[PATCH v2 17/52] mips: octeon: Add cvmx-helper-pki.c

[Stefan Roese <sr@denx.de>]

From: Aaron Williams <awilliams@marvell.com>

Import cvmx-helper-pki.c from 2013 U-Boot. It will be used by the later
added drivers to support networking on the MIPS Octeon II / III
platforms.

Signed-off-by: Aaron Williams <awilliams@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>
---
 arch/mips/mach-octeon/cvmx-helper-pki.c | 549 ++++++++++++++++++++++++
 1 file changed, 549 insertions(+)
 create mode 100644 arch/mips/mach-octeon/cvmx-helper-pki.c

diff --git a/arch/mips/mach-octeon/cvmx-helper-pki.c b/arch/mips/mach-octeon/cvmx-helper-pki.c
new file mode 100644
index 000000000000..51fa4fb5f054
--- /dev/null
+++ b/arch/mips/mach-octeon/cvmx-helper-pki.c
@@ -0,0 +1,549 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018-2022 Marvell International Ltd.
+ *
+ * PKI helper functions.
+ */
+
+#include <time.h>
+#include <log.h>
+#include <linux/delay.h>
+
+#include <mach/cvmx-regs.h>
+#include <mach/cvmx-csr.h>
+#include <mach/cvmx-bootmem.h>
+#include <mach/octeon-model.h>
+#include <mach/cvmx-fuse.h>
+#include <mach/octeon-feature.h>
+#include <mach/cvmx-qlm.h>
+#include <mach/octeon_qlm.h>
+#include <mach/cvmx-pcie.h>
+#include <mach/cvmx-coremask.h>
+
+#include <mach/cvmx-agl-defs.h>
+#include <mach/cvmx-bgxx-defs.h>
+#include <mach/cvmx-ciu-defs.h>
+#include <mach/cvmx-gmxx-defs.h>
+#include <mach/cvmx-gserx-defs.h>
+#include <mach/cvmx-ilk-defs.h>
+#include <mach/cvmx-ipd-defs.h>
+#include <mach/cvmx-pexp-defs.h>
+#include <mach/cvmx-pcsx-defs.h>
+#include <mach/cvmx-pcsxx-defs.h>
+#include <mach/cvmx-pki-defs.h>
+#include <mach/cvmx-pko-defs.h>
+#include <mach/cvmx-sli-defs.h>
+#include <mach/cvmx-xcv-defs.h>
+
+#include <mach/cvmx-hwpko.h>
+#include <mach/cvmx-ilk.h>
+#include <mach/cvmx-pki.h>
+
+#include <mach/cvmx-helper.h>
+#include <mach/cvmx-helper-board.h>
+#include <mach/cvmx-helper-cfg.h>
+#include <mach/cvmx-helper-pki.h>
+
+#include <mach/cvmx-global-resources.h>
+#include <mach/cvmx-pko-internal-ports-range.h>
+#include <mach/cvmx-ilk.h>
+#include <mach/cvmx-pip.h>
+
+static int pki_helper_debug;
+
+bool cvmx_pki_dflt_init[CVMX_MAX_NODES] = { [0 ... CVMX_MAX_NODES - 1] = 1 };
+
+static bool cvmx_pki_dflt_bp_en[CVMX_MAX_NODES] = { [0 ... CVMX_MAX_NODES - 1] =
+							    true };
+static struct cvmx_pki_cluster_grp_config pki_dflt_clgrp[CVMX_MAX_NODES] = {
+	{ 0, 0xf },
+	{ 0, 0xf }
+};
+
+struct cvmx_pki_pool_config pki_dflt_pool[CVMX_MAX_NODES] = {
+	[0 ... CVMX_MAX_NODES -
+	 1] = { .pool_num = -1, .buffer_size = 2048, .buffer_count = 0 }
+};
+
+struct cvmx_pki_aura_config pki_dflt_aura[CVMX_MAX_NODES] = {
+	[0 ... CVMX_MAX_NODES -
+	 1] = { .aura_num = 0, .pool_num = -1, .buffer_count = 0 }
+};
+
+struct cvmx_pki_style_config pki_dflt_style[CVMX_MAX_NODES] = {
+	[0 ... CVMX_MAX_NODES - 1] = { .parm_cfg = { .lenerr_en = 1,
+						     .maxerr_en = 1,
+						     .minerr_en = 1,
+						     .fcs_strip = 1,
+						     .fcs_chk = 1,
+						     .first_skip = 40,
+						     .mbuff_size = 2048 } }
+};
+
+struct cvmx_pki_sso_grp_config pki_dflt_sso_grp[CVMX_MAX_NODES];
+struct cvmx_pki_qpg_config pki_dflt_qpg[CVMX_MAX_NODES];
+struct cvmx_pki_pkind_config pki_dflt_pkind[CVMX_MAX_NODES];
+u64 pkind_style_map[CVMX_MAX_NODES][CVMX_PKI_NUM_PKIND] = {
+	[0 ... CVMX_MAX_NODES -
+	 1] = { 0,  1,	2,  3,	4,  5,	6,  7,	8,  9,	10, 11, 12, 13, 14, 15,
+		16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
+		32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
+		48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63 }
+};
+
+/* To store the qos watcher values before they are written to pcam when watcher
+ * is enabled. There is no cvmx-pip.c file exist so it ended up here
+ */
+struct cvmx_pki_legacy_qos_watcher qos_watcher[8];
+
+/** @INTERNAL
+ * This function setsup default ltype map
+ * @param node    node number
+ */
+void __cvmx_helper_pki_set_dflt_ltype_map(int node)
+{
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_NONE,
+				 CVMX_PKI_BELTYPE_NONE);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_ENET,
+				 CVMX_PKI_BELTYPE_MISC);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_VLAN,
+				 CVMX_PKI_BELTYPE_MISC);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_SNAP_PAYLD,
+				 CVMX_PKI_BELTYPE_MISC);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_ARP,
+				 CVMX_PKI_BELTYPE_MISC);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_RARP,
+				 CVMX_PKI_BELTYPE_MISC);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_IP4,
+				 CVMX_PKI_BELTYPE_IP4);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_IP4_OPT,
+				 CVMX_PKI_BELTYPE_IP4);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_IP6,
+				 CVMX_PKI_BELTYPE_IP6);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_IP6_OPT,
+				 CVMX_PKI_BELTYPE_IP6);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_IPSEC_ESP,
+				 CVMX_PKI_BELTYPE_MISC);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_IPFRAG,
+				 CVMX_PKI_BELTYPE_MISC);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_IPCOMP,
+				 CVMX_PKI_BELTYPE_MISC);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_TCP,
+				 CVMX_PKI_BELTYPE_TCP);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_UDP,
+				 CVMX_PKI_BELTYPE_UDP);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_SCTP,
+				 CVMX_PKI_BELTYPE_SCTP);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_UDP_VXLAN,
+				 CVMX_PKI_BELTYPE_UDP);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_GRE,
+				 CVMX_PKI_BELTYPE_MISC);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_NVGRE,
+				 CVMX_PKI_BELTYPE_MISC);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_GTP,
+				 CVMX_PKI_BELTYPE_MISC);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_SW28,
+				 CVMX_PKI_BELTYPE_MISC);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_SW29,
+				 CVMX_PKI_BELTYPE_MISC);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_SW30,
+				 CVMX_PKI_BELTYPE_MISC);
+	cvmx_pki_write_ltype_map(node, CVMX_PKI_LTYPE_E_SW31,
+				 CVMX_PKI_BELTYPE_MISC);
+}
+
+/** @INTERNAL
+ * This function installs the default VLAN entries to identify
+ * the VLAN and set WQE[vv], WQE[vs] if VLAN is found. In 78XX
+ * hardware (PKI) is not hardwired to recognize any 802.1Q VLAN
+ * Ethertypes
+ *
+ * @param node    node number
+ */
+int __cvmx_helper_pki_install_dflt_vlan(int node)
+{
+	struct cvmx_pki_pcam_input pcam_input;
+	struct cvmx_pki_pcam_action pcam_action;
+	enum cvmx_pki_term field;
+	int index;
+	int bank;
+	u64 cl_mask = CVMX_PKI_CLUSTER_ALL;
+
+	memset(&pcam_input, 0, sizeof(pcam_input));
+	memset(&pcam_action, 0, sizeof(pcam_action));
+
+	if (OCTEON_IS_MODEL(OCTEON_CN78XX_PASS1_X)) {
+		/* PKI-20858 */
+		int i;
+
+		for (i = 0; i < 4; i++) {
+			union cvmx_pki_clx_ecc_ctl ecc_ctl;
+
+			ecc_ctl.u64 =
+				csr_rd_node(node, CVMX_PKI_CLX_ECC_CTL(i));
+			ecc_ctl.s.pcam_en = 0;
+			ecc_ctl.s.pcam0_cdis = 1;
+			ecc_ctl.s.pcam1_cdis = 1;
+			csr_wr_node(node, CVMX_PKI_CLX_ECC_CTL(i), ecc_ctl.u64);
+		}
+	}
+
+	for (field = CVMX_PKI_PCAM_TERM_ETHTYPE0;
+	     field < CVMX_PKI_PCAM_TERM_ETHTYPE2; field++) {
+		bank = field & 0x01;
+
+		index = cvmx_pki_pcam_entry_alloc(
+			node, CVMX_PKI_FIND_AVAL_ENTRY, bank, cl_mask);
+		if (index < 0) {
+			debug("ERROR: Allocating pcam entry node=%d bank=%d\n",
+			      node, bank);
+			return -1;
+		}
+		pcam_input.style = 0;
+		pcam_input.style_mask = 0;
+		pcam_input.field = field;
+		pcam_input.field_mask = 0xfd;
+		pcam_input.data = 0x81000000;
+		pcam_input.data_mask = 0xffff0000;
+		pcam_action.parse_mode_chg = CVMX_PKI_PARSE_NO_CHG;
+		pcam_action.layer_type_set = CVMX_PKI_LTYPE_E_VLAN;
+		pcam_action.style_add = 0;
+		pcam_action.pointer_advance = 4;
+		cvmx_pki_pcam_write_entry(
+			node, index, cl_mask, pcam_input,
+			pcam_action); /*cluster_mask in pass2*/
+
+		index = cvmx_pki_pcam_entry_alloc(
+			node, CVMX_PKI_FIND_AVAL_ENTRY, bank, cl_mask);
+		if (index < 0) {
+			debug("ERROR: Allocating pcam entry node=%d bank=%d\n",
+			      node, bank);
+			return -1;
+		}
+		pcam_input.data = 0x88a80000;
+		cvmx_pki_pcam_write_entry(node, index, cl_mask, pcam_input,
+					  pcam_action);
+
+		index = cvmx_pki_pcam_entry_alloc(
+			node, CVMX_PKI_FIND_AVAL_ENTRY, bank, cl_mask);
+		if (index < 0) {
+			debug("ERROR: Allocating pcam entry node=%d bank=%d\n",
+			      node, bank);
+			return -1;
+		}
+		pcam_input.data = 0x92000000;
+		cvmx_pki_pcam_write_entry(
+			node, index, cl_mask, pcam_input,
+			pcam_action); /* cluster_mask in pass2*/
+
+		index = cvmx_pki_pcam_entry_alloc(
+			node, CVMX_PKI_FIND_AVAL_ENTRY, bank, cl_mask);
+		if (index < 0) {
+			debug("ERROR: Allocating pcam entry node=%d bank=%d\n",
+			      node, bank);
+			return -1;
+		}
+		pcam_input.data = 0x91000000;
+		cvmx_pki_pcam_write_entry(node, index, cl_mask, pcam_input,
+					  pcam_action);
+	}
+	return 0;
+}
+
+static int __cvmx_helper_setup_pki_cluster_groups(int node)
+{
+	u64 cl_mask;
+	int cl_group;
+
+	cl_group =
+		cvmx_pki_cluster_grp_alloc(node, pki_dflt_clgrp[node].grp_num);
+	if (cl_group == CVMX_RESOURCE_ALLOC_FAILED)
+		return -1;
+	else if (cl_group == CVMX_RESOURCE_ALREADY_RESERVED) {
+		if (pki_dflt_clgrp[node].grp_num == -1)
+			return -1;
+		else
+			return 0; /* cluster already configured, share it */
+	}
+	cl_mask = pki_dflt_clgrp[node].cluster_mask;
+	if (pki_helper_debug)
+		debug("pki-helper: setup pki cluster grp %d with cl_mask 0x%llx\n",
+		      (int)cl_group, (unsigned long long)cl_mask);
+	cvmx_pki_attach_cluster_to_group(node, cl_group, cl_mask);
+	return 0;
+}
+
+/**
+ * This function sets up pools/auras to be used by PKI
+ * @param node    node number
+ */
+static int __cvmx_helper_pki_setup_fpa_pools(int node)
+{
+	u64 buffer_count;
+	u64 buffer_size;
+
+	if (__cvmx_fpa3_aura_valid(pki_dflt_aura[node].aura))
+		return 0; /* aura already configured, share it */
+
+	buffer_count = pki_dflt_pool[node].buffer_count;
+	buffer_size = pki_dflt_pool[node].buffer_size;
+
+	if (buffer_count != 0) {
+		pki_dflt_pool[node].pool = cvmx_fpa3_setup_fill_pool(
+			node, pki_dflt_pool[node].pool_num, "PKI POOL DFLT",
+			buffer_size, buffer_count, NULL);
+		if (!__cvmx_fpa3_pool_valid(pki_dflt_pool[node].pool)) {
+			cvmx_printf("ERROR: %s: Failed to allocate pool %d\n",
+				    __func__, pki_dflt_pool[node].pool_num);
+			return -1;
+		}
+		pki_dflt_pool[node].pool_num = pki_dflt_pool[node].pool.lpool;
+
+		if (pki_helper_debug)
+			debug("%s pool %d with buffer size %d cnt %d\n",
+			      __func__, pki_dflt_pool[node].pool_num,
+			      (int)buffer_size, (int)buffer_count);
+
+		pki_dflt_aura[node].pool_num = pki_dflt_pool[node].pool_num;
+		pki_dflt_aura[node].pool = pki_dflt_pool[node].pool;
+	}
+
+	buffer_count = pki_dflt_aura[node].buffer_count;
+
+	if (buffer_count != 0) {
+		pki_dflt_aura[node].aura = cvmx_fpa3_set_aura_for_pool(
+			pki_dflt_aura[node].pool, pki_dflt_aura[node].aura_num,
+			"PKI DFLT AURA", buffer_size, buffer_count);
+
+		if (!__cvmx_fpa3_aura_valid(pki_dflt_aura[node].aura)) {
+			debug("ERROR: %sL Failed to allocate aura %d\n",
+			      __func__, pki_dflt_aura[node].aura_num);
+			return -1;
+		}
+	}
+	return 0;
+}
+
+static int __cvmx_helper_setup_pki_qpg_table(int node)
+{
+	int offset;
+
+	offset = cvmx_pki_qpg_entry_alloc(node, pki_dflt_qpg[node].qpg_base, 1);
+	if (offset == CVMX_RESOURCE_ALLOC_FAILED)
+		return -1;
+	else if (offset == CVMX_RESOURCE_ALREADY_RESERVED)
+		return 0; /* share the qpg table entry */
+	if (pki_helper_debug)
+		debug("pki-helper: set qpg entry at offset %d with port add %d aura %d grp_ok %d grp_bad %d\n",
+		      offset, pki_dflt_qpg[node].port_add,
+		      pki_dflt_qpg[node].aura_num, pki_dflt_qpg[node].grp_ok,
+		      pki_dflt_qpg[node].grp_bad);
+	cvmx_pki_write_qpg_entry(node, offset, &pki_dflt_qpg[node]);
+	return 0;
+}
+
+int __cvmx_helper_pki_port_setup(int node, int ipd_port)
+{
+	int xiface, index;
+	int pknd, style_num;
+	int rs;
+	struct cvmx_pki_pkind_config pkind_cfg;
+
+	if (!cvmx_pki_dflt_init[node])
+		return 0;
+	xiface = cvmx_helper_get_interface_num(ipd_port);
+	index = cvmx_helper_get_interface_index_num(ipd_port);
+
+	pknd = cvmx_helper_get_pknd(xiface, index);
+	style_num = pkind_style_map[node][pknd];
+
+	/* try to reserve the style, if it is not configured already, reserve
+	and configure it */
+	rs = cvmx_pki_style_alloc(node, style_num);
+	if (rs < 0) {
+		if (rs == CVMX_RESOURCE_ALLOC_FAILED)
+			return -1;
+	} else {
+		if (pki_helper_debug)
+			debug("pki-helper: set style %d with default parameters\n",
+			      style_num);
+		pkind_style_map[node][pknd] = style_num;
+		/* configure style with default parameters */
+		cvmx_pki_write_style_config(node, style_num,
+					    CVMX_PKI_CLUSTER_ALL,
+					    &pki_dflt_style[node]);
+	}
+	if (pki_helper_debug)
+		debug("pki-helper: set pkind %d with initial style %d\n", pknd,
+		      style_num);
+	/* write pkind configuration */
+	pkind_cfg = pki_dflt_pkind[node];
+	pkind_cfg.initial_style = style_num;
+	cvmx_pki_write_pkind_config(node, pknd, &pkind_cfg);
+	return 0;
+}
+
+int __cvmx_helper_pki_global_setup(int node)
+{
+	__cvmx_helper_pki_set_dflt_ltype_map(node);
+	if (!cvmx_pki_dflt_init[node])
+		return 0;
+	/* Setup the packet pools*/
+	__cvmx_helper_pki_setup_fpa_pools(node);
+	/*set up default cluster*/
+	__cvmx_helper_setup_pki_cluster_groups(node);
+	//__cvmx_helper_pki_setup_sso_groups(node);
+	__cvmx_helper_setup_pki_qpg_table(node);
+	/*
+	 * errata PKI-19103 backward compat has only 1 aura
+	 * no head line blocking
+	 */
+	if (OCTEON_IS_MODEL(OCTEON_CN78XX_PASS1_X)) {
+		cvmx_pki_buf_ctl_t buf_ctl;
+
+		buf_ctl.u64 = csr_rd_node(node, CVMX_PKI_BUF_CTL);
+		buf_ctl.s.fpa_wait = 1;
+		csr_wr_node(node, CVMX_PKI_BUF_CTL, buf_ctl.u64);
+	}
+	return 0;
+}
+
+/**
+ * This function Enabled the PKI hardware to
+ * start accepting/processing packets.
+ *
+ * @param node    node number
+ */
+void cvmx_helper_pki_enable(int node)
+{
+	if (pki_helper_debug)
+		debug("enable PKI on node %d\n", node);
+	__cvmx_helper_pki_install_dflt_vlan(node);
+	cvmx_pki_setup_clusters(node);
+	if (cvmx_pki_dflt_bp_en[node])
+		cvmx_pki_enable_backpressure(node);
+	cvmx_pki_parse_enable(node, 0);
+	cvmx_pki_enable(node);
+}
+
+/**
+ * This function setups the qos table by allocating qpg entry and writing
+ * the provided parameters to that entry (offset).
+ * @param node	  node number.
+ * @param qpg_cfg       pointer to struct containing qpg configuration
+ */
+int cvmx_helper_pki_set_qpg_entry(int node, struct cvmx_pki_qpg_config *qpg_cfg)
+{
+	int offset;
+
+	offset = cvmx_pki_qpg_entry_alloc(node, qpg_cfg->qpg_base, 1);
+	if (pki_helper_debug)
+		debug("pki-helper:set qpg entry at offset %d\n", offset);
+	if (offset == CVMX_RESOURCE_ALREADY_RESERVED) {
+		debug("INFO:setup_qpg_table: offset %d already reserved\n",
+		      qpg_cfg->qpg_base);
+		return CVMX_RESOURCE_ALREADY_RESERVED;
+	} else if (offset == CVMX_RESOURCE_ALLOC_FAILED) {
+		debug("ERROR:setup_qpg_table: no more entries available\n");
+		return CVMX_RESOURCE_ALLOC_FAILED;
+	}
+	qpg_cfg->qpg_base = offset;
+	cvmx_pki_write_qpg_entry(node, offset, qpg_cfg);
+	return offset;
+}
+
+/**
+ * This function gets all the PKI parameters related to that
+ * particular port from hardware.
+ * @param xipd_port	xipd_port port number with node to get parameter of
+ * @param port_cfg	pointer to structure where to store read parameters
+ */
+void cvmx_pki_get_port_config(int xipd_port,
+			      struct cvmx_pki_port_config *port_cfg)
+{
+	int xiface, index, pknd;
+	int style, cl_mask;
+	cvmx_pki_icgx_cfg_t pki_cl_msk;
+	struct cvmx_xport xp = cvmx_helper_ipd_port_to_xport(xipd_port);
+
+	/* get the pkind used by this ipd port */
+	xiface = cvmx_helper_get_interface_num(xipd_port);
+	index = cvmx_helper_get_interface_index_num(xipd_port);
+	pknd = cvmx_helper_get_pknd(xiface, index);
+
+	cvmx_pki_read_pkind_config(xp.node, pknd, &port_cfg->pkind_cfg);
+	style = port_cfg->pkind_cfg.initial_style;
+	pki_cl_msk.u64 = csr_rd_node(
+		xp.node, CVMX_PKI_ICGX_CFG(port_cfg->pkind_cfg.cluster_grp));
+	cl_mask = pki_cl_msk.s.clusters;
+	cvmx_pki_read_style_config(xp.node, style, cl_mask,
+				   &port_cfg->style_cfg);
+}
+
+/**
+ * This function sets all the PKI parameters related to that
+ * particular port in hardware.
+ * @param xipd_port	ipd port number with node to get parameter of
+ * @param port_cfg	pointer to structure containing port parameters
+ */
+void cvmx_pki_set_port_config(int xipd_port,
+			      struct cvmx_pki_port_config *port_cfg)
+{
+	int xiface, index, pknd;
+	int style, cl_mask;
+	cvmx_pki_icgx_cfg_t pki_cl_msk;
+	struct cvmx_xport xp = cvmx_helper_ipd_port_to_xport(xipd_port);
+
+	/* get the pkind used by this ipd port */
+	xiface = cvmx_helper_get_interface_num(xipd_port);
+	index = cvmx_helper_get_interface_index_num(xipd_port);
+	pknd = cvmx_helper_get_pknd(xiface, index);
+
+	if (cvmx_pki_write_pkind_config(xp.node, pknd, &port_cfg->pkind_cfg))
+		return;
+	style = port_cfg->pkind_cfg.initial_style;
+	pki_cl_msk.u64 = csr_rd_node(
+		xp.node, CVMX_PKI_ICGX_CFG(port_cfg->pkind_cfg.cluster_grp));
+	cl_mask = pki_cl_msk.s.clusters;
+	cvmx_pki_write_style_config(xp.node, style, cl_mask,
+				    &port_cfg->style_cfg);
+}
+
+/**
+ * This function sets up all th eports of particular interface
+ * for chosen fcs mode. (only use for backward compatibility).
+ * New application can control it via init_interface calls.
+ * @param node		node number.
+ * @param interface	interface number.
+ * @param nports	number of ports
+ * @param has_fcs	1 -- enable fcs check and fcs strip.
+ *			0 -- disable fcs check.
+ */
+void cvmx_helper_pki_set_fcs_op(int node, int interface, int nports,
+				int has_fcs)
+{
+	int xiface, index;
+	int pknd;
+	unsigned int cluster = 0;
+	cvmx_pki_clx_pkindx_cfg_t pkind_cfg;
+
+	xiface = cvmx_helper_node_interface_to_xiface(node, interface);
+	for (index = 0; index < nports; index++) {
+		pknd = cvmx_helper_get_pknd(xiface, index);
+		while (cluster < CVMX_PKI_NUM_CLUSTER) {
+			/*find the cluster in use pass2*/
+			pkind_cfg.u64 = csr_rd_node(
+				node, CVMX_PKI_CLX_PKINDX_CFG(pknd, cluster));
+			pkind_cfg.s.fcs_pres = has_fcs;
+			csr_wr_node(node,
+				    CVMX_PKI_CLX_PKINDX_CFG(pknd, cluster),
+				    pkind_cfg.u64);
+			cluster++;
+		}
+		/* make sure fcs_strip and fcs_check is also enable/disable
+		 * for the style used by that port
+		 */
+		cvmx_pki_endis_fcs_check(node, pknd, has_fcs, has_fcs);
+		cluster = 0;
+	}
+}
-- 
2.35.1