ARM: DTS: am33xx: Use the new DT bindings for the eDMA3

Switch to use the ti,edma3-tpcc and ti,edma3-tptc binding for the eDMA3 and
enable the DMA even crossbar with ti,am335x-edma-crossbar.
With the new bindings boards can customize and tweak the DMA channel
priority to match their needs. With the new binding the memcpy is safe
to be used since with the old binding it was not possible for a driver
to know which channel is allowed to be used as non HW triggered channel.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index 4caf074063fe52ffc832b1c4fd9119a9aee6d165..a55072fb664669bf1ec6c3bf499b4e592fc90a37 100644 (file)
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -743,8 +743,8 @@
 &mmc3 {
        /* these are on the crossbar and are outlined in the
           xbar-event-map element */
-       dmas = <&edma 12
-               &edma 13>;
+       dmas = <&edma_xbar 12 0 1
+               &edma_xbar 13 0 2>;
        dma-names = "tx", "rx";
        status = "okay";
        vmmc-supply = <&wlan_en_reg>;
@@ -766,11 +766,6 @@
        };
 };
 
-&edma {
-       ti,edma-xbar-event-map = /bits/ 16 <1 12
-                                           2 13>;
-};
-
 &sham {
        status = "okay";
 };

diff --git a/arch/arm/boot/dts/am335x-pepper.dts b/arch/arm/boot/dts/am335x-pepper.dts
index 9cb77a120319310c39862bbc9a93a36750ebb0cc..4dd4f71498e5931f78d1ef6baf48b43a98ae20ae 100644 (file)
--- a/arch/arm/boot/dts/am335x-pepper.dts
+++ b/arch/arm/boot/dts/am335x-pepper.dts
@@ -339,13 +339,6 @@
        ti,non-removable;
 };
 
-&edma {
-       /* Map eDMA MMC2 Events from Crossbar */
-       ti,edma-xbar-event-map = /bits/ 16 <1 12
-                                            2 13>;
-};
-
-
 &mmc3 {
        /* Wifi & Bluetooth on MMC #3 */
        status = "okay";
@@ -354,8 +347,8 @@
        vmmmc-supply = <&v3v3c_reg>;
        bus-width = <4>;
        ti,non-removable;
-       dmas = <&edma 12
-               &edma 13>;
+       dmas = <&edma_xbar 12 0 1
+               &edma_xbar 13 0 2>;
        dma-names = "tx", "rx";
 };
 

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 9b8861891bf038e486ba2e5b2bbbf451b6c9c5cd..04885f9f959e21fcffb388940d64be0b6eb32869 100644 (file)
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -161,6 +161,14 @@
                                        mboxes = <&mailbox &mbox_wkupm3>;
                                };
 
+                               edma_xbar: dma-router@f90 {
+                                       compatible = "ti,am335x-edma-crossbar";
+                                       reg = <0xf90 0x40>;
+                                       #dma-cells = <3>;
+                                       dma-requests = <32>;
+                                       dma-masters = <&edma>;
+                               };
+
                                scm_clockdomains: clockdomains {
                                };
                        };
@@ -174,12 +182,44 @@
                };
 
                edma: edma@49000000 {
-                       compatible = "ti,edma3";
-                       ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2";
-                       reg =   <0x49000000 0x10000>,
-                               <0x44e10f90 0x40>;
+                       compatible = "ti,edma3-tpcc";
+                       ti,hwmods = "tpcc";
+                       reg =   <0x49000000 0x10000>;
+                       reg-names = "edma3_cc";
                        interrupts = <12 13 14>;
-                       #dma-cells = <1>;
+                       interrupt-names = "edma3_ccint", "emda3_mperr",
+                                         "edma3_ccerrint";
+                       dma-requests = <64>;
+                       #dma-cells = <2>;
+
+                       ti,tptcs = <&edma_tptc0 7>, <&edma_tptc1 5>,
+                                  <&edma_tptc2 0>;
+
+                       ti,edma-memcpy-channels = <20 21>;
+               };
+
+               edma_tptc0: tptc@49800000 {
+                       compatible = "ti,edma3-tptc";
+                       ti,hwmods = "tptc0";
+                       reg =   <0x49800000 0x100000>;
+                       interrupts = <112>;
+                       interrupt-names = "edma3_tcerrint";
+               };
+
+               edma_tptc1: tptc@49900000 {
+                       compatible = "ti,edma3-tptc";
+                       ti,hwmods = "tptc1";
+                       reg =   <0x49900000 0x100000>;
+                       interrupts = <113>;
+                       interrupt-names = "edma3_tcerrint";
+               };
+
+               edma_tptc2: tptc@49a00000 {
+                       compatible = "ti,edma3-tptc";
+                       ti,hwmods = "tptc2";
+                       reg =   <0x49a00000 0x100000>;
+                       interrupts = <114>;
+                       interrupt-names = "edma3_tcerrint";
                };
 
                gpio0: gpio@44e07000 {
@@ -233,7 +273,7 @@
                        reg = <0x44e09000 0x2000>;
                        interrupts = <72>;
                        status = "disabled";
-                       dmas = <&edma 26>, <&edma 27>;
+                       dmas = <&edma 26 0>, <&edma 27 0>;
                        dma-names = "tx", "rx";
                };
 
@@ -244,7 +284,7 @@
                        reg = <0x48022000 0x2000>;
                        interrupts = <73>;
                        status = "disabled";
-                       dmas = <&edma 28>, <&edma 29>;
+                       dmas = <&edma 28 0>, <&edma 29 0>;
                        dma-names = "tx", "rx";
                };
 
@@ -255,7 +295,7 @@
                        reg = <0x48024000 0x2000>;
                        interrupts = <74>;
                        status = "disabled";
-                       dmas = <&edma 30>, <&edma 31>;
+                       dmas = <&edma 30 0>, <&edma 31 0>;
                        dma-names = "tx", "rx";
                };
 
@@ -322,8 +362,8 @@
                        ti,dual-volt;
                        ti,needs-special-reset;
                        ti,needs-special-hs-handling;
-                       dmas = <&edma 24
-                               &edma 25>;
+                       dmas = <&edma_xbar 24 0 0
+                               &edma_xbar 25 0 0>;
                        dma-names = "tx", "rx";
                        interrupts = <64>;
                        interrupt-parent = <&intc>;
@@ -335,8 +375,8 @@
                        compatible = "ti,omap4-hsmmc";
                        ti,hwmods = "mmc2";
                        ti,needs-special-reset;
-                       dmas = <&edma 2
-                               &edma 3>;
+                       dmas = <&edma 2 0
+                               &edma 3 0>;
                        dma-names = "tx", "rx";
                        interrupts = <28>;
                        interrupt-parent = <&intc>;
@@ -474,10 +514,10 @@
                        interrupts = <65>;
                        ti,spi-num-cs = <2>;
                        ti,hwmods = "spi0";
-                       dmas = <&edma 16
-                               &edma 17
-                               &edma 18
-                               &edma 19>;
+                       dmas = <&edma 16 0
+                               &edma 17 0
+                               &edma 18 0
+                               &edma 19 0>;
                        dma-names = "tx0", "rx0", "tx1", "rx1";
                        status = "disabled";
                };
@@ -490,10 +530,10 @@
                        interrupts = <125>;
                        ti,spi-num-cs = <2>;
                        ti,hwmods = "spi1";
-                       dmas = <&edma 42
-                               &edma 43
-                               &edma 44
-                               &edma 45>;
+                       dmas = <&edma 42 0
+                               &edma 43 0
+                               &edma 44 0
+                               &edma 45 0>;
                        dma-names = "tx0", "rx0", "tx1", "rx1";
                        status = "disabled";
                };
@@ -833,7 +873,7 @@
                        ti,hwmods = "sham";
                        reg = <0x53100000 0x200>;
                        interrupts = <109>;
-                       dmas = <&edma 36>;
+                       dmas = <&edma 36 0>;
                        dma-names = "rx";
                };
 
@@ -842,8 +882,8 @@
                        ti,hwmods = "aes";
                        reg = <0x53500000 0xa0>;
                        interrupts = <103>;
-                       dmas = <&edma 6>,
-                              <&edma 5>;
+                       dmas = <&edma 6 0>,
+                              <&edma 5 0>;
                        dma-names = "tx", "rx";
                };
 
@@ -856,8 +896,8 @@
                        interrupts = <80>, <81>;
                        interrupt-names = "tx", "rx";
                        status = "disabled";
-                       dmas = <&edma 8>,
-                               <&edma 9>;
+                       dmas = <&edma 8 2>,
+                               <&edma 9 2>;
                        dma-names = "tx", "rx";
                };
 
@@ -870,8 +910,8 @@
                        interrupts = <82>, <83>;
                        interrupt-names = "tx", "rx";
                        status = "disabled";
-                       dmas = <&edma 10>,
-                               <&edma 11>;
+                       dmas = <&edma 10 2>,
+                               <&edma 11 2>;
                        dma-names = "tx", "rx";
                };