1 files changed, 0 insertions, 119 deletions
diff --git a/chip/stm32/otp-stm32f4.c b/chip/stm32/otp-stm32f4.c
deleted file mode 100644
index 45ce38d159..0000000000
--- a/chip/stm32/otp-stm32f4.c
+++ /dev/null
@@ -1,119 +0,0 @@
-/* Copyright 2017 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.
- */
-
-/* OTP implementation for STM32F411 */
-
-#include "common.h"
-#include "console.h"
-#include "flash.h"
-#include "otp.h"
-#include "registers.h"
-#include "util.h"
-
-/*
- * OTP is only used for saving the USB serial number.
- */
-#ifdef CONFIG_SERIALNO_LEN
-/* Which block to use */
-#define OTP_SERIAL_BLOCK 0
-#define OTP_SERIAL_ADDR \
-	REG32_ADDR(STM32_OTP_BLOCK_DATA(OTP_SERIAL_BLOCK, 0))
-
-/* Number of word used in the block */
-#define OTP_SERIAL_BLOCK_SIZE (CONFIG_SERIALNO_LEN / sizeof(uint32_t))
-BUILD_ASSERT(CONFIG_SERIALNO_LEN % sizeof(uint32_t) == 0);
-BUILD_ASSERT(OTP_SERIAL_BLOCK_SIZE < STM32_OTP_BLOCK_SIZE);
-
-/*
- * Write an OTP block
- *
- * @param block         block to write.
- * @param size          Number of words to write.
- * @param data          Destination buffer for data.
- */
-static int otp_write(uint8_t block, int size, const char *data)
-{
-	if (block >= STM32_OTP_BLOCK_NB)
-		return EC_ERROR_PARAM1;
-	if (size >= STM32_OTP_BLOCK_SIZE)
-		return EC_ERROR_PARAM2;
-	return crec_flash_physical_write(STM32_OTP_BLOCK_DATA(block, 0) -
-					 CONFIG_PROGRAM_MEMORY_BASE,
-					 size * sizeof(uint32_t), data);
-}
-
-/*
- * Check if an OTP block is protected.
- *
- * @param block        protected block.
- * @return non-zero if that block is read only.
- */
-static int otp_get_protect(uint8_t block)
-{
-	uint32_t lock;
-
-	lock = REG32(STM32_OTP_LOCK(block));
-	return ((lock & STM32_OPT_LOCK_MASK(block)) == 0);
-}
-
-/*
- * Set a particular OTP block as read only.
- *
- * @param block        block to protect.
- */
-static int otp_set_protect(uint8_t block)
-{
-	int rv;
-	uint32_t lock;
-
-	if (otp_get_protect(block))
-		return EC_SUCCESS;
-
-	lock = REG32(STM32_OTP_LOCK(block));
-	lock &= ~STM32_OPT_LOCK_MASK(block);
-	rv = crec_flash_physical_write(STM32_OTP_LOCK(block) -
-				       CONFIG_PROGRAM_MEMORY_BASE,
-				       sizeof(uint32_t), (char *)&lock);
-	if (rv)
-		return rv;
-	else
-		return EC_SUCCESS;
-}
-
-const char *otp_read_serial(void)
-{
-	int i;
-
-	for (i = 0; i < OTP_SERIAL_BLOCK_SIZE; i++) {
-		if (OTP_SERIAL_ADDR[i] != -1)
-			return (char *)OTP_SERIAL_ADDR;
-	}
-	return NULL;
-}
-
-int otp_write_serial(const char *serialno)
-{
-	int i, ret;
-	char otp_serial[CONFIG_SERIALNO_LEN];
-
-	if (otp_get_protect(OTP_SERIAL_BLOCK))
-		return EC_ERROR_ACCESS_DENIED;
-
-	/* Copy in serialno. */
-	for (i = 0; i < CONFIG_SERIALNO_LEN - 1; i++) {
-		otp_serial[i] = serialno[i];
-		if (serialno[i] == 0)
-			break;
-	}
-	for (; i < CONFIG_SERIALNO_LEN; i++)
-		otp_serial[i] = 0;
-
-	ret = otp_write(OTP_SERIAL_BLOCK, OTP_SERIAL_BLOCK_SIZE, otp_serial);
-	if (ret == EC_SUCCESS)
-		return otp_set_protect(OTP_SERIAL_BLOCK);
-	else
-		return ret;
-}
-#endif