diff options
| author | Simon Glass <sjg@chromium.org> | 2019-12-29 21:19:13 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2020-01-07 16:02:38 -0700 |
| commit | 3d9acea3d9ae45037ff2fd1e4c2f877f0466ce6a (patch) | |
| tree | 8abecc2f1eecb4f243d98f9455ddfdb643659528 /arch | |
| parent | 1058eec0f4a34a28095276729d390885d468a44f (diff) | |
x86: apl: Avoid accessing the PCI bus before it is probed
The PCI bus is not actually probed by the time the ofdata_to_platdata()
method is called since that happens in the uclass's post_probe() method.
Update the PMC and P2SB drivers to access the bus in its probe() method.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/cpu/apollolake/p2sb.c | 20 | ||||
| -rw-r--r-- | arch/x86/cpu/apollolake/pmc.c | 20 |
2 files changed, 29 insertions, 11 deletions
diff --git a/arch/x86/cpu/apollolake/p2sb.c b/arch/x86/cpu/apollolake/p2sb.c index eb27861b7a..b72f50a627 100644 --- a/arch/x86/cpu/apollolake/p2sb.c +++ b/arch/x86/cpu/apollolake/p2sb.c @@ -106,11 +106,6 @@ int apl_p2sb_ofdata_to_platdata(struct udevice *dev) if (plat->bdf < 0) return log_msg_ret("Cannot get p2sb PCI address", plat->bdf); - } else { - plat->mmio_base = dev_read_addr_pci(dev); - /* Don't set BDF since it should not be used */ - if (!plat->mmio_base || plat->mmio_base == FDT_ADDR_T_NONE) - return -EINVAL; } #else plat->mmio_base = plat->dtplat.early_regs[0]; @@ -124,10 +119,19 @@ int apl_p2sb_ofdata_to_platdata(struct udevice *dev) static int apl_p2sb_probe(struct udevice *dev) { - if (spl_phase() == PHASE_TPL) + if (spl_phase() == PHASE_TPL) { return apl_p2sb_early_init(dev); - else if (spl_phase() == PHASE_SPL) - return apl_p2sb_spl_init(dev); + } else { + struct p2sb_platdata *plat = dev_get_platdata(dev); + + plat->mmio_base = dev_read_addr_pci(dev); + /* Don't set BDF since it should not be used */ + if (!plat->mmio_base || plat->mmio_base == FDT_ADDR_T_NONE) + return -EINVAL; + + if (spl_phase() == PHASE_SPL) + return apl_p2sb_spl_init(dev); + } return 0; } diff --git a/arch/x86/cpu/apollolake/pmc.c b/arch/x86/cpu/apollolake/pmc.c index 683c6082f2..aec0c8394c 100644 --- a/arch/x86/cpu/apollolake/pmc.c +++ b/arch/x86/cpu/apollolake/pmc.c @@ -119,8 +119,16 @@ int apl_pmc_ofdata_to_uc_platdata(struct udevice *dev) ret = dev_read_u32_array(dev, "early-regs", base, ARRAY_SIZE(base)); if (ret) return log_msg_ret("Missing/short early-regs", ret); - upriv->pmc_bar0 = (void *)base[0]; - upriv->pmc_bar2 = (void *)base[2]; + if (spl_phase() == PHASE_TPL) { + upriv->pmc_bar0 = (void *)base[0]; + upriv->pmc_bar2 = (void *)base[2]; + + /* Since PCI is not enabled, we must get the BDF manually */ + plat->bdf = pci_get_devfn(dev); + if (plat->bdf < 0) + return log_msg_ret("Cannot get PMC PCI address", + plat->bdf); + } upriv->acpi_base = base[4]; /* Since PCI is not enabled, we must get the BDF manually */ @@ -187,8 +195,14 @@ static int enable_pmcbar(struct udevice *dev) static int apl_pmc_probe(struct udevice *dev) { - if (spl_phase() == PHASE_TPL) + if (spl_phase() == PHASE_TPL) { return enable_pmcbar(dev); + } else { + struct acpi_pmc_upriv *upriv = dev_get_uclass_priv(dev); + + upriv->pmc_bar0 = (void *)dm_pci_read_bar32(dev, 0); + upriv->pmc_bar2 = (void *)dm_pci_read_bar32(dev, 2); + } return 0; } |