[U-Boot] [PATCH V2] mpc83xx: fix pcie configuration space read/write
Scott Wood
scottwood at freescale.com
Fri Jan 7 20:24:49 CET 2011
On Fri, 7 Jan 2011 20:42:51 +0800
Baidu Boy <liucai.lfn at gmail.com> wrote:
> Signed-off-by: Baidu Boy <liucai.lfn at gmail.com>
Sign-offs (and ideally the From: field as well) should contain your
real name.
> diff --git a/arch/powerpc/cpu/mpc83xx/pcie.c b/arch/powerpc/cpu/mpc83xx/pcie.c
> index 46a706d..2a200b8 100644
> --- a/arch/powerpc/cpu/mpc83xx/pcie.c
> +++ b/arch/powerpc/cpu/mpc83xx/pcie.c
> @@ -46,13 +46,15 @@ static struct {
> #endif
> };
>
> +static u8 pcie_index =0;
> +
> #ifdef CONFIG_83XX_GENERIC_PCIE_REGISTER_HOSES
>
> static int mpc83xx_pcie_remap_cfg(struct pci_controller *hose, pci_dev_t dev)
> {
> int bus = PCI_BUS(dev) - hose->first_busno;
> immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
> - pex83xx_t *pex = &immr->pciexp[bus];
> + pex83xx_t *pex = &immr->pciexp[pcie_index];
Maybe struct pci_controller should contain a field for the driver's
private use, where such things could be placed?
> struct pex_outbound_window *out_win = &pex->bridge.pex_outbound_win[0];
> u8 devfn = PCI_DEV(dev) << 3 | PCI_FUNC(dev);
> u32 dev_base = bus << 24 | devfn << 16;
> @@ -324,6 +326,8 @@ void mpc83xx_pcie_init(int num_buses, struct pci_region **reg)
> num_buses = ARRAY_SIZE(mpc83xx_pcie_cfg_space);
> }
>
> - for (i = 0; i < num_buses; i++)
> + for (i = 0; i < num_buses; i++){
> + pcie_index = i;
> mpc83xx_pcie_init_bus(i, reg[i]);
> + }
> }
Won't this break if config space is accessed after initializion?
-Scott
More information about the U-Boot
mailing list