Hi Andy,
On 02/20/2017 08:24 PM, Andy Shevchenko wrote:
> From: Felipe Balbi <felipe.ba...@linux.intel.com>
>
> This patch adds Intel Tangier eMMC/SDHCI driver.
>
> Intel Tangier SoC contains a hybrid of PCI and non-PCI devices. SDHCI
> controller is one of the devices which are *not* on a PCI and, hence,
> cannot be enumerated by standard PCI means. This driver, allows for
> SDHCI controller on Tangier SoC to work in U-Boot.
>
> Signed-off-by: Vincent Tinelli <vincent.tine...@intel.com>
> Signed-off-by: Felipe Balbi <felipe.ba...@linux.intel.com>
> Signed-off-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
Applied on u-boot-mmc. Thanks!
Best Regards,
Jaehoon Chung
> ---
> drivers/mmc/Kconfig | 14 ++++++++
> drivers/mmc/Makefile | 1 +
> drivers/mmc/tangier_sdhci.c | 81
> +++++++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 96 insertions(+)
> create mode 100644 drivers/mmc/tangier_sdhci.c
>
> diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig
> index af8436f337..7238aade42 100644
> --- a/drivers/mmc/Kconfig
> +++ b/drivers/mmc/Kconfig
> @@ -318,6 +318,20 @@ config MMC_SDHCI_XENON
>
> If unsure, say N.
>
> +config MMC_SDHCI_TANGIER
> + bool "Tangier SDHCI controller support"
> + depends on DM_MMC && BLK
> + depends on MMC_SDHCI
> + help
> + This selects support for SDHCI controller on Tanginer
> + SoC. Note that this controller does not sit on PCI bus and,
> + hence, cannot be enumerated by standard PCI means.
> +
> + If you're using an Intel Tangier SoC (available on Intel
> + Edison board), say Y here.
> +
> + If unsure, say N.
> +
> config MMC_SDHCI_TEGRA
> bool "SDHCI platform support for the Tegra SD/MMC Controller"
> depends on TEGRA
> diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile
> index 9fccac8ead..b210d2c3b3 100644
> --- a/drivers/mmc/Makefile
> +++ b/drivers/mmc/Makefile
> @@ -61,6 +61,7 @@ obj-$(CONFIG_MMC_SDHCI_PIC32) += pic32_sdhci.o
> obj-$(CONFIG_MMC_SDHCI_ROCKCHIP) += rockchip_sdhci.o
> obj-$(CONFIG_MMC_SDHCI_S5P) += s5p_sdhci.o
> obj-$(CONFIG_MMC_SDHCI_SPEAR) += spear_sdhci.o
> +obj-$(CONFIG_MMC_SDHCI_TANGIER) += tangier_sdhci.o
> obj-$(CONFIG_MMC_SDHCI_TEGRA) += tegra_mmc.o
> obj-$(CONFIG_MMC_SDHCI_XENON) += xenon_sdhci.o
> obj-$(CONFIG_MMC_SDHCI_ZYNQ) += zynq_sdhci.o
> diff --git a/drivers/mmc/tangier_sdhci.c b/drivers/mmc/tangier_sdhci.c
> new file mode 100644
> index 0000000000..77b18e75f0
> --- /dev/null
> +++ b/drivers/mmc/tangier_sdhci.c
> @@ -0,0 +1,81 @@
> +/*
> + * Copyright (c) 2017 Intel Corporation
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +#include <common.h>
> +#include <dm.h>
> +#include <dm/device.h>
> +#include <linux/io.h>
> +#include <linux/sizes.h>
> +#include <malloc.h>
> +#include <mmc.h>
> +#include <sdhci.h>
> +
> +#define SDHCI_TANGIER_FMAX 200000000
> +#define SDHCI_TANGIER_FMIN 400000
> +
> +struct sdhci_tangier_plat {
> + struct mmc_config cfg;
> + struct mmc mmc;
> + void __iomem *ioaddr;
> +};
> +
> +static int sdhci_tangier_bind(struct udevice *dev)
> +{
> + struct sdhci_tangier_plat *plat = dev_get_platdata(dev);
> +
> + return sdhci_bind(dev, &plat->mmc, &plat->cfg);
> +}
> +
> +static int sdhci_tangier_probe(struct udevice *dev)
> +{
> + struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
> + struct sdhci_tangier_plat *plat = dev_get_platdata(dev);
> + struct sdhci_host *host = dev_get_priv(dev);
> + fdt_addr_t base;
> + int ret;
> +
> + base = dev_get_addr(dev);
> + if (base == FDT_ADDR_T_NONE)
> + return -EINVAL;
> +
> + plat->ioaddr = devm_ioremap(dev, base, SZ_1K);
> + if (!plat->ioaddr)
> + return -ENOMEM;
> +
> + host->name = dev->name;
> + host->ioaddr = plat->ioaddr;
> + host->quirks = SDHCI_QUIRK_NO_HISPD_BIT | SDHCI_QUIRK_BROKEN_VOLTAGE |
> + SDHCI_QUIRK_32BIT_DMA_ADDR | SDHCI_QUIRK_WAIT_SEND_CMD;
> +
> + /* MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195 */
> + host->voltages = MMC_VDD_165_195;
> +
> + ret = sdhci_setup_cfg(&plat->cfg, host, SDHCI_TANGIER_FMAX,
> + SDHCI_TANGIER_FMIN);
> + if (ret)
> + return ret;
> +
> + upriv->mmc = &plat->mmc;
> + host->mmc = &plat->mmc;
> + host->mmc->priv = host;
> +
> + return sdhci_probe(dev);
> +}
> +
> +static const struct udevice_id sdhci_tangier_match[] = {
> + { .compatible = "intel,sdhci-tangier" },
> + { /* sentinel */ }
> +};
> +
> +U_BOOT_DRIVER(sdhci_tangier) = {
> + .name = "sdhci-tangier",
> + .id = UCLASS_MMC,
> + .of_match = sdhci_tangier_match,
> + .bind = sdhci_tangier_bind,
> + .probe = sdhci_tangier_probe,
> + .ops = &sdhci_ops,
> + .priv_auto_alloc_size = sizeof(struct sdhci_host),
> + .platdata_auto_alloc_size = sizeof(struct sdhci_tangier_plat),
> +};
>
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