[PATCH V6 2/3] firmware: imx: add SCU firmware driver support

Dong Aisheng aisheng.dong at nxp.com
Tue Sep 18 20:04:05 PDT 2018


The System Controller Firmware (SCFW) is a low-level system function
which runs on a dedicated Cortex-M core to provide power, clock, and
resource management. It exists on some i.MX8 processors. e.g. i.MX8QM
(QM, QP), and i.MX8QX (QXP, DX).

This patch implements the SCU firmware IPC function and the common
message sending API sc_call_rpc.

Cc: Shawn Guo <shawnguo at kernel.org>
Cc: Sascha Hauer <kernel at pengutronix.de>
Cc: Fabio Estevam <fabio.estevam at nxp.com>
Cc: Jassi Brar <jassisinghbrar at gmail.com>
Signed-off-by: Dong Aisheng <aisheng.dong at nxp.com>
---
v5->v6:
 * remove resource management (sc_ipc_open/close)
 * make sc_call_rpc and related structure visible by client drivers,
   so remove internal headfile drivers/soc/imx/sc/main/rpc.h accordingly
 * move scu firmware driver under drivers/firmware/imx
 * patch title changed
v4->v5:
 * switch to new generic MU binding.
   Use 8 separate mu channels in one MU instance for SCU communication
 * create struct sc_rpc_msg to separate the msg header and service,
   accordingly the old sc_rpc_msg_s with raw data union is removed.
   This can gain better readability.
 * remove defines like RPC_XXX(MSG)
 * remove unused types
 * headfiles cleanup
 * NOTE:
   With the new approach that uses 8 separate irq driven changes, i still
   did not find a clean way to better support receiving msg over 4 words.
   So the current driver does not support it.
   As in current SCU protocol, there's only a minor of commands need
   receiving msg over 4 words which is still not used by Linux, so it does
   not affect the normal function.
 * Know issue:
   The performance drops a lot after using 8 separate interrupt driven MUs
   to send/receive msgs.
   e.g. Sending a scu message with tx size 2 words and rx size 2 words:
   Former (polling) : < 10us to handle a SCU msg
   Now (irq) : 20~30 us to handle a SCU msg (Caused by interrupt latency)
v3->v4:
 * change to use mailbox
 * separate the IPC part and RPC API for easy review
 * headfiles cleanup
v2->v3:
 * add the ipc read/write error check
v1->v2:
 * change the type of sc_ipc_t from uint32_t to unsigned long.
   This can make it be capable of storing 64 bit pointer in ARMv8 system.
 * Update to use the new MU library implemenation (handle iomem privately)
 * remove unused delcarations e.g. sc_rpc_dispatch and sc_rpc_xlate.
 * remove unneeded pad ctl functions
---
 drivers/firmware/Kconfig       |   1 +
 drivers/firmware/imx/Kconfig   |  11 +
 drivers/firmware/imx/Makefile  |   2 +
 drivers/firmware/imx/imx-scu.c | 223 +++++++++++++++
 include/soc/imx/scu/ipc.h      |  59 ++++
 include/soc/imx/scu/sci.h      |  16 ++
 include/soc/imx/scu/types.h    | 636 +++++++++++++++++++++++++++++++++++++++++
 7 files changed, 948 insertions(+)
 create mode 100644 drivers/firmware/imx/Kconfig
 create mode 100644 drivers/firmware/imx/Makefile
 create mode 100644 drivers/firmware/imx/imx-scu.c
 create mode 100644 include/soc/imx/scu/ipc.h
 create mode 100644 include/soc/imx/scu/sci.h
 create mode 100644 include/soc/imx/scu/types.h

diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index 6e83880..bd9e4e2 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -289,6 +289,7 @@ config HAVE_ARM_SMCCC
 source "drivers/firmware/broadcom/Kconfig"
 source "drivers/firmware/google/Kconfig"
 source "drivers/firmware/efi/Kconfig"
+source "drivers/firmware/imx/Kconfig"
 source "drivers/firmware/meson/Kconfig"
 source "drivers/firmware/tegra/Kconfig"
 
diff --git a/drivers/firmware/imx/Kconfig b/drivers/firmware/imx/Kconfig
new file mode 100644
index 0000000..b170c28
--- /dev/null
+++ b/drivers/firmware/imx/Kconfig
@@ -0,0 +1,11 @@
+config IMX_SCU
+	bool "IMX SCU Protocol driver"
+	depends on IMX_MBOX
+	help
+	  The System Controller Firmware (SCFW) is a low-level system function
+	  which runs on a dedicated Cortex-M core to provide power, clock, and
+	  resource management. It exists on some i.MX8 processors. e.g. i.MX8QM
+	  (QM, QP), and i.MX8QX (QXP, DX).
+
+	  This driver manages the IPC interface between host CPU and the
+	  SCU firmware running on M4.
diff --git a/drivers/firmware/imx/Makefile b/drivers/firmware/imx/Makefile
new file mode 100644
index 0000000..9b1e2fe
--- /dev/null
+++ b/drivers/firmware/imx/Makefile
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_IMX_SCU)	+= imx-scu.o
diff --git a/drivers/firmware/imx/imx-scu.c b/drivers/firmware/imx/imx-scu.c
new file mode 100644
index 0000000..25e7bfe
--- /dev/null
+++ b/drivers/firmware/imx/imx-scu.c
@@ -0,0 +1,223 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2018 NXP
+ *  Author: Dong Aisheng <aisheng.dong at nxp.com>
+ *
+ * Implementation of the IPC functions using MUs (client side).
+ *
+ */
+
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/mailbox_client.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+
+#include <soc/imx/scu/types.h>
+#include <soc/imx/scu/ipc.h>
+
+#define SCU_MU_CHAN_NUM		8
+#define MAX_RX_TIMEOUT		(msecs_to_jiffies(30))
+
+struct sc_chan {
+	struct sc_ipc *sc_ipc;
+
+	struct mbox_client cl;
+	struct mbox_chan *ch;
+	int idx;
+};
+
+struct sc_ipc {
+	/* SCU uses 4 Tx and 4 Rx channels */
+	struct sc_chan chans[SCU_MU_CHAN_NUM];
+	struct device *dev;
+	struct mutex lock;
+	struct completion done;
+
+	/* temporarily store the SCU msg */
+	u32 *msg;
+	u8 rx_size;
+	u8 count;
+};
+
+static struct sc_ipc *scu_ipc_handle;
+
+/*
+ * Get the default handle used by SCU
+ */
+int sc_ipc_get_handle(struct sc_ipc *ipc)
+{
+	if (!scu_ipc_handle)
+		return -EPROBE_DEFER;
+
+	ipc = scu_ipc_handle;
+	return 0;
+}
+EXPORT_SYMBOL(sc_ipc_get_handle);
+
+static void sc_rx_callback(struct mbox_client *c, void *msg)
+{
+	struct sc_chan *sc_chan = container_of(c, struct sc_chan, cl);
+	struct sc_ipc *sc_ipc = sc_chan->sc_ipc;
+	struct sc_rpc_msg *hdr;
+	u32 *data = msg;
+
+	if (sc_chan->idx == 0) {
+		hdr = msg;
+		sc_ipc->rx_size = hdr->size;
+		dev_dbg(sc_ipc->dev, "msg rx size %u\n", sc_ipc->rx_size);
+		if (sc_ipc->rx_size > 4)
+			dev_warn(sc_ipc->dev, "RPC does not support receiving over 4 words: %u\n",
+				 sc_ipc->rx_size);
+	}
+
+	sc_ipc->msg[sc_chan->idx] = *data;
+	sc_ipc->count++;
+
+	dev_dbg(sc_ipc->dev, "mu %u msg %u 0x%x\n", sc_chan->idx,
+		sc_ipc->count, *data);
+
+	if ((sc_ipc->rx_size != 0) && (sc_ipc->count == sc_ipc->rx_size))
+		complete(&sc_ipc->done);
+}
+
+int sc_ipc_write(struct sc_ipc *sc_ipc, void *msg)
+{
+	struct sc_rpc_msg *hdr = msg;
+	struct sc_chan *sc_chan;
+	u32 *data = msg;
+	int ret;
+	int i;
+
+	/* Check size */
+	if (hdr->size > SC_RPC_MAX_MSG)
+		return -EINVAL;
+
+	dev_dbg(sc_ipc->dev, "RPC SVC %u FUNC %u SIZE %u\n", hdr->svc,
+		hdr->func, hdr->size);
+
+	for (i = 0; i < hdr->size; i++) {
+		sc_chan = &sc_ipc->chans[i % 4];
+		ret = mbox_send_message(sc_chan->ch, &data[i]);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+/*
+ * RPC command/response
+ */
+int sc_call_rpc(struct sc_ipc *sc_ipc, void *msg, bool no_resp)
+{
+	int ret;
+
+	if (WARN_ON(!sc_ipc || !msg))
+		return -EINVAL;
+
+	mutex_lock(&sc_ipc->lock);
+	reinit_completion(&sc_ipc->done);
+
+	sc_ipc->msg = msg;
+	sc_ipc->count = 0;
+	ret = sc_ipc_write(sc_ipc, msg);
+	if (ret < 0) {
+		dev_err(sc_ipc->dev, "RPC send msg failed: %d\n", ret);
+		goto out;
+	}
+
+	if (!no_resp) {
+		if (!wait_for_completion_timeout(&sc_ipc->done,
+						 MAX_RX_TIMEOUT)) {
+			dev_err(sc_ipc->dev, "RPC send msg timeout\n");
+			return -ETIMEDOUT;
+		}
+		ret = 0;
+	}
+out:
+	mutex_unlock(&sc_ipc->lock);
+
+	dev_dbg(sc_ipc->dev, "RPC SVC done\n");
+
+	return ret;
+}
+
+static int imx_sc_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct sc_ipc *sc_ipc;
+	struct sc_chan *sc_chan;
+	struct mbox_client *cl;
+	char *chan_name;
+	int ret;
+	int i;
+
+	sc_ipc = devm_kzalloc(dev, sizeof(*sc_ipc), GFP_KERNEL);
+	if (!sc_ipc)
+		return -ENOMEM;
+
+	for (i = 0; i < SCU_MU_CHAN_NUM; i++) {
+		if (i < 4)
+			chan_name = kasprintf(GFP_KERNEL, "tx%d", i);
+		else
+			chan_name = kasprintf(GFP_KERNEL, "rx%d", i - 4);
+
+		if (!chan_name)
+			return -ENOMEM;
+
+		sc_chan = &sc_ipc->chans[i];
+		cl = &sc_chan->cl;
+		cl->dev = dev;
+		cl->tx_block = false;
+		cl->knows_txdone = true;
+		cl->rx_callback = sc_rx_callback;
+
+		sc_chan->sc_ipc = sc_ipc;
+		sc_chan->idx = i % 4;
+		sc_chan->ch = mbox_request_channel_byname(cl, chan_name);
+		if (IS_ERR(sc_chan->ch)) {
+			ret = PTR_ERR(sc_chan->ch);
+			if (ret != -EPROBE_DEFER)
+				dev_err(dev, "Failed to request mbox chan %s ret %d\n",
+					chan_name, ret);
+			return ret;
+		}
+
+		dev_dbg(dev, "request mbox chan %s\n", chan_name);
+		/* chan_name is not used anymore by framework */
+		kfree(chan_name);
+	}
+
+	sc_ipc->dev = dev;
+	mutex_init(&sc_ipc->lock);
+	init_completion(&sc_ipc->done);
+
+	scu_ipc_handle = sc_ipc;
+
+	pr_info("NXP i.MX SCU Initialized\n");
+
+	return devm_of_platform_populate(dev);
+}
+
+static const struct of_device_id imx_sc_match[] = {
+	{ .compatible = "fsl,imx-scu", },
+	{ /* Sentinel */ }
+};
+
+static struct platform_driver imx_sc_driver = {
+	.driver = {
+		.name = "imx-scu",
+		.of_match_table = imx_sc_match,
+	},
+	.probe = imx_sc_probe,
+};
+builtin_platform_driver(imx_sc_driver);
+
+MODULE_AUTHOR("Dong Aisheng <aisheng.dong at nxp.com>");
+MODULE_DESCRIPTION("IMX SCU firmware protocol driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/soc/imx/scu/ipc.h b/include/soc/imx/scu/ipc.h
new file mode 100644
index 0000000..cc10d5a
--- /dev/null
+++ b/include/soc/imx/scu/ipc.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2018 NXP
+ *
+ * Header file for the IPC implementation.
+ */
+
+#ifndef _SC_IPC_H
+#define _SC_IPC_H
+
+#include <linux/device.h>
+#include <linux/types.h>
+
+#define SC_RPC_VERSION		1
+#define SC_RPC_MAX_MSG		8
+
+struct sc_ipc;
+
+enum sc_rpc_svc_e {
+	SC_RPC_SVC_UNKNOWN = 0,
+	SC_RPC_SVC_RETURN = 1,
+	SC_RPC_SVC_PM = 2,
+	SC_RPC_SVC_RM = 3,
+	SC_RPC_SVC_TIMER = 5,
+	SC_RPC_SVC_PAD = 6,
+	SC_RPC_SVC_MISC = 7,
+	SC_RPC_SVC_IRQ = 8,
+	SC_RPC_SVC_ABORT = 9
+};
+
+struct sc_rpc_msg {
+	uint8_t ver;
+	uint8_t size;
+	uint8_t svc;
+	uint8_t func;
+};
+
+/*
+ * This is an function to send an RPC message over an IPC channel.
+ * It is called by client-side SCFW API function shims.
+ *
+ * @param[in]     ipc         IPC handle
+ * @param[in,out] msg         handle to a message
+ * @param[in]     no_resp     response flag
+ *
+ * If no_resp is false then this function waits for a response
+ * and returns the result in msg.
+ */
+int sc_call_rpc(struct sc_ipc *ipc, void *msg, bool no_resp);
+
+/*
+ * This function gets the default ipc handle used by SCU
+ *
+ * @param[out]	ipc	sc ipc handle
+ *
+ * @return Returns an error code (0 = success, failed if < 0)
+ */
+int sc_ipc_get_handle(struct sc_ipc *ipc);
+#endif /* _SC_IPC_H */
diff --git a/include/soc/imx/scu/sci.h b/include/soc/imx/scu/sci.h
new file mode 100644
index 0000000..e0657d3
--- /dev/null
+++ b/include/soc/imx/scu/sci.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017~2018 NXP
+ *
+ * Header file containing the public System Controller Interface (SCI)
+ * definitions.
+ */
+
+#ifndef _SC_SCI_H
+#define _SC_SCI_H
+
+#include <soc/imx/scu/ipc.h>
+#include <soc/imx/scu/types.h>
+
+#endif /* _SC_SCI_H */
diff --git a/include/soc/imx/scu/types.h b/include/soc/imx/scu/types.h
new file mode 100644
index 0000000..e56265e
--- /dev/null
+++ b/include/soc/imx/scu/types.h
@@ -0,0 +1,636 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017~2018 NXP
+ *
+ * Header file containing types used across multiple service APIs.
+ */
+
+#ifndef _SC_TYPES_H
+#define _SC_TYPES_H
+
+/*
+ * This type is used to indicate error response for most functions.
+ */
+typedef enum sc_err_e {
+	SC_ERR_NONE = 0,	/* Success */
+	SC_ERR_VERSION = 1,	/* Incompatible API version */
+	SC_ERR_CONFIG = 2,	/* Configuration error */
+	SC_ERR_PARM = 3,	/* Bad parameter */
+	SC_ERR_NOACCESS = 4,	/* Permission error (no access) */
+	SC_ERR_LOCKED = 5,	/* Permission error (locked) */
+	SC_ERR_UNAVAILABLE = 6,	/* Unavailable (out of resources) */
+	SC_ERR_NOTFOUND = 7,	/* Not found */
+	SC_ERR_NOPOWER = 8,	/* No power */
+	SC_ERR_IPC = 9,		/* Generic IPC error */
+	SC_ERR_BUSY = 10,	/* Resource is currently busy/active */
+	SC_ERR_FAIL = 11,	/* General I/O failure */
+	SC_ERR_LAST
+} sc_err_t;
+
+/*
+ * This type is used to indicate a resource. Resources include peripherals
+ * and bus masters (but not memory regions). Note items from list should
+ * never be changed or removed (only added to at the end of the list).
+ */
+typedef enum sc_rsrc_e {
+	SC_R_A53 = 0,
+	SC_R_A53_0 = 1,
+	SC_R_A53_1 = 2,
+	SC_R_A53_2 = 3,
+	SC_R_A53_3 = 4,
+	SC_R_A72 = 5,
+	SC_R_A72_0 = 6,
+	SC_R_A72_1 = 7,
+	SC_R_A72_2 = 8,
+	SC_R_A72_3 = 9,
+	SC_R_CCI = 10,
+	SC_R_DB = 11,
+	SC_R_DRC_0 = 12,
+	SC_R_DRC_1 = 13,
+	SC_R_GIC_SMMU = 14,
+	SC_R_IRQSTR_M4_0 = 15,
+	SC_R_IRQSTR_M4_1 = 16,
+	SC_R_SMMU = 17,
+	SC_R_GIC = 18,
+	SC_R_DC_0_BLIT0 = 19,
+	SC_R_DC_0_BLIT1 = 20,
+	SC_R_DC_0_BLIT2 = 21,
+	SC_R_DC_0_BLIT_OUT = 22,
+	SC_R_DC_0_CAPTURE0 = 23,
+	SC_R_DC_0_CAPTURE1 = 24,
+	SC_R_DC_0_WARP = 25,
+	SC_R_DC_0_INTEGRAL0 = 26,
+	SC_R_DC_0_INTEGRAL1 = 27,
+	SC_R_DC_0_VIDEO0 = 28,
+	SC_R_DC_0_VIDEO1 = 29,
+	SC_R_DC_0_FRAC0 = 30,
+	SC_R_DC_0_FRAC1 = 31,
+	SC_R_DC_0 = 32,
+	SC_R_GPU_2_PID0 = 33,
+	SC_R_DC_0_PLL_0 = 34,
+	SC_R_DC_0_PLL_1 = 35,
+	SC_R_DC_1_BLIT0 = 36,
+	SC_R_DC_1_BLIT1 = 37,
+	SC_R_DC_1_BLIT2 = 38,
+	SC_R_DC_1_BLIT_OUT = 39,
+	SC_R_DC_1_CAPTURE0 = 40,
+	SC_R_DC_1_CAPTURE1 = 41,
+	SC_R_DC_1_WARP = 42,
+	SC_R_DC_1_INTEGRAL0 = 43,
+	SC_R_DC_1_INTEGRAL1 = 44,
+	SC_R_DC_1_VIDEO0 = 45,
+	SC_R_DC_1_VIDEO1 = 46,
+	SC_R_DC_1_FRAC0 = 47,
+	SC_R_DC_1_FRAC1 = 48,
+	SC_R_DC_1 = 49,
+	SC_R_GPU_3_PID0 = 50,
+	SC_R_DC_1_PLL_0 = 51,
+	SC_R_DC_1_PLL_1 = 52,
+	SC_R_SPI_0 = 53,
+	SC_R_SPI_1 = 54,
+	SC_R_SPI_2 = 55,
+	SC_R_SPI_3 = 56,
+	SC_R_UART_0 = 57,
+	SC_R_UART_1 = 58,
+	SC_R_UART_2 = 59,
+	SC_R_UART_3 = 60,
+	SC_R_UART_4 = 61,
+	SC_R_EMVSIM_0 = 62,
+	SC_R_EMVSIM_1 = 63,
+	SC_R_DMA_0_CH0 = 64,
+	SC_R_DMA_0_CH1 = 65,
+	SC_R_DMA_0_CH2 = 66,
+	SC_R_DMA_0_CH3 = 67,
+	SC_R_DMA_0_CH4 = 68,
+	SC_R_DMA_0_CH5 = 69,
+	SC_R_DMA_0_CH6 = 70,
+	SC_R_DMA_0_CH7 = 71,
+	SC_R_DMA_0_CH8 = 72,
+	SC_R_DMA_0_CH9 = 73,
+	SC_R_DMA_0_CH10 = 74,
+	SC_R_DMA_0_CH11 = 75,
+	SC_R_DMA_0_CH12 = 76,
+	SC_R_DMA_0_CH13 = 77,
+	SC_R_DMA_0_CH14 = 78,
+	SC_R_DMA_0_CH15 = 79,
+	SC_R_DMA_0_CH16 = 80,
+	SC_R_DMA_0_CH17 = 81,
+	SC_R_DMA_0_CH18 = 82,
+	SC_R_DMA_0_CH19 = 83,
+	SC_R_DMA_0_CH20 = 84,
+	SC_R_DMA_0_CH21 = 85,
+	SC_R_DMA_0_CH22 = 86,
+	SC_R_DMA_0_CH23 = 87,
+	SC_R_DMA_0_CH24 = 88,
+	SC_R_DMA_0_CH25 = 89,
+	SC_R_DMA_0_CH26 = 90,
+	SC_R_DMA_0_CH27 = 91,
+	SC_R_DMA_0_CH28 = 92,
+	SC_R_DMA_0_CH29 = 93,
+	SC_R_DMA_0_CH30 = 94,
+	SC_R_DMA_0_CH31 = 95,
+	SC_R_I2C_0 = 96,
+	SC_R_I2C_1 = 97,
+	SC_R_I2C_2 = 98,
+	SC_R_I2C_3 = 99,
+	SC_R_I2C_4 = 100,
+	SC_R_ADC_0 = 101,
+	SC_R_ADC_1 = 102,
+	SC_R_FTM_0 = 103,
+	SC_R_FTM_1 = 104,
+	SC_R_CAN_0 = 105,
+	SC_R_CAN_1 = 106,
+	SC_R_CAN_2 = 107,
+	SC_R_DMA_1_CH0 = 108,
+	SC_R_DMA_1_CH1 = 109,
+	SC_R_DMA_1_CH2 = 110,
+	SC_R_DMA_1_CH3 = 111,
+	SC_R_DMA_1_CH4 = 112,
+	SC_R_DMA_1_CH5 = 113,
+	SC_R_DMA_1_CH6 = 114,
+	SC_R_DMA_1_CH7 = 115,
+	SC_R_DMA_1_CH8 = 116,
+	SC_R_DMA_1_CH9 = 117,
+	SC_R_DMA_1_CH10 = 118,
+	SC_R_DMA_1_CH11 = 119,
+	SC_R_DMA_1_CH12 = 120,
+	SC_R_DMA_1_CH13 = 121,
+	SC_R_DMA_1_CH14 = 122,
+	SC_R_DMA_1_CH15 = 123,
+	SC_R_DMA_1_CH16 = 124,
+	SC_R_DMA_1_CH17 = 125,
+	SC_R_DMA_1_CH18 = 126,
+	SC_R_DMA_1_CH19 = 127,
+	SC_R_DMA_1_CH20 = 128,
+	SC_R_DMA_1_CH21 = 129,
+	SC_R_DMA_1_CH22 = 130,
+	SC_R_DMA_1_CH23 = 131,
+	SC_R_DMA_1_CH24 = 132,
+	SC_R_DMA_1_CH25 = 133,
+	SC_R_DMA_1_CH26 = 134,
+	SC_R_DMA_1_CH27 = 135,
+	SC_R_DMA_1_CH28 = 136,
+	SC_R_DMA_1_CH29 = 137,
+	SC_R_DMA_1_CH30 = 138,
+	SC_R_DMA_1_CH31 = 139,
+	SC_R_UNUSED1 = 140,
+	SC_R_UNUSED2 = 141,
+	SC_R_UNUSED3 = 142,
+	SC_R_UNUSED4 = 143,
+	SC_R_GPU_0_PID0 = 144,
+	SC_R_GPU_0_PID1 = 145,
+	SC_R_GPU_0_PID2 = 146,
+	SC_R_GPU_0_PID3 = 147,
+	SC_R_GPU_1_PID0 = 148,
+	SC_R_GPU_1_PID1 = 149,
+	SC_R_GPU_1_PID2 = 150,
+	SC_R_GPU_1_PID3 = 151,
+	SC_R_PCIE_A = 152,
+	SC_R_SERDES_0 = 153,
+	SC_R_MATCH_0 = 154,
+	SC_R_MATCH_1 = 155,
+	SC_R_MATCH_2 = 156,
+	SC_R_MATCH_3 = 157,
+	SC_R_MATCH_4 = 158,
+	SC_R_MATCH_5 = 159,
+	SC_R_MATCH_6 = 160,
+	SC_R_MATCH_7 = 161,
+	SC_R_MATCH_8 = 162,
+	SC_R_MATCH_9 = 163,
+	SC_R_MATCH_10 = 164,
+	SC_R_MATCH_11 = 165,
+	SC_R_MATCH_12 = 166,
+	SC_R_MATCH_13 = 167,
+	SC_R_MATCH_14 = 168,
+	SC_R_PCIE_B = 169,
+	SC_R_SATA_0 = 170,
+	SC_R_SERDES_1 = 171,
+	SC_R_HSIO_GPIO = 172,
+	SC_R_MATCH_15 = 173,
+	SC_R_MATCH_16 = 174,
+	SC_R_MATCH_17 = 175,
+	SC_R_MATCH_18 = 176,
+	SC_R_MATCH_19 = 177,
+	SC_R_MATCH_20 = 178,
+	SC_R_MATCH_21 = 179,
+	SC_R_MATCH_22 = 180,
+	SC_R_MATCH_23 = 181,
+	SC_R_MATCH_24 = 182,
+	SC_R_MATCH_25 = 183,
+	SC_R_MATCH_26 = 184,
+	SC_R_MATCH_27 = 185,
+	SC_R_MATCH_28 = 186,
+	SC_R_LCD_0 = 187,
+	SC_R_LCD_0_PWM_0 = 188,
+	SC_R_LCD_0_I2C_0 = 189,
+	SC_R_LCD_0_I2C_1 = 190,
+	SC_R_PWM_0 = 191,
+	SC_R_PWM_1 = 192,
+	SC_R_PWM_2 = 193,
+	SC_R_PWM_3 = 194,
+	SC_R_PWM_4 = 195,
+	SC_R_PWM_5 = 196,
+	SC_R_PWM_6 = 197,
+	SC_R_PWM_7 = 198,
+	SC_R_GPIO_0 = 199,
+	SC_R_GPIO_1 = 200,
+	SC_R_GPIO_2 = 201,
+	SC_R_GPIO_3 = 202,
+	SC_R_GPIO_4 = 203,
+	SC_R_GPIO_5 = 204,
+	SC_R_GPIO_6 = 205,
+	SC_R_GPIO_7 = 206,
+	SC_R_GPT_0 = 207,
+	SC_R_GPT_1 = 208,
+	SC_R_GPT_2 = 209,
+	SC_R_GPT_3 = 210,
+	SC_R_GPT_4 = 211,
+	SC_R_KPP = 212,
+	SC_R_MU_0A = 213,
+	SC_R_MU_1A = 214,
+	SC_R_MU_2A = 215,
+	SC_R_MU_3A = 216,
+	SC_R_MU_4A = 217,
+	SC_R_MU_5A = 218,
+	SC_R_MU_6A = 219,
+	SC_R_MU_7A = 220,
+	SC_R_MU_8A = 221,
+	SC_R_MU_9A = 222,
+	SC_R_MU_10A = 223,
+	SC_R_MU_11A = 224,
+	SC_R_MU_12A = 225,
+	SC_R_MU_13A = 226,
+	SC_R_MU_5B = 227,
+	SC_R_MU_6B = 228,
+	SC_R_MU_7B = 229,
+	SC_R_MU_8B = 230,
+	SC_R_MU_9B = 231,
+	SC_R_MU_10B = 232,
+	SC_R_MU_11B = 233,
+	SC_R_MU_12B = 234,
+	SC_R_MU_13B = 235,
+	SC_R_ROM_0 = 236,
+	SC_R_FSPI_0 = 237,
+	SC_R_FSPI_1 = 238,
+	SC_R_IEE = 239,
+	SC_R_IEE_R0 = 240,
+	SC_R_IEE_R1 = 241,
+	SC_R_IEE_R2 = 242,
+	SC_R_IEE_R3 = 243,
+	SC_R_IEE_R4 = 244,
+	SC_R_IEE_R5 = 245,
+	SC_R_IEE_R6 = 246,
+	SC_R_IEE_R7 = 247,
+	SC_R_SDHC_0 = 248,
+	SC_R_SDHC_1 = 249,
+	SC_R_SDHC_2 = 250,
+	SC_R_ENET_0 = 251,
+	SC_R_ENET_1 = 252,
+	SC_R_MLB_0 = 253,
+	SC_R_DMA_2_CH0 = 254,
+	SC_R_DMA_2_CH1 = 255,
+	SC_R_DMA_2_CH2 = 256,
+	SC_R_DMA_2_CH3 = 257,
+	SC_R_DMA_2_CH4 = 258,
+	SC_R_USB_0 = 259,
+	SC_R_USB_1 = 260,
+	SC_R_USB_0_PHY = 261,
+	SC_R_USB_2 = 262,
+	SC_R_USB_2_PHY = 263,
+	SC_R_DTCP = 264,
+	SC_R_NAND = 265,
+	SC_R_LVDS_0 = 266,
+	SC_R_LVDS_0_PWM_0 = 267,
+	SC_R_LVDS_0_I2C_0 = 268,
+	SC_R_LVDS_0_I2C_1 = 269,
+	SC_R_LVDS_1 = 270,
+	SC_R_LVDS_1_PWM_0 = 271,
+	SC_R_LVDS_1_I2C_0 = 272,
+	SC_R_LVDS_1_I2C_1 = 273,
+	SC_R_LVDS_2 = 274,
+	SC_R_LVDS_2_PWM_0 = 275,
+	SC_R_LVDS_2_I2C_0 = 276,
+	SC_R_LVDS_2_I2C_1 = 277,
+	SC_R_M4_0_PID0 = 278,
+	SC_R_M4_0_PID1 = 279,
+	SC_R_M4_0_PID2 = 280,
+	SC_R_M4_0_PID3 = 281,
+	SC_R_M4_0_PID4 = 282,
+	SC_R_M4_0_RGPIO = 283,
+	SC_R_M4_0_SEMA42 = 284,
+	SC_R_M4_0_TPM = 285,
+	SC_R_M4_0_PIT = 286,
+	SC_R_M4_0_UART = 287,
+	SC_R_M4_0_I2C = 288,
+	SC_R_M4_0_INTMUX = 289,
+	SC_R_M4_0_SIM = 290,
+	SC_R_M4_0_WDOG = 291,
+	SC_R_M4_0_MU_0B = 292,
+	SC_R_M4_0_MU_0A0 = 293,
+	SC_R_M4_0_MU_0A1 = 294,
+	SC_R_M4_0_MU_0A2 = 295,
+	SC_R_M4_0_MU_0A3 = 296,
+	SC_R_M4_0_MU_1A = 297,
+	SC_R_M4_1_PID0 = 298,
+	SC_R_M4_1_PID1 = 299,
+	SC_R_M4_1_PID2 = 300,
+	SC_R_M4_1_PID3 = 301,
+	SC_R_M4_1_PID4 = 302,
+	SC_R_M4_1_RGPIO = 303,
+	SC_R_M4_1_SEMA42 = 304,
+	SC_R_M4_1_TPM = 305,
+	SC_R_M4_1_PIT = 306,
+	SC_R_M4_1_UART = 307,
+	SC_R_M4_1_I2C = 308,
+	SC_R_M4_1_INTMUX = 309,
+	SC_R_M4_1_SIM = 310,
+	SC_R_M4_1_WDOG = 311,
+	SC_R_M4_1_MU_0B = 312,
+	SC_R_M4_1_MU_0A0 = 313,
+	SC_R_M4_1_MU_0A1 = 314,
+	SC_R_M4_1_MU_0A2 = 315,
+	SC_R_M4_1_MU_0A3 = 316,
+	SC_R_M4_1_MU_1A = 317,
+	SC_R_SAI_0 = 318,
+	SC_R_SAI_1 = 319,
+	SC_R_SAI_2 = 320,
+	SC_R_IRQSTR_SCU2 = 321,
+	SC_R_IRQSTR_DSP = 322,
+	SC_R_UNUSED5 = 323,
+	SC_R_UNUSED6 = 324,
+	SC_R_AUDIO_PLL_0 = 325,
+	SC_R_PI_0 = 326,
+	SC_R_PI_0_PWM_0 = 327,
+	SC_R_PI_0_PWM_1 = 328,
+	SC_R_PI_0_I2C_0 = 329,
+	SC_R_PI_0_PLL = 330,
+	SC_R_PI_1 = 331,
+	SC_R_PI_1_PWM_0 = 332,
+	SC_R_PI_1_PWM_1 = 333,
+	SC_R_PI_1_I2C_0 = 334,
+	SC_R_PI_1_PLL = 335,
+	SC_R_SC_PID0 = 336,
+	SC_R_SC_PID1 = 337,
+	SC_R_SC_PID2 = 338,
+	SC_R_SC_PID3 = 339,
+	SC_R_SC_PID4 = 340,
+	SC_R_SC_SEMA42 = 341,
+	SC_R_SC_TPM = 342,
+	SC_R_SC_PIT = 343,
+	SC_R_SC_UART = 344,
+	SC_R_SC_I2C = 345,
+	SC_R_SC_MU_0B = 346,
+	SC_R_SC_MU_0A0 = 347,
+	SC_R_SC_MU_0A1 = 348,
+	SC_R_SC_MU_0A2 = 349,
+	SC_R_SC_MU_0A3 = 350,
+	SC_R_SC_MU_1A = 351,
+	SC_R_SYSCNT_RD = 352,
+	SC_R_SYSCNT_CMP = 353,
+	SC_R_DEBUG = 354,
+	SC_R_SYSTEM = 355,
+	SC_R_SNVS = 356,
+	SC_R_OTP = 357,
+	SC_R_VPU_PID0 = 358,
+	SC_R_VPU_PID1 = 359,
+	SC_R_VPU_PID2 = 360,
+	SC_R_VPU_PID3 = 361,
+	SC_R_VPU_PID4 = 362,
+	SC_R_VPU_PID5 = 363,
+	SC_R_VPU_PID6 = 364,
+	SC_R_VPU_PID7 = 365,
+	SC_R_VPU_UART = 366,
+	SC_R_VPUCORE = 367,
+	SC_R_VPUCORE_0 = 368,
+	SC_R_VPUCORE_1 = 369,
+	SC_R_VPUCORE_2 = 370,
+	SC_R_VPUCORE_3 = 371,
+	SC_R_DMA_4_CH0 = 372,
+	SC_R_DMA_4_CH1 = 373,
+	SC_R_DMA_4_CH2 = 374,
+	SC_R_DMA_4_CH3 = 375,
+	SC_R_DMA_4_CH4 = 376,
+	SC_R_ISI_CH0 = 377,
+	SC_R_ISI_CH1 = 378,
+	SC_R_ISI_CH2 = 379,
+	SC_R_ISI_CH3 = 380,
+	SC_R_ISI_CH4 = 381,
+	SC_R_ISI_CH5 = 382,
+	SC_R_ISI_CH6 = 383,
+	SC_R_ISI_CH7 = 384,
+	SC_R_MJPEG_DEC_S0 = 385,
+	SC_R_MJPEG_DEC_S1 = 386,
+	SC_R_MJPEG_DEC_S2 = 387,
+	SC_R_MJPEG_DEC_S3 = 388,
+	SC_R_MJPEG_ENC_S0 = 389,
+	SC_R_MJPEG_ENC_S1 = 390,
+	SC_R_MJPEG_ENC_S2 = 391,
+	SC_R_MJPEG_ENC_S3 = 392,
+	SC_R_MIPI_0 = 393,
+	SC_R_MIPI_0_PWM_0 = 394,
+	SC_R_MIPI_0_I2C_0 = 395,
+	SC_R_MIPI_0_I2C_1 = 396,
+	SC_R_MIPI_1 = 397,
+	SC_R_MIPI_1_PWM_0 = 398,
+	SC_R_MIPI_1_I2C_0 = 399,
+	SC_R_MIPI_1_I2C_1 = 400,
+	SC_R_CSI_0 = 401,
+	SC_R_CSI_0_PWM_0 = 402,
+	SC_R_CSI_0_I2C_0 = 403,
+	SC_R_CSI_1 = 404,
+	SC_R_CSI_1_PWM_0 = 405,
+	SC_R_CSI_1_I2C_0 = 406,
+	SC_R_HDMI = 407,
+	SC_R_HDMI_I2S = 408,
+	SC_R_HDMI_I2C_0 = 409,
+	SC_R_HDMI_PLL_0 = 410,
+	SC_R_HDMI_RX = 411,
+	SC_R_HDMI_RX_BYPASS = 412,
+	SC_R_HDMI_RX_I2C_0 = 413,
+	SC_R_ASRC_0 = 414,
+	SC_R_ESAI_0 = 415,
+	SC_R_SPDIF_0 = 416,
+	SC_R_SPDIF_1 = 417,
+	SC_R_SAI_3 = 418,
+	SC_R_SAI_4 = 419,
+	SC_R_SAI_5 = 420,
+	SC_R_GPT_5 = 421,
+	SC_R_GPT_6 = 422,
+	SC_R_GPT_7 = 423,
+	SC_R_GPT_8 = 424,
+	SC_R_GPT_9 = 425,
+	SC_R_GPT_10 = 426,
+	SC_R_DMA_2_CH5 = 427,
+	SC_R_DMA_2_CH6 = 428,
+	SC_R_DMA_2_CH7 = 429,
+	SC_R_DMA_2_CH8 = 430,
+	SC_R_DMA_2_CH9 = 431,
+	SC_R_DMA_2_CH10 = 432,
+	SC_R_DMA_2_CH11 = 433,
+	SC_R_DMA_2_CH12 = 434,
+	SC_R_DMA_2_CH13 = 435,
+	SC_R_DMA_2_CH14 = 436,
+	SC_R_DMA_2_CH15 = 437,
+	SC_R_DMA_2_CH16 = 438,
+	SC_R_DMA_2_CH17 = 439,
+	SC_R_DMA_2_CH18 = 440,
+	SC_R_DMA_2_CH19 = 441,
+	SC_R_DMA_2_CH20 = 442,
+	SC_R_DMA_2_CH21 = 443,
+	SC_R_DMA_2_CH22 = 444,
+	SC_R_DMA_2_CH23 = 445,
+	SC_R_DMA_2_CH24 = 446,
+	SC_R_DMA_2_CH25 = 447,
+	SC_R_DMA_2_CH26 = 448,
+	SC_R_DMA_2_CH27 = 449,
+	SC_R_DMA_2_CH28 = 450,
+	SC_R_DMA_2_CH29 = 451,
+	SC_R_DMA_2_CH30 = 452,
+	SC_R_DMA_2_CH31 = 453,
+	SC_R_ASRC_1 = 454,
+	SC_R_ESAI_1 = 455,
+	SC_R_SAI_6 = 456,
+	SC_R_SAI_7 = 457,
+	SC_R_AMIX = 458,
+	SC_R_MQS_0 = 459,
+	SC_R_DMA_3_CH0 = 460,
+	SC_R_DMA_3_CH1 = 461,
+	SC_R_DMA_3_CH2 = 462,
+	SC_R_DMA_3_CH3 = 463,
+	SC_R_DMA_3_CH4 = 464,
+	SC_R_DMA_3_CH5 = 465,
+	SC_R_DMA_3_CH6 = 466,
+	SC_R_DMA_3_CH7 = 467,
+	SC_R_DMA_3_CH8 = 468,
+	SC_R_DMA_3_CH9 = 469,
+	SC_R_DMA_3_CH10 = 470,
+	SC_R_DMA_3_CH11 = 471,
+	SC_R_DMA_3_CH12 = 472,
+	SC_R_DMA_3_CH13 = 473,
+	SC_R_DMA_3_CH14 = 474,
+	SC_R_DMA_3_CH15 = 475,
+	SC_R_DMA_3_CH16 = 476,
+	SC_R_DMA_3_CH17 = 477,
+	SC_R_DMA_3_CH18 = 478,
+	SC_R_DMA_3_CH19 = 479,
+	SC_R_DMA_3_CH20 = 480,
+	SC_R_DMA_3_CH21 = 481,
+	SC_R_DMA_3_CH22 = 482,
+	SC_R_DMA_3_CH23 = 483,
+	SC_R_DMA_3_CH24 = 484,
+	SC_R_DMA_3_CH25 = 485,
+	SC_R_DMA_3_CH26 = 486,
+	SC_R_DMA_3_CH27 = 487,
+	SC_R_DMA_3_CH28 = 488,
+	SC_R_DMA_3_CH29 = 489,
+	SC_R_DMA_3_CH30 = 490,
+	SC_R_DMA_3_CH31 = 491,
+	SC_R_AUDIO_PLL_1 = 492,
+	SC_R_AUDIO_CLK_0 = 493,
+	SC_R_AUDIO_CLK_1 = 494,
+	SC_R_MCLK_OUT_0 = 495,
+	SC_R_MCLK_OUT_1 = 496,
+	SC_R_PMIC_0 = 497,
+	SC_R_PMIC_1 = 498,
+	SC_R_SECO = 499,
+	SC_R_CAAM_JR1 = 500,
+	SC_R_CAAM_JR2 = 501,
+	SC_R_CAAM_JR3 = 502,
+	SC_R_SECO_MU_2 = 503,
+	SC_R_SECO_MU_3 = 504,
+	SC_R_SECO_MU_4 = 505,
+	SC_R_HDMI_RX_PWM_0 = 506,
+	SC_R_A35 = 507,
+	SC_R_A35_0 = 508,
+	SC_R_A35_1 = 509,
+	SC_R_A35_2 = 510,
+	SC_R_A35_3 = 511,
+	SC_R_DSP = 512,
+	SC_R_DSP_RAM = 513,
+	SC_R_CAAM_JR1_OUT = 514,
+	SC_R_CAAM_JR2_OUT = 515,
+	SC_R_CAAM_JR3_OUT = 516,
+	SC_R_VPU_DEC_0 = 517,
+	SC_R_VPU_ENC_0 = 518,
+	SC_R_CAAM_JR0 = 519,
+	SC_R_CAAM_JR0_OUT = 520,
+	SC_R_PMIC_2 = 521,
+	SC_R_DBLOGIC = 522,
+	SC_R_HDMI_PLL_1 = 523,
+	SC_R_BOARD_R0 = 524,
+	SC_R_BOARD_R1 = 525,
+	SC_R_BOARD_R2 = 526,
+	SC_R_BOARD_R3 = 527,
+	SC_R_BOARD_R4 = 528,
+	SC_R_BOARD_R5 = 529,
+	SC_R_BOARD_R6 = 530,
+	SC_R_BOARD_R7 = 531,
+	SC_R_MJPEG_DEC_MP = 532,
+	SC_R_MJPEG_ENC_MP = 533,
+	SC_R_VPU_TS_0 = 534,
+	SC_R_VPU_MU_0 = 535,
+	SC_R_VPU_MU_1 = 536,
+	SC_R_VPU_MU_2 = 537,
+	SC_R_VPU_MU_3 = 538,
+	SC_R_VPU_ENC_1 = 539,
+	SC_R_VPU = 540,
+	SC_R_LAST
+} sc_rsrc_t;
+
+/* NOTE - please add by replacing some of the UNUSED from above! */
+
+/*
+ * This type is used to indicate a control.
+ */
+typedef enum sc_ctrl_e {
+	SC_C_TEMP = 0,
+	SC_C_TEMP_HI = 1,
+	SC_C_TEMP_LOW = 2,
+	SC_C_PXL_LINK_MST1_ADDR = 3,
+	SC_C_PXL_LINK_MST2_ADDR = 4,
+	SC_C_PXL_LINK_MST_ENB = 5,
+	SC_C_PXL_LINK_MST1_ENB = 6,
+	SC_C_PXL_LINK_MST2_ENB = 7,
+	SC_C_PXL_LINK_SLV1_ADDR = 8,
+	SC_C_PXL_LINK_SLV2_ADDR = 9,
+	SC_C_PXL_LINK_MST_VLD = 10,
+	SC_C_PXL_LINK_MST1_VLD = 11,
+	SC_C_PXL_LINK_MST2_VLD = 12,
+	SC_C_SINGLE_MODE = 13,
+	SC_C_ID = 14,
+	SC_C_PXL_CLK_POLARITY = 15,
+	SC_C_LINESTATE = 16,
+	SC_C_PCIE_G_RST = 17,
+	SC_C_PCIE_BUTTON_RST = 18,
+	SC_C_PCIE_PERST = 19,
+	SC_C_PHY_RESET = 20,
+	SC_C_PXL_LINK_RATE_CORRECTION = 21,
+	SC_C_PANIC = 22,
+	SC_C_PRIORITY_GROUP = 23,
+	SC_C_TXCLK = 24,
+	SC_C_CLKDIV = 25,
+	SC_C_DISABLE_50 = 26,
+	SC_C_DISABLE_125 = 27,
+	SC_C_SEL_125 = 28,
+	SC_C_MODE = 29,
+	SC_C_SYNC_CTRL0 = 30,
+	SC_C_KACHUNK_CNT = 31,
+	SC_C_KACHUNK_SEL = 32,
+	SC_C_SYNC_CTRL1 = 33,
+	SC_C_DPI_RESET = 34,
+	SC_C_MIPI_RESET = 35,
+	SC_C_DUAL_MODE = 36,
+	SC_C_VOLTAGE = 37,
+	SC_C_PXL_LINK_SEL = 38,
+	SC_C_OFS_SEL = 39,
+	SC_C_OFS_AUDIO = 40,
+	SC_C_OFS_PERIPH = 41,
+	SC_C_OFS_IRQ = 42,
+	SC_C_RST0 = 43,
+	SC_C_RST1 = 44,
+	SC_C_SEL0 = 45,
+	SC_C_LAST
+} sc_ctrl_t;
+
+#endif /* _SC_TYPES_H */
-- 
2.7.4




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