1 files changed, 58 insertions, 0 deletions
diff --git a/roms/u-boot/arch/powerpc/cpu/mpc85xx/mpc8568_serdes.c b/roms/u-boot/arch/powerpc/cpu/mpc85xx/mpc8568_serdes.c
new file mode 100644
index 000000000..81b66c3fa
--- /dev/null
+++ b/roms/u-boot/arch/powerpc/cpu/mpc85xx/mpc8568_serdes.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ */
+
+#include <config.h>
+#include <common.h>
+#include <log.h>
+#include <asm/io.h>
+#include <asm/immap_85xx.h>
+#include <asm/fsl_serdes.h>
+
+#define SRDS1_MAX_LANES		8
+
+static u32 serdes1_prtcl_map;
+
+static u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = {
+	[0x3] = {PCIE1, PCIE1, PCIE1, PCIE1, SRIO1, SRIO1, SRIO1, SRIO1},
+	[0x4] = {PCIE1, PCIE1, PCIE1, PCIE1, SRIO1, SRIO1, SRIO1, SRIO1},
+	[0x5] = {NONE, NONE, NONE, NONE, SRIO1, SRIO1, SRIO1, SRIO1},
+	[0x6] = {NONE, NONE, NONE, NONE, SRIO1, SRIO1, SRIO1, SRIO1},
+	[0x7] = {PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1},
+};
+
+int is_serdes_configured(enum srds_prtcl prtcl)
+{
+	if (!(serdes1_prtcl_map & (1 << NONE)))
+		fsl_serdes_init();
+
+	return (1 << prtcl) & serdes1_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;
+
+	if (serdes1_prtcl_map & (1 << NONE))
+		return;
+
+	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);
+	}
+
+	/* Set the first bit to indicate serdes has been initialized */
+	serdes1_prtcl_map |= (1 << NONE);
+}