1 files changed, 0 insertions, 82 deletions
diff --git a/chip/stm32/bkpdata.c b/chip/stm32/bkpdata.c
deleted file mode 100644
index 8c85366857..0000000000
--- a/chip/stm32/bkpdata.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/* Copyright 2020 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include <assert.h>
-
-#include "bkpdata.h"
-#include "registers.h"
-#include "system.h" /* enum system_bbram_idx */
-#include "task.h"
-
-uint16_t bkpdata_read(enum bkpdata_index index)
-{
-	if (index < 0 || index >= STM32_BKP_ENTRIES)
-		return 0;
-
-	if (index & 1)
-		return STM32_BKP_DATA(index >> 1) >> 16;
-	else
-		return STM32_BKP_DATA(index >> 1) & 0xFFFF;
-}
-
-int bkpdata_write(enum bkpdata_index index, uint16_t value)
-{
-	static struct mutex bkpdata_write_mutex;
-	int use_mutex = !in_interrupt_context();
-
-	if (index < 0 || index >= STM32_BKP_ENTRIES)
-		return EC_ERROR_INVAL;
-
-	/*
-	 * Two entries share a single 32-bit register, lock mutex to prevent
-	 * read/mask/write races.
-	 */
-	if (use_mutex)
-		mutex_lock(&bkpdata_write_mutex);
-	if (index & 1) {
-		uint32_t val = STM32_BKP_DATA(index >> 1);
-		val = (val & 0x0000FFFF) | (value << 16);
-		STM32_BKP_DATA(index >> 1) = val;
-	} else {
-		uint32_t val = STM32_BKP_DATA(index >> 1);
-		val = (val & 0xFFFF0000) | value;
-		STM32_BKP_DATA(index >> 1) = val;
-	}
-	if (use_mutex)
-		mutex_unlock(&bkpdata_write_mutex);
-
-	return EC_SUCCESS;
-}
-
-int bkpdata_index_lookup(enum system_bbram_idx idx, int *msb)
-{
-	*msb = 0;
-
-#ifdef CONFIG_USB_PD_DUAL_ROLE
-	if (idx == SYSTEM_BBRAM_IDX_PD0)
-		return BKPDATA_INDEX_PD0;
-	if (idx == SYSTEM_BBRAM_IDX_PD1)
-		return BKPDATA_INDEX_PD1;
-	if (idx == SYSTEM_BBRAM_IDX_PD2)
-		return BKPDATA_INDEX_PD2;
-#endif
-	return -1;
-}
-
-uint32_t bkpdata_read_reset_flags()
-{
-	uint32_t flags = bkpdata_read(BKPDATA_INDEX_SAVED_RESET_FLAGS);
-
-	flags |= bkpdata_read(BKPDATA_INDEX_SAVED_RESET_FLAGS_2) << 16;
-
-	return flags;
-}
-
-__overridable
-void bkpdata_write_reset_flags(uint32_t save_flags)
-{
-	bkpdata_write(BKPDATA_INDEX_SAVED_RESET_FLAGS, save_flags & 0xffff);
-	bkpdata_write(BKPDATA_INDEX_SAVED_RESET_FLAGS_2, save_flags >> 16);
-}