[U-Boot] [PATCH 12/33] x86: pci: Add handlers before and after a PCI hose scan

[Bin Meng]

On Wed, Nov 12, 2014 at 8:18 AM, Simon Glass <sjg at chromium.org> wrote:
> Some boards will want to do some setup before and after a PCI hose
> is scanned.
>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
>
>  arch/x86/cpu/pci.c         | 14 +++++++++++++-
>  arch/x86/include/asm/pci.h |  3 +++
>  2 files changed, 16 insertions(+), 1 deletion(-)
>
> diff --git a/arch/x86/cpu/pci.c b/arch/x86/cpu/pci.c
> index 36057c6..43a4cb9 100644
> --- a/arch/x86/cpu/pci.c
> +++ b/arch/x86/cpu/pci.c
> @@ -32,6 +32,16 @@ int pci_early_init_hose(struct pci_controller **hosep)
>         return 0;
>  }
>
> +__weak int board_pci_pre_scan(struct pci_controller *hose)
> +{
> +       return 0;
> +}
> +
> +__weak int board_pci_post_scan(struct pci_controller *hose)
> +{
> +       return 0;
> +}
> +
>  void pci_init_board(void)
>  {
>         struct pci_controller *hose = &x86_hose;
> @@ -42,7 +52,9 @@ void pci_init_board(void)
>         board_pci_setup_hose(hose);
>         pci_register_hose(hose);
>
> -       pci_hose_scan(hose);
> +       board_pci_pre_scan(hose);
> +       hose->last_busno = pci_hose_scan(hose);
> +       board_pci_post_scan(hose);
>  }
>
>  static struct pci_controller *get_hose(void)
> diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
> index 98817aa..ac1a808 100644
> --- a/arch/x86/include/asm/pci.h
> +++ b/arch/x86/include/asm/pci.h
> @@ -34,6 +34,9 @@ void board_pci_setup_hose(struct pci_controller *hose);
>   */
>  int pci_early_init_hose(struct pci_controller **hosep);
>
> +int board_pci_pre_scan(struct pci_controller *hose);
> +int board_pci_post_scan(struct pci_controller *hose);
> +
>  /*
>   * Simple PCI access routines - these work from either the early PCI hose
>   * or the 'real' one, created after U-Boot has memory available
> --

Reviewed-by: Bin Meng <bmeng.cn at gmail.com>