+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2012 Andes Technology Corporation
* Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
* Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
- *
- * 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
- *
*/
#include <common.h>
+#include <cpu_func.h>
+#if !(CONFIG_IS_ENABLED(SYS_ICACHE_OFF) && CONFIG_IS_ENABLED(SYS_DCACHE_OFF))
+#include <asm/cache.h>
+static inline unsigned long CACHE_SET(unsigned char cache)
+{
+ if (cache == ICACHE)
+ return 64 << ((GET_ICM_CFG() & ICM_CFG_MSK_ISET) \
+ >> ICM_CFG_OFF_ISET);
+ else
+ return 64 << ((GET_DCM_CFG() & DCM_CFG_MSK_DSET) \
+ >> DCM_CFG_OFF_DSET);
+}
+
+static inline unsigned long CACHE_WAY(unsigned char cache)
+{
+ if (cache == ICACHE)
+ return 1 + ((GET_ICM_CFG() & ICM_CFG_MSK_IWAY) \
+ >> ICM_CFG_OFF_IWAY);
+ else
+ return 1 + ((GET_DCM_CFG() & DCM_CFG_MSK_DWAY) \
+ >> DCM_CFG_OFF_DWAY);
+}
static inline unsigned long CACHE_LINE_SIZE(enum cache_t cache)
{
if (cache == ICACHE)
return 8 << (((GET_ICM_CFG() & ICM_CFG_MSK_ISZ) \
- >> ICM_CFG_OFF_ISZ) - 1);
+ >> ICM_CFG_OFF_ISZ) - 1);
else
return 8 << (((GET_DCM_CFG() & DCM_CFG_MSK_DSZ) \
- >> DCM_CFG_OFF_DSZ) - 1);
+ >> DCM_CFG_OFF_DSZ) - 1);
}
+#endif
-void flush_dcache_range(unsigned long start, unsigned long end)
+#if !CONFIG_IS_ENABLED(SYS_ICACHE_OFF)
+void invalidate_icache_all(void)
{
- unsigned long line_size;
+ unsigned long end, line_size;
+ line_size = CACHE_LINE_SIZE(ICACHE);
+ end = line_size * CACHE_WAY(ICACHE) * CACHE_SET(ICACHE);
+ do {
+ end -= line_size;
+ __asm__ volatile ("\n\tcctl %0, L1I_IX_INVAL" : : "r" (end));
- line_size = CACHE_LINE_SIZE(DCACHE);
+ end -= line_size;
+ __asm__ volatile ("\n\tcctl %0, L1I_IX_INVAL" : : "r" (end));
- while (end > start) {
- asm volatile (
- "\n\tcctl %0, L1D_VA_WB"
- "\n\tcctl %0, L1D_VA_INVAL"
- :
- : "r" (start)
- );
- start += line_size;
- }
+ end -= line_size;
+ __asm__ volatile ("\n\tcctl %0, L1I_IX_INVAL" : : "r" (end));
+ end -= line_size;
+ __asm__ volatile ("\n\tcctl %0, L1I_IX_INVAL" : : "r" (end));
+ } while (end > 0);
}
void invalidate_icache_range(unsigned long start, unsigned long end)
}
}
-void invalidate_dcache_range(unsigned long start, unsigned long end)
-{
- unsigned long line_size;
-
- line_size = CACHE_LINE_SIZE(DCACHE);
- while (end > start) {
- asm volatile (
- "\n\tcctl %0, L1D_VA_INVAL"
- :
- : "r"(start)
- );
- start += line_size;
- }
-}
-
-void flush_cache(unsigned long addr, unsigned long size)
-{
- flush_dcache_range(addr, addr + size);
- invalidate_icache_range(addr, addr + size);
-}
-
void icache_enable(void)
{
asm volatile (
return ret;
}
+#else
+void invalidate_icache_all(void)
+{
+}
+
+void invalidate_icache_range(unsigned long start, unsigned long end)
+{
+}
+
+void icache_enable(void)
+{
+}
+
+void icache_disable(void)
+{
+}
+
+int icache_status(void)
+{
+ return 0;
+}
+
+#endif
+
+#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
+void dcache_wbinval_all(void)
+{
+ unsigned long end, line_size;
+ line_size = CACHE_LINE_SIZE(DCACHE);
+ end = line_size * CACHE_WAY(DCACHE) * CACHE_SET(DCACHE);
+ do {
+ end -= line_size;
+ __asm__ volatile ("\n\tcctl %0, L1D_IX_WB" : : "r" (end));
+ __asm__ volatile ("\n\tcctl %0, L1D_IX_INVAL" : : "r" (end));
+ end -= line_size;
+ __asm__ volatile ("\n\tcctl %0, L1D_IX_WB" : : "r" (end));
+ __asm__ volatile ("\n\tcctl %0, L1D_IX_INVAL" : : "r" (end));
+ end -= line_size;
+ __asm__ volatile ("\n\tcctl %0, L1D_IX_WB" : : "r" (end));
+ __asm__ volatile ("\n\tcctl %0, L1D_IX_INVAL" : : "r" (end));
+ end -= line_size;
+ __asm__ volatile ("\n\tcctl %0, L1D_IX_WB" : : "r" (end));
+ __asm__ volatile ("\n\tcctl %0, L1D_IX_INVAL" : : "r" (end));
+
+ } while (end > 0);
+}
+
+void flush_dcache_range(unsigned long start, unsigned long end)
+{
+ unsigned long line_size;
+
+ line_size = CACHE_LINE_SIZE(DCACHE);
+
+ while (end > start) {
+ asm volatile (
+ "\n\tcctl %0, L1D_VA_WB"
+ "\n\tcctl %0, L1D_VA_INVAL" : : "r" (start)
+ );
+ start += line_size;
+ }
+}
+
+void invalidate_dcache_range(unsigned long start, unsigned long end)
+{
+ unsigned long line_size;
+
+ line_size = CACHE_LINE_SIZE(DCACHE);
+ while (end > start) {
+ asm volatile (
+ "\n\tcctl %0, L1D_VA_INVAL" : : "r"(start)
+ );
+ start += line_size;
+ }
+}
+
void dcache_enable(void)
{
asm volatile (
int dcache_status(void)
{
int ret;
-
asm volatile (
"mfsr $p0, $mr8\n\t"
"andi %0, $p0, 0x02\n\t"
:
: "memory"
);
-
return ret;
}
+
+#else
+void dcache_wbinval_all(void)
+{
+}
+
+void flush_dcache_range(unsigned long start, unsigned long end)
+{
+}
+
+void invalidate_dcache_range(unsigned long start, unsigned long end)
+{
+}
+
+void dcache_enable(void)
+{
+}
+
+void dcache_disable(void)
+{
+}
+
+int dcache_status(void)
+{
+ return 0;
+}
+
+#endif
+
+
+void flush_dcache_all(void)
+{
+ dcache_wbinval_all();
+}
+
+void cache_flush(void)
+{
+ flush_dcache_all();
+ invalidate_icache_all();
+}
+
+
+void flush_cache(unsigned long addr, unsigned long size)
+{
+ flush_dcache_range(addr, addr + size);
+ invalidate_icache_range(addr, addr + size);
+}
projects / oweals / u-boot.git / blobdiff