soc/marvell/mvmap2315: Add NVM driver
This driver uses BootROM callback to read and write to the nvm using I2C. Testing: booted successfully. Change-Id: I8639af3e004f6631d7e596507c106159835f979f Signed-off-by: Hakim Giydan <hgiydan@marvell.com> Reviewed-on: https://review.coreboot.org/16161 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
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@ -27,6 +27,7 @@ bootblock-y += gpio.c
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bootblock-y += flash.c
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bootblock-y += flash.c
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bootblock-y += load_validate.c
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bootblock-y += load_validate.c
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bootblock-y += media.c
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bootblock-y += media.c
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bootblock-y += nvm.c
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bootblock-y += pinmux.c
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bootblock-y += pinmux.c
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bootblock-y += pmic.c
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bootblock-y += pmic.c
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bootblock-y += reset.c
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bootblock-y += reset.c
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@ -0,0 +1,27 @@
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2016 Marvell, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __SOC_MARVELL_MVMAP2315_NVM_H__
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#define __SOC_MARVELL_MVMAP2315_NVM_H__
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#include <stdint.h>
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#define MVMAP2315_NVM_LOCKDOWN_FLAG BIT(0)
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u32 nvm_init(void);
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u32 nvm_read(u32 offset, u32 *buffer, u32 size);
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u32 nvm_write(u32 offset, u32 *buffer, u32 size);
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void nvm_lockdown(void);
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#endif /* __SOC_MARVELL_MVMAP2315_NVM_H__ */
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@ -0,0 +1,105 @@
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2016 Marvell, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <stddef.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <arch/io.h>
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#include <console/console.h>
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#include <soc/bdb.h>
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#include <soc/clock.h>
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#include <soc/flash.h>
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#include <soc/load_validate.h>
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#include <soc/nvm.h>
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struct flash_ops nvm_callbacks = {
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.init = (void *)MVMAP2315_FLASH_INIT,
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.read = (void *)MVMAP2315_FLASH_READ,
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.write = (void *)MVMAP2315_FLASH_WRITE,
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};
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static void set_nvm_parameters(struct flash_params *eeprom_info, u32 offset,
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u32 *buffer, u32 size)
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{
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eeprom_info->offset = offset;
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eeprom_info->buff = (u32)buffer;
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eeprom_info->size = size;
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eeprom_info->id = 0x0;
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eeprom_info->partition = 0x0;
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}
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u32 nvm_init(void)
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{
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int rc;
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clrbits_le32(&mvmap2315_apmu_clk->apaonclk_sdmmc_clkgenconfig,
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MVMAP2315_SDMMC_CLK_RSTN);
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setbits_le32(&mvmap2315_apmu_clk->apaonclk_sdmmc_clkgenconfig,
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MVMAP2315_SDMMC_CLK_RSTN);
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rc = nvm_callbacks.init(MVMAP2315_EEPROM, 0, 0);
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if (rc)
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printk(BIOS_DEBUG, "nvm_init failed with rc=%x.\n", rc);
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return rc;
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}
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u32 nvm_read(u32 offset, u32 *buffer, u32 size)
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{
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struct flash_params eeprom_read_info;
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u32 rc;
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set_nvm_parameters(&eeprom_read_info, offset, buffer, size);
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rc = nvm_init();
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if (rc)
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return rc;
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rc = nvm_callbacks.read(MVMAP2315_EEPROM, 0, &eeprom_read_info);
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if (rc)
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printk(BIOS_INFO, "nvm_read callback failed, rc=%x\n", rc);
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return rc;
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}
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u32 nvm_write(u32 offset, u32 *buffer, u32 size)
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{
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struct flash_params eeprom_read_info;
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u32 rc;
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set_nvm_parameters(&eeprom_read_info, offset, buffer, size);
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rc = nvm_init();
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if (rc)
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return rc;
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rc = nvm_callbacks.write(MVMAP2315_EEPROM, 0, &eeprom_read_info);
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if (rc)
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printk(BIOS_INFO, "nvm_write callback failed, rc=%x\n", rc);
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return rc;
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}
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void nvm_lockdown(void)
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{
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setbits_le32(&mvmap2315_mcu_secconfig->boot_hw_lockdown_nvm,
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MVMAP2315_NVM_LOCKDOWN_FLAG);
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}
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