void lcdbacklight(int on)
{
unsigned int driver = env_get_ulong("ds1_bright_drv", 16, 0UL);
unsigned int bright = env_get_ulong("ds1_bright_def", 10, 50);
unsigned int pwmfrq = env_get_ulong("ds1_pwmfreq", 10, ~0UL);
unsigned int tmp;
struct gptimer *timerhw;
if (on)
bright = bright != ~0UL ? bright : 50;
else
bright = 0;
switch (driver) {
case 2:
timerhw = (struct gptimer *)DM_TIMER5_BASE;
break;
default:
timerhw = (struct gptimer *)DM_TIMER6_BASE;
}
switch (driver) {
case 0: /* PMIC LED-Driver */
/* brightness level */
tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
TPS65217_WLEDCTRL2, bright, 0xFF);
/* current sink */
tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
TPS65217_WLEDCTRL1,
bright != 0 ? 0x0A : 0x02,
0xFF);
break;
case 1:
case 2: /* PWM using timer */
if (pwmfrq != ~0UL) {
timerhw->tiocp_cfg = TCFG_RESET;
udelay(10);
while (timerhw->tiocp_cfg & TCFG_RESET)
;
tmp = ~0UL-(V_OSCK/pwmfrq); /* bottom value */
timerhw->tldr = tmp;
timerhw->tcrr = tmp;
tmp = tmp + ((V_OSCK/pwmfrq)/100) * bright;
timerhw->tmar = tmp;
timerhw->tclr = (TCLR_PT | (2 << TCLR_TRG_SHIFT) |
TCLR_CE | TCLR_AR | TCLR_ST);
} else {
puts("invalid pwmfrq in env/dtb! skip PWM-setup.\n");
}
break;
default:
puts("no suitable backlightdriver in env/dtb!\n");
break;
}
}
void lcd_enable(void)
{
#ifdef CONFIG_USE_FDT
u32 dtbaddr = getenv_ulong("dtbaddr", 16, ~0UL);
if (dtbaddr == ~0UL) {
puts("lcdpower: failed to get 'dtbaddr' from env!\n");
return;
}
unsigned int driver = FDTPROP(dtbaddr, PATHINF, "brightdrv");
unsigned int bright = FDTPROP(dtbaddr, PATHINF, "brightdef");
unsigned int pwmfrq = FDTPROP(dtbaddr, PATHINF, "brightfdim");
#else
unsigned int driver = getenv_ulong("ds1_bright_drv", 16, 0UL);
unsigned int bright = getenv_ulong("ds1_bright_def", 10, 50);
unsigned int pwmfrq = getenv_ulong("ds1_pwmfreq", 10, ~0UL);
#endif
unsigned int tmp;
struct gptimer *const timerhw = (struct gptimer *)DM_TIMER6_BASE;
bright = bright != ~0UL ? bright : 50;
switch (driver) {
case 0: /* PMIC LED-Driver */
/* brightness level */
tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
TPS65217_WLEDCTRL2, bright, 0xFF);
/* turn on light */
tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
TPS65217_WLEDCTRL1, 0x0A, 0xFF);
break;
case 1: /* PWM using timer6 */
if (pwmfrq != ~0UL) {
timerhw->tiocp_cfg = TCFG_RESET;
udelay(10);
while (timerhw->tiocp_cfg & TCFG_RESET)
;
tmp = ~0UL-(V_OSCK/pwmfrq); /* bottom value */
timerhw->tldr = tmp;
timerhw->tcrr = tmp;
tmp = tmp + ((V_OSCK/pwmfrq)/100) * bright;
timerhw->tmar = tmp;
timerhw->tclr = (TCLR_PT | (2 << TCLR_TRG_SHIFT) |
TCLR_CE | TCLR_AR | TCLR_ST);
} else {
puts("invalid pwmfrq in env/dtb! skip PWM-setup.\n");
}
break;
default:
puts("no suitable backlightdriver in env/dtb!\n");
break;
}
br_summaryscreen();
}
void am33xx_spl_board_init(void)
{
/* debug print detect status */
(void)get_board_type(true);
/* Get the frequency */
/* dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev); */
dpll_mpu_opp100.m = MPUPLL_M_1000;
if (i2c_probe(TPS65217_CHIP_PM))
return;
/* Set the USB Current Limit */
if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_POWER_PATH,
TPS65217_USB_INPUT_CUR_LIMIT_1800MA,
TPS65217_USB_INPUT_CUR_LIMIT_MASK))
puts("! tps65217_reg_write: could not set USB limit\n");
/* Set the Core Voltage (DCDC3) to 1.125V */
if (tps65217_voltage_update(TPS65217_DEFDCDC3,
TPS65217_DCDC_VOLT_SEL_1125MV)) {
puts("! tps65217_reg_write: could not set Core Voltage\n");
return;
}
/* Set CORE Frequencies to OPP100 */
do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
/* Set the MPU Voltage (DCDC2) */
if (tps65217_voltage_update(TPS65217_DEFDCDC2,
TPS65217_DCDC_VOLT_SEL_1325MV)) {
puts("! tps65217_reg_write: could not set MPU Voltage\n");
return;
}
/*
* Set LDO3, LDO4 output voltage to 3.3V for Beaglebone.
* Set LDO3 to 1.8V and LDO4 to 3.3V for Beaglebone Black.
*/
if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, TPS65217_DEFLS1,
TPS65217_LDO_VOLTAGE_OUT_1_8, TPS65217_LDO_MASK))
puts("! tps65217_reg_write: could not set LDO3\n");
if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, TPS65217_DEFLS2,
TPS65217_LDO_VOLTAGE_OUT_3_3, TPS65217_LDO_MASK))
puts("! tps65217_reg_write: could not set LDO4\n");
/* Set MPU Frequency to what we detected now that voltages are set */
do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
}
static int tps65217_bl_update_status(struct backlight_device *bl)
{
struct tps65217_bl *tps65217_bl = bl_get_data(bl);
int rc;
int brightness = bl->props.brightness;
if (bl->props.state & BL_CORE_SUSPENDED)
brightness = 0;
if ((bl->props.power != FB_BLANK_UNBLANK) ||
(bl->props.fb_blank != FB_BLANK_UNBLANK))
/* framebuffer in low power mode or blanking active */
brightness = 0;
if (brightness > 0) {
rc = tps65217_reg_write(tps65217_bl->tps,
TPS65217_REG_WLEDCTRL2,
brightness - 1,
TPS65217_PROTECT_NONE);
if (rc) {
dev_err(tps65217_bl->dev,
"failed to set brightness level: %d\n", rc);
return rc;
}
dev_dbg(tps65217_bl->dev, "brightness set to %d\n", brightness);
if (!tps65217_bl->on)
rc = tps65217_bl_enable(tps65217_bl);
} else {
rc = tps65217_bl_disable(tps65217_bl);
}
return rc;
}
int tps65217_voltage_update(unsigned char dc_cntrl_reg, unsigned char volt_sel)
{
if ((dc_cntrl_reg != DEFDCDC1) && (dc_cntrl_reg != DEFDCDC2)
&& (dc_cntrl_reg != DEFDCDC3))
return 1;
/* set voltage level */
if (tps65217_reg_write(PROT_LEVEL_2, dc_cntrl_reg, volt_sel, MASK_ALL_BITS))
return 1;
/* set GO bit to initiate voltage transition */
if (tps65217_reg_write(PROT_LEVEL_2, DEFSLEW, DCDC_GO, DCDC_GO))
return 1;
return 0;
}
/**
* tps65217_update_bits: Modify bits w.r.t mask, val and level.
*
* @tps65217: Device to write to.
* @reg: Register to read-write to.
* @mask: Mask.
* @val: Value to write.
* @level: Password protected level
*/
static int tps65217_update_bits(struct tps65217 *tps, unsigned int reg,
unsigned int mask, unsigned int val, unsigned int level)
{
int ret;
unsigned int data;
ret = tps65217_reg_read(tps, reg, &data);
if (ret) {
dev_err(tps->dev, "Read from reg 0x%x failed\n", reg);
return ret;
}
data &= ~mask;
data |= val & mask;
ret = tps65217_reg_write(tps, reg, data, level);
if (ret)
dev_err(tps->dev, "Write for reg 0x%x failed\n", reg);
return ret;
}
void am33xx_spl_board_init(void)
{
int mpu_vdd;
/* Get the frequency */
dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
/* BeagleBone PMIC Code */
int usb_cur_lim;
if (i2c_probe(TPS65217_CHIP_PM))
return;
/*
* Override what we have detected since we know if we have
* a Beaglebone Black it supports 1GHz.
*/
dpll_mpu_opp100.m = MPUPLL_M_1000;
/*
* Increase USB current limit to 1300mA or 1800mA and set
* the MPU voltage controller as needed.
*/
usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
TPS65217_POWER_PATH,
usb_cur_lim,
TPS65217_USB_INPUT_CUR_LIMIT_MASK))
puts("tps65217_reg_write failure\n");
/* Set DCDC3 (CORE) voltage to 1.125V */
if (tps65217_voltage_update(TPS65217_DEFDCDC3,
TPS65217_DCDC_VOLT_SEL_1125MV)) {
puts("tps65217_voltage_update failure\n");
return;
}
/* Set CORE Frequencies to OPP100 */
do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
/* Set DCDC2 (MPU) voltage */
if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) {
puts("tps65217_voltage_update failure\n");
return;
}
/*
* Set LDO3 to 1.8V and LDO4 to 3.3V for Beaglebone Black.
*/
if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
TPS65217_DEFLS1,
TPS65217_LDO_VOLTAGE_OUT_1_8,
TPS65217_LDO_MASK))
puts("tps65217_reg_write failure\n");
if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
TPS65217_DEFLS2,
TPS65217_LDO_VOLTAGE_OUT_3_3,
TPS65217_LDO_MASK))
puts("tps65217_reg_write failure\n");
/* Set MPU Frequency to what we detected now that voltages are set */
do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
}
void am33xx_spl_board_init(void)
{
if (!strncmp("A335BONE", header.name, 8)) {
/* BeagleBone PMIC Code */
uchar pmic_status_reg;
if (i2c_probe(TPS65217_CHIP_PM))
return;
if (tps65217_reg_read(STATUS, &pmic_status_reg))
return;
/* Increase USB current limit to 1300mA */
if (tps65217_reg_write(PROT_LEVEL_NONE, POWER_PATH,
USB_INPUT_CUR_LIMIT_1300MA,
USB_INPUT_CUR_LIMIT_MASK))
printf("tps65217_reg_write failure\n");
/* Only perform PMIC configurations if board rev > A1 */
if (!strncmp(header.version, "00A1", 4))
return;
/* Set DCDC2 (MPU) voltage to 1.275V */
if (tps65217_voltage_update(DEFDCDC2,
DCDC_VOLT_SEL_1275MV)) {
printf("tps65217_voltage_update failure\n");
return;
}
/* Set LDO3, LDO4 output voltage to 3.3V */
if (tps65217_reg_write(PROT_LEVEL_2, DEFLS1,
LDO_VOLTAGE_OUT_3_3, LDO_MASK))
printf("tps65217_reg_write failure\n");
if (tps65217_reg_write(PROT_LEVEL_2, DEFLS2,
LDO_VOLTAGE_OUT_3_3, LDO_MASK))
printf("tps65217_reg_write failure\n");
if (!(pmic_status_reg & PWR_SRC_AC_BITMASK)) {
printf("No AC power, disabling frequency switch\n");
return;
}
/* Set MPU Frequency to 720MHz */
mpu_pll_config(MPUPLL_M_720);
} else {
uchar buf[4];
/*
* EVM PMIC code. All boards currently want an MPU voltage
* of 1.2625V and CORE voltage of 1.1375V to operate at
* 720MHz.
*/
if (i2c_probe(PMIC_CTRL_I2C_ADDR))
return;
/* VDD1/2 voltage selection register access by control i/f */
if (i2c_read(PMIC_CTRL_I2C_ADDR, PMIC_DEVCTRL_REG, 1, buf, 1))
return;
buf[0] |= PMIC_DEVCTRL_REG_SR_CTL_I2C_SEL_CTL_I2C;
if (i2c_write(PMIC_CTRL_I2C_ADDR, PMIC_DEVCTRL_REG, 1, buf, 1))
return;
if (!voltage_update(MPU, PMIC_OP_REG_SEL_1_2_6) &&
!voltage_update(CORE, PMIC_OP_REG_SEL_1_1_3)) {
if (board_is_evm_15_or_later())
mpu_pll_config(MPUPLL_M_800);
else
mpu_pll_config(MPUPLL_M_720);
}
}
}
void pmicsetup(u32 mpupll)
{
int mpu_vdd;
int usb_cur_lim;
if (i2c_probe(TPS65217_CHIP_PM)) {
puts("PMIC (0x24) not found! skip further initalization.\n");
return;
}
/* Get the frequency which is defined by device fuses */
dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
printf("detected max. frequency: %d - ", dpll_mpu_opp100.m);
if (0 != mpupll) {
dpll_mpu_opp100.m = MPUPLL_M_1000;
printf("retuning MPU-PLL to: %d MHz.\n", dpll_mpu_opp100.m);
} else {
puts("ok.\n");
}
/*
* Increase USB current limit to 1300mA or 1800mA and set
* the MPU voltage controller as needed.
*/
if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
} else {
usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
}
if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_POWER_PATH,
usb_cur_lim, TPS65217_USB_INPUT_CUR_LIMIT_MASK))
puts("tps65217_reg_write failure\n");
/* Set DCDC3 (CORE) voltage to 1.125V */
if (tps65217_voltage_update(TPS65217_DEFDCDC3,
TPS65217_DCDC_VOLT_SEL_1125MV)) {
puts("tps65217_voltage_update failure\n");
return;
}
/* Set CORE Frequencies to OPP100 */
do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
/* Set DCDC2 (MPU) voltage */
if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) {
puts("tps65217_voltage_update failure\n");
return;
}
/* Set LDO3 to 1.8V */
if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
TPS65217_DEFLS1,
TPS65217_LDO_VOLTAGE_OUT_1_8,
TPS65217_LDO_MASK))
puts("tps65217_reg_write failure\n");
/* Set LDO4 to 3.3V */
if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
TPS65217_DEFLS2,
TPS65217_LDO_VOLTAGE_OUT_3_3,
TPS65217_LDO_MASK))
puts("tps65217_reg_write failure\n");
/* Set MPU Frequency to what we detected now that voltages are set */
do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
/* Set PWR_EN bit in Status Register */
tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
TPS65217_STATUS, TPS65217_PWR_OFF, TPS65217_PWR_OFF);
}
void am33xx_spl_board_init(void)
{
struct am335x_baseboard_id header;
int mpu_vdd;
if (read_eeprom(&header) < 0)
{
puts("Wrong data in EEPROM.\n");
hang();
}
if (!board_is_kalitap(&header) &&
!board_is_luna(&header) &&
!board_is_catchwire(&header))
{
puts("Could not get board ID (CatchWire/KaliTAP).\n");
hang();
}
/* Get the frequency */
dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
/* BeagleBone and NEWT PMIC Code */
int usb_cur_lim;
if (i2c_probe(TPS65217_CHIP_PM))
return;
/*
* Override what we have detected since we know we have
* a CatchWire/KaliTAP that supports 1GHz.
*/
dpll_mpu_opp100.m = MPUPLL_M_1000;
/*
* Increase USB current limit to 1300mA or 1800mA and set
* the MPU voltage controller as needed.
*/
if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
puts("tps65217_reg_write USB_INPUT_CUR_LIMIT_1800MA\n");
} else {
usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
puts("tps65217_reg_write USB_INPUT_CUR_LIMIT_1300MA\n");
}
if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
TPS65217_POWER_PATH,
usb_cur_lim,
TPS65217_USB_INPUT_CUR_LIMIT_MASK))
{
puts("tps65217_reg_write POWER_PATH failure\n");
}
else
{
uchar pmic_power_path_reg = 0;
puts("tps65217_reg_write POWER_PATH success\n");
tps65217_reg_read(TPS65217_POWER_PATH,
&pmic_power_path_reg);
printf("POWER_PATH : 0%02X\n", pmic_power_path_reg);
}
/* Set DCDC3 (CORE) voltage to 1.125V */
if (tps65217_voltage_update(TPS65217_DEFDCDC3,
TPS65217_DCDC_VOLT_SEL_1125MV)) {
puts("tps65217_voltage_update failure\n");
return;
}
/* Set CORE Frequencies to OPP100 */
do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
/* Set DCDC2 (MPU) voltage */
if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) {
puts("tps65217_voltage_update failure\n");
return;
}
else
{
puts("tps65217_voltage_update success\n");
}
/*
* Set LDO3 to 1.8V and LDO4 to 3.3V for CatchWire/KaliTAP.
*/
if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
TPS65217_DEFLS1,
TPS65217_LDO_VOLTAGE_OUT_1_8,
TPS65217_LDO_MASK))
puts("tps65217_reg_write failure\n");
if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
TPS65217_DEFLS2,
TPS65217_LDO_VOLTAGE_OUT_3_3,
TPS65217_LDO_MASK))
puts("tps65217_reg_write failure\n");
/* Set MPU Frequency to what we detected now that voltages are set */
do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
}
