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Diffstat (limited to 'include/asm-arm/arch-ns9xxx/clock.h')
-rw-r--r--include/asm-arm/arch-ns9xxx/clock.h71
1 files changed, 0 insertions, 71 deletions
diff --git a/include/asm-arm/arch-ns9xxx/clock.h b/include/asm-arm/arch-ns9xxx/clock.h
deleted file mode 100644
index b943d3a92a1..00000000000
--- a/include/asm-arm/arch-ns9xxx/clock.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * include/asm-arm/arch-ns9xxx/clock.h
- *
- * Copyright (C) 2007 by Digi International Inc.
- * All rights reserved.
- *
- * 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.
- */
-#ifndef __ASM_ARCH_CLOCK_H
-#define __ASM_ARCH_CLOCK_H
-
-#include <asm/arch-ns9xxx/regs-sys.h>
-
-#define CRYSTAL 29491200 /* Hz */
-
-/* The HRM calls this value f_vco */
-static inline u32 ns9xxx_systemclock(void) __attribute__((const));
-static inline u32 ns9xxx_systemclock(void)
-{
- u32 pll = __raw_readl(SYS_PLL);
-
- /*
- * The system clock should be a multiple of HZ * TIMERCLOCKSELECT (in
- * time.c).
- *
- * The following values are given:
- * - TIMERCLOCKSELECT == 2^i for an i in {0 .. 6}
- * - CRYSTAL == 29491200 == 2^17 * 3^2 * 5^2
- * - ND in {0 .. 31}
- * - FS in {0 .. 3}
- *
- * Assuming the worst, we consider:
- * - TIMERCLOCKSELECT == 64
- * - ND == 0
- * - FS == 3
- *
- * So HZ should be a divisor of:
- * (CRYSTAL * (ND + 1) >> FS) / TIMERCLOCKSELECT
- * == (2^17 * 3^2 * 5^2 * 1 >> 3) / 64
- * == 2^8 * 3^2 * 5^2
- * == 57600
- *
- * Currently HZ is defined to be 100 for this platform.
- *
- * Fine.
- */
- return CRYSTAL * (REGGETIM(pll, SYS_PLL, ND) + 1)
- >> REGGETIM(pll, SYS_PLL, FS);
-}
-
-static inline u32 ns9xxx_cpuclock(void) __attribute__((const));
-static inline u32 ns9xxx_cpuclock(void)
-{
- return ns9xxx_systemclock() / 2;
-}
-
-static inline u32 ns9xxx_ahbclock(void) __attribute__((const));
-static inline u32 ns9xxx_ahbclock(void)
-{
- return ns9xxx_systemclock() / 4;
-}
-
-static inline u32 ns9xxx_bbusclock(void) __attribute__((const));
-static inline u32 ns9xxx_bbusclock(void)
-{
- return ns9xxx_systemclock() / 8;
-}
-
-#endif /* ifndef __ASM_ARCH_CLOCK_H */