diff options
| -rw-r--r-- | drivers/mmc/fsl_esdhc.c | 2 | ||||
| -rw-r--r-- | drivers/mmc/sdhci-adma.c | 41 | ||||
| -rw-r--r-- | drivers/mmc/sdhci.c | 8 | ||||
| -rw-r--r-- | include/sdhci.h | 12 |
4 files changed, 44 insertions, 19 deletions
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c index d44dfa5d06f..595d88bd562 100644 --- a/drivers/mmc/fsl_esdhc.c +++ b/drivers/mmc/fsl_esdhc.c @@ -252,7 +252,7 @@ static void esdhc_setup_dma(struct fsl_esdhc_priv *priv, struct mmc_data *data) priv->adma_desc_table) { debug("Using ADMA2\n"); /* prefer ADMA2 if it is available */ - sdhci_prepare_adma_table(priv->adma_desc_table, data, + sdhci_prepare_adma_table(NULL, priv->adma_desc_table, data, priv->dma_addr); adma_addr = virt_to_phys(priv->adma_desc_table); diff --git a/drivers/mmc/sdhci-adma.c b/drivers/mmc/sdhci-adma.c index 8213223d3f9..8c38448b6a3 100644 --- a/drivers/mmc/sdhci-adma.c +++ b/drivers/mmc/sdhci-adma.c @@ -9,9 +9,10 @@ #include <malloc.h> #include <asm/cache.h> -static void sdhci_adma_desc(struct sdhci_adma_desc *desc, - dma_addr_t addr, u16 len, bool end) +void sdhci_adma_write_desc(struct sdhci_host *host, void **next_desc, + dma_addr_t addr, int len, bool end) { + struct sdhci_adma_desc *desc = *next_desc; u8 attr; attr = ADMA_DESC_ATTR_VALID | ADMA_DESC_TRANSFER_DATA; @@ -19,17 +20,30 @@ static void sdhci_adma_desc(struct sdhci_adma_desc *desc, attr |= ADMA_DESC_ATTR_END; desc->attr = attr; - desc->len = len; + desc->len = len & 0xffff; desc->reserved = 0; desc->addr_lo = lower_32_bits(addr); #ifdef CONFIG_DMA_ADDR_T_64BIT desc->addr_hi = upper_32_bits(addr); #endif + + *next_desc += ADMA_DESC_LEN; +} + +static inline void __sdhci_adma_write_desc(struct sdhci_host *host, + void **desc, dma_addr_t addr, + int len, bool end) +{ + if (host && host->ops && host->ops->adma_write_desc) + host->ops->adma_write_desc(host, desc, addr, len, end); + else + sdhci_adma_write_desc(host, desc, addr, len, end); } /** * sdhci_prepare_adma_table() - Populate the ADMA table * + * @host: Pointer to the sdhci_host * @table: Pointer to the ADMA table * @data: Pointer to MMC data * @addr: DMA address to write to or read from @@ -39,25 +53,26 @@ static void sdhci_adma_desc(struct sdhci_adma_desc *desc, * Please note, that the table size depends on CONFIG_SYS_MMC_MAX_BLK_COUNT and * we don't have to check for overflow. */ -void sdhci_prepare_adma_table(struct sdhci_adma_desc *table, - struct mmc_data *data, dma_addr_t addr) +void sdhci_prepare_adma_table(struct sdhci_host *host, + struct sdhci_adma_desc *table, + struct mmc_data *data, dma_addr_t start_addr) { + dma_addr_t addr = start_addr; uint trans_bytes = data->blocksize * data->blocks; - uint desc_count = DIV_ROUND_UP(trans_bytes, ADMA_MAX_LEN); - struct sdhci_adma_desc *desc = table; - int i = desc_count; + void *next_desc = table; + int i = DIV_ROUND_UP(trans_bytes, ADMA_MAX_LEN); while (--i) { - sdhci_adma_desc(desc, addr, ADMA_MAX_LEN, false); + __sdhci_adma_write_desc(host, &next_desc, addr, + ADMA_MAX_LEN, false); addr += ADMA_MAX_LEN; trans_bytes -= ADMA_MAX_LEN; - desc++; } - sdhci_adma_desc(desc, addr, trans_bytes, true); + __sdhci_adma_write_desc(host, &next_desc, addr, trans_bytes, true); - flush_cache((dma_addr_t)table, - ROUND(desc_count * sizeof(struct sdhci_adma_desc), + flush_cache((phys_addr_t)table, + ROUND(next_desc - (void *)table, ARCH_DMA_MINALIGN)); } diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index 0178ed8a11e..65090348aee 100644 --- a/drivers/mmc/sdhci.c +++ b/drivers/mmc/sdhci.c @@ -111,7 +111,7 @@ static void sdhci_prepare_dma(struct sdhci_host *host, struct mmc_data *data, } #if CONFIG_IS_ENABLED(MMC_SDHCI_ADMA) else if (host->flags & (USE_ADMA | USE_ADMA64)) { - sdhci_prepare_adma_table(host->adma_desc_table, data, + sdhci_prepare_adma_table(host, host->adma_desc_table, data, host->start_addr); sdhci_writel(host, lower_32_bits(host->adma_addr), @@ -897,8 +897,10 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host, __func__); return -EINVAL; } - host->adma_desc_table = sdhci_adma_init(); - host->adma_addr = (dma_addr_t)host->adma_desc_table; + if (!host->adma_desc_table) { + host->adma_desc_table = sdhci_adma_init(); + host->adma_addr = virt_to_phys(host->adma_desc_table); + } #ifdef CONFIG_DMA_ADDR_T_64BIT host->flags |= USE_ADMA64; diff --git a/include/sdhci.h b/include/sdhci.h index a1b74e3bd79..d73a725609b 100644 --- a/include/sdhci.h +++ b/include/sdhci.h @@ -291,6 +291,11 @@ struct sdhci_ops { * Return: 0 if successful, -ve on error */ int (*set_enhanced_strobe)(struct sdhci_host *host); + +#ifdef CONFIG_MMC_SDHCI_ADMA_HELPERS + void (*adma_write_desc)(struct sdhci_host *host, void **desc, + dma_addr_t addr, int len, bool end); +#endif }; #define ADMA_MAX_LEN 65532 @@ -526,8 +531,11 @@ extern const struct dm_mmc_ops sdhci_ops; #else #endif +void sdhci_adma_write_desc(struct sdhci_host *host, void **next_desc, + dma_addr_t addr, int len, bool end); struct sdhci_adma_desc *sdhci_adma_init(void); -void sdhci_prepare_adma_table(struct sdhci_adma_desc *table, - struct mmc_data *data, dma_addr_t addr); +void sdhci_prepare_adma_table(struct sdhci_host *host, + struct sdhci_adma_desc *table, + struct mmc_data *data, dma_addr_t start_addr); #endif /* __SDHCI_HW_H */ |