*
* Copyright (C) 2018 Renesas Electronics
*
+ * As upstream Linux does not support XIP, it cannot run in 8 MiB of HyperRAM.
+ * Hence the 64 MiB of SDRAM on the sub-board needs to be enabled, which has
+ * the following ramifications:
+ * - SCIF4 connected to the on-board USB-serial can no longer be used as the
+ * serial console,
+ * - Instead, SCIF2 is used as the serial console, by connecting a 3.3V TTL
+ * USB-to-Serial adapter to the CMOS camera connector:
+ * - RXD = CN17-9,
+ * - TXD = CN17-10,
+ * - GND = CN17-2 or CN17-17,
+ * - The first Ethernet channel can no longer be used,
+ * - USB Channel 1 loses the overcurrent input signal.
+ *
+ * Please make sure your sub-board matches the following switch settings:
+ *
+ * SW6 SW6-1 set to SDRAM
+ * ON SW6-2 set to Audio
+ * +---------------------+ SW6-3 set to DRP
+ * | = = = = = | SW6-4 set to CEU
+ * | = = | SW6-5 set to Ether2
+ * | 1 2 3 4 5 6 7 8 9 0 | SW6-6 set to VDC6
+ * +---------------------+ SW6-7 set to VDC6
*/
/dts-v1/;
compatible = "renesas,rza2mevb", "renesas,r7s9210";
aliases {
- serial0 = &scif4;
- ethernet0 = ðer0;
- ethernet1 = ðer1;
+ serial0 = &scif2;
+ ethernet0 = ðer1;
};
chosen {
};
};
- memory@40000000 {
+ memory@c000000 {
device_type = "memory";
- reg = <0x40000000 0x00800000>; /* HyperRAM */
+ reg = <0x0c000000 0x04000000>; /* SDRAM */
};
};
status = "okay";
};
-ðer0 {
- pinctrl-names = "default";
- pinctrl-0 = <ð0_pins>;
- status = "okay";
- renesas,no-ether-link;
- phy-handle = <&phy0>;
- phy0: ethernet-phy@0 {
- reg = <0>;
- };
-};
-
ðer1 {
pinctrl-names = "default";
pinctrl-0 = <ð1_pins>;
};
/* Serial Console */
- scif4_pins: serial4 {
- pinmux = <RZA2_PINMUX(PORT9, 0, 4)>, /* TxD4 */
- <RZA2_PINMUX(PORT9, 1, 4)>; /* RxD4 */
+ scif2_pins: serial2 {
+ pinmux = <RZA2_PINMUX(PORTE, 2, 3)>, /* TxD2 */
+ <RZA2_PINMUX(PORTE, 1, 3)>; /* RxD2 */
};
sdhi0_pins: sdhi0 {
usb1_pins: usb1 {
pinmux = <RZA2_PINMUX(PORTC, 0, 1)>, /* VBUSIN1 */
- <RZA2_PINMUX(PORTC, 5, 1)>, /* VBUSEN1 */
- <RZA2_PINMUX(PORT7, 5, 5)>; /* OVRCUR1 */
+ <RZA2_PINMUX(PORTC, 5, 1)>; /* VBUSEN1 */
};
};
};
/* Serial Console */
-&scif4 {
+&scif2 {
pinctrl-names = "default";
- pinctrl-0 = <&scif4_pins>;
+ pinctrl-0 = <&scif2_pins>;
status = "okay";
};