projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 724ce5ee UKK |
1 | /* |
| 2 | * arch/arm/mach-ns9xxx/processor-ns9360.c | |
| 3 | * | |
| 4 | * Copyright (C) 2007 by Digi International Inc. | |
| 5 | * All rights reserved. | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify it | |
| 8 | * under the terms of the GNU General Public License version 2 as published by | |
| 9 | * the Free Software Foundation. | |
| 10 | */ | |
| 11 | #include <linux/io.h> | |
| 12 | #include <linux/kernel.h> | |
| 724ce5ee UKK |
13 | |
| 14 | #include <asm/page.h> | |
| 15 | #include <asm/mach/map.h> | |
| a09e64fb RK |
16 | #include <mach/processor-ns9360.h> |
| 17 | #include <mach/regs-sys-ns9360.h> | |
| 724ce5ee UKK |
18 | |
| 19 | void ns9360_reset(char mode) | |
| 20 | { | |
| 21 | u32 reg; | |
| 22 | ||
| 23 | reg = __raw_readl(SYS_PLL) >> 16; | |
| 24 | REGSET(reg, SYS_PLL, SWC, YES); | |
| 25 | __raw_writel(reg, SYS_PLL); | |
| 26 | } | |
| 27 | ||
| 28 | #define CRYSTAL 29491200 /* Hz */ | |
| 29 | unsigned long ns9360_systemclock(void) | |
| 30 | { | |
| 31 | u32 pll = __raw_readl(SYS_PLL); | |
| 32 | return CRYSTAL * (REGGETIM(pll, SYS_PLL, ND) + 1) | |
| 33 | >> REGGETIM(pll, SYS_PLL, FS); | |
| 34 | } | |
| 35 | ||
| 36 | static struct map_desc ns9360_io_desc[] __initdata = { | |
| 37 | { /* BBus */ | |
| 38 | .virtual = io_p2v(0x90000000), | |
| 39 | .pfn = __phys_to_pfn(0x90000000), | |
| 40 | .length = 0x00700000, | |
| 41 | .type = MT_DEVICE, | |
| 42 | }, { /* AHB */ | |
| 43 | .virtual = io_p2v(0xa0100000), | |
| 44 | .pfn = __phys_to_pfn(0xa0100000), | |
| 45 | .length = 0x00900000, | |
| 46 | .type = MT_DEVICE, | |
| 47 | }, | |
| 48 | }; | |
| 49 | ||
| 50 | void __init ns9360_map_io(void) | |
| 51 | { | |
| 52 | iotable_init(ns9360_io_desc, ARRAY_SIZE(ns9360_io_desc)); | |
| 53 | } |