dts/bcm2708-rpi-b-plus.dts | 4 ++++
+ arch/arm/boot/dts/bcm2708-rpi-b.dts | 4 ++++
+ arch/arm/boot/dts/bcm2708-rpi-cm.dts | 1 -
+ arch/arm/boot/dts/bcm2708-rpi-cm.dtsi | 13 +++++++++++++
+ arch/arm/boot/dts/bcm2708_common.dtsi | 2 ++
+ arch/arm/boot/dts/bcm2709-rpi-2-b.dts | 4 ++++
+ arch/arm/boot/dts/overlays/README | 11 ++++++++++-
+ arch/arm/boot/dts/overlays/mmc-overlay.dts | 1 -
+ arch/arm/boot/dts/overlays/sdhost-overlay.dts | 27 +++++++++++++-------------
+ arch/arm/boot/dts/overlays/sdtweak-overlay.dts | 14 ++++++-------
+ 10 files changed, 58 insertions(+), 23 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
+@@ -141,5 +141,9 @@
+ audio = <&audio>,"status";
+ watchdog = <&watchdog>,"status";
+ random = <&random>,"status";
++ sd_overclock = <&sdhost>,"brcm,overclock-50:0";
++ sd_force_pio = <&sdhost>,"brcm,force-pio?";
++ sd_pio_limit = <&sdhost>,"brcm,pio-limit:0";
++ sd_debug = <&sdhost>,"brcm,debug";
+ };
+ };
+--- a/arch/arm/boot/dts/bcm2708-rpi-b.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-b.dts
+@@ -131,5 +131,9 @@
+ audio = <&audio>,"status";
+ watchdog = <&watchdog>,"status";
+ random = <&random>,"status";
++ sd_overclock = <&sdhost>,"brcm,overclock-50:0";
++ sd_force_pio = <&sdhost>,"brcm,force-pio?";
++ sd_pio_limit = <&sdhost>,"brcm,pio-limit:0";
++ sd_debug = <&sdhost>,"brcm,debug";
+ };
+ };
+--- a/arch/arm/boot/dts/bcm2708-rpi-cm.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-cm.dts
+@@ -97,6 +97,5 @@
+ i2c0_baudrate = <&i2c0>,"clock-frequency:0";
+ i2c1_baudrate = <&i2c1>,"clock-frequency:0";
+ i2c2_baudrate = <&i2c2>,"clock-frequency:0";
+- core_freq = <&clk_core>,"clock-frequency:0";
+ };
+ };
+--- a/arch/arm/boot/dts/bcm2708-rpi-cm.dtsi
++++ b/arch/arm/boot/dts/bcm2708-rpi-cm.dtsi
+@@ -7,6 +7,13 @@
+ };
+ };
+
++&gpio {
++ sdhost_pins: sdhost_pins {
++ brcm,pins = <48 49 50 51 52 53>;
++ brcm,function = <4>; /* alt0 */
++ };
++};
++
+ &leds {
+ act_led: act {
+ label = "led0";
+@@ -29,6 +36,8 @@
+
+ / {
+ __overrides__ {
++ core_freq = <&clk_core>,"clock-frequency:0";
++
+ act_led_gpio = <&act_led>,"gpios:4";
+ act_led_activelow = <&act_led>,"gpios:8";
+ act_led_trigger = <&act_led>,"linux,default-trigger";
+@@ -36,5 +45,9 @@
+ audio = <&audio>,"status";
+ watchdog = <&watchdog>,"status";
+ random = <&random>,"status";
++ sd_overclock = <&sdhost>,"brcm,overclock-50:0";
++ sd_force_pio = <&sdhost>,"brcm,force-pio?";
++ sd_pio_limit = <&sdhost>,"brcm,pio-limit:0";
++ sd_debug = <&sdhost>,"brcm,debug";
+ };
+ };
+--- a/arch/arm/boot/dts/bcm2708_common.dtsi
++++ b/arch/arm/boot/dts/bcm2708_common.dtsi
+@@ -135,6 +135,7 @@
+ dmas = <&dma 13>,
+ <&dma 13>;
+ dma-names = "tx", "rx";
++ brcm,overclock-50 = <0>;
+ brcm,pio-limit = <1>;
+ status = "disabled";
+ };
+@@ -203,6 +204,7 @@
+ dmas = <&dma 11>,
+ <&dma 11>;
+ dma-names = "tx", "rx";
++ brcm,overclock-50 = <0>;
+ status = "disabled";
+ };
+
+--- a/arch/arm/boot/dts/bcm2709-rpi-2-b.dts
++++ b/arch/arm/boot/dts/bcm2709-rpi-2-b.dts
+@@ -141,5 +141,9 @@
+ audio = <&audio>,"status";
+ watchdog = <&watchdog>,"status";
+ random = <&random>,"status";
++ sd_overclock = <&sdhost>,"brcm,overclock-50:0";
++ sd_force_pio = <&sdhost>,"brcm,force-pio?";
++ sd_pio_limit = <&sdhost>,"brcm,pio-limit:0";
++ sd_debug = <&sdhost>,"brcm,debug";
+ };
+ };
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -112,6 +112,16 @@ Params:
+ random Set to "on" to enable the hardware random
+ number generator (default "on")
+
++ sd_overclock Clock (in MHz) to use when the MMC framework
++ requests 50MHz
++
++ sd_force_pio Disable DMA support for SD driver (default off)
++
++ sd_pio_limit Number of blocks above which to use DMA for
++ SD card (default 1)
++
++ sd_debug Enable debug output from SD driver (default off)
++
+ uart0 Set to "off" to disable uart0 (default "on")
+
+ watchdog Set to "on" to enable the hardware watchdog
+@@ -443,7 +453,6 @@ Info: Selects the bcm2835-mmc SD/MMC d
+ Load: dtoverlay=mmc,<param>=<val>
+ Params: overclock_50 Clock (in MHz) to use when the MMC framework
+ requests 50MHz
+- force_pio Disable DMA support
+
+
+ Name: mz61581
+--- a/arch/arm/boot/dts/overlays/mmc-overlay.dts
++++ b/arch/arm/boot/dts/overlays/mmc-overlay.dts
+@@ -34,6 +34,5 @@
+
+ __overrides__ {
+ overclock_50 = <&frag0>,"brcm,overclock-50:0";
+- force_pio = <&frag0>,"brcm,force-pio?";
+ };
+ };
+--- a/arch/arm/boot/dts/overlays/sdhost-overlay.dts
++++ b/arch/arm/boot/dts/overlays/sdhost-overlay.dts
+@@ -1,19 +1,14 @@
+ /dts-v1/;
+ /plugin/;
+
++/* Provide backwards compatible aliases for the old sdhost dtparams. */
++
+ /{
+ compatible = "brcm,bcm2708";
+
+ fragment@0 {
+- target = <&mmc>;
+- __overlay__ {
+- status = "disabled";
+- };
+- };
+-
+- fragment@1 {
+ target = <&sdhost>;
+- frag1: __overlay__ {
++ frag0: __overlay__ {
+ brcm,overclock-50 = <0>;
+ brcm,pio-limit = <1>;
+ brcm,debug-flags = <0>;
+@@ -21,11 +16,17 @@
+ };
+ };
+
++ fragment@1 {
++ target = <&mmc>;
++ __overlay__ {
++ status = "disabled";
++ };
++ };
++
+ __overrides__ {
+- overclock_50 = <&frag1>,"brcm,overclock-50:0";
+- force_pio = <&frag1>,"brcm,force-pio?";
+- pio_limit = <&frag1>,"brcm,pio-limit:0";
+- debug = <&frag1>,"brcm,debug?";
+- debug_flags = <&frag1>,"brcm,debug-flags:0";
++ overclock_50 = <&frag0>,"brcm,overclock-50:0";
++ force_pio = <&frag0>,"brcm,force-pio?";
++ pio_limit = <&frag0>,"brcm,pio-limit:0";
++ debug = <&frag0>,"brcm,debug?";
+ };
+ };
+--- a/arch/arm/boot/dts/overlays/sdtweak-overlay.dts
++++ b/arch/arm/boot/dts/overlays/sdtweak-overlay.dts
+@@ -1,23 +1,23 @@
+ /dts-v1/;
+ /plugin/;
+
++/* Provide backwards compatible aliases for the old sdhost dtparams. */
++
+ /{
+ compatible = "brcm,bcm2708";
+
+ fragment@0 {
+ target = <&sdhost>;
+- frag1: __overlay__ {
++ frag0: __overlay__ {
+ brcm,overclock-50 = <0>;
+ brcm,pio-limit = <1>;
+- brcm,debug-flags = <0>;
+ };
+ };
+
+ __overrides__ {
+- overclock_50 = <&frag1>,"brcm,overclock-50:0";
+- force_pio = <&frag1>,"brcm,force-pio?";
+- pio_limit = <&frag1>,"brcm,pio-limit:0";
+- debug = <&frag1>,"brcm,debug?";
+- debug_flags = <&frag1>,"brcm,debug-flags:0";
++ overclock_50 = <&frag0>,"brcm,overclock-50:0";
++ force_pio = <&frag0>,"brcm,force-pio?";
++ pio_limit = <&frag0>,"brcm,pio-limit:0";
++ debug = <&frag0>,"brcm,debug?";
+ };
+ };
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