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Diffstat (limited to 'src/device/pci_early.c')
-rw-r--r--src/device/pci_early.c33
1 files changed, 18 insertions, 15 deletions
diff --git a/src/device/pci_early.c b/src/device/pci_early.c
index 6baebe0c28..4cf8c7e68c 100644
--- a/src/device/pci_early.c
+++ b/src/device/pci_early.c
@@ -20,7 +20,7 @@
#include <device/pci_def.h>
#include <delay.h>
-#ifdef __PRE_RAM__
+#if !ENV_RAMSTAGE
unsigned pci_find_next_capability(pci_devfn_t dev, unsigned cap, unsigned last)
{
unsigned pos = 0;
@@ -68,12 +68,11 @@ unsigned pci_find_capability(pci_devfn_t dev, unsigned cap)
{
return pci_find_next_capability(dev, cap, 0);
}
-#endif /* __PRE_RAM__ */
-
+#endif
#if IS_ENABLED(CONFIG_EARLY_PCI_BRIDGE)
-static void pci_bridge_reset_secondary(device_t p2p_bridge)
+static void pci_bridge_reset_secondary(pci_devfn_t p2p_bridge)
{
u16 reg16;
@@ -90,7 +89,7 @@ static void pci_bridge_reset_secondary(device_t p2p_bridge)
pci_write_config16(p2p_bridge, PCI_BRIDGE_CONTROL, reg16);
}
-static void pci_bridge_set_secondary(device_t p2p_bridge, u8 secondary)
+static void pci_bridge_set_secondary(pci_devfn_t p2p_bridge, u8 secondary)
{
/* Disable config transaction forwarding. */
pci_write_config8(p2p_bridge, PCI_SECONDARY_BUS, 0x00);
@@ -100,7 +99,7 @@ static void pci_bridge_set_secondary(device_t p2p_bridge, u8 secondary)
pci_write_config8(p2p_bridge, PCI_SUBORDINATE_BUS, secondary);
}
-static void pci_bridge_set_mmio(device_t p2p_bridge, u32 base, u32 size)
+static void pci_bridge_set_mmio(pci_devfn_t p2p_bridge, u32 base, u32 size)
{
u16 reg16;
@@ -122,27 +121,20 @@ static void pci_bridge_set_mmio(device_t p2p_bridge, u32 base, u32 size)
pci_write_config16(p2p_bridge, PCI_COMMAND, reg16);
}
-void pci_early_bridge_init(void)
+void pci_early_mmio_window(pci_devfn_t p2p_bridge, u32 mmio_base, u32 mmio_size)
{
int timeout, ret = -1;
- /* No PCI-to-PCI bridges are enabled yet, so the one we try to
- * configure must have its primary on bus 0.
- */
- pci_devfn_t p2p_bridge = PCI_DEV(0, CONFIG_EARLY_PCI_BRIDGE_DEVICE,
- CONFIG_EARLY_PCI_BRIDGE_FUNCTION);
-
/* Secondary bus number is mostly irrelevant as we disable
* configuration transactions right after the probe.
*/
u8 secondary = 15;
u8 dev = 0;
- u32 mmio_base = CONFIG_EARLY_PCI_MMIO_BASE;
/* Enable configuration and MMIO over bridge. */
pci_bridge_reset_secondary(p2p_bridge);
pci_bridge_set_secondary(p2p_bridge, secondary);
- pci_bridge_set_mmio(p2p_bridge, mmio_base, 0x4000);
+ pci_bridge_set_mmio(p2p_bridge, mmio_base, mmio_size);
for (timeout = 20000; timeout; timeout--) {
u32 id = pci_read_config32(PCI_DEV(secondary, dev, 0), PCI_VENDOR_ID);
@@ -164,4 +156,15 @@ void pci_early_bridge_init(void)
*/
pci_bridge_set_secondary(p2p_bridge, 0);
}
+
+void pci_early_bridge_init(void)
+{
+ /* No PCI-to-PCI bridges are enabled yet, so the one we try to
+ * configure must have its primary on bus 0.
+ */
+ pci_devfn_t p2p_bridge = PCI_DEV(0, CONFIG_EARLY_PCI_BRIDGE_DEVICE,
+ CONFIG_EARLY_PCI_BRIDGE_FUNCTION);
+
+ pci_early_mmio_window(p2p_bridge, CONFIG_EARLY_PCI_MMIO_BASE, 0x4000);
+}
#endif /* CONFIG_EARLY_PCI_BRIDGE */