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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-06 16:20:10 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-06 16:20:10 -0400
commitc6799ade4ae04b53a5f677e5289116155ff01574 (patch)
tree3601b5e2387e39d62c207e4268c6cc5c68f2a364 /include/asm-arm/arch-iop13xx/time.h
parentb7405e16435f710edfae6ba32bef4ca20d3de145 (diff)
parent5cd47155155a32e5b944ac9fc3f3dc578e429aa0 (diff)
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (82 commits) [ARM] Add comments marking in-use ptrace numbers [ARM] Move syscall saving out of the way of utrace [ARM] 4360/1: S3C24XX: regs-udc.h remove unused macro [ARM] 4358/1: S3C24XX: mach-qt2410.c: remove linux/mmc/protocol.h header [ARM] mm 10: allow memory type to be specified with ioremap [ARM] mm 9: add additional device memory types [ARM] mm 8: define mem_types table L1 bit 4 to be for ARMv6 [ARM] iop: add missing parens in macro [ARM] mm 7: remove duplicated __ioremap() prototypes ARM: OMAP: fix OMAP1 mpuio suspend/resume oops ARM: OMAP: MPUIO wake updates ARM: OMAP: speed up gpio irq handling ARM: OMAP: plat-omap changes for 2430 SDP ARM: OMAP: gpio object shrinkage, cleanup ARM: OMAP: /sys/kernel/debug/omap_gpio ARM: OMAP: Implement workaround for GPIO wakeup bug in OMAP2420 silicon ARM: OMAP: Enable 24xx GPIO autoidling [ARM] 4318/2: DSM-G600 Board Support [ARM] 4227/1: minor head.S fixups [ARM] 4328/1: Move i.MX UART regs to driver ...
Diffstat (limited to 'include/asm-arm/arch-iop13xx/time.h')
-rw-r--r--include/asm-arm/arch-iop13xx/time.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/include/asm-arm/arch-iop13xx/time.h b/include/asm-arm/arch-iop13xx/time.h
index 77a837a02dec..49213d9d7cad 100644
--- a/include/asm-arm/arch-iop13xx/time.h
+++ b/include/asm-arm/arch-iop13xx/time.h
@@ -7,9 +7,65 @@
7#define IOP_TMR_PRIVILEGED 0x08 7#define IOP_TMR_PRIVILEGED 0x08
8#define IOP_TMR_RATIO_1_1 0x00 8#define IOP_TMR_RATIO_1_1 0x00
9 9
10#define IOP13XX_XSI_FREQ_RATIO_MASK (3 << 19)
11#define IOP13XX_XSI_FREQ_RATIO_2 (0 << 19)
12#define IOP13XX_XSI_FREQ_RATIO_3 (1 << 19)
13#define IOP13XX_XSI_FREQ_RATIO_4 (2 << 19)
14#define IOP13XX_CORE_FREQ_MASK (7 << 16)
15#define IOP13XX_CORE_FREQ_600 (0 << 16)
16#define IOP13XX_CORE_FREQ_667 (1 << 16)
17#define IOP13XX_CORE_FREQ_800 (2 << 16)
18#define IOP13XX_CORE_FREQ_933 (3 << 16)
19#define IOP13XX_CORE_FREQ_1000 (4 << 16)
20#define IOP13XX_CORE_FREQ_1200 (5 << 16)
21
10void iop_init_time(unsigned long tickrate); 22void iop_init_time(unsigned long tickrate);
11unsigned long iop_gettimeoffset(void); 23unsigned long iop_gettimeoffset(void);
12 24
25static inline unsigned long iop13xx_core_freq(void)
26{
27 unsigned long freq = __raw_readl(IOP13XX_PROCESSOR_FREQ);
28 freq &= IOP13XX_CORE_FREQ_MASK;
29 switch (freq) {
30 case IOP13XX_CORE_FREQ_600:
31 return 600000000;
32 case IOP13XX_CORE_FREQ_667:
33 return 667000000;
34 case IOP13XX_CORE_FREQ_800:
35 return 800000000;
36 case IOP13XX_CORE_FREQ_933:
37 return 933000000;
38 case IOP13XX_CORE_FREQ_1000:
39 return 1000000000;
40 case IOP13XX_CORE_FREQ_1200:
41 return 1200000000;
42 default:
43 printk("%s: warning unknown frequency, defaulting to 800Mhz\n",
44 __FUNCTION__);
45 }
46
47 return 800000000;
48}
49
50static inline unsigned long iop13xx_xsi_bus_ratio(void)
51{
52 unsigned long ratio = __raw_readl(IOP13XX_PROCESSOR_FREQ);
53 ratio &= IOP13XX_XSI_FREQ_RATIO_MASK;
54 switch (ratio) {
55 case IOP13XX_XSI_FREQ_RATIO_2:
56 return 2;
57 case IOP13XX_XSI_FREQ_RATIO_3:
58 return 3;
59 case IOP13XX_XSI_FREQ_RATIO_4:
60 return 4;
61 default:
62 printk("%s: warning unknown ratio, defaulting to 2\n",
63 __FUNCTION__);
64 }
65
66 return 2;
67}
68
13static inline void write_tmr0(u32 val) 69static inline void write_tmr0(u32 val)
14{ 70{
15 asm volatile("mcr p6, 0, %0, c0, c9, 0" : : "r" (val)); 71 asm volatile("mcr p6, 0, %0, c0, c9, 0" : : "r" (val));