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Code Issues Releases Activity

bdk: sdmmc: rename divisor param to card clock

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This commit is contained in:
CTCaer 2023-03-31 07:53:46 +03:00
parent 298893f404
commit 9a222e0e49
3 changed files with 14 additions and 11 deletions
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9
bdk/storage/sdmmc.c
View file

@ -675,7 +675,8 @@ int sdmmc_storage_init_mmc(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 bus_wid
return 0;
DPRINTF("[MMC] after init\n");
usleep(1000 + (74000 + sdmmc->divisor - 1) / sdmmc->divisor);
// Wait 1ms + 74 cycles.
usleep(1000 + (74 * 1000 + sdmmc->card_clock - 1) / sdmmc->card_clock);
if (!_sdmmc_storage_go_idle_state(storage))
return 0;
@ -1383,7 +1384,8 @@ int sdmmc_storage_init_sd(sdmmc_storage_t *storage, sdmmc_t *sdmmc, u32 bus_widt
return 0;
DPRINTF("[SD] after init\n");
usleep(1000 + (74000 + sdmmc->divisor - 1) / sdmmc->divisor);
// Wait 1ms + 74 cycles.
usleep(1000 + (74 * 1000 + sdmmc->card_clock - 1) / sdmmc->card_clock);
if (!_sdmmc_storage_go_idle_state(storage))
return 0;
@ -1527,7 +1529,8 @@ int sdmmc_storage_init_gc(sdmmc_storage_t *storage, sdmmc_t *sdmmc)
return 0;
DPRINTF("[GC] after init\n");
usleep(1000 + (10000 + sdmmc->divisor - 1) / sdmmc->divisor);
// Wait 1ms + 10 clock cycles.
usleep(1000 + (10 * 1000 + sdmmc->card_clock - 1) / sdmmc->card_clock);
if (!sdmmc_tuning_execute(storage->sdmmc, SDHCI_TIMING_MMC_DDR100, MMC_SEND_TUNING_BLOCK_HS200))
return 0;

14
bdk/storage/sdmmc_driver.c
View file

@ -367,7 +367,7 @@ int sdmmc_setup_clock(sdmmc_t *sdmmc, u32 type)
u16 divisor;
clock_sdmmc_get_card_clock_div(&clock, &divisor, type);
clock_sdmmc_config_clock_source(&clock, sdmmc->id, clock);
sdmmc->divisor = (clock + divisor - 1) / divisor;
sdmmc->card_clock = (clock + divisor - 1) / divisor;
//if divisor != 1 && divisor << 31 -> error
@ -657,7 +657,7 @@ static int _sdmmc_tuning_execute_once(sdmmc_t *sdmmc, u32 cmd)
sdmmc->regs->norintsts = SDHCI_INT_DATA_AVAIL;
sdmmc->regs->norintstsen &= ~SDHCI_INT_DATA_AVAIL;
_sdmmc_commit_changes(sdmmc);
usleep((1000 * 8 + sdmmc->divisor - 1) / sdmmc->divisor);
usleep((8 * 1000 + sdmmc->card_clock - 1) / sdmmc->card_clock); // Wait 8 cycles.
return 1;
}
}
@ -666,7 +666,7 @@ static int _sdmmc_tuning_execute_once(sdmmc_t *sdmmc, u32 cmd)
sdmmc->regs->norintstsen &= ~SDHCI_INT_DATA_AVAIL;
_sdmmc_commit_changes(sdmmc);
usleep((1000 * 8 + sdmmc->divisor - 1) / sdmmc->divisor);
usleep((8 * 1000 + sdmmc->card_clock - 1) / sdmmc->card_clock); // Wait 8 cycles.
return 0;
}
@ -897,11 +897,11 @@ int sdmmc_stop_transmission(sdmmc_t *sdmmc, u32 *rsp)
should_disable_sd_clock = true;
sdmmc->regs->clkcon |= SDHCI_CLOCK_CARD_EN;
_sdmmc_commit_changes(sdmmc);
usleep((8000 + sdmmc->divisor - 1) / sdmmc->divisor);
usleep((8 * 1000 + sdmmc->card_clock - 1) / sdmmc->card_clock); // Wait 8 cycles.
}
int result = _sdmmc_stop_transmission_inner(sdmmc, rsp);
usleep((8000 + sdmmc->divisor - 1) / sdmmc->divisor);
usleep((8 * 1000 + sdmmc->card_clock - 1) / sdmmc->card_clock); // Wait 8 cycles.
if (should_disable_sd_clock)
sdmmc->regs->clkcon &= ~SDHCI_CLOCK_CARD_EN;
@ -1408,11 +1408,11 @@ int sdmmc_execute_cmd(sdmmc_t *sdmmc, sdmmc_cmd_t *cmd, sdmmc_req_t *req, u32 *b
should_disable_sd_clock = 1;
sdmmc->regs->clkcon |= SDHCI_CLOCK_CARD_EN;
_sdmmc_commit_changes(sdmmc);
usleep((8000 + sdmmc->divisor - 1) / sdmmc->divisor);
usleep((8 * 1000 + sdmmc->card_clock - 1) / sdmmc->card_clock); // Wait 8 cycles.
}
int result = _sdmmc_execute_cmd_inner(sdmmc, cmd, req, blkcnt_out);
usleep((8000 + sdmmc->divisor - 1) / sdmmc->divisor);
usleep((8 * 1000 + sdmmc->card_clock - 1) / sdmmc->card_clock); // Wait 8 cycles.
if (should_disable_sd_clock)
sdmmc->regs->clkcon &= ~SDHCI_CLOCK_CARD_EN;

2
bdk/storage/sdmmc_driver.h
View file

@ -225,7 +225,7 @@ typedef struct _sdmmc_t
{
t210_sdmmc_t *regs;
u32 id;
u32 divisor;
u32 card_clock;
u32 clock_stopped;
int powersave_enabled;
int manual_cal;