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Diffstat (limited to 'arch/arm/mach-uniphier/arm32/cache_uniphier.c')
-rw-r--r--arch/arm/mach-uniphier/arm32/cache_uniphier.c156
1 files changed, 0 insertions, 156 deletions
diff --git a/arch/arm/mach-uniphier/arm32/cache_uniphier.c b/arch/arm/mach-uniphier/arm32/cache_uniphier.c
deleted file mode 100644
index 3d984a7232..0000000000
--- a/arch/arm/mach-uniphier/arm32/cache_uniphier.c
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * Copyright (C) 2012-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <linux/io.h>
-#include <asm/armv7.h>
-
-#include "ssc-regs.h"
-
-#ifdef CONFIG_UNIPHIER_L2CACHE_ON
-static void uniphier_cache_sync(void)
-{
- writel(SSCOPE_CM_SYNC, SSCOPE); /* drain internal buffers */
- readl(SSCOPE); /* need a read back to confirm */
-}
-
-static void uniphier_cache_maint_all(u32 operation)
-{
- /* clear the complete notification flag */
- writel(SSCOLPQS_EF, SSCOLPQS);
-
- /* try until the command is successfully set */
- do {
- writel(SSCOQM_S_ALL | SSCOQM_CE | operation, SSCOQM);
- } while (readl(SSCOPPQSEF) & (SSCOPPQSEF_FE | SSCOPPQSEF_OE));
-
- /* wait until the operation is completed */
- while (readl(SSCOLPQS) != SSCOLPQS_EF)
- ;
-
- uniphier_cache_sync();
-}
-
-void v7_outer_cache_flush_all(void)
-{
- uniphier_cache_maint_all(SSCOQM_CM_WB_INV);
-}
-
-void v7_outer_cache_inval_all(void)
-{
- uniphier_cache_maint_all(SSCOQM_CM_INV);
-}
-
-static void __uniphier_cache_maint_range(u32 start, u32 size, u32 operation)
-{
- /* clear the complete notification flag */
- writel(SSCOLPQS_EF, SSCOLPQS);
-
- /* try until the command is successfully set */
- do {
- writel(SSCOQM_S_ADDRESS | SSCOQM_CE | operation, SSCOQM);
- writel(start, SSCOQAD);
- writel(size, SSCOQSZ);
-
- } while (readl(SSCOPPQSEF) & (SSCOPPQSEF_FE | SSCOPPQSEF_OE));
-
- /* wait until the operation is completed */
- while (readl(SSCOLPQS) != SSCOLPQS_EF)
- ;
-}
-
-static void uniphier_cache_maint_range(u32 start, u32 end, u32 operation)
-{
- u32 size;
-
- /*
- * If start address is not aligned to cache-line,
- * do cache operation for the first cache-line
- */
- start = start & ~(SSC_LINE_SIZE - 1);
-
- size = end - start;
-
- if (unlikely(size >= (u32)(-SSC_LINE_SIZE))) {
- /* this means cache operation for all range */
- uniphier_cache_maint_all(operation);
- return;
- }
-
- /*
- * If end address is not aligned to cache-line,
- * do cache operation for the last cache-line
- */
- size = ALIGN(size, SSC_LINE_SIZE);
-
- while (size) {
- u32 chunk_size = size > SSC_RANGE_OP_MAX_SIZE ?
- SSC_RANGE_OP_MAX_SIZE : size;
- __uniphier_cache_maint_range(start, chunk_size, operation);
-
- start += chunk_size;
- size -= chunk_size;
- }
-
- uniphier_cache_sync();
-}
-
-void v7_outer_cache_flush_range(u32 start, u32 end)
-{
- uniphier_cache_maint_range(start, end, SSCOQM_CM_WB_INV);
-}
-
-void v7_outer_cache_inval_range(u32 start, u32 end)
-{
- if (start & (SSC_LINE_SIZE - 1)) {
- start &= ~(SSC_LINE_SIZE - 1);
- __uniphier_cache_maint_range(start, SSC_LINE_SIZE,
- SSCOQM_CM_WB_INV);
- start += SSC_LINE_SIZE;
- }
-
- if (start >= end) {
- uniphier_cache_sync();
- return;
- }
-
- if (end & (SSC_LINE_SIZE - 1)) {
- end &= ~(SSC_LINE_SIZE - 1);
- __uniphier_cache_maint_range(end, SSC_LINE_SIZE,
- SSCOQM_CM_WB_INV);
- }
-
- if (start >= end) {
- uniphier_cache_sync();
- return;
- }
-
- uniphier_cache_maint_range(start, end, SSCOQM_CM_INV);
-}
-
-void v7_outer_cache_enable(void)
-{
- u32 tmp;
-
- writel(U32_MAX, SSCLPDAWCR); /* activate all ways */
- tmp = readl(SSCC);
- tmp |= SSCC_ON;
- writel(tmp, SSCC);
-}
-#endif
-
-void v7_outer_cache_disable(void)
-{
- u32 tmp;
- tmp = readl(SSCC);
- tmp &= ~SSCC_ON;
- writel(tmp, SSCC);
-}
-
-void enable_caches(void)
-{
- dcache_enable();
-}