Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 665 insertions, 0 deletions

diff --git a/roms/u-boot/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_serdes.c b/roms/u-boot/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_serdes.c
new file mode 100644
index 000000000..fad7a9356
--- /dev/null
+++ b/roms/u-boot/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_serdes.c
@@ -0,0 +1,665 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2016-2018, 2020 NXP
+ * Copyright 2014-2015 Freescale Semiconductor, Inc.
+ */
+
+#include <common.h>
+#include <env.h>
+#include <log.h>
+#include <asm/io.h>
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <asm/arch/fsl_serdes.h>
+#include <asm/arch/soc.h>
+#include <fsl-mc/ldpaa_wriop.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
+#ifdef CONFIG_SYS_NXP_SRDS_3
+static u8 serdes3_prtcl_map[SERDES_PRCTL_COUNT];
+#endif
+
+#if defined(CONFIG_FSL_MC_ENET) && !defined(CONFIG_SPL_BUILD)
+#if defined(CONFIG_ARCH_LX2160A) || defined(CONFIG_ARCH_LX2162A)
+int xfi_dpmac[XFI14 + 1];
+int sgmii_dpmac[SGMII18 + 1];
+int a25gaui_dpmac[_25GE10 + 1];
+int xlaui_dpmac[_40GE2 + 1];
+int caui2_dpmac[_50GE2 + 1];
+int caui4_dpmac[_100GE2 + 1];
+#else
+int xfi_dpmac[XFI8 + 1];
+int sgmii_dpmac[SGMII16 + 1];
+#endif
+#endif
+
+__weak void wriop_init_dpmac_qsgmii(int sd, int lane_prtcl)
+{
+	return;
+}
+
+/*
+ *The return value of this func is the serdes protocol used.
+ *Typically this function is called number of times depending
+ *upon the number of serdes blocks in the Silicon.
+ *Zero is used to denote that no serdes was enabled,
+ *this is the case when golden RCW was used where DPAA2 bring was
+ *intentionally removed to achieve boot to prompt
+*/
+
+__weak int serdes_get_number(int serdes, int cfg)
+{
+	return cfg;
+}
+
+int is_serdes_configured(enum srds_prtcl device)
+{
+	int ret = 0;
+
+#ifdef CONFIG_SYS_FSL_SRDS_1
+	if (!serdes1_prtcl_map[NONE])
+		fsl_serdes_init();
+
+	ret |= serdes1_prtcl_map[device];
+#endif
+#ifdef CONFIG_SYS_FSL_SRDS_2
+	if (!serdes2_prtcl_map[NONE])
+		fsl_serdes_init();
+
+	ret |= serdes2_prtcl_map[device];
+#endif
+#ifdef CONFIG_SYS_NXP_SRDS_3
+	if (!serdes3_prtcl_map[NONE])
+		fsl_serdes_init();
+
+	ret |= serdes3_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 = 0;
+	int i;
+
+	switch (sd) {
+#ifdef CONFIG_SYS_FSL_SRDS_1
+	case FSL_SRDS_1:
+		cfg = gur_in32(&gur->rcwsr[FSL_CHASSIS3_SRDS1_REGSR - 1]);
+		cfg &= FSL_CHASSIS3_SRDS1_PRTCL_MASK;
+		cfg >>= FSL_CHASSIS3_SRDS1_PRTCL_SHIFT;
+		break;
+#endif
+#ifdef CONFIG_SYS_FSL_SRDS_2
+	case FSL_SRDS_2:
+		cfg = gur_in32(&gur->rcwsr[FSL_CHASSIS3_SRDS2_REGSR - 1]);
+		cfg &= FSL_CHASSIS3_SRDS2_PRTCL_MASK;
+		cfg >>= FSL_CHASSIS3_SRDS2_PRTCL_SHIFT;
+		break;
+#endif
+#ifdef CONFIG_SYS_NXP_SRDS_3
+	case NXP_SRDS_3:
+		cfg = gur_in32(&gur->rcwsr[FSL_CHASSIS3_SRDS3_REGSR - 1]);
+		cfg &= FSL_CHASSIS3_SRDS3_PRTCL_MASK;
+		cfg >>= FSL_CHASSIS3_SRDS3_PRTCL_SHIFT;
+		break;
+#endif
+	default:
+		printf("invalid SerDes%d\n", sd);
+		break;
+	}
+
+	cfg = serdes_get_number(sd, cfg);
+
+	/* 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 rcwsr, 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;
+
+	if (serdes_prtcl_map[NONE])
+		return;
+
+	memset(serdes_prtcl_map, 0, sizeof(u8) * SERDES_PRCTL_COUNT);
+
+	cfg = gur_in32(&gur->rcwsr[rcwsr - 1]) & sd_prctl_mask;
+	cfg >>= sd_prctl_shift;
+
+	cfg = serdes_get_number(sd, cfg);
+	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;
+#if defined(CONFIG_FSL_MC_ENET) && !defined(CONFIG_SPL_BUILD)
+#if defined(CONFIG_ARCH_LX2160A) || defined(CONFIG_ARCH_LX2162A)
+			if (lane_prtcl >= XFI1 && lane_prtcl <= XFI14)
+				wriop_init_dpmac(sd, xfi_dpmac[lane_prtcl],
+						 (int)lane_prtcl);
+
+			if (lane_prtcl >= SGMII1 && lane_prtcl <= SGMII18)
+				wriop_init_dpmac(sd, sgmii_dpmac[lane_prtcl],
+						 (int)lane_prtcl);
+
+			if (lane_prtcl >= _25GE1 && lane_prtcl <= _25GE10)
+				wriop_init_dpmac(sd, a25gaui_dpmac[lane_prtcl],
+						 (int)lane_prtcl);
+
+			if (lane_prtcl >= _40GE1 && lane_prtcl <= _40GE2)
+				wriop_init_dpmac(sd, xlaui_dpmac[lane_prtcl],
+						 (int)lane_prtcl);
+
+			if (lane_prtcl >= _50GE1 && lane_prtcl <= _50GE2)
+				wriop_init_dpmac(sd, caui2_dpmac[lane_prtcl],
+						 (int)lane_prtcl);
+
+			if (lane_prtcl >= _100GE1 && lane_prtcl <= _100GE2)
+				wriop_init_dpmac(sd, caui4_dpmac[lane_prtcl],
+						 (int)lane_prtcl);
+
+#else
+			switch (lane_prtcl) {
+			case QSGMII_A:
+			case QSGMII_B:
+			case QSGMII_C:
+			case QSGMII_D:
+				wriop_init_dpmac_qsgmii(sd, (int)lane_prtcl);
+				break;
+			default:
+				if (lane_prtcl >= XFI1 && lane_prtcl <= XFI8)
+					wriop_init_dpmac(sd,
+							 xfi_dpmac[lane_prtcl],
+							 (int)lane_prtcl);
+
+				 if (lane_prtcl >= SGMII1 &&
+				     lane_prtcl <= SGMII16)
+					wriop_init_dpmac(sd, sgmii_dpmac[
+							 lane_prtcl],
+							 (int)lane_prtcl);
+				break;
+			}
+#endif
+#endif
+		}
+	}
+
+	/* Set the first element to indicate serdes has been initialized */
+	serdes_prtcl_map[NONE] = 1;
+}
+
+__weak int get_serdes_volt(void)
+{
+	return -1;
+}
+
+__weak int set_serdes_volt(int svdd)
+{
+	return -1;
+}
+
+#define LNAGCR0_RT_RSTB		0x00600000
+
+#define RSTCTL_RESET_MASK	0x000000E0
+
+#define RSTCTL_RSTREQ		0x80000000
+#define RSTCTL_RST_DONE		0x40000000
+#define RSTCTL_RSTERR		0x20000000
+
+#define RSTCTL_SDEN		0x00000020
+#define RSTCTL_SDRST_B		0x00000040
+#define RSTCTL_PLLRST_B		0x00000080
+
+#define TCALCR_CALRST_B		0x08000000
+
+struct serdes_prctl_info {
+	u32 id;
+	u32 mask;
+	u32 shift;
+};
+
+struct serdes_prctl_info srds_prctl_info[] = {
+#ifdef CONFIG_SYS_FSL_SRDS_1
+	{.id = 1,
+	 .mask = FSL_CHASSIS3_SRDS1_PRTCL_MASK,
+	 .shift = FSL_CHASSIS3_SRDS1_PRTCL_SHIFT
+	},
+
+#endif
+#ifdef CONFIG_SYS_FSL_SRDS_2
+	{.id = 2,
+	 .mask = FSL_CHASSIS3_SRDS2_PRTCL_MASK,
+	 .shift = FSL_CHASSIS3_SRDS2_PRTCL_SHIFT
+	},
+#endif
+#ifdef CONFIG_SYS_NXP_SRDS_3
+	{.id = 3,
+	 .mask = FSL_CHASSIS3_SRDS3_PRTCL_MASK,
+	 .shift = FSL_CHASSIS3_SRDS3_PRTCL_SHIFT
+	},
+#endif
+	{} /* NULL ENTRY */
+};
+
+static int get_serdes_prctl_info_idx(u32 serdes_id)
+{
+	int pos = 0;
+	struct serdes_prctl_info *srds_info;
+
+	/* loop until NULL ENTRY defined by .id=0 */
+	for (srds_info = srds_prctl_info; srds_info->id != 0;
+	     srds_info++, pos++) {
+		if (srds_info->id == serdes_id)
+			return pos;
+	}
+
+	return -1;
+}
+
+static void do_enabled_lanes_reset(u32 serdes_id, u32 cfg,
+				   struct ccsr_serdes __iomem *serdes_base,
+				   bool cmplt)
+{
+	int i, pos;
+	u32 cfg_tmp;
+
+	pos = get_serdes_prctl_info_idx(serdes_id);
+	if (pos == -1) {
+		printf("invalid serdes_id %d\n", serdes_id);
+		return;
+	}
+
+	cfg_tmp = cfg & srds_prctl_info[pos].mask;
+	cfg_tmp >>= srds_prctl_info[pos].shift;
+
+	for (i = 0; i < 4 && cfg_tmp & (0xf << (3 - i)); i++) {
+		if (cmplt)
+			setbits_le32(&serdes_base->lane[i].gcr0,
+				     LNAGCR0_RT_RSTB);
+		else
+			clrbits_le32(&serdes_base->lane[i].gcr0,
+				     LNAGCR0_RT_RSTB);
+	}
+}
+
+static void do_pll_reset(u32 cfg,
+			 struct ccsr_serdes __iomem *serdes_base)
+{
+	int i;
+
+	for (i = 0; i < 2 && !(cfg & (0x1 << (1 - i))); i++) {
+		clrbits_le32(&serdes_base->bank[i].rstctl,
+			     RSTCTL_RESET_MASK);
+		udelay(1);
+
+		setbits_le32(&serdes_base->bank[i].rstctl,
+			     RSTCTL_RSTREQ);
+	}
+	udelay(1);
+}
+
+static void do_rx_tx_cal_reset(struct ccsr_serdes __iomem *serdes_base)
+{
+	clrbits_le32(&serdes_base->srdstcalcr, TCALCR_CALRST_B);
+	clrbits_le32(&serdes_base->srdstcalcr, TCALCR_CALRST_B);
+}
+
+static void do_rx_tx_cal_reset_comp(u32 cfg, int i,
+				    struct ccsr_serdes __iomem *serdes_base)
+{
+	if (!(cfg == 0x3 && i == 1)) {
+		udelay(1);
+		setbits_le32(&serdes_base->srdstcalcr, TCALCR_CALRST_B);
+		setbits_le32(&serdes_base->srdstcalcr, TCALCR_CALRST_B);
+	}
+	udelay(1);
+}
+
+static void do_pll_reset_done(u32 cfg,
+			      struct ccsr_serdes __iomem *serdes_base)
+{
+	int i;
+	u32 reg = 0;
+
+	for (i = 0; i < 2; i++) {
+		reg = in_le32(&serdes_base->bank[i].pllcr0);
+		if (!(cfg & (0x1 << (1 - i))) && ((reg >> 23) & 0x1)) {
+			setbits_le32(&serdes_base->bank[i].rstctl,
+				     RSTCTL_RST_DONE);
+		}
+	}
+}
+
+static void do_serdes_enable(u32 cfg,
+			     struct ccsr_serdes __iomem *serdes_base)
+{
+	int i;
+
+	for (i = 0; i < 2 && !(cfg & (0x1 << (1 - i))); i++) {
+		setbits_le32(&serdes_base->bank[i].rstctl, RSTCTL_SDEN);
+		udelay(1);
+
+		setbits_le32(&serdes_base->bank[i].rstctl, RSTCTL_PLLRST_B);
+		udelay(1);
+		/* Take the Rx/Tx calibration out of reset */
+		do_rx_tx_cal_reset_comp(cfg, i, serdes_base);
+	}
+}
+
+static void do_pll_lock(u32 cfg,
+			struct ccsr_serdes __iomem *serdes_base)
+{
+	int i;
+	u32 reg = 0;
+
+	for (i = 0; i < 2 && !(cfg & (0x1 << (1 - i))); i++) {
+		/* if the PLL is not locked, set RST_ERR */
+		reg = in_le32(&serdes_base->bank[i].pllcr0);
+		if (!((reg >> 23) & 0x1)) {
+			setbits_le32(&serdes_base->bank[i].rstctl,
+				     RSTCTL_RSTERR);
+		} else {
+			udelay(1);
+			setbits_le32(&serdes_base->bank[i].rstctl,
+				     RSTCTL_SDRST_B);
+			udelay(1);
+		}
+	}
+}
+
+int setup_serdes_volt(u32 svdd)
+{
+	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+	struct ccsr_serdes __iomem *serdes1_base =
+			(void *)CONFIG_SYS_FSL_LSCH3_SERDES_ADDR;
+	u32 cfg_rcwsrds1 = gur_in32(&gur->rcwsr[FSL_CHASSIS3_SRDS1_REGSR - 1]);
+#ifdef CONFIG_SYS_FSL_SRDS_2
+	struct ccsr_serdes __iomem *serdes2_base =
+			(void *)(CONFIG_SYS_FSL_LSCH3_SERDES_ADDR + 0x10000);
+	u32 cfg_rcwsrds2 = gur_in32(&gur->rcwsr[FSL_CHASSIS3_SRDS2_REGSR - 1]);
+#endif
+#ifdef CONFIG_SYS_NXP_SRDS_3
+	struct ccsr_serdes __iomem *serdes3_base =
+			(void *)(CONFIG_SYS_FSL_LSCH3_SERDES_ADDR + 0x20000);
+	u32 cfg_rcwsrds3 = gur_in32(&gur->rcwsr[FSL_CHASSIS3_SRDS3_REGSR - 1]);
+#endif
+	u32 cfg_tmp;
+	int svdd_cur, svdd_tar;
+	int ret = 1;
+
+	/* Only support switch SVDD to 900mV */
+	if (svdd != 900)
+		return -EINVAL;
+
+	/* Scale up to the LTC resolution is 1/4096V */
+	svdd = (svdd * 4096) / 1000;
+
+	svdd_tar = svdd;
+	svdd_cur = get_serdes_volt();
+	if (svdd_cur < 0)
+		return -EINVAL;
+
+	debug("%s: current SVDD: %x; target SVDD: %x\n",
+	      __func__, svdd_cur, svdd_tar);
+	if (svdd_cur == svdd_tar)
+		return 0;
+
+	/* Put the all enabled lanes in reset */
+#ifdef CONFIG_SYS_FSL_SRDS_1
+	do_enabled_lanes_reset(1, cfg_rcwsrds1, serdes1_base, false);
+#endif
+
+#ifdef CONFIG_SYS_FSL_SRDS_2
+	do_enabled_lanes_reset(2, cfg_rcwsrds2, serdes2_base, false);
+#endif
+#ifdef CONFIG_SYS_NXP_SRDS_3
+	do_enabled_lanes_reset(3, cfg_rcwsrds3, serdes3_base, false);
+#endif
+
+	/* Put the all enabled PLL in reset */
+#ifdef CONFIG_SYS_FSL_SRDS_1
+	cfg_tmp = cfg_rcwsrds1 & 0x3;
+	do_pll_reset(cfg_tmp, serdes1_base);
+#endif
+
+#ifdef CONFIG_SYS_FSL_SRDS_2
+	cfg_tmp = cfg_rcwsrds1 & 0xC;
+	cfg_tmp >>= 2;
+	do_pll_reset(cfg_tmp, serdes2_base);
+#endif
+
+#ifdef CONFIG_SYS_NXP_SRDS_3
+	cfg_tmp = cfg_rcwsrds3 & 0x30;
+	cfg_tmp >>= 4;
+	do_pll_reset(cfg_tmp, serdes3_base);
+#endif
+
+	/* Put the Rx/Tx calibration into reset */
+#ifdef CONFIG_SYS_FSL_SRDS_1
+	do_rx_tx_cal_reset(serdes1_base);
+#endif
+
+#ifdef CONFIG_SYS_FSL_SRDS_2
+	do_rx_tx_cal_reset(serdes2_base);
+#endif
+
+#ifdef CONFIG_SYS_NXP_SRDS_3
+	do_rx_tx_cal_reset(serdes3_base);
+#endif
+
+	ret = set_serdes_volt(svdd);
+	if (ret < 0) {
+		printf("could not change SVDD\n");
+		ret = -1;
+	}
+
+	/* For each PLL that’s not disabled via RCW enable the SERDES */
+#ifdef CONFIG_SYS_FSL_SRDS_1
+	cfg_tmp = cfg_rcwsrds1 & 0x3;
+	do_serdes_enable(cfg_tmp, serdes1_base);
+#endif
+#ifdef CONFIG_SYS_FSL_SRDS_2
+	cfg_tmp = cfg_rcwsrds1 & 0xC;
+	cfg_tmp >>= 2;
+	do_serdes_enable(cfg_tmp, serdes2_base);
+#endif
+#ifdef CONFIG_SYS_NXP_SRDS_3
+	cfg_tmp = cfg_rcwsrds3 & 0x30;
+	cfg_tmp >>= 4;
+	do_serdes_enable(cfg_tmp, serdes3_base);
+#endif
+
+	/* Wait for at at least 625us, ensure the PLLs being reset are locked */
+	udelay(800);
+
+#ifdef CONFIG_SYS_FSL_SRDS_1
+	cfg_tmp = cfg_rcwsrds1 & 0x3;
+	do_pll_lock(cfg_tmp, serdes1_base);
+#endif
+
+#ifdef CONFIG_SYS_FSL_SRDS_2
+	cfg_tmp = cfg_rcwsrds1 & 0xC;
+	cfg_tmp >>= 2;
+	do_pll_lock(cfg_tmp, serdes2_base);
+#endif
+
+#ifdef CONFIG_SYS_NXP_SRDS_3
+	cfg_tmp = cfg_rcwsrds3 & 0x30;
+	cfg_tmp >>= 4;
+	do_pll_lock(cfg_tmp, serdes3_base);
+#endif
+
+	/* Take the all enabled lanes out of reset */
+#ifdef CONFIG_SYS_FSL_SRDS_1
+	do_enabled_lanes_reset(1, cfg_rcwsrds1, serdes1_base, true);
+#endif
+#ifdef CONFIG_SYS_FSL_SRDS_2
+	do_enabled_lanes_reset(2, cfg_rcwsrds2, serdes2_base, true);
+#endif
+
+#ifdef CONFIG_SYS_NXP_SRDS_3
+	do_enabled_lanes_reset(3, cfg_rcwsrds3, serdes3_base, true);
+#endif
+
+	/* For each PLL being reset, and achieved PLL lock set RST_DONE */
+#ifdef CONFIG_SYS_FSL_SRDS_1
+	cfg_tmp = cfg_rcwsrds1 & 0x3;
+	do_pll_reset_done(cfg_tmp, serdes1_base);
+#endif
+#ifdef CONFIG_SYS_FSL_SRDS_2
+	cfg_tmp = cfg_rcwsrds1 & 0xC;
+	cfg_tmp >>= 2;
+	do_pll_reset_done(cfg_tmp, serdes2_base);
+#endif
+
+#ifdef CONFIG_SYS_NXP_SRDS_3
+	cfg_tmp = cfg_rcwsrds3 & 0x30;
+	cfg_tmp >>= 4;
+	do_pll_reset_done(cfg_tmp, serdes3_base);
+#endif
+
+	return ret;
+}
+
+void fsl_serdes_init(void)
+{
+#if defined(CONFIG_FSL_MC_ENET) && !defined(CONFIG_SPL_BUILD)
+	int i , j;
+
+#if defined(CONFIG_ARCH_LX2160A) || defined(CONFIG_ARCH_LX2162A)
+	for (i = XFI1, j = 1; i <= XFI14; i++, j++)
+		xfi_dpmac[i] = j;
+
+	for (i = SGMII1, j = 1; i <= SGMII18; i++, j++)
+		sgmii_dpmac[i] = j;
+
+	for (i = _25GE1, j = 1; i <= _25GE10; i++, j++)
+		a25gaui_dpmac[i] = j;
+
+	for (i = _40GE1, j = 1; i <= _40GE2; i++, j++)
+		xlaui_dpmac[i] = j;
+
+	for (i = _50GE1, j = 1; i <= _50GE2; i++, j++)
+		caui2_dpmac[i] = j;
+
+	for (i = _100GE1, j = 1; i <= _100GE2; i++, j++)
+		caui4_dpmac[i] = j;
+#else
+	for (i = XFI1, j = 1; i <= XFI8; i++, j++)
+		xfi_dpmac[i] = j;
+
+	for (i = SGMII1, j = 1; i <= SGMII16; i++, j++)
+		sgmii_dpmac[i] = j;
+#endif
+#endif
+
+#ifdef CONFIG_SYS_FSL_SRDS_1
+	serdes_init(FSL_SRDS_1,
+		    CONFIG_SYS_FSL_LSCH3_SERDES_ADDR,
+		    FSL_CHASSIS3_SRDS1_REGSR,
+		    FSL_CHASSIS3_SRDS1_PRTCL_MASK,
+		    FSL_CHASSIS3_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_SRDS2_REGSR,
+		    FSL_CHASSIS3_SRDS2_PRTCL_MASK,
+		    FSL_CHASSIS3_SRDS2_PRTCL_SHIFT,
+		    serdes2_prtcl_map);
+#endif
+#ifdef CONFIG_SYS_NXP_SRDS_3
+	serdes_init(NXP_SRDS_3,
+		    CONFIG_SYS_FSL_LSCH3_SERDES_ADDR + NXP_SRDS_3 * 0x10000,
+		    FSL_CHASSIS3_SRDS3_REGSR,
+		    FSL_CHASSIS3_SRDS3_PRTCL_MASK,
+		    FSL_CHASSIS3_SRDS3_PRTCL_SHIFT,
+		    serdes3_prtcl_map);
+#endif
+}
+
+int serdes_set_env(int sd, int rcwsr, int sd_prctl_mask, int sd_prctl_shift)
+{
+	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+	char scfg[16], snum[16];
+	int cfgr = 0;
+	u32 cfg;
+
+	cfg = gur_in32(&gur->rcwsr[rcwsr - 1]) & sd_prctl_mask;
+	cfg >>= sd_prctl_shift;
+	cfg = serdes_get_number(sd, cfg);
+
+#if defined(SRDS_BITS_PER_LANE)
+	/*
+	 * reverse lanes, lane 0 should be printed first so it must be moved to
+	 * high order bits.
+	 * For example bb58 should read 85bb, lane 0 being protocol 8.
+	 * This only applies to SoCs that define SRDS_BITS_PER_LANE and have
+	 * independent per-lane protocol configuration, at this time LS1028A and
+	 * LS1088A. LS2 and LX2 SoCs encode the full protocol mix across all
+	 * lanes as a single value.
+	 */
+	for (int i = 0; i < SRDS_MAX_LANES; i++) {
+		int tmp;
+
+		tmp = cfg >> (i * SRDS_BITS_PER_LANE);
+		tmp &= GENMASK(SRDS_BITS_PER_LANE - 1, 0);
+		tmp <<= (SRDS_MAX_LANES - i - 1) * SRDS_BITS_PER_LANE;
+		cfgr |= tmp;
+	}
+#endif /* SRDS_BITS_PER_LANE */
+
+	snprintf(snum, 16, "serdes%d", sd);
+	snprintf(scfg, 16, "%x", cfgr);
+	env_set(snum, scfg);
+
+	return 0;
+}
+
+int serdes_misc_init(void)
+{
+#ifdef CONFIG_SYS_FSL_SRDS_1
+	serdes_set_env(FSL_SRDS_1, FSL_CHASSIS3_SRDS1_REGSR,
+		       FSL_CHASSIS3_SRDS1_PRTCL_MASK,
+		       FSL_CHASSIS3_SRDS1_PRTCL_SHIFT);
+#endif
+#ifdef CONFIG_SYS_FSL_SRDS_2
+	serdes_set_env(FSL_SRDS_2, FSL_CHASSIS3_SRDS2_REGSR,
+		       FSL_CHASSIS3_SRDS2_PRTCL_MASK,
+		       FSL_CHASSIS3_SRDS2_PRTCL_SHIFT);
+#endif
+#ifdef CONFIG_SYS_NXP_SRDS_3
+	serdes_set_env(NXP_SRDS_3, FSL_CHASSIS3_SRDS3_REGSR,
+		       FSL_CHASSIS3_SRDS3_PRTCL_MASK,
+		       FSL_CHASSIS3_SRDS3_PRTCL_SHIFT);
+#endif
+
+	return 0;
+}