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microwatt/litedram/gen-src/sdram_init/libc/src
Benjamin Herrenschmidt 982cf166dd litedram: Add basic support for LiteX LiteDRAM
This comes in two parts:

 - A generator script which uses LiteX to generate litedram cores
along with their init files for various boards (currently Arty and
Nexys-video). This comes with configs for arty and nexys_video.

 - A fusesoc "generator" which uses pre-generated litedram cores

The generation process is manual on purpose. This include pre-generated
cores for the two above boards.

This is done so that one doesn't have to install LiteX to build
microwatt. In addition, the generator script or wrapper vhdl tend to
break when LiteX changes significantly which happens.

This is still rather standalone and hasn't been plumbed into the SoC
or the FPGA toplevel files yet.

At this point LiteDRAM self-initializes using a built-in VexRiscv
"Minimum" core obtained from LiteX and included in this commit. There
is some plumbing to generate and cores that are initialized by Microwatt
directly but this isn't working yet and so isn't enabled yet.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
4 years ago
..
isdigit.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
isprint.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
isspace.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
isxdigit.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
memchr.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
memcmp.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
memcpy.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
memmove.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
memset.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
strcasecmp.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
strcat.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
strchr.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
strcmp.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
strcpy.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
strlen.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
strncasecmp.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
strncmp.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
strncpy.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
strrchr.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
strstr.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
strtok.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
strtol.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
strtoul.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
tolower.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
toupper.c litedram: Add basic support for LiteX LiteDRAM 4 years ago
vsnprintf.c litedram: Add basic support for LiteX LiteDRAM 4 years ago