1 #include <linux/init.h>
2 #include <linux/kernel.h>
3 #include <linux/string.h>
4 #include <memmap.h>
5 #include <hwregs/reg_map.h>
6 #include <hwregs/reg_rdwr.h>
7 #include <hwregs/l2cache_defs.h>
8 #include <asm/io.h>
9 
10 #define L2CACHE_SIZE 64
11 
l2cache_init(void)12 int __init l2cache_init(void)
13 {
14 	reg_l2cache_rw_ctrl ctrl = {0};
15 	reg_l2cache_rw_cfg cfg = {.en = regk_l2cache_yes};
16 
17 	ctrl.csize = L2CACHE_SIZE;
18 	ctrl.cbase = L2CACHE_SIZE / 4 + (L2CACHE_SIZE % 4 ? 1 : 0);
19 	REG_WR(l2cache, regi_l2cache, rw_ctrl, ctrl);
20 
21 	/* Flush the tag memory */
22 	memset((void *)(MEM_INTMEM_START | MEM_NON_CACHEABLE), 0, 2*1024);
23 
24 	/* Enable the cache */
25 	REG_WR(l2cache, regi_l2cache, rw_cfg, cfg);
26 
27 	return 0;
28 }
29 
30