From ad162249cb371e9e38971676f09be791e5f3cf4a Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Mon, 22 Oct 2007 18:12:46 +0400 Subject: MPC8568E-MDS: reset UCCs to use them reliably In order to use GETH1 and GETH2 on the MPC8568E-MDS, we should reset UCCs. p.s Similar code exists in the Linux kernel board file (for capability reasons with older U-Boots), but should be removed some day. Signed-off-by: Anton Vorontsov --- board/freescale/mpc8568mds/bcsr.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'board/freescale/mpc8568mds/bcsr.c') diff --git a/board/freescale/mpc8568mds/bcsr.c b/board/freescale/mpc8568mds/bcsr.c index aae0f98e03..791a50fc92 100644 --- a/board/freescale/mpc8568mds/bcsr.c +++ b/board/freescale/mpc8568mds/bcsr.c @@ -21,6 +21,8 @@ */ #include +#include + #include "bcsr.h" void enable_8568mds_duart() @@ -54,3 +56,22 @@ void enable_8568mds_qe_mdio() bcsr[7] |= 0x01; } + +#if defined(CONFIG_UEC_ETH1) || defined(CONFIG_UEC_ETH2) +void reset_8568mds_uccs(void) +{ + volatile u8 *bcsr = (u8 *)(CFG_BCSR); + + /* Turn off UCC1 & UCC2 */ + out_8(&bcsr[8], in_8(&bcsr[8]) & ~BCSR_UCC1_GETH_EN); + out_8(&bcsr[9], in_8(&bcsr[9]) & ~BCSR_UCC2_GETH_EN); + + /* Mode is RGMII, all bits clear */ + out_8(&bcsr[11], in_8(&bcsr[11]) & ~(BCSR_UCC1_MODE_MSK | + BCSR_UCC2_MODE_MSK)); + + /* Turn UCC1 & UCC2 on */ + out_8(&bcsr[8], in_8(&bcsr[8]) | BCSR_UCC1_GETH_EN); + out_8(&bcsr[9], in_8(&bcsr[9]) | BCSR_UCC2_GETH_EN); +} +#endif -- cgit v1.2.1