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i.MX: rename i.MX CCM get_clock() function and CLK ID enum names 

This is to prepare for CCM code refactoring.

This is just a bit of function and enum values renaming.

We also remove some useless intermediate variables.

Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: 53c4d9b9611988a5f56f178f285e04490747925e.1449528242.git.jcd@tribudubois.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Jean-Christophe Dubois 2015-12-17 13:37:15 +00:00 committed by Peter Maydell
parent 9de46a0aa3
commit aaa9ec3b4d
4 changed files with 25 additions and 27 deletions
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8
hw/misc/imx_ccm.c
View File

@ -49,18 +49,18 @@ static const VMStateDescription vmstate_imx_ccm = {
.post_load = imx_ccm_post_load,
};
uint32_t imx_clock_frequency(DeviceState *dev, IMXClk clock)
uint32_t imx_ccm_get_clock_frequency(DeviceState *dev, IMXClk clock)
{
IMXCCMState *s = IMX_CCM(dev);
switch (clock) {
case NOCLK:
return 0;
case MCU:
case CLK_MCU:
return s->mcu_clk_freq;
case HSP:
case CLK_HSP:
return s->hsp_clk_freq;
case IPG:
case CLK_IPG:
return s->ipg_clk_freq;
case CLK_32k:
return CKIL_FREQ;

20
hw/timer/imx_epit.c
View File

@ -51,9 +51,9 @@ static char const *imx_epit_reg_name(uint32_t reg)
* These are typical.
*/
static const IMXClk imx_epit_clocks[] = {
0, /* 00 disabled */
IPG, /* 01 ipg_clk, ~532MHz */
IPG, /* 10 ipg_clk_highfreq */
NOCLK, /* 00 disabled */
CLK_IPG, /* 01 ipg_clk, ~532MHz */
CLK_IPG, /* 10 ipg_clk_highfreq */
CLK_32k, /* 11 ipg_clk_32k -- ~32kHz */
};
@ -73,20 +73,18 @@ static void imx_epit_set_freq(IMXEPITState *s)
{
uint32_t clksrc;
uint32_t prescaler;
uint32_t freq;
clksrc = extract32(s->cr, CR_CLKSRC_SHIFT, 2);
prescaler = 1 + extract32(s->cr, CR_PRESCALE_SHIFT, 12);
freq = imx_clock_frequency(s->ccm, imx_epit_clocks[clksrc]) / prescaler;
s->freq = imx_ccm_get_clock_frequency(s->ccm,
imx_epit_clocks[clksrc]) / prescaler;
s->freq = freq;
DPRINTF("Setting ptimer frequency to %u\n", s->freq);
DPRINTF("Setting ptimer frequency to %u\n", freq);
if (freq) {
ptimer_set_freq(s->timer_reload, freq);
ptimer_set_freq(s->timer_cmp, freq);
if (s->freq) {
ptimer_set_freq(s->timer_reload, s->freq);
ptimer_set_freq(s->timer_cmp, s->freq);
}
}

16
hw/timer/imx_gpt.c
View File

@ -81,8 +81,8 @@ static const VMStateDescription vmstate_imx_timer_gpt = {
static const IMXClk imx_gpt_clocks[] = {
NOCLK, /* 000 No clock source */
IPG, /* 001 ipg_clk, 532MHz*/
IPG, /* 010 ipg_clk_highfreq */
CLK_IPG, /* 001 ipg_clk, 532MHz*/
CLK_IPG, /* 010 ipg_clk_highfreq */
NOCLK, /* 011 not defined */
CLK_32k, /* 100 ipg_clk_32k */
NOCLK, /* 101 not defined */
@ -93,14 +93,14 @@ static const IMXClk imx_gpt_clocks[] = {
static void imx_gpt_set_freq(IMXGPTState *s)
{
uint32_t clksrc = extract32(s->cr, GPT_CR_CLKSRC_SHIFT, 3);
uint32_t freq = imx_clock_frequency(s->ccm, imx_gpt_clocks[clksrc])
/ (1 + s->pr);
s->freq = freq;
DPRINTF("Setting clksrc %d to frequency %d\n", clksrc, freq);
s->freq = imx_ccm_get_clock_frequency(s->ccm,
imx_gpt_clocks[clksrc]) / (1 + s->pr);
if (freq) {
ptimer_set_freq(s->timer, freq);
DPRINTF("Setting clksrc %d to frequency %d\n", clksrc, s->freq);
if (s->freq) {
ptimer_set_freq(s->timer, s->freq);
}
}

8
include/hw/misc/imx_ccm.h
View File

@ -80,12 +80,12 @@ typedef struct IMXCCMState {
typedef enum {
NOCLK,
MCU,
HSP,
IPG,
CLK_MCU,
CLK_HSP,
CLK_IPG,
CLK_32k
} IMXClk;
uint32_t imx_clock_frequency(DeviceState *s, IMXClk clock);
uint32_t imx_ccm_get_clock_frequency(DeviceState *s, IMXClk clock);
#endif /* IMX_CCM_H */