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Diffstat (limited to 'arch/riscv/cpu/ax25/cache.c')
-rw-r--r--arch/riscv/cpu/ax25/cache.c172
1 files changed, 0 insertions, 172 deletions
diff --git a/arch/riscv/cpu/ax25/cache.c b/arch/riscv/cpu/ax25/cache.c
deleted file mode 100644
index 35f23c748d..0000000000
--- a/arch/riscv/cpu/ax25/cache.c
+++ /dev/null
@@ -1,172 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (C) 2017 Andes Technology Corporation
- * Rick Chen, Andes Technology Corporation <rick@andestech.com>
- */
-
-#include <common.h>
-#include <cpu_func.h>
-#include <dm.h>
-#include <asm/cache.h>
-#include <dm/uclass-internal.h>
-#include <cache.h>
-#include <asm/csr.h>
-
-#ifdef CONFIG_RISCV_NDS_CACHE
-#if CONFIG_IS_ENABLED(RISCV_MMODE)
-/* mcctlcommand */
-#define CCTL_REG_MCCTLCOMMAND_NUM 0x7cc
-
-/* D-cache operation */
-#define CCTL_L1D_WBINVAL_ALL 6
-#endif
-#endif
-
-#ifdef CONFIG_V5L2_CACHE
-static void _cache_enable(void)
-{
- struct udevice *dev = NULL;
-
- uclass_find_first_device(UCLASS_CACHE, &dev);
-
- if (dev)
- cache_enable(dev);
-}
-
-static void _cache_disable(void)
-{
- struct udevice *dev = NULL;
-
- uclass_find_first_device(UCLASS_CACHE, &dev);
-
- if (dev)
- cache_disable(dev);
-}
-#endif
-
-void flush_dcache_all(void)
-{
-#if !CONFIG_IS_ENABLED(SYS_ICACHE_OFF)
-#ifdef CONFIG_RISCV_NDS_CACHE
-#if CONFIG_IS_ENABLED(RISCV_MMODE)
- csr_write(CCTL_REG_MCCTLCOMMAND_NUM, CCTL_L1D_WBINVAL_ALL);
-#endif
-#endif
-#endif
-}
-
-void flush_dcache_range(unsigned long start, unsigned long end)
-{
- flush_dcache_all();
-}
-
-void invalidate_dcache_range(unsigned long start, unsigned long end)
-{
- flush_dcache_all();
-}
-
-void icache_enable(void)
-{
-#if !CONFIG_IS_ENABLED(SYS_ICACHE_OFF)
-#ifdef CONFIG_RISCV_NDS_CACHE
-#if CONFIG_IS_ENABLED(RISCV_MMODE)
- asm volatile (
- "csrr t1, mcache_ctl\n\t"
- "ori t0, t1, 0x1\n\t"
- "csrw mcache_ctl, t0\n\t"
- );
-#endif
-#endif
-#endif
-}
-
-void icache_disable(void)
-{
-#if !CONFIG_IS_ENABLED(SYS_ICACHE_OFF)
-#ifdef CONFIG_RISCV_NDS_CACHE
-#if CONFIG_IS_ENABLED(RISCV_MMODE)
- asm volatile (
- "fence.i\n\t"
- "csrr t1, mcache_ctl\n\t"
- "andi t0, t1, ~0x1\n\t"
- "csrw mcache_ctl, t0\n\t"
- );
-#endif
-#endif
-#endif
-}
-
-void dcache_enable(void)
-{
-#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
-#ifdef CONFIG_RISCV_NDS_CACHE
-#if CONFIG_IS_ENABLED(RISCV_MMODE)
- asm volatile (
- "csrr t1, mcache_ctl\n\t"
- "ori t0, t1, 0x2\n\t"
- "csrw mcache_ctl, t0\n\t"
- );
-#endif
-#ifdef CONFIG_V5L2_CACHE
- _cache_enable();
-#endif
-#endif
-#endif
-}
-
-void dcache_disable(void)
-{
-#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
-#ifdef CONFIG_RISCV_NDS_CACHE
-#if CONFIG_IS_ENABLED(RISCV_MMODE)
- csr_write(CCTL_REG_MCCTLCOMMAND_NUM, CCTL_L1D_WBINVAL_ALL);
- asm volatile (
- "csrr t1, mcache_ctl\n\t"
- "andi t0, t1, ~0x2\n\t"
- "csrw mcache_ctl, t0\n\t"
- );
-#endif
-#ifdef CONFIG_V5L2_CACHE
- _cache_disable();
-#endif
-#endif
-#endif
-}
-
-int icache_status(void)
-{
- int ret = 0;
-
-#ifdef CONFIG_RISCV_NDS_CACHE
-#if CONFIG_IS_ENABLED(RISCV_MMODE)
- asm volatile (
- "csrr t1, mcache_ctl\n\t"
- "andi %0, t1, 0x01\n\t"
- : "=r" (ret)
- :
- : "memory"
- );
-#endif
-#endif
-
- return ret;
-}
-
-int dcache_status(void)
-{
- int ret = 0;
-
-#ifdef CONFIG_RISCV_NDS_CACHE
-#if CONFIG_IS_ENABLED(RISCV_MMODE)
- asm volatile (
- "csrr t1, mcache_ctl\n\t"
- "andi %0, t1, 0x02\n\t"
- : "=r" (ret)
- :
- : "memory"
- );
-#endif
-#endif
-
- return ret;
-}