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fman/mEMAC: set SETSP bit in IF_MODE regisgter for RGMII speed

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Some legacy RGMII phys don't have in band signaling for the
speed information. so set the RGMII MAC mode according to
the speed got from PHY.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Reported-by: John Traill <john.traill@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
This commit is contained in:
Zang Roy-R61911 2013-03-04 03:59:20 +00:00 committed by Andy Fleming
parent 7b700d2125
commit c5729f0b1f
2 changed files with 21 additions and 0 deletions
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4
arch/powerpc/include/asm/fsl_memac.h
View file

@ -222,6 +222,10 @@ struct memac {
/* IF_MODE - Interface Mode Register */
#define IF_MODE_EN_AUTO 0x00008000 /* 1 - Enable automatic speed selection */
#define IF_MODE_SETSP_100M 0x00000000 /* 00 - 100Mbps RGMII */
#define IF_MODE_SETSP_10M 0x00002000 /* 01 - 10Mbps RGMII */
#define IF_MODE_SETSP_1000M 0x00004000 /* 10 - 1000Mbps RGMII */
#define IF_MODE_SETSP_MASK 0x00006000 /* setsp mask bits */
#define IF_MODE_XGMII 0x00000000 /* 00- XGMII(10) interface mode */
#define IF_MODE_GMII 0x00000002 /* 10- GMII interface mode */
#define IF_MODE_MASK 0x00000003 /* mask for mode interface mode */

17
drivers/net/fm/memac.c
View file

@ -112,6 +112,23 @@ static void memac_set_interface_mode(struct fsl_enet_mac *mac,
/* Enable automatic speed selection */
if_mode |= IF_MODE_EN_AUTO;
if (type == PHY_INTERFACE_MODE_RGMII) {
if_mode &= ~IF_MODE_EN_AUTO;
if_mode &= ~IF_MODE_SETSP_MASK;
switch (speed) {
case SPEED_1000:
if_mode |= IF_MODE_SETSP_1000M;
break;
case SPEED_100:
if_mode |= IF_MODE_SETSP_100M;
break;
case SPEED_10:
if_mode |= IF_MODE_SETSP_10M;
default:
break;
}
}
debug(" %s, if_mode = %x\n", __func__, if_mode);
debug(" %s, if_status = %x\n", __func__, if_status);
out_be32(&regs->if_mode, if_mode);