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[SDMMC] Raise power limit & fix sd power cycle

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*Change sd_switch to accept other functions
*Allow for faster speeds by raising the power limit via switch cmd
*Fix the power cycle of sd cards.
This commit is contained in:
Kostas Missos 2018-06-23 06:45:29 +03:00
parent 901f2bb5bd
commit e8ee994ad0
3 changed files with 105 additions and 41 deletions
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136
ipl/sdmmc.c
View file

@ -386,7 +386,8 @@ static int _mmc_storage_enable_HS(sdmmc_storage_t *storage, int check)
return 0; return 0;
if (!sdmmc_setup_clock(storage->sdmmc, 2)) if (!sdmmc_setup_clock(storage->sdmmc, 2))
return 0; return 0;
DPRINTF("[mmc] switched to HS\n"); DPRINTF("[MMC] switched to HS\n");
storage->csd.busspeed = 52;
if (check || _sdmmc_storage_check_status(storage)) if (check || _sdmmc_storage_check_status(storage))
return 1; return 1;
return 0; return 0;
@ -400,7 +401,8 @@ static int _mmc_storage_enable_HS200(sdmmc_storage_t *storage)
return 0; return 0;
if (!sdmmc_config_tuning(storage->sdmmc, 3, MMC_SEND_TUNING_BLOCK_HS200)) if (!sdmmc_config_tuning(storage->sdmmc, 3, MMC_SEND_TUNING_BLOCK_HS200))
return 0; return 0;
DPRINTF("[mmc] switched to HS200\n"); DPRINTF("[MMC] switched to HS200\n");
storage->csd.busspeed = 200;
return _sdmmc_storage_check_status(storage); return _sdmmc_storage_check_status(storage);
} }
@ -417,7 +419,8 @@ static int _mmc_storage_enable_HS400(sdmmc_storage_t *storage)
return 0; return 0;
if (!sdmmc_setup_clock(storage->sdmmc, 4)) if (!sdmmc_setup_clock(storage->sdmmc, 4))
return 0; return 0;
DPRINTF("[mmc] switched to HS400\n"); DPRINTF("[MMC] switched to HS400\n");
storage->csd.busspeed = 400;
return _sdmmc_storage_check_status(storage); return _sdmmc_storage_check_status(storage);
} }
@ -460,42 +463,42 @@ int sdmmc_storage_init_mmc(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 id, u32
if (!sdmmc_init(sdmmc, id, SDMMC_POWER_1_8, SDMMC_BUS_WIDTH_1, 0, 0)) if (!sdmmc_init(sdmmc, id, SDMMC_POWER_1_8, SDMMC_BUS_WIDTH_1, 0, 0))
return 0; return 0;
DPRINTF("[mmc] after init\n"); DPRINTF("[MMC] after init\n");
sleep(1000 + (74000 + sdmmc->divisor - 1) / sdmmc->divisor); sleep(1000 + (74000 + sdmmc->divisor - 1) / sdmmc->divisor);
if (!_sdmmc_storage_go_idle_state(storage)) if (!_sdmmc_storage_go_idle_state(storage))
return 0; return 0;
DPRINTF("[mmc] went to idle state\n"); DPRINTF("[MMC] went to idle state\n");
if (!_mmc_storage_get_op_cond(storage, SDMMC_POWER_1_8)) if (!_mmc_storage_get_op_cond(storage, SDMMC_POWER_1_8))
return 0; return 0;
DPRINTF("[mmc] got op cond\n"); DPRINTF("[MMC] got op cond\n");
if (!_sdmmc_storage_get_cid(storage, storage->raw_cid)) if (!_sdmmc_storage_get_cid(storage, storage->raw_cid))
return 0; return 0;
DPRINTF("[mmc] got cid\n"); DPRINTF("[MMC] got cid\n");
if (!_mmc_storage_set_relative_addr(storage)) if (!_mmc_storage_set_relative_addr(storage))
return 0; return 0;
DPRINTF("[mmc] set relative addr\n"); DPRINTF("[MMC] set relative addr\n");
if (!_sdmmc_storage_get_csd(storage, storage->raw_csd)) if (!_sdmmc_storage_get_csd(storage, storage->raw_csd))
return 0; return 0;
DPRINTF("[mmc] got csd\n"); DPRINTF("[MMC] got csd\n");
_mmc_storage_parse_csd(storage); _mmc_storage_parse_csd(storage);
if (!sdmmc_setup_clock(storage->sdmmc, 1)) if (!sdmmc_setup_clock(storage->sdmmc, 1))
return 0; return 0;
DPRINTF("[mmc] after setup clock\n"); DPRINTF("[MMC] after setup clock\n");
if (!_sdmmc_storage_select_card(storage)) if (!_sdmmc_storage_select_card(storage))
return 0; return 0;
DPRINTF("[mmc] card selected\n"); DPRINTF("[MMC] card selected\n");
if (!_sdmmc_storage_set_blocklen(storage, 512)) if (!_sdmmc_storage_set_blocklen(storage, 512))
return 0; return 0;
DPRINTF("[mmc] set blocklen to 512\n"); DPRINTF("[MMC] set blocklen to 512\n");
u32 *csd = (u32 *)storage->raw_csd; u32 *csd = (u32 *)storage->raw_csd;
//Check system specification version, only version 4.0 and later support below features. //Check system specification version, only version 4.0 and later support below features.
@ -507,7 +510,7 @@ int sdmmc_storage_init_mmc(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 id, u32
if (!_mmc_storage_switch_buswidth(storage, bus_width)) if (!_mmc_storage_switch_buswidth(storage, bus_width))
return 0; return 0;
DPRINTF("[mmc] switched buswidth\n"); DPRINTF("[MMC] switched buswidth\n");
u8 *ext_csd = (u8 *)malloc(512); u8 *ext_csd = (u8 *)malloc(512);
if (!_mmc_storage_get_ext_csd(storage, ext_csd)) if (!_mmc_storage_get_ext_csd(storage, ext_csd))
@ -516,7 +519,7 @@ int sdmmc_storage_init_mmc(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 id, u32
return 0; return 0;
} }
free(ext_csd); free(ext_csd);
DPRINTF("[mmc] got ext_csd\n"); DPRINTF("[MMC] got ext_csd\n");
_mmc_storage_parse_cid(storage); //This needs to be after csd and ext_csd _mmc_storage_parse_cid(storage); //This needs to be after csd and ext_csd
//gfx_hexdump(&gfx_con, 0, ext_csd, 512); //gfx_hexdump(&gfx_con, 0, ext_csd, 512);
@ -526,14 +529,14 @@ int sdmmc_storage_init_mmc(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 id, u32
if (storage->ext_csd.bkops & 0x1 && !(storage->ext_csd.bkops_en & EXT_CSD_BKOPS_LEVEL_2) && 0) if (storage->ext_csd.bkops & 0x1 && !(storage->ext_csd.bkops_en & EXT_CSD_BKOPS_LEVEL_2) && 0)
{ {
_mmc_storage_enable_bkops(storage); _mmc_storage_enable_bkops(storage);
DPRINTF("[mmc] BKOPS enabled\n"); DPRINTF("[MMC] BKOPS enabled\n");
} }
else else
DPRINTF("[mmc] BKOPS disabled\n"); DPRINTF("[MMC] BKOPS disabled\n");
if (!_mmc_storage_enable_highspeed(storage, storage->ext_csd.card_type, type)) if (!_mmc_storage_enable_highspeed(storage, storage->ext_csd.card_type, type))
return 0; return 0;
DPRINTF("[mmc] switched to highspeed mode\n"); DPRINTF("[MMC] succesfully switched to highspeed mode\n");
sdmmc_sd_clock_ctrl(storage->sdmmc, 1); sdmmc_sd_clock_ctrl(storage->sdmmc, 1);
@ -738,10 +741,13 @@ int _sd_storage_switch_get(sdmmc_storage_t *storage, void *buf)
return _sdmmc_storage_check_result(tmp); return _sdmmc_storage_check_result(tmp);
} }
int _sd_storage_switch(sdmmc_storage_t *storage, void *buf, int flag, u32 arg) int _sd_storage_switch(sdmmc_storage_t *storage, void *buf, int mode, int group, u32 arg)
{ {
sdmmc_cmd_t cmdbuf; sdmmc_cmd_t cmdbuf;
sdmmc_init_cmd(&cmdbuf, SD_SWITCH, arg | (flag << 31) | 0xFFFFF0, SDMMC_RSP_TYPE_1, 0); u32 switchcmd = mode << 31 | 0x00FFFFFF;
switchcmd &= ~(0xF << (group * 4));
switchcmd |= arg << (group * 4);
sdmmc_init_cmd(&cmdbuf, SD_SWITCH, switchcmd, SDMMC_RSP_TYPE_1, 0);
sdmmc_req_t reqbuf; sdmmc_req_t reqbuf;
reqbuf.buf = buf; reqbuf.buf = buf;
@ -759,6 +765,37 @@ int _sd_storage_switch(sdmmc_storage_t *storage, void *buf, int flag, u32 arg)
return _sdmmc_storage_check_result(tmp); return _sdmmc_storage_check_result(tmp);
} }
void _sd_storage_set_current_limit(sdmmc_storage_t *storage, u8 *buf)
{
u32 pwr = SD_SET_CURRENT_LIMIT_800;
_sd_storage_switch(storage, buf, SD_SWITCH_SET, 3, pwr);
while (pwr > 0)
{
pwr--;
_sd_storage_switch(storage, buf, SD_SWITCH_SET, 3, pwr);
if (((buf[15] >> 4) & 0x0F) == pwr)
break;
}
switch (pwr)
{
case SD_SET_CURRENT_LIMIT_800:
DPRINTF("[SD] Power limit raised to 800mA\n");
break;
case SD_SET_CURRENT_LIMIT_600:
DPRINTF("[SD] Power limit raised to 600mA\n");
break;
case SD_SET_CURRENT_LIMIT_400:
DPRINTF("[SD] Power limit raised to 800mA\n");
break;
default:
case SD_SET_CURRENT_LIMIT_200:
DPRINTF("[SD] Power limit defaulted to 200mA\n");
break;
}
}
int _sd_storage_enable_highspeed(sdmmc_storage_t *storage, u32 hs_type, u8 *buf) int _sd_storage_enable_highspeed(sdmmc_storage_t *storage, u32 hs_type, u8 *buf)
{ {
if (!_sd_storage_switch(storage, buf, SD_SWITCH_CHECK, 0, hs_type)) if (!_sd_storage_switch(storage, buf, SD_SWITCH_CHECK, 0, hs_type))
@ -782,6 +819,9 @@ int _sd_storage_enable_highspeed(sdmmc_storage_t *storage, u32 hs_type, u8 *buf)
int _sd_storage_enable_highspeed_low_volt(sdmmc_storage_t *storage, u32 type, u8 *buf) int _sd_storage_enable_highspeed_low_volt(sdmmc_storage_t *storage, u32 type, u8 *buf)
{ {
// Try to raise the current limit to let the card perform better.
_sd_storage_set_current_limit(storage, buf);
if (sdmmc_get_bus_width(storage->sdmmc) != SDMMC_BUS_WIDTH_4) if (sdmmc_get_bus_width(storage->sdmmc) != SDMMC_BUS_WIDTH_4)
return 0; return 0;
@ -797,14 +837,27 @@ int _sd_storage_enable_highspeed_low_volt(sdmmc_storage_t *storage, u32 type, u8
{ {
type = 11; type = 11;
hs_type = UHS_SDR104_BUS_SPEED; hs_type = UHS_SDR104_BUS_SPEED;
DPRINTF("[SD] Bus speed set to SDR104\n");
storage->csd.busspeed = 104;
break; break;
} }
//Fall through. //Fall through.
case 10: case 10:
if (!(buf[13] & SD_MODE_UHS_SDR50)) if (buf[13] & SD_MODE_UHS_SDR50)
{
type = 10;
hs_type = UHS_SDR50_BUS_SPEED;
DPRINTF("[SD] Bus speed set to SDR50\n");
storage->csd.busspeed = 50;
break;
}
case 8:
if (!(buf[13] & SD_MODE_UHS_SDR12))
return 0; return 0;
type = 10; type = 8;
hs_type = UHS_SDR50_BUS_SPEED; hs_type = UHS_SDR12_BUS_SPEED;
DPRINTF("[SD] Bus speed set to SDR12\n");
storage->csd.busspeed = 12;
break; break;
default: default:
return 0; return 0;
@ -893,7 +946,7 @@ static int _sd_storage_get_ssr(sdmmc_storage_t *storage, u8 *buf)
reqbuf.is_auto_cmd12 = 0; reqbuf.is_auto_cmd12 = 0;
if (!(storage->csd.cmdclass & CCC_APP_SPEC)) { if (!(storage->csd.cmdclass & CCC_APP_SPEC)) {
DPRINTF("[sd] ssr: Card lacks mandatory SD Status function\n"); DPRINTF("[SD] ssr: Card lacks mandatory SD Status function\n");
return 0; return 0;
} }
@ -964,35 +1017,35 @@ int sdmmc_storage_init_sd(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 id, u32
if (!sdmmc_init(sdmmc, id, SDMMC_POWER_3_3, SDMMC_BUS_WIDTH_1, 5, 0)) if (!sdmmc_init(sdmmc, id, SDMMC_POWER_3_3, SDMMC_BUS_WIDTH_1, 5, 0))
return 0; return 0;
DPRINTF("[sd] after init\n"); DPRINTF("[SD] after init\n");
sleep(1000 + (74000 + sdmmc->divisor - 1) / sdmmc->divisor); sleep(1000 + (74000 + sdmmc->divisor - 1) / sdmmc->divisor);
if (!_sdmmc_storage_go_idle_state(storage)) if (!_sdmmc_storage_go_idle_state(storage))
return 0; return 0;
DPRINTF("[sd] went to idle state\n"); DPRINTF("[SD] went to idle state\n");
is_version_1 = _sd_storage_send_if_cond(storage); is_version_1 = _sd_storage_send_if_cond(storage);
if (is_version_1 == 2) if (is_version_1 == 2)
return 0; return 0;
DPRINTF("[sd] after send if cond\n"); DPRINTF("[SD] after send if cond\n");
if (!_sd_storage_get_op_cond(storage, is_version_1, bus_width == SDMMC_BUS_WIDTH_4 && type == 11)) if (!_sd_storage_get_op_cond(storage, is_version_1, bus_width == SDMMC_BUS_WIDTH_4 && type == 11))
return 0; return 0;
DPRINTF("[sd] got op cond\n"); DPRINTF("[SD] got op cond\n");
if (!_sdmmc_storage_get_cid(storage, storage->raw_cid)) if (!_sdmmc_storage_get_cid(storage, storage->raw_cid))
return 0; return 0;
DPRINTF("[sd] got cid\n"); DPRINTF("[SD] got cid\n");
_sd_storage_parse_cid(storage); _sd_storage_parse_cid(storage);
if (!_sd_storage_get_rca(storage)) if (!_sd_storage_get_rca(storage))
return 0; return 0;
DPRINTF("[sd] got rca (= %04X)\n", storage->rca); DPRINTF("[SD] got rca (= %04X)\n", storage->rca);
if (!_sdmmc_storage_get_csd(storage, storage->raw_csd)) if (!_sdmmc_storage_get_csd(storage, storage->raw_csd))
return 0; return 0;
DPRINTF("[sd] got csd\n"); DPRINTF("[SD] got csd\n");
//Parse CSD. //Parse CSD.
_sd_storage_parse_csd(storage); _sd_storage_parse_csd(storage);
@ -1005,7 +1058,7 @@ int sdmmc_storage_init_sd(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 id, u32
storage->sec_cnt = storage->csd.c_size << 10; storage->sec_cnt = storage->csd.c_size << 10;
break; break;
default: default:
DPRINTF("[sd] Unknown CSD structure %d\n", storage->csd.structure); DPRINTF("[SD] Unknown CSD structure %d\n", storage->csd.structure);
break; break;
} }
@ -1013,27 +1066,27 @@ int sdmmc_storage_init_sd(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 id, u32
{ {
if (!sdmmc_setup_clock(storage->sdmmc, 6)) if (!sdmmc_setup_clock(storage->sdmmc, 6))
return 0; return 0;
DPRINTF("[sd] after setup clock\n"); DPRINTF("[SD] after setup clock\n");
} }
if (!_sdmmc_storage_select_card(storage)) if (!_sdmmc_storage_select_card(storage))
return 0; return 0;
DPRINTF("[sd] card selected\n"); DPRINTF("[SD] card selected\n");
if (!_sdmmc_storage_set_blocklen(storage, 512)) if (!_sdmmc_storage_set_blocklen(storage, 512))
return 0; return 0;
DPRINTF("[sd] set blocklen to 512\n"); DPRINTF("[SD] set blocklen to 512\n");
u32 tmp = 0; u32 tmp = 0;
if (!_sd_storage_execute_app_cmd_type1(storage, &tmp, SD_APP_SET_CLR_CARD_DETECT, 0, 0, R1_STATE_TRAN)) if (!_sd_storage_execute_app_cmd_type1(storage, &tmp, SD_APP_SET_CLR_CARD_DETECT, 0, 0, R1_STATE_TRAN))
return 0; return 0;
DPRINTF("[sd] cleared card detect\n"); DPRINTF("[SD] cleared card detect\n");
u8 *buf = (u8 *)malloc(512); u8 *buf = (u8 *)malloc(512);
if (!_sd_storage_get_scr(storage, buf)) if (!_sd_storage_get_scr(storage, buf))
return 0; return 0;
//gfx_hexdump(&gfx_con, 0, storage->raw_scr, 8); //gfx_hexdump(&gfx_con, 0, storage->raw_scr, 8);
DPRINTF("[sd] got scr\n"); DPRINTF("[SD] got scr\n");
// Check if card supports a wider bus and if it's not SD Version 1.X // Check if card supports a wider bus and if it's not SD Version 1.X
if (bus_width == SDMMC_BUS_WIDTH_4 && (storage->scr.bus_widths & 4) && (storage->scr.sda_vsn & 0xF)) if (bus_width == SDMMC_BUS_WIDTH_4 && (storage->scr.bus_widths & 4) && (storage->scr.sda_vsn & 0xF))
@ -1044,10 +1097,10 @@ int sdmmc_storage_init_sd(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 id, u32
return 0; return 0;
} }
sdmmc_set_bus_width(storage->sdmmc, SDMMC_BUS_WIDTH_4); sdmmc_set_bus_width(storage->sdmmc, SDMMC_BUS_WIDTH_4);
DPRINTF("[sd] switched to wide bus width\n"); DPRINTF("[SD] switched to wide bus width\n");
} }
else else
DPRINTF("[sd] SD does not support wide bus width\n"); DPRINTF("[SD] SD does not support wide bus width\n");
if (storage->is_low_voltage) if (storage->is_low_voltage)
{ {
@ -1056,7 +1109,7 @@ int sdmmc_storage_init_sd(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 id, u32
free(buf); free(buf);
return 0; return 0;
} }
DPRINTF("[sd] enabled highspeed (low voltage)\n"); DPRINTF("[SD] enabled highspeed (low voltage)\n");
} }
else if (type != 6 && (storage->scr.sda_vsn & 0xF) != 0) else if (type != 6 && (storage->scr.sda_vsn & 0xF) != 0)
{ {
@ -1065,14 +1118,15 @@ int sdmmc_storage_init_sd(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 id, u32
free(buf); free(buf);
return 0; return 0;
} }
DPRINTF("[sd] enabled highspeed (high voltage)\n"); DPRINTF("[SD] enabled highspeed (high voltage)\n");
storage->csd.busspeed = 25;
} }
sdmmc_sd_clock_ctrl(sdmmc, 1); sdmmc_sd_clock_ctrl(sdmmc, 1);
// Parse additional card info from sd status // Parse additional card info from sd status
if (_sd_storage_get_ssr(storage, buf)) if (_sd_storage_get_ssr(storage, buf))
DPRINTF("[sd] got sd status\n"); DPRINTF("[SD] got sd status\n");
free(buf); free(buf);
return 1; return 1;

1
ipl/sdmmc.h
View file

@ -48,6 +48,7 @@ typedef struct _mmc_csd
u32 write_blkbits; u32 write_blkbits;
u32 capacity; u32 capacity;
u8 write_protect; u8 write_protect;
u16 busspeed;
} mmc_csd_t; } mmc_csd_t;
typedef struct _mmc_ext_csd typedef struct _mmc_ext_csd

9
ipl/sdmmc_driver.c
View file

@ -1019,7 +1019,16 @@ void sdmmc_end(sdmmc_t *sdmmc)
if (!sdmmc->clock_stopped) if (!sdmmc->clock_stopped)
{ {
_sdmmc_sd_clock_disable(sdmmc); _sdmmc_sd_clock_disable(sdmmc);
// Disable SDMMC power.
_sdmmc_set_voltage(sdmmc, SDMMC_POWER_OFF); _sdmmc_set_voltage(sdmmc, SDMMC_POWER_OFF);
// Disable SD card power.
if (sdmmc->id == SDMMC_1)
{
gpio_output_enable(GPIO_PORT_E, GPIO_PIN_4, GPIO_OUTPUT_DISABLE);
sleep(1000); // To power cycle min 1ms without power is needed.
}
_sdmmc_get_clkcon(sdmmc); _sdmmc_get_clkcon(sdmmc);
clock_sdmmc_disable(sdmmc->id); clock_sdmmc_disable(sdmmc->id);
sdmmc->clock_stopped = 1; sdmmc->clock_stopped = 1;