soc/intel/fsp_baytrail: remove nvm headers and code

This code is not used at all any longer. Remove it.

BUG=b:69614064

Change-Id: I362280f876a335c0cc1c5691b86f5b27e3b5e2c9
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/22904
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

3 files changed, 0 insertions, 114 deletions

diff --git a/src/soc/intel/fsp_baytrail/Makefile.inc b/src/soc/intel/fsp_baytrail/Makefile.inc
index f0866652c4..e01a944afd 100644
--- a/src/soc/intel/fsp_baytrail/Makefile.inc
+++ b/src/soc/intel/fsp_baytrail/Makefile.inc
@@ -33,7 +33,6 @@ romstage-y += memmap.c
 ramstage-y += tsc_freq.c
 romstage-y += tsc_freq.c
 smm-$(CONFIG_HAVE_SMI_HANDLER) += tsc_freq.c
-ramstage-$(CONFIG_CACHE_MRC_SETTINGS) += nvm.c
 ramstage-y += spi.c
 smm-$(CONFIG_HAVE_SMI_HANDLER) += spi.c
 ramstage-y += chip.c
diff --git a/src/soc/intel/fsp_baytrail/include/soc/nvm.h b/src/soc/intel/fsp_baytrail/include/soc/nvm.h
deleted file mode 100644
index d03506e6d2..0000000000
--- a/src/soc/intel/fsp_baytrail/include/soc/nvm.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2013 Google Inc.
- *
- * 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; version 2 of the License.
- *
- * 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.
- */
-
-#ifndef _NVM_H_
-#define _NVM_H_
-
-#include <stddef.h>
-
-/* Determine if area is erased. returns 1 if erased. 0 otherwise. */
-int nvm_is_erased(const void *start, size_t size);
-
-/* Erase region according to start and size. Returns < 0 on error else 0. */
-int nvm_erase(void *start, size_t size);
-
-/* Write data to NVM. Returns 0 on success < 0 on error.  */
-int nvm_write(void *start, const void *data, size_t size);
-
-#endif /* _NVM_H_ */
diff --git a/src/soc/intel/fsp_baytrail/nvm.c b/src/soc/intel/fsp_baytrail/nvm.c
deleted file mode 100644
index a4a7998a0f..0000000000
--- a/src/soc/intel/fsp_baytrail/nvm.c
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2013 Google Inc.
- * Copyright (C) 2014 Sage Electronic Engineering, LLC.
- *
- * 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; version 2 of the License.
- *
- * 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.
- */
-
-#include <stdint.h>
-#include <stddef.h>
-#include <console/console.h>
-#include <string.h>
-#include <spi-generic.h>
-#include <spi_flash.h>
-#include <soc/nvm.h>
-#include <stdint.h>
-
-/* This module assumes the flash is memory mapped just below 4GiB in the
- * address space for reading. Also this module assumes an area it erased
- * when all bytes read as all 0xff's. */
-
-static struct spi_flash flash;
-static bool spi_flash_init_done;
-
-static int nvm_init(void)
-{
-	if (spi_flash_init_done == true)
-		return 0;
-
-	spi_init();
-	if (spi_flash_probe(0, 0, &flash)) {
-		printk(BIOS_DEBUG, "Could not find SPI device\n");
-		return -1;
-	}
-
-	spi_flash_init_done = true;
-	return 0;
-}
-
-/* Convert memory mapped pointer to flash offset. */
-static inline uint32_t to_flash_offset(void *p)
-{
-	return CONFIG_ROM_SIZE + (uintptr_t)p;
-}
-
-int nvm_is_erased(const void *start, size_t size)
-{
-	const uint8_t *cur = start;
-	const uint8_t erased_value = 0xff;
-
-	while (size > 0) {
-		if (*cur != erased_value)
-			return 0;
-		cur++;
-		size--;
-	}
-	return 1;
-}
-
-int nvm_erase(void *start, size_t size)
-{
-	if (nvm_init() < 0)
-		return -1;
-	spi_flash_erase(&flash, to_flash_offset(start), size);
-	return 0;
-}
-
-/* Write data to NVM. Returns 0 on success < 0 on error.  */
-int nvm_write(void *start, const void *data, size_t size)
-{
-	if (nvm_init() < 0)
-		return -1;
-	spi_flash_write(&flash, to_flash_offset(start), size, data);
-	return 0;
-}