sunxi: add sun7i clocks and timer support.

This patch adds the basic clocks and timer support for the Allwinner A20
(sun7i) processor. This code will not been compiled until the build is hooked
up in a later patch. It has been split out to keep the patches manageable.

Some of the code here is common to multiple sunxi subarchtectures, hence files
are named sun4i which is the earliest similar variant.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net>
Signed-off-by: Jens Kuske <jenskuske@gmail.com>
Signed-off-by: Luke Leighton <lkcl@lkcl.net>
Signed-off-by: Oliver Schinagl <oliver@schinagl.nl>
Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: Stefan Roese <sr@denx.de>
Cc: Tom Cubie <Mr.hipboi@gmail.com>

1 files changed, 88 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-sunxi/timer.h b/arch/arm/include/asm/arch-sunxi/timer.h
new file mode 100644
index 0000000000..6aacfd7b39
--- /dev/null
+++ b/arch/arm/include/asm/arch-sunxi/timer.h
@@ -0,0 +1,88 @@
+/*
+ * (C) Copyright 2007-2011
+ * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
+ * Tom Cubie <tangliang@allwinnertech.com>
+ *
+ * Configuration settings for the Allwinner A10-evb board.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _SUNXI_TIMER_H_
+#define _SUNXI_TIMER_H_
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+
+/* General purpose timer */
+struct sunxi_timer {
+	u32 ctl;
+	u32 inter;
+	u32 val;
+	u8 res[4];
+};
+
+/* Audio video sync*/
+struct sunxi_avs {
+	u32 ctl;		/* 0x80 */
+	u32 cnt0;		/* 0x84 */
+	u32 cnt1;		/* 0x88 */
+	u32 div;		/* 0x8c */
+};
+
+/* 64 bit counter */
+struct sunxi_64cnt {
+	u32 ctl;		/* 0xa0 */
+	u32 lo;			/* 0xa4 */
+	u32 hi;			/* 0xa8 */
+};
+
+/* Watchdog */
+struct sunxi_wdog {
+	u32 ctl;		/* 0x90 */
+	u32 mode;		/* 0x94 */
+};
+
+/* Rtc */
+struct sunxi_rtc {
+	u32 ctl;		/* 0x100 */
+	u32 yymmdd;		/* 0x104 */
+	u32 hhmmss;		/* 0x108 */
+};
+
+/* Alarm */
+struct sunxi_alarm {
+	u32 ddhhmmss;		/* 0x10c */
+	u32 hhmmss;		/* 0x110 */
+	u32 en;			/* 0x114 */
+	u32 irqen;		/* 0x118 */
+	u32 irqsta;		/* 0x11c */
+};
+
+/* Timer general purpose register */
+struct sunxi_tgp {
+	u32 tgpd;
+};
+
+struct sunxi_timer_reg {
+	u32 tirqen;		/* 0x00 */
+	u32 tirqsta;		/* 0x04 */
+	u8 res1[8];
+	struct sunxi_timer timer[6];	/* We have 6 timers */
+	u8 res2[16];
+	struct sunxi_avs avs;
+	struct sunxi_wdog wdog;
+	u8 res3[8];
+	struct sunxi_64cnt cnt64;
+	u8 res4[0x58];
+	struct sunxi_rtc rtc;
+	struct sunxi_alarm alarm;
+	struct sunxi_tgp tgp[4];
+	u8 res5[8];
+	u32 cpu_cfg;
+};
+
+#endif /* __ASSEMBLY__ */
+
+#endif