arm926ejs: add NXP LPC32x0 cpu series support

This change adds initial support for NXP LPC32x0 SoC series.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Acked-by: Marek Vasut <marek.vasut@gmail.com>

1 files changed, 74 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-lpc32xx/timer.h b/arch/arm/include/asm/arch-lpc32xx/timer.h
new file mode 100644
index 000000000..7d637637e
--- /dev/null
+++ b/arch/arm/include/asm/arch-lpc32xx/timer.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2011 by Vladimir Zapolskiy <vz@mleia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA  02110-1301, USA.
+ */
+
+#ifndef _LPC32XX_TIMER_H
+#define _LPC32XX_TIMER_H
+
+#include <asm/types.h>
+
+/* Timer/Counter Registers */
+struct timer_regs {
+	u32 ir;			/* Interrupt Register		*/
+	u32 tcr;		/* Timer Control Register	*/
+	u32 tc;			/* Timer Counter		*/
+	u32 pr;			/* Prescale Register		*/
+	u32 pc;			/* Prescale Counter		*/
+	u32 mcr;		/* Match Control Register	*/
+	u32 mr[4];		/* Match Registers		*/
+	u32 ccr;		/* Capture Control Register	*/
+	u32 cr[4];		/* Capture Registers		*/
+	u32 emr;		/* External Match Register	*/
+	u32 reserved[12];
+	u32 ctcr;		/* Count Control Register	*/
+};
+
+/* Timer/Counter Interrupt Register bits */
+#define TIMER_IR_CR(n)			(1 << ((n) + 4))
+#define TIMER_IR_MR(n)			(1 << (n))
+
+/* Timer/Counter Timer Control Register bits */
+#define TIMER_TCR_COUNTER_RESET		(1 << 1)
+#define TIMER_TCR_COUNTER_ENABLE	(1 << 0)
+#define TIMER_TCR_COUNTER_DISABLE	(0 << 0)
+
+/* Timer/Counter Match Control Register bits */
+#define TIMER_MCR_STOP(n)		(1 << (3 * (n) + 2))
+#define TIMER_MCR_RESET(n)		(1 << (3 * (n) + 1))
+#define TIMER_MCR_INTERRUPT(n)		(1 << (3 * (n)))
+
+/* Timer/Counter Capture Control Register bits */
+#define TIMER_CCR_INTERRUPT(n)		(1 << (3 * (n) + 2))
+#define TIMER_CCR_FALLING_EDGE(n)	(1 << (3 * (n) + 1))
+#define TIMER_CCR_RISING_EDGE(n)	(1 << (3 * (n)))
+
+/* Timer/Counter External Match Register bits */
+#define TIMER_EMR_EMC_TOGGLE(n)		(0x3 << (2 * (n) + 4))
+#define TIMER_EMR_EMC_SET(n)		(0x2 << (2 * (n) + 4))
+#define TIMER_EMR_EMC_CLEAR(n)		(0x1 << (2 * (n) + 4))
+#define TIMER_EMR_EMC_NOTHING(n)	(0x0 << (2 * (n) + 4))
+#define TIMER_EMR_EM(n)			(1 << (n))
+
+/* Timer/Counter Count Control Register bits */
+#define TIMER_CTCR_INPUT(n)		((n) << 2)
+#define TIMER_CTCR_MODE_COUNTER_BOTH	(0x3 << 0)
+#define TIMER_CTCR_MODE_COUNTER_FALLING	(0x2 << 0)
+#define TIMER_CTCR_MODE_COUNTER_RISING	(0x1 << 0)
+#define TIMER_CTCR_MODE_TIMER		(0x0 << 0)
+
+#endif /* _LPC32XX_TIMER_H */