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sdmmc v2: Add eMMC overclocking

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This commit is contained in:
CTCaer
2020-04-29 22:11:23 +03:00
parent d0a16a49b6
commit 7d17e34dee
4 changed files with 21 additions and 4 deletions
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11
nyx/nyx_gui/storage/sdmmc_driver.c
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@@ -220,7 +220,7 @@ static void _sdmmc_autocal_execute(sdmmc_t *sdmmc, u32 power)
sdmmc->regs->clkcon |= SDHCI_CLOCK_CARD_EN;
}
static int _sdmmc_dll_cal_execute(sdmmc_t *sdmmc)
static int _sdmmc_dll_cal_execute(sdmmc_t *sdmmc, bool overclock)
{
int result = 1, should_disable_sd_clock = 0;
@@ -230,6 +230,9 @@ static int _sdmmc_dll_cal_execute(sdmmc_t *sdmmc)
sdmmc->regs->clkcon |= SDHCI_CLOCK_CARD_EN;
}
if (sdmmc->id == SDMMC_4 && overclock)
sdmmc->regs->vendllcalcfg = sdmmc->regs->vendllcalcfg &= 0xFFFFC07F | (0x7C << 7); // Add -4 TX_DLY_CODE_OFFSET if HS533.
sdmmc->regs->vendllcalcfg |= TEGRA_MMC_DLLCAL_CFG_EN_CALIBRATE;
_sdmmc_get_clkcon(sdmmc);
@@ -343,7 +346,11 @@ int sdmmc_setup_clock(sdmmc_t *sdmmc, u32 type)
sdmmc->regs->clkcon |= SDHCI_CLOCK_CARD_EN;
if (type == SDHCI_TIMING_MMC_HS400)
return _sdmmc_dll_cal_execute(sdmmc);
{
bool overclock_en = clock > 208000;
return _sdmmc_dll_cal_execute(sdmmc, overclock_en);
}
return 1;
}