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Diffstat (limited to 'arch/x86/cpu/pci.c')
-rw-r--r--arch/x86/cpu/pci.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/x86/cpu/pci.c b/arch/x86/cpu/pci.c
index 2d8f16c..e399388 100644
--- a/arch/x86/cpu/pci.c
+++ b/arch/x86/cpu/pci.c
@@ -46,3 +46,53 @@ void pci_init_board(void)
hose->last_busno = pci_hose_scan(hose);
}
+
+static struct pci_controller *get_hose(void)
+{
+ if (gd->arch.hose)
+ return gd->arch.hose;
+
+ return pci_bus_to_hose(0);
+}
+
+unsigned int pci_read_config8(pci_dev_t dev, unsigned where)
+{
+ uint8_t value;
+
+ pci_hose_read_config_byte(get_hose(), dev, where, &value);
+
+ return value;
+}
+
+unsigned int pci_read_config16(pci_dev_t dev, unsigned where)
+{
+ uint16_t value;
+
+ pci_hose_read_config_word(get_hose(), dev, where, &value);
+
+ return value;
+}
+
+unsigned int pci_read_config32(pci_dev_t dev, unsigned where)
+{
+ uint32_t value;
+
+ pci_hose_read_config_dword(get_hose(), dev, where, &value);
+
+ return value;
+}
+
+void pci_write_config8(pci_dev_t dev, unsigned where, unsigned value)
+{
+ pci_hose_write_config_byte(get_hose(), dev, where, value);
+}
+
+void pci_write_config16(pci_dev_t dev, unsigned where, unsigned value)
+{
+ pci_hose_write_config_word(get_hose(), dev, where, value);
+}
+
+void pci_write_config32(pci_dev_t dev, unsigned where, unsigned value)
+{
+ pci_hose_write_config_dword(get_hose(), dev, where, value);
+}