/*******************************************************
* Routine: misc_init_r
* Description: Init ethernet (done here so udelay works)
********************************************************/
int misc_init_r(void)
{
#ifdef CONFIG_DRIVER_OMAP34XX_I2C
unsigned char data;
i2c_init(CFG_I2C_SPEED, CFG_I2C_SLAVE);
twl4030_power_reset_init();
/* see if we need to activate the power button startup */
char *s = getenv("pbboot");
if (s) {
/* figure out why we have booted */
i2c_read(0x4b, 0x3a, 1, &data, 1);
/* if status is non-zero, we didn't transition
* from WAIT_ON state
*/
if (data) {
printf("Transitioning to Wait State (%x)\n", data);
/* clear status */
data = 0;
i2c_write(0x4b, 0x3a, 1, &data, 1);
/* put PM into WAIT_ON state */
data = 0x01;
i2c_write(0x4b, 0x46, 1, &data, 1);
/* no return - wait for power shutdown */
while (1) {;}
}
printf("Transitioning to Active State (%x)\n", data);
/* turn on long pwr button press reset*/
data = 0x40;
i2c_write(0x4b, 0x46, 1, &data, 1);
printf("Power Button Active\n");
}
#endif
//&*&*&*20101201_Peter ++
twl4030_usb_init();
twl4030_keypad_init();
twl4030_madc_init();
twl4030_vadc_onoff(1);
//&*&*&*20101201_Peter --
dieid_num_r();
return (0);
}
/*
* Routine: misc_init_r
* Description: Configure board specific parts
*/
int misc_init_r(void)
{
int err;
hw_boot_status status_bits;
unsigned short reg;
unsigned char val;
u8 data;
/*
* Configure drive strength for IO cells
*/
// already pulled up on board
//*(ulong *)(CONTROL_PROG_IO1) &= ~(PRG_I2C2_PULLUPRESX);
_board_revision();
printf("%s: initialize TPS65950 voltages\n", __func__);
twl4030_power_init();
printf("%s: select TPS65950 power-on HW transitions(PWRON and RTC)\n", __func__);
twl4030_set_px_transition(0x07, 0x49);
printf("%s: select 1-GHz MPU clock\n", __func__);
// 26 MHz * 500 / (12 + 1)
select_mpu_clock(500, 12);
lcd_config();
printf("%s: initialize all peripherals\n", __func__);
omap_request_gpio(27); // Enable periph 3V
omap_request_gpio(34); // reset USBHUB
omap_request_gpio(38); // disable CAN
omap_request_gpio(40); // reset modem
omap_request_gpio(41); // disable modem
omap_request_gpio(42); // reset CAP touch
omap_request_gpio(43); // off CAN
omap_request_gpio(61); // off modem
omap_request_gpio(64); // off GPS
omap_request_gpio(65); // off USB PHY
omap_request_gpio(94); // automotive out high
omap_request_gpio(95); // Wireless module VIO 1.8 V
omap_request_gpio(98); // DEVICE_EN
omap_request_gpio(111); // off USB PHY
omap_request_gpio(136); // Wireless module VDD 3.6 V
omap_request_gpio(137); // BT_EN
omap_request_gpio(138); // WL_EN
omap_request_gpio(144); // disable GPS
omap_request_gpio(145); // reset GPS
omap_request_gpio(146); // disable GPS boot
omap_request_gpio(161); // select microphone
omap_request_gpio(162); // serial transmitter force on
omap_request_gpio(175); // shutdown internal speaker amplifier
omap_request_gpio(176); // shutdown external speaker amplifier
omap_request_gpio(177); // enable external I2C device
omap_request_gpio(186); // PWR_ON generator
// Enable serial ports transceiver
omap_set_gpio_dataout(162, 1);
omap_set_gpio_direction(162, 0);
omap_set_gpio_dataout(98, 0);
omap_set_gpio_direction(98, 0);
omap_set_gpio_dataout(94, 0);
omap_set_gpio_direction(94, 0);
// enable peripheral 3.3 V
omap_set_gpio_dataout(27, 1);
omap_set_gpio_direction(27, 0);
// PWR_ON generator will off
omap_set_gpio_dataout(186, 1);
omap_set_gpio_direction(186, 0);
// disable BT
omap_set_gpio_dataout(137, 0);
omap_set_gpio_direction(137, 0);
// disable WL
omap_set_gpio_dataout(138, 0);
omap_set_gpio_direction(138, 0);
// wireless VIO 1.8V off
omap_set_gpio_dataout(95, 0);
omap_set_gpio_direction(95, 0);
// remove wireless VDD 3.6 V
omap_set_gpio_dataout(136, 0);
omap_set_gpio_direction(136, 0);
udelay(100000);
// Supply VDD and VIO to WiFi
omap_set_gpio_dataout(136, 1);
omap_set_gpio_dataout(95, 1);
udelay(100000);
// enable digital PADs
// MMC2
MUX_VAL(CP(MMC2_CLK), (IEN | PTU | EN | M0))
MUX_VAL(CP(MMC2_CMD), (IEN | PTU | EN | M0))
MUX_VAL(CP(MMC2_DAT0), (IEN | PTU | EN | M0))
MUX_VAL(CP(MMC2_DAT1), (IEN | PTU | EN | M0))
MUX_VAL(CP(MMC2_DAT2), (IEN | PTU | EN | M0))
MUX_VAL(CP(MMC2_DAT3), (IEN | PTU | EN | M0))
// UART2
MUX_VAL(CP(MCBSP3_FSX), (IEN | PTD | DIS | M1))
MUX_VAL(CP(MCBSP3_CLKX),(IDIS | PTD | DIS | M1))
MUX_VAL(CP(MCBSP3_DR), (IDIS | PTD | DIS | M1))
MUX_VAL(CP(MCBSP3_DX), (IEN | PTD | DIS | M1))
udelay(200000);
// pulse enable pins
// enable WL
omap_set_gpio_dataout(138, 1);
// enable BT
omap_set_gpio_dataout(137, 1);
udelay(200000);
// Valdimir: temporary enabled
// disable BT
//omap_set_gpio_dataout(137, 0);
// disable WL
//omap_set_gpio_dataout(138, 0);
omap_set_gpio_dataout(41, 0);
omap_set_gpio_direction(41, 0);
omap_set_gpio_dataout(40, 0);
omap_set_gpio_direction(40, 0);
omap_set_gpio_dataout(61, 0);
omap_set_gpio_direction(61, 0);
omap_set_gpio_dataout(144, 0);
omap_set_gpio_direction(144, 0);
omap_set_gpio_dataout(145, 0);
omap_set_gpio_direction(145, 0);
omap_set_gpio_dataout(146, 0);
omap_set_gpio_direction(146, 0);
omap_set_gpio_dataout(64, 0);
omap_set_gpio_direction(64, 0);
omap_set_gpio_dataout(38, 0);
omap_set_gpio_direction(38, 0);
omap_set_gpio_dataout(43, 0);
omap_set_gpio_direction(43, 0);
omap_set_gpio_dataout(42, 0);
omap_set_gpio_direction(42, 0);
omap_set_gpio_dataout(34, 0);
omap_set_gpio_direction(34, 0);
omap_set_gpio_dataout(111, 1);
omap_set_gpio_direction(111, 0);
omap_set_gpio_dataout(65, 0);
omap_set_gpio_direction(65, 0);
// enable internal speaker amplifier
omap_set_gpio_dataout(175, 0);
omap_set_gpio_direction(175, 0);
// shutdown external speaker amplifier
omap_set_gpio_dataout(176, 0);
omap_set_gpio_direction(176, 0);
// select internal microphone
omap_set_gpio_dataout(161, 0);
omap_set_gpio_direction(161, 0);
// External I2C Bus enable
omap_set_gpio_dataout(177, 0);
omap_set_gpio_direction(177, 0);
omap_free_gpio(27);
omap_free_gpio(34);
omap_free_gpio(38);
omap_free_gpio(40);
omap_free_gpio(41);
omap_free_gpio(42);
omap_free_gpio(43);
omap_free_gpio(61);
omap_free_gpio(64);
omap_free_gpio(65);
omap_free_gpio(94);
omap_free_gpio(95);
omap_free_gpio(98);
omap_free_gpio(111);
omap_free_gpio(136);
omap_free_gpio(137);
omap_free_gpio(138);
omap_free_gpio(144);
omap_free_gpio(145);
omap_free_gpio(146);
omap_free_gpio(161);
omap_free_gpio(162);
omap_free_gpio(175);
omap_free_gpio(177);
omap_free_gpio(186);
printf("%s: initialize all peripherals done\n", __func__);
twl4030_keypad_init();
// TODO: thermal shutdown and dynamic frequency scaling
// TPS659XX PHY 3.3 V recovery workaround
// Status bits read from companion chip and OMAP
twl4030_i2c_read_u8(TWL4030_CHIP_RTC, &data, TWL_BACKUP_REG_G); //TWL_BACKUP_REG_G - set in thermal driver
status_bits.thermal = data;
twl4030_i2c_read_u8(TWL4030_CHIP_RTC, &data, TWL_RTC_STATUS_REG); //TWL_RTC_STATUS_REG
status_bits.rtc_power_up = (data & TWL_RTC_STATUS_POWER_UP) ? 1 : 0;
status_bits.rtc_alarm = (data & TWL_RTC_STATUS_ALARM) ? 1 : 0;
status_bits.rtc_event = (data & (TWL_RTC_STATUS_ONE_D_EVENT | TWL_RTC_STATUS_ONE_H_EVENT |
TWL_RTC_STATUS_ONE_M_EVENT | TWL_RTC_STATUS_ONE_S_EVENT))? 1 : 0;
twl4030_i2c_read_u8(TWL4030_CHIP_RTC, &data, TWL_RTC_INTERRUPTS_REG); //TWL_RTC_INTERRUPTS_REG
status_bits.rtc_it_timer = (data & TWL_RTC_INTERRUPTS_IT_TIMER) ? 1 : 0;
status_bits.rtc_it_alarm = (data & TWL_RTC_INTERRUPTS_IT_ALARM) ? 1 : 0;
twl4030_i2c_read_u8(TWL4030_CHIP_RTC, &data, TWL_STS_BOOT); //TWL_STS_BOOT
status_bits.watchdog_reset = (data & (1<<5)) ? 1 : 0;//TWL_WATCHDOG_RESET
twl4030_i2c_read_u8(TWL4030_CHIP_RTC, &data, TWL_STS_HW_CONDITIONS); //TWL_STS_HW_CONDITIONS
status_bits.sts_pwon = (data & 1) ? 1 : 0; //STS_PWON
status_bits.sts_warmreset = (data & (1<<3)) ? 1 : 0; //STS_WARMRESET
twl4030_i2c_read_u8(TWL4030_CHIP_RTC, &data, TWL_PWR_ISR1); //TWL_PWR_ISR1
status_bits.isr_pwron = (data & STARTON_RTC) ? 1 : 0;
status_bits.isr_rtc_it = (data & STARTON_PWON) ? 1 : 0;
status_bits.prm_rstst = readl(OMAP_PRCM_PRM_RSTST);
char str[9];
sprintf(str, "%d", status_bits.bits);
setenv("hw_stat", str);
printf("Status bits [0x%x] [%s]\n", status_bits.bits, str);
printf("Board Revision A317 (%d)\n", board_revision);
sprintf(str, "%s", "A-317");
setenv("product", str);
dieid_num_r();
return 0;
}
