1 files changed, 94 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc86xx/mpc8641_serdes.c b/arch/powerpc/cpu/mpc86xx/mpc8641_serdes.c
new file mode 100644
index 0000000000..3ae9069f1b
--- /dev/null
+++ b/arch/powerpc/cpu/mpc86xx/mpc8641_serdes.c
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <asm/io.h>
+#include <asm/immap_86xx.h>
+#include <asm/fsl_serdes.h>
+
+#define SRDS1_MAX_LANES		4
+#define SRDS2_MAX_LANES		4
+
+static u32 serdes1_prtcl_map, serdes2_prtcl_map;
+
+static u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = {
+	[0x2] = {PCIE1, PCIE1, PCIE1, PCIE1},
+	[0x3] = {PCIE1, PCIE1, PCIE1, PCIE1},
+	[0x5] = {PCIE1, PCIE1, PCIE1, PCIE1},
+	[0x6] = {PCIE1, PCIE1, PCIE1, PCIE1},
+	[0x7] = {PCIE1, PCIE1, PCIE1, PCIE1},
+	[0xf] = {PCIE1, PCIE1, PCIE1, PCIE1},
+};
+
+static u8 serdes2_cfg_tbl[][SRDS2_MAX_LANES] = {
+	[0x3] = {PCIE2, PCIE2, PCIE2, PCIE2},
+	[0x5] = {SRIO1, SRIO1, SRIO1, SRIO1},
+	[0x6] = {SRIO1, SRIO1, SRIO1, SRIO1},
+	[0x7] = {SRIO1, SRIO1, SRIO1, SRIO1},
+	[0x9] = {SRIO1, SRIO1, SRIO1, SRIO1},
+	[0xa] = {SRIO1, SRIO1, SRIO1, SRIO1},
+	[0xb] = {SRIO1, SRIO1, SRIO1, SRIO1},
+	[0xe] = {PCIE2, PCIE2, PCIE2, PCIE2},
+	[0xf] = {PCIE2, PCIE2, PCIE2, PCIE2},
+};
+
+int is_serdes_configured(enum srds_prtcl device)
+{
+	int ret = (1 << device) & serdes1_prtcl_map;
+
+	if (ret)
+		return ret;
+
+	return (1 << device) & serdes2_prtcl_map;
+}
+
+void fsl_serdes_init(void)
+{
+	immap_t *immap = (immap_t *) CONFIG_SYS_CCSRBAR;
+	ccsr_gur_t *gur = &immap->im_gur;
+	u32 pordevsr = in_be32(&gur->pordevsr);
+	u32 srds_cfg = (pordevsr & MPC8641_PORDEVSR_IO_SEL) >>
+				MPC8641_PORDEVSR_IO_SEL_SHIFT;
+	int lane;
+
+	debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
+
+	if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) {
+		printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
+		return;
+	}
+	for (lane = 0; lane < SRDS1_MAX_LANES; lane++) {
+		enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds_cfg][lane];
+		serdes1_prtcl_map |= (1 << lane_prtcl);
+	}
+
+	if (srds_cfg > ARRAY_SIZE(serdes2_cfg_tbl)) {
+		printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
+		return;
+	}
+
+	for (lane = 0; lane < SRDS2_MAX_LANES; lane++) {
+		enum srds_prtcl lane_prtcl = serdes2_cfg_tbl[srds_cfg][lane];
+		serdes2_prtcl_map |= (1 << lane_prtcl);
+	}
+}