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| author | Anton Vorontsov <avorontsov@ru.mvista.com> | 2009-02-19 18:20:44 +0300 |
|---|---|---|
| committer | Kim Phillips <kim.phillips@freescale.com> | 2009-02-23 15:51:59 -0600 |
| commit | b24a99f6666ac278ec9f9c1334518af828833d19 (patch) | |
| tree | a69d7be8df4133cf8cad2f2aca285ce81ce867f7 | |
| parent | e2d72ba543c7b6924b5b5d393dcd80b2b9c3a022 (diff) | |
| download | u-boot-imx-b24a99f6666ac278ec9f9c1334518af828833d19.zip u-boot-imx-b24a99f6666ac278ec9f9c1334518af828833d19.tar.gz u-boot-imx-b24a99f6666ac278ec9f9c1334518af828833d19.tar.bz2 | |
mpc83xx: PCIe: Fix CONFIG_PCI_SCAN_SHOW reporting bogus values
This patch fixes an issue in config space read accessors: we should
fill-in the value even if we fail (e.g. skipping devices), otherwise
CONFIG_PCI_SCAN_SHOW reports bogus values during boot up.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
| -rw-r--r-- | cpu/mpc83xx/pcie.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/cpu/mpc83xx/pcie.c b/cpu/mpc83xx/pcie.c index 1a3b2be..77f8906 100644 --- a/cpu/mpc83xx/pcie.c +++ b/cpu/mpc83xx/pcie.c @@ -60,6 +60,9 @@ static int mpc83xx_pcie_remap_cfg(struct pci_controller *hose, pci_dev_t dev) #define cfg_write(val, addr, type, op) \ do { op((type *)(addr), (val)); } while (0) +#define cfg_read_err(val) do { *val = -1; } while (0) +#define cfg_write_err(val) do { } while (0) + #define PCIE_OP(rw, size, type, op) \ static int pcie_##rw##_config_##size(struct pci_controller *hose, \ pci_dev_t dev, int offset, \ @@ -68,8 +71,10 @@ static int pcie_##rw##_config_##size(struct pci_controller *hose, \ int ret; \ \ ret = mpc83xx_pcie_remap_cfg(hose, dev); \ - if (ret) \ - return ret; \ + if (ret) { \ + cfg_##rw##_err(val); \ + return ret; \ + } \ cfg_##rw(val, (void *)hose->cfg_addr + offset, type, op); \ return 0; \ } |