V4L/DVB (11350): Add camera (CSI) driver for MX1

Add support for CMOS Sensor Interface on i.MX1 and i.MXL SoCs.

 create mode 100644 arch/arm/mach-mx1/ksym_mx1.c
 create mode 100644 arch/arm/mach-mx1/mx1_camera_fiq.S
 create mode 100644 arch/arm/plat-mxc/include/mach/mx1_camera.h
 create mode 100644 drivers/media/video/mx1_camera.c

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/arch/arm/mach-mx1/mx1_camera_fiq.S b/arch/arm/mach-mx1/mx1_camera_fiq.S
new file mode 100644
index 000000000000..9c69aa65bf17
--- /dev/null
+++ b/arch/arm/mach-mx1/mx1_camera_fiq.S
@@ -0,0 +1,35 @@
+/*
+ *  Copyright (C) 2008 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *
+ *  Based on linux/arch/arm/lib/floppydma.S
+ *      Copyright (C) 1995, 1996 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+
+                .text
+                .global mx1_camera_sof_fiq_end
+                .global mx1_camera_sof_fiq_start
+mx1_camera_sof_fiq_start:
+                @ enable dma
+                ldr     r12, [r9]
+                orr     r12, r12, #0x00000001
+                str     r12, [r9]
+                @ unmask DMA interrupt
+                ldr     r12, [r8]
+                bic     r12, r12, r13
+                str     r12, [r8]
+                @ disable SOF interrupt
+                ldr     r12, [r10]
+                bic     r12, r12, #0x00010000
+                str     r12, [r10]
+                @ clear SOF flag
+                mov     r12, #0x00010000
+                str     r12, [r11]
+                @ return from FIQ
+                subs    pc, lr, #4
+mx1_camera_sof_fiq_end: