[U-Boot] [PATCH V2] mpc83xx:fix pcie configuration space read/write
Baidu Boy
liucai.lfn at gmail.com
Sun Jan 16 03:47:49 CET 2011
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 at gmail.com>
---
Changes for V2:
- code refine
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,
--
1.7.3.1.msysgit.0
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