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path: root/target/linux/brcm2708/patches-4.1/0191-BCM270X_DT-Document-SMI-overlay.patch
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From 4dd07876e2f9dec34ba65fed4dc64394802a05b8 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Wed, 16 Sep 2015 17:28:41 +0100
Subject: [PATCH 191/222] BCM270X_DT: Document SMI overlay

---
 arch/arm/boot/dts/overlays/Makefile |  6 +++---
 arch/arm/boot/dts/overlays/README   | 18 ++++++++++++++++++
 2 files changed, 21 insertions(+), 3 deletions(-)

--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -13,9 +13,6 @@ ifeq ($(CONFIG_ARCH_BCM2835),y)
 endif
 
 dtb-$(RPI_DT_OVERLAYS) += ads7846-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += smi-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += smi-dev-overlay.dtb
-dtb-$(RPI_DT_OVERLAYS) += smi-nand-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += bmp085_i2c-sensor-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += dht11-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += enc28j60-overlay.dtb
@@ -48,6 +45,9 @@ dtb-$(RPI_DT_OVERLAYS) += rpi-proto-over
 dtb-$(RPI_DT_OVERLAYS) += rpi-sense-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += sdhost-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += sdio-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += smi-dev-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += smi-nand-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += smi-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += spi-bcm2708-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += spi-bcm2835-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += spi-dma-overlay.dtb
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -530,6 +530,24 @@ Params: overclock_50             Clock (
         debug                    Enable debug output (default off)
 
 
+Name:   smi
+Info:   Enables the Secondary Memory Interface peripheral. Uses GPIOs 2-25!
+Load:   dtoverlay=smi
+Params: <None>
+
+
+Name:   smi-dev
+Info:   Enables the userspace interface for the SMI driver
+Load:   dtoverlay=smi-dev
+Params: <None>
+
+
+Name:   smi-nand
+Info:   Enables access to NAND flash via the SMI interface
+Load:   dtoverlay=smi-nand
+Params: <None>
+
+
 Name:   spi-bcm2708
 Info:   Selects the bcm2708-spi SPI driver
 Load:   dtoverlay=spi-bcm2708