1 files changed, 110 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv8/fsl-lsch3/fsl_lsch3_serdes.c b/arch/arm/cpu/armv8/fsl-lsch3/fsl_lsch3_serdes.c
new file mode 100644
index 0000000000..78b92102c9
--- /dev/null
+++ b/arch/arm/cpu/armv8/fsl-lsch3/fsl_lsch3_serdes.c
@@ -0,0 +1,110 @@
+/*
+ * Copyright 2015 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <asm/arch/fsl_serdes.h>
+#include <asm/arch-fsl-lsch3/immap_lsch3.h>
+
+#ifdef CONFIG_SYS_FSL_SRDS_1
+static u8 serdes1_prtcl_map[SERDES_PRCTL_COUNT];
+#endif
+#ifdef CONFIG_SYS_FSL_SRDS_2
+static u8 serdes2_prtcl_map[SERDES_PRCTL_COUNT];
+#endif
+
+int is_serdes_configured(enum srds_prtcl device)
+{
+	int ret = 0;
+
+#ifdef CONFIG_SYS_FSL_SRDS_1
+	ret |= serdes1_prtcl_map[device];
+#endif
+#ifdef CONFIG_SYS_FSL_SRDS_2
+	ret |= serdes2_prtcl_map[device];
+#endif
+
+	return !!ret;
+}
+
+int serdes_get_first_lane(u32 sd, enum srds_prtcl device)
+{
+	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+	u32 cfg = in_le32(&gur->rcwsr[28]);
+	int i;
+
+	switch (sd) {
+#ifdef CONFIG_SYS_FSL_SRDS_1
+	case FSL_SRDS_1:
+		cfg &= FSL_CHASSIS3_RCWSR28_SRDS1_PRTCL_MASK;
+		cfg >>= FSL_CHASSIS3_RCWSR28_SRDS1_PRTCL_SHIFT;
+		break;
+#endif
+#ifdef CONFIG_SYS_FSL_SRDS_2
+	case FSL_SRDS_2:
+		cfg &= FSL_CHASSIS3_RCWSR28_SRDS2_PRTCL_MASK;
+		cfg >>= FSL_CHASSIS3_RCWSR28_SRDS2_PRTCL_SHIFT;
+		break;
+#endif
+	default:
+		printf("invalid SerDes%d\n", sd);
+		break;
+	}
+	/* Is serdes enabled at all? */
+	if (cfg == 0)
+		return -ENODEV;
+
+	for (i = 0; i < SRDS_MAX_LANES; i++) {
+		if (serdes_get_prtcl(sd, cfg, i) == device)
+			return i;
+	}
+
+	return -ENODEV;
+}
+
+void serdes_init(u32 sd, u32 sd_addr, u32 sd_prctl_mask, u32 sd_prctl_shift,
+		u8 serdes_prtcl_map[SERDES_PRCTL_COUNT])
+{
+	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+	u32 cfg;
+	int lane;
+
+	memset(serdes_prtcl_map, 0, sizeof(serdes_prtcl_map));
+
+	cfg = in_le32(&gur->rcwsr[28]) & sd_prctl_mask;
+	cfg >>= sd_prctl_shift;
+	printf("Using SERDES%d Protocol: %d (0x%x)\n", sd + 1, cfg, cfg);
+
+	if (!is_serdes_prtcl_valid(sd, cfg))
+		printf("SERDES%d[PRTCL] = 0x%x is not valid\n", sd + 1, cfg);
+
+	for (lane = 0; lane < SRDS_MAX_LANES; lane++) {
+		enum srds_prtcl lane_prtcl = serdes_get_prtcl(sd, cfg, lane);
+		if (unlikely(lane_prtcl >= SERDES_PRCTL_COUNT))
+			debug("Unknown SerDes lane protocol %d\n", lane_prtcl);
+		else
+			serdes_prtcl_map[lane_prtcl] = 1;
+	}
+}
+
+void fsl_serdes_init(void)
+{
+#ifdef CONFIG_SYS_FSL_SRDS_1
+	serdes_init(FSL_SRDS_1,
+		    CONFIG_SYS_FSL_LSCH3_SERDES_ADDR,
+		    FSL_CHASSIS3_RCWSR28_SRDS1_PRTCL_MASK,
+		    FSL_CHASSIS3_RCWSR28_SRDS1_PRTCL_SHIFT,
+		    serdes1_prtcl_map);
+#endif
+#ifdef CONFIG_SYS_FSL_SRDS_2
+	serdes_init(FSL_SRDS_2,
+		    CONFIG_SYS_FSL_LSCH3_SERDES_ADDR + FSL_SRDS_2 * 0x10000,
+		    FSL_CHASSIS3_RCWSR28_SRDS2_PRTCL_MASK,
+		    FSL_CHASSIS3_RCWSR28_SRDS2_PRTCL_SHIFT,
+		    serdes2_prtcl_map);
+#endif
+}