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>
Reviewed-by: Tom Rini <trini@ti.com>

1 files changed, 29 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-sunxi/clock.h b/arch/arm/include/asm/arch-sunxi/clock.h
new file mode 100644
index 0000000000..5669f392fa
--- /dev/null
+++ b/arch/arm/include/asm/arch-sunxi/clock.h
@@ -0,0 +1,29 @@
+/*
+ * (C) Copyright 2007-2011
+ * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
+ * Tom Cubie <tangliang@allwinnertech.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _SUNXI_CLOCK_H
+#define _SUNXI_CLOCK_H
+
+#include <linux/types.h>
+
+#define CLK_GATE_OPEN			0x1
+#define CLK_GATE_CLOSE			0x0
+
+/* clock control module regs definition */
+#include <asm/arch/clock_sun4i.h>
+
+#ifndef __ASSEMBLY__
+int clock_init(void);
+int clock_twi_onoff(int port, int state);
+void clock_set_pll1(unsigned int hz);
+unsigned int clock_get_pll6(void);
+void clock_init_safe(void);
+void clock_init_uart(void);
+#endif
+
+#endif /* _SUNXI_CLOCK_H */