xfnw/plan9fox
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

zunq: add sdram driver

Browse source
This commit is contained in:
cinap_lenrek 2018-06-14 21:54:42 +02:00
parent 4971db9e32
commit 0763dd4279
3 changed files with 8 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

3
sys/src/9/zynq/dat.h
View file

@ -60,7 +60,6 @@ enum
struct Confmem struct Confmem
{ {
uintptr base; uintptr base;
uintptr limit;
usize npage; usize npage;
uintptr kbase; uintptr kbase;
uintptr klimit; uintptr klimit;
@ -70,7 +69,7 @@ struct Conf
{ {
ulong nmach; /* processors */ ulong nmach; /* processors */
ulong nproc; /* processes */ ulong nproc; /* processes */
Confmem mem[1]; /* physical memory */ Confmem mem[2]; /* physical memory */
ulong npage; /* total physical pages of memory */ ulong npage; /* total physical pages of memory */
usize upages; /* user page pool */ usize upages; /* user page pool */
ulong copymode; /* 0 is copy on write, 1 is copy on reference */ ulong copymode; /* 0 is copy on write, 1 is copy on reference */

8
sys/src/9/zynq/main.c
View file

@ -177,10 +177,14 @@ confinit(void)
conf.ialloc = 16*1024*1024; conf.ialloc = 16*1024*1024;
conf.nimage = 200; conf.nimage = 200;
conf.mem[0].base = PGROUND((ulong)end - KZERO); conf.mem[0].base = PGROUND((ulong)end - KZERO);
conf.mem[0].limit = 1024*1024*1024; conf.mem[0].npage = (1024*1024*1024 - conf.mem[0].base) >> PGSHIFT;
ramdiskinit();
conf.npage = 0; conf.npage = 0;
for(i = 0; i < nelem(conf.mem); i++) for(i = 0; i < nelem(conf.mem); i++)
conf.npage += conf.mem[i].npage = (conf.mem[i].limit - conf.mem[i].base) >> PGSHIFT; conf.npage += conf.mem[i].npage;
kmem = 200*1024*1024; kmem = 200*1024*1024;
conf.upages = conf.npage - kmem/BY2PG; conf.upages = conf.npage - kmem/BY2PG;
kmem -= conf.upages*sizeof(Page) kmem -= conf.upages*sizeof(Page)

1
sys/src/9/zynq/zynq
View file

@ -34,6 +34,7 @@ link
misc misc
uartzynq uartzynq
sdmmc emmc sdmmc emmc
sdram
ip ip
tcp tcp