diff options
Diffstat (limited to 'arch/arm/mach-ns9xxx/processor-ns9360.c')
-rw-r--r-- | arch/arm/mach-ns9xxx/processor-ns9360.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/arm/mach-ns9xxx/processor-ns9360.c b/arch/arm/mach-ns9xxx/processor-ns9360.c new file mode 100644 index 000000000000..2bee0b7fccbb --- /dev/null +++ b/arch/arm/mach-ns9xxx/processor-ns9360.c @@ -0,0 +1,54 @@ +/* + * arch/arm/mach-ns9xxx/processor-ns9360.c + * + * 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. + */ +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/slab.h> + +#include <asm/page.h> +#include <asm/mach/map.h> +#include <asm/arch-ns9xxx/processor-ns9360.h> +#include <asm/arch-ns9xxx/regs-sys-ns9360.h> + +void ns9360_reset(char mode) +{ + u32 reg; + + reg = __raw_readl(SYS_PLL) >> 16; + REGSET(reg, SYS_PLL, SWC, YES); + __raw_writel(reg, SYS_PLL); +} + +#define CRYSTAL 29491200 /* Hz */ +unsigned long ns9360_systemclock(void) +{ + u32 pll = __raw_readl(SYS_PLL); + return CRYSTAL * (REGGETIM(pll, SYS_PLL, ND) + 1) + >> REGGETIM(pll, SYS_PLL, FS); +} + +static struct map_desc ns9360_io_desc[] __initdata = { + { /* BBus */ + .virtual = io_p2v(0x90000000), + .pfn = __phys_to_pfn(0x90000000), + .length = 0x00700000, + .type = MT_DEVICE, + }, { /* AHB */ + .virtual = io_p2v(0xa0100000), + .pfn = __phys_to_pfn(0xa0100000), + .length = 0x00900000, + .type = MT_DEVICE, + }, +}; + +void __init ns9360_map_io(void) +{ + iotable_init(ns9360_io_desc, ARRAY_SIZE(ns9360_io_desc)); +} |