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Code

clockcheck

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This commit is contained in:
Bas Wijnen 2009-07-02 17:24:26 +02:00
parent bfc65c7e9a
commit d136712524
2 changed files with 104 additions and 0 deletions
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2
mips/init.ccp
View File

@ -255,6 +255,8 @@ void init ():
GPIO_GPDIR (GPIO_USB_CLK_EN_PORT) |= 1 << GPIO_USB_CLK_EN
GPIO_GPDR (GPIO_USB_CLK_EN_PORT) |= 1 << GPIO_USB_CLK_EN
dbg_send (cpm_get_pllout ())
// Start the operating system timer.
unsigned latch = (JZ_EXTAL + (HZ>>1)) / HZ
ost_set_mode (0, OST_TCSR_UIE | OST_TCSR_CKS_EXTAL)

102
mips/jz4730.hhp
View File

@ -3888,6 +3888,108 @@ static __inline__ void cpm_select_msc_clk (bool type):
#define cpm_stop_uprt() (CPM_MSCR |= (1 << CPM_MSCR_MSTP_UPRT))
#define cpm_stop_all() (CPM_MSCR = 0xffffffff)
static __inline__ unsigned cpm_get_pllout ():
unsigned int nf, nr, no, pllout
unsigned long plcr = CPM_PLCR1
unsigned long od[4] = {1, 2, 2, 4}
if plcr & CPM_PLCR1_PLL1EN:
nf = (plcr & CPM_PLCR1_PLL1FD_MASK) >> CPM_PLCR1_PLL1FD_BIT
nr = (plcr & CPM_PLCR1_PLL1RD_MASK) >> CPM_PLCR1_PLL1RD_BIT
no = od[((plcr & CPM_PLCR1_PLL1OD_MASK) >> CPM_PLCR1_PLL1OD_BIT)]
pllout = (JZ_EXTAL) / ((nr + 2) * no) * (nf + 2)
else:
pllout = JZ_EXTAL
return pllout
static __inline__ unsigned cpm_get_iclk ():
unsigned int iclk
int div[] = {1, 2, 3, 4, 6, 8, 12, 16, 24, 32}
unsigned long cfcr = CPM_CFCR
unsigned long plcr = CPM_PLCR1
if plcr & CPM_PLCR1_PLL1EN:
iclk = cpm_get_pllout () / div[(cfcr & CPM_CFCR_IFR_MASK) >> CPM_CFCR_IFR_BIT]
else:
iclk = JZ_EXTAL
return iclk
static __inline__ unsigned cpm_get_sclk ():
unsigned int sclk
int div[] = {1, 2, 3, 4, 6, 8, 12, 16, 24, 32}
unsigned long cfcr = CPM_CFCR
unsigned long plcr = CPM_PLCR1
if plcr & CPM_PLCR1_PLL1EN:
sclk = cpm_get_pllout () / div[(cfcr & CPM_CFCR_SFR_MASK) >> CPM_CFCR_SFR_BIT]
else:
sclk = JZ_EXTAL
return sclk
static __inline__ unsigned cpm_get_mclk ():
unsigned int mclk
int div[] = {1, 2, 3, 4, 6, 8, 12, 16, 24, 32}
unsigned long cfcr = CPM_CFCR
unsigned long plcr = CPM_PLCR1
if plcr & CPM_PLCR1_PLL1EN:
mclk = cpm_get_pllout () / div[(cfcr & CPM_CFCR_MFR_MASK) >> CPM_CFCR_MFR_BIT]
else
mclk = JZ_EXTAL
return mclk
static __inline__ unsigned cpm_get_pclk ():
unsigned int devclk
int div[] = {1, 2, 3, 4, 6, 8, 12, 16, 24, 32}
unsigned long cfcr = CPM_CFCR
unsigned long plcr = CPM_PLCR1
if plcr & CPM_PLCR1_PLL1EN:
devclk = cpm_get_pllout () / div[(cfcr & CPM_CFCR_PFR_MASK) >> CPM_CFCR_PFR_BIT]
else:
devclk = JZ_EXTAL
return devclk
static __inline__ unsigned cpm_get_lcdclk ():
unsigned int lcdclk
unsigned long cfcr = CPM_CFCR
unsigned long plcr = CPM_PLCR1
if plcr & CPM_PLCR1_PLL1EN:
lcdclk = cpm_get_pllout () / (((cfcr & CPM_CFCR_LFR_MASK) >> CPM_CFCR_LFR_BIT) + 1)
else:
lcdclk = JZ_EXTAL
return lcdclk
static __inline__ unsigned cpm_get_pixclk ():
unsigned int pixclk
unsigned long cfcr2 = CPM_CFCR2
pixclk = cpm_get_pllout () / (cfcr2 + 1)
return pixclk
static __inline__ unsigned cpm_get_devclk ():
return JZ_EXTAL
static __inline__ unsigned cpm_get_rtcclk ():
return RTC_CLOCK
static __inline__ unsigned cpm_get_uartclk ():
return JZ_EXTAL;
static __inline__ unsigned cpm_get_usbclk ():
unsigned int usbclk
unsigned long cfcr = CPM_CFCR
if cfcr & CPM_CFCR_MSC:
usbclk = 48000000
else:
usbclk = cpm_get_pllout () / (((cfcr &CPM_CFCR_UFR_MASK) >> CPM_CFCR_UFR_BIT) + 1)
return usbclk
static __inline__ unsigned cpm_get_i2sclk ():
unsigned int i2sclk
unsigned long cfcr = CPM_CFCR
i2sclk = cpm_get_pllout () / ((cfcr & CPM_CFCR_I2S) ? 2: 1)
return i2sclk
static __inline__ unsigned cpm_get_mscclk ():
if CPM_CFCR & CPM_CFCR_I2S:
return 24000000
else:
return 16000000
/***************************************************************************
* SSI