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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2016 Marvell, 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.
*/
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <arch/io.h>
#include <console/console.h>
#include <soc/bdb.h>
#include <soc/clock.h>
#include <soc/flash.h>
#include <soc/load_validate.h>
#include <soc/nvm.h>
struct flash_ops nvm_callbacks = {
.init = (void *)MVMAP2315_FLASH_INIT,
.read = (void *)MVMAP2315_FLASH_READ,
.write = (void *)MVMAP2315_FLASH_WRITE,
};
static void set_nvm_parameters(struct flash_params *eeprom_info, u32 offset,
u32 *buffer, u32 size)
{
eeprom_info->offset = offset;
eeprom_info->buff = (u32)buffer;
eeprom_info->size = size;
eeprom_info->id = 0x0;
eeprom_info->partition = 0x0;
}
u32 nvm_init(void)
{
int rc;
clrbits_le32(&mvmap2315_apmu_clk->apaonclk_sdmmc_clkgenconfig,
MVMAP2315_SDMMC_CLK_RSTN);
setbits_le32(&mvmap2315_apmu_clk->apaonclk_sdmmc_clkgenconfig,
MVMAP2315_SDMMC_CLK_RSTN);
rc = nvm_callbacks.init(MVMAP2315_EEPROM, 0, 0);
if (rc)
printk(BIOS_DEBUG, "nvm_init failed with rc=%x.\n", rc);
return rc;
}
u32 nvm_read(u32 offset, u32 *buffer, u32 size)
{
struct flash_params eeprom_read_info;
u32 rc;
set_nvm_parameters(&eeprom_read_info, offset, buffer, size);
rc = nvm_init();
if (rc)
return rc;
rc = nvm_callbacks.read(MVMAP2315_EEPROM, 0, &eeprom_read_info);
if (rc)
printk(BIOS_INFO, "nvm_read callback failed, rc=%x\n", rc);
return rc;
}
u32 nvm_write(u32 offset, u32 *buffer, u32 size)
{
struct flash_params eeprom_read_info;
u32 rc;
set_nvm_parameters(&eeprom_read_info, offset, buffer, size);
rc = nvm_init();
if (rc)
return rc;
rc = nvm_callbacks.write(MVMAP2315_EEPROM, 0, &eeprom_read_info);
if (rc)
printk(BIOS_INFO, "nvm_write callback failed, rc=%x\n", rc);
return rc;
}
void nvm_lockdown(void)
{
setbits_le32(&mvmap2315_mcu_secconfig->boot_hw_lockdown_nvm,
MVMAP2315_NVM_LOCKDOWN_FLAG);
}
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