diff options
| -rw-r--r-- | drivers/mmc/Kconfig | 18 | ||||
| -rw-r--r-- | drivers/mmc/sdhci-adma.c | 2 | ||||
| -rw-r--r-- | drivers/mmc/sdhci.c | 9 | ||||
| -rw-r--r-- | include/sdhci.h | 4 |
4 files changed, 25 insertions, 8 deletions
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig index 06e32e75696..549634891a3 100644 --- a/drivers/mmc/Kconfig +++ b/drivers/mmc/Kconfig @@ -504,6 +504,24 @@ config SPL_MMC_SDHCI_ADMA This enables support for the ADMA (Advanced DMA) defined in the SD Host Controller Standard Specification Version 3.00 in SPL. +config MMC_SDHCI_ADMA_FORCE_32BIT + bool "Force 32 bit mode for ADMA on 64 bit platforms" + help + This forces SDHCI ADMA to be built for 32 bit descriptors, even + on a 64 bit platform where they would otherwise be assumed to + be 64 bits. This is necessary for certain hardware platforms + that are 64-bit but include only 32-bit support within the selected + SD host controller IP. + +config MMC_SDHCI_ADMA_64BIT + bool "Use SHDCI ADMA with 64 bit descriptors" + depends on !MMC_SDHCI_ADMA_FORCE_32BIT + default y if DMA_ADDR_T_64BIT + help + This selects 64 bit descriptors for SDHCI ADMA. It is enabled by + default on 64 bit systems, but can be disabled if one of these + systems includes 32-bit ADMA. + config FIXED_SDHCI_ALIGNED_BUFFER hex "SDRAM address for fixed buffer" depends on SPL && MVEBU_SPL_BOOT_DEVICE_MMC diff --git a/drivers/mmc/sdhci-adma.c b/drivers/mmc/sdhci-adma.c index 8c38448b6a3..283ba956deb 100644 --- a/drivers/mmc/sdhci-adma.c +++ b/drivers/mmc/sdhci-adma.c @@ -23,7 +23,7 @@ void sdhci_adma_write_desc(struct sdhci_host *host, void **next_desc, desc->len = len & 0xffff; desc->reserved = 0; desc->addr_lo = lower_32_bits(addr); -#ifdef CONFIG_DMA_ADDR_T_64BIT +#ifdef CONFIG_MMC_SDHCI_ADMA_64BIT desc->addr_hi = upper_32_bits(addr); #endif diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index 65090348aee..ceeac32882f 100644 --- a/drivers/mmc/sdhci.c +++ b/drivers/mmc/sdhci.c @@ -902,11 +902,10 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host, host->adma_addr = virt_to_phys(host->adma_desc_table); } -#ifdef CONFIG_DMA_ADDR_T_64BIT - host->flags |= USE_ADMA64; -#else - host->flags |= USE_ADMA; -#endif + if (IS_ENABLED(CONFIG_MMC_SDHCI_ADMA_64BIT)) + host->flags |= USE_ADMA64; + else + host->flags |= USE_ADMA; #endif if (host->quirks & SDHCI_QUIRK_REG32_RW) host->version = diff --git a/include/sdhci.h b/include/sdhci.h index 2dd13b4c714..78ef0d1c088 100644 --- a/include/sdhci.h +++ b/include/sdhci.h @@ -300,7 +300,7 @@ struct sdhci_ops { }; #define ADMA_MAX_LEN 65532 -#ifdef CONFIG_DMA_ADDR_T_64BIT +#ifdef CONFIG_MMC_SDHCI_ADMA_64BIT #define ADMA_DESC_LEN 16 #else #define ADMA_DESC_LEN 8 @@ -325,7 +325,7 @@ struct sdhci_adma_desc { u8 reserved; u16 len; u32 addr_lo; -#ifdef CONFIG_DMA_ADDR_T_64BIT +#ifdef CONFIG_MMC_SDHCI_ADMA_64BIT u32 addr_hi; #endif } __packed; |