1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
5  * Copyright (C) 2016-2018 Mellanox Technologies
6  * Copyright (C) 2016-2018 Vadim Pasternak <vadimp@mellanox.com>
12 #include <linux/i2c-mux.h>
17 #include <linux/platform_data/i2c-mux-reg.h>
330 #define MLXPLAT_CPLD_NR_NONE			-1
364 #define MLXPLAT_CPLD_ETH_MODULAR_PWR_MIN	50
378 /* mlxplat_priv - platform private data
379  * @pdev_i2c - i2c controller platform device
380  * @pdev_mux - array of mux platform devices
381  * @pdev_hotplug - hotplug platform devices
382  * @pdev_led - led platform devices
383  * @pdev_io_regs - register access platform devices
384  * @pdev_fan - FAN platform devices
385  * @pdev_wd - array of watchdog platform devices
386  * pdev_dpu - array of Data Processor Unit platform devices
1510 		I2C_BOARD_INFO("mlxreg-lc", MLXPLAT_CPLD_LC_ADDR),
1514 		I2C_BOARD_INFO("mlxreg-lc", MLXPLAT_CPLD_LC_ADDR),
1518 		I2C_BOARD_INFO("mlxreg-lc", MLXPLAT_CPLD_LC_ADDR),
1522 		I2C_BOARD_INFO("mlxreg-lc", MLXPLAT_CPLD_LC_ADDR),
1526 		I2C_BOARD_INFO("mlxreg-lc", MLXPLAT_CPLD_LC_ADDR),
1530 		I2C_BOARD_INFO("mlxreg-lc", MLXPLAT_CPLD_LC_ADDR),
1534 		I2C_BOARD_INFO("mlxreg-lc", MLXPLAT_CPLD_LC_ADDR),
1538 		I2C_BOARD_INFO("mlxreg-lc", MLXPLAT_CPLD_LC_ADDR),
2804 		I2C_BOARD_INFO("mlxreg-dpu", MLXPLAT_CPLD_DPU_ADDR),
2808 		I2C_BOARD_INFO("mlxreg-dpu", MLXPLAT_CPLD_DPU_ADDR),
2812 		I2C_BOARD_INFO("mlxreg-dpu", MLXPLAT_CPLD_DPU_ADDR),
2816 		I2C_BOARD_INFO("mlxreg-dpu", MLXPLAT_CPLD_DPU_ADDR),
2854 		dev_info(&mlxplat_dev->dev, "System shutdown due to short press of power button");  in mlxplat_mlxcpld_l1_switch_pwr_events_handler()
2886 	err = regmap_read(priv->regmap, MLXPLAT_CPLD_LPC_REG_GP1_OFFSET, &regval);  in mlxplat_mlxcpld_l1_switch_intrusion_events_handler()
2891 		dev_info(&mlxplat_dev->dev, "Detected intrusion - system latch is opened");  in mlxplat_mlxcpld_l1_switch_intrusion_events_handler()
2892 		err = regmap_write(priv->regmap, MLXPLAT_CPLD_LPC_REG_GP1_OFFSET,  in mlxplat_mlxcpld_l1_switch_intrusion_events_handler()
2895 		dev_info(&mlxplat_dev->dev, "System latch is properly closed");  in mlxplat_mlxcpld_l1_switch_intrusion_events_handler()
2896 		err = regmap_write(priv->regmap, MLXPLAT_CPLD_LPC_REG_GP1_OFFSET,  in mlxplat_mlxcpld_l1_switch_intrusion_events_handler()
2907 	dev_err(&mlxplat_dev->dev, "Register access failed");  in mlxplat_mlxcpld_l1_switch_intrusion_events_handler()
3227 /* Platform led for default data for 200GbE systems */
3359 /* Platform led for Comex based 100GbE systems */
6171 		.identity = "mlx-wdt-main",
6177 		.identity = "mlx-wdt-aux",
6247 		.identity = "mlx-wdt-main",
6253 		.identity = "mlx-wdt-aux",
6325 		.identity = "mlx-wdt-main",
6331 		.identity = "mlx-wdt-aux",
6855 	*val = ioread8(ctx->base + reg);  in mlxplat_mlxcpld_reg_read()
6864 	iowrite8(val, ctx->base + reg);  in mlxplat_mlxcpld_reg_write()
6967 	[0] = DEFINE_RES_IRQ_NAMED(MLXPLAT_CPLD_LPC_SYSIRQ, "mlxreg-hotplug"),
6990 	ret = regmap_read(priv->regmap, MLXPLAT_CPLD_LPC_REG_RESET_GP1_OFFSET, &regval);  in mlxplat_reboot_notifier()
6993 		regmap_write(priv->regmap, MLXPLAT_CPLD_LPC_REG_RESET_GP1_OFFSET,  in mlxplat_reboot_notifier()
7010 	regmap_write(priv->regmap, MLXPLAT_CPLD_LPC_REG_GP1_OFFSET, MLXPLAT_CPLD_HALT_MASK);  in mlxplat_poweroff()
7016 	mlxplat_dev = platform_device_register_simple(MLX_PLAT_DEVICE_NAME, -1,  in mlxplat_register_platform_device()
7038 	mlxplat_hotplug->deferred_nr =  in mlxplat_dmi_default_matched()
7039 		mlxplat_default_channels[i - 1][MLXPLAT_CPLD_GRP_CHNL_NUM - 1];  in mlxplat_dmi_default_matched()
7061 	mlxplat_hotplug->deferred_nr =  in mlxplat_dmi_default_wc_matched()
7062 		mlxplat_default_channels[i - 1][MLXPLAT_CPLD_GRP_CHNL_NUM - 1];  in mlxplat_dmi_default_wc_matched()
7084 	mlxplat_hotplug->deferred_nr =  in mlxplat_dmi_default_eth_wc_blade_matched()
7085 		mlxplat_msn21xx_channels[MLXPLAT_CPLD_GRP_CHNL_NUM - 1];  in mlxplat_dmi_default_eth_wc_blade_matched()
7109 	mlxplat_hotplug->deferred_nr =  in mlxplat_dmi_msn21xx_matched()
7110 		mlxplat_msn21xx_channels[MLXPLAT_CPLD_GRP_CHNL_NUM - 1];  in mlxplat_dmi_msn21xx_matched()
7132 	mlxplat_hotplug->deferred_nr =  in mlxplat_dmi_msn274x_matched()
7133 		mlxplat_msn21xx_channels[MLXPLAT_CPLD_GRP_CHNL_NUM - 1];  in mlxplat_dmi_msn274x_matched()
7155 	mlxplat_hotplug->deferred_nr =  in mlxplat_dmi_msn201x_matched()
7156 		mlxplat_default_channels[i - 1][MLXPLAT_CPLD_GRP_CHNL_NUM - 1];  in mlxplat_dmi_msn201x_matched()
7178 	mlxplat_hotplug->deferred_nr =  in mlxplat_dmi_qmb7xx_matched()
7179 		mlxplat_msn21xx_channels[MLXPLAT_CPLD_GRP_CHNL_NUM - 1];  in mlxplat_dmi_qmb7xx_matched()
7204 	mlxplat_hotplug->deferred_nr = MLXPLAT_CPLD_MAX_PHYS_EXT_ADAPTER_NUM;  in mlxplat_dmi_comex_matched()
7229 	mlxplat_hotplug->deferred_nr =  in mlxplat_dmi_ng400_matched()
7230 		mlxplat_msn21xx_channels[MLXPLAT_CPLD_GRP_CHNL_NUM - 1];  in mlxplat_dmi_ng400_matched()
7250 	mlxplat_hotplug->deferred_nr = MLXPLAT_CPLD_CH4_ETH_MODULAR;  in mlxplat_dmi_modular_matched()
7270 	mlxplat_hotplug->deferred_nr =  in mlxplat_dmi_chassis_blade_matched()
7271 		mlxplat_msn21xx_channels[MLXPLAT_CPLD_GRP_CHNL_NUM - 1];  in mlxplat_dmi_chassis_blade_matched()
7292 	mlxplat_hotplug->deferred_nr =  in mlxplat_dmi_rack_switch_matched()
7293 		mlxplat_msn21xx_channels[MLXPLAT_CPLD_GRP_CHNL_NUM - 1];  in mlxplat_dmi_rack_switch_matched()
7313 	mlxplat_hotplug->deferred_nr =  in mlxplat_dmi_ng800_matched()
7314 		mlxplat_msn21xx_channels[MLXPLAT_CPLD_GRP_CHNL_NUM - 1];  in mlxplat_dmi_ng800_matched()
7334 	mlxplat_hotplug->deferred_nr =  in mlxplat_dmi_l1_switch_matched()
7335 		mlxplat_msn21xx_channels[MLXPLAT_CPLD_GRP_CHNL_NUM - 1];  in mlxplat_dmi_l1_switch_matched()
7357 	mlxplat_hotplug->deferred_nr =  in mlxplat_dmi_smart_switch_matched()
7358 		mlxplat_msn21xx_channels[MLXPLAT_CPLD_GRP_CHNL_NUM - 1];  in mlxplat_dmi_smart_switch_matched()
7382 	mlxplat_hotplug->deferred_nr =  in mlxplat_dmi_ng400_hi171_matched()
7383 		mlxplat_msn21xx_channels[MLXPLAT_CPLD_GRP_CHNL_NUM - 1];  in mlxplat_dmi_ng400_hi171_matched()
7616 		return -ENODEV;  in mlxplat_mlxcpld_verify_bus_topology()
7621 		shift = *nr - mlxplat_mux_data[i].parent;  in mlxplat_mlxcpld_verify_bus_topology()
7627 		mlxplat_hotplug->shift_nr = shift;  in mlxplat_mlxcpld_verify_bus_topology()
7658 	mlxplat_mlxcpld_regmap_ctx.base = devm_ioport_map(&mlxplat_dev->dev,  in mlxplat_lpc_cpld_device_init()
7661 		err = -ENOMEM;  in mlxplat_lpc_cpld_device_init()
7688 		return -ENODEV;  in mlxplat_pci_fpga_device_init()
7692 		dev_err(&pci_dev->dev, "pci_enable_device failed with error %d\n", err);  in mlxplat_pci_fpga_device_init()
7698 		dev_err(&pci_dev->dev, "pci_request_regions failed with error %d\n", err);  in mlxplat_pci_fpga_device_init()
7702 	err = dma_set_mask_and_coherent(&pci_dev->dev, DMA_BIT_MASK(64));  in mlxplat_pci_fpga_device_init()
7704 		err = dma_set_mask(&pci_dev->dev, DMA_BIT_MASK(32));  in mlxplat_pci_fpga_device_init()
7706 			dev_err(&pci_dev->dev, "dma_set_mask failed with error %d\n", err);  in mlxplat_pci_fpga_device_init()
7713 	pci_mem_addr = devm_ioremap(&pci_dev->dev, pci_resource_start(pci_dev, 0),  in mlxplat_pci_fpga_device_init()
7716 		dev_err(&mlxplat_dev->dev, "ioremap failed\n");  in mlxplat_pci_fpga_device_init()
7717 		err = -EIO;  in mlxplat_pci_fpga_device_init()
7793 	if (err == -ENODEV)  in mlxplat_logicdev_init()
7813 		mlxplat_hotplug->regmap = priv->regmap;  in mlxplat_platdevs_init()
7814 		if (priv->irq_fpga)  in mlxplat_platdevs_init()
7815 			mlxplat_hotplug->irq = priv->irq_fpga;  in mlxplat_platdevs_init()
7816 		priv->pdev_hotplug =  in mlxplat_platdevs_init()
7817 		platform_device_register_resndata(&mlxplat_dev->dev,  in mlxplat_platdevs_init()
7818 						  "mlxreg-hotplug", PLATFORM_DEVID_NONE,  in mlxplat_platdevs_init()
7819 						  priv->hotplug_resources,  in mlxplat_platdevs_init()
7820 						  priv->hotplug_resources_size,  in mlxplat_platdevs_init()
7822 		if (IS_ERR(priv->pdev_hotplug)) {  in mlxplat_platdevs_init()
7823 			err = PTR_ERR(priv->pdev_hotplug);  in mlxplat_platdevs_init()
7830 		mlxplat_led->regmap = priv->regmap;  in mlxplat_platdevs_init()
7831 		priv->pdev_led =  in mlxplat_platdevs_init()
7832 		platform_device_register_resndata(&mlxplat_dev->dev, "leds-mlxreg",  in mlxplat_platdevs_init()
7835 		if (IS_ERR(priv->pdev_led)) {  in mlxplat_platdevs_init()
7836 			err = PTR_ERR(priv->pdev_led);  in mlxplat_platdevs_init()
7843 		mlxplat_regs_io->regmap = priv->regmap;  in mlxplat_platdevs_init()
7844 		priv->pdev_io_regs = platform_device_register_resndata(&mlxplat_dev->dev,  in mlxplat_platdevs_init()
7845 								       "mlxreg-io",  in mlxplat_platdevs_init()
7849 		if (IS_ERR(priv->pdev_io_regs)) {  in mlxplat_platdevs_init()
7850 			err = PTR_ERR(priv->pdev_io_regs);  in mlxplat_platdevs_init()
7857 		mlxplat_fan->regmap = priv->regmap;  in mlxplat_platdevs_init()
7858 		priv->pdev_fan = platform_device_register_resndata(&mlxplat_dev->dev, "mlxreg-fan",  in mlxplat_platdevs_init()
7862 		if (IS_ERR(priv->pdev_fan)) {  in mlxplat_platdevs_init()
7863 			err = PTR_ERR(priv->pdev_fan);  in mlxplat_platdevs_init()
7869 	err = mlxplat_mlxcpld_check_wd_capability(priv->regmap);  in mlxplat_platdevs_init()
7874 			mlxplat_wd_data[i]->regmap = priv->regmap;  in mlxplat_platdevs_init()
7875 			priv->pdev_wd[i] =  in mlxplat_platdevs_init()
7876 				platform_device_register_resndata(&mlxplat_dev->dev, "mlx-wdt", i,  in mlxplat_platdevs_init()
7879 			if (IS_ERR(priv->pdev_wd[i])) {  in mlxplat_platdevs_init()
7880 				err = PTR_ERR(priv->pdev_wd[i]);  in mlxplat_platdevs_init()
7890 		priv->pdev_dpu[i] =  in mlxplat_platdevs_init()
7891 				platform_device_register_resndata(&mlxplat_dev->dev, "mlxreg-dpu",  in mlxplat_platdevs_init()
7894 		if (IS_ERR(priv->pdev_dpu[i])) {  in mlxplat_platdevs_init()
7895 			err = PTR_ERR(priv->pdev_dpu[i]);  in mlxplat_platdevs_init()
7903 	while (i--)  in mlxplat_platdevs_init()
7904 		platform_device_unregister(priv->pdev_dpu[i]);  in mlxplat_platdevs_init()
7906 	while (i--)  in mlxplat_platdevs_init()
7907 		platform_device_unregister(priv->pdev_wd[i]);  in mlxplat_platdevs_init()
7910 		platform_device_unregister(priv->pdev_io_regs);  in mlxplat_platdevs_init()
7913 		platform_device_unregister(priv->pdev_led);  in mlxplat_platdevs_init()
7916 		platform_device_unregister(priv->pdev_hotplug);  in mlxplat_platdevs_init()
7925 	for (i = MLXPLAT_CPLD_DPU_MAX_DEVS - 1; i >= 0; i--)  in mlxplat_platdevs_exit()
7926 		platform_device_unregister(priv->pdev_dpu[i]);  in mlxplat_platdevs_exit()
7927 	for (i = MLXPLAT_CPLD_WD_MAX_DEVS - 1; i >= 0; i--)  in mlxplat_platdevs_exit()
7928 		platform_device_unregister(priv->pdev_wd[i]);  in mlxplat_platdevs_exit()
7929 	if (priv->pdev_fan)  in mlxplat_platdevs_exit()
7930 		platform_device_unregister(priv->pdev_fan);  in mlxplat_platdevs_exit()
7931 	if (priv->pdev_io_regs)  in mlxplat_platdevs_exit()
7932 		platform_device_unregister(priv->pdev_io_regs);  in mlxplat_platdevs_exit()
7933 	if (priv->pdev_led)  in mlxplat_platdevs_exit()
7934 		platform_device_unregister(priv->pdev_led);  in mlxplat_platdevs_exit()
7935 	if (priv->pdev_hotplug)  in mlxplat_platdevs_exit()
7936 		platform_device_unregister(priv->pdev_hotplug);  in mlxplat_platdevs_exit()
7952 	if (!priv->pdev_i2c) {  in mlxplat_i2c_mux_topology_init()
7953 		priv->i2c_main_init_status = MLXPLAT_I2C_MAIN_BUS_NOTIFIED;  in mlxplat_i2c_mux_topology_init()
7957 	priv->i2c_main_init_status = MLXPLAT_I2C_MAIN_BUS_HANDLE_CREATED;  in mlxplat_i2c_mux_topology_init()
7959 		priv->pdev_mux[i] = platform_device_register_resndata(&priv->pdev_i2c->dev,  in mlxplat_i2c_mux_topology_init()
7960 								      "i2c-mux-reg", i, NULL, 0,  in mlxplat_i2c_mux_topology_init()
7963 		if (IS_ERR(priv->pdev_mux[i])) {  in mlxplat_i2c_mux_topology_init()
7964 			err = PTR_ERR(priv->pdev_mux[i]);  in mlxplat_i2c_mux_topology_init()
7972 	while (i--)  in mlxplat_i2c_mux_topology_init()
7973 		platform_device_unregister(priv->pdev_mux[i]);  in mlxplat_i2c_mux_topology_init()
7981 	for (i = mlxplat_mux_num - 1; i >= 0; i--) {  in mlxplat_i2c_mux_topology_exit()
7982 		if (priv->pdev_mux[i])  in mlxplat_i2c_mux_topology_exit()
7983 			platform_device_unregister(priv->pdev_mux[i]);  in mlxplat_i2c_mux_topology_exit()
8005 	nr = (nr == mlxplat_max_adap_num) ? -1 : nr;  in mlxplat_i2c_main_init()
8006 	mlxplat_i2c->regmap = priv->regmap;  in mlxplat_i2c_main_init()
8007 	mlxplat_i2c->handle = priv;  in mlxplat_i2c_main_init()
8009 	/* Set mapped base address of I2C-LPC bridge over PCIe */  in mlxplat_i2c_main_init()
8011 		mlxplat_i2c->addr = i2c_bridge_addr;  in mlxplat_i2c_main_init()
8012 	priv->pdev_i2c = platform_device_register_resndata(&mlxplat_dev->dev, "i2c_mlxcpld",  in mlxplat_i2c_main_init()
8013 							   nr, priv->hotplug_resources,  in mlxplat_i2c_main_init()
8014 							   priv->hotplug_resources_size,  in mlxplat_i2c_main_init()
8016 	if (IS_ERR(priv->pdev_i2c)) {  in mlxplat_i2c_main_init()
8017 		err = PTR_ERR(priv->pdev_i2c);  in mlxplat_i2c_main_init()
8021 	if (priv->i2c_main_init_status == MLXPLAT_I2C_MAIN_BUS_NOTIFIED) {  in mlxplat_i2c_main_init()
8030 	platform_device_unregister(priv->pdev_i2c);  in mlxplat_i2c_main_init()
8040 	if (priv->pdev_i2c)  in mlxplat_i2c_main_exit()
8041 		platform_device_unregister(priv->pdev_i2c);  in mlxplat_i2c_main_exit()
8052 	acpi_dev = ACPI_COMPANION(&pdev->dev);  in mlxplat_probe()
8056 			return -ENODEV;  in mlxplat_probe()
8064 	priv = devm_kzalloc(&mlxplat_dev->dev, sizeof(struct mlxplat_priv),  in mlxplat_probe()
8067 		err = -ENOMEM;  in mlxplat_probe()
8071 	priv->hotplug_resources = hotplug_resources;  in mlxplat_probe()
8072 	priv->hotplug_resources_size = hotplug_resources_size;  in mlxplat_probe()
8073 	priv->irq_fpga = irq_fpga;  in mlxplat_probe()
8078 	priv->regmap = devm_regmap_init(&mlxplat_dev->dev, NULL,  in mlxplat_probe()
8081 	if (IS_ERR(priv->regmap)) {  in mlxplat_probe()
8082 		err = PTR_ERR(priv->regmap);  in mlxplat_probe()
8087 	for (i = 0; i < mlxplat_regmap_config->num_reg_defaults; i++) {  in mlxplat_probe()
8088 		err = regmap_write(priv->regmap,  in mlxplat_probe()
8089 				   mlxplat_regmap_config->reg_defaults[i].reg,  in mlxplat_probe()
8090 				   mlxplat_regmap_config->reg_defaults[i].def);  in mlxplat_probe()
8100 	regcache_mark_dirty(priv->regmap);  in mlxplat_probe()
8101 	err = regcache_sync(priv->regmap);  in mlxplat_probe()
8157 		return -ENODEV;  in mlxplat_init()