diff options
| author | Peter Geis <[email protected]> | 2023-04-18 16:46:44 +0000 |
|---|---|---|
| committer | Kever Yang <[email protected]> | 2023-04-21 15:55:29 +0800 |
| commit | 3cd664dc92ca832506f1a4e7769cb5ee6a88137d (patch) | |
| tree | a1bcd1940af0d64880393aac323b503277288a79 | |
| parent | bdbfd589745f1a7042144a222fa1e741066cc839 (diff) | |
mmc: sdhci: Allow disabling of SDMA in SPL
Rockchip emmc devices have a similar issue to Rockchip dwmmc devices,
where performing DMA to SRAM later causes issues with suspend/resume.
Allow us to toggle SDMA in SPL for sdhci similar to ADMA support, so we
can ensure DMA is not used when loading the SRAM code.
Signed-off-by: Peter Geis <[email protected]>
Reviewed-by: Jaehoon Chung <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
[[email protected]: add Kconfig default value and fix ADMA typo]
Signed-off-by: Jonas Karlman <[email protected]>
| -rw-r--r-- | drivers/mmc/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/mmc/sdhci.c | 8 |
2 files changed, 12 insertions, 4 deletions
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig index 59fb0fb50fb..de01b9687ba 100644 --- a/drivers/mmc/Kconfig +++ b/drivers/mmc/Kconfig @@ -476,6 +476,14 @@ config MMC_SDHCI_SDMA This enables support for the SDMA (Single Operation DMA) defined in the SD Host Controller Standard Specification Version 1.00 . +config SPL_MMC_SDHCI_SDMA + bool "Support SDHCI SDMA in SPL" + depends on SPL_MMC && MMC_SDHCI + default y if MMC_SDHCI_SDMA + help + This enables support for the SDMA (Single Operation DMA) defined + in the SD Host Controller Standard Specification Version 1.00 in SPL. + config MMC_SDHCI_ADMA bool "Support SDHCI ADMA2" depends on MMC_SDHCI diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index 86f81f5dfaf..9cbe126106c 100644 --- a/drivers/mmc/sdhci.c +++ b/drivers/mmc/sdhci.c @@ -70,7 +70,7 @@ static void sdhci_transfer_pio(struct sdhci_host *host, struct mmc_data *data) } } -#if (defined(CONFIG_MMC_SDHCI_SDMA) || CONFIG_IS_ENABLED(MMC_SDHCI_ADMA)) +#if (CONFIG_IS_ENABLED(MMC_SDHCI_SDMA) || CONFIG_IS_ENABLED(MMC_SDHCI_ADMA)) static void sdhci_prepare_dma(struct sdhci_host *host, struct mmc_data *data, int *is_aligned, int trans_bytes) { @@ -177,7 +177,7 @@ static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data) } } while (!(stat & SDHCI_INT_DATA_END)); -#if (defined(CONFIG_MMC_SDHCI_SDMA) || CONFIG_IS_ENABLED(MMC_SDHCI_ADMA)) +#if (CONFIG_IS_ENABLED(MMC_SDHCI_SDMA) || CONFIG_IS_ENABLED(MMC_SDHCI_ADMA)) dma_unmap_single(host->start_addr, data->blocks * data->blocksize, mmc_get_dma_dir(data)); #endif @@ -877,7 +877,7 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host, #endif debug("%s, caps: 0x%x\n", __func__, caps); -#ifdef CONFIG_MMC_SDHCI_SDMA +#if CONFIG_IS_ENABLED(MMC_SDHCI_SDMA) if ((caps & SDHCI_CAN_DO_SDMA)) { host->flags |= USE_SDMA; } else { @@ -887,7 +887,7 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host, #endif #if CONFIG_IS_ENABLED(MMC_SDHCI_ADMA) if (!(caps & SDHCI_CAN_DO_ADMA2)) { - printf("%s: Your controller doesn't support SDMA!!\n", + printf("%s: Your controller doesn't support ADMA!!\n", __func__); return -EINVAL; } |