ppc4xx: Kilauea: Add PCIe reset assertion upon power-up

This manual PCIe reset triggering solves the problem seen with the
Intel EPRO/1000 card, which was not detected (link not established)
upon power-up reset.

Signed-off-by: Stefan Roese <sr@denx.de>

diff --git a/board/amcc/kilauea/kilauea.c b/board/amcc/kilauea/kilauea.c
index 09b7382..36e9e4a 100644 (file)
--- a/board/amcc/kilauea/kilauea.c
+++ b/board/amcc/kilauea/kilauea.c
@@ -37,14 +37,6 @@ DECLARE_GLOBAL_DATA_PTR;
 
 extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips   */
 
-void fpga_init(void)
-{
-       /*
-        * Set FPGA regs
-        */
-       out32(CFG_FPGA_BASE, 0xff570cc0);
-}
-
 /*
  * Board early initialization function
  */
@@ -199,7 +191,12 @@ int board_early_init_f (void)
         */
        mtsdr(SDR0_SRST, 0);
 
-       fpga_init();
+       /*
+        * Configure FPGA register with PCIe reset
+        */
+       out_be32((void *)CFG_FPGA_BASE, 0xff570cc0);    /* assert PCIe reset */
+       mdelay(50);
+       out_be32((void *)CFG_FPGA_BASE, 0xff570cc3);    /* deassert PCIe reset */
 
        /* Configure 405EX for NAND usage */
        val = SDR0_CUST0_MUX_NDFC_SEL |