Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 65 insertions, 0 deletions

diff --git a/include/linux/mtd/spear_smi.h b/include/linux/mtd/spear_smi.h
new file mode 100644
index 000000000..581603ac1
--- /dev/null
+++ b/include/linux/mtd/spear_smi.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright © 2010 ST Microelectronics
+ * Shiraz Hashim <shiraz.linux.kernel@gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __MTD_SPEAR_SMI_H
+#define __MTD_SPEAR_SMI_H
+
+#include <linux/types.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+
+/* max possible slots for serial-nor flash chip in the SMI controller */
+#define MAX_NUM_FLASH_CHIP	4
+
+/* macro to define partitions for flash devices */
+#define DEFINE_PARTS(n, of, s)		\
+{					\
+	.name = n,			\
+	.offset = of,			\
+	.size = s,			\
+}
+
+/**
+ * struct spear_smi_flash_info - platform structure for passing flash
+ * information
+ *
+ * name: name of the serial nor flash for identification
+ * mem_base: the memory base on which the flash is mapped
+ * size: size of the flash in bytes
+ * partitions: parition details
+ * nr_partitions: number of partitions
+ * fast_mode: whether flash supports fast mode
+ */
+
+struct spear_smi_flash_info {
+	char *name;
+	unsigned long mem_base;
+	unsigned long size;
+	struct mtd_partition *partitions;
+	int nr_partitions;
+	u8 fast_mode;
+};
+
+/**
+ * struct spear_smi_plat_data - platform structure for configuring smi
+ *
+ * clk_rate: clk rate at which SMI must operate
+ * num_flashes: number of flashes present on board
+ * board_flash_info: specific details of each flash present on board
+ */
+struct spear_smi_plat_data {
+	unsigned long clk_rate;
+	int num_flashes;
+	struct spear_smi_flash_info *board_flash_info;
+	struct device_node *np[MAX_NUM_FLASH_CHIP];
+};
+
+#endif /* __MTD_SPEAR_SMI_H */