From mboxrd@z Thu Jan 1 00:00:00 1970 From: York Sun Date: Fri, 22 Mar 2013 10:29:28 -0700 Subject: [U-Boot] [PATCH 30/31] fman/mEMAC: set SETSP bit in IF_MODE regisgter for RGMII speed In-Reply-To: <1363973369-26110-1-git-send-email-yorksun@freescale.com> References: <1363973369-26110-1-git-send-email-yorksun@freescale.com> Message-ID: <1363973369-26110-30-git-send-email-yorksun@freescale.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de From: Roy ZANG 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 Reported-by: John Traill --- arch/powerpc/include/asm/fsl_memac.h | 4 ++++ drivers/net/fm/memac.c | 15 +++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/arch/powerpc/include/asm/fsl_memac.h b/arch/powerpc/include/asm/fsl_memac.h index d6b60e6..69f95d1 100644 --- a/arch/powerpc/include/asm/fsl_memac.h +++ b/arch/powerpc/include/asm/fsl_memac.h @@ -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 */ diff --git a/drivers/net/fm/memac.c b/drivers/net/fm/memac.c index 32c7054..fa14113 100644 --- a/drivers/net/fm/memac.c +++ b/drivers/net/fm/memac.c @@ -112,6 +112,21 @@ 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; + case SPEED_100: + if_mode |= IF_MODE_SETSP_100M; + 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(®s->if_mode, if_mode); -- 1.7.9.5