begin integrate from chatlogs

diff --git a/HDL_workflow/microwatt.mdwn b/HDL_workflow/microwatt.mdwn
index d63d768bbae713ecd51b7686ba4413ba2c1ad2b6..b437e46088b15dd1c45cc26540b2426d9be3b82a 100644 (file)
--- a/HDL_workflow/microwatt.mdwn
+++ b/HDL_workflow/microwatt.mdwn
@@ -1,6 +1,6 @@
 # Build instructions for Microwatt
 
-TODO integrate from <https://libre-soc.org/irclog/%23libre-soc.2022-01-26.log.html>
+WIP integrate from <https://libre-soc.org/irclog/%23libre-soc.2022-01-26.log.html>
 
 * install verilator: <https://git.libre-soc.org/?p=dev-env-setup.git;a=blob;f=verilator-install;hb=HEAD>
 * install yosys <https://git.libre-soc.org/?p=dev-env-setup.git;a=blob;f=hdl-tools-yosys;hb=HEAD>
@@ -33,9 +33,17 @@ you can omit CROSS_COMPILE and ARCH in this case
        apt install flex bison lz4
        git clone -b microwatt-5.7 https://git.kernel.org/pub/scm/linux/kernel/git/joel/microwatt.git
        cd microwatt
+       wget https://ftp.libre-soc.org/microwatt-linux-5.7.patch
+       patch -p1 < microwatt-linux-5.7.patch
        wget http://ftp.libre-soc.org/rootfs.cpio
        CROSS_COMPILE="ccache powerpc64le-linux-gnu-" ARCH=powerpc make -j8 O=microwatt microwatt_defconfig
        CROSS_COMPILE="ccache powerpc64le-linux-gnu-" ARCH=powerpc make -j8 O=microwatt
        
 This will produce a file 
        microwatt/arch/powerpc/boot/dtbImage.microwatt
+
+## Building sdram_init.bin
+This needs gcc-powerpc64le-linux-gnu if cross compilation is used.
+       cd microwatt
+       cd litedram/gen-src/sdram_init/
+       make