From: Shaohui Xie Shaohui.Xie@freescale.com

1000BASE-KX(1G-KX) uses SGMII protocol but the serdes lane runs in 1G-KX mode. By default, the lane runs in SGMII mode, when a MAC uses a lane in 1G-KX mode, corresponding bit in PCCR1 for the lane needs to be set, and needs to fixup dtb accordingly for kernel to do proper initialization.

Hwconfig "fsl_1gkx" is used to indicate a MAC runs in 1G-KX mode, FM1 MAC 1/2/5/6/9/10 are available for 1G-KX, MAC 3/4 run in RGMII mode. To set a MAC runs in 1G-KX mode, set its' corresponding env in "fsl_1gkx", 'fm1_1g1' stands for FM1-MAC1, 'fm1_1g2' stands for FM1-MAC2, etc.

If all MAC 1/2/5/6/9/10 run in 1G-KX mode, the hwconfig should has below setting:

fsl_1gkx:fm1_1g1,fm1_1g2,fm1_1g5,fm1_1g6,fm1_1g9,fm1_1g10

Signed-off-by: Shaohui Xie Shaohui.Xie@freescale.com --- changes for V2: - add 1G-KX description in t208xqds README. - refined commit message. board/freescale/t208xqds/README | 12 +++++ board/freescale/t208xqds/eth_t208xqds.c | 86 +++++++++++++++++++++++++++++++++ 2 files changed, 98 insertions(+)

diff --git a/board/freescale/t208xqds/README b/board/freescale/t208xqds/README index e3eb5ba..83060c1 100755 --- a/board/freescale/t208xqds/README +++ b/board/freescale/t208xqds/README @@ -104,6 +104,18 @@ XFI: set "fsl_10gkr_copper:fm1_10g1,fm1_10g2" in hwconfig, then first two XFI ports will use copper cable, the other two XFI ports will use fiber cable. +1000BASE-KX(1G-KX): + - T2080QDS can support 1G-KX by using SGMII protocol, but serdes lane + runs in 1G-KX mode. By default, the lane runs in SGMII mode, to set a lane + in 1G-KX mode, need to set corresponding bit in SerDes Protocol Configuration + Register 1 (PCCR1), and U-boot fixup the dtb for kernel to do proper + initialization. + Hwconfig "fsl_1gkx" is used to indicate a lane runs in 1G-KX mode, MAC + 1/2/5/6/9/10 are available for 1G-KX, MAC 3/4 run in RGMII mode. To set a + MAC to use 1G-KX mode, set its' corresponding env in "fsl_1gkx", 'fm1_1g1' + stands for MAC 1, 'fm1_1g2' stands for MAC 2, etc. + For ex. set "fsl_1gkx:fm1_1g1,fm1_1g2,fm1_1g5,fm1_1g6,fm1_1g9,fm1_1g10" in + hwconfig, MAC 1/2/5/6/9/10 will use 1G-KX mode.

System Memory map ---------------- diff --git a/board/freescale/t208xqds/eth_t208xqds.c b/board/freescale/t208xqds/eth_t208xqds.c index 8675dbb..b3a4317 100644 --- a/board/freescale/t208xqds/eth_t208xqds.c +++ b/board/freescale/t208xqds/eth_t208xqds.c @@ -47,6 +47,15 @@ #define EMI2 8 #endif

+#define PCCR1_SGMIIA_KX_MASK 0x00008000 +#define PCCR1_SGMIIB_KX_MASK 0x00004000 +#define PCCR1_SGMIIC_KX_MASK 0x00002000 +#define PCCR1_SGMIID_KX_MASK 0x00001000 +#define PCCR1_SGMIIE_KX_MASK 0x00000800 +#define PCCR1_SGMIIF_KX_MASK 0x00000400 +#define PCCR1_SGMIIG_KX_MASK 0x00000200 +#define PCCR1_SGMIIH_KX_MASK 0x00000100 + static int mdio_mux[NUM_FM_PORTS];

static const char * const mdio_names[] = { @@ -195,6 +204,10 @@ void board_ft_fman_fixup_port(void *fdt, char *compat, phys_addr_t addr, int off;

ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + serdes_corenet_t *srds_regs = + (void *)CONFIG_SYS_FSL_CORENET_SERDES_ADDR; + u32 srds1_pccr1 = in_be32(&srds_regs->srdspccr1); + u32 srds_s1 = in_be32(&gur->rcwsr[4]) & FSL_CORENET2_RCWSR4_SRDS1_PRTCL;

@@ -205,9 +218,54 @@ void board_ft_fman_fixup_port(void *fdt, char *compat, phys_addr_t addr, switch (port) { #if defined(CONFIG_T2080QDS) case FM1_DTSEC1: + if (hwconfig_sub("fsl_1gkx", "fm1_1g1")) { + media_type = 1; + fdt_set_phy_handle(fdt, compat, addr, + "phy_1gkx1"); + fdt_status_okay_by_alias(fdt, "1gkx_pcs_mdio1"); + sprintf(buf, "%s%s%s", buf, "lane-c,", + (char *)lane_mode[0]); + out_be32(&srds_regs->srdspccr1, srds1_pccr1 | + PCCR1_SGMIIH_KX_MASK); + break; + } case FM1_DTSEC2: + if (hwconfig_sub("fsl_1gkx", "fm1_1g2")) { + media_type = 1; + fdt_set_phy_handle(fdt, compat, addr, + "phy_1gkx2"); + fdt_status_okay_by_alias(fdt, "1gkx_pcs_mdio2"); + sprintf(buf, "%s%s%s", buf, "lane-d,", + (char *)lane_mode[0]); + out_be32(&srds_regs->srdspccr1, srds1_pccr1 | + PCCR1_SGMIIG_KX_MASK); + break; + } case FM1_DTSEC9: + if (hwconfig_sub("fsl_1gkx", "fm1_1g9")) { + media_type = 1; + fdt_set_phy_handle(fdt, compat, addr, + "phy_1gkx9"); + fdt_status_okay_by_alias(fdt, "1gkx_pcs_mdio9"); + sprintf(buf, "%s%s%s", buf, "lane-a,", + (char *)lane_mode[0]); + out_be32(&srds_regs->srdspccr1, srds1_pccr1 | + PCCR1_SGMIIE_KX_MASK); + break; + } case FM1_DTSEC10: + if (hwconfig_sub("fsl_1gkx", "fm1_1g10")) { + media_type = 1; + fdt_set_phy_handle(fdt, compat, addr, + "phy_1gkx10"); + fdt_status_okay_by_alias(fdt, + "1gkx_pcs_mdio10"); + sprintf(buf, "%s%s%s", buf, "lane-b,", + (char *)lane_mode[0]); + out_be32(&srds_regs->srdspccr1, srds1_pccr1 | + PCCR1_SGMIIF_KX_MASK); + break; + } if (mdio_mux[port] == EMI1_SLOT2) { sprintf(alias, "phy_sgmii_s2_%x", phy); fdt_set_phy_handle(fdt, compat, addr, alias); @@ -219,7 +277,29 @@ void board_ft_fman_fixup_port(void *fdt, char *compat, phys_addr_t addr, } break; case FM1_DTSEC5: + if (hwconfig_sub("fsl_1gkx", "fm1_1g5")) { + media_type = 1; + fdt_set_phy_handle(fdt, compat, addr, + "phy_1gkx5"); + fdt_status_okay_by_alias(fdt, "1gkx_pcs_mdio5"); + sprintf(buf, "%s%s%s", buf, "lane-g,", + (char *)lane_mode[0]); + out_be32(&srds_regs->srdspccr1, srds1_pccr1 | + PCCR1_SGMIIC_KX_MASK); + break; + } case FM1_DTSEC6: + if (hwconfig_sub("fsl_1gkx", "fm1_1g6")) { + media_type = 1; + fdt_set_phy_handle(fdt, compat, addr, + "phy_1gkx6"); + fdt_status_okay_by_alias(fdt, "1gkx_pcs_mdio6"); + sprintf(buf, "%s%s%s", buf, "lane-h,", + (char *)lane_mode[0]); + out_be32(&srds_regs->srdspccr1, srds1_pccr1 | + PCCR1_SGMIID_KX_MASK); + break; + } if (mdio_mux[port] == EMI1_SLOT1) { sprintf(alias, "phy_sgmii_s1_%x", phy); fdt_set_phy_handle(fdt, compat, addr, alias); @@ -263,6 +343,12 @@ void board_ft_fman_fixup_port(void *fdt, char *compat, phys_addr_t addr, default: break; } + if (media_type) { + /* set property for 1000BASE-KX in dtb */ + off = fdt_node_offset_by_compat_reg(fdt, + "fsl,fman-memac-mdio", addr + 0x1000); + fdt_setprop_string(fdt, off, "lane-instance", buf); + }

} else if (fm_info_get_enet_if(port) == PHY_INTERFACE_MODE_XGMII) { switch (srds_s1) {