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path: root/drivers/net/ethernet/microchip/sparx5/sparx5_main.c
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Diffstat (limited to 'drivers/net/ethernet/microchip/sparx5/sparx5_main.c')
-rw-r--r--drivers/net/ethernet/microchip/sparx5/sparx5_main.c853
1 files changed, 853 insertions, 0 deletions
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_main.c b/drivers/net/ethernet/microchip/sparx5/sparx5_main.c
new file mode 100644
index 000000000000..f666133a15de
--- /dev/null
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_main.c
@@ -0,0 +1,853 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Microchip Sparx5 Switch driver
+ *
+ * Copyright (c) 2021 Microchip Technology Inc. and its subsidiaries.
+ *
+ * The Sparx5 Chip Register Model can be browsed at this location:
+ * https://github.com/microchip-ung/sparx-5_reginfo
+ */
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/netdevice.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/of.h>
+#include <linux/of_net.h>
+#include <linux/of_mdio.h>
+#include <net/switchdev.h>
+#include <linux/etherdevice.h>
+#include <linux/io.h>
+#include <linux/printk.h>
+#include <linux/iopoll.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+#include <linux/types.h>
+#include <linux/reset.h>
+
+#include "sparx5_main_regs.h"
+#include "sparx5_main.h"
+#include "sparx5_port.h"
+
+#define QLIM_WM(fraction) \
+ ((SPX5_BUFFER_MEMORY / SPX5_BUFFER_CELL_SZ - 100) * (fraction) / 100)
+#define IO_RANGES 3
+
+struct initial_port_config {
+ u32 portno;
+ struct device_node *node;
+ struct sparx5_port_config conf;
+ struct phy *serdes;
+};
+
+struct sparx5_ram_config {
+ void __iomem *init_reg;
+ u32 init_val;
+};
+
+struct sparx5_main_io_resource {
+ enum sparx5_target id;
+ phys_addr_t offset;
+ int range;
+};
+
+static const struct sparx5_main_io_resource sparx5_main_iomap[] = {
+ { TARGET_CPU, 0, 0 }, /* 0x600000000 */
+ { TARGET_FDMA, 0x80000, 0 }, /* 0x600080000 */
+ { TARGET_PCEP, 0x400000, 0 }, /* 0x600400000 */
+ { TARGET_DEV2G5, 0x10004000, 1 }, /* 0x610004000 */
+ { TARGET_DEV5G, 0x10008000, 1 }, /* 0x610008000 */
+ { TARGET_PCS5G_BR, 0x1000c000, 1 }, /* 0x61000c000 */
+ { TARGET_DEV2G5 + 1, 0x10010000, 1 }, /* 0x610010000 */
+ { TARGET_DEV5G + 1, 0x10014000, 1 }, /* 0x610014000 */
+ { TARGET_PCS5G_BR + 1, 0x10018000, 1 }, /* 0x610018000 */
+ { TARGET_DEV2G5 + 2, 0x1001c000, 1 }, /* 0x61001c000 */
+ { TARGET_DEV5G + 2, 0x10020000, 1 }, /* 0x610020000 */
+ { TARGET_PCS5G_BR + 2, 0x10024000, 1 }, /* 0x610024000 */
+ { TARGET_DEV2G5 + 6, 0x10028000, 1 }, /* 0x610028000 */
+ { TARGET_DEV5G + 6, 0x1002c000, 1 }, /* 0x61002c000 */
+ { TARGET_PCS5G_BR + 6, 0x10030000, 1 }, /* 0x610030000 */
+ { TARGET_DEV2G5 + 7, 0x10034000, 1 }, /* 0x610034000 */
+ { TARGET_DEV5G + 7, 0x10038000, 1 }, /* 0x610038000 */
+ { TARGET_PCS5G_BR + 7, 0x1003c000, 1 }, /* 0x61003c000 */
+ { TARGET_DEV2G5 + 8, 0x10040000, 1 }, /* 0x610040000 */
+ { TARGET_DEV5G + 8, 0x10044000, 1 }, /* 0x610044000 */
+ { TARGET_PCS5G_BR + 8, 0x10048000, 1 }, /* 0x610048000 */
+ { TARGET_DEV2G5 + 9, 0x1004c000, 1 }, /* 0x61004c000 */
+ { TARGET_DEV5G + 9, 0x10050000, 1 }, /* 0x610050000 */
+ { TARGET_PCS5G_BR + 9, 0x10054000, 1 }, /* 0x610054000 */
+ { TARGET_DEV2G5 + 10, 0x10058000, 1 }, /* 0x610058000 */
+ { TARGET_DEV5G + 10, 0x1005c000, 1 }, /* 0x61005c000 */
+ { TARGET_PCS5G_BR + 10, 0x10060000, 1 }, /* 0x610060000 */
+ { TARGET_DEV2G5 + 11, 0x10064000, 1 }, /* 0x610064000 */
+ { TARGET_DEV5G + 11, 0x10068000, 1 }, /* 0x610068000 */
+ { TARGET_PCS5G_BR + 11, 0x1006c000, 1 }, /* 0x61006c000 */
+ { TARGET_DEV2G5 + 12, 0x10070000, 1 }, /* 0x610070000 */
+ { TARGET_DEV10G, 0x10074000, 1 }, /* 0x610074000 */
+ { TARGET_PCS10G_BR, 0x10078000, 1 }, /* 0x610078000 */
+ { TARGET_DEV2G5 + 14, 0x1007c000, 1 }, /* 0x61007c000 */
+ { TARGET_DEV10G + 2, 0x10080000, 1 }, /* 0x610080000 */
+ { TARGET_PCS10G_BR + 2, 0x10084000, 1 }, /* 0x610084000 */
+ { TARGET_DEV2G5 + 15, 0x10088000, 1 }, /* 0x610088000 */
+ { TARGET_DEV10G + 3, 0x1008c000, 1 }, /* 0x61008c000 */
+ { TARGET_PCS10G_BR + 3, 0x10090000, 1 }, /* 0x610090000 */
+ { TARGET_DEV2G5 + 16, 0x10094000, 1 }, /* 0x610094000 */
+ { TARGET_DEV2G5 + 17, 0x10098000, 1 }, /* 0x610098000 */
+ { TARGET_DEV2G5 + 18, 0x1009c000, 1 }, /* 0x61009c000 */
+ { TARGET_DEV2G5 + 19, 0x100a0000, 1 }, /* 0x6100a0000 */
+ { TARGET_DEV2G5 + 20, 0x100a4000, 1 }, /* 0x6100a4000 */
+ { TARGET_DEV2G5 + 21, 0x100a8000, 1 }, /* 0x6100a8000 */
+ { TARGET_DEV2G5 + 22, 0x100ac000, 1 }, /* 0x6100ac000 */
+ { TARGET_DEV2G5 + 23, 0x100b0000, 1 }, /* 0x6100b0000 */
+ { TARGET_DEV2G5 + 32, 0x100b4000, 1 }, /* 0x6100b4000 */
+ { TARGET_DEV2G5 + 33, 0x100b8000, 1 }, /* 0x6100b8000 */
+ { TARGET_DEV2G5 + 34, 0x100bc000, 1 }, /* 0x6100bc000 */
+ { TARGET_DEV2G5 + 35, 0x100c0000, 1 }, /* 0x6100c0000 */
+ { TARGET_DEV2G5 + 36, 0x100c4000, 1 }, /* 0x6100c4000 */
+ { TARGET_DEV2G5 + 37, 0x100c8000, 1 }, /* 0x6100c8000 */
+ { TARGET_DEV2G5 + 38, 0x100cc000, 1 }, /* 0x6100cc000 */
+ { TARGET_DEV2G5 + 39, 0x100d0000, 1 }, /* 0x6100d0000 */
+ { TARGET_DEV2G5 + 40, 0x100d4000, 1 }, /* 0x6100d4000 */
+ { TARGET_DEV2G5 + 41, 0x100d8000, 1 }, /* 0x6100d8000 */
+ { TARGET_DEV2G5 + 42, 0x100dc000, 1 }, /* 0x6100dc000 */
+ { TARGET_DEV2G5 + 43, 0x100e0000, 1 }, /* 0x6100e0000 */
+ { TARGET_DEV2G5 + 44, 0x100e4000, 1 }, /* 0x6100e4000 */
+ { TARGET_DEV2G5 + 45, 0x100e8000, 1 }, /* 0x6100e8000 */
+ { TARGET_DEV2G5 + 46, 0x100ec000, 1 }, /* 0x6100ec000 */
+ { TARGET_DEV2G5 + 47, 0x100f0000, 1 }, /* 0x6100f0000 */
+ { TARGET_DEV2G5 + 57, 0x100f4000, 1 }, /* 0x6100f4000 */
+ { TARGET_DEV25G + 1, 0x100f8000, 1 }, /* 0x6100f8000 */
+ { TARGET_PCS25G_BR + 1, 0x100fc000, 1 }, /* 0x6100fc000 */
+ { TARGET_DEV2G5 + 59, 0x10104000, 1 }, /* 0x610104000 */
+ { TARGET_DEV25G + 3, 0x10108000, 1 }, /* 0x610108000 */
+ { TARGET_PCS25G_BR + 3, 0x1010c000, 1 }, /* 0x61010c000 */
+ { TARGET_DEV2G5 + 60, 0x10114000, 1 }, /* 0x610114000 */
+ { TARGET_DEV25G + 4, 0x10118000, 1 }, /* 0x610118000 */
+ { TARGET_PCS25G_BR + 4, 0x1011c000, 1 }, /* 0x61011c000 */
+ { TARGET_DEV2G5 + 64, 0x10124000, 1 }, /* 0x610124000 */
+ { TARGET_DEV5G + 12, 0x10128000, 1 }, /* 0x610128000 */
+ { TARGET_PCS5G_BR + 12, 0x1012c000, 1 }, /* 0x61012c000 */
+ { TARGET_PORT_CONF, 0x10130000, 1 }, /* 0x610130000 */
+ { TARGET_DEV2G5 + 3, 0x10404000, 1 }, /* 0x610404000 */
+ { TARGET_DEV5G + 3, 0x10408000, 1 }, /* 0x610408000 */
+ { TARGET_PCS5G_BR + 3, 0x1040c000, 1 }, /* 0x61040c000 */
+ { TARGET_DEV2G5 + 4, 0x10410000, 1 }, /* 0x610410000 */
+ { TARGET_DEV5G + 4, 0x10414000, 1 }, /* 0x610414000 */
+ { TARGET_PCS5G_BR + 4, 0x10418000, 1 }, /* 0x610418000 */
+ { TARGET_DEV2G5 + 5, 0x1041c000, 1 }, /* 0x61041c000 */
+ { TARGET_DEV5G + 5, 0x10420000, 1 }, /* 0x610420000 */
+ { TARGET_PCS5G_BR + 5, 0x10424000, 1 }, /* 0x610424000 */
+ { TARGET_DEV2G5 + 13, 0x10428000, 1 }, /* 0x610428000 */
+ { TARGET_DEV10G + 1, 0x1042c000, 1 }, /* 0x61042c000 */
+ { TARGET_PCS10G_BR + 1, 0x10430000, 1 }, /* 0x610430000 */
+ { TARGET_DEV2G5 + 24, 0x10434000, 1 }, /* 0x610434000 */
+ { TARGET_DEV2G5 + 25, 0x10438000, 1 }, /* 0x610438000 */
+ { TARGET_DEV2G5 + 26, 0x1043c000, 1 }, /* 0x61043c000 */
+ { TARGET_DEV2G5 + 27, 0x10440000, 1 }, /* 0x610440000 */
+ { TARGET_DEV2G5 + 28, 0x10444000, 1 }, /* 0x610444000 */
+ { TARGET_DEV2G5 + 29, 0x10448000, 1 }, /* 0x610448000 */
+ { TARGET_DEV2G5 + 30, 0x1044c000, 1 }, /* 0x61044c000 */
+ { TARGET_DEV2G5 + 31, 0x10450000, 1 }, /* 0x610450000 */
+ { TARGET_DEV2G5 + 48, 0x10454000, 1 }, /* 0x610454000 */
+ { TARGET_DEV10G + 4, 0x10458000, 1 }, /* 0x610458000 */
+ { TARGET_PCS10G_BR + 4, 0x1045c000, 1 }, /* 0x61045c000 */
+ { TARGET_DEV2G5 + 49, 0x10460000, 1 }, /* 0x610460000 */
+ { TARGET_DEV10G + 5, 0x10464000, 1 }, /* 0x610464000 */
+ { TARGET_PCS10G_BR + 5, 0x10468000, 1 }, /* 0x610468000 */
+ { TARGET_DEV2G5 + 50, 0x1046c000, 1 }, /* 0x61046c000 */
+ { TARGET_DEV10G + 6, 0x10470000, 1 }, /* 0x610470000 */
+ { TARGET_PCS10G_BR + 6, 0x10474000, 1 }, /* 0x610474000 */
+ { TARGET_DEV2G5 + 51, 0x10478000, 1 }, /* 0x610478000 */
+ { TARGET_DEV10G + 7, 0x1047c000, 1 }, /* 0x61047c000 */
+ { TARGET_PCS10G_BR + 7, 0x10480000, 1 }, /* 0x610480000 */
+ { TARGET_DEV2G5 + 52, 0x10484000, 1 }, /* 0x610484000 */
+ { TARGET_DEV10G + 8, 0x10488000, 1 }, /* 0x610488000 */
+ { TARGET_PCS10G_BR + 8, 0x1048c000, 1 }, /* 0x61048c000 */
+ { TARGET_DEV2G5 + 53, 0x10490000, 1 }, /* 0x610490000 */
+ { TARGET_DEV10G + 9, 0x10494000, 1 }, /* 0x610494000 */
+ { TARGET_PCS10G_BR + 9, 0x10498000, 1 }, /* 0x610498000 */
+ { TARGET_DEV2G5 + 54, 0x1049c000, 1 }, /* 0x61049c000 */
+ { TARGET_DEV10G + 10, 0x104a0000, 1 }, /* 0x6104a0000 */
+ { TARGET_PCS10G_BR + 10, 0x104a4000, 1 }, /* 0x6104a4000 */
+ { TARGET_DEV2G5 + 55, 0x104a8000, 1 }, /* 0x6104a8000 */
+ { TARGET_DEV10G + 11, 0x104ac000, 1 }, /* 0x6104ac000 */
+ { TARGET_PCS10G_BR + 11, 0x104b0000, 1 }, /* 0x6104b0000 */
+ { TARGET_DEV2G5 + 56, 0x104b4000, 1 }, /* 0x6104b4000 */
+ { TARGET_DEV25G, 0x104b8000, 1 }, /* 0x6104b8000 */
+ { TARGET_PCS25G_BR, 0x104bc000, 1 }, /* 0x6104bc000 */
+ { TARGET_DEV2G5 + 58, 0x104c4000, 1 }, /* 0x6104c4000 */
+ { TARGET_DEV25G + 2, 0x104c8000, 1 }, /* 0x6104c8000 */
+ { TARGET_PCS25G_BR + 2, 0x104cc000, 1 }, /* 0x6104cc000 */
+ { TARGET_DEV2G5 + 61, 0x104d4000, 1 }, /* 0x6104d4000 */
+ { TARGET_DEV25G + 5, 0x104d8000, 1 }, /* 0x6104d8000 */
+ { TARGET_PCS25G_BR + 5, 0x104dc000, 1 }, /* 0x6104dc000 */
+ { TARGET_DEV2G5 + 62, 0x104e4000, 1 }, /* 0x6104e4000 */
+ { TARGET_DEV25G + 6, 0x104e8000, 1 }, /* 0x6104e8000 */
+ { TARGET_PCS25G_BR + 6, 0x104ec000, 1 }, /* 0x6104ec000 */
+ { TARGET_DEV2G5 + 63, 0x104f4000, 1 }, /* 0x6104f4000 */
+ { TARGET_DEV25G + 7, 0x104f8000, 1 }, /* 0x6104f8000 */
+ { TARGET_PCS25G_BR + 7, 0x104fc000, 1 }, /* 0x6104fc000 */
+ { TARGET_DSM, 0x10504000, 1 }, /* 0x610504000 */
+ { TARGET_ASM, 0x10600000, 1 }, /* 0x610600000 */
+ { TARGET_GCB, 0x11010000, 2 }, /* 0x611010000 */
+ { TARGET_QS, 0x11030000, 2 }, /* 0x611030000 */
+ { TARGET_ANA_ACL, 0x11050000, 2 }, /* 0x611050000 */
+ { TARGET_LRN, 0x11060000, 2 }, /* 0x611060000 */
+ { TARGET_VCAP_SUPER, 0x11080000, 2 }, /* 0x611080000 */
+ { TARGET_QSYS, 0x110a0000, 2 }, /* 0x6110a0000 */
+ { TARGET_QFWD, 0x110b0000, 2 }, /* 0x6110b0000 */
+ { TARGET_XQS, 0x110c0000, 2 }, /* 0x6110c0000 */
+ { TARGET_CLKGEN, 0x11100000, 2 }, /* 0x611100000 */
+ { TARGET_ANA_AC_POL, 0x11200000, 2 }, /* 0x611200000 */
+ { TARGET_QRES, 0x11280000, 2 }, /* 0x611280000 */
+ { TARGET_EACL, 0x112c0000, 2 }, /* 0x6112c0000 */
+ { TARGET_ANA_CL, 0x11400000, 2 }, /* 0x611400000 */
+ { TARGET_ANA_L3, 0x11480000, 2 }, /* 0x611480000 */
+ { TARGET_HSCH, 0x11580000, 2 }, /* 0x611580000 */
+ { TARGET_REW, 0x11600000, 2 }, /* 0x611600000 */
+ { TARGET_ANA_L2, 0x11800000, 2 }, /* 0x611800000 */
+ { TARGET_ANA_AC, 0x11900000, 2 }, /* 0x611900000 */
+ { TARGET_VOP, 0x11a00000, 2 }, /* 0x611a00000 */
+};
+
+static int sparx5_create_targets(struct sparx5 *sparx5)
+{
+ struct resource *iores[IO_RANGES];
+ void __iomem *iomem[IO_RANGES];
+ void __iomem *begin[IO_RANGES];
+ int range_id[IO_RANGES];
+ int idx, jdx;
+
+ for (idx = 0, jdx = 0; jdx < ARRAY_SIZE(sparx5_main_iomap); jdx++) {
+ const struct sparx5_main_io_resource *iomap = &sparx5_main_iomap[jdx];
+
+ if (idx == iomap->range) {
+ range_id[idx] = jdx;
+ idx++;
+ }
+ }
+ for (idx = 0; idx < IO_RANGES; idx++) {
+ iores[idx] = platform_get_resource(sparx5->pdev, IORESOURCE_MEM,
+ idx);
+ if (!iores[idx]) {
+ dev_err(sparx5->dev, "Invalid resource\n");
+ return -EINVAL;
+ }
+ iomem[idx] = devm_ioremap(sparx5->dev,
+ iores[idx]->start,
+ iores[idx]->end - iores[idx]->start
+ + 1);
+ if (!iomem[idx]) {
+ dev_err(sparx5->dev, "Unable to get switch registers: %s\n",
+ iores[idx]->name);
+ return -ENOMEM;
+ }
+ begin[idx] = iomem[idx] - sparx5_main_iomap[range_id[idx]].offset;
+ }
+ for (jdx = 0; jdx < ARRAY_SIZE(sparx5_main_iomap); jdx++) {
+ const struct sparx5_main_io_resource *iomap = &sparx5_main_iomap[jdx];
+
+ sparx5->regs[iomap->id] = begin[iomap->range] + iomap->offset;
+ }
+ return 0;
+}
+
+static int sparx5_create_port(struct sparx5 *sparx5,
+ struct initial_port_config *config)
+{
+ struct sparx5_port *spx5_port;
+ struct net_device *ndev;
+ struct phylink *phylink;
+ int err;
+
+ ndev = sparx5_create_netdev(sparx5, config->portno);
+ if (IS_ERR(ndev)) {
+ dev_err(sparx5->dev, "Could not create net device: %02u\n",
+ config->portno);
+ return PTR_ERR(ndev);
+ }
+ spx5_port = netdev_priv(ndev);
+ spx5_port->of_node = config->node;
+ spx5_port->serdes = config->serdes;
+ spx5_port->pvid = NULL_VID;
+ spx5_port->signd_internal = true;
+ spx5_port->signd_active_high = true;
+ spx5_port->signd_enable = true;
+ spx5_port->max_vlan_tags = SPX5_PORT_MAX_TAGS_NONE;
+ spx5_port->vlan_type = SPX5_VLAN_PORT_TYPE_UNAWARE;
+ spx5_port->custom_etype = 0x8880; /* Vitesse */
+ spx5_port->phylink_pcs.poll = true;
+ spx5_port->phylink_pcs.ops = &sparx5_phylink_pcs_ops;
+ sparx5->ports[config->portno] = spx5_port;
+
+ err = sparx5_port_init(sparx5, spx5_port, &config->conf);
+ if (err) {
+ dev_err(sparx5->dev, "port init failed\n");
+ return err;
+ }
+ spx5_port->conf = config->conf;
+
+ /* Setup VLAN */
+ sparx5_vlan_port_setup(sparx5, spx5_port->portno);
+
+ /* Create a phylink for PHY management. Also handles SFPs */
+ spx5_port->phylink_config.dev = &spx5_port->ndev->dev;
+ spx5_port->phylink_config.type = PHYLINK_NETDEV;
+ spx5_port->phylink_config.pcs_poll = true;
+
+ phylink = phylink_create(&spx5_port->phylink_config,
+ of_fwnode_handle(config->node),
+ config->conf.phy_mode,
+ &sparx5_phylink_mac_ops);
+ if (IS_ERR(phylink))
+ return PTR_ERR(phylink);
+
+ spx5_port->phylink = phylink;
+ phylink_set_pcs(phylink, &spx5_port->phylink_pcs);
+
+ return 0;
+}
+
+static int sparx5_init_ram(struct sparx5 *s5)
+{
+ const struct sparx5_ram_config spx5_ram_cfg[] = {
+ {spx5_reg_get(s5, ANA_AC_STAT_RESET), ANA_AC_STAT_RESET_RESET},
+ {spx5_reg_get(s5, ASM_STAT_CFG), ASM_STAT_CFG_STAT_CNT_CLR_SHOT},
+ {spx5_reg_get(s5, QSYS_RAM_INIT), QSYS_RAM_INIT_RAM_INIT},
+ {spx5_reg_get(s5, REW_RAM_INIT), QSYS_RAM_INIT_RAM_INIT},
+ {spx5_reg_get(s5, VOP_RAM_INIT), QSYS_RAM_INIT_RAM_INIT},
+ {spx5_reg_get(s5, ANA_AC_RAM_INIT), QSYS_RAM_INIT_RAM_INIT},
+ {spx5_reg_get(s5, ASM_RAM_INIT), QSYS_RAM_INIT_RAM_INIT},
+ {spx5_reg_get(s5, EACL_RAM_INIT), QSYS_RAM_INIT_RAM_INIT},
+ {spx5_reg_get(s5, VCAP_SUPER_RAM_INIT), QSYS_RAM_INIT_RAM_INIT},
+ {spx5_reg_get(s5, DSM_RAM_INIT), QSYS_RAM_INIT_RAM_INIT}
+ };
+ const struct sparx5_ram_config *cfg;
+ u32 value, pending, jdx, idx;
+
+ for (jdx = 0; jdx < 10; jdx++) {
+ pending = ARRAY_SIZE(spx5_ram_cfg);
+ for (idx = 0; idx < ARRAY_SIZE(spx5_ram_cfg); idx++) {
+ cfg = &spx5_ram_cfg[idx];
+ if (jdx == 0) {
+ writel(cfg->init_val, cfg->init_reg);
+ } else {
+ value = readl(cfg->init_reg);
+ if ((value & cfg->init_val) != cfg->init_val)
+ pending--;
+ }
+ }
+ if (!pending)
+ break;
+ usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
+ }
+
+ if (pending > 0) {
+ /* Still initializing, should be complete in
+ * less than 1ms
+ */
+ dev_err(s5->dev, "Memory initialization error\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int sparx5_init_switchcore(struct sparx5 *sparx5)
+{
+ u32 value;
+ int err = 0;
+
+ spx5_rmw(EACL_POL_EACL_CFG_EACL_FORCE_INIT_SET(1),
+ EACL_POL_EACL_CFG_EACL_FORCE_INIT,
+ sparx5,
+ EACL_POL_EACL_CFG);
+
+ spx5_rmw(EACL_POL_EACL_CFG_EACL_FORCE_INIT_SET(0),
+ EACL_POL_EACL_CFG_EACL_FORCE_INIT,
+ sparx5,
+ EACL_POL_EACL_CFG);
+
+ /* Initialize memories, if not done already */
+ value = spx5_rd(sparx5, HSCH_RESET_CFG);
+ if (!(value & HSCH_RESET_CFG_CORE_ENA)) {
+ err = sparx5_init_ram(sparx5);
+ if (err)
+ return err;
+ }
+
+ /* Reset counters */
+ spx5_wr(ANA_AC_STAT_RESET_RESET_SET(1), sparx5, ANA_AC_STAT_RESET);
+ spx5_wr(ASM_STAT_CFG_STAT_CNT_CLR_SHOT_SET(1), sparx5, ASM_STAT_CFG);
+
+ /* Enable switch-core and queue system */
+ spx5_wr(HSCH_RESET_CFG_CORE_ENA_SET(1), sparx5, HSCH_RESET_CFG);
+
+ return 0;
+}
+
+static int sparx5_init_coreclock(struct sparx5 *sparx5)
+{
+ enum sparx5_core_clockfreq freq = sparx5->coreclock;
+ u32 clk_div, clk_period, pol_upd_int, idx;
+
+ /* Verify if core clock frequency is supported on target.
+ * If 'VTSS_CORE_CLOCK_DEFAULT' then the highest supported
+ * freq. is used
+ */
+ switch (sparx5->target_ct) {
+ case SPX5_TARGET_CT_7546:
+ if (sparx5->coreclock == SPX5_CORE_CLOCK_DEFAULT)
+ freq = SPX5_CORE_CLOCK_250MHZ;
+ else if (sparx5->coreclock != SPX5_CORE_CLOCK_250MHZ)
+ freq = 0; /* Not supported */
+ break;
+ case SPX5_TARGET_CT_7549:
+ case SPX5_TARGET_CT_7552:
+ case SPX5_TARGET_CT_7556:
+ if (sparx5->coreclock == SPX5_CORE_CLOCK_DEFAULT)
+ freq = SPX5_CORE_CLOCK_500MHZ;
+ else if (sparx5->coreclock != SPX5_CORE_CLOCK_500MHZ)
+ freq = 0; /* Not supported */
+ break;
+ case SPX5_TARGET_CT_7558:
+ case SPX5_TARGET_CT_7558TSN:
+ if (sparx5->coreclock == SPX5_CORE_CLOCK_DEFAULT)
+ freq = SPX5_CORE_CLOCK_625MHZ;
+ else if (sparx5->coreclock != SPX5_CORE_CLOCK_625MHZ)
+ freq = 0; /* Not supported */
+ break;
+ case SPX5_TARGET_CT_7546TSN:
+ if (sparx5->coreclock == SPX5_CORE_CLOCK_DEFAULT)
+ freq = SPX5_CORE_CLOCK_625MHZ;
+ break;
+ case SPX5_TARGET_CT_7549TSN:
+ case SPX5_TARGET_CT_7552TSN:
+ case SPX5_TARGET_CT_7556TSN:
+ if (sparx5->coreclock == SPX5_CORE_CLOCK_DEFAULT)
+ freq = SPX5_CORE_CLOCK_625MHZ;
+ else if (sparx5->coreclock == SPX5_CORE_CLOCK_250MHZ)
+ freq = 0; /* Not supported */
+ break;
+ default:
+ dev_err(sparx5->dev, "Target (%#04x) not supported\n",
+ sparx5->target_ct);
+ return -ENODEV;
+ }
+
+ switch (freq) {
+ case SPX5_CORE_CLOCK_250MHZ:
+ clk_div = 10;
+ pol_upd_int = 312;
+ break;
+ case SPX5_CORE_CLOCK_500MHZ:
+ clk_div = 5;
+ pol_upd_int = 624;
+ break;
+ case SPX5_CORE_CLOCK_625MHZ:
+ clk_div = 4;
+ pol_upd_int = 780;
+ break;
+ default:
+ dev_err(sparx5->dev, "%d coreclock not supported on (%#04x)\n",
+ sparx5->coreclock, sparx5->target_ct);
+ return -EINVAL;
+ }
+
+ /* Update state with chosen frequency */
+ sparx5->coreclock = freq;
+
+ /* Configure the LCPLL */
+ spx5_rmw(CLKGEN_LCPLL1_CORE_CLK_CFG_CORE_CLK_DIV_SET(clk_div) |
+ CLKGEN_LCPLL1_CORE_CLK_CFG_CORE_PRE_DIV_SET(0) |
+ CLKGEN_LCPLL1_CORE_CLK_CFG_CORE_ROT_DIR_SET(0) |
+ CLKGEN_LCPLL1_CORE_CLK_CFG_CORE_ROT_SEL_SET(0) |
+ CLKGEN_LCPLL1_CORE_CLK_CFG_CORE_ROT_ENA_SET(0) |
+ CLKGEN_LCPLL1_CORE_CLK_CFG_CORE_CLK_ENA_SET(1),
+ CLKGEN_LCPLL1_CORE_CLK_CFG_CORE_CLK_DIV |
+ CLKGEN_LCPLL1_CORE_CLK_CFG_CORE_PRE_DIV |
+ CLKGEN_LCPLL1_CORE_CLK_CFG_CORE_ROT_DIR |
+ CLKGEN_LCPLL1_CORE_CLK_CFG_CORE_ROT_SEL |
+ CLKGEN_LCPLL1_CORE_CLK_CFG_CORE_ROT_ENA |
+ CLKGEN_LCPLL1_CORE_CLK_CFG_CORE_CLK_ENA,
+ sparx5,
+ CLKGEN_LCPLL1_CORE_CLK_CFG);
+
+ clk_period = sparx5_clk_period(freq);
+
+ spx5_rmw(HSCH_SYS_CLK_PER_SYS_CLK_PER_100PS_SET(clk_period / 100),
+ HSCH_SYS_CLK_PER_SYS_CLK_PER_100PS,
+ sparx5,
+ HSCH_SYS_CLK_PER);
+
+ spx5_rmw(ANA_AC_POL_BDLB_DLB_CTRL_CLK_PERIOD_01NS_SET(clk_period / 100),
+ ANA_AC_POL_BDLB_DLB_CTRL_CLK_PERIOD_01NS,
+ sparx5,
+ ANA_AC_POL_BDLB_DLB_CTRL);
+
+ spx5_rmw(ANA_AC_POL_SLB_DLB_CTRL_CLK_PERIOD_01NS_SET(clk_period / 100),
+ ANA_AC_POL_SLB_DLB_CTRL_CLK_PERIOD_01NS,
+ sparx5,
+ ANA_AC_POL_SLB_DLB_CTRL);
+
+ spx5_rmw(LRN_AUTOAGE_CFG_1_CLK_PERIOD_01NS_SET(clk_period / 100),
+ LRN_AUTOAGE_CFG_1_CLK_PERIOD_01NS,
+ sparx5,
+ LRN_AUTOAGE_CFG_1);
+
+ for (idx = 0; idx < 3; idx++)
+ spx5_rmw(GCB_SIO_CLOCK_SYS_CLK_PERIOD_SET(clk_period / 100),
+ GCB_SIO_CLOCK_SYS_CLK_PERIOD,
+ sparx5,
+ GCB_SIO_CLOCK(idx));
+
+ spx5_rmw(HSCH_TAS_STATEMACHINE_CFG_REVISIT_DLY_SET
+ ((256 * 1000) / clk_period),
+ HSCH_TAS_STATEMACHINE_CFG_REVISIT_DLY,
+ sparx5,
+ HSCH_TAS_STATEMACHINE_CFG);
+
+ spx5_rmw(ANA_AC_POL_POL_UPD_INT_CFG_POL_UPD_INT_SET(pol_upd_int),
+ ANA_AC_POL_POL_UPD_INT_CFG_POL_UPD_INT,
+ sparx5,
+ ANA_AC_POL_POL_UPD_INT_CFG);
+
+ return 0;
+}
+
+static int sparx5_qlim_set(struct sparx5 *sparx5)
+{
+ u32 res, dp, prio;
+
+ for (res = 0; res < 2; res++) {
+ for (prio = 0; prio < 8; prio++)
+ spx5_wr(0xFFF, sparx5,
+ QRES_RES_CFG(prio + 630 + res * 1024));
+
+ for (dp = 0; dp < 4; dp++)
+ spx5_wr(0xFFF, sparx5,
+ QRES_RES_CFG(dp + 638 + res * 1024));
+ }
+
+ /* Set 80,90,95,100% of memory size for top watermarks */
+ spx5_wr(QLIM_WM(80), sparx5, XQS_QLIMIT_SHR_QLIM_CFG(0));
+ spx5_wr(QLIM_WM(90), sparx5, XQS_QLIMIT_SHR_CTOP_CFG(0));
+ spx5_wr(QLIM_WM(95), sparx5, XQS_QLIMIT_SHR_ATOP_CFG(0));
+ spx5_wr(QLIM_WM(100), sparx5, XQS_QLIMIT_SHR_TOP_CFG(0));
+
+ return 0;
+}
+
+/* Some boards needs to map the SGPIO for signal detect explicitly to the
+ * port module
+ */
+static void sparx5_board_init(struct sparx5 *sparx5)
+{
+ int idx;
+
+ if (!sparx5->sd_sgpio_remapping)
+ return;
+
+ /* Enable SGPIO Signal Detect remapping */
+ spx5_rmw(GCB_HW_SGPIO_SD_CFG_SD_MAP_SEL,
+ GCB_HW_SGPIO_SD_CFG_SD_MAP_SEL,
+ sparx5,
+ GCB_HW_SGPIO_SD_CFG);
+
+ /* Refer to LOS SGPIO */
+ for (idx = 0; idx < SPX5_PORTS; idx++)
+ if (sparx5->ports[idx])
+ if (sparx5->ports[idx]->conf.sd_sgpio != ~0)
+ spx5_wr(sparx5->ports[idx]->conf.sd_sgpio,
+ sparx5,
+ GCB_HW_SGPIO_TO_SD_MAP_CFG(idx));
+}
+
+static int sparx5_start(struct sparx5 *sparx5)
+{
+ u8 broadcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+ char queue_name[32];
+ u32 idx;
+ int err;
+
+ /* Setup own UPSIDs */
+ for (idx = 0; idx < 3; idx++) {
+ spx5_wr(idx, sparx5, ANA_AC_OWN_UPSID(idx));
+ spx5_wr(idx, sparx5, ANA_CL_OWN_UPSID(idx));
+ spx5_wr(idx, sparx5, ANA_L2_OWN_UPSID(idx));
+ spx5_wr(idx, sparx5, REW_OWN_UPSID(idx));
+ }
+
+ /* Enable CPU ports */
+ for (idx = SPX5_PORTS; idx < SPX5_PORTS_ALL; idx++)
+ spx5_rmw(QFWD_SWITCH_PORT_MODE_PORT_ENA_SET(1),
+ QFWD_SWITCH_PORT_MODE_PORT_ENA,
+ sparx5,
+ QFWD_SWITCH_PORT_MODE(idx));
+
+ /* Init masks */
+ sparx5_update_fwd(sparx5);
+
+ /* CPU copy CPU pgids */
+ spx5_wr(ANA_AC_PGID_MISC_CFG_PGID_CPU_COPY_ENA_SET(1),
+ sparx5, ANA_AC_PGID_MISC_CFG(PGID_CPU));
+ spx5_wr(ANA_AC_PGID_MISC_CFG_PGID_CPU_COPY_ENA_SET(1),
+ sparx5, ANA_AC_PGID_MISC_CFG(PGID_BCAST));
+
+ /* Recalc injected frame FCS */
+ for (idx = SPX5_PORT_CPU_0; idx <= SPX5_PORT_CPU_1; idx++)
+ spx5_rmw(ANA_CL_FILTER_CTRL_FORCE_FCS_UPDATE_ENA_SET(1),
+ ANA_CL_FILTER_CTRL_FORCE_FCS_UPDATE_ENA,
+ sparx5, ANA_CL_FILTER_CTRL(idx));
+
+ /* Init MAC table, ageing */
+ sparx5_mact_init(sparx5);
+
+ /* Setup VLANs */
+ sparx5_vlan_init(sparx5);
+
+ /* Add host mode BC address (points only to CPU) */
+ sparx5_mact_learn(sparx5, PGID_CPU, broadcast, NULL_VID);
+
+ /* Enable queue limitation watermarks */
+ sparx5_qlim_set(sparx5);
+
+ err = sparx5_config_auto_calendar(sparx5);
+ if (err)
+ return err;
+
+ err = sparx5_config_dsm_calendar(sparx5);
+ if (err)
+ return err;
+
+ /* Init stats */
+ err = sparx_stats_init(sparx5);
+ if (err)
+ return err;
+
+ /* Init mact_sw struct */
+ mutex_init(&sparx5->mact_lock);
+ INIT_LIST_HEAD(&sparx5->mact_entries);
+ snprintf(queue_name, sizeof(queue_name), "%s-mact",
+ dev_name(sparx5->dev));
+ sparx5->mact_queue = create_singlethread_workqueue(queue_name);
+ INIT_DELAYED_WORK(&sparx5->mact_work, sparx5_mact_pull_work);
+ queue_delayed_work(sparx5->mact_queue, &sparx5->mact_work,
+ SPX5_MACT_PULL_DELAY);
+
+ err = sparx5_register_netdevs(sparx5);
+ if (err)
+ return err;
+
+ sparx5_board_init(sparx5);
+ err = sparx5_register_notifier_blocks(sparx5);
+
+ /* Start register based INJ/XTR */
+ err = -ENXIO;
+ if (err && sparx5->xtr_irq >= 0) {
+ err = devm_request_irq(sparx5->dev, sparx5->xtr_irq,
+ sparx5_xtr_handler, IRQF_SHARED,
+ "sparx5-xtr", sparx5);
+ if (!err)
+ err = sparx5_manual_injection_mode(sparx5);
+ if (err)
+ sparx5->xtr_irq = -ENXIO;
+ } else {
+ sparx5->xtr_irq = -ENXIO;
+ }
+ return err;
+}
+
+static void sparx5_cleanup_ports(struct sparx5 *sparx5)
+{
+ sparx5_unregister_netdevs(sparx5);
+ sparx5_destroy_netdevs(sparx5);
+}
+
+static int mchp_sparx5_probe(struct platform_device *pdev)
+{
+ struct initial_port_config *configs, *config;
+ struct device_node *np = pdev->dev.of_node;
+ struct device_node *ports, *portnp;
+ struct reset_control *reset;
+ struct sparx5 *sparx5;
+ int idx = 0, err = 0;
+
+ if (!np && !pdev->dev.platform_data)
+ return -ENODEV;
+
+ sparx5 = devm_kzalloc(&pdev->dev, sizeof(*sparx5), GFP_KERNEL);
+ if (!sparx5)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, sparx5);
+ sparx5->pdev = pdev;
+ sparx5->dev = &pdev->dev;
+
+ /* Do switch core reset if available */
+ reset = devm_reset_control_get_optional_shared(&pdev->dev, "switch");
+ if (IS_ERR(reset))
+ return dev_err_probe(&pdev->dev, PTR_ERR(reset),
+ "Failed to get switch reset controller.\n");
+ reset_control_reset(reset);
+
+ /* Default values, some from DT */
+ sparx5->coreclock = SPX5_CORE_CLOCK_DEFAULT;
+
+ ports = of_get_child_by_name(np, "ethernet-ports");
+ if (!ports) {
+ dev_err(sparx5->dev, "no ethernet-ports child node found\n");
+ return -ENODEV;
+ }
+ sparx5->port_count = of_get_child_count(ports);
+
+ configs = kcalloc(sparx5->port_count,
+ sizeof(struct initial_port_config), GFP_KERNEL);
+ if (!configs) {
+ err = -ENOMEM;
+ goto cleanup_pnode;
+ }
+
+ for_each_available_child_of_node(ports, portnp) {
+ struct sparx5_port_config *conf;
+ struct phy *serdes;
+ u32 portno;
+
+ err = of_property_read_u32(portnp, "reg", &portno);
+ if (err) {
+ dev_err(sparx5->dev, "port reg property error\n");
+ continue;
+ }
+ config = &configs[idx];
+ conf = &config->conf;
+ conf->speed = SPEED_UNKNOWN;
+ conf->bandwidth = SPEED_UNKNOWN;
+ err = of_get_phy_mode(portnp, &conf->phy_mode);
+ if (err) {
+ dev_err(sparx5->dev, "port %u: missing phy-mode\n",
+ portno);
+ continue;
+ }
+ err = of_property_read_u32(portnp, "microchip,bandwidth",
+ &conf->bandwidth);
+ if (err) {
+ dev_err(sparx5->dev, "port %u: missing bandwidth\n",
+ portno);
+ continue;
+ }
+ err = of_property_read_u32(portnp, "microchip,sd-sgpio", &conf->sd_sgpio);
+ if (err)
+ conf->sd_sgpio = ~0;
+ else
+ sparx5->sd_sgpio_remapping = true;
+ serdes = devm_of_phy_get(sparx5->dev, portnp, NULL);
+ if (IS_ERR(serdes)) {
+ err = dev_err_probe(sparx5->dev, PTR_ERR(serdes),
+ "port %u: missing serdes\n",
+ portno);
+ goto cleanup_config;
+ }
+ config->portno = portno;
+ config->node = portnp;
+ config->serdes = serdes;
+
+ conf->media = PHY_MEDIA_DAC;
+ conf->serdes_reset = true;
+ conf->portmode = conf->phy_mode;
+ conf->power_down = true;
+ idx++;
+ }
+
+ err = sparx5_create_targets(sparx5);
+ if (err)
+ goto cleanup_config;
+
+ if (!of_get_mac_address(np, sparx5->base_mac)) {
+ dev_info(sparx5->dev, "MAC addr was not set, use random MAC\n");
+ eth_random_addr(sparx5->base_mac);
+ sparx5->base_mac[5] = 0;
+ }
+
+ sparx5->xtr_irq = platform_get_irq_byname(sparx5->pdev, "xtr");
+
+ /* Read chip ID to check CPU interface */
+ sparx5->chip_id = spx5_rd(sparx5, GCB_CHIP_ID);
+
+ sparx5->target_ct = (enum spx5_target_chiptype)
+ GCB_CHIP_ID_PART_ID_GET(sparx5->chip_id);
+
+ /* Initialize Switchcore and internal RAMs */
+ err = sparx5_init_switchcore(sparx5);
+ if (err) {
+ dev_err(sparx5->dev, "Switchcore initialization error\n");
+ goto cleanup_config;
+ }
+
+ /* Initialize the LC-PLL (core clock) and set affected registers */
+ err = sparx5_init_coreclock(sparx5);
+ if (err) {
+ dev_err(sparx5->dev, "LC-PLL initialization error\n");
+ goto cleanup_config;
+ }
+
+ for (idx = 0; idx < sparx5->port_count; ++idx) {
+ config = &configs[idx];
+ if (!config->node)
+ continue;
+
+ err = sparx5_create_port(sparx5, config);
+ if (err) {
+ dev_err(sparx5->dev, "port create error\n");
+ goto cleanup_ports;
+ }
+ }
+
+ err = sparx5_start(sparx5);
+ if (err) {
+ dev_err(sparx5->dev, "Start failed\n");
+ goto cleanup_ports;
+ }
+ goto cleanup_config;
+
+cleanup_ports:
+ sparx5_cleanup_ports(sparx5);
+cleanup_config:
+ kfree(configs);
+cleanup_pnode:
+ of_node_put(ports);
+ return err;
+}
+
+static int mchp_sparx5_remove(struct platform_device *pdev)
+{
+ struct sparx5 *sparx5 = platform_get_drvdata(pdev);
+
+ if (sparx5->xtr_irq) {
+ disable_irq(sparx5->xtr_irq);
+ sparx5->xtr_irq = -ENXIO;
+ }
+ sparx5_cleanup_ports(sparx5);
+ /* Unregister netdevs */
+ sparx5_unregister_notifier_blocks(sparx5);
+
+ return 0;
+}
+
+static const struct of_device_id mchp_sparx5_match[] = {
+ { .compatible = "microchip,sparx5-switch" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, mchp_sparx5_match);
+
+static struct platform_driver mchp_sparx5_driver = {
+ .probe = mchp_sparx5_probe,
+ .remove = mchp_sparx5_remove,
+ .driver = {
+ .name = "sparx5-switch",
+ .of_match_table = mchp_sparx5_match,
+ },
+};
+
+module_platform_driver(mchp_sparx5_driver);
+
+MODULE_DESCRIPTION("Microchip Sparx5 switch driver");
+MODULE_AUTHOR("Steen Hegelund <steen.hegelund@microchip.com>");
+MODULE_LICENSE("Dual MIT/GPL");