ARM: DIGIC: add Canon PowerShot A1100 IS support

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

5 files changed, 67 insertions, 0 deletions

diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile
index d200512758..e195870439 100644
--- a/arch/arm/boards/Makefile
+++ b/arch/arm/boards/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_MACH_AT91SAM9N12EK)		+= at91sam9n12ek/
 obj-$(CONFIG_MACH_AT91SAM9X5EK)			+= at91sam9x5ek/
 obj-$(CONFIG_MACH_BEAGLE)			+= beagle/
 obj-$(CONFIG_MACH_BEAGLEBONE)			+= beaglebone/
+obj-$(CONFIG_MACH_CANON_A1100)			+= canon-a1100/
 obj-$(CONFIG_MACH_NITROGEN6X)			+= boundarydevices-nitrogen6x/
 obj-$(CONFIG_MACH_CCMX51)			+= ccxmx51/
 obj-$(CONFIG_MACH_CFA10036)			+= crystalfontz-cfa10036/
diff --git a/arch/arm/boards/canon-a1100/Makefile b/arch/arm/boards/canon-a1100/Makefile
new file mode 100644
index 0000000000..b08c4a93ca
--- /dev/null
+++ b/arch/arm/boards/canon-a1100/Makefile
@@ -0,0 +1 @@
+lwl-y += lowlevel.o
diff --git a/arch/arm/boards/canon-a1100/lowlevel.c b/arch/arm/boards/canon-a1100/lowlevel.c
new file mode 100644
index 0000000000..bbae825661
--- /dev/null
+++ b/arch/arm/boards/canon-a1100/lowlevel.c
@@ -0,0 +1,23 @@
+#include <common.h>
+#include <sizes.h>
+#include <asm/barebox-arm-head.h>
+#include <asm/barebox-arm.h>
+
+void __naked barebox_arm_reset_vector(void)
+{
+	arm_cpu_lowlevel_init();
+
+	/* FIXME: can we determine RAM size using CP15 register?
+	 *
+	 * see http://chdk.setepontos.com/index.php?topic=5980.90
+	 *
+	 * http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0363e/Bgbcdeca.html
+	 * 4.2.19. c6, MPU memory region programming registers
+	 *
+	 * But the 'cpuinfo' command says that the Protection
+	 * unit is disabled.
+	 * The Control Register value (mrc    p15, 0, %0, c0, c1, 4)
+	 * is 0x00051078.
+	 */
+	barebox_arm_entry(0x0, SZ_64M, 0);
+}
diff --git a/arch/arm/dts/canon-a1100.dts b/arch/arm/dts/canon-a1100.dts
new file mode 100644
index 0000000000..a88eacf4d4
--- /dev/null
+++ b/arch/arm/dts/canon-a1100.dts
@@ -0,0 +1,35 @@
+/dts-v1/;
+
+/include/ "digic4.dtsi"
+
+/ {
+	model = "Canon PowerShot A1100 IS";
+	compatible = "canon,a1100";
+
+	memory {
+		reg = <0x00000000 0x04000000>;
+	};
+
+	flash@f8000000 {
+		compatible = "cfi-flash";
+		reg = <0xf8000000 0x08000000>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		direct_print {
+			label = "direct-print (blue)";
+			gpios = <&gpio 51 0>;
+		};
+
+		auto_focus {
+			label = "auto-focus (red)";
+			gpios = <&gpio 55 0>;
+		};
+	};
+};
+
+&timer2 {
+        status = "okay";
+};
diff --git a/arch/arm/mach-digic/Kconfig b/arch/arm/mach-digic/Kconfig
index 49ce44a07e..d25c3b3f51 100644
--- a/arch/arm/mach-digic/Kconfig
+++ b/arch/arm/mach-digic/Kconfig
@@ -3,6 +3,13 @@ if ARCH_DIGIC
 choice
 	prompt "camera type"
 
+config MACH_CANON_A1100
+	bool "Canon PowerShot A1100 IS"
+
 endchoice
 
+config ARCH_TEXT_BASE
+	hex
+	default 0x00001900 if MACH_CANON_A1100
+
 endif