scottk/OpenCellular
1
0
Fork 0
mirror of https://github.com/Telecominfraproject/OpenCellular.git synced 2025-12-28 02:35:28 +00:00
Code Issues Packages Projects Releases Wiki Activity

Set TPSCHROME temp range configuration

Browse Source 
Signed-off-by: Rong Chang <rongchang@chromium.org>
BUG=chrome-os-partner:11627
TEST=manual
  Check pmu registers under uart console: "pmu"
  TPSCHROME version < 3:
    reg(7) == 0xbd
    reg(8) == 0xfd
  TPSCHROME version >= 3:
    reg(7) == 0xbf
    reg(8) == 0xff

Change-Id: Ifeda54aa142b362aa224575c55220913b0ee7436
Reviewed-on: https://gerrit.chromium.org/gerrit/28587
Reviewed-by: Vic Yang <victoryang@chromium.org>
Commit-Ready: Rong Chang <rongchang@chromium.org>
Tested-by: Rong Chang <rongchang@chromium.org>
This commit is contained in:
Rong Chang
2012-07-27 18:40:21 +08:00
committed by Gerrit
parent e533adccb7
commit 709f6d8b2e
3 changed files with 178 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

52
board/snow/board.c
View File

@@ -261,30 +261,38 @@ void board_i2c_release(int port)
*/
void board_pmu_init(void)
{
/**
* Explanation:
*
* 1. Timeout is by default 2hrs. This increases to 3hrs. At 1.8A
* charging, this should be long enough for the 4000mA-hr battery,
* assuming it spends about 30mins in the CC mode, but doesn't
* allow for much margin.
* 2. Change temp range T23 (0C-40C), to 1.8A max charge. This is
* currently set to 2.4A which is higher than the recommend charge
* current of 2A.
* 3. Change temp range T34 (40C-60C) to 1.8A max charge, and change
* charge voltage to 8.6V. This is currently set to 1.2A/8.49V.
* Because the NTC is on the board, this is quickly reached so
* slow charging may occur. The battery is rated for 2A charging
* up to 60C.
* 4. Set NOITERM bit. On a fully dead battery, the pack goes into a
* mode where it only lets in a very small current via there is a
* different charge path. This fools the charger into thinking
* the current vs voltage is bad. This bit corrects this.
int ver;
/*
* Set fast charging timeout to 3hr.
* Enable gpio charge_en control.
*/
pmu_write(0x04, 0x06);
pmu_write(0x07, 0xbd);
pmu_write(0x08, 0xfd);
pmu_write(0x09, 0xe0);
/* Set NOITERM bit */
pmu_low_current_charging(1);
/*
* High temperature charging
* termination voltage: 2.1V
* termination current: 100%
*/
pmu_set_term_voltage(RANGE_T34, TERM_V2100);
pmu_set_term_current(RANGE_T34, TERM_I1000);
/*
* Standard temperature charging
* termination voltage: 2.1V
* termination current: 100%
*/
pmu_set_term_voltage(RANGE_T23, TERM_V2100);
pmu_set_term_current(RANGE_T23, TERM_I1000);
/* Workaround init values before ES3 */
if (pmu_version(&ver) || ver < 3) {
/* Termination current: 75% */
pmu_set_term_current(RANGE_T34, TERM_I0750);
pmu_set_term_current(RANGE_T23, TERM_I0750);
}
}
#endif /* CONFIG_BOARD_PMU_INIT */

86
common/pmu_tps65090.c
View File

@@ -30,10 +30,18 @@
#define CG_CTRL5 0x09
#define CG_STATUS1 0x0a
#define CG_STATUS2 0x0b
#define TPSCHROME_VER 0x19
/* Charger control */
#define CG_CTRL0_EN 1
/* Charger termination voltage/current */
#define CG_VSET_SHIFT 3
#define CG_VSET_MASK (3 << CG_VSET_SHIFT)
#define CG_ISET_SHIFT 0
#define CG_ISET_MASK (7 << CG_ISET_SHIFT)
#define CG_NOITERM (1 << 5)
/* IRQ events */
#define EVENT_VACG (1 << 1)
#define EVENT_VBATG (1 << 3)
@@ -84,6 +92,16 @@ int pmu_write(int reg, int value)
return i2c_write8(I2C_PORT_CHARGER, TPS65090_I2C_ADDR, reg, value);
}
/**
* Read tpschrome version
*
* @param version output value of tpschrome version
*/
int pmu_version(int *version)
{
return pmu_read(TPSCHROME_VER, version);
}
int pmu_is_charger_alarm(void)
{
int status;
@@ -129,6 +147,74 @@ int pmu_enable_charger(int enable)
(reg & ~CG_CTRL0));
}
/**
* Set termination current for temperature ranges
*
* @param range T01 T12 T23 T34 T40
* @param current enum termination current, I0250 == 25.0%:
* I0000 I0250 I0375 I0500 I0625 I0750 I0875 I1000
*/
int pmu_set_term_current(enum TPS_TEMPERATURE_RANGE range,
enum TPS_TERMINATION_CURRENT current)
{
int rv;
int reg_val;
rv = pmu_read(CG_CTRL1 + range, &reg_val);
if (rv)
return rv;
reg_val &= ~CG_ISET_MASK;
reg_val |= current << CG_ISET_SHIFT;
return pmu_write(CG_CTRL1 + range, reg_val);
}
/**
* Set termination voltage for temperature ranges
*
* @param range T01 T12 T23 T34 T40
* @param voltage enum termination voltage, V2050 == 2.05V:
* V2000 V2050 V2075 V2100
*/
int pmu_set_term_voltage(enum TPS_TEMPERATURE_RANGE range,
enum TPS_TERMINATION_VOLTAGE voltage)
{
int rv;
int reg_val;
rv = pmu_read(CG_CTRL1 + range, &reg_val);
if (rv)
return rv;
reg_val &= ~CG_VSET_MASK;
reg_val |= voltage << CG_VSET_SHIFT;
return pmu_write(CG_CTRL1 + range, reg_val);
}
/**
* Enable low current charging
*
* @param enable enable/disable low current charging
*/
int pmu_low_current_charging(int enable)
{
int rv;
int reg_val;
rv = pmu_read(CG_CTRL5, &reg_val);
if (rv)
return rv;
if (enable)
reg_val |= CG_NOITERM;
else
reg_val &= ~CG_NOITERM;
return pmu_write(CG_CTRL5, reg_val);
}
void pmu_init(void)
{
#ifdef CONFIG_PMU_BOARD_INIT

62
include/pmu_tpschrome.h
View File

@@ -8,6 +8,34 @@
#ifndef __CROS_EC_TPSCHROME_H
#define __CROS_EC_TPSCHROME_H
enum TPS_TEMPERATURE_RANGE {
RANGE_T01,
RANGE_T12, /* low charging temperature range */
RANGE_T23, /* standard charging temperature range */
RANGE_T34, /* high charging temperature range */
RANGE_T40,
};
/* Termination voltage */
enum TPS_TERMINATION_VOLTAGE {
TERM_V2000, /* 2.000 V */
TERM_V2050, /* 2.050 V */
TERM_V2075, /* 2.075 V */
TERM_V2100, /* 2.100 V */
};
/* Termination current */
enum TPS_TERMINATION_CURRENT {
TERM_I0000, /* 0 % */
TERM_I0250, /* 25 % */
TERM_I0375, /* 37.5 % */
TERM_I0500, /* 50 % */
TERM_I0625, /* 62.5 % */
TERM_I0750, /* 75 % */
TERM_I0875, /* 87.5 % */
TERM_I1000, /* 100 % */
};
#define FET_BACKLIGHT 1
#define FET_LCD_PANEL 6
@@ -29,6 +57,13 @@ int pmu_read(int reg, int *value);
*/
int pmu_write(int reg, int value);
/**
* Read tpschrome version
*
* @param version output tpschrome version info
*/
int pmu_version(int *version);
/**
* Check pmu charger alarm
*
@@ -64,6 +99,33 @@ int pmu_enable_fet(int fet_id, int enable, int *power_good);
*/
int pmu_enable_charger(int enable);
/**
* Set termination current for temperature ranges
*
* @param range T01 T12 T23 T34 T40
* @param current enum termination current, I0250 == 25.0%:
* I0000 I0250 I0375 I0500 I0625 I0750 I0875 I1000
*/
int pmu_set_term_current(enum TPS_TEMPERATURE_RANGE range,
enum TPS_TERMINATION_CURRENT current);
/**
* Set termination voltage for temperature ranges
*
* @param range T01 T12 T23 T34 T40
* @param voltage enum termination voltage, V2050 == 2.05V:
* V2000 V2050 V2075 V2100
*/
int pmu_set_term_voltage(enum TPS_TEMPERATURE_RANGE range,
enum TPS_TERMINATION_VOLTAGE voltage);
/**
* Enable low current charging
*
* @param enable enable/disable low current charging
*/
int pmu_low_current_charging(int enable);
/**
* * Initialize pmu
* */