[U-Boot] [PATCH 4/5] mmc: rockchip: add SDHCI driver support for rockchip soc

[Kever Yang <kever.yang@rock-chips.com>]

Hi Simon,

On 07/15/2016 11:20 AM, Simon Glass wrote:
> Hi Kever,
>
> On 13 July 2016 at 23:08, Kever Yang <kever.yang@rock-chips.com> wrote:
>> Rockchip rk3399 using arasan sdhci-5.1 controller.
>> This patch add the controller support to enable mmc device and tested on
>> rk3399 evb board.
>>
>> Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
>> ---
>>
>>   drivers/mmc/Kconfig          |  6 +++++
>>   drivers/mmc/Makefile         |  1 +
>>   drivers/mmc/rockchip_sdhci.c | 58 ++++++++++++++++++++++++++++++++++++++++++++
>>   3 files changed, 65 insertions(+)
>>   create mode 100644 drivers/mmc/rockchip_sdhci.c
>>
> Can you please update this to define CONFIG_BLK and CONFIG_DM_MMC_OPS?
> This will give it full driver-model support.
>
> See msm_sdhci.c for an example.
Sorry, missing this reply when I send out patch V2/V3, will update with
full driver-model support.

Thanks,
- Kever
>
>> diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig
>> index c80efc3..75c2d92 100644
>> --- a/drivers/mmc/Kconfig
>> +++ b/drivers/mmc/Kconfig
>> @@ -52,6 +52,12 @@ config ZYNQ_SDHCI
>>          help
>>            Support for Arasan SDHCI host controller on Zynq/ZynqMP ARM SoCs platform
>>
>> +config ROCKCHIP_SDHCI
>> +       bool "Arasan SDHCI controller for Rockchip support"
>> +       depends on DM_MMC && OF_CONTROL
>> +       help
>> +         Support for Arasan SDHCI host controller on Rockchip ARM SoCs platform
>> +
>>   config MMC_UNIPHIER
>>          bool "UniPhier SD/MMC Host Controller support"
>>          depends on ARCH_UNIPHIER
>> diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile
>> index 3da4817..7cb2ab0 100644
>> --- a/drivers/mmc/Makefile
>> +++ b/drivers/mmc/Makefile
>> @@ -53,6 +53,7 @@ obj-$(CONFIG_SPEAR_SDHCI) += spear_sdhci.o
>>   obj-$(CONFIG_TEGRA_MMC) += tegra_mmc.o
>>   obj-$(CONFIG_MMC_UNIPHIER) += uniphier-sd.o
>>   obj-$(CONFIG_ZYNQ_SDHCI) += zynq_sdhci.o
>> +obj-$(CONFIG_ROCKCHIP_SDHCI) += rockchip_sdhci.o
>>
>>   ifdef CONFIG_SPL_BUILD
>>   obj-$(CONFIG_SPL_MMC_BOOT) += fsl_esdhc_spl.o
>> diff --git a/drivers/mmc/rockchip_sdhci.c b/drivers/mmc/rockchip_sdhci.c
>> new file mode 100644
>> index 0000000..bee269d
>> --- /dev/null
>> +++ b/drivers/mmc/rockchip_sdhci.c
>> @@ -0,0 +1,58 @@
>> +/*
>> + * (C) Copyright 2016 Fuzhou Rockchip Electronics Co., Ltd
>> + *
>> + * Rockchip SD Host Controller Interface
>> + *
>> + * SPDX-License-Identifier:    GPL-2.0+
>> + */
>> +
>> +#include <common.h>
>> +#include <dm.h>
>> +#include <fdtdec.h>
>> +#include <libfdt.h>
>> +#include <malloc.h>
>> +#include <sdhci.h>
>> +
>> +/* 400KHz is max freq for card ID etc. Use that as min */
>> +#define EMMC_MIN_FREQ  400000
>> +
>> +static int arasan_sdhci_probe(struct udevice *dev)
>> +{
>> +       struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
>> +       struct sdhci_host *host = dev_get_priv(dev);
>> +
>> +
>> +       host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
>> +       host->quirks = SDHCI_QUIRK_WAIT_SEND_CMD;
>> +
>> +       add_sdhci(host, CONFIG_ROCKCHIP_SDHCI_MAX_FREQ, EMMC_MIN_FREQ);
>> +
>> +       upriv->mmc = host->mmc;
>> +       host->mmc->dev = dev;
>> +
>> +       return 0;
>> +}
>> +
>> +static int arasan_sdhci_ofdata_to_platdata(struct udevice *dev)
>> +{
>> +       struct sdhci_host *host = dev_get_priv(dev);
>> +
>> +       host->name = dev->name;
>> +       host->ioaddr = (void *)dev_get_addr(dev);
> You can use dev_get_addr_ptr() here.
>
>> +
>> +       return 0;
>> +}
>> +
>> +static const struct udevice_id arasan_sdhci_ids[] = {
>> +       { .compatible = "arasan,sdhci-5.1" },
>> +       { }
>> +};
>> +
>> +U_BOOT_DRIVER(arasan_sdhci_drv) = {
>> +       .name           = "arasan_sdhci",
>> +       .id             = UCLASS_MMC,
>> +       .of_match       = arasan_sdhci_ids,
>> +       .ofdata_to_platdata = arasan_sdhci_ofdata_to_platdata,
>> +       .probe          = arasan_sdhci_probe,
>> +       .priv_auto_alloc_size = sizeof(struct sdhci_host),
>> +};
>> --
>> 1.9.1
>>
>>
> Regards,
> Simon
>
>
>