soc/marvell/mvmap2315: Add flash driver

Testing: booted successfully.

Change-Id: Iaeff9f01dbfad7f313aa237e8c71c36c4ed1e06f
Signed-off-by: Hakim Giydan <hgiydan@marvell.com>
Reviewed-on: https://review.coreboot.org/15509
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

src/soc/marvell/mvmap2315/Makefile.inc

@@ -20,6 +20,7 @@ bootblock-y += clock.c
 bootblock-y += fiq.S
 bootblock-y += gic.c
 bootblock-y += gpio.c
+bootblock-y += flash.c
 bootblock-y += media.c
 bootblock-y += pinmux.c
 bootblock-y += reset.c

src/soc/marvell/mvmap2315/flash.c

@@ -0,0 +1,96 @@
+/*
+ * 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/clock.h>
+#include <soc/flash.h>
+
+struct flash_ops flash_callbacks = {
+	.init = (void *)MVMAP2315_FLASH_INIT,
+	.read = (void *)MVMAP2315_FLASH_READ,
+	.write = (void *)MVMAP2315_FLASH_WRITE,
+	.shutdown = (void *)MVMAP2315_FLASH_SHUTDOWN,
+	.set_partition = (void *)MVMAP2315_FLASH_SET_PARTITION,
+};
+
+u32 flash_init(u32 media, u32 clock_input_mhz)
+{
+	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 = flash_callbacks.init(media, 0, clock_input_mhz);
+
+	if (rc)
+		printk(BIOS_DEBUG, "flash_init failed with rc=%x.\n", rc);
+
+	return rc;
+}
+
+u32 flash_partition(u32 media, struct flash_params *flash_image_info)
+{
+	int rc;
+
+	rc = flash_callbacks.set_partition(media, 0, flash_image_info);
+
+	if (rc)
+		printk(BIOS_DEBUG, "flash_partition failed with rc=%x.\n", rc);
+
+	return rc;
+}
+
+u32 flash_read(u32 media, struct flash_params *flash_image_info)
+{
+	int rc;
+
+	rc = flash_callbacks.read(media, 0, flash_image_info);
+
+	if (rc)
+		printk(BIOS_DEBUG, "flash_read failed with rc=%x.\n", rc);
+
+	return rc;
+}
+
+u32 flash_write(u32 media, struct flash_params *flash_image_info)
+{
+	int rc;
+
+	rc = flash_callbacks.write(media, 0, flash_image_info);
+
+	if (rc)
+		printk(BIOS_DEBUG, "flash_write failed with rc=%x.\n", rc);
+
+	return rc;
+}
+
+u32 flash_shutdown(u32 media)
+{
+	int rc;
+
+	rc = flash_callbacks.shutdown(media, 0, 0);
+
+	if (rc)
+		printk(BIOS_DEBUG, "flash_shutdown failed with rc=%x.\n", rc);
+
+	return rc;
+}

src/soc/marvell/mvmap2315/include/soc/flash.h

@@ -0,0 +1,57 @@
+/*
+ * 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_FLASH_H__
+#define __SOC_MARVELL_MVMAP2315_FLASH_H__
+
+#include <stdint.h>
+
+#define MVMAP2315_FLASH_INIT		0xFFE00084
+#define MVMAP2315_FLASH_READ		0xFFE00088
+#define MVMAP2315_FLASH_WRITE		0xFFE0008C
+#define MVMAP2315_FLASH_SHUTDOWN	0xFFE00098
+#define MVMAP2315_FLASH_SET_PARTITION	0xFFE00094
+
+#define MVMAP2315_MMC_CLK_MHZ		0x00000019
+
+enum {
+	MVMAP2315_SD = 7,
+	MVMAP2315_EMMC = 8,
+	MVMAP2315_EEPROM = 27,
+};
+
+struct flash_params {
+	u32 offset;
+	u32 buff;
+	u32 size;
+	u32 id;
+	u32 partition;
+};
+
+struct flash_ops {
+	u32 (*init)(u32 media, u32 context, u32 clock_input_mhz);
+	u32 (*read)(u32 media, u32 context, struct flash_params *);
+	u32 (*write)(u32 media, u32 context, struct flash_params *);
+	u32 (*shutdown)(u32 media, u32 context, struct flash_params *);
+	u32 (*set_partition)(u32 media, u32 context, struct flash_params *);
+};
+
+u32 flash_init(u32 media, u32 clock_input_mhz);
+u32 flash_read(u32 media, struct flash_params *flash_image_info);
+u32 flash_write(u32 media, struct flash_params *flash_image_info);
+u32 flash_shutdown(u32 media);
+u32 flash_partition(u32 media, struct flash_params *flash_image_info);
+
+#endif /* __SOC_MARVELL_MVMAP2315_FLASH_H__ */