void hw_init(void)
{
/* Disable watchdog */
at91_disable_wdt();
/* At this stage the main oscillator is supposed
* to be enabled PCK = MCK = MOSC
*/
/* Configure PLLA = MOSC * (PLL_MULA + 1) / PLL_DIVA */
pmc_cfg_plla(PLLA_SETTINGS, PLL_LOCK_TIMEOUT);
/* Initialize PLLA charge pump */
/* not needed for SAMA5D4 */
pmc_init_pll(0);
/* Switch MCK on PLLA output */
pmc_cfg_mck(BOARD_PRESCALER_PLLA, PLL_LOCK_TIMEOUT);
/* Setup AHB 32-bit Matrix Divisor */
pmc_cfg_h32mxdiv(BOARD_H32MX, PLL_LOCK_TIMEOUT);
/* Enable External Reset */
writel(AT91C_RSTC_KEY_UNLOCK | AT91C_RSTC_URSTEN,
AT91C_BASE_RSTC + RSTC_RMR);
#if defined(CONFIG_ENTER_NWD)
cpacr_init();
/* Program the DACR to allow client access to *all* domains */
dacr_swd_init();
#endif
#if defined(CONFIG_MATRIX)
/* Initialize the matrix */
matrix_init();
#endif
/* initialize the dbgu */
initialize_dbgu();
/* Redirect all interrupts to non-secure AIC */
redirect_interrupts_to_aic();
#if defined(CONFIG_MATRIX)
matrix_read_slave_security();
matrix_read_periperal_security();
#endif
/* Init timer */
timer_init();
#ifdef CONFIG_DDR2
/* Initialize MPDDR Controller */
ddramc_init();
#endif
/* load one wire information */
one_wire_hw_init();
/* Reset HDMI SiI9022 */
SiI9022_hw_reset();
/* Disable software modem device's clock */
at91_disable_smd_clock();
#ifdef CONFIG_TWI
twi_init();
#endif
#ifdef CONFIG_ACT8865
/* Set ACT8865 REG power saving mode */
act8865_set_power_saving_mode();
/* Set ACT8865 output voltage */
sama5d4ek_act8865_set_reg_voltage();
/* Dsiable ACT8865 I2C interface */
if (act8865_workaround_disable_i2c())
while (1)
;
#endif
#ifdef CONFIG_PM_EXTERNAL_DEVICES
#ifdef CONFIG_HDMI
SiI9022_enter_power_state_D3_Cold();
#endif
#ifdef CONFIG_WM8904
wm8904_enter_low_power();
#endif
#ifdef CONFIG_MACB
/* Make PHYs to power down mode */
phys_enter_power_down();
#endif
#endif /* #ifdef CONFIG_PM_EXTERNAL_DEVICES */
#ifdef CONFIG_USER_HW_INIT
hw_init_hook();
#endif
}
void hw_init(void)
{
/* Disable watchdog */
at91_disable_wdt();
/*
* At this stage the main oscillator
* is supposed to be enabled PCK = MCK = MOSC
*/
/* Configure PLLA = MOSC * (PLL_MULA + 1) / PLL_DIVA */
pmc_cfg_plla(PLLA_SETTINGS, PLL_LOCK_TIMEOUT);
/* Initialize PLLA charge pump */
pmc_init_pll(AT91C_PMC_IPLLA_3);
/* Switch PCK/MCK on Main clock output */
pmc_cfg_mck(BOARD_PRESCALER_MAIN_CLOCK, PLL_LOCK_TIMEOUT);
/* Switch PCK/MCK on PLLA output */
pmc_cfg_mck(BOARD_PRESCALER_PLLA, PLL_LOCK_TIMEOUT);
#ifdef CONFIG_USER_HW_INIT
/* Set GMAC & EMAC pins to output low */
at91_special_pio_output_low();
#endif
/* Disable the software modem clock */
at91_disable_smd_clock();
/* Init timer */
timer_init();
#ifdef CONFIG_SCLK
slowclk_enable_osc32();
#endif
/* initialize the dbgu */
initialize_dbgu();
#ifdef CONFIG_DDR2
/* Initialize MPDDR Controller */
ddramc_init();
#endif
#ifdef CONFIG_TWI
twi_init();
#endif
#ifdef CONFIG_ACT8865
/* Set ACT8865 REG power saving mode */
act8865_set_power_saving_mode();
/* Set ACT8865 output voltage */
sama5d4ek_act8865_set_reg_voltage();
/* Dsiable ACT8865 I2C interface */
if (act8865_workaround_disable_i2c())
while (1)
;
#endif
#ifdef CONFIG_PM_EXTERNAL_DEVICES
#ifdef CONFIG_MACB
/* Make PHYs to power down mode */
phys_enter_power_down();
#endif
#endif /* #ifdef CONFIG_PM_EXTERNAL_DEVICES */
}