From 78785e7c413ad18c96260c7a3cf5acc20103bbd2 Mon Sep 17 00:00:00 2001 From: Hakim Giydan Date: Thu, 8 Sep 2016 10:55:44 -0700 Subject: [PATCH] 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 Reviewed-on: https://review.coreboot.org/16161 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth --- src/soc/marvell/mvmap2315/Makefile.inc | 1 + src/soc/marvell/mvmap2315/include/soc/nvm.h | 27 +++++ src/soc/marvell/mvmap2315/nvm.c | 105 ++++++++++++++++++++ 3 files changed, 133 insertions(+) create mode 100644 src/soc/marvell/mvmap2315/include/soc/nvm.h create mode 100644 src/soc/marvell/mvmap2315/nvm.c diff --git a/src/soc/marvell/mvmap2315/Makefile.inc b/src/soc/marvell/mvmap2315/Makefile.inc index 606a3cf246..ab3bddb2f1 100644 --- a/src/soc/marvell/mvmap2315/Makefile.inc +++ b/src/soc/marvell/mvmap2315/Makefile.inc @@ -27,6 +27,7 @@ bootblock-y += gpio.c bootblock-y += flash.c bootblock-y += load_validate.c bootblock-y += media.c +bootblock-y += nvm.c bootblock-y += pinmux.c bootblock-y += pmic.c bootblock-y += reset.c diff --git a/src/soc/marvell/mvmap2315/include/soc/nvm.h b/src/soc/marvell/mvmap2315/include/soc/nvm.h new file mode 100644 index 0000000000..b79c5f683b --- /dev/null +++ b/src/soc/marvell/mvmap2315/include/soc/nvm.h @@ -0,0 +1,27 @@ +/* + * 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. + */ +#ifndef __SOC_MARVELL_MVMAP2315_NVM_H__ +#define __SOC_MARVELL_MVMAP2315_NVM_H__ + +#include + +#define MVMAP2315_NVM_LOCKDOWN_FLAG BIT(0) + +u32 nvm_init(void); +u32 nvm_read(u32 offset, u32 *buffer, u32 size); +u32 nvm_write(u32 offset, u32 *buffer, u32 size); +void nvm_lockdown(void); + +#endif /* __SOC_MARVELL_MVMAP2315_NVM_H__ */ diff --git a/src/soc/marvell/mvmap2315/nvm.c b/src/soc/marvell/mvmap2315/nvm.c new file mode 100644 index 0000000000..7e33e98fa2 --- /dev/null +++ b/src/soc/marvell/mvmap2315/nvm.c @@ -0,0 +1,105 @@ +/* + * 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 +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +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); +}