This patch fix a problem for the pcie enumeration when the mpc83xx pcie controller is connected with switch or we use both of the two pcie controller.
Signed-off-by: Baidu Boy liucai.lfn@gmail.com --- Changes for V2: - Avoid line wrap in the patch Changes for V3 - Add space between ) and { Changes for V4 - Add and use priv_data pointer in pci_controller to save the mpc83xx pcie private data
arch/powerpc/cpu/mpc83xx/pcie.c | 20 +++++++++++++++++++- include/pci.h | 2 ++ 2 files changed, 21 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/cpu/mpc83xx/pcie.c b/arch/powerpc/cpu/mpc83xx/pcie.c index 46a706d..ee94a8b 100644 --- a/arch/powerpc/cpu/mpc83xx/pcie.c +++ b/arch/powerpc/cpu/mpc83xx/pcie.c @@ -30,6 +30,21 @@ DECLARE_GLOBAL_DATA_PTR;
#define PCIE_MAX_BUSES 2
+/*private structure for mpc83xx pcie hose*/ +static struct mpc83xx_pcie_priv { + u8 index; +} pcie_priv[PCIE_MAX_BUSES] = { + { + /*pcie controller 1*/ + .index = 0, + }, + { + /*pcie controller 2*/ + .index = 1, + }, +}; + + static struct { u32 base; u32 size; @@ -52,7 +67,8 @@ 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]; + struct mpc83xx_pcie_priv *pcie_priv = hose->priv_data; + pex83xx_t *pex = &immr->pciexp[pcie_priv->index]; 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; @@ -142,6 +158,8 @@ static void mpc83xx_pcie_register_hose(int bus, struct pci_region *reg,
hose->cfg_addr = (unsigned int *)mpc83xx_pcie_cfg_space[bus].base;
+ hose->priv_data = &pcie_priv[bus]; + pci_set_ops(hose, pcie_read_config_byte, pcie_read_config_word, diff --git a/include/pci.h b/include/pci.h index c456006..8b3bdbb 100644 --- a/include/pci.h +++ b/include/pci.h @@ -420,6 +420,8 @@ struct pci_controller { /* Used by ppc405 autoconfig*/ struct pci_region *pci_fb; int current_busno; + + void *priv_data; };
extern __inline__ void pci_set_ops(struct pci_controller *hose,