Merge branch 'master' of git://git.denx.de/u-boot-fsl-qoriq

1 files changed, 132 insertions, 0 deletions

diff --git a/include/fsl-mc/fsl_mc_cmd.h b/include/fsl-mc/fsl_mc_cmd.h
new file mode 100644
index 0000000000..e7fcb5b142
--- /dev/null
+++ b/include/fsl-mc/fsl_mc_cmd.h
@@ -0,0 +1,132 @@
+/* Copyright 2014 Freescale Semiconductor Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#ifndef __FSL_MC_CMD_H
+#define __FSL_MC_CMD_H
+
+#define MC_CMD_NUM_OF_PARAMS	7
+
+#define MAKE_UMASK64(_width) \
+	((uint64_t)((_width) < 64 ? ((uint64_t)1 << (_width)) - 1 : -1))
+
+static inline uint64_t u64_enc(int lsoffset, int width, uint64_t val)
+{
+	return (uint64_t)(((uint64_t)val & MAKE_UMASK64(width)) << lsoffset);
+}
+static inline uint64_t u64_dec(uint64_t val, int lsoffset, int width)
+{
+	return (uint64_t)((val >> lsoffset) & MAKE_UMASK64(width));
+}
+
+struct mc_command {
+	uint64_t header;
+	uint64_t params[MC_CMD_NUM_OF_PARAMS];
+};
+
+enum mc_cmd_status {
+	MC_CMD_STATUS_OK = 0x0, /*!< Completed successfully */
+	MC_CMD_STATUS_READY = 0x1, /*!< Ready to be processed */
+	MC_CMD_STATUS_AUTH_ERR = 0x3, /*!< Authentication error */
+	MC_CMD_STATUS_NO_PRIVILEGE = 0x4, /*!< No privilege */
+	MC_CMD_STATUS_DMA_ERR = 0x5, /*!< DMA or I/O error */
+	MC_CMD_STATUS_CONFIG_ERR = 0x6, /*!< Configuration error */
+	MC_CMD_STATUS_TIMEOUT = 0x7, /*!< Operation timed out */
+	MC_CMD_STATUS_NO_RESOURCE = 0x8, /*!< No resources */
+	MC_CMD_STATUS_NO_MEMORY = 0x9, /*!< No memory available */
+	MC_CMD_STATUS_BUSY = 0xA, /*!< Device is busy */
+	MC_CMD_STATUS_UNSUPPORTED_OP = 0xB, /*!< Unsupported operation */
+	MC_CMD_STATUS_INVALID_STATE = 0xC /*!< Invalid state */
+};
+
+#define MC_CMD_HDR_CMDID_O	52	/* Command ID field offset */
+#define MC_CMD_HDR_CMDID_S	12	/* Command ID field size */
+#define MC_CMD_HDR_AUTHID_O	38	/* Authentication ID field offset */
+#define MC_CMD_HDR_AUTHID_S	10	/* Authentication ID field size */
+#define MC_CMD_HDR_STATUS_O	16	/* Status field offset */
+#define MC_CMD_HDR_STATUS_S	8	/* Status field size*/
+#define MC_CMD_HDR_PRI_O	15	/* Priority field offset */
+#define MC_CMD_HDR_PRI_S	1	/* Priority field size */
+
+#define MC_CMD_HDR_READ_STATUS(_hdr) \
+	((enum mc_cmd_status)u64_dec((_hdr), \
+		MC_CMD_HDR_STATUS_O, MC_CMD_HDR_STATUS_S))
+
+#define MC_CMD_HDR_READ_AUTHID(_hdr) \
+	((uint16_t)u64_dec((_hdr), MC_CMD_HDR_AUTHID_O, MC_CMD_HDR_AUTHID_S))
+
+#define MC_CMD_PRI_LOW		0 /*!< Low Priority command indication */
+#define MC_CMD_PRI_HIGH		1 /*!< High Priority command indication */
+
+#define MC_CMD_OP(_cmd, _param, _offset, _width, _type, _arg) \
+	((_cmd).params[_param] |= u64_enc((_offset), (_width), _arg))
+
+#define MC_RSP_OP(_cmd, _param, _offset, _width, _type, _arg) \
+	(_arg = (_type)u64_dec(_cmd.params[_param], (_offset), (_width)))
+
+static inline uint64_t mc_encode_cmd_header(uint16_t cmd_id,
+					    uint8_t priority,
+					    uint16_t auth_id)
+{
+	uint64_t hdr;
+
+	hdr = u64_enc(MC_CMD_HDR_CMDID_O, MC_CMD_HDR_CMDID_S, cmd_id);
+	hdr |= u64_enc(MC_CMD_HDR_AUTHID_O, MC_CMD_HDR_AUTHID_S, auth_id);
+	hdr |= u64_enc(MC_CMD_HDR_PRI_O, MC_CMD_HDR_PRI_S, priority);
+	hdr |= u64_enc(MC_CMD_HDR_STATUS_O, MC_CMD_HDR_STATUS_S,
+		       MC_CMD_STATUS_READY);
+
+	return hdr;
+}
+
+/**
+ * mc_write_command - writes a command to a Management Complex (MC) portal
+ *
+ * @portal: pointer to an MC portal
+ * @cmd: pointer to a filled command
+ */
+static inline void mc_write_command(struct mc_command __iomem *portal,
+				    struct mc_command *cmd)
+{
+	int i;
+
+	/* copy command parameters into the portal */
+	for (i = 0; i < MC_CMD_NUM_OF_PARAMS; i++)
+		writeq(cmd->params[i], &portal->params[i]);
+
+	/* submit the command by writing the header */
+	writeq(cmd->header, &portal->header);
+}
+
+/**
+ * mc_read_response - reads the response for the last MC command from a
+ * Management Complex (MC) portal
+ *
+ * @portal: pointer to an MC portal
+ * @resp: pointer to command response buffer
+ *
+ * Returns MC_CMD_STATUS_OK on Success; Error code otherwise.
+ */
+static inline enum mc_cmd_status mc_read_response(
+					struct mc_command __iomem *portal,
+					struct mc_command *resp)
+{
+	int i;
+	enum mc_cmd_status status;
+
+	/* Copy command response header from MC portal: */
+	resp->header = readq(&portal->header);
+	status = MC_CMD_HDR_READ_STATUS(resp->header);
+	if (status != MC_CMD_STATUS_OK)
+		return status;
+
+	/* Copy command response data from MC portal: */
+	for (i = 0; i < MC_CMD_NUM_OF_PARAMS; i++)
+		resp->params[i] = readq(&portal->params[i]);
+
+	return status;
+}
+
+int mc_send_command(struct fsl_mc_io *mc_io, struct mc_command *cmd);
+
+#endif /* __FSL_MC_CMD_H */