ARM: at91: add at91sam9g20 and Calao USB A9G20 DT support

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>

5 files changed, 159 insertions, 1 deletions

diff --git a/arch/arm/boot/dts/at91sam9g20.dtsi b/arch/arm/boot/dts/at91sam9g20.dtsi
new file mode 100644
index 000000000000..aeef04269cf8
--- /dev/null
+++ b/arch/arm/boot/dts/at91sam9g20.dtsi
@@ -0,0 +1,119 @@
+/*
+ * at91sam9g20.dtsi - Device Tree Include file for AT91SAM9G20 family SoC
+ *
+ *  Copyright (C) 2011 Atmel,
+ *                2011 Nicolas Ferre <nicolas.ferre@atmel.com>,
+ *                2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+/include/ "skeleton.dtsi"
+
+/ {
+        model = "Atmel AT91SAM9G20 family SoC";
+        compatible = "atmel,at91sam9g20";
+        interrupt-parent = <&aic>;
+
+        aliases {
+                serial0 = &dbgu;
+                serial1 = &usart0;
+                serial2 = &usart1;
+                serial3 = &usart2;
+                serial4 = &usart3;
+                serial5 = &usart4;
+                serial6 = &usart5;
+        };
+        cpus {
+                cpu@0 {
+                        compatible = "arm,arm926ejs";
+                };
+        };
+
+        memory@20000000 {
+                reg = <0x20000000 0x08000000>;
+        };
+
+        ahb {
+                compatible = "simple-bus";
+                #address-cells = <1>;
+                #size-cells = <1>;
+                ranges;
+
+                apb {
+                        compatible = "simple-bus";
+                        #address-cells = <1>;
+                        #size-cells = <1>;
+                        ranges;
+
+                        aic: interrupt-controller@fffff000 {
+                                #interrupt-cells = <1>;
+                                compatible = "atmel,at91rm9200-aic";
+                                interrupt-controller;
+                                interrupt-parent;
+                                reg = <0xfffff000 0x200>;
+                        };
+
+                        dbgu: serial@fffff200 {
+                                compatible = "atmel,at91sam9260-usart";
+                                reg = <0xfffff200 0x200>;
+                                interrupts = <1>;
+                                status = "disabled";
+                        };
+
+                        usart0: serial@fffb0000 {
+                                compatible = "atmel,at91sam9260-usart";
+                                reg = <0xfffb0000 0x200>;
+                                interrupts = <6>;
+                                atmel,use-dma-rx;
+                                atmel,use-dma-tx;
+                                status = "disabled";
+                        };
+
+                        usart1: serial@fffb4000 {
+                                compatible = "atmel,at91sam9260-usart";
+                                reg = <0xfffb4000 0x200>;
+                                interrupts = <7>;
+                                atmel,use-dma-rx;
+                                atmel,use-dma-tx;
+                                status = "disabled";
+                        };
+
+                        usart2: serial@fffb8000 {
+                                compatible = "atmel,at91sam9260-usart";
+                                reg = <0xfffb8000 0x200>;
+                                interrupts = <8>;
+                                atmel,use-dma-rx;
+                                atmel,use-dma-tx;
+                                status = "disabled";
+                        };
+
+                        usart3: serial@fffd0000 {
+                                compatible = "atmel,at91sam9260-usart";
+                                reg = <0xfffd0000 0x200>;
+                                interrupts = <23>;
+                                atmel,use-dma-rx;
+                                atmel,use-dma-tx;
+                                status = "disabled";
+                        };
+
+                        usart4: serial@fffd4000 {
+                                compatible = "atmel,at91sam9260-usart";
+                                reg = <0xfffd4000 0x200>;
+                                interrupts = <24>;
+                                atmel,use-dma-rx;
+                                atmel,use-dma-tx;
+                                status = "disabled";
+                        };
+
+                        usart5: serial@fffd8000 {
+                                compatible = "atmel,at91sam9260-usart";
+                                reg = <0xfffd8000 0x200>;
+                                interrupts = <25>;
+                                atmel,use-dma-rx;
+                                atmel,use-dma-tx;
+                                status = "disabled";
+                        };
+                };
+        };
+};
diff --git a/arch/arm/boot/dts/usb_a9g20.dts b/arch/arm/boot/dts/usb_a9g20.dts
new file mode 100644
index 000000000000..d66e2c00ac35
--- /dev/null
+++ b/arch/arm/boot/dts/usb_a9g20.dts
@@ -0,0 +1,30 @@
+/*
+ * usb_a9g20.dts - Device Tree file for Caloa USB A9G20 board
+ *
+ *  Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * Licensed under GPLv2 or later.
+ */
+/dts-v1/;
+/include/ "at91sam9g20.dtsi"
+
+/ {
+        model = "Calao USB A9G20";
+        compatible = "calao,usb-a9g20", "atmel,at91sam9g20", "atmel,at91sam9";
+
+        chosen {
+                bootargs = "mem=64M console=ttyS0,115200 mtdparts=atmel_nand:128k(at91bootstrap),256k(barebox)ro,128k(bareboxenv),128k(bareboxenv2),4M(kernel),120M(rootfs),-(data) root=/dev/mtdblock5 rw rootfstype=ubifs";
+        };
+
+        memory@20000000 {
+                reg = <0x20000000 0x4000000>;
+        };
+
+        ahb {
+                apb {
+                        dbgu: serial@fffff200 {
+                                status = "okay";
+                        };
+                };
+        };
+};
diff --git a/arch/arm/mach-at91/Makefile.boot b/arch/arm/mach-at91/Makefile.boot
index d2788636805c..08c665affde4 100644
--- a/arch/arm/mach-at91/Makefile.boot
+++ b/arch/arm/mach-at91/Makefile.boot
@@ -17,4 +17,4 @@ params_phys-y	:= 0x20000100
 initrd_phys-y   := 0x20410000
 endif
 
-dtb-$(CONFIG_MACH_AT91SAM_DT) += at91sam9m10g45ek.dtb
+dtb-$(CONFIG_MACH_AT91SAM_DT) += at91sam9m10g45ek.dtb usb_a9g20.dtb
diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c
index cb397be14448..f4518b49cb82 100644
--- a/arch/arm/mach-at91/at91sam9260.c
+++ b/arch/arm/mach-at91/at91sam9260.c
@@ -199,6 +199,14 @@ static struct clk_lookup periph_clocks_lookups[] = {
         CLKDEV_CON_DEV_ID("t4_clk", "atmel_tcb.1", &tc4_clk),
         CLKDEV_CON_DEV_ID("t5_clk", "atmel_tcb.1", &tc5_clk),
         CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc_clk),
+        /* more usart lookup table for DT entries */
+        CLKDEV_CON_DEV_ID("usart", "fffff200.serial", &mck),
+        CLKDEV_CON_DEV_ID("usart", "fffb0000.serial", &usart0_clk),
+        CLKDEV_CON_DEV_ID("usart", "fffb4000.serial", &usart1_clk),
+        CLKDEV_CON_DEV_ID("usart", "fffb8000.serial", &usart2_clk),
+        CLKDEV_CON_DEV_ID("usart", "fffd0000.serial", &usart3_clk),
+        CLKDEV_CON_DEV_ID("usart", "fffd4000.serial", &usart4_clk),
+        CLKDEV_CON_DEV_ID("usart", "fffd8000.serial", &usart5_clk),
 };
 
 static struct clk_lookup usart_clocks_lookups[] = {
diff --git a/arch/arm/mach-at91/board-dt.c b/arch/arm/mach-at91/board-dt.c
index 33a0d8b549b4..0b7d32778210 100644
--- a/arch/arm/mach-at91/board-dt.c
+++ b/arch/arm/mach-at91/board-dt.c
@@ -108,6 +108,7 @@ static void __init at91_dt_device_init(void)
 
 static const char *at91_dt_board_compat[] __initdata = {
         "atmel,at91sam9m10g45ek",
+        "calao,usb-a9g20",
         NULL
 };