mtk-lk/platform/mt6735/mt8193_init.c

/* Copyright Statement:
 *
 * This software/firmware and related documentation ("MediaTek Software") are
 * protected under relevant copyright laws. The information contained herein
 * is confidential and proprietary to MediaTek Inc. and/or its licensors.
 * Without the prior written permission of MediaTek inc. and/or its licensors,
 * any reproduction, modification, use or disclosure of MediaTek Software,
 * and information contained herein, in whole or in part, shall be strictly prohibited.
 */
/* MediaTek Inc. (C) 2010. All rights reserved.
 *
 * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
 * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
 * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
 * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
 * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
 * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
 * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
 * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
 * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
 * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
 * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
 * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
 * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
 * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
 * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
 * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
 *
 * The following software/firmware and/or related documentation ("MediaTek Software")
 * have been modified by MediaTek Inc. All revisions are subject to any receiver's
 * applicable license agreements with MediaTek Inc.
 */


#include <platform/mt8193.h>
#include <platform/mt_typedefs.h>
#include <platform/mt_i2c.h>
#include <platform/mt_gpt.h>


#ifdef MT8193_DISABLE_EXT_CLK_BUF
#define MT8193_DISABLE_DCXO 1
#else
#define MT8193_DISABLE_DCXO 0
#endif

#define MT8193_DISABLE_LVDS 1
#define MT8193_DISABLE_HDMI 1

#define MT8193_TOGGLE_PLLGP 1


#if MT8193_DISABLE_LVDS

void mt8193_lvds_pd(void)
{
    printf("mt8193_lvds_pd()\n");
    CKGEN_WRITE32(REG_LVDS_PWR_CTRL, 0x00000006);
	CKGEN_WRITE32(REG_LVDS_PWR_CTRL, 0x00000007);
    CKGEN_WRITE32(REG_LVDS_PWR_RST_B, 0x00000000);
	CKGEN_WRITE32(REG_LVDS_PWR_CTRL, 0x00000005);
}

#endif

#if MT8193_DISABLE_HDMI //mtk40224
void mt8193_hdmi_pd(void)
{
	printf("mt8193_hdmi_pd()\n");

    CKGEN_WRITE32(REG_HDMI_PWR_CTRL, 0x00000006);
	CKGEN_WRITE32(REG_HDMI_PWR_CTRL, 0x00000007);
    CKGEN_WRITE32(REG_HDMI_PWR_RST_B, 0x00000000);
	CKGEN_WRITE32(REG_HDMI_PWR_CTRL, 0x00000005);
}
#endif

#if MT8193_DISABLE_DCXO

/* Turn off BT clock buffer */
void mt8193_dxco_bt_disable(void)
{
    printf("mt8193_dxco_bt_disable()\n");

    u32 u4Tmp = 0;

    /* set bt clock buffer manual mode */
    u4Tmp = CKGEN_READ32(REG_RW_DCXO_ANACFG4);
	u4Tmp &= (~DCXO_ANACFG4_BT_MAN);
	CKGEN_WRITE32(REG_RW_DCXO_ANACFG4, u4Tmp);

    /* disable dcxo ldo2 at manual mode */
    u4Tmp = CKGEN_READ32(REG_RW_DCXO_ANACFG2);
	u4Tmp &= (~DCXO_ANACFG2_LDO2_MAN_EN);
	CKGEN_WRITE32(REG_RW_DCXO_ANACFG2, u4Tmp);

	/* disable dcxo ldo2*/
    u4Tmp = CKGEN_READ32(REG_RW_DCXO_ANACFG2);
	u4Tmp &= (~DCXO_ANACFG2_LDO2_EN);
	CKGEN_WRITE32(REG_RW_DCXO_ANACFG2, u4Tmp);



	
}

/* Turn off ext1 clock buffer */
void mt8193_dxco_ext1_disable(void)
{
    printf("mt8193_dxco_ext1_disable()\n");

    u32 u4Tmp = 0;

    /* set ext1 clock buffer manual mode */
    u4Tmp = CKGEN_READ32(REG_RW_DCXO_ANACFG4);
	u4Tmp &= (~DCXO_ANACFG4_EXT1_MAN);
	CKGEN_WRITE32(REG_RW_DCXO_ANACFG4, u4Tmp);

    /* disable dcxo ldo3 at manual mode */
    u4Tmp = CKGEN_READ32(REG_RW_DCXO_ANACFG2);
	u4Tmp &= (~DCXO_ANACFG2_LDO3_MAN_EN);
	CKGEN_WRITE32(REG_RW_DCXO_ANACFG2, u4Tmp);

	/* disable dcxo ldo3*/
    u4Tmp = CKGEN_READ32(REG_RW_DCXO_ANACFG2);
	u4Tmp &= (~DCXO_ANACFG2_LDO3_EN);
	CKGEN_WRITE32(REG_RW_DCXO_ANACFG2, u4Tmp);
}

/* Turn off ext2 clock buffer */
void mt8193_dxco_ext2_disable(void)
{
    printf("mt8193_dxco_ext2_disable()\n");

    u32 u4Tmp = 0;

    /* set ext2 clock buffer manual mode */
    u4Tmp = CKGEN_READ32(REG_RW_DCXO_ANACFG4);
	u4Tmp &= (~DCXO_ANACFG4_EXT2_MAN);
	CKGEN_WRITE32(REG_RW_DCXO_ANACFG4, u4Tmp);

    /* disable dcxo ldo4 at manual mode */
    u4Tmp = CKGEN_READ32(REG_RW_DCXO_ANACFG2);
	u4Tmp &= (~DCXO_ANACFG2_LDO4_MAN_EN);
	CKGEN_WRITE32(REG_RW_DCXO_ANACFG2, u4Tmp);

	/* disable dcxo ldo4*/
    u4Tmp = CKGEN_READ32(REG_RW_DCXO_ANACFG2);
	u4Tmp &= (~DCXO_ANACFG2_LDO4_EN);
	CKGEN_WRITE32(REG_RW_DCXO_ANACFG2, u4Tmp);
}

#endif


int mt8193_io_init(void)
{
    printf("lk mt8193_io_init() enter\n");

    u32 u4Tmp = 0;

    /* Modify some pad multi function as function 1*/
 
    u4Tmp = CKGEN_READ32(REG_RW_PMUX1);
    u4Tmp |= (1<<PMUX1_PAD_G0_FUNC);
    u4Tmp |= (1<<PMUX1_PAD_B5_FUNC);
    u4Tmp |= (1<<PMUX1_PAD_B4_FUNC);
    CKGEN_WRITE32(REG_RW_PMUX1, u4Tmp);

    u4Tmp = CKGEN_READ32(REG_RW_PMUX2);
    u4Tmp |= (1<<PMUX2_PAD_B3_FUNC);
    u4Tmp |= (1<<PMUX2_PAD_B2_FUNC);
    u4Tmp |= (1<<PMUX2_PAD_B1_FUNC);
    u4Tmp |= (1<<PMUX2_PAD_B0_FUNC);
    u4Tmp |= (1<<PMUX2_PAD_DE_FUNC);
    u4Tmp |= (1<<PMUX2_PAD_VCLK_FUNC);
    u4Tmp |= (1<<PMUX2_PAD_HSYNC_FUNC);
    u4Tmp |= (1<<PMUX2_PAD_VSYNC_FUNC);
    CKGEN_WRITE32(REG_RW_PMUX2, u4Tmp);
    

    printf("lk mt8193_io_init() exit\n");

    return 0;
}



#if MT8193_TOGGLE_PLLGP
void mt8193_pllgp_toggle()
{
    u32 u4Tmp = 0;
    printf("mt8193_pllgp_toggle() \n");

    /* power off */
    u4Tmp = CKGEN_READ32(REG_RW_PLLGP_ANACFG0);
    u4Tmp &= (~PLLGP_ANACFG0_PLL1_EN);
    CKGEN_WRITE32(REG_RW_PLLGP_ANACFG0, u4Tmp);
        
    u4Tmp = CKGEN_READ32(REG_RW_PLLGP_ANACFG0);
    u4Tmp &= (~PLLGP_ANACFG0_PLL1_NFIPLL_EN);
    CKGEN_WRITE32(REG_RW_PLLGP_ANACFG0, u4Tmp);

	
    u4Tmp = CKGEN_READ32(REG_RW_PLLGP_ANACFG2);
    u4Tmp &= (~PLLGP_ANACFG2_PLLGP_BIAS_EN);
    CKGEN_WRITE32(REG_RW_PLLGP_ANACFG2, u4Tmp);

    /* power on */

    u4Tmp = CKGEN_READ32(REG_RW_PLLGP_ANACFG2);
    u4Tmp |= (PLLGP_ANACFG2_PLLGP_BIAS_EN);
    CKGEN_WRITE32(REG_RW_PLLGP_ANACFG2, u4Tmp);

    mdelay(1);
    
    u4Tmp = CKGEN_READ32(REG_RW_PLLGP_ANACFG0);
    u4Tmp |= (PLLGP_ANACFG0_PLL1_NFIPLL_EN);
    CKGEN_WRITE32(REG_RW_PLLGP_ANACFG0, u4Tmp);

    mdelay(1);

    u4Tmp = CKGEN_READ32(REG_RW_PLLGP_ANACFG0);
    u4Tmp |= (PLLGP_ANACFG0_PLL1_EN);
    CKGEN_WRITE32(REG_RW_PLLGP_ANACFG0, u4Tmp);
   
}
#endif


int mt8193_init(void)
{
	printf("uboot mt8193_init() enter\n");

#if MT8193_TOGGLE_PLLGP
    mt8193_pllgp_toggle();
#endif


#if MT8193_DISABLE_LVDS
    /* Power down lvds digital here. 
           If the project use 8193 LVDS, it will power on in LCM driver*/
    mt8193_lvds_pd();
#endif
#if MT8193_DISABLE_HDMI //mtk40224
	mt8193_hdmi_pd();
#endif 
	  
    mt8193_io_init();
    
#if MT8193_DISABLE_DCXO
    /* disable external clock buffer for power consumption issue except wifi only platform */
    mt8193_dxco_bt_disable();
    mt8193_dxco_ext1_disable();
    mt8193_dxco_ext2_disable();
        
#endif
      
	  printf("uboot mt8193_init() exit\n");
	  
    return (0);
}