Re: [PATCH] ARM: at91: add Acme Systems Aria G25 board
From: Douglas Gilbert
Date: Mon Mar 25 2013 - 08:34:39 EST
On 13-03-25 08:22 AM, Jean-Christophe PLAGNIOL-VILLARD wrote:
On 09:49 Mon 25 Mar , Nicolas Ferre wrote:
From: Douglas Gilbert <dgilbert@xxxxxxxxxxxx>
Signed-off-by: Douglas Gilbert <dgilbert@xxxxxxxxxxxx>
Signed-off-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
---
arch/arm/boot/dts/ariag25.dts | 168 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 168 insertions(+)
create mode 100644 arch/arm/boot/dts/ariag25.dts
diff --git a/arch/arm/boot/dts/ariag25.dts b/arch/arm/boot/dts/ariag25.dts
new file mode 100644
index 0000000..d18ef50
--- /dev/null
+++ b/arch/arm/boot/dts/ariag25.dts
@@ -0,0 +1,168 @@
+/*
+ * ariag25.dts - Device Tree file for Acme Systems Aria G25 (AT91SAM9G25 based)
+ *
+ * Copyright (C) 2013 Douglas Gilbert <dgilbert@xxxxxxxxxxxx>,
+ * Robert Nelson <robertcnelson@xxxxxxxxx>
+ *
+ * Licensed under GPLv2 or later.
+ */
+/dts-v1/;
+/include/ "at91sam9g25.dtsi"
+
+/ {
+ model = "Acme Systems Aria G25";
+ compatible = "acme,ariag25", "atmel,at91sam9g25ek", "atmel,at91sam9x5ek",
+ "atmel,at91sam9x5", "atmel,at91sam9";
I doube the code is compatible with the 9g25ek
specially when you do not include it
+
+ aliases {
+ serial4 = &usart3;
+ serial5 = &uart0;
+ };
you need to specify all
+
+ chosen {
+ bootargs = "console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait";
+ };
+
+ memory {
+ /* 128 MB, change this for 256 MB revision */
+ reg = <0x20000000 0x8000000>;
+ };
+
+ clocks {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ main_clock: clock@0 {
+ compatible = "atmel,osc", "fixed-clock";
+ clock-frequency = <12000000>;
+ };
+ };
+
+ ahb {
+ apb {
+ mmc0: mmc@f0008000 {
+ /* N.B. Aria has no SD card detect (CD), assumed present */
+
+ pinctrl-0 = <
+ &pinctrl_mmc0_slot0_clk_cmd_dat0
+ &pinctrl_mmc0_slot0_dat1_3>;
+ status = "okay";
+ slot@0 {
+ reg = <0>;
+ bus-width = <4>;
+ };
+ };
+
+ i2c0: i2c@f8010000 {
+ status = "okay";
+ };
+
+ i2c1: i2c@f8014000 {
+ status = "okay";
+ };
+
+ /* TWD2+TCLK2 hidden behind ethernet, so no i2c2 */
+
+ usart0: serial@f801c000 {
+ pinctrl-0 = <&pinctrl_usart0
+ &pinctrl_usart0_rts
+ &pinctrl_usart0_cts>;
+ status = "okay";
+ };
+
+ usart1: serial@f8020000 {
+ pinctrl-0 = <&pinctrl_usart1
+ /* &pinctrl_usart1_rts */
+ /* &pinctrl_usart1_cts */
+ >;
+ status = "okay";
+ };
+
+ usart2: serial@f8024000 {
+ /* cannot activate RTS2+CTS2, clash with
+ * ethernet on PB0 and PB1 */
+ pinctrl-0 = <&pinctrl_usart2>;
+ status = "okay";
+ };
+
+ usart3: serial@f8028000 {
+ compatible = "atmel,at91sam9260-usart";
+ reg = <0xf8028000 0x200>;
+ interrupts = <8 4 5>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usart3
+ /* &pinctrl_usart3_rts */
+ /* &pinctrl_usart3_cts */
+ >;
+ status = "okay";
+ };
+
+ macb0: ethernet@f802c000 {
+ phy-mode = "rmii";
+ /* following can be overwritten by uboot 'ftd set' command */
+ local-mac-address = [00 04 25 dd 10 01];
drop this, this is board specific
+ status = "okay";
Why not leave it but change the data to 00 00 00 00 00 00.
It is a useful technique and really hard to find.
Trying to find a Linux embedded system with an IP address
the jumps around (because it finds a 00 00 00 00 00 00 MAC
address) can be very frustrating. Showing folks where they
can give a non-NULL MAC address may save a lot of frustration.
Doug Gilbert
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