From: Marek Vasut <marex@denx.de>
Date: Wed, 22 Oct 2014 19:56:03 +0000 (+0200)
Subject: spi: altera: Add short note about EPCS/EPCQx1
X-Git-Tag: v2015.01-rc1~68^2~3
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=df155672ff262dd779ef12c04d9fc1911b778990;p=oweals%2Fu-boot.git

spi: altera: Add short note about EPCS/EPCQx1

Add short documentation-alike note on how to use the Altera SPI
driver with the EPCS/EPCQx1 FPGA IP block on SoCFPGA Cyclone V
into doc/SPI/README.altera_spi

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@altera.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Pavel Machek <pavel@denx.de>
Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
Acked-by: Pavel Machek <pavel@denx.de>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
---

diff --git a/doc/SPI/README.altera_spi b/doc/SPI/README.altera_spi
new file mode 100644
index 0000000000..b07449f80d
--- /dev/null
+++ b/doc/SPI/README.altera_spi
@@ -0,0 +1,6 @@
+SoCFPGA EPCS/EPCQx1 mini howto:
+- Instantiate EPCS/EPCQx1 Serial flash controller in QSys and rebuild
+- The controller base address is the "Base" in QSys + 0x400
+- Set MSEL[4:0]=10010 (AS Standard)
+- Load the bitstream into FPGA, enable bridges
+- Only then will the driver work