Merge tag 'soc_fsl-6.12-2' of https://github.com/chleroy/linux into soc/drivers

- A series from Hervé Codina that bring support for the newer version
of QMC (QUICC Multi-channel Controller) and TSA (Time Slots Assigner)
found on MPC 83xx micro-controllers.

- Misc changes for qbman freescale drivers for removing a redundant
warning and using iommu_paging_domain_alloc()

* tag 'soc_fsl-6.12-2' of https://github.com/chleroy/linux: (38 commits)
  soc: fsl: qbman: Remove redundant warnings
  soc: fsl: qbman: Use iommu_paging_domain_alloc()
  MAINTAINERS: Add QE files related to the Freescale QMC controller
  soc: fsl: cpm1: qmc: Handle QUICC Engine (QE) soft-qmc firmware
  soc: fsl: cpm1: qmc: Add support for QUICC Engine (QE) implementation
  soc: fsl: qe: Add missing PUSHSCHED command
  soc: fsl: qe: Add resource-managed muram allocators
  soc: fsl: cpm1: qmc: Introduce qmc_version
  soc: fsl: cpm1: qmc: Rename SCC_GSMRL_MODE_QMC
  soc: fsl: cpm1: qmc: Handle RPACK initialization
  soc: fsl: cpm1: qmc: Rename qmc_chan_command()
  soc: fsl: cpm1: qmc: Introduce qmc_{init,exit}_xcc() and their CPM1 version
  soc: fsl: cpm1: qmc: Introduce qmc_init_resource() and its CPM1 version
  soc: fsl: cpm1: qmc: Re-order probe() operations
  soc: fsl: cpm1: qmc: Introduce qmc_data structure
  dt-bindings: soc: fsl: cpm_qe: Add QUICC Engine (QE) QMC controller
  soc: fsl: cpm1: qmc: Add missing spinlock comment
  soc: fsl: cpm1: qmc: Fix 'transmiter' typo
  soc: fsl: cpm1: qmc: Remove unneeded parenthesis
  soc: fsl: cpm1: qmc: Fix blank line and spaces
  ...

Link: https://lore.kernel.org/r/326d9a7d-7674-4c28-aa40-dd2c190244dd@csgroup.eu
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

12 files changed, 1552 insertions, 328 deletions

diff --git a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-tsa.yaml b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-tsa.yaml
new file mode 100644
index 000000000000..3b50e0a003ca
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-tsa.yaml
@@ -0,0 +1,210 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/fsl/cpm_qe/fsl,qe-tsa.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PowerQUICC QE Time-slot assigner (TSA) controller
+
+maintainers:
+  - Herve Codina <herve.codina@bootlin.com>
+
+description:
+  The TSA is the time-slot assigner that can be found on some PowerQUICC SoC.
+  Its purpose is to route some TDM time-slots to other internal serial
+  controllers.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - fsl,mpc8321-tsa
+      - const: fsl,qe-tsa
+
+  reg:
+    items:
+      - description: SI (Serial Interface) register base
+      - description: SI RAM base
+
+  reg-names:
+    items:
+      - const: si_regs
+      - const: si_ram
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+patternProperties:
+  '^tdm@[0-3]$':
+    description:
+      The TDM managed by this controller
+    type: object
+
+    additionalProperties: false
+
+    properties:
+      reg:
+        minimum: 0
+        maximum: 3
+        description:
+          The TDM number for this TDM, 0 for TDMa, 1 for TDMb, 2 for TDMc and 3
+          for TDMd.
+
+      fsl,common-rxtx-pins:
+        $ref: /schemas/types.yaml#/definitions/flag
+        description:
+          The hardware can use four dedicated pins for Tx clock, Tx sync, Rx
+          clock and Rx sync or use only two pins, Tx/Rx clock and Tx/Rx sync.
+          Without the 'fsl,common-rxtx-pins' property, the four pins are used.
+          With the 'fsl,common-rxtx-pins' property, two pins are used.
+
+      clocks:
+        minItems: 2
+        items:
+          - description: Receive sync clock
+          - description: Receive data clock
+          - description: Transmit sync clock
+          - description: Transmit data clock
+
+      clock-names:
+        minItems: 2
+        items:
+          - const: rsync
+          - const: rclk
+          - const: tsync
+          - const: tclk
+
+      fsl,rx-frame-sync-delay-bits:
+        enum: [0, 1, 2, 3]
+        default: 0
+        description: |
+          Receive frame sync delay in number of bits.
+          Indicates the delay between the Rx sync and the first bit of the Rx
+          frame.
+
+      fsl,tx-frame-sync-delay-bits:
+        enum: [0, 1, 2, 3]
+        default: 0
+        description: |
+          Transmit frame sync delay in number of bits.
+          Indicates the delay between the Tx sync and the first bit of the Tx
+          frame.
+
+      fsl,clock-falling-edge:
+        $ref: /schemas/types.yaml#/definitions/flag
+        description:
+          Data is sent on falling edge of the clock (and received on the rising
+          edge). If not present, data is sent on the rising edge (and received
+          on the falling edge).
+
+      fsl,fsync-rising-edge:
+        $ref: /schemas/types.yaml#/definitions/flag
+        description:
+          Frame sync pulses are sampled with the rising edge of the channel
+          clock. If not present, pulses are sampled with the falling edge.
+
+      fsl,fsync-active-low:
+        $ref: /schemas/types.yaml#/definitions/flag
+        description:
+          Frame sync signals are active on low logic level.
+          If not present, sync signals are active on high level.
+
+      fsl,double-speed-clock:
+        $ref: /schemas/types.yaml#/definitions/flag
+        description:
+          The channel clock is twice the data rate.
+
+    patternProperties:
+      '^fsl,[rt]x-ts-routes$':
+        $ref: /schemas/types.yaml#/definitions/uint32-matrix
+        description: |
+          A list of tuple that indicates the Tx or Rx time-slots routes.
+        items:
+          items:
+            - description:
+                The number of time-slots
+              minimum: 1
+              maximum: 64
+            - description: |
+                The source (Tx) or destination (Rx) serial interface
+                (dt-bindings/soc/qe-fsl,tsa.h defines these values)
+                 - 0: No destination
+                 - 1: UCC1
+                 - 2: UCC2
+                 - 3: UCC3
+                 - 4: UCC4
+                 - 5: UCC5
+              enum: [0, 1, 2, 3, 4, 5]
+        minItems: 1
+        maxItems: 64
+
+    allOf:
+      # If fsl,common-rxtx-pins is present, only 2 clocks are needed.
+      # Else, the 4 clocks must be present.
+      - if:
+          required:
+            - fsl,common-rxtx-pins
+        then:
+          properties:
+            clocks:
+              maxItems: 2
+            clock-names:
+              maxItems: 2
+        else:
+          properties:
+            clocks:
+              minItems: 4
+            clock-names:
+              minItems: 4
+
+    required:
+      - reg
+      - clocks
+      - clock-names
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - '#address-cells'
+  - '#size-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/soc/qe-fsl,tsa.h>
+
+    tsa@ae0 {
+        compatible = "fsl,mpc8321-tsa", "fsl,qe-tsa";
+        reg = <0xae0 0x10>,
+              <0xc00 0x200>;
+        reg-names = "si_regs", "si_ram";
+
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        tdm@0 {
+            /* TDMa */
+            reg = <0>;
+
+            clocks = <&clk_l1rsynca>, <&clk_l1rclka>;
+            clock-names = "rsync", "rclk";
+
+            fsl,common-rxtx-pins;
+            fsl,fsync-rising-edge;
+
+            fsl,tx-ts-routes = <2 0>,             /* TS 0..1 */
+                           <24 FSL_QE_TSA_UCC4>, /* TS 2..25 */
+                           <1 0>,                 /* TS 26 */
+                           <5 FSL_QE_TSA_UCC3>;  /* TS 27..31 */
+
+            fsl,rx-ts-routes = <2 0>,             /* TS 0..1 */
+                           <24 FSL_QE_TSA_UCC4>, /* 2..25 */
+                           <1 0>,                 /* TS 26 */
+                           <5 FSL_QE_TSA_UCC3>;  /* TS 27..31 */
+        };
+    };
diff --git a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-ucc-qmc.yaml b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-ucc-qmc.yaml
new file mode 100644
index 000000000000..71ae64cb8a4f
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-ucc-qmc.yaml
@@ -0,0 +1,197 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/fsl/cpm_qe/fsl,qe-ucc-qmc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PowerQUICC QE QUICC Multichannel Controller (QMC)
+
+maintainers:
+  - Herve Codina <herve.codina@bootlin.com>
+
+description:
+  The QMC (QUICC Multichannel Controller) emulates up to 64 channels within one
+  serial controller using the same TDM physical interface routed from TSA.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - fsl,mpc8321-ucc-qmc
+      - const: fsl,qe-ucc-qmc
+
+  reg:
+    items:
+      - description: UCC (Unified communication controller) register base
+      - description: Dual port ram base
+
+  reg-names:
+    items:
+      - const: ucc_regs
+      - const: dpram
+
+  interrupts:
+    maxItems: 1
+    description: UCC interrupt line in the QE interrupt controller
+
+  fsl,tsa-serial:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      - items:
+          - description: phandle to TSA node
+          - enum: [1, 2, 3, 4, 5]
+            description: |
+              TSA serial interface (dt-bindings/soc/qe-fsl,tsa.h defines these
+              values)
+               - 1: UCC1
+               - 2: UCC2
+               - 3: UCC3
+               - 4: UCC4
+               - 5: UCC5
+    description:
+      Should be a phandle/number pair. The phandle to TSA node and the TSA
+      serial interface to use.
+
+  fsl,soft-qmc:
+    $ref: /schemas/types.yaml#/definitions/string
+    description:
+      Soft QMC firmware name to load. If this property is omitted, no firmware
+      are used.
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+patternProperties:
+  '^channel@([0-9]|[1-5][0-9]|6[0-3])$':
+    description:
+      A channel managed by this controller
+    type: object
+    additionalProperties: false
+
+    properties:
+      compatible:
+        items:
+          - enum:
+              - fsl,mpc8321-ucc-qmc-hdlc
+          - const: fsl,qe-ucc-qmc-hdlc
+          - const: fsl,qmc-hdlc
+
+      reg:
+        minimum: 0
+        maximum: 63
+        description:
+          The channel number
+
+      fsl,operational-mode:
+        $ref: /schemas/types.yaml#/definitions/string
+        enum: [transparent, hdlc]
+        default: transparent
+        description: |
+          The channel operational mode
+            - hdlc: The channel handles HDLC frames
+            - transparent: The channel handles raw data without any processing
+
+      fsl,reverse-data:
+        $ref: /schemas/types.yaml#/definitions/flag
+        description:
+          The bit order as seen on the channels is reversed,
+          transmitting/receiving the MSB of each octet first.
+          This flag is used only in 'transparent' mode.
+
+      fsl,tx-ts-mask:
+        $ref: /schemas/types.yaml#/definitions/uint64
+        description:
+          Channel assigned Tx time-slots within the Tx time-slots routed by the
+          TSA to this cell.
+
+      fsl,rx-ts-mask:
+        $ref: /schemas/types.yaml#/definitions/uint64
+        description:
+          Channel assigned Rx time-slots within the Rx time-slots routed by the
+          TSA to this cell.
+
+      fsl,framer:
+        $ref: /schemas/types.yaml#/definitions/phandle
+        description:
+          phandle to the framer node. The framer is in charge of an E1/T1 line
+          interface connected to the TDM bus. It can be used to get the E1/T1 line
+          status such as link up/down.
+
+    allOf:
+      - if:
+          properties:
+            compatible:
+              not:
+                contains:
+                  const: fsl,qmc-hdlc
+        then:
+          properties:
+            fsl,framer: false
+
+    required:
+      - reg
+      - fsl,tx-ts-mask
+      - fsl,rx-ts-mask
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+  - fsl,tsa-serial
+  - '#address-cells'
+  - '#size-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/soc/qe-fsl,tsa.h>
+
+    qmc@a60 {
+        compatible = "fsl,mpc8321-ucc-qmc", "fsl,qe-ucc-qmc";
+        reg = <0x3200 0x200>,
+              <0x10000 0x1000>;
+        reg-names = "ucc_regs", "dpram";
+        interrupts = <35>;
+        interrupt-parent = <&qeic>;
+        fsl,soft-qmc = "fsl_qe_ucode_qmc_8321_11.bin";
+
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        fsl,tsa-serial = <&tsa FSL_QE_TSA_UCC4>;
+
+        channel@16 {
+            /* Ch16 : First 4 even TS from all routed from TSA */
+            reg = <16>;
+            fsl,operational-mode = "transparent";
+            fsl,reverse-data;
+            fsl,tx-ts-mask = <0x00000000 0x000000aa>;
+            fsl,rx-ts-mask = <0x00000000 0x000000aa>;
+        };
+
+        channel@17 {
+            /* Ch17 : First 4 odd TS from all routed from TSA */
+            reg = <17>;
+            fsl,operational-mode = "transparent";
+            fsl,reverse-data;
+            fsl,tx-ts-mask = <0x00000000 0x00000055>;
+            fsl,rx-ts-mask = <0x00000000 0x00000055>;
+        };
+
+        channel@19 {
+            /* Ch19 : 8 TS (TS 8..15) from all routed from TSA */
+            compatible = "fsl,mpc8321-ucc-qmc-hdlc",
+                         "fsl,qe-ucc-qmc-hdlc",
+                         "fsl,qmc-hdlc";
+            reg = <19>;
+            fsl,operational-mode = "hdlc";
+            fsl,tx-ts-mask = <0x00000000 0x0000ff00>;
+            fsl,rx-ts-mask = <0x00000000 0x0000ff00>;
+            fsl,framer = <&framer>;
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index f328373463b0..3e83ca09a61c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8996,6 +8996,7 @@ M:	Herve Codina <herve.codina@bootlin.com>
 L:	linuxppc-dev@lists.ozlabs.org
 S:	Maintained
 F:	Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-scc-qmc.yaml
+F:	Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-ucc-qmc.yaml
 F:	drivers/soc/fsl/qe/qmc.c
 F:	include/soc/fsl/qe/qmc.h
 
@@ -9011,9 +9012,11 @@ M:	Herve Codina <herve.codina@bootlin.com>
 L:	linuxppc-dev@lists.ozlabs.org
 S:	Maintained
 F:	Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml
+F:	Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-tsa.yaml
 F:	drivers/soc/fsl/qe/tsa.c
 F:	drivers/soc/fsl/qe/tsa.h
 F:	include/dt-bindings/soc/cpm1-fsl,tsa.h
+F:	include/dt-bindings/soc/qe-fsl,tsa.h
 
 FREESCALE QUICC ENGINE UCC ETHERNET DRIVER
 L:	netdev@vger.kernel.org
diff --git a/drivers/soc/fsl/qbman/qman_ccsr.c b/drivers/soc/fsl/qbman/qman_ccsr.c
index 392e54f14dbe..aa5348f4902f 100644
--- a/drivers/soc/fsl/qbman/qman_ccsr.c
+++ b/drivers/soc/fsl/qbman/qman_ccsr.c
@@ -791,8 +791,6 @@ static int fsl_qman_probe(struct platform_device *pdev)
 	 * FQD memory MUST be zero'd by software
 	 */
 	zero_priv_mem(fqd_a, fqd_sz);
-#else
-	WARN(1, "Unexpected architecture using non shared-dma-mem reservations");
 #endif
 	dev_dbg(dev, "Allocated FQD 0x%llx 0x%zx\n", fqd_a, fqd_sz);
 
diff --git a/drivers/soc/fsl/qbman/qman_portal.c b/drivers/soc/fsl/qbman/qman_portal.c
index e23b60618c1a..456ef5d5c199 100644
--- a/drivers/soc/fsl/qbman/qman_portal.c
+++ b/drivers/soc/fsl/qbman/qman_portal.c
@@ -48,9 +48,10 @@ static void portal_set_cpu(struct qm_portal_config *pcfg, int cpu)
 	struct device *dev = pcfg->dev;
 	int ret;
 
-	pcfg->iommu_domain = iommu_domain_alloc(&platform_bus_type);
-	if (!pcfg->iommu_domain) {
+	pcfg->iommu_domain = iommu_paging_domain_alloc(dev);
+	if (IS_ERR(pcfg->iommu_domain)) {
 		dev_err(dev, "%s(): iommu_domain_alloc() failed", __func__);
+		pcfg->iommu_domain = NULL;
 		goto no_iommu;
 	}
 	ret = fsl_pamu_configure_l1_stash(pcfg->iommu_domain, cpu);
diff --git a/drivers/soc/fsl/qe/Kconfig b/drivers/soc/fsl/qe/Kconfig
index fa9ffbed0e92..5e3c996eb19e 100644
--- a/drivers/soc/fsl/qe/Kconfig
+++ b/drivers/soc/fsl/qe/Kconfig
@@ -17,7 +17,7 @@ config QUICC_ENGINE
 
 config UCC_SLOW
 	bool
-	default y if SERIAL_QE
+	default y if SERIAL_QE || (CPM_QMC && QUICC_ENGINE)
 	help
 	  This option provides qe_lib support to UCC slow
 	  protocols: UART, BISYNC, QMC
@@ -31,26 +31,28 @@ config UCC_FAST
 
 config UCC
 	bool
-	default y if UCC_FAST || UCC_SLOW
+	default y if UCC_FAST || UCC_SLOW || (CPM_TSA && QUICC_ENGINE)
 
 config CPM_TSA
-	tristate "CPM TSA support"
+	tristate "CPM/QE TSA support"
 	depends on OF && HAS_IOMEM
-	depends on CPM1 || (CPM && COMPILE_TEST)
+	depends on CPM1 || QUICC_ENGINE || \
+		   ((CPM || QUICC_ENGINE) && COMPILE_TEST)
 	help
-	  Freescale CPM Time Slot Assigner (TSA)
+	  Freescale CPM/QE Time Slot Assigner (TSA)
 	  controller.
 
 	  This option enables support for this
 	  controller
 
 config CPM_QMC
-	tristate "CPM QMC support"
+	tristate "CPM/QE QMC support"
 	depends on OF && HAS_IOMEM
-	depends on CPM1 || (FSL_SOC && CPM && COMPILE_TEST)
+	depends on CPM1 || QUICC_ENGINE || \
+		   (FSL_SOC && (CPM || QUICC_ENGINE) && COMPILE_TEST)
 	depends on CPM_TSA
 	help
-	  Freescale CPM QUICC Multichannel Controller
+	  Freescale CPM/QE QUICC Multichannel Controller
 	  (QMC)
 
 	  This option enables support for this
diff --git a/drivers/soc/fsl/qe/qe_common.c b/drivers/soc/fsl/qe/qe_common.c
index a877347d37d3..02c29f5f86d3 100644
--- a/drivers/soc/fsl/qe/qe_common.c
+++ b/drivers/soc/fsl/qe/qe_common.c
@@ -13,6 +13,7 @@
  * 2006 (c) MontaVista Software, Inc.
  * Vitaly Bordug <vbordug@ru.mvista.com>
  */
+#include <linux/device.h>
 #include <linux/genalloc.h>
 #include <linux/init.h>
 #include <linux/list.h>
@@ -187,6 +188,49 @@ void cpm_muram_free(s32 offset)
 }
 EXPORT_SYMBOL(cpm_muram_free);
 
+static void devm_cpm_muram_release(struct device *dev, void *res)
+{
+	s32 *info = res;
+
+	cpm_muram_free(*info);
+}
+
+/**
+ * devm_cpm_muram_alloc - Resource-managed cpm_muram_alloc
+ * @dev: Device to allocate memory for
+ * @size: number of bytes to allocate
+ * @align: requested alignment, in bytes
+ *
+ * This function returns a non-negative offset into the muram area, or
+ * a negative errno on failure as cpm_muram_alloc() does.
+ * Use cpm_muram_addr() to get the virtual address of the area.
+ *
+ * Compare against cpm_muram_alloc(), the memory allocated by this
+ * resource-managed version is automatically freed on driver detach and so,
+ * cpm_muram_free() must not be called to release the allocated memory.
+ */
+s32 devm_cpm_muram_alloc(struct device *dev, unsigned long size,
+			 unsigned long align)
+{
+	s32 info;
+	s32 *dr;
+
+	dr = devres_alloc(devm_cpm_muram_release, sizeof(*dr), GFP_KERNEL);
+	if (!dr)
+		return -ENOMEM;
+
+	info = cpm_muram_alloc(size, align);
+	if (info >= 0) {
+		*dr = info;
+		devres_add(dev, dr);
+	} else {
+		devres_free(dr);
+	}
+
+	return info;
+}
+EXPORT_SYMBOL(devm_cpm_muram_alloc);
+
 /*
  * cpm_muram_alloc_fixed - reserve a specific region of multi-user ram
  * @offset: offset of allocation start address
@@ -212,6 +256,42 @@ s32 cpm_muram_alloc_fixed(unsigned long offset, unsigned long size)
 EXPORT_SYMBOL(cpm_muram_alloc_fixed);
 
 /**
+ * devm_cpm_muram_alloc_fixed - Resource-managed cpm_muram_alloc_fixed
+ * @dev: Device to allocate memory for
+ * @offset: offset of allocation start address
+ * @size: number of bytes to allocate
+ *
+ * This function returns a non-negative offset into the muram area, or
+ * a negative errno on failure as cpm_muram_alloc_fixed() does.
+ * Use cpm_muram_addr() to get the virtual address of the area.
+ *
+ * Compare against cpm_muram_alloc_fixed(), the memory allocated by this
+ * resource-managed version is automatically freed on driver detach and so,
+ * cpm_muram_free() must not be called to release the allocated memory.
+ */
+s32 devm_cpm_muram_alloc_fixed(struct device *dev, unsigned long offset,
+			       unsigned long size)
+{
+	s32 info;
+	s32 *dr;
+
+	dr = devres_alloc(devm_cpm_muram_release, sizeof(*dr), GFP_KERNEL);
+	if (!dr)
+		return -ENOMEM;
+
+	info = cpm_muram_alloc_fixed(offset, size);
+	if (info >= 0) {
+		*dr = info;
+		devres_add(dev, dr);
+	} else {
+		devres_free(dr);
+	}
+
+	return info;
+}
+EXPORT_SYMBOL(devm_cpm_muram_alloc_fixed);
+
+/**
  * cpm_muram_addr - turn a muram offset into a virtual address
  * @offset: muram offset to convert
  */
diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c
index 76bb496305a0..3dffebb48b0d 100644
--- a/drivers/soc/fsl/qe/qmc.c
+++ b/drivers/soc/fsl/qe/qmc.c
@@ -8,7 +8,9 @@
  */
 
 #include <soc/fsl/qe/qmc.h>
+#include <linux/bitfield.h>
 #include <linux/dma-mapping.h>
+#include <linux/firmware.h>
 #include <linux/hdlc.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -18,31 +20,41 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <soc/fsl/cpm.h>
+#include <soc/fsl/qe/ucc_slow.h>
+#include <soc/fsl/qe/qe.h>
 #include <sysdev/fsl_soc.h>
 #include "tsa.h"
 
-/* SCC general mode register high (32 bits) */
+/* SCC general mode register low (32 bits) (GUMR_L in QE) */
 #define SCC_GSMRL	0x00
-#define SCC_GSMRL_ENR		(1 << 5)
-#define SCC_GSMRL_ENT		(1 << 4)
-#define SCC_GSMRL_MODE_QMC	(0x0A << 0)
+#define SCC_GSMRL_ENR		BIT(5)
+#define SCC_GSMRL_ENT		BIT(4)
+#define SCC_GSMRL_MODE_MASK	GENMASK(3, 0)
+#define SCC_CPM1_GSMRL_MODE_QMC	FIELD_PREP_CONST(SCC_GSMRL_MODE_MASK, 0x0A)
+#define SCC_QE_GSMRL_MODE_QMC	FIELD_PREP_CONST(SCC_GSMRL_MODE_MASK, 0x02)
 
-/* SCC general mode register low (32 bits) */
+/* SCC general mode register high (32 bits) (identical to GUMR_H in QE) */
 #define SCC_GSMRH	0x04
-#define   SCC_GSMRH_CTSS	(1 << 7)
-#define   SCC_GSMRH_CDS		(1 << 8)
-#define   SCC_GSMRH_CTSP	(1 << 9)
-#define   SCC_GSMRH_CDP		(1 << 10)
-
-/* SCC event register (16 bits) */
+#define   SCC_GSMRH_CTSS	BIT(7)
+#define   SCC_GSMRH_CDS		BIT(8)
+#define   SCC_GSMRH_CTSP	BIT(9)
+#define   SCC_GSMRH_CDP		BIT(10)
+#define   SCC_GSMRH_TTX		BIT(11)
+#define   SCC_GSMRH_TRX		BIT(12)
+
+/* SCC event register (16 bits) (identical to UCCE in QE) */
 #define SCC_SCCE	0x10
-#define   SCC_SCCE_IQOV		(1 << 3)
-#define   SCC_SCCE_GINT		(1 << 2)
-#define   SCC_SCCE_GUN		(1 << 1)
-#define   SCC_SCCE_GOV		(1 << 0)
+#define   SCC_SCCE_IQOV		BIT(3)
+#define   SCC_SCCE_GINT		BIT(2)
+#define   SCC_SCCE_GUN		BIT(1)
+#define   SCC_SCCE_GOV		BIT(0)
 
 /* SCC mask register (16 bits) */
 #define SCC_SCCM	0x14
+
+/* UCC Extended Mode Register (8 bits, QE only) */
+#define SCC_QE_UCC_GUEMR	0x90
+
 /* Multichannel base pointer (32 bits) */
 #define QMC_GBL_MCBASE		0x00
 /* Multichannel controller state (16 bits) */
@@ -73,27 +85,42 @@
 #define QMC_GBL_TSATTX		0x60
 /* CRC constant (16 bits) */
 #define QMC_GBL_C_MASK16	0xA0
+/* Rx framer base pointer (16 bits, QE only) */
+#define QMC_QE_GBL_RX_FRM_BASE	0xAC
+/* Tx framer base pointer (16 bits, QE only) */
+#define QMC_QE_GBL_TX_FRM_BASE	0xAE
+/* A reserved area (0xB0 -> 0xC3) that must be initialized to 0 (QE only) */
+#define QMC_QE_GBL_RSV_B0_START	0xB0
+#define QMC_QE_GBL_RSV_B0_SIZE	0x14
+/* QMC Global Channel specific base (32 bits, QE only) */
+#define QMC_QE_GBL_GCSBASE	0xC4
 
 /* TSA entry (16bit entry in TSATRX and TSATTX) */
-#define QMC_TSA_VALID		(1 << 15)
-#define QMC_TSA_WRAP		(1 << 14)
-#define QMC_TSA_MASK		(0x303F)
-#define QMC_TSA_CHANNEL(x)	((x) << 6)
+#define QMC_TSA_VALID		BIT(15)
+#define QMC_TSA_WRAP		BIT(14)
+#define QMC_TSA_MASK_MASKH	GENMASK(13, 12)
+#define QMC_TSA_MASK_MASKL	GENMASK(5, 0)
+#define QMC_TSA_MASK_8BIT	(FIELD_PREP_CONST(QMC_TSA_MASK_MASKH, 0x3) | \
+				 FIELD_PREP_CONST(QMC_TSA_MASK_MASKL, 0x3F))
+#define QMC_TSA_CHANNEL_MASK	GENMASK(11, 6)
+#define QMC_TSA_CHANNEL(x)	FIELD_PREP(QMC_TSA_CHANNEL_MASK, x)
 
 /* Tx buffer descriptor base address (16 bits, offset from MCBASE) */
 #define QMC_SPE_TBASE	0x00
 
 /* Channel mode register (16 bits) */
 #define QMC_SPE_CHAMR	0x02
-#define   QMC_SPE_CHAMR_MODE_HDLC	(1 << 15)
-#define   QMC_SPE_CHAMR_MODE_TRANSP	((0 << 15) | (1 << 13))
-#define   QMC_SPE_CHAMR_ENT		(1 << 12)
-#define   QMC_SPE_CHAMR_POL		(1 << 8)
-#define   QMC_SPE_CHAMR_HDLC_IDLM	(1 << 13)
-#define   QMC_SPE_CHAMR_HDLC_CRC	(1 << 7)
-#define   QMC_SPE_CHAMR_HDLC_NOF	(0x0f << 0)
-#define   QMC_SPE_CHAMR_TRANSP_RD	(1 << 14)
-#define   QMC_SPE_CHAMR_TRANSP_SYNC	(1 << 10)
+#define   QMC_SPE_CHAMR_MODE_MASK	GENMASK(15, 15)
+#define   QMC_SPE_CHAMR_MODE_HDLC	FIELD_PREP_CONST(QMC_SPE_CHAMR_MODE_MASK, 1)
+#define   QMC_SPE_CHAMR_MODE_TRANSP	(FIELD_PREP_CONST(QMC_SPE_CHAMR_MODE_MASK, 0) | BIT(13))
+#define   QMC_SPE_CHAMR_ENT		BIT(12)
+#define   QMC_SPE_CHAMR_POL		BIT(8)
+#define   QMC_SPE_CHAMR_HDLC_IDLM	BIT(13)
+#define   QMC_SPE_CHAMR_HDLC_CRC	BIT(7)
+#define   QMC_SPE_CHAMR_HDLC_NOF_MASK	GENMASK(3, 0)
+#define   QMC_SPE_CHAMR_HDLC_NOF(x)	FIELD_PREP(QMC_SPE_CHAMR_HDLC_NOF_MASK, x)
+#define   QMC_SPE_CHAMR_TRANSP_RD	BIT(14)
+#define   QMC_SPE_CHAMR_TRANSP_SYNC	BIT(10)
 
 /* Tx internal state (32 bits) */
 #define QMC_SPE_TSTATE	0x04
@@ -120,43 +147,47 @@
 
 /* Transparent synchronization (16 bits) */
 #define QMC_SPE_TRNSYNC 0x3C
-#define   QMC_SPE_TRNSYNC_RX(x)	((x) << 8)
-#define   QMC_SPE_TRNSYNC_TX(x)	((x) << 0)
+#define   QMC_SPE_TRNSYNC_RX_MASK	GENMASK(15, 8)
+#define   QMC_SPE_TRNSYNC_RX(x)		FIELD_PREP(QMC_SPE_TRNSYNC_RX_MASK, x)
+#define   QMC_SPE_TRNSYNC_TX_MASK	GENMASK(7, 0)
+#define   QMC_SPE_TRNSYNC_TX(x)		FIELD_PREP(QMC_SPE_TRNSYNC_TX_MASK, x)
 
 /* Interrupt related registers bits */
-#define QMC_INT_V		(1 << 15)
-#define QMC_INT_W		(1 << 14)
-#define QMC_INT_NID		(1 << 13)
-#define QMC_INT_IDL		(1 << 12)
-#define QMC_INT_GET_CHANNEL(x)	(((x) & 0x0FC0) >> 6)
-#define QMC_INT_MRF		(1 << 5)
-#define QMC_INT_UN		(1 << 4)
-#define QMC_INT_RXF		(1 << 3)
-#define QMC_INT_BSY		(1 << 2)
-#define QMC_INT_TXB		(1 << 1)
-#define QMC_INT_RXB		(1 << 0)
+#define QMC_INT_V		BIT(15)
+#define QMC_INT_W		BIT(14)
+#define QMC_INT_NID		BIT(13)
+#define QMC_INT_IDL		BIT(12)
+#define QMC_INT_CHANNEL_MASK	GENMASK(11, 6)
+#define QMC_INT_GET_CHANNEL(x)	FIELD_GET(QMC_INT_CHANNEL_MASK, x)
+#define QMC_INT_MRF		BIT(5)
+#define QMC_INT_UN		BIT(4)
+#define QMC_INT_RXF		BIT(3)
+#define QMC_INT_BSY		BIT(2)
+#define QMC_INT_TXB		BIT(1)
+#define QMC_INT_RXB		BIT(0)
 
 /* BD related registers bits */
-#define QMC_BD_RX_E	(1 << 15)
-#define QMC_BD_RX_W	(1 << 13)
-#define QMC_BD_RX_I	(1 << 12)
-#define QMC_BD_RX_L	(1 << 11)
-#define QMC_BD_RX_F	(1 << 10)
-#define QMC_BD_RX_CM	(1 << 9)
-#define QMC_BD_RX_UB	(1 << 7)
-#define QMC_BD_RX_LG	(1 << 5)
-#define QMC_BD_RX_NO	(1 << 4)
-#define QMC_BD_RX_AB	(1 << 3)
-#define QMC_BD_RX_CR	(1 << 2)
-
-#define QMC_BD_TX_R	(1 << 15)
-#define QMC_BD_TX_W	(1 << 13)
-#define QMC_BD_TX_I	(1 << 12)
-#define QMC_BD_TX_L	(1 << 11)
-#define QMC_BD_TX_TC	(1 << 10)
-#define QMC_BD_TX_CM	(1 << 9)
-#define QMC_BD_TX_UB	(1 << 7)
-#define QMC_BD_TX_PAD	(0x0f << 0)
+#define QMC_BD_RX_E	BIT(15)
+#define QMC_BD_RX_W	BIT(13)
+#define QMC_BD_RX_I	BIT(12)
+#define QMC_BD_RX_L	BIT(11)
+#define QMC_BD_RX_F	BIT(10)
+#define QMC_BD_RX_CM	BIT(9)
+#define QMC_BD_RX_UB	BIT(7)
+#define QMC_BD_RX_LG	BIT(5)
+#define QMC_BD_RX_NO	BIT(4)
+#define QMC_BD_RX_AB	BIT(3)
+#define QMC_BD_RX_CR	BIT(2)
+
+#define QMC_BD_TX_R		BIT(15)
+#define QMC_BD_TX_W		BIT(13)
+#define QMC_BD_TX_I		BIT(12)
+#define QMC_BD_TX_L		BIT(11)
+#define QMC_BD_TX_TC		BIT(10)
+#define QMC_BD_TX_CM		BIT(9)
+#define QMC_BD_TX_UB		BIT(7)
+#define QMC_BD_TX_PAD_MASK	GENMASK(3, 0)
+#define QMC_BD_TX_PAD(x)	FIELD_PREP(QMC_BD_TX_PAD_MASK, x)
 
 /* Numbers of BDs and interrupt items */
 #define QMC_NB_TXBDS	8
@@ -184,7 +215,7 @@ struct qmc_chan {
 	u64	rx_ts_mask;
 	bool is_reverse_data;
 
-	spinlock_t	tx_lock;
+	spinlock_t	tx_lock; /* Protect Tx related data */
 	cbd_t __iomem *txbds;
 	cbd_t __iomem *txbd_free;
 	cbd_t __iomem *txbd_done;
@@ -192,7 +223,7 @@ struct qmc_chan {
 	u64	nb_tx_underrun;
 	bool	is_tx_stopped;
 
-	spinlock_t	rx_lock;
+	spinlock_t	rx_lock; /* Protect Rx related data */
 	cbd_t __iomem *rxbds;
 	cbd_t __iomem *rxbd_free;
 	cbd_t __iomem *rxbd_done;
@@ -203,13 +234,31 @@ struct qmc_chan {
 	bool	is_rx_stopped;
 };
 
+enum qmc_version {
+	QMC_CPM1,
+	QMC_QE,
+};
+
+struct qmc_data {
+	enum qmc_version version;
+	u32 tstate; /* Initial TSTATE value */
+	u32 rstate; /* Initial RSTATE value */
+	u32 zistate; /* Initial ZISTATE value */
+	u32 zdstate_hdlc; /* Initial ZDSTATE value (HDLC mode) */
+	u32 zdstate_transp; /* Initial ZDSTATE value (Transparent mode) */
+	u32 rpack; /* Initial RPACK value */
+};
+
 struct qmc {
 	struct device *dev;
+	const struct qmc_data *data;
 	struct tsa_serial *tsa_serial;
 	void __iomem *scc_regs;
 	void __iomem *scc_pram;
 	void __iomem *dpram;
 	u16 scc_pram_offset;
+	u32 dpram_offset;
+	u32 qe_subblock;
 	cbd_t __iomem *bd_table;
 	dma_addr_t bd_dma_addr;
 	size_t bd_size;
@@ -222,6 +271,11 @@ struct qmc {
 	struct qmc_chan *chans[64];
 };
 
+static void qmc_write8(void __iomem *addr, u8 val)
+{
+	iowrite8(val, addr);
+}
+
 static void qmc_write16(void __iomem *addr, u16 val)
 {
 	iowrite16be(val, addr);
@@ -262,6 +316,13 @@ static void qmc_setbits32(void __iomem *addr, u32 set)
 	qmc_write32(addr, qmc_read32(addr) | set);
 }
 
+static bool qmc_is_qe(const struct qmc *qmc)
+{
+	if (IS_ENABLED(CONFIG_QUICC_ENGINE) && IS_ENABLED(CONFIG_CPM))
+		return qmc->data->version == QMC_QE;
+
+	return IS_ENABLED(CONFIG_QUICC_ENGINE);
+}
 
 int qmc_chan_get_info(struct qmc_chan *chan, struct qmc_chan_info *info)
 {
@@ -348,8 +409,8 @@ int qmc_chan_set_param(struct qmc_chan *chan, const struct qmc_chan_param *param
 
 	switch (param->mode) {
 	case QMC_HDLC:
-		if ((param->hdlc.max_rx_buf_size % 4) ||
-		    (param->hdlc.max_rx_buf_size < 8))
+		if (param->hdlc.max_rx_buf_size % 4 ||
+		    param->hdlc.max_rx_buf_size < 8)
 			return -EINVAL;
 
 		qmc_write16(chan->qmc->scc_pram + QMC_GBL_MRBLR,
@@ -532,11 +593,12 @@ int qmc_chan_read_submit(struct qmc_chan *chan, dma_addr_t addr, size_t length,
 	/* Restart receiver if needed */
 	if (chan->is_rx_halted && !chan->is_rx_stopped) {
 		/* Restart receiver */
-		if (chan->mode == QMC_TRANSPARENT)
-			qmc_write32(chan->s_param + QMC_SPE_ZDSTATE, 0x18000080);
-		else
-			qmc_write32(chan->s_param + QMC_SPE_ZDSTATE, 0x00000080);
-		qmc_write32(chan->s_param + QMC_SPE_RSTATE, 0x31000000);
+		qmc_write32(chan->s_param + QMC_SPE_RPACK, chan->qmc->d