static void setup_dplls(void)
{
u32 sysclk_ind, temp;
const struct dpll_params *params;
debug("setup_dplls\n");
sysclk_ind = get_sys_clk_index();
/* CORE dpll */
params = get_core_dpll_params(); /* default - safest */
/*
* Do not lock the core DPLL now. Just set it up.
* Core DPLL will be locked after setting up EMIF
* using the FREQ_UPDATE method(freq_update_core())
*/
do_setup_dpll(&prcm->cm_clkmode_dpll_core, params, DPLL_NO_LOCK);
/* Set the ratios for CORE_CLK, L3_CLK, L4_CLK */
temp = (CLKSEL_CORE_X2_DIV_1 << CLKSEL_CORE_SHIFT) |
(CLKSEL_L3_CORE_DIV_2 << CLKSEL_L3_SHIFT) |
(CLKSEL_L4_L3_DIV_2 << CLKSEL_L4_SHIFT);
writel(temp, &prcm->cm_clksel_core);
debug("Core DPLL configured\n");
/* lock PER dpll */
do_setup_dpll(&prcm->cm_clkmode_dpll_per,
&per_dpll_params_1536mhz[sysclk_ind], DPLL_LOCK);
debug("PER DPLL locked\n");
/* MPU dpll */
configure_mpu_dpll();
}
static void setup_dplls(void)
{
u32 temp;
const struct dpll_params *params;
struct emif_reg_struct *emif = (struct emif_reg_struct *)EMIF1_BASE;
debug("setup_dplls\n");
/* CORE dpll */
params = get_core_dpll_params(*dplls_data); /* default - safest */
/*
* Do not lock the core DPLL now. Just set it up.
* Core DPLL will be locked after setting up EMIF
* using the FREQ_UPDATE method(freq_update_core())
*/
if (emif_sdram_type(readl(&emif->emif_sdram_config)) ==
EMIF_SDRAM_TYPE_LPDDR2)
do_setup_dpll((*prcm)->cm_clkmode_dpll_core, params,
DPLL_NO_LOCK, "core");
else
do_setup_dpll((*prcm)->cm_clkmode_dpll_core, params,
DPLL_LOCK, "core");
/* Set the ratios for CORE_CLK, L3_CLK, L4_CLK */
temp = (CLKSEL_CORE_X2_DIV_1 << CLKSEL_CORE_SHIFT) |
(CLKSEL_L3_CORE_DIV_2 << CLKSEL_L3_SHIFT) |
(CLKSEL_L4_L3_DIV_2 << CLKSEL_L4_SHIFT);
writel(temp, (*prcm)->cm_clksel_core);
debug("Core DPLL configured\n");
/* lock PER dpll */
params = get_per_dpll_params(*dplls_data);
do_setup_dpll((*prcm)->cm_clkmode_dpll_per,
params, DPLL_LOCK, "per");
debug("PER DPLL locked\n");
/* MPU dpll */
configure_mpu_dpll();
#if defined(CONFIG_USB_EHCI_OMAP) || defined(CONFIG_USB_XHCI_OMAP) || \
defined(CONFIG_USB_MUSB_OMAP2PLUS)
setup_usb_dpll();
#endif
params = get_ddr_dpll_params(*dplls_data);
do_setup_dpll((*prcm)->cm_clkmode_dpll_ddrphy,
params, DPLL_LOCK, "ddr");
#ifdef CONFIG_DRIVER_TI_CPSW
params = get_gmac_dpll_params(*dplls_data);
do_setup_dpll((*prcm)->cm_clkmode_dpll_gmac, params,
DPLL_LOCK, "gmac");
#endif
}
void am33xx_spl_board_init(void)
{
struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
/* Get the frequency */
dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
/* Set CORE Frequencies to OPP100 */
do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
/* 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)
{
/* 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 conf_disp_pll(int m, int n)
{
struct cm_perpll *cmper = (struct cm_perpll *)CM_PER;
struct dpll_params dpll_lcd = {m, n, -1, -1, -1, -1, -1};
#if defined(DISPL_PLL_SPREAD_SPECTRUM)
struct cm_wkuppll *cmwkup = (struct cm_wkuppll *)CM_WKUP;
#endif
u32 *const clk_domains[] = {
&cmper->lcdclkctrl,
0
};
u32 *const clk_modules_explicit_en[] = {
&cmper->lcdclkctrl,
&cmper->lcdcclkstctrl,
&cmper->spi1clkctrl,
0
};
do_enable_clocks(clk_domains, clk_modules_explicit_en, 1);
do_setup_dpll(&dpll_lcd_regs, &dpll_lcd);
#if defined(DISPL_PLL_SPREAD_SPECTRUM)
writel(0x64, &cmwkup->resv6[3]); /* 0x50 */
writel(0x800, &cmwkup->resv6[2]); /* 0x4c */
writel(readl(&cmwkup->clkmoddplldisp) | CM_CLKMODE_DPLL_SSC_EN_MASK,
&cmwkup->clkmoddplldisp); /* 0x98 */
#endif
return 0;
}
/*
* Lock MPU dpll
*
* Resulting MPU frequencies:
* 4430 ES1.0 : 600 MHz
* 4430 ES2.x : 792 MHz (OPP Turbo)
* 4460 : 920 MHz (OPP Turbo) - DCC disabled
*/
void configure_mpu_dpll(void)
{
const struct dpll_params *params;
struct dpll_regs *mpu_dpll_regs;
u32 omap_rev;
omap_rev = omap_revision();
/*
* DCC and clock divider settings for 4460.
* DCC is required, if more than a certain frequency is required.
* For, 4460 > 1GHZ.
* 5430 > 1.4GHZ.
*/
if ((omap_rev >= OMAP4460_ES1_0) && (omap_rev < OMAP5430_ES1_0)) {
mpu_dpll_regs =
(struct dpll_regs *)((*prcm)->cm_clkmode_dpll_mpu);
bypass_dpll((*prcm)->cm_clkmode_dpll_mpu);
clrbits_le32((*prcm)->cm_mpu_mpu_clkctrl,
MPU_CLKCTRL_CLKSEL_EMIF_DIV_MODE_MASK);
setbits_le32((*prcm)->cm_mpu_mpu_clkctrl,
MPU_CLKCTRL_CLKSEL_ABE_DIV_MODE_MASK);
clrbits_le32(&mpu_dpll_regs->cm_clksel_dpll,
CM_CLKSEL_DCC_EN_MASK);
}
params = get_mpu_dpll_params(*dplls_data);
do_setup_dpll((*prcm)->cm_clkmode_dpll_mpu, params, DPLL_LOCK, "mpu");
debug("MPU DPLL locked\n");
}
static void setup_usb_dpll(void)
{
const struct dpll_params *params;
u32 sys_clk_khz, sd_div, num, den;
sys_clk_khz = get_sys_clk_freq() / 1000;
/*
* USB:
* USB dpll is J-type. Need to set DPLL_SD_DIV for jitter correction
* DPLL_SD_DIV = CEILING ([DPLL_MULT/(DPLL_DIV+1)]* CLKINP / 250)
* - where CLKINP is sys_clk in MHz
* Use CLKINP in KHz and adjust the denominator accordingly so
* that we have enough accuracy and at the same time no overflow
*/
params = get_usb_dpll_params(*dplls_data);
num = params->m * sys_clk_khz;
den = (params->n + 1) * 250 * 1000;
num += den - 1;
sd_div = num / den;
clrsetbits_le32((*prcm)->cm_clksel_dpll_usb,
CM_CLKSEL_DPLL_DPLL_SD_DIV_MASK,
sd_div << CM_CLKSEL_DPLL_DPLL_SD_DIV_SHIFT);
/* Now setup the dpll with the regular function */
do_setup_dpll((*prcm)->cm_clkmode_dpll_usb, params, DPLL_LOCK, "usb");
}
/*
* Lock MPU dpll
*
* Resulting MPU frequencies:
* 4430 ES1.0 : 600 MHz
* 4430 ES2.x : 792 MHz (OPP Turbo)
* 4460 : 920 MHz (OPP Turbo) - DCC disabled
*/
void configure_mpu_dpll(void)
{
const struct dpll_params *params;
struct dpll_regs *mpu_dpll_regs;
u32 omap4_rev, sysclk_ind;
omap4_rev = omap_revision();
sysclk_ind = get_sys_clk_index();
if (omap4_rev == OMAP4430_ES1_0)
params = &mpu_dpll_params_1200mhz[sysclk_ind];
else if (omap4_rev < OMAP4460_ES1_0)
params = &mpu_dpll_params_1584mhz[sysclk_ind];
else
params = &mpu_dpll_params_1840mhz[sysclk_ind];
/* DCC and clock divider settings for 4460 */
if (omap4_rev >= OMAP4460_ES1_0) {
mpu_dpll_regs =
(struct dpll_regs *)&prcm->cm_clkmode_dpll_mpu;
bypass_dpll(&prcm->cm_clkmode_dpll_mpu);
clrbits_le32(&prcm->cm_mpu_mpu_clkctrl,
MPU_CLKCTRL_CLKSEL_EMIF_DIV_MODE_MASK);
setbits_le32(&prcm->cm_mpu_mpu_clkctrl,
MPU_CLKCTRL_CLKSEL_ABE_DIV_MODE_MASK);
clrbits_le32(&mpu_dpll_regs->cm_clksel_dpll,
CM_CLKSEL_DCC_EN_MASK);
}
do_setup_dpll(&prcm->cm_clkmode_dpll_mpu, params, DPLL_LOCK);
debug("MPU DPLL locked\n");
}
static void setup_dplls(void)
{
const struct dpll_params *params;
params = get_dpll_core_params();
do_setup_dpll(&dpll_core_regs, params);
params = get_dpll_mpu_params();
do_setup_dpll(&dpll_mpu_regs, params);
params = get_dpll_per_params();
do_setup_dpll(&dpll_per_regs, params);
writel(0x300, &cmwkup->clkdcoldodpllper);
params = get_dpll_ddr_params();
do_setup_dpll(&dpll_ddr_regs, params);
}
static void setup_non_essential_dplls(void)
{
u32 abe_ref_clk;
const struct dpll_params *params;
/* IVA */
clrsetbits_le32((*prcm)->cm_bypclk_dpll_iva,
CM_BYPCLK_DPLL_IVA_CLKSEL_MASK, DPLL_IVA_CLKSEL_CORE_X2_DIV_2);
params = get_iva_dpll_params(*dplls_data);
do_setup_dpll((*prcm)->cm_clkmode_dpll_iva, params, DPLL_LOCK, "iva");
/* Configure ABE dpll */
params = get_abe_dpll_params(*dplls_data);
#ifdef CONFIG_SYS_OMAP_ABE_SYSCK
abe_ref_clk = CM_ABE_PLL_REF_CLKSEL_CLKSEL_SYSCLK;
if (omap_revision() == DRA752_ES1_0)
/* Select the sys clk for dpll_abe */
clrsetbits_le32((*prcm)->cm_abe_pll_sys_clksel,
CM_CLKSEL_ABE_PLL_SYS_CLKSEL_MASK,
CM_ABE_PLL_SYS_CLKSEL_SYSCLK2);
#else
abe_ref_clk = CM_ABE_PLL_REF_CLKSEL_CLKSEL_32KCLK;
/*
* We need to enable some additional options to achieve
* 196.608MHz from 32768 Hz
*/
setbits_le32((*prcm)->cm_clkmode_dpll_abe,
CM_CLKMODE_DPLL_DRIFTGUARD_EN_MASK|
CM_CLKMODE_DPLL_RELOCK_RAMP_EN_MASK|
CM_CLKMODE_DPLL_LPMODE_EN_MASK|
CM_CLKMODE_DPLL_REGM4XEN_MASK);
/* Spend 4 REFCLK cycles at each stage */
clrsetbits_le32((*prcm)->cm_clkmode_dpll_abe,
CM_CLKMODE_DPLL_RAMP_RATE_MASK,
1 << CM_CLKMODE_DPLL_RAMP_RATE_SHIFT);
#endif
/* Select the right reference clk */
clrsetbits_le32((*prcm)->cm_abe_pll_ref_clksel,
CM_ABE_PLL_REF_CLKSEL_CLKSEL_MASK,
abe_ref_clk << CM_ABE_PLL_REF_CLKSEL_CLKSEL_SHIFT);
/* Lock the dpll */
do_setup_dpll((*prcm)->cm_clkmode_dpll_abe, params, DPLL_LOCK, "abe");
}
static void setup_dplls(void)
{
const struct dpll_params *params;
params = get_dpll_core_params();
do_setup_dpll(&dpll_core_regs, params);
params = get_dpll_mpu_params();
do_setup_dpll(&dpll_mpu_regs, params);
params = get_dpll_per_params();
do_setup_dpll(&dpll_per_regs, params);
writel(0x300, &cmwkup->clkdcoldodpllper);
params = get_dpll_ddr_params();
printf(">>> %s vor do_setup_dpll\n", __func__);
do_setup_dpll(&dpll_ddr_regs, params);
printf(">>> %s nach do_setup_dpll\n", __func__);
}
void am33xx_spl_board_init(void)
{
/*
* The pengwyn board uses the TPS650250 PMIC without I2C
* interface and will output the following fixed voltages:
* DCDC1=3V3 (IO) DCDC2=1V5 (DDR) DCDC3=1V26 (Vmpu)
* VLDO1=1V8 (IO) VLDO2=1V8(IO)
* Vcore=1V1 is fixed, generated by TPS62231
*/
/* Get the frequency */
dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
/* Set CORE Frequencies to OPP100 */
do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
/* 720MHz cpu, this might change on newer board revisions */
dpll_mpu_opp100.m = MPUPLL_M_720;
do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
}
static int conf_disp_pll(int m, int n)
{
struct cm_perpll *cmper = (struct cm_perpll *)CM_PER;
struct cm_dpll *cmdpll = (struct cm_dpll *)CM_DPLL;
struct dpll_params dpll_lcd = {m, n, -1, -1, -1, -1, -1};
u32 *const clk_domains[] = {
&cmper->lcdclkctrl,
0
};
u32 *const clk_modules_explicit_en[] = {
&cmper->lcdclkctrl,
&cmper->lcdcclkstctrl,
&cmper->epwmss0clkctrl,
0
};
do_enable_clocks(clk_domains, clk_modules_explicit_en, 1);
writel(0x0, &cmdpll->clklcdcpixelclk);
do_setup_dpll(&dpll_lcd_regs, &dpll_lcd);
return 0;
}
void am33xx_spl_board_init(void)
{
struct am335x_baseboard_id header;
int mpu_vdd;
puts("am33xx_spl_board_init \n");
if (read_eeprom(&header) < 0)
puts("Could not get board ID.\n");
/* Get the frequency */
dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
if (board_is_bone(&header) || board_is_bone_lt(&header)) {
/* BeagleBone PMIC Code */
int usb_cur_lim;
/*
* Only perform PMIC configurations if board rev > A1
* on Beaglebone White
*/
//if (board_is_bone(&header) && !strncmp(header.version,
// "00A1", 4))
// return;
//if (i2c_probe(TPS65217_CHIP_PM))
// return;
/*
* On Beaglebone White we need to ensure we have AC power
* before increasing the frequency.
*/
/* if (board_is_bone(&header)) {
uchar pmic_status_reg;
if (tps65217_reg_read(TPS65217_STATUS,
&pmic_status_reg))
return;
if (!(pmic_status_reg & TPS65217_PWR_SRC_AC_BITMASK)) {
puts("No AC power, disabling frequency switch\n");
return;
}
}*/
/*
* Override what we have detected since we know if we have
* a Beaglebone Black it supports 1GHz.
*/
// if (board_is_bone_lt(&header))
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;
// } 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, LDO4 output voltage to 3.3V for Beaglebone.
* Set LDO3 to 1.8V and LDO4 to 3.3V for Beaglebone Black.
*/
// if (board_is_bone(&header)) {
// if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
// TPS65217_DEFLS1,
// TPS65217_LDO_VOLTAGE_OUT_3_3,
// TPS65217_LDO_MASK))
// puts("tps65217_reg_write failure\n");
// } else {
/// 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");
} else {
int sil_rev;
/*
* The GP EVM, IDK and EVM SK use a TPS65910 PMIC. For all
* MPU frequencies we support we use a CORE voltage of
* 1.1375V. For MPU voltage we need to switch based on
* the frequency we are running at.
*/
// if (i2c_probe(TPS65910_CTRL_I2C_ADDR))
// return;
/*
* Depending on MPU clock and PG we will need a different
* VDD to drive at that speed.
*/
// sil_rev = readl(&cdev->deviceid) >> 28;
// mpu_vdd = am335x_get_tps65910_mpu_vdd(sil_rev,
// dpll_mpu_opp100.m);
//
/* Tell the TPS65910 to use i2c */
// tps65910_set_i2c_control();
/* First update MPU voltage. */
// if (tps65910_voltage_update(MPU, mpu_vdd))
// return;
/* Second, update the CORE voltage. */
// if (tps65910_voltage_update(CORE, TPS65910_OP_REG_SEL_1_1_3))
// return;
/* Set CORE Frequencies to OPP100 */
// do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
}
/* Set MPU Frequency to what we detected now that voltages are set */
do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
puts("spl_board_init end \n");
}
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);
}
/*
* This function is the place to do per-board things such as ramp up the
* MPU clock frequency.
*/
__weak void am33xx_spl_board_init(void)
{
do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
}
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);
}
static void setup_non_essential_dplls(void)
{
u32 sys_clk_khz, abe_ref_clk;
u32 sysclk_ind, sd_div, num, den;
const struct dpll_params *params;
sysclk_ind = get_sys_clk_index();
sys_clk_khz = get_sys_clk_freq() / 1000;
/* IVA */
clrsetbits_le32(&prcm->cm_bypclk_dpll_iva,
CM_BYPCLK_DPLL_IVA_CLKSEL_MASK, DPLL_IVA_CLKSEL_CORE_X2_DIV_2);
do_setup_dpll(&prcm->cm_clkmode_dpll_iva,
&iva_dpll_params_1862mhz[sysclk_ind], DPLL_LOCK);
/*
* USB:
* USB dpll is J-type. Need to set DPLL_SD_DIV for jitter correction
* DPLL_SD_DIV = CEILING ([DPLL_MULT/(DPLL_DIV+1)]* CLKINP / 250)
* - where CLKINP is sys_clk in MHz
* Use CLKINP in KHz and adjust the denominator accordingly so
* that we have enough accuracy and at the same time no overflow
*/
params = &usb_dpll_params_1920mhz[sysclk_ind];
num = params->m * sys_clk_khz;
den = (params->n + 1) * 250 * 1000;
num += den - 1;
sd_div = num / den;
clrsetbits_le32(&prcm->cm_clksel_dpll_usb,
CM_CLKSEL_DPLL_DPLL_SD_DIV_MASK,
sd_div << CM_CLKSEL_DPLL_DPLL_SD_DIV_SHIFT);
/* Now setup the dpll with the regular function */
do_setup_dpll(&prcm->cm_clkmode_dpll_usb, params, DPLL_LOCK);
#ifdef CONFIG_SYS_OMAP4_ABE_SYSCK
params = &abe_dpll_params_sysclk_196608khz[sysclk_ind];
abe_ref_clk = CM_ABE_PLL_REF_CLKSEL_CLKSEL_SYSCLK;
#else
params = &abe_dpll_params_32k_196608khz;
abe_ref_clk = CM_ABE_PLL_REF_CLKSEL_CLKSEL_32KCLK;
/*
* We need to enable some additional options to achieve
* 196.608MHz from 32768 Hz
*/
setbits_le32(&prcm->cm_clkmode_dpll_abe,
CM_CLKMODE_DPLL_DRIFTGUARD_EN_MASK|
CM_CLKMODE_DPLL_RELOCK_RAMP_EN_MASK|
CM_CLKMODE_DPLL_LPMODE_EN_MASK|
CM_CLKMODE_DPLL_REGM4XEN_MASK);
/* Spend 4 REFCLK cycles at each stage */
clrsetbits_le32(&prcm->cm_clkmode_dpll_abe,
CM_CLKMODE_DPLL_RAMP_RATE_MASK,
1 << CM_CLKMODE_DPLL_RAMP_RATE_SHIFT);
#endif
/* Select the right reference clk */
clrsetbits_le32(&prcm->cm_abe_pll_ref_clksel,
CM_ABE_PLL_REF_CLKSEL_CLKSEL_MASK,
abe_ref_clk << CM_ABE_PLL_REF_CLKSEL_CLKSEL_SHIFT);
/* Lock the dpll */
do_setup_dpll(&prcm->cm_clkmode_dpll_abe, params, DPLL_LOCK);
}
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);
}
