/*
* Configure the PLL/PRCM for necessary peripherals
*/
void prcm_init(void)
{
/* Enable the control module */
writel(PRCM_MOD_EN, &cmalwon->controlclkctrl);
/* Configure PLLs */
mpu_pll_config();
l3_pll_config();
sata_pll_config();
/* Enable the required peripherals */
enable_per_clocks();
}
/*
* Configure the PLL/PRCM for necessary peripherals
*/
void pll_init(int mpupll_M)
{
mpu_pll_config(mpupll_M);
core_pll_config();
per_pll_config();
ddr_pll_config();
/* Enable the required interconnect clocks */
interface_clocks_enable();
/* Enable power domain transition */
power_domain_transition_enable();
/* Enable the required peripherals */
per_clocks_enable();
}
/*
* Configure the PLL/PRCM for necessary peripherals
*/
void pll_init()
{
unlock_pll_control_mmr();
/* Enable the control module */
writel(PRCM_MOD_EN, &cmalwon->controlclkctrl);
mpu_pll_config();
l3_pll_config();
/* Enable the required peripherals */
enable_per_clocks();
}
/*
* Configure the PLL/PRCM for necessary peripherals
*/
void pll_init()
{
mpu_pll_config();
core_pll_config();
per_pll_config();
/* Enable the required interconnect clocks */
enable_interface_clocks();
/* Power domain wake up transition */
power_domain_wkup_transition();
/* Enable the required peripherals */
enable_per_clocks();
}
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);
}
}
}
