diff options
Diffstat (limited to 'src/soc/intel/common/block')
| -rw-r--r-- | src/soc/intel/common/block/cse/cse.c | 18 | ||||
| -rw-r--r-- | src/soc/intel/common/block/include/intelblocks/cse.h | 6 |
2 files changed, 18 insertions, 6 deletions
diff --git a/src/soc/intel/common/block/cse/cse.c b/src/soc/intel/common/block/cse/cse.c index 471bc1b341a8..e41e3375501b 100644 --- a/src/soc/intel/common/block/cse/cse.c +++ b/src/soc/intel/common/block/cse/cse.c @@ -581,23 +581,29 @@ int heci_reset(void) return 0; } -bool is_cse_enabled(void) +bool is_cse_devfn_visible(unsigned int devfn) { - const struct device *cse_dev = pcidev_path_on_root(PCH_DEVFN_CSE); + int slot = PCI_SLOT(devfn); + int func = PCI_FUNC(devfn); - if (!cse_dev || !cse_dev->enabled) { - printk(BIOS_WARNING, "HECI: No CSE device\n"); + if (!is_devfn_enabled(devfn)) { + printk(BIOS_WARNING, "HECI: CSE device %02x.%01x is disabled\n", slot, func); return false; } - if (pci_read_config16(PCH_DEV_CSE, PCI_VENDOR_ID) == 0xFFFF) { - printk(BIOS_WARNING, "HECI: CSE device is hidden\n"); + if (pci_read_config16(PCI_DEV(0, slot, func), PCI_VENDOR_ID) == 0xFFFF) { + printk(BIOS_WARNING, "HECI: CSE device %02x.%01x is hidden\n", slot, func); return false; } return true; } +bool is_cse_enabled(void) +{ + return is_cse_devfn_visible(PCH_DEVFN_CSE); +} + uint32_t me_read_config32(int offset) { return pci_read_config32(PCH_DEV_CSE, offset); diff --git a/src/soc/intel/common/block/include/intelblocks/cse.h b/src/soc/intel/common/block/include/intelblocks/cse.h index 076f29465c3e..f162d485fde0 100644 --- a/src/soc/intel/common/block/include/intelblocks/cse.h +++ b/src/soc/intel/common/block/include/intelblocks/cse.h @@ -153,6 +153,12 @@ void heci_disable(void); uint32_t me_read_config32(int offset); /* + * Check if the CSE device as per function argument `devfn` is enabled in device tree + * and also visible on the PCI bus. + */ +bool is_cse_devfn_visible(unsigned int devfn); + +/* * Check if the CSE device is enabled in device tree. Also check if the device * is visible on the PCI bus by reading config space. * Return true if device present and config space enabled, else return false. |