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/* includes */
#include "mv_os.h"
#include "config_marvell.h"  	/* Required to identify SOC and Board */
#include "mvUart.h"
#include "util.h"
#include "generalInit.h"
#include "printf.h"
#include "mvSysEnvLib.h"

/******************************************************************************************
* mvDeviceIdConfig - set SoC Unit configuration and device ID according to detected flavour
*******************************************************************************************/
static MV_VOID mvDeviceIdConfig(void)
{
	MV_DEVICE_ID_VAL dev_id_val[] = MV_DEVICE_ID_VAL_INFO;
	MV_U32 ctrlId, devId = mvSysEnvDeviceIdGet(); /* read Sample at reset for device ID*/

	/* Verify Marvell A38x boards limitation */
#if !defined(CONFIG_CUSTOMER_BOARD_SUPPORT) && defined(MV88F68XX)
	/* only A381/2 board support 6821 device ID */
	if (devId == MV_6811 && mvBoardIdGet() != DB_BP_6821_ID)
		mvPrintf("%s: Error: Device 6811/21 is not supported on current board (only A381/2 DB-BP)\n", __func__);
#endif

	if (devId == MV_NONE) {
		mvPrintf("%s: Error: Read an unknown device ID from 'S@R'\n", __func__);
#if !defined(CONFIG_CUSTOMER_BOARD_SUPPORT)
		mvPrintf("Setting default device ID\n");
		devId = MV_DEFAULT_DEVICE_ID; /* fallback to default only for Marvell boards */
#endif

	}
	/* Configure Units according to detected deviceId (flavor) */
	MV_REG_WRITE(DEVICE_CONFIGURATION_REG0, dev_id_val[devId].wo_reg_val0);
	MV_REG_WRITE(DEVICE_CONFIGURATION_REG1, dev_id_val[devId].wo_reg_val1);

	/* set device ID register (flavor) */
	ctrlId = MV_REG_READ(DEV_ID_REG) & ~DEV_ID_REG_DEVICE_ID_MASK;
	ctrlId |= dev_id_val[devId].ctrlModel << DEV_ID_REG_DEVICE_ID_OFFS;
	MV_REG_WRITE(DEV_ID_REG, ctrlId);
}

/* mvMppConfig() prepares UART and I2C configuration (MPP's and UART interface selection) */
static inline MV_VOID mvMppConfig()
{
        /* UART0 & I2C MPP's (MPP[0:3] = 0x1) */
        MV_U32 regData = (MV_REG_READ(MPP_CONTROL_REG(0))  & MPP_SET_MASK) | MPP_SET_DATA;
        MV_REG_WRITE(MPP_CTRL_REG, regData);

        /* UART1 MPP's (MPP[19:20] = 0x6) - UART1 is the default UART interface on DB-AP-68xx */
        regData = (MV_REG_READ(MPP_CONTROL_REG(2))  & MPP_UART1_SET_MASK) | MPP_UART1_SET_DATA;
        MV_REG_WRITE(MPP_CONTROL_REG(2), regData);
}

MV_STATUS mvGeneralInit(void)
{
	MV_U32 regData;

	/* Update AVS debug control register */
        MV_REG_WRITE(AVS_DEBUG_CNTR_REG, AVS_DEBUG_CNTR_DEFAULT_VALUE);

        regData = MV_REG_READ(AVS_ENABLED_CONTROL);
        regData &= ~(AVS_LOW_VDD_LIMIT_MASK | AVS_HIGH_VDD_LIMIT_MASK);
	regData |= (AVS_LOW_VDD_LIMIT_VAL | AVS_HIGH_VDD_LIMIT_VAL);
        MV_REG_WRITE(AVS_ENABLED_CONTROL, regData);

	mvMppConfig();

	/* - Init the TWSI before all I2C transaction */
	DEBUG_INIT_FULL_S("mvGeneralInit: Init TWSI interface.\n");
	mvHwsTwsiInitWrapper();

#if !defined(MV_NO_PRINT)
	mvUartInit();
	mvPrintf("\n\nGeneral initialization - Version: " GENERAL_VERION "\n");
#endif

	/* Device general configuration was not supported on a38x Z0 revision */
	if (mvSysEnvDeviceRevGet() != MV_88F68XX_Z1_ID)
		mvDeviceIdConfig();

	return MV_OK;
}