X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=arch%2Fmicroblaze%2Fcpu%2Fcache.c;h=ddfa02000ec3c3d63088521a5bc450dcc6ef18f6;hb=dc5be508b065ff305cef451ac1aed7465603db02;hp=3b7c4d4f7f9a61b79a0dc1cde5b778e5aab12b3d;hpb=6260fb0458d94c83aa5b180745b1946c0c94d364;p=u-boot diff --git a/arch/microblaze/cpu/cache.c b/arch/microblaze/cpu/cache.c index 3b7c4d4f7f..ddfa02000e 100644 --- a/arch/microblaze/cpu/cache.c +++ b/arch/microblaze/cpu/cache.c @@ -3,23 +3,7 @@ * * Michal SIMEK * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * SPDX-License-Identifier: GPL-2.0+ */ #include @@ -50,6 +34,8 @@ void icache_enable (void) { } void icache_disable(void) { + /* we are not generate ICACHE size -> flush whole cache */ + flush_cache(0, 32768); MSRCLR(0x20); } @@ -58,5 +44,26 @@ void dcache_enable (void) { } void dcache_disable(void) { +#ifdef XILINX_USE_DCACHE + flush_cache(0, XILINX_DCACHE_BYTE_SIZE); +#endif MSRCLR(0x80); } + +void flush_cache (ulong addr, ulong size) +{ + int i; + for (i = 0; i < size; i += 4) + asm volatile ( +#ifdef CONFIG_ICACHE + "wic %0, r0;" +#endif + "nop;" +#ifdef CONFIG_DCACHE + "wdc.flush %0, r0;" +#endif + "nop;" + : + : "r" (addr + i) + : "memory"); +}