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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
f74c31d5 JN |
2 | #include <linux/init.h> |
3 | #include <linux/kernel.h> | |
4 | #include <linux/string.h> | |
5 | #include <memmap.h> | |
6 | #include <hwregs/reg_map.h> | |
7 | #include <hwregs/reg_rdwr.h> | |
8 | #include <hwregs/l2cache_defs.h> | |
9 | #include <asm/io.h> | |
10 | ||
11 | #define L2CACHE_SIZE 64 | |
12 | ||
13 | int __init l2cache_init(void) | |
14 | { | |
15 | reg_l2cache_rw_ctrl ctrl = {0}; | |
16 | reg_l2cache_rw_cfg cfg = {.en = regk_l2cache_yes}; | |
17 | ||
18 | ctrl.csize = L2CACHE_SIZE; | |
19 | ctrl.cbase = L2CACHE_SIZE / 4 + (L2CACHE_SIZE % 4 ? 1 : 0); | |
20 | REG_WR(l2cache, regi_l2cache, rw_ctrl, ctrl); | |
21 | ||
22 | /* Flush the tag memory */ | |
23 | memset((void *)(MEM_INTMEM_START | MEM_NON_CACHEABLE), 0, 2*1024); | |
24 | ||
25 | /* Enable the cache */ | |
26 | REG_WR(l2cache, regi_l2cache, rw_cfg, cfg); | |
27 | ||
28 | return 0; | |
29 | } | |
30 |