platform: mellanox: mlx-platform: Add support for new Nvidia system

Add support for SN5640 and SN5610 Nvidia switches:
- SN5610 is a 51.2Tbps switch based on Nvidia SPC-4 ASIC equipped with 64
  OSFP ports supporting 2.5Gbps - 400Gbps speeds.
- SN5640 is a 51.2Tbps switch based on Nvidia SPC-5 ASIC equipped with 64
  OSFP ports supporting 10Gbps - 800Gbps speeds.

Both equipped with:
- Air-cooled with 4 + 1 redundant fan units.
- 2 + 2 redundant 2000W PSUs.
- System management board based on AMD CPU with secure-boot support.

Reviewed-by: Oleksandr Shamray <oleksandrs@nvidia.com>
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20250421092051.7687-5-vadimp@nvidia.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

diff --git a/drivers/platform/mellanox/mlx-platform.c b/drivers/platform/mellanox/mlx-platform.c
index 30e43ae..d0df18b 100644 (file)
--- a/drivers/platform/mellanox/mlx-platform.c
+++ b/drivers/platform/mellanox/mlx-platform.c
@@ -3000,6 +3000,59 @@ struct mlxreg_core_hotplug_platform_data mlxplat_mlxcpld_l1_switch_data = {
        .mask_low = MLXPLAT_CPLD_LOW_AGGR_MASK_LOW | MLXPLAT_CPLD_LOW_AGGR_MASK_PWR_BUT,
 };
 
+/* Platform hotplug for 800G systems family data  */
+static struct mlxreg_core_item mlxplat_mlxcpld_ng800_hi171_items[] = {
+       {
+               .data = mlxplat_mlxcpld_ext_psu_items_data,
+               .aggr_mask = MLXPLAT_CPLD_AGGR_MASK_NG_DEF,
+               .reg = MLXPLAT_CPLD_LPC_REG_PSU_OFFSET,
+               .mask = MLXPLAT_CPLD_PSU_EXT_MASK,
+               .capability = MLXPLAT_CPLD_LPC_REG_PSU_I2C_CAP_OFFSET,
+               .count = ARRAY_SIZE(mlxplat_mlxcpld_ext_psu_items_data),
+               .inversed = 1,
+               .health = false,
+       },
+       {
+               .data = mlxplat_mlxcpld_modular_pwr_items_data,
+               .aggr_mask = MLXPLAT_CPLD_AGGR_MASK_NG_DEF,
+               .reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
+               .mask = MLXPLAT_CPLD_PWR_EXT_MASK,
+               .capability = MLXPLAT_CPLD_LPC_REG_PSU_I2C_CAP_OFFSET,
+               .count = ARRAY_SIZE(mlxplat_mlxcpld_ext_pwr_items_data),
+               .inversed = 0,
+               .health = false,
+       },
+       {
+               .data = mlxplat_mlxcpld_xdr_fan_items_data,
+               .aggr_mask = MLXPLAT_CPLD_AGGR_MASK_NG_DEF,
+               .reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
+               .mask = MLXPLAT_CPLD_FAN_XDR_MASK,
+               .capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+               .count = ARRAY_SIZE(mlxplat_mlxcpld_xdr_fan_items_data),
+               .inversed = 1,
+               .health = false,
+       },
+       {
+               .data = mlxplat_mlxcpld_default_asic_items_data,
+               .aggr_mask = MLXPLAT_CPLD_AGGR_MASK_NG_DEF,
+               .reg = MLXPLAT_CPLD_LPC_REG_ASIC_HEALTH_OFFSET,
+               .mask = MLXPLAT_CPLD_ASIC_MASK,
+               .count = ARRAY_SIZE(mlxplat_mlxcpld_default_asic_items_data),
+               .inversed = 0,
+               .health = true,
+       },
+};
+
+static
+struct mlxreg_core_hotplug_platform_data mlxplat_mlxcpld_ng800_hi171_data = {
+       .items = mlxplat_mlxcpld_ng800_hi171_items,
+       .count = ARRAY_SIZE(mlxplat_mlxcpld_ng800_hi171_items),
+       .cell = MLXPLAT_CPLD_LPC_REG_AGGR_OFFSET,
+       .mask = MLXPLAT_CPLD_AGGR_MASK_NG_DEF | MLXPLAT_CPLD_AGGR_MASK_COMEX,
+       .cell_low = MLXPLAT_CPLD_LPC_REG_AGGRLO_OFFSET,
+       .mask_low = MLXPLAT_CPLD_LOW_AGGR_MASK_LOW | MLXPLAT_CPLD_LOW_AGGR_MASK_ASIC2,
+};
+
 /* Platform led default data */
 static struct mlxreg_core_data mlxplat_mlxcpld_default_led_data[] = {
        {
@@ -4486,6 +4539,12 @@ static struct mlxreg_core_data mlxplat_mlxcpld_default_ng_regs_io_data[] = {
                .mask = GENMASK(7, 0) & ~BIT(4),
                .mode = 0644,
        },
+       {
+               .label = "shutdown_unlock",
+               .reg = MLXPLAT_CPLD_LPC_REG_GP0_OFFSET,
+               .mask = GENMASK(7, 0) & ~BIT(5),
+               .mode = 0644,
+       },
        {
                .label = "erot1_ap_reset",
                .reg = MLXPLAT_CPLD_LPC_REG_GP4_RO_OFFSET,
@@ -7312,6 +7371,29 @@ static int __init mlxplat_dmi_smart_switch_matched(const struct dmi_system_id *d
        return mlxplat_register_platform_device();
 }
 
+static int __init mlxplat_dmi_ng400_hi171_matched(const struct dmi_system_id *dmi)
+{
+       unsigned int i;
+
+       mlxplat_max_adap_num = MLXPLAT_CPLD_MAX_PHYS_ADAPTER_NUM;
+       mlxplat_mux_num = ARRAY_SIZE(mlxplat_ng800_mux_data);
+       mlxplat_mux_data = mlxplat_ng800_mux_data;
+       mlxplat_hotplug = &mlxplat_mlxcpld_ng800_hi171_data;
+       mlxplat_hotplug->deferred_nr =
+               mlxplat_msn21xx_channels[MLXPLAT_CPLD_GRP_CHNL_NUM - 1];
+       mlxplat_led = &mlxplat_default_ng_led_data;
+       mlxplat_regs_io = &mlxplat_default_ng_regs_io_data;
+       mlxplat_fan = &mlxplat_xdr_fan_data;
+
+       for (i = 0; i < ARRAY_SIZE(mlxplat_mlxcpld_wd_set_type3); i++)
+               mlxplat_wd_data[i] = &mlxplat_mlxcpld_wd_set_type3[i];
+
+       mlxplat_i2c = &mlxplat_mlxcpld_i2c_ng_data;
+       mlxplat_regmap_config = &mlxplat_mlxcpld_regmap_config_ng400;
+
+       return mlxplat_register_platform_device();
+}
+
 static const struct dmi_system_id mlxplat_dmi_table[] __initconst = {
        {
                .callback = mlxplat_dmi_default_wc_matched,
@@ -7412,6 +7494,20 @@ static const struct dmi_system_id mlxplat_dmi_table[] __initconst = {
                        DMI_MATCH(DMI_BOARD_NAME, "VMOD0019"),
                },
        },
+       {
+               .callback = mlxplat_dmi_ng400_hi171_matched,
+               .matches = {
+                       DMI_MATCH(DMI_BOARD_NAME, "VMOD0022"),
+                       DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "HI171"),
+               },
+       },
+       {
+               .callback = mlxplat_dmi_ng400_hi171_matched,
+               .matches = {
+                       DMI_MATCH(DMI_BOARD_NAME, "VMOD0022"),
+                       DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "HI172"),
+               },
+       },
        {
                .callback = mlxplat_dmi_msn274x_matched,
                .matches = {