diff options
author | Tom Rini <trini@konsulko.com> | 2019-05-04 20:02:16 -0400 |
---|---|---|
committer | Tom Rini <trini@konsulko.com> | 2019-05-04 20:02:16 -0400 |
commit | c9baea6d0e96eb4bf55061d516e91e22236ed198 (patch) | |
tree | 095af9f57048d2bb4b80c3dbc573aa7f26dbb3e3 /drivers | |
parent | 2dc426418f275a934178df41905fabe6f7cfac95 (diff) | |
parent | 37cb626da25d0d895079c85866d0c2030cd98438 (diff) |
Merge tag 'mmc-2019-5-3' of https://github.com/MrVan/u-boot
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/mmc/Kconfig | 14 | ||||
-rw-r--r-- | drivers/mmc/fsl_esdhc.c | 41 | ||||
-rw-r--r-- | drivers/mmc/sdhci.c | 188 |
3 files changed, 189 insertions, 54 deletions
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig index e96e693707..c23299ea96 100644 --- a/drivers/mmc/Kconfig +++ b/drivers/mmc/Kconfig @@ -391,6 +391,20 @@ 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 MMC_SDHCI_ADMA + bool "Support SDHCI ADMA2" + depends on MMC_SDHCI + help + This enables support for the ADMA (Advanced DMA) defined + in the SD Host Controller Standard Specification Version 3.00 + +config SPL_MMC_SDHCI_ADMA + bool "Support SDHCI ADMA2 in SPL" + depends on MMC_SDHCI + help + This enables support for the ADMA (Advanced DMA) defined + in the SD Host Controller Standard Specification Version 3.00 in SPL. + config MMC_SDHCI_ATMEL bool "Atmel SDHCI controller support" depends on ARCH_AT91 diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c index 9e34557d16..1b7de74a72 100644 --- a/drivers/mmc/fsl_esdhc.c +++ b/drivers/mmc/fsl_esdhc.c @@ -297,6 +297,13 @@ static int esdhc_setup_data(struct fsl_esdhc_priv *priv, struct mmc *mmc, printf("\nThe SD card is locked. Can not write to a locked card.\n\n"); return -ETIMEDOUT; } + } else { +#ifdef CONFIG_DM_GPIO + if (dm_gpio_is_valid(&priv->wp_gpio) && dm_gpio_get_value(&priv->wp_gpio)) { + printf("\nThe SD card is locked. Can not write to a locked card.\n\n"); + return -ETIMEDOUT; + } +#endif } esdhc_clrsetbits32(®s->wml, WML_WR_WML_MASK, @@ -614,18 +621,31 @@ static void set_sysctl(struct fsl_esdhc_priv *priv, struct mmc *mmc, uint clock) #else int pre_div = 2; #endif - int ddr_pre_div = mmc->ddr_mode ? 2 : 1; int sdhc_clk = priv->sdhc_clk; uint clk; + /* + * For ddr mode, usdhc need to enable DDR mode first, after select + * this DDR mode, usdhc will automatically divide the usdhc clock + */ + if (mmc->ddr_mode) { + writel(readl(®s->mixctrl) | MIX_CTRL_DDREN, ®s->mixctrl); + sdhc_clk >>= 1; + } + if (clock < mmc->cfg->f_min) clock = mmc->cfg->f_min; - while (sdhc_clk / (16 * pre_div * ddr_pre_div) > clock && pre_div < 256) - pre_div *= 2; + if (sdhc_clk / 16 > clock) { + for (; pre_div < 256; pre_div *= 2) + if ((sdhc_clk / pre_div) <= (clock * 16)) + break; + } else + pre_div = 1; - while (sdhc_clk / (div * pre_div * ddr_pre_div) > clock && div < 16) - div++; + for (div = 1; div <= 16; div++) + if ((sdhc_clk / (div * pre_div)) <= clock) + break; pre_div >>= 1; div -= 1; @@ -1489,14 +1509,15 @@ static int fsl_esdhc_probe(struct udevice *dev) #endif } - priv->wp_enable = 1; - + if (dev_read_prop(dev, "fsl,wp-controller", NULL)) { + priv->wp_enable = 1; + } else { + priv->wp_enable = 0; #ifdef CONFIG_DM_GPIO - ret = gpio_request_by_name(dev, "wp-gpios", 0, &priv->wp_gpio, + gpio_request_by_name(dev, "wp-gpios", 0, &priv->wp_gpio, GPIOD_IS_IN); - if (ret) - priv->wp_enable = 0; #endif + } priv->vs18_enable = 0; diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index cdeba914f9..e2bb90abbd 100644 --- a/drivers/mmc/sdhci.c +++ b/drivers/mmc/sdhci.c @@ -67,17 +67,123 @@ static void sdhci_transfer_pio(struct sdhci_host *host, struct mmc_data *data) } } -static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data, - unsigned int start_addr) +#if CONFIG_IS_ENABLED(MMC_SDHCI_ADMA) +static void sdhci_adma_desc(struct sdhci_host *host, char *buf, u16 len, + bool end) +{ + struct sdhci_adma_desc *desc; + u8 attr; + + desc = &host->adma_desc_table[host->desc_slot]; + + attr = ADMA_DESC_ATTR_VALID | ADMA_DESC_TRANSFER_DATA; + if (!end) + host->desc_slot++; + else + attr |= ADMA_DESC_ATTR_END; + + desc->attr = attr; + desc->len = len; + desc->reserved = 0; + desc->addr_lo = (dma_addr_t)buf; +#ifdef CONFIG_DMA_ADDR_T_64BIT + desc->addr_hi = (u64)buf >> 32; +#endif +} + +static void sdhci_prepare_adma_table(struct sdhci_host *host, + struct mmc_data *data) +{ + uint trans_bytes = data->blocksize * data->blocks; + uint desc_count = DIV_ROUND_UP(trans_bytes, ADMA_MAX_LEN); + int i = desc_count; + char *buf; + + host->desc_slot = 0; + + if (data->flags & MMC_DATA_READ) + buf = data->dest; + else + buf = (char *)data->src; + + while (--i) { + sdhci_adma_desc(host, buf, ADMA_MAX_LEN, false); + buf += ADMA_MAX_LEN; + trans_bytes -= ADMA_MAX_LEN; + } + + sdhci_adma_desc(host, buf, trans_bytes, true); + + flush_cache((dma_addr_t)host->adma_desc_table, + ROUND(desc_count * sizeof(struct sdhci_adma_desc), + ARCH_DMA_MINALIGN)); +} +#elif defined(CONFIG_MMC_SDHCI_SDMA) +static void sdhci_prepare_adma_table(struct sdhci_host *host, + struct mmc_data *data) +{} +#endif +#if (defined(CONFIG_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) { - unsigned int stat, rdy, mask, timeout, block = 0; - bool transfer_done = false; -#ifdef CONFIG_MMC_SDHCI_SDMA unsigned char ctrl; + + if (data->flags == MMC_DATA_READ) + host->start_addr = (dma_addr_t)data->dest; + else + host->start_addr = (dma_addr_t)data->src; + ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); ctrl &= ~SDHCI_CTRL_DMA_MASK; + if (host->flags & USE_ADMA64) + ctrl |= SDHCI_CTRL_ADMA64; + else if (host->flags & USE_ADMA) + ctrl |= SDHCI_CTRL_ADMA32; sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); + + if (host->flags & USE_SDMA) { + if ((host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) && + (host->start_addr & 0x7) != 0x0) { + *is_aligned = 0; + host->start_addr = (unsigned long)aligned_buffer; + if (data->flags != MMC_DATA_READ) + memcpy(aligned_buffer, data->src, trans_bytes); + } + +#if defined(CONFIG_FIXED_SDHCI_ALIGNED_BUFFER) + /* + * Always use this bounce-buffer when + * CONFIG_FIXED_SDHCI_ALIGNED_BUFFER is defined + */ + *is_aligned = 0; + host->start_addr = (unsigned long)aligned_buffer; + if (data->flags != MMC_DATA_READ) + memcpy(aligned_buffer, data->src, trans_bytes); +#endif + sdhci_writel(host, host->start_addr, SDHCI_DMA_ADDRESS); + + } else if (host->flags & (USE_ADMA | USE_ADMA64)) { + sdhci_prepare_adma_table(host, data); + + sdhci_writel(host, (u32)host->adma_addr, SDHCI_ADMA_ADDRESS); + if (host->flags & USE_ADMA64) + sdhci_writel(host, (u64)host->adma_addr >> 32, + SDHCI_ADMA_ADDRESS_HI); + } + + flush_cache(host->start_addr, ROUND(trans_bytes, ARCH_DMA_MINALIGN)); +} +#else +static void sdhci_prepare_dma(struct sdhci_host *host, struct mmc_data *data, + int *is_aligned, int trans_bytes) +{} #endif +static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data) +{ + dma_addr_t start_addr = host->start_addr; + unsigned int stat, rdy, mask, timeout, block = 0; + bool transfer_done = false; timeout = 1000000; rdy = SDHCI_INT_SPACE_AVAIL | SDHCI_INT_DATA_AVAIL; @@ -104,14 +210,17 @@ static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data, continue; } } -#ifdef CONFIG_MMC_SDHCI_SDMA - if (!transfer_done && (stat & SDHCI_INT_DMA_END)) { + if ((host->flags & USE_DMA) && !transfer_done && + (stat & SDHCI_INT_DMA_END)) { sdhci_writel(host, SDHCI_INT_DMA_END, SDHCI_INT_STATUS); - start_addr &= ~(SDHCI_DEFAULT_BOUNDARY_SIZE - 1); - start_addr += SDHCI_DEFAULT_BOUNDARY_SIZE; - sdhci_writel(host, start_addr, SDHCI_DMA_ADDRESS); + if (host->flags & USE_SDMA) { + start_addr &= + ~(SDHCI_DEFAULT_BOUNDARY_SIZE - 1); + start_addr += SDHCI_DEFAULT_BOUNDARY_SIZE; + sdhci_writel(host, start_addr, + SDHCI_DMA_ADDRESS); + } } -#endif if (timeout-- > 0) udelay(10); else { @@ -149,10 +258,11 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd, int ret = 0; int trans_bytes = 0, is_aligned = 1; u32 mask, flags, mode; - unsigned int time = 0, start_addr = 0; + unsigned int time = 0; int mmc_dev = mmc_get_blk_desc(mmc)->devnum; ulong start = get_timer(0); + host->start_addr = 0; /* Timeout unit - ms */ static unsigned int cmd_timeout = SDHCI_CMD_DEFAULT_TIMEOUT; @@ -218,33 +328,11 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd, if (data->flags == MMC_DATA_READ) mode |= SDHCI_TRNS_READ; -#ifdef CONFIG_MMC_SDHCI_SDMA - if (data->flags == MMC_DATA_READ) - start_addr = (unsigned long)data->dest; - else - start_addr = (unsigned long)data->src; - if ((host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) && - (start_addr & 0x7) != 0x0) { - is_aligned = 0; - start_addr = (unsigned long)aligned_buffer; - if (data->flags != MMC_DATA_READ) - memcpy(aligned_buffer, data->src, trans_bytes); + if (host->flags & USE_DMA) { + mode |= SDHCI_TRNS_DMA; + sdhci_prepare_dma(host, data, &is_aligned, trans_bytes); } -#if defined(CONFIG_FIXED_SDHCI_ALIGNED_BUFFER) - /* - * Always use this bounce-buffer when - * CONFIG_FIXED_SDHCI_ALIGNED_BUFFER is defined - */ - is_aligned = 0; - start_addr = (unsigned long)aligned_buffer; - if (data->flags != MMC_DATA_READ) - memcpy(aligned_buffer, data->src, trans_bytes); -#endif - - sdhci_writel(host, start_addr, SDHCI_DMA_ADDRESS); - mode |= SDHCI_TRNS_DMA; -#endif sdhci_writew(host, SDHCI_MAKE_BLKSZ(SDHCI_DEFAULT_BOUNDARY_ARG, data->blocksize), SDHCI_BLOCK_SIZE); @@ -255,12 +343,6 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd, } sdhci_writel(host, cmd->cmdarg, SDHCI_ARGUMENT); -#ifdef CONFIG_MMC_SDHCI_SDMA - if (data) { - trans_bytes = ALIGN(trans_bytes, CONFIG_SYS_CACHELINE_SIZE); - flush_cache(start_addr, trans_bytes); - } -#endif sdhci_writew(host, SDHCI_MAKE_CMD(cmd->cmdidx, flags), SDHCI_COMMAND); start = get_timer(0); do { @@ -286,7 +368,7 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd, ret = -1; if (!ret && data) - ret = sdhci_transfer_data(host, data, start_addr); + ret = sdhci_transfer_data(host, data); if (host->quirks & SDHCI_QUIRK_WAIT_SEND_CMD) udelay(1000); @@ -570,6 +652,24 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host, __func__); return -EINVAL; } + + host->flags |= USE_SDMA; +#endif +#if CONFIG_IS_ENABLED(MMC_SDHCI_ADMA) + if (!(caps & SDHCI_CAN_DO_ADMA2)) { + printf("%s: Your controller doesn't support SDMA!!\n", + __func__); + return -EINVAL; + } + host->adma_desc_table = (struct sdhci_adma_desc *) + memalign(ARCH_DMA_MINALIGN, ADMA_TABLE_SZ); + + host->adma_addr = (dma_addr_t)host->adma_desc_table; +#ifdef CONFIG_DMA_ADDR_T_64BIT + host->flags |= USE_ADMA64; +#else + host->flags |= USE_ADMA; +#endif #endif if (host->quirks & SDHCI_QUIRK_REG32_RW) host->version = |