[U-Boot] [PATCH] mmc: uniphier-sd: Update the file to match V3 patchset
Jaehoon Chung
jh80.chung at samsung.com
Wed Sep 27 05:43:49 UTC 2017
On 09/27/2017 03:05 AM, Marek Vasut wrote:
> Old version of the uniphier-sd 64bit IO support patchset V1 was
> applied by the maintainer, update the uniphier-sd.c with the
> changes from the V3 of the patchset.
>
> Signed-off-by: Marek Vasut <marek.vasut+renesas at gmail.com>
> Cc: Masahiro Yamada <yamada.masahiro at socionext.com>
> Cc: Jaehoon Chung <jh80.chung at samsung.com>
Sorry for it, I just picked from patchwork in my box.
Thanks for sending this patch. Next time, i will do more carefully.
Best Regards,
Jaehoon Chung
> ---
> drivers/mmc/uniphier-sd.c | 83 ++++++++++++++++++++++++-----------------------
> 1 file changed, 42 insertions(+), 41 deletions(-)
>
> diff --git a/drivers/mmc/uniphier-sd.c b/drivers/mmc/uniphier-sd.c
> index 0786ad0d5f..3c52161067 100644
> --- a/drivers/mmc/uniphier-sd.c
> +++ b/drivers/mmc/uniphier-sd.c
> @@ -135,7 +135,7 @@ struct uniphier_sd_priv {
> #define UNIPHIER_SD_CAP_64BIT BIT(3) /* Controller is 64bit */
> };
>
> -static u64 uniphier_sd_readq(struct uniphier_sd_priv *priv, const u32 reg)
> +static u64 uniphier_sd_readq(struct uniphier_sd_priv *priv, unsigned int reg)
> {
> if (priv->caps & UNIPHIER_SD_CAP_64BIT)
> return readq(priv->regbase + (reg << 1));
> @@ -144,7 +144,7 @@ static u64 uniphier_sd_readq(struct uniphier_sd_priv *priv, const u32 reg)
> }
>
> static void uniphier_sd_writeq(struct uniphier_sd_priv *priv,
> - const u64 val, const u32 reg)
> + u64 val, unsigned int reg)
> {
> if (priv->caps & UNIPHIER_SD_CAP_64BIT)
> writeq(val, priv->regbase + (reg << 1));
> @@ -152,7 +152,7 @@ static void uniphier_sd_writeq(struct uniphier_sd_priv *priv,
> writeq(val, priv->regbase + reg);
> }
>
> -static u32 uniphier_sd_readl(struct uniphier_sd_priv *priv, const u32 reg)
> +static u32 uniphier_sd_readl(struct uniphier_sd_priv *priv, unsigned int reg)
> {
> if (priv->caps & UNIPHIER_SD_CAP_64BIT)
> return readl(priv->regbase + (reg << 1));
> @@ -161,7 +161,7 @@ static u32 uniphier_sd_readl(struct uniphier_sd_priv *priv, const u32 reg)
> }
>
> static void uniphier_sd_writel(struct uniphier_sd_priv *priv,
> - const u32 val, const u32 reg)
> + u32 val, unsigned int reg)
> {
> if (priv->caps & UNIPHIER_SD_CAP_64BIT)
> writel(val, priv->regbase + (reg << 1));
> @@ -246,7 +246,7 @@ static int uniphier_sd_wait_for_irq(struct udevice *dev, unsigned int reg,
> return 0;
> }
>
> -static int uniphier_sd_pio_read_one_block(struct udevice *dev, u32 **pbuf,
> +static int uniphier_sd_pio_read_one_block(struct udevice *dev, char *pbuf,
> uint blocksize)
> {
> struct uniphier_sd_priv *priv = dev_get_priv(dev);
> @@ -264,36 +264,33 @@ static int uniphier_sd_pio_read_one_block(struct udevice *dev, u32 **pbuf,
> */
> uniphier_sd_writel(priv, 0, UNIPHIER_SD_INFO2);
>
> - if (likely(IS_ALIGNED((unsigned long)*pbuf, 4))) {
> - if (priv->caps & UNIPHIER_SD_CAP_64BIT) {
> + if (priv->caps & UNIPHIER_SD_CAP_64BIT) {
> + u64 *buf = (u64 *)pbuf;
> + if (likely(IS_ALIGNED((uintptr_t)buf, 8))) {
> for (i = 0; i < blocksize / 8; i++) {
> - u64 data;
> - data = uniphier_sd_readq(priv,
> - UNIPHIER_SD_BUF);
> - *(*pbuf)++ = data;
> - *(*pbuf)++ = data >> 32;
> + *buf++ = uniphier_sd_readq(priv,
> + UNIPHIER_SD_BUF);
> }
> } else {
> - for (i = 0; i < blocksize / 4; i++) {
> - u32 data;
> - data = uniphier_sd_readl(priv, UNIPHIER_SD_BUF);
> - *(*pbuf)++ = data;
> - }
> - }
> - } else {
> - if (priv->caps & UNIPHIER_SD_CAP_64BIT) {
> for (i = 0; i < blocksize / 8; i++) {
> u64 data;
> data = uniphier_sd_readq(priv,
> UNIPHIER_SD_BUF);
> - put_unaligned(data, (*pbuf)++);
> - put_unaligned(data >> 32, (*pbuf)++);
> + put_unaligned(data, buf++);
> + }
> + }
> + } else {
> + u32 *buf = (u32 *)pbuf;
> + if (likely(IS_ALIGNED((uintptr_t)buf, 4))) {
> + for (i = 0; i < blocksize / 4; i++) {
> + *buf++ = uniphier_sd_readl(priv,
> + UNIPHIER_SD_BUF);
> }
> } else {
> for (i = 0; i < blocksize / 4; i++) {
> u32 data;
> data = uniphier_sd_readl(priv, UNIPHIER_SD_BUF);
> - put_unaligned(data, (*pbuf)++);
> + put_unaligned(data, buf++);
> }
> }
> }
> @@ -302,7 +299,7 @@ static int uniphier_sd_pio_read_one_block(struct udevice *dev, u32 **pbuf,
> }
>
> static int uniphier_sd_pio_write_one_block(struct udevice *dev,
> - const u32 **pbuf, uint blocksize)
> + const char *pbuf, uint blocksize)
> {
> struct uniphier_sd_priv *priv = dev_get_priv(dev);
> int i, ret;
> @@ -315,31 +312,30 @@ static int uniphier_sd_pio_write_one_block(struct udevice *dev,
>
> uniphier_sd_writel(priv, 0, UNIPHIER_SD_INFO2);
>
> - if (likely(IS_ALIGNED((unsigned long)*pbuf, 4))) {
> - if (priv->caps & UNIPHIER_SD_CAP_64BIT) {
> + if (priv->caps & UNIPHIER_SD_CAP_64BIT) {
> + const u64 *buf = (const u64 *)pbuf;
> + if (likely(IS_ALIGNED((uintptr_t)buf, 8))) {
> for (i = 0; i < blocksize / 8; i++) {
> - u64 data = *(*pbuf)++;
> - data |= (u64)*(*pbuf)++ << 32;
> - uniphier_sd_writeq(priv, data,
> + uniphier_sd_writeq(priv, *buf++,
> UNIPHIER_SD_BUF);
> }
> } else {
> - for (i = 0; i < blocksize / 4; i++) {
> - uniphier_sd_writel(priv, *(*pbuf)++,
> + for (i = 0; i < blocksize / 8; i++) {
> + u64 data = get_unaligned(buf++);
> + uniphier_sd_writeq(priv, data,
> UNIPHIER_SD_BUF);
> }
> }
> } else {
> - if (priv->caps & UNIPHIER_SD_CAP_64BIT) {
> - for (i = 0; i < blocksize / 8; i++) {
> - u64 data = get_unaligned((*pbuf)++);
> - data |= (u64)get_unaligned((*pbuf)++) << 32;
> - uniphier_sd_writeq(priv, data,
> + const u32 *buf = (const u32 *)pbuf;
> + if (likely(IS_ALIGNED((uintptr_t)buf, 4))) {
> + for (i = 0; i < blocksize / 4; i++) {
> + uniphier_sd_writel(priv, *buf++,
> UNIPHIER_SD_BUF);
> }
> } else {
> for (i = 0; i < blocksize / 4; i++) {
> - u32 data = get_unaligned((*pbuf)++);
> + u32 data = get_unaligned(buf++);
> uniphier_sd_writel(priv, data,
> UNIPHIER_SD_BUF);
> }
> @@ -351,19 +347,24 @@ static int uniphier_sd_pio_write_one_block(struct udevice *dev,
>
> static int uniphier_sd_pio_xfer(struct udevice *dev, struct mmc_data *data)
> {
> - u32 *dest = (u32 *)data->dest;
> - const u32 *src = (const u32 *)data->src;
> + const char *src = data->src;
> + char *dest = data->dest;
> int i, ret;
>
> for (i = 0; i < data->blocks; i++) {
> if (data->flags & MMC_DATA_READ)
> - ret = uniphier_sd_pio_read_one_block(dev, &dest,
> + ret = uniphier_sd_pio_read_one_block(dev, dest,
> data->blocksize);
> else
> - ret = uniphier_sd_pio_write_one_block(dev, &src,
> + ret = uniphier_sd_pio_write_one_block(dev, src,
> data->blocksize);
> if (ret)
> return ret;
> +
> + if (data->flags & MMC_DATA_READ)
> + dest += data->blocksize;
> + else
> + src += data->blocksize;
> }
>
> return 0;
>
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