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imxtools/hwemul: remove useless code (pwm)

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The PWM code was for testing only the Zen X-Fi and should be
present in general because it could touch pins by error and
without producing any result.

Change-Id: Id20e2940cd7a057941d241254d0a867f5451e2db
This commit is contained in:
Amaury Pouly 2012-12-14 12:06:11 +01:00
parent 788bf2e3b2
commit cdaef6f382
1 changed files with 0 additions and 102 deletions
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102
utils/imxtools/hwemul/dev/main.c
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@ -778,91 +778,6 @@ static void udelay(unsigned us)
#define HZ 1000000
/**
*
* PWM
*
*/
#define HW_PWM_BASE 0x80064000
#define HW_PWM_CTRL (*(volatile uint32_t *)(HW_PWM_BASE + 0x0))
#define HW_PWM_CTRL__PWMx_ENABLE(x) (1 << (x))
#define HW_PWM_ACTIVEx(x) (*(volatile uint32_t *)(HW_PWM_BASE + 0x10 + (x) * 0x20))
#define HW_PWM_ACTIVEx__ACTIVE_BP 0
#define HW_PWM_ACTIVEx__ACTIVE_BM 0xffff
#define HW_PWM_ACTIVEx__INACTIVE_BP 16
#define HW_PWM_ACTIVEx__INACTIVE_BM 0xffff0000
#define HW_PWM_PERIODx(x) (*(volatile uint32_t *)(HW_PWM_BASE + 0x20 + (x) * 0x20))
#define HW_PWM_PERIODx__PERIOD_BP 0
#define HW_PWM_PERIODx__PERIOD_BM 0xffff
#define HW_PWM_PERIODx__ACTIVE_STATE_BP 16
#define HW_PWM_PERIODx__ACTIVE_STATE_BM (0x3 << 16)
#define HW_PWM_PERIODx__INACTIVE_STATE_BP 18
#define HW_PWM_PERIODx__INACTIVE_STATE_BM (0x3 << 18)
#define HW_PWM_PERIODx__CDIV_BP 20
#define HW_PWM_PERIODx__CDIV_BM (0x7 << 20)
#define HW_PWM_PERIODx__CDIV__DIV_1 0
#define HW_PWM_PERIODx__CDIV__DIV_2 1
#define HW_PWM_PERIODx__CDIV__DIV_4 2
#define HW_PWM_PERIODx__CDIV__DIV_8 3
#define HW_PWM_PERIODx__CDIV__DIV_16 4
#define HW_PWM_PERIODx__CDIV__DIV_64 5
#define HW_PWM_PERIODx__CDIV__DIV_256 6
#define HW_PWM_PERIODx__CDIV__DIV_1024 7
#define HW_PWM_PERIODx__STATE__HI_Z 0
#define HW_PWM_PERIODx__STATE__LOW 2
#define HW_PWM_PERIODx__STATE__HIGH 3
#define IMX233_PWM_PIN_BANK(channel) 2
#define IMX233_PWM_PIN(channel) (0 + (channel))
static void imx233_pwm_init(void)
{
//__REG_SET(HW_PWM_CTRL) = __BLOCK_SFTRST;
__REG_CLR(HW_PWM_CTRL) = __BLOCK_SFTRST | __BLOCK_CLKGATE;
while(HW_PWM_CTRL & __BLOCK_CLKGATE);
__REG_CLR(HW_CLKCTRL_XTAL) = HW_CLKCTRL_XTAL__PWM_CLK24M_GATE;
}
static bool imx233_pwm_is_channel_enable(int channel)
{
return HW_PWM_CTRL & HW_PWM_CTRL__PWMx_ENABLE(channel);
}
static void imx233_pwm_enable_channel(int channel, bool enable)
{
if(enable)
__REG_SET(HW_PWM_CTRL) = HW_PWM_CTRL__PWMx_ENABLE(channel);
else
__REG_CLR(HW_PWM_CTRL) = HW_PWM_CTRL__PWMx_ENABLE(channel);
}
static void imx233_pwm_setup_channel(int channel, int period, int cdiv, int active,
int active_state, int inactive, int inactive_state)
{
/* stop */
bool enable = imx233_pwm_is_channel_enable(channel);
if(enable)
imx233_pwm_enable_channel(channel, false);
/* setup pin */
imx233_set_pin_function(IMX233_PWM_PIN_BANK(channel), IMX233_PWM_PIN(channel),
PINCTRL_FUNCTION_MAIN);
imx233_set_pin_drive_strength(IMX233_PWM_PIN_BANK(channel), IMX233_PWM_PIN(channel),
PINCTRL_DRIVE_4mA);
/* watch the order ! active THEN period */
HW_PWM_ACTIVEx(channel) = active << HW_PWM_ACTIVEx__ACTIVE_BP |
inactive << HW_PWM_ACTIVEx__INACTIVE_BP;
HW_PWM_PERIODx(channel) = period | active_state << HW_PWM_PERIODx__ACTIVE_STATE_BP |
inactive_state << HW_PWM_PERIODx__INACTIVE_STATE_BP |
cdiv << HW_PWM_PERIODx__CDIV_BP;
/* restore */
imx233_pwm_enable_channel(channel, enable);
}
/**
*
* USB PHY
@ -1430,13 +1345,6 @@ static void handle_class_req(struct usb_ctrlrequest *req)
*
*/
static void flash_pwm(int chan, int v1, int v2)
{
imx233_pwm_setup_channel(chan, 500, HW_PWM_PERIODx__CDIV__DIV_256,
v1, HW_PWM_PERIODx__STATE__HIGH,
v2, HW_PWM_PERIODx__STATE__LOW);
}
void main(uint32_t arg)
{
usb_buffer_size = oc_buffersize;
@ -1445,13 +1353,6 @@ void main(uint32_t arg)
HWEMUL_VERSION_REV);
logf("argument: 0x%08x\n", arg);
imx233_pwm_init();
flash_pwm(2, 0, 500);
flash_pwm(4, 0, 0);
udelay(HZ / 2);
/* we don't know if USB was connected or not. In USB recovery mode it will
* but in other cases it might not be. In doubt, disconnect */
REG_USBCMD &= ~USBCMD_RUN;
@ -1481,9 +1382,6 @@ void main(uint32_t arg)
REG_ENDPTSETUPSTAT = EPSETUP_STATUS_EP0;
/* run! */
REG_USBCMD |= USBCMD_RUN;
/* infinite loop */
flash_pwm(2, 0, 0);
flash_pwm(4, 0, 500);
while(1)
{