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authorHakim Giydan <hgiydan@marvell.com>2016-09-08 10:55:44 -0700
committerMartin Roth <martinroth@google.com>2016-09-13 16:58:36 +0200
commit78785e7c413ad18c96260c7a3cf5acc20103bbd2 (patch)
tree55f7d7155f22ad35e2b5a1837b16047996bbbe69 /src
parent1bf8c4d443af091c2a0f4779091588d11f5d2f5e (diff)
downloadcoreboot-78785e7c413ad18c96260c7a3cf5acc20103bbd2.tar.xz
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>
Diffstat (limited to 'src')
-rw-r--r--src/soc/marvell/mvmap2315/Makefile.inc1
-rw-r--r--src/soc/marvell/mvmap2315/include/soc/nvm.h27
-rw-r--r--src/soc/marvell/mvmap2315/nvm.c105
3 files changed, 133 insertions, 0 deletions
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 <stdint.h>
+
+#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 <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);
+}