powerpc/83xx/km: add MV88E6122 switch support for kmvect1
kmvect1 has a UEC2 connection to the piggy board and a UEC0 connection
to the switch MV88E6122. This switch has a connection to a frontport
ethernet interface. The ethernet port used for network booting is
automatically selected by u-boot. If a Piggy is plugged, the Piggy
port is selected (UEC2, eth1). If the Piggy isn't present, the
Frontport is selected (UEC0, eth0).
The switch reset is connected to a GPIO on the PRIO3 board FPGA (GPIO28)
and released at startup.
Signed-off-by: Karlheinz Jerg <karlheinz.jerg@keymile.com>
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
diff --git a/board/keymile/km83xx/km83xx.c b/board/keymile/km83xx/km83xx.c
index b027173..1e8e2cc 100644
--- a/board/keymile/km83xx/km83xx.c
+++ b/board/keymile/km83xx/km83xx.c
@@ -215,8 +215,75 @@
return 0;
}
+#if defined(CONFIG_KMVECT1)
+#include <mv88e6352.h>
+/* Marvell MV88E6122 switch configuration */
+static struct mv88e_sw_reg extsw_conf[] = {
+ /* port 1, FRONT_MDI, autoneg */
+ { PORT(1), PORT_PHY, NO_SPEED_FOR },
+ { PORT(1), PORT_CTRL, FORWARDING | EGRS_FLD_ALL },
+ { PHY(1), PHY_1000_CTRL, NO_ADV },
+ { PHY(1), PHY_SPEC_CTRL, AUTO_MDIX_EN },
+ { PHY(1), PHY_CTRL, PHY_100_MBPS | AUTONEG_EN | AUTONEG_RST |
+ FULL_DUPLEX },
+ /* port 2, unused */
+ { PORT(2), PORT_CTRL, PORT_DIS },
+ { PHY(2), PHY_CTRL, PHY_PWR_DOWN },
+ { PHY(2), PHY_SPEC_CTRL, SPEC_PWR_DOWN },
+ /* port 3, BP_MII (CPU), PHY mode, 100BASE */
+ { PORT(3), PORT_CTRL, FORWARDING | EGRS_FLD_ALL },
+ /* port 4, ESTAR to slot 11, SerDes, 1000BASE-X */
+ { PORT(4), PORT_STATUS, NO_PHY_DETECT },
+ { PORT(4), PORT_PHY, SPEED_1000_FOR },
+ { PORT(4), PORT_CTRL, FORWARDING | EGRS_FLD_ALL },
+ /* port 5, ESTAR to slot 13, SerDes, 1000BASE-X */
+ { PORT(5), PORT_STATUS, NO_PHY_DETECT },
+ { PORT(5), PORT_PHY, SPEED_1000_FOR },
+ { PORT(5), PORT_CTRL, FORWARDING | EGRS_FLD_ALL },
+ /*
+ * Errata Fix: 1.9V Output from Internal 1.8V Regulator,
+ * acc . MV-S300889-00D.pdf , clause 4.5
+ */
+ { PORT(5), 0x1A, 0xADB1 },
+ /* port 6, unused, this port has no phy */
+ { PORT(6), PORT_CTRL, PORT_DIS },
+};
+#endif
+
int last_stage_init(void)
{
+#if defined(CONFIG_KMVECT1)
+ struct km_bec_fpga __iomem *base =
+ (struct km_bec_fpga __iomem *)CONFIG_SYS_KMBEC_FPGA_BASE;
+ u8 tmp_reg;
+
+ /* Release mv88e6122 from reset */
+ tmp_reg = in_8(&base->res1[0]) | 0x10; /* DIRECT3 register */
+ out_8(&base->res1[0], tmp_reg); /* GP28 as output */
+ tmp_reg = in_8(&base->gprt3) | 0x10; /* GP28 to high */
+ out_8(&base->gprt3, tmp_reg);
+
+ /* configure MV88E6122 switch */
+ char *name = "UEC2";
+
+ if (miiphy_set_current_dev(name))
+ return 0;
+
+ mv88e_sw_program(name, CONFIG_KM_MVEXTSW_ADDR, extsw_conf,
+ ARRAY_SIZE(extsw_conf));
+
+ mv88e_sw_reset(name, CONFIG_KM_MVEXTSW_ADDR);
+
+ if (piggy_present()) {
+ setenv("ethact", "UEC2");
+ setenv("netdev", "eth1");
+ puts("using PIGGY for network boot\n");
+ } else {
+ setenv("netdev", "eth0");
+ puts("using frontport for network boot\n");
+ }
+#endif
+
#if defined(CONFIG_KMCOGE5NE)
struct bfticu_iomap *base =
(struct bfticu_iomap *)CONFIG_SYS_BFTIC3_BASE;