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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /include/memory
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/memory')
-rw-r--r--include/memory/renesas-rpc-if.h79
1 files changed, 79 insertions, 0 deletions
diff --git a/include/memory/renesas-rpc-if.h b/include/memory/renesas-rpc-if.h
new file mode 100644
index 0000000000..b8fa30fd6b
--- /dev/null
+++ b/include/memory/renesas-rpc-if.h
@@ -0,0 +1,79 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Renesas RPC-IF core driver
+ *
+ * Copyright (C) 2018~2019 Renesas Solutions Corp.
+ * Copyright (C) 2019 Macronix International Co., Ltd.
+ * Copyright (C) 2019-2020 Cogent Embedded, Inc.
+ */
+
+#ifndef __RENESAS_RPC_IF_H
+#define __RENESAS_RPC_IF_H
+
+#include <linux/pm_runtime.h>
+#include <linux/types.h>
+
+enum rpcif_data_dir {
+ RPCIF_NO_DATA,
+ RPCIF_DATA_IN,
+ RPCIF_DATA_OUT,
+};
+
+struct rpcif_op {
+ struct {
+ u8 buswidth;
+ u8 opcode;
+ bool ddr;
+ } cmd, ocmd;
+
+ struct {
+ u8 nbytes;
+ u8 buswidth;
+ bool ddr;
+ u64 val;
+ } addr;
+
+ struct {
+ u8 ncycles;
+ u8 buswidth;
+ } dummy;
+
+ struct {
+ u8 nbytes;
+ u8 buswidth;
+ bool ddr;
+ u32 val;
+ } option;
+
+ struct {
+ u8 buswidth;
+ unsigned int nbytes;
+ enum rpcif_data_dir dir;
+ bool ddr;
+ union {
+ void *in;
+ const void *out;
+ } buf;
+ } data;
+};
+
+enum rpcif_type {
+ RPCIF_RCAR_GEN3,
+ RPCIF_RCAR_GEN4,
+ RPCIF_RZ_G2L,
+};
+
+struct rpcif {
+ struct device *dev;
+ void __iomem *dirmap;
+ size_t size;
+};
+
+int rpcif_sw_init(struct rpcif *rpc, struct device *dev);
+int rpcif_hw_init(struct device *dev, bool hyperflash);
+void rpcif_prepare(struct device *dev, const struct rpcif_op *op, u64 *offs,
+ size_t *len);
+int rpcif_manual_xfer(struct device *dev);
+ssize_t rpcif_dirmap_read(struct device *dev, u64 offs, size_t len, void *buf);
+
+#endif // __RENESAS_RPC_IF_H