[U-Boot] [PATCH 22/25] dm: Convert PCI MMC over to use DM PCI API

[Bin Meng]

Hi Simon,

On Tue, Nov 17, 2015 at 11:54 AM, Simon Glass <sjg at chromium.org> wrote:
> At present pci_mmc_init() does not correctly use the PCI function since the
> list it passes is not terminated. The array size passed to pci_mmc_init() is
> actually not used correctly. Fix this and adjust the pci_mmc_init() to scan
> all available MMC devices.
>
> Adjust this code to use the new driver model PCI API.
>
> This should move over to the new MMC uclass at some point.
>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
>
>  arch/x86/cpu/baytrail/valleyview.c |  4 ++--
>  arch/x86/cpu/quark/quark.c         |  4 ++--
>  arch/x86/cpu/queensbay/topcliff.c  |  4 ++--
>  drivers/mmc/pci_mmc.c              | 15 +++++++--------
>  include/mmc.h                      |  6 ++----
>  5 files changed, 15 insertions(+), 18 deletions(-)
>
> diff --git a/arch/x86/cpu/baytrail/valleyview.c b/arch/x86/cpu/baytrail/valleyview.c
> index a009c14..9790c6e 100644
> --- a/arch/x86/cpu/baytrail/valleyview.c
> +++ b/arch/x86/cpu/baytrail/valleyview.c
> @@ -14,12 +14,12 @@
>  static struct pci_device_id mmc_supported[] = {
>         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_VALLEYVIEW_SDIO },
>         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_VALLEYVIEW_SDCARD },
> +       {},
>  };
>
>  int cpu_mmc_init(bd_t *bis)
>  {
> -       return pci_mmc_init("ValleyView SDHCI", mmc_supported,
> -                           ARRAY_SIZE(mmc_supported));
> +       return pci_mmc_init("ValleyView SDHCI", mmc_supported);
>  }
>
>  #ifndef CONFIG_EFI_APP
> diff --git a/arch/x86/cpu/quark/quark.c b/arch/x86/cpu/quark/quark.c
> index f737e19..77ae9b8 100644
> --- a/arch/x86/cpu/quark/quark.c
> +++ b/arch/x86/cpu/quark/quark.c
> @@ -19,6 +19,7 @@
>
>  static struct pci_device_id mmc_supported[] = {
>         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_QRK_SDIO },
> +       {},
>  };
>
>  /*
> @@ -340,8 +341,7 @@ int arch_early_init_r(void)
>
>  int cpu_mmc_init(bd_t *bis)
>  {
> -       return pci_mmc_init("Quark SDHCI", mmc_supported,
> -                           ARRAY_SIZE(mmc_supported));
> +       return pci_mmc_init("Quark SDHCI", mmc_supported);
>  }
>
>  void cpu_irq_init(void)
> diff --git a/arch/x86/cpu/queensbay/topcliff.c b/arch/x86/cpu/queensbay/topcliff.c
> index 9faf1b9..b76dd7d 100644
> --- a/arch/x86/cpu/queensbay/topcliff.c
> +++ b/arch/x86/cpu/queensbay/topcliff.c
> @@ -11,10 +11,10 @@
>  static struct pci_device_id mmc_supported[] = {
>         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TCF_SDIO_0 },
>         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TCF_SDIO_1 },
> +       {},
>  };
>
>  int cpu_mmc_init(bd_t *bis)
>  {
> -       return pci_mmc_init("Topcliff SDHCI", mmc_supported,
> -                           ARRAY_SIZE(mmc_supported));
> +       return pci_mmc_init("Topcliff SDHCI", mmc_supported);
>  }
> diff --git a/drivers/mmc/pci_mmc.c b/drivers/mmc/pci_mmc.c
> index 37171bf..5fb7151 100644
> --- a/drivers/mmc/pci_mmc.c
> +++ b/drivers/mmc/pci_mmc.c
> @@ -11,26 +11,25 @@
>  #include <sdhci.h>
>  #include <asm/pci.h>
>
> -int pci_mmc_init(const char *name, struct pci_device_id *mmc_supported,
> -                int num_ids)
> +int pci_mmc_init(const char *name, struct pci_device_id *mmc_supported)
>  {
>         struct sdhci_host *mmc_host;
> -       pci_dev_t devbusfn;
>         u32 iobase;
>         int ret;
>         int i;
>
> -       for (i = 0; i < num_ids; i++) {
> -               devbusfn = pci_find_devices(mmc_supported, i);
> -               if (devbusfn == -1)
> -                       return -ENODEV;
> +       for (i = 0; ; i++) {

Use while (1)?

> +               struct udevice *dev;
>
> +               ret = pci_find_device_id(mmc_supported, i, &dev);
> +               if (ret)
> +                       return ret;
>                 mmc_host = malloc(sizeof(struct sdhci_host));
>                 if (!mmc_host)
>                         return -ENOMEM;
>
>                 mmc_host->name = (char *)name;
> -               pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_0, &iobase);
> +               dm_pci_read_config32(dev, PCI_BASE_ADDRESS_0, &iobase);
>                 mmc_host->ioaddr = (void *)iobase;
>                 mmc_host->quirks = 0;
>                 ret = add_sdhci(mmc_host, 0, 0);
> diff --git a/include/mmc.h b/include/mmc.h
> index cda9a19..a844cf5 100644
> --- a/include/mmc.h
> +++ b/include/mmc.h
> @@ -484,11 +484,9 @@ struct pci_device_id;
>   * This finds all the matching PCI IDs and sets them up as MMC devices.
>   *
>   * @name:              Name to use for devices
> - * @mmc_supported:     PCI IDs to search for
> - * @num_ids:           Number of elements in @mmc_supported
> + * @mmc_supported:     PCI IDs to search for, terminated by {0, 0}
>   */
> -int pci_mmc_init(const char *name, struct pci_device_id *mmc_supported,
> -                int num_ids);
> +int pci_mmc_init(const char *name, struct pci_device_id *mmc_supported);
>
>  /* Set block count limit because of 16 bit register limit on some hardware*/
>  #ifndef CONFIG_SYS_MMC_MAX_BLK_COUNT
> --

Regards,
Bin