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imx233: add regulator api

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Remove the old debug stuff about VDDx and add a clean api to
get/set the regulator (VDDD, VDDA, VDDIO, VDDMEM). This is useful
for proper frequency scaling.

Change-Id: Ia5a1a712fd66652a8ad9601ed00db31aba5a7561
This commit is contained in:
Amaury Pouly 2012-08-30 00:46:29 +02:00
parent 51f63f0b2a
commit 7ee1e30609
3 changed files with 184 additions and 56 deletions
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45
firmware/target/arm/imx233/power-imx233.h
View file

@ -77,6 +77,8 @@
#define HW_POWER_VDDDCTRL (*(volatile uint32_t *)(HW_POWER_BASE + 0x40))
#define HW_POWER_VDDDCTRL__TRG_BP 0
#define HW_POWER_VDDDCTRL__TRG_BM 0x1f
#define HW_POWER_VDDDCTRL__BO_OFFSET_BP 8
#define HW_POWER_VDDDCTRL__BO_OFFSET_BM (0x7 << 8)
#define HW_POWER_VDDDCTRL__TRG_STEP 25 /* mV */
#define HW_POWER_VDDDCTRL__TRG_MIN 800 /* mV */
#define HW_POWER_VDDDCTRL__LINREG_OFFSET_BP 16
@ -86,6 +88,8 @@
#define HW_POWER_VDDACTRL (*(volatile uint32_t *)(HW_POWER_BASE + 0x50))
#define HW_POWER_VDDACTRL__TRG_BP 0
#define HW_POWER_VDDACTRL__TRG_BM 0x1f
#define HW_POWER_VDDACTRL__BO_OFFSET_BP 8
#define HW_POWER_VDDACTRL__BO_OFFSET_BM (0x7 << 8)
#define HW_POWER_VDDACTRL__TRG_STEP 25 /* mV */
#define HW_POWER_VDDACTRL__TRG_MIN 1500 /* mV */
#define HW_POWER_VDDACTRL__LINREG_OFFSET_BP 12
@ -95,6 +99,8 @@
#define HW_POWER_VDDIOCTRL (*(volatile uint32_t *)(HW_POWER_BASE + 0x60))
#define HW_POWER_VDDIOCTRL__TRG_BP 0
#define HW_POWER_VDDIOCTRL__TRG_BM 0x1f
#define HW_POWER_VDDIOCTRL__BO_OFFSET_BP 8
#define HW_POWER_VDDIOCTRL__BO_OFFSET_BM (0x7 << 8)
#define HW_POWER_VDDIOCTRL__TRG_STEP 25 /* mV */
#define HW_POWER_VDDIOCTRL__TRG_MIN 2800 /* mV */
#define HW_POWER_VDDIOCTRL__LINREG_OFFSET_BP 12
@ -173,10 +179,33 @@ void imx233_power_set_charge_current(unsigned current); /* in mA */
void imx233_power_set_stop_current(unsigned current); /* in mA */
void imx233_power_enable_batadj(bool enable);
enum imx233_regulator_t
{
REGULATOR_VDDD, /* target, brownout, linreg, linreg offset */
REGULATOR_VDDA, /* target, brownout, linreg, linreg offset */
REGULATOR_VDDIO, /* target, brownout, linreg offset */
REGULATOR_VDDMEM, /* target, linreg */
REGULATOR_COUNT,
};
void imx233_power_get_regulator(enum imx233_regulator_t reg, unsigned *target_mv,
unsigned *brownout_mv);
void imx233_power_set_regulator(enum imx233_regulator_t reg, unsigned target_mv,
unsigned brownout_mv);
// offset is -1,0 or 1
void imx233_power_get_regulator_linreg(enum imx233_regulator_t reg,
bool *enabled, int *linreg_offset);
// offset is -1,0 or 1
void imx233_power_set_regulator_linreg(enum imx233_regulator_t reg,
bool enabled, int linreg_offset);
static inline void imx233_power_set_dcdc_freq(bool pll, unsigned freq)
{
HW_POWER_MISC &= ~(HW_POWER_MISC__SEL_PLLCLK | HW_POWER_MISC__FREQSEL_BM);
/* WARNING: HW_POWER_MISC does have a SET/CLR variant ! */
/* WARNING: HW_POWER_MISC does not have a SET/CLR variant ! */
if(pll)
{
HW_POWER_MISC |= freq << HW_POWER_MISC__FREQSEL_BP;
@ -186,16 +215,6 @@ static inline void imx233_power_set_dcdc_freq(bool pll, unsigned freq)
struct imx233_power_info_t
{
int vddd; /* in mV */
bool vddd_linreg; /* VDDD source: linreg from VDDA or DC-DC */
int vddd_linreg_offset;
int vdda; /* in mV */
bool vdda_linreg; /* VDDA source: linreg from VDDIO or DC-DC */
int vdda_linreg_offset;
int vddio; /* in mV */
int vddio_linreg_offset;
int vddmem; /* in mV */
bool vddmem_linreg; /* VDDMEM source: linreg from VDDIO or off */
bool dcdc_sel_pllclk; /* clock source of DC-DC: pll or 24MHz xtal */
int dcdc_freqsel;
int charge_current;
@ -215,10 +234,6 @@ struct imx233_power_info_t
bool _5v_vbus_cmps;
};
#define POWER_INFO_VDDD (1 << 0)
#define POWER_INFO_VDDA (1 << 1)
#define POWER_INFO_VDDIO (1 << 2)
#define POWER_INFO_VDDMEM (1 << 3)
#define POWER_INFO_DCDC (1 << 4)
#define POWER_INFO_CHARGE (1 << 5)
#define POWER_INFO_4P2 (1 << 6)