dt-bindings: memory: Add Tegra186 support

As opposed to earlier incarnations, the memory controller on Tegra186 no
longer implements an SMMU. Instead the SMMU is a regular ARM SMMU and in
a separate IP block.

However, the memory controller programs the SMMU stream IDs for each of
the memory clients. Add a header file with definitions for each of these
stream IDs and mark the #iommu-cells property as required on Tegra30 to
Tegra210 in the device tree bindings.

Signed-off-by: Thierry Reding <treding@nvidia.com>

Documentation/devicetree/bindings/memory-controllers/nvidia,tegra30-mc.txt

@@ -12,6 +12,8 @@ Required properties:
 - clock-names: Must include the following entries:
   - mc: the module's clock input
 - interrupts: The interrupt outputs from the controller.
+
+Required properties for Tegra30, Tegra114, Tegra124, Tegra132 and Tegra210:
 - #iommu-cells: Should be 1. The single cell of the IOMMU specifier defines
   the SWGROUP of the master.
 

include/dt-bindings/memory/tegra186-mc.h

@@ -0,0 +1,111 @@
+#ifndef DT_BINDINGS_MEMORY_TEGRA186_MC_H
+#define DT_BINDINGS_MEMORY_TEGRA186_MC_H
+
+/* special clients */
+#define TEGRA186_SID_INVALID		0x00
+#define TEGRA186_SID_PASSTHROUGH	0x7f
+
+/* host1x clients */
+#define TEGRA186_SID_HOST1X		0x01
+#define TEGRA186_SID_CSI		0x02
+#define TEGRA186_SID_VIC		0x03
+#define TEGRA186_SID_VI			0x04
+#define TEGRA186_SID_ISP		0x05
+#define TEGRA186_SID_NVDEC		0x06
+#define TEGRA186_SID_NVENC		0x07
+#define TEGRA186_SID_NVJPG		0x08
+#define TEGRA186_SID_NVDISPLAY		0x09
+#define TEGRA186_SID_TSEC		0x0a
+#define TEGRA186_SID_TSECB		0x0b
+#define TEGRA186_SID_SE			0x0c
+#define TEGRA186_SID_SE1		0x0d
+#define TEGRA186_SID_SE2		0x0e
+#define TEGRA186_SID_SE3		0x0f
+
+/* GPU clients */
+#define TEGRA186_SID_GPU		0x10
+
+/* other SoC clients */
+#define TEGRA186_SID_AFI		0x11
+#define TEGRA186_SID_HDA		0x12
+#define TEGRA186_SID_ETR		0x13
+#define TEGRA186_SID_EQOS		0x14
+#define TEGRA186_SID_UFSHC		0x15
+#define TEGRA186_SID_AON		0x16
+#define TEGRA186_SID_SDMMC4		0x17
+#define TEGRA186_SID_SDMMC3		0x18
+#define TEGRA186_SID_SDMMC2		0x19
+#define TEGRA186_SID_SDMMC1		0x1a
+#define TEGRA186_SID_XUSB_HOST		0x1b
+#define TEGRA186_SID_XUSB_DEV		0x1c
+#define TEGRA186_SID_SATA		0x1d
+#define TEGRA186_SID_APE		0x1e
+#define TEGRA186_SID_SCE		0x1f
+
+/* GPC DMA clients */
+#define TEGRA186_SID_GPCDMA_0		0x20
+#define TEGRA186_SID_GPCDMA_1		0x21
+#define TEGRA186_SID_GPCDMA_2		0x22
+#define TEGRA186_SID_GPCDMA_3		0x23
+#define TEGRA186_SID_GPCDMA_4		0x24
+#define TEGRA186_SID_GPCDMA_5		0x25
+#define TEGRA186_SID_GPCDMA_6		0x26
+#define TEGRA186_SID_GPCDMA_7		0x27
+
+/* APE DMA clients */
+#define TEGRA186_SID_APE_1		0x28
+#define TEGRA186_SID_APE_2		0x29
+
+/* camera RTCPU */
+#define TEGRA186_SID_RCE		0x2a
+
+/* camera RTCPU on host1x address space */
+#define TEGRA186_SID_RCE_1X		0x2b
+
+/* APE DMA clients */
+#define TEGRA186_SID_APE_3		0x2c
+
+/* camera RTCPU running on APE */
+#define TEGRA186_SID_APE_CAM		0x2d
+#define TEGRA186_SID_APE_CAM_1X		0x2e
+
+/*
+ * The BPMP has its SID value hardcoded in the firmware. Changing it requires
+ * considerable effort.
+ */
+#define TEGRA186_SID_BPMP		0x32
+
+/* for SMMU tests */
+#define TEGRA186_SID_SMMU_TEST		0x33
+
+/* host1x virtualization channels */
+#define TEGRA186_SID_HOST1X_CTX0	0x38
+#define TEGRA186_SID_HOST1X_CTX1	0x39
+#define TEGRA186_SID_HOST1X_CTX2	0x3a
+#define TEGRA186_SID_HOST1X_CTX3	0x3b
+#define TEGRA186_SID_HOST1X_CTX4	0x3c
+#define TEGRA186_SID_HOST1X_CTX5	0x3d
+#define TEGRA186_SID_HOST1X_CTX6	0x3e
+#define TEGRA186_SID_HOST1X_CTX7	0x3f
+
+/* host1x command buffers */
+#define TEGRA186_SID_HOST1X_VM0		0x40
+#define TEGRA186_SID_HOST1X_VM1		0x41
+#define TEGRA186_SID_HOST1X_VM2		0x42
+#define TEGRA186_SID_HOST1X_VM3		0x43
+#define TEGRA186_SID_HOST1X_VM4		0x44
+#define TEGRA186_SID_HOST1X_VM5		0x45
+#define TEGRA186_SID_HOST1X_VM6		0x46
+#define TEGRA186_SID_HOST1X_VM7		0x47
+
+/* SE data buffers */
+#define TEGRA186_SID_SE_VM0		0x48
+#define TEGRA186_SID_SE_VM1		0x49
+#define TEGRA186_SID_SE_VM2		0x4a
+#define TEGRA186_SID_SE_VM3		0x4b
+#define TEGRA186_SID_SE_VM4		0x4c
+#define TEGRA186_SID_SE_VM5		0x4d
+#define TEGRA186_SID_SE_VM6		0x4e
+#define TEGRA186_SID_SE_VM7		0x4f
+
+#endif