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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>
This commit is contained in:
Aaron Durbin 2017-12-15 12:51:49 -07:00
parent a71276b14e
commit b4de9ec677
3 changed files with 0 additions and 114 deletions
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1
src/soc/intel/fsp_baytrail/Makefile.inc
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@ -33,7 +33,6 @@ romstage-y += memmap.c
ramstage-y += tsc_freq.c ramstage-y += tsc_freq.c
romstage-y += tsc_freq.c romstage-y += tsc_freq.c
smm-$(CONFIG_HAVE_SMI_HANDLER) += tsc_freq.c smm-$(CONFIG_HAVE_SMI_HANDLER) += tsc_freq.c
ramstage-$(CONFIG_CACHE_MRC_SETTINGS) += nvm.c
ramstage-y += spi.c ramstage-y += spi.c
smm-$(CONFIG_HAVE_SMI_HANDLER) += spi.c smm-$(CONFIG_HAVE_SMI_HANDLER) += spi.c
ramstage-y += chip.c ramstage-y += chip.c

30
src/soc/intel/fsp_baytrail/include/soc/nvm.h
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@ -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_ */

83
src/soc/intel/fsp_baytrail/nvm.c
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@ -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;
}