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楼主 # 2021-11-10 09:40:49

jkl
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注册时间: 2019-11-18
已发帖子: 206
积分: 123.5

请问一下,全志A33的BSP,sd卡驱动没有检测引脚该怎样配置???

我现在的配置如下,理论上应该没有问题,但是插入SD卡还是没法反应,请各位大佬指点一下!!!

;-------------------------------------------------------------------------------
;   mmc configuration
;
;   Config Guide
;   sdc_used:      1-enable card, 0-disable card
;   sdc_detmode:   card detect mode
;                  1-detect card by gpio polling
;                  2-detect card by gpio irq(must use IO with irq function)
;                  3-no detect, always in for boot card
;                  4-manually insert and remove by /proc/driver/sunxi-mmc.x/insert
;   sdc_buswidth:  card bus width, 1-1bit, 4-4bit, 8-8bit
;   sdc_use_wp:    1-with write protect IO, 0-no write protect IO
;   sdc_isio:      for sdio card
;   sdc_regulator: power control.if card supports UHS-I/DDR and HS200 timing for
;                  SD3.0 or eMMC4.5, regulator must be configured. the value is
;                  the ldo name of AXP221, eg: sdc_regulator = "axp22_eldo2"
;   other: GPIO Mapping configuration
;
;   Note:
;   1 if detmode=2, sdc_det's config=6
;     else if detmode=1, sdc_det's config=0
;     else sdc_det IO is not necessary
;   2 if the customer wants to support UHS-I and HS200 features, he must provide
;     an independent power supply for the card. This is only used in platforms
;     that supports SD3.0 cards and eMMC4.4+ flashes
;-------------------------------------------------------------------------------
[mmc0_para]
sdc_used          = 1
sdc_detmode       = 1   ===============》这里检测模式的1/3我都试过了
sdc_buswidth      = 4
sdc_d1            = port:PF00<2><1><2><default>
sdc_d0            = port:PF01<2><1><2><default>
sdc_clk           = port:PF02<2><1><2><default>
sdc_cmd           = port:PF03<2><1><2><default>
sdc_d3            = port:PF04<2><1><2><default>
sdc_d2            = port:PF05<2><1><2><default>
;sdc_det           = port:PL05<4><1><2><default>

;add
sdc_power_supply  = "axp22_dcdc1"
sdc_use_wp        = 0
sdc_wp            =
sdc_isio          = 0
sdc_regulator     = "none"

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