diff options
| author | Elyes HAOUAS <ehaouas@noos.fr> | 2020-04-29 10:22:42 +0200 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-05-01 16:40:20 +0000 |
| commit | 6468d87dded4be460707533d3de938f709c7d460 (patch) | |
| tree | 2209bb18a98245d81b906b01ea44326b831ab925 | |
| parent | f87ad9225c5dfafc266071bb4757065bca50966f (diff) | |
soc/intel/baytrail: Fix 16-bit read/write PCI_COMMAND register
Change-Id: I9b15b5458bb8140fa9bb6b0ffb6b9c78e8d8a93b
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40848
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
| -rw-r--r-- | src/soc/intel/baytrail/smihandler.c | 8 | ||||
| -rw-r--r-- | src/soc/intel/baytrail/southcluster.c | 16 |
2 files changed, 11 insertions, 13 deletions
diff --git a/src/soc/intel/baytrail/smihandler.c b/src/soc/intel/baytrail/smihandler.c index da97535ab8..6ca4e6478b 100644 --- a/src/soc/intel/baytrail/smihandler.c +++ b/src/soc/intel/baytrail/smihandler.c @@ -58,7 +58,7 @@ static void busmaster_disable_on_bus(int bus) for (slot = 0; slot < 0x20; slot++) { for (func = 0; func < 8; func++) { - u32 reg32; + u16 reg16; pci_devfn_t dev = PCI_DEV(bus, slot, func); val = pci_read_config32(dev, PCI_VENDOR_ID); @@ -68,9 +68,9 @@ static void busmaster_disable_on_bus(int bus) continue; /* Disable Bus Mastering for this one device */ - reg32 = pci_read_config32(dev, PCI_COMMAND); - reg32 &= ~PCI_COMMAND_MASTER; - pci_write_config32(dev, PCI_COMMAND, reg32); + reg16 = pci_read_config16(dev, PCI_COMMAND); + reg16 &= ~PCI_COMMAND_MASTER; + pci_write_config16(dev, PCI_COMMAND, reg16); /* If this is a bridge, then follow it. */ hdr = pci_read_config8(dev, PCI_HEADER_TYPE); diff --git a/src/soc/intel/baytrail/southcluster.c b/src/soc/intel/baytrail/southcluster.c index b40609674f..3f83e08a4c 100644 --- a/src/soc/intel/baytrail/southcluster.c +++ b/src/soc/intel/baytrail/southcluster.c @@ -328,9 +328,9 @@ static void hda_work_around(struct device *dev) * that requires setting up the 64-bit BAR. */ pci_write_config32(dev, PCI_BASE_ADDRESS_0, TEMP_BASE_ADDRESS); pci_write_config32(dev, PCI_BASE_ADDRESS_1, 0); - pci_write_config8(dev, PCI_COMMAND, PCI_COMMAND_MEMORY); + pci_write_config16(dev, PCI_COMMAND, PCI_COMMAND_MEMORY); write32(gctl, read32(gctl) | 0x1); - pci_write_config8(dev, PCI_COMMAND, 0); + pci_write_config16(dev, PCI_COMMAND, 0); pci_write_config32(dev, PCI_BASE_ADDRESS_0, 0); } @@ -452,7 +452,7 @@ static int place_device_in_d3hot(struct device *dev) /* Common PCI device function disable. */ void southcluster_enable_dev(struct device *dev) { - uint32_t reg32; + uint16_t reg16; if (!dev->enabled) { int slot = PCI_SLOT(dev->path.pci.devfn); @@ -461,10 +461,10 @@ void southcluster_enable_dev(struct device *dev) dev_path(dev), slot, func); /* Ensure memory, io, and bus master are all disabled */ - reg32 = pci_read_config32(dev, PCI_COMMAND); - reg32 &= ~(PCI_COMMAND_MASTER | + reg16 = pci_read_config16(dev, PCI_COMMAND); + reg16 &= ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO); - pci_write_config32(dev, PCI_COMMAND, reg32); + pci_write_config16(dev, PCI_COMMAND, reg16); /* Place device in D3Hot */ if (place_device_in_d3hot(dev) < 0) { @@ -477,9 +477,7 @@ void southcluster_enable_dev(struct device *dev) sc_disable_devfn(dev); } else { /* Enable SERR */ - reg32 = pci_read_config32(dev, PCI_COMMAND); - reg32 |= PCI_COMMAND_SERR; - pci_write_config32(dev, PCI_COMMAND, reg32); + pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_SERR); } } |