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From patchwork Fri Dec 30 15:24:32 2016
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Content-Type: text/plain; charset="utf-8"
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MIME-Version: 1.0
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Content-Transfer-Encoding: 7bit
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Subject: [1/2] mmc: sdhci-iproc: Apply caps from bcm2835-mmc driver
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From: Stefan Wahren <stefan.wahren@i2se.com>
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X-Patchwork-Id: 9492281
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Message-Id: <1483111474-29907-2-git-send-email-stefan.wahren@i2se.com>
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To: Eric Anholt <eric@anholt.net>, Gerd Hoffmann <kraxel@redhat.com>,
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Adrian Hunter <adrian.hunter@intel.com>,
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Ulf Hansson <ulf.hansson@linaro.org>
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Cc: Stefan Wahren <stefan.wahren@i2se.com>,
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Scott Branden <sbranden@broadcom.com>, Jon Mason <jonmason@broadcom.com>,
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Ray Jui <rjui@broadcom.com>, linux-mmc@vger.kernel.org,
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bcm-kernel-feedback-list@broadcom.com,
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linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org
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Date: Fri, 30 Dec 2016 15:24:32 +0000
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Since the mmc module on bcm2835 neither provide a capabilities register nor
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free documentation we must rely on the downstream implementation [1].
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So enable the following capabilities for bcm2835:
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MMC_CAP_MMC_HIGHSPEED
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MMC_CAP_SD_HIGHSPEED
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MMC_CAP_DRIVER_TYPE_A
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MMC_CAP_DRIVER_TYPE_C
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[1] - https://github.com/raspberrypi/linux/blob/rpi-4.4.y/drivers/mmc/host/bcm2835-mmc.c
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Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
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Reviewed-by: Eric Anholt <eric@anholt.net>
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Acked-by: Adrian Hunter <adrian.hunter@intel.com>
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---
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drivers/mmc/host/sdhci-iproc.c | 9 ++++++---
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1 file changed, 6 insertions(+), 3 deletions(-)
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diff --git a/drivers/mmc/host/sdhci-iproc.c b/drivers/mmc/host/sdhci-iproc.c
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index d7046d6..30b3fdf 100644
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--- a/drivers/mmc/host/sdhci-iproc.c
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+++ b/drivers/mmc/host/sdhci-iproc.c
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@@ -211,14 +211,17 @@ static void sdhci_iproc_writeb(struct sdhci_host *host, u8 val, int reg)
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static const struct sdhci_pltfm_data sdhci_bcm2835_pltfm_data = {
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.quirks = SDHCI_QUIRK_BROKEN_CARD_DETECTION |
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SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
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- SDHCI_QUIRK_MISSING_CAPS,
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+ SDHCI_QUIRK_MISSING_CAPS |
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+ SDHCI_QUIRK_NO_HISPD_BIT,
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.ops = &sdhci_iproc_32only_ops,
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};
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static const struct sdhci_iproc_data bcm2835_data = {
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.pdata = &sdhci_bcm2835_pltfm_data,
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- .caps = SDHCI_CAN_VDD_330,
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- .caps1 = 0x00000000,
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+ .caps = SDHCI_CAN_VDD_330 |
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+ SDHCI_CAN_DO_HISPD,
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+ .caps1 = SDHCI_DRIVER_TYPE_A |
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+ SDHCI_DRIVER_TYPE_C,
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.mmc_caps = 0x00000000,
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};
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From patchwork Fri Dec 30 15:24:33 2016
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Content-Type: text/plain; charset="utf-8"
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MIME-Version: 1.0
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Content-Transfer-Encoding: 7bit
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Subject: [2/2] mmc: sdhci-iproc: Increase max_blk_size for bcm2835
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From: Stefan Wahren <stefan.wahren@i2se.com>
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X-Patchwork-Id: 9492273
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Message-Id: <1483111474-29907-3-git-send-email-stefan.wahren@i2se.com>
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To: Eric Anholt <eric@anholt.net>, Gerd Hoffmann <kraxel@redhat.com>,
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Adrian Hunter <adrian.hunter@intel.com>,
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Ulf Hansson <ulf.hansson@linaro.org>
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Cc: Stefan Wahren <stefan.wahren@i2se.com>,
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Scott Branden <sbranden@broadcom.com>, Jon Mason <jonmason@broadcom.com>,
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Ray Jui <rjui@broadcom.com>, linux-mmc@vger.kernel.org,
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bcm-kernel-feedback-list@broadcom.com,
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linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org
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Date: Fri, 30 Dec 2016 15:24:33 +0000
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According to the BCM2835 datasheet the maximum block size for the
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eMMC module is restricted to the internal data FIFO which is 1024 byte.
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But this is still an improvement to the default of 512 byte.
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Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
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Reviewed-by: Eric Anholt <eric@anholt.net>
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Acked-by: Scott Branden <scott.branden@broadcom.com>
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Acked-by: Adrian Hunter <adrian.hunter@intel.com>
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---
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drivers/mmc/host/sdhci-iproc.c | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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diff --git a/drivers/mmc/host/sdhci-iproc.c b/drivers/mmc/host/sdhci-iproc.c
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index 30b3fdf..3275d49 100644
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--- a/drivers/mmc/host/sdhci-iproc.c
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+++ b/drivers/mmc/host/sdhci-iproc.c
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@@ -218,7 +218,9 @@ static void sdhci_iproc_writeb(struct sdhci_host *host, u8 val, int reg)
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static const struct sdhci_iproc_data bcm2835_data = {
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.pdata = &sdhci_bcm2835_pltfm_data,
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- .caps = SDHCI_CAN_VDD_330 |
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+ .caps = ((0x1 << SDHCI_MAX_BLOCK_SHIFT)
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+ & SDHCI_MAX_BLOCK_MASK) |
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+ SDHCI_CAN_VDD_330 |
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SDHCI_CAN_DO_HISPD,
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.caps1 = SDHCI_DRIVER_TYPE_A |
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SDHCI_DRIVER_TYPE_C,
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