From: Valentin Longchamp <valentin.longch...@keymile.com>
The PCIe FPGAs now have to support 2 resets: one for the non traffic
affecting part (PCIe) and one for the traffic affecting part.
When the FPGA is not reconfigured, we only reset the PCIe part.
Signed-off-by: Valentin Longchamp <valentin.longch...@keymile.com>
---
board/keymile/km_arm/fpga_config.c | 11 ++++++++---
1 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/board/keymile/km_arm/fpga_config.c
b/board/keymile/km_arm/fpga_config.c
index fdc8727..fcc5fe6 100644
--- a/board/keymile/km_arm/fpga_config.c
+++ b/board/keymile/km_arm/fpga_config.c
@@ -206,25 +206,30 @@ int wait_for_fpga_config(void)
}
#define PRST1 0x4
-#define BRIDGE_RST 0x4
+#define PCIE_RST 0x10
+#define TRAFFIC_RST 0x04
int fpga_reset(void)
{
int ret = 0;
+ u8 resets;
if (!check_boco2()) {
/* we do not have BOCO2, this is not really used */
return 0;
}
- ret = boco_clear_bits(PRST1, BRIDGE_RST);
+ /* if we have skipped, we only want to reset the PCIe part */
+ resets = skip ? PCIE_RST : PCIE_RST | TRAFFIC_RST;
+
+ ret = boco_clear_bits(PRST1, resets);
if (ret)
return ret;
/* small delay for the pulse */
udelay(10);
- ret = boco_set_bits(PRST1, BRIDGE_RST);
+ ret = boco_set_bits(PRST1, resets);
if (ret)
return ret;
--
1.7.1
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
