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Implement udelay() for D2 and remove the old hacks from USB & FM drivers.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20417 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rob Purchase 2009-03-20 23:14:05 +00:00
parent fe064db965
commit 343c3b795a
4 changed files with 13 additions and 12 deletions
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7
firmware/drivers/tuner/lv24020lp.c
View file

@ -75,12 +75,11 @@ static int fd_log = -1;
#define FM_CLOCK_PIN 5
#define FM_DATA_PIN 6
#define FM_NRW_PIN 7
//#define udelay(x) /* Remove hack when D2 has udelay */
/* Remove hack when i7 has udelay */
static void udelay(int usecs)
{
while (usecs--)
asm("nop;nop;");
asm("nop;nop;");
}
#elif defined(COWON_D2)
@ -90,7 +89,7 @@ static void udelay(int usecs)
#define FM_NRW_PIN 31
#define FM_CLOCK_PIN 29
#define FM_DATA_PIN 30
#define udelay(x) /* Remove hack when D2 has udelay */
#else
#error GPIOs undefined for this target
#endif

7
firmware/target/arm/tcc780x/system-target.h
View file

@ -34,4 +34,11 @@
#define inw(a) (*(volatile unsigned short *) (a))
#define outw(a,b) (*(volatile unsigned short *) (b) = (a))
/* TC32 is configured to 1MHz in clock_init() */
static inline void udelay(unsigned usecs)
{
unsigned stop = TC32MCNT + usecs;
while (TIME_BEFORE(TC32MCNT, stop));
}
#endif /* SYSTEM_TARGET_H */

3
firmware/target/arm/tcc780x/system-tcc780x.c
View file

@ -231,6 +231,9 @@ static void clock_init(void)
/* configure PCK_TCT to 2Mhz (clock source 4 (Xin) divided by 6) */
PCLK_TCT = PCK_EN | (CKSEL_XIN<<24) | 5;
/* set TC32 timer to XIN divided by 12 (1MHz) */
TC32EN = (1<<24) | 11;
}
#endif

8
firmware/target/arm/usb-tcc.c
View file

@ -133,14 +133,6 @@ void usb_drv_release_endpoint(int ep)
restore_irq(flags);
}
static void udelay(unsigned long msecs)
{
/* TODO: implement me other way */
msecs*=126;
while (msecs--)
asm("nop;");
}
static inline void pullup_on(void)
{
TCC7xx_USB_PHY_CFG = 0x000c;