NXP/FSL SoC driver updates for v5.3

DPAA2 Console driver
 - Add driver to export two char devices to dump logs for MC and
   AIOP
 
 DPAA2 DPIO driver
 - Add support for memory backed QBMan portals
 - Increase the timeout period to prevent false error
 - Add APIs to retrieve QBMan portal probing status
 
 DPAA Qman driver
 - Only make liodn fixup on powerpc SoCs with PAMU iommu
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Merge tag 'soc-fsl-next-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into arm/drivers

NXP/FSL SoC driver updates for v5.3

DPAA2 Console driver
- Add driver to export two char devices to dump logs for MC and
  AIOP

DPAA2 DPIO driver
- Add support for memory backed QBMan portals
- Increase the timeout period to prevent false error
- Add APIs to retrieve QBMan portal probing status

DPAA Qman driver
- Only make liodn fixup on powerpc SoCs with PAMU iommu

* tag 'soc-fsl-next-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux:
  soc: fsl: qbman_portals: add APIs to retrieve the probing status
  soc: fsl: qman: fixup liodns only on ppc targets
  soc: fsl: dpio: Add support for memory backed QBMan portals
  bus: mc-bus: Add support for mapping shareable portals
  soc: fsl: dpio: Increase timeout for QBMan Management Commands
  soc: fsl: add DPAA2 console support
  Documentation: DT: Add entry for DPAA2 console
  soc: fsl: guts: Add definition for LX2160A

Signed-off-by: Olof Johansson <[email protected]>

drivers/bus/fsl-mc/dprc.c

@@ -443,11 +443,31 @@ int dprc_get_obj_region(struct fsl_mc_io *mc_io,
 	struct fsl_mc_command cmd = { 0 };
 	struct dprc_cmd_get_obj_region *cmd_params;
 	struct dprc_rsp_get_obj_region *rsp_params;
+	u16 major_ver, minor_ver;
 	int err;
 
 	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_REG,
-					  cmd_flags, token);
+	err = dprc_get_api_version(mc_io, 0,
+				     &major_ver,
+				     &minor_ver);
+	if (err)
+		return err;
+
+	/**
+	 * MC API version 6.3 introduced a new field to the region
+	 * descriptor: base_address. If the older API is in use then the base
+	 * address is set to zero to indicate it needs to be obtained elsewhere
+	 * (typically the device tree).
+	 */
+	if (major_ver > 6 || (major_ver == 6 && minor_ver >= 3))
+		cmd.header =
+			mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_REG_V2,
+					     cmd_flags, token);
+	else
+		cmd.header =
+			mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_REG,
+					     cmd_flags, token);
+
 	cmd_params = (struct dprc_cmd_get_obj_region *)cmd.params;
 	cmd_params->obj_id = cpu_to_le32(obj_id);
 	cmd_params->region_index = region_index;
@@ -461,8 +481,12 @@ int dprc_get_obj_region(struct fsl_mc_io *mc_io,
 
 	/* retrieve response parameters */
 	rsp_params = (struct dprc_rsp_get_obj_region *)cmd.params;
-	region_desc->base_offset = le64_to_cpu(rsp_params->base_addr);
+	region_desc->base_offset = le64_to_cpu(rsp_params->base_offset);
 	region_desc->size = le32_to_cpu(rsp_params->size);
+	if (major_ver > 6 || (major_ver == 6 && minor_ver >= 3))
+		region_desc->base_address = le64_to_cpu(rsp_params->base_addr);
+	else
+		region_desc->base_address = 0;
 
 	return 0;
 }

drivers/bus/fsl-mc/fsl-mc-bus.c

@@ -487,10 +487,19 @@ static int fsl_mc_device_get_mmio_regions(struct fsl_mc_device *mc_dev,
 				"dprc_get_obj_region() failed: %d\n", error);
 			goto error_cleanup_regions;
 		}
-
-		error = translate_mc_addr(mc_dev, mc_region_type,
+		/*
+		 * Older MC only returned region offset and no base address
+		 * If base address is in the region_desc use it otherwise
+		 * revert to old mechanism
+		 */
+		if (region_desc.base_address)
+			regions[i].start = region_desc.base_address +
+						region_desc.base_offset;
+		else
+			error = translate_mc_addr(mc_dev, mc_region_type,
 					  region_desc.base_offset,
 					  &regions[i].start);
+
 		if (error < 0) {
 			dev_err(parent_dev,
 				"Invalid MC offset: %#x (for %s.%d\'s region %d)\n",
@@ -504,6 +513,8 @@ static int fsl_mc_device_get_mmio_regions(struct fsl_mc_device *mc_dev,
 		regions[i].flags = IORESOURCE_IO;
 		if (region_desc.flags & DPRC_REGION_CACHEABLE)
 			regions[i].flags |= IORESOURCE_CACHEABLE;
+		if (region_desc.flags & DPRC_REGION_SHAREABLE)
+			regions[i].flags |= IORESOURCE_MEM;
 	}
 
 	mc_dev->regions = regions;

drivers/bus/fsl-mc/fsl-mc-private.h

@@ -79,9 +79,11 @@ int dpmcp_reset(struct fsl_mc_io *mc_io,
 
 /* DPRC command versioning */
 #define DPRC_CMD_BASE_VERSION			1
+#define DPRC_CMD_2ND_VERSION			2
 #define DPRC_CMD_ID_OFFSET			4
 
 #define DPRC_CMD(id)	(((id) << DPRC_CMD_ID_OFFSET) | DPRC_CMD_BASE_VERSION)
+#define DPRC_CMD_V2(id)	(((id) << DPRC_CMD_ID_OFFSET) | DPRC_CMD_2ND_VERSION)
 
 /* DPRC command IDs */
 #define DPRC_CMDID_CLOSE                        DPRC_CMD(0x800)
@@ -100,6 +102,7 @@ int dpmcp_reset(struct fsl_mc_io *mc_io,
 #define DPRC_CMDID_GET_OBJ_COUNT                DPRC_CMD(0x159)
 #define DPRC_CMDID_GET_OBJ                      DPRC_CMD(0x15A)
 #define DPRC_CMDID_GET_OBJ_REG                  DPRC_CMD(0x15E)
+#define DPRC_CMDID_GET_OBJ_REG_V2               DPRC_CMD_V2(0x15E)
 #define DPRC_CMDID_SET_OBJ_IRQ                  DPRC_CMD(0x15F)
 
 struct dprc_cmd_open {
@@ -199,9 +202,16 @@ struct dprc_rsp_get_obj_region {
 	/* response word 0 */
 	__le64 pad;
 	/* response word 1 */
-	__le64 base_addr;
+	__le64 base_offset;
 	/* response word 2 */
 	__le32 size;
+	__le32 pad2;
+	/* response word 3 */
+	__le32 flags;
+	__le32 pad3;
+	/* response word 4 */
+	/* base_addr may be zero if older MC firmware is used */
+	__le64 base_addr;
 };
 
 struct dprc_cmd_set_obj_irq {
@@ -334,6 +344,7 @@ int dprc_set_obj_irq(struct fsl_mc_io *mc_io,
 /* Region flags */
 /* Cacheable - Indicates that region should be mapped as cacheable */
 #define DPRC_REGION_CACHEABLE	0x00000001
+#define DPRC_REGION_SHAREABLE	0x00000002
 
 /**
  * enum dprc_region_type - Region type
@@ -342,7 +353,8 @@ int dprc_set_obj_irq(struct fsl_mc_io *mc_io,
  */
 enum dprc_region_type {
 	DPRC_REGION_TYPE_MC_PORTAL,
-	DPRC_REGION_TYPE_QBMAN_PORTAL
+	DPRC_REGION_TYPE_QBMAN_PORTAL,
+	DPRC_REGION_TYPE_QBMAN_MEM_BACKED_PORTAL
 };
 
 /**
@@ -360,6 +372,7 @@ struct dprc_region_desc {
 	u32 size;
 	u32 flags;
 	enum dprc_region_type type;
+	u64 base_address;
 };
 
 int dprc_get_obj_region(struct fsl_mc_io *mc_io,