package/boot/uboot-zynq/patches/020-v2018.09-arm-zynq-dts-add-spi-flash-node-to-zedboard.patch

   1 From a492fdffa3c86f6b8420b6433a2ce07271597324 Mon Sep 17 00:00:00 2001
   2 From: Luis Araneda <luaraneda@gmail.com>
   3 Date: Fri, 27 Jul 2018 04:43:42 -0400
   4 Subject: [PATCH] arm: zynq: dts: add spi flash node to zedboard
   5
   6 Add a flash node to fix the detection of the memory IC.
   7 With the changes introduced with commit 8fee8845e754
   8 ("enf_sf: reuse setup_flash_device instead of open coding it")
   9 the SPI speed is now read from device-tree or a default value
  10 is applied. This replaced the old behavior of setting the
  11 SPI speed to CONFIG_ENV_SPI_MAX_HZ.
  12
  13 As this board didn't have a flash node, the default value
  14 was applied to the SPI speed, producing an error when probing
  15 the flash memory (speed too slow).
  16
  17 Signed-off-by: Luis Araneda <luaraneda@gmail.com>
  18 Signed-off-by: Michal Simek <michal.simek@xilinx.com>
  19 ---
  20  arch/arm/dts/zynq-zed.dts | 7 +++++++
  21  1 file changed, 7 insertions(+)
  22
  23 --- a/arch/arm/dts/zynq-zed.dts
  24 +++ b/arch/arm/dts/zynq-zed.dts
  25 @@ -51,6 +51,13 @@
  26  &qspi {
  27         u-boot,dm-pre-reloc;
  28         status = "okay";
  29 +       num-cs = <1>;
  30 +       flash@0 {
  31 +               compatible = "spansion,s25fl256s", "spi-flash";
  32 +               reg = <0>;
  33 +               spi-max-frequency = <30000000>;
  34 +               m25p,fast-read;
  35 +       };
  36  };
  37
  38  &sdhci0 {