1 files changed, 114 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/p1022_serdes.c b/arch/powerpc/cpu/mpc85xx/p1022_serdes.c
new file mode 100644
index 0000000000..e4c9c22100
--- /dev/null
+++ b/arch/powerpc/cpu/mpc85xx/p1022_serdes.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ * Author: Timur Tabi <timur@freescale.com>
+ *
+ * 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.
+ */
+
+#include <config.h>
+#include <common.h>
+#include <asm/io.h>
+#include <asm/immap_85xx.h>
+#include <asm/fsl_serdes.h>
+
+#define SRDS1_MAX_LANES		4
+#define SRDS2_MAX_LANES		2
+
+static u32 serdes1_prtcl_map, serdes2_prtcl_map;
+
+static const u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = {
+	[0x00] = {NONE, NONE, NONE, NONE},
+	[0x01] = {NONE, NONE, NONE, NONE},
+	[0x02] = {NONE, NONE, NONE, NONE},
+	[0x03] = {NONE, NONE, NONE, NONE},
+	[0x04] = {NONE, NONE, NONE, NONE},
+	[0x06] = {PCIE1, PCIE3, SGMII_TSEC1, PCIE2},
+	[0x07] = {PCIE1, PCIE3, SGMII_TSEC1, PCIE2},
+	[0x09] = {PCIE1, NONE, NONE, NONE},
+	[0x0a] = {PCIE1, PCIE3, SGMII_TSEC1, SGMII_TSEC2},
+	[0x0b] = {PCIE1, PCIE3, SGMII_TSEC1, SGMII_TSEC2},
+	[0x0d] = {PCIE1, PCIE1, SGMII_TSEC1, SGMII_TSEC2},
+	[0x0e] = {PCIE1, PCIE1, SGMII_TSEC1, SGMII_TSEC2},
+	[0x0f] = {PCIE1, PCIE1, SGMII_TSEC1, SGMII_TSEC2},
+	[0x15] = {PCIE1, PCIE3, PCIE2, PCIE2},
+	[0x16] = {PCIE1, PCIE3, PCIE2, PCIE2},
+	[0x17] = {PCIE1, PCIE3, PCIE2, PCIE2},
+	[0x18] = {PCIE1, PCIE1, PCIE2, PCIE2},
+	[0x19] = {PCIE1, PCIE1, PCIE2, PCIE2},
+	[0x1a] = {PCIE1, PCIE1, PCIE2, PCIE2},
+	[0x1b] = {PCIE1, PCIE1, PCIE2, PCIE2},
+	[0x1c] = {PCIE1, PCIE1, PCIE1, PCIE1},
+	[0x1d] = {PCIE1, PCIE1, PCIE2, PCIE2},
+	[0x1e] = {PCIE1, PCIE1, PCIE2, PCIE2},
+	[0x1f] = {PCIE1, PCIE1, PCIE2, PCIE2},
+};
+
+static const u8 serdes2_cfg_tbl[][SRDS2_MAX_LANES] = {
+	[0x00] = {PCIE3, PCIE3},
+	[0x01] = {PCIE2, PCIE3},
+	[0x02] = {SATA1, SATA2},
+	[0x03] = {SGMII_TSEC1, SGMII_TSEC2},
+	[0x04] = {NONE, NONE},
+	[0x06] = {SATA1, SATA2},
+	[0x07] = {NONE, NONE},
+	[0x09] = {PCIE3, PCIE2},
+	[0x0a] = {SATA1, SATA2},
+	[0x0b] = {NONE, NONE},
+	[0x0d] = {PCIE3, PCIE2},
+	[0x0e] = {SATA1, SATA2},
+	[0x0f] = {NONE, NONE},
+	[0x15] = {SGMII_TSEC1, SGMII_TSEC2},
+	[0x16] = {SATA1, SATA2},
+	[0x17] = {NONE, NONE},
+	[0x18] = {PCIE3, PCIE3},
+	[0x19] = {SGMII_TSEC1, SGMII_TSEC2},
+	[0x1a] = {SATA1, SATA2},
+	[0x1b] = {NONE, NONE},
+	[0x1c] = {PCIE3, PCIE3},
+	[0x1d] = {SGMII_TSEC1, SGMII_TSEC2},
+	[0x1e] = {SATA1, SATA2},
+	[0x1f] = {NONE, NONE},
+};
+
+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)
+{
+	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+	u32 pordevsr = in_be32(&gur->pordevsr);
+	u32 srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
+				MPC85xx_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);
+	}
+}