[PATCH v6 7/9] platform: mellanox: mlx-platform: Add support for new Nvidia system

[Vadim Pasternak <vadimp@nvidia.com>]

Add support for SN5640 and SN5610 Nvidia switch.

SN5640 is a 51.2Tbps switch based on Nvidia SPC-5 ASIC.
It provides up-to 400Gbps full bidirectional bandwidth per port.
The system supports 64 OSFP cages and fits into standard 2U racks.

SN5640 Features:
- 64 OSFP ports supporting 2.5Gbps - 400Gbps speeds.
- Air-cooled with 4 + 1 redundant fan units.
- 2 + 2 redundant 2000W PSUs.
- System management board based on AMD CPU with secure-boot support.

SN5610 is a 51.2Tbps switch based on Nvidia SPC-4 ASIC.
It provides up-to 800Gbps full bidirectional bandwidth per port.
The system supports 64 OSFP cages and fits into standard 2U racks.

SN5610 Features:
 - 64 OSFP ports supporting 10Gbps - 800Gbps speeds.
 - 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>
---
v5->v6
Comments pointed out by Ilpo:
- Change 'int' to 'unsigned int' in mlxplat_dmi_ng400_hi171_matched().

v2->v3
Comments pointed out by Ilpo:
- Add empty lines for visibility in mlxplat_dmi_ng400_hi171_matched().
---
 drivers/platform/mellanox/mlx-platform.c | 97 ++++++++++++++++++++++++
 1 file changed, 97 insertions(+)

diff --git a/drivers/platform/mellanox/mlx-platform.c b/drivers/platform/mellanox/mlx-platform.c
index bb50db717baf..1d91143f40a5 100644
--- a/drivers/platform/mellanox/mlx-platform.c
+++ b/drivers/platform/mellanox/mlx-platform.c
@@ -3042,6 +3042,60 @@ 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 next-generation 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,
+		.capability_mask = MLXPLAT_CPLD_FAN_CAP_MASK,
+		.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[] = {
 	{
@@ -4528,6 +4582,12 @@ 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,
@@ -7354,6 +7414,29 @@ 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,
@@ -7454,6 +7537,20 @@ 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 = {
-- 
2.44.0