【MTK】EMMC移植问题【二】_没有mtk 的preloader源码如何支持不同ddr和emmc
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有的可能烧入不了，或者无法开就需要调节 时序 电压和频率
1、修改DDR时序
vendor/mediatek/proprietary/bootable/bootloader/preloader/tools/emigen/MT6735/MemoryDeviceList_MT6737M.xls
1. 其中 H9CCNNN8GTMLAR 为 2G DRAM(8192+8192)，可配置为1G DRAM(8192 或 4096+4096)，其余均不需动
2. 其中MODE_REG3由“0x00020003”修改为“0x00010003” -> 增强驱动能力
3. 其中CONA_VAL不对会导致编译报错
Samsung KMK7U000VM_B309 MCP(eMMC+LPDDR2) 4096+4096 MT6735_EVB 0x1501004B375530304D (4096+4096) 1GDRAM
KMK7U000VM_B309 Samsung 2048 2048 128 0 0 0 0 7634944 7460 (7460) 8GDROM
2、修改DDR频率 - 需要关闭DVFS
1. vendor/mediatek/proprietary/bootable/bootloader/preloader/platform/mt6735/src/drivers/pll2.c
void mt_pll_post_init(void)
+ /*
if (D2Plus == 1) {
mt_mempll_init(DDR1280, PLL_MODE_1);
memfreq_val = 1280000;
} else {
mt_mempll_init(DDR1066, PLL_MODE_1);
memfreq_val = 1066000;
}
+ */
+ mt_mempll_init(DDR1066, PLL_MODE_1); // DDR800
+ memfreq_val = 1066000; // 800000
2. 如果缺少所需频率，可以自己添加:
vendor/mediatek/proprietary/bootable/bootloader/preloader/platform/mt6735/src/drivers/pll2.c
void mt_mempll_init(int type, int pll_mode)
else if (type == DDR850)
{
*((UINT32P)(DDRPHY_BASE + (0x0183 <<2))) = (*((UINT32P)(DDRPHY_BASE + (0x0183 <<2))) & (~mempll2_vco_div_sel)) | 0x00000000; //RG_MEMPLL2_VCO_DIV_SEL =0;
*((UINT32P)(DDRPHY_BASE + (0x0185 <<2))) = (*((UINT32P)(DDRPHY_BASE + (0x0185 <<2))) & (~mempll3_vco_div_sel)) | 0x00000000; //RG_MEMPLL3_VCO_DIV_SEL =0;
*((UINT32P)(DDRPHY_BASE + (0x0187 <<2))) = (*((UINT32P)(DDRPHY_BASE + (0x0187 <<2))) & (~mempll4_vco_div_sel)) | 0x00000000; //RG_MEMPLL4_VCO_DIV_SEL =0;
*((UINT32P)(DDRPHY_BASE + (0x0189 <<2))) = (*((UINT32P)(DDRPHY_BASE + (0x0189 <<2))) & (~pllc1_dmss_pcw_ncpo_30_0)) | (0x338da215 << 1); //RG_DMSS_PCW_NCPO[30:0]
if ((pll_mode == PLL_MODE_3) || (pll_mode == PLL_MODE_2))
{
*((UINT32P)(DDRPHY_BASE + (0x0182 <<2))) = (*((UINT32P)(DDRPHY_BASE + (0x0182 <<2))) & (~mempll2_fbdiv_6_0)) | (0x0000000d << 2); //RG_MEMPLL2_FBDIV = 7'h0d;
*((UINT32P)(DDRPHY_BASE + (0x0184 <<2))) = (*((UINT32P)(DDRPHY_BASE + (0x0184 <<2))) & (~mempll3_fbdiv_6_0)) | (0x0000000d << 2); //RG_MEMPLL3_FBDIV = 7'h0d;
*((UINT32P)(DDRPHY_BASE + (0x0186 <<2))) = (*((UINT32P)(DDRPHY_BASE + (0x0186 <<2))) & (~mempll4_fbdiv_6_0)) | (0x0000000d << 2); //RG_MEMPLL4_FBDIV = 7'h0d;
}
else
{
*((UINT32P)(DDRPHY_BASE + (0x0182 <<2))) = (*((UINT32P)(DDRPHY_BASE + (0x0182 <<2))) & (~mempll2_fbdiv_6_0)) | (0x00000034 << 2); //RG_MEMPLL2_FBDIV = 7'h34;
*((UINT32P)(DDRPHY_BASE + (0x0184 <<2))) = (*((UINT32P)(DDRPHY_BASE + (0x0184 <<2))) & (~mempll3_fbdiv_6_0)) | (0x00000034 << 2); //RG_MEMPLL3_FBDIV = 7'h34;
*((UINT32P)(DDRPHY_BASE + (0x0186 <<2))) = (*((UINT32P)(DDRPHY_BASE + (0x0186 <<2))) & (~mempll4_fbdiv_6_0)) | (0x00000034 << 2); //RG_MEMPLL4_FBDIV = 7'h34;
}
}
vendor/mediatek/proprietary/bootable/bootloader/preloader/platform/mt6735/src/drivers/inc/pll2.h
enum {
DDR533 = 533,
+ DDR850 = 850,
DDR938 = 938,
DDR1066 = 1066,
DDR1280 = 1280,
DDR1333 = 1333,
DDR1466 = 1466,
};
3.4两步骤关闭DVFS(动态电压频率调节) - 不修改的话内核会动态调节，修改频率不会生效
3. alps\vendor\mediatek\proprietary\bootable\bootloader\preloader\platform\mt6735\src\drivers\inc\dramc2.h
- #define ENABLE_DFS
+ //#define ENABLE_DFS
4. alps/kernel-3.18/drivers/misc/mediatek/base/power/mt6735/mt_vcore_dvfs_2.c
- static bool feature_en __nosavedata = 1; /* if feature disable, then keep HPM */
+ static bool feature_en __nosavedata = 0; /* if feature disable, then keep HPM */
3、修改DDR电压
电压调节函数
pmic_Vcore_adjust();
pmic_Vmem_adjust();
pmic_Vmem_Cal_adjust();
方法一：
vendor/mediatek/proprietary/bootable/bootloader/preloader/platform/mt6735/src/drivers/emi.c
else if ((emi_set->type & 0xF) == TYPE_LPDDR3)
{
#ifdef REXTDN_ENABLE
ett_rextdn_sw_calibration();
#endif
+ pmic_config_interface(MT6328_SLDO_ANA_CON0, 0, 0x3, 0); // 1.24V 参数中第一位寄存器值，第二位就是我们要设的电压值，第三位读取位数
+ pmic_config_interface(MT6328_SLDO_ANA_CON1, 0x0D, 0xF, 8); // +0.6V
方法二：
1. 在preloader初始化的时候添加调整DDR电压的步骤
vendor/mediatek/proprietary/bootable/bootloader/preloader/platform/mt6735/src/drivers/platform.c
void platform_pre_init(void)
{
mtk_timer_init();
g_boot_time = get_timer(0);
mtk_uart_init(UART_SRC_CLK_FRQ, CFG_LOG_BAUDRATE);
mt_gpio_init();
clk_buf_all_on();
pwrap_init_preloader();
i2c_hw_init();
check_charger_boost_status();
#if !CFG_FPGA_PLATFORM
pmic_ret = pmic_init();
+ #ifdef DRAM_HQA
+ dram_HQA_adjust_voltage();
+ #endif
mt_pll_post_init();
#endif
2. 添加一些宏用做选择电压等级
vendor/mediatek/proprietary/bootable/bootloader/preloader/platform/mt6735/src/drivers/inc/emi.h
+ #define DRAM_HQA
+ #define HVcore
+ //#define NV
+ //#define LVcore
+ //#define HVcore_LVmem
+ //#define LVcore_HVmem
3. 实现调整电压的函数
vendor/mediatek/proprietary/bootable/bootloader/preloader/platform/mt6735/src/drivers/emi.c
- #ifdef pmic_HQA_TCs // 此宏没开
+ #if 1
+ void dram_HQA_adjust_voltage(void)
{
#ifdef HVcore //HV (Vc=1.375V, Vm=1.3V
pmic_Vcore_adjust(1); // 1.24V
pmic_Vmem_adjust(1); // 1.39V
pmic_Vmem_Cal_adjust(0); // +0.10V (1.3V)
print("[DRAM HQA]========== HV ==========\r\n"); // LOG 显示走这里
#endif
#ifdef NV //NV (Vc=1.15V, Vm=1.22V)
pmic_Vcore_adjust(1); // 1.15V
pmic_Vmem_adjust(0); // 1.20V
pmic_Vmem_Cal_adjust(1); // +0.02V (1.22V)
print("[DRAM HQA]========== NV ==========\r\n");
#endif
#ifdef LVcore //LV (Vc=1.09375V, Vm=1.16V
pmic_Vcore_adjust(2); // 1.09375V
pmic_Vmem_adjust(0); // 1.20V
pmic_Vmem_Cal_adjust(2); // -0.04V(1.16V)
print("[DRAM HQA]========== LV ==========\r\n");
#endif
#ifdef HVcore_LVmem //HVcore_LVmem (Vc=1.375V, Vm=1.16V)
pmic_Vcore_adjust(0); // 1.375V
pmic_Vmem_adjust(0); // 1.20V
pmic_Vmem_Cal_adjust(2); // -0.04V(1.16V)
print("[DRAM HQA]========== HVcLVm ==========\r\n");
#endif
#ifdef LVcore_HVmem //LVcore_HVmem (Vc=1.09375V, Vm=1.3V)
pmic_Vcore_adjust(2); // 1.09375V
pmic_Vmem_adjust(0); // 1.20V
pmic_Vmem_Cal_adjust(0); // +0.10V (1.3V)
print("[DRAM HQA]========== LVcHVm ==========\r\n");
#endif
+ }
4、打开DDR重新校验 - 使每次回复出厂设置后DDR重新校验
适用于eng版
vendor/mediatek/proprietary/bootable/bootloader/preloader/platform/mt6735/src/drivers/inc/emi.h
- #define DDR_RESERVE_MODE
+ //#define DDR_RESERVE_MODE
5:开机重启 一般是emmc速度问题
kernel-3.18/arch/arm/boot/dts/hys6737m_35_m0.dts
msdc-sys-suspend;
mmc-ddr-1_8v;
mmc-hs200-1_8v;
- mmc-hs400-1_8v;
non-removable;
pinctl = <&mmc0_pins_default>;
register_setting = <&mmc0_register_setting_default>;
eMMC 里 DDR52 HS200 HS400 这些名词指的是不同的速度
DDR52就是最高 52M clock，数据速率就是 52 x 2 = 104
HS200 就是最高 200M clock，单通道，数据速率也是 200
HS400 也是最高 200M clock，但是是双通道，所以数据速率是 200 x 2 = 400
HS200和HS400 是 5.0 协议才有的。
Modename Data Rate IO voltage Bus Width Frequency Max Data Transfer
MMC card Single 3/1.8/1.2V 1,4,8 0-26MH 26MB/s
HightSpeedSDR Single 3/1.8/1.2V 1,4,8 0-52MH 52MB/s
HightSpeedSDR Dual 3/1.8/1.2V 4,8 0-52MH 104MB/s
HS200 Single 1.8/1.2V 4,8 0-200MH 200MB/s
HS400 Dual 1.8/1.2V 8 0-200MH 400MB/s
五：判断 MCU 型号
./vendor/mediatek/proprietary/bootable/bootloader/preloader/custom/hys6737m_35_m0/hys6737m_35_m0.mk
4:MACH_TYPE=mt6737m
./vendor/mediatek/proprietary/bootable/bootloader/preloader/custom/hys6737m_35_m0/hys6737m_35_m0.mk
24:export MTK_PLATFORM MACH_TYPE
./vendor/mediatek/proprietary/bootable/bootloader/preloader/platform/mt6735/feature.mak:529
C_OPTION += -DMACH_TYPE_$(shell echo $(MACH_TYPE) | tr '[a-z]' '[A-Z]')
//C_OPTION +=DMACH_TYPE_MT6737M
./vendor/mediatek/proprietary/bootable/bootloader/preloader/platform/mt6735/feature.mak:530:export MACH_TYPE
./vendor/mediatek/proprietary/bootable/bootloader/preloader/platform/mt6735/src/drivers/makefile
ifeq ("$(MACH_TYPE)","mt6735")
MOD_SRC += pll.c
MOD_SRC += mt_ptp.c
endif
ifeq ("$(MACH_TYPE)","mt6737m") //mt6737m 频率调节
MOD_SRC += pll2.c
MOD_SRC += mt_ptp.c
endif
./vendor/mediatek/proprietary/bootable/bootloader/preloader/tools/emigen/emigen.mk
EMIGEN_FILE_LIST := $(addprefix $(EMIGEN_OUT)/,$(ALL_EMIGEN_FILE))
CUSTOM_MEMORY_HDR := $(MTK_PATH_CUSTOM)/inc/custom_MemoryDevice.h
ifeq ($(MACH_TYPE),mt6735m)
MEMORY_DEVICE_XLS := $(D_ROOT)/tools/emigen/MT6735/MemoryDeviceList_MT6737T.xls
else ifeq ($(MACH_TYPE),mt6737m) //mt6737m 增加flash exce表
MEMORY_DEVICE_XLS := $(D_ROOT)/tools/emigen/MT6735/MemoryDeviceList_MT6737M.xls
else
MEMORY_DEVICE_XLS := $(D_ROOT)/tools/emigen/$(MTK_PLATFORM)/MemoryDeviceList_$(MTK_PLATFORM).xls
endif
ifeq ($(PLATFORM), mt2601)
MEMORY_DEVICE_XLS := $(TOOL_PATH)/emigen/$(MTK_PLATFORM)/MemoryDeviceList_$(MTK_PLATFORM).xls
EMIGEN_SCRIPT := $(TOOL_PATH)/emigen/$(MTK_PLATFORM)/emigen.pl
else
EMIGEN_SCRIPT := $(D_ROOT)/tools/emigen/$(MTK_PLATFORM)/emigen.pl
endif
vendor/mediatek/proprietary/bootable/bootloader/preloader/platform/mt6735/src/drivers/inc/pll.h
#ifndef PLL_H
#define PLL_H
#if defined(MACH_TYPE_MT6735) || defined(MACH_TYPE_MT6737T)
#include "pll1.h"
#elif defined(MACH_TYPE_MT6735M) || defined(MACH_TYPE_MT6737M)
#include "pll2.h"
#elif defined(MACH_TYPE_MT6753)
#include "pll3.h"
#endif
#endif //判断调用哪个 pll
