Cc: Thomas Huth <thuth@xxxxxxxxxx>
Cc: Andrew Jones <drjones@xxxxxxxxxx>
Signed-off-by: Alexander Gordeev <agordeev@xxxxxxxxxx>
---
lib/pci.c | 8 ++++++++
lib/pci.h | 1 +
2 files changed, 9 insertions(+)
diff --git a/lib/pci.c b/lib/pci.c
index 43e9c0c38434..46aee60e0f90 100644
--- a/lib/pci.c
+++ b/lib/pci.c
@@ -84,6 +84,14 @@ phys_addr_t pci_bar_size(pcidevaddr_t dev, int bar_num)
}
}
+void pci_bar_set(pcidevaddr_t dev, int bar_num, uint64_t addr)
+{
+ int off = PCI_BASE_ADDRESS_0 + bar_num * 4;
+ pci_config_writel(dev, off, (uint32_t)addr);
+ if (pci_bar_is64(dev, bar_num))
+ pci_config_writel(dev, (uint32_t)(addr >> 32), off + 4);
+}
+
bool pci_bar_is_memory(pcidevaddr_t dev, int bar_num)
{
uint32_t bar = pci_config_readl(dev, PCI_BASE_ADDRESS_0 + bar_num * 4);
diff --git a/lib/pci.h b/lib/pci.h
index 09b500ea19f0..69d2a62f1b32 100644
--- a/lib/pci.h
+++ b/lib/pci.h
@@ -15,6 +15,7 @@ enum {
PCIDEVADDR_INVALID = 0xffff,
};
pcidevaddr_t pci_find_dev(uint16_t vendor_id, uint16_t device_id);
+void pci_bar_set(pcidevaddr_t dev, int bar_num, uint64_t addr);
phys_addr_t pci_bar_addr(pcidevaddr_t dev, int bar_num);
phys_addr_t pci_bar_size(pcidevaddr_t dev, int bar_num);
bool pci_bar_is64(pcidevaddr_t dev, int bar_num);
--
1.8.3.1
--
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