From mboxrd@z Thu Jan 1 00:00:00 1970 From: Walter Lozano Date: Wed, 29 Jul 2020 12:31:17 -0300 Subject: [PATCH v3 2/6] mmc: fsl_esdhc_imx: add OF_PLATDATA support In-Reply-To: <20200729153121.29548-1-walter.lozano@collabora.com> References: <20200729153121.29548-1-walter.lozano@collabora.com> Message-ID: <20200729153121.29548-3-walter.lozano@collabora.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de In order to reduce the footprint of SPL by removing dtb and library overhead, add OF_PLATDATA support to fsl_esdhc_imx. This initial approach does not support card detection, which will be enabled after adding OF_PLATDATA support to GPIO. Signed-off-by: Walter Lozano Reviewed-by: Simon Glass --- Changes in v3: - Fix commit message drivers/mmc/fsl_esdhc_imx.c | 67 +++++++++++++++++++++++++++++-------- 1 file changed, 53 insertions(+), 14 deletions(-) diff --git a/drivers/mmc/fsl_esdhc_imx.c b/drivers/mmc/fsl_esdhc_imx.c index 6b727dbbd5..2713682cf7 100644 --- a/drivers/mmc/fsl_esdhc_imx.c +++ b/drivers/mmc/fsl_esdhc_imx.c @@ -33,6 +33,9 @@ #include #include #include +#include +#include +#include #if !CONFIG_IS_ENABLED(BLK) #include "mmc_private.h" @@ -102,6 +105,11 @@ struct fsl_esdhc { }; struct fsl_esdhc_plat { +#if CONFIG_IS_ENABLED(OF_PLATDATA) + /* Put this first since driver model will copy the data here */ + struct dtd_fsl_esdhc dtplat; +#endif + struct mmc_config cfg; struct mmc mmc; }; @@ -1378,25 +1386,19 @@ __weak void init_clk_usdhc(u32 index) { } -static int fsl_esdhc_probe(struct udevice *dev) +static int fsl_esdhc_ofdata_to_platdata(struct udevice *dev) { - struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); - struct fsl_esdhc_plat *plat = dev_get_platdata(dev); +#if !CONFIG_IS_ENABLED(OF_PLATDATA) struct fsl_esdhc_priv *priv = dev_get_priv(dev); - const void *fdt = gd->fdt_blob; - int node = dev_of_offset(dev); - struct esdhc_soc_data *data = - (struct esdhc_soc_data *)dev_get_driver_data(dev); #if CONFIG_IS_ENABLED(DM_REGULATOR) struct udevice *vqmmc_dev; + int ret; #endif + const void *fdt = gd->fdt_blob; + int node = dev_of_offset(dev); + fdt_addr_t addr; unsigned int val; - struct mmc *mmc; -#if !CONFIG_IS_ENABLED(BLK) - struct blk_desc *bdesc; -#endif - int ret; addr = dev_read_addr(dev); if (addr == FDT_ADDR_T_NONE) @@ -1404,8 +1406,6 @@ static int fsl_esdhc_probe(struct udevice *dev) priv->esdhc_regs = (struct fsl_esdhc *)addr; priv->dev = dev; priv->mode = -1; - if (data) - priv->flags = data->flags; val = dev_read_u32_default(dev, "bus-width", -1); if (val == 8) @@ -1469,6 +1469,40 @@ static int fsl_esdhc_probe(struct udevice *dev) priv->vs18_enable = 1; } #endif +#endif + return 0; +} + +static int fsl_esdhc_probe(struct udevice *dev) +{ + struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); + struct fsl_esdhc_plat *plat = dev_get_platdata(dev); + struct fsl_esdhc_priv *priv = dev_get_priv(dev); + struct esdhc_soc_data *data = + (struct esdhc_soc_data *)dev_get_driver_data(dev); + struct mmc *mmc; +#if !CONFIG_IS_ENABLED(BLK) + struct blk_desc *bdesc; +#endif + int ret; + +#if CONFIG_IS_ENABLED(OF_PLATDATA) + struct dtd_fsl_esdhc *dtplat = &plat->dtplat; + unsigned int val; + + priv->esdhc_regs = map_sysmem(dtplat->reg[0], dtplat->reg[1]); + val = plat->dtplat.bus_width; + if (val == 8) + priv->bus_width = 8; + else if (val == 4) + priv->bus_width = 4; + else + priv->bus_width = 1; + priv->non_removable = 1; +#endif + + if (data) + priv->flags = data->flags; /* * TODO: @@ -1520,9 +1554,11 @@ static int fsl_esdhc_probe(struct udevice *dev) return ret; } +#if !CONFIG_IS_ENABLED(OF_PLATDATA) ret = mmc_of_parse(dev, &plat->cfg); if (ret) return ret; +#endif mmc = &plat->mmc; mmc->cfg = &plat->cfg; @@ -1647,6 +1683,7 @@ U_BOOT_DRIVER(fsl_esdhc) = { .name = "fsl_esdhc", .id = UCLASS_MMC, .of_match = fsl_esdhc_ids, + .ofdata_to_platdata = fsl_esdhc_ofdata_to_platdata, .ops = &fsl_esdhc_ops, #if CONFIG_IS_ENABLED(BLK) .bind = fsl_esdhc_bind, @@ -1655,4 +1692,6 @@ U_BOOT_DRIVER(fsl_esdhc) = { .platdata_auto_alloc_size = sizeof(struct fsl_esdhc_plat), .priv_auto_alloc_size = sizeof(struct fsl_esdhc_priv), }; + +U_BOOT_DRIVER_ALIAS(fsl_esdhc, fsl_imx6q_usdhc) #endif -- 2.20.1