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2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87 
 kernel/arch/arm/mach-davinci/board-da850-evm.c
....@@ -1,7 +1,7 @@
11 /*
22  * TI DA850/OMAP-L138 EVM board
33  *
4
- * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
4
+ * Copyright (C) 2009 Texas Instruments Incorporated - https://www.ti.com/
55  *
66  * Derived from: arch/arm/mach-davinci/board-da830-evm.c
77  * Original Copyrights follow:
....@@ -20,7 +20,6 @@
2020 #include <linux/kernel.h>
2121 #include <linux/leds.h>
2222 #include <linux/i2c.h>
23
-#include <linux/platform_data/at24.h>
2423 #include <linux/platform_data/pca953x.h>
2524 #include <linux/input.h>
2625 #include <linux/input/tps6507x-ts.h>
....@@ -28,6 +27,7 @@
2827 #include <linux/mtd/mtd.h>
2928 #include <linux/mtd/rawnand.h>
3029 #include <linux/mtd/partitions.h>
30
+#include <linux/nvmem-provider.h>
3131 #include <linux/mtd/physmap.h>
3232 #include <linux/platform_device.h>
3333 #include <linux/platform_data/gpio-davinci.h>
....@@ -36,6 +36,7 @@
3636 #include <linux/platform_data/ti-aemif.h>
3737 #include <linux/platform_data/spi-davinci.h>
3838 #include <linux/platform_data/uio_pruss.h>
39
+#include <linux/property.h>
3940 #include <linux/regulator/machine.h>
4041 #include <linux/regulator/tps6507x.h>
4142 #include <linux/regulator/fixed.h>
....@@ -43,9 +44,10 @@
4344 #include <linux/spi/flash.h>
4445 
4546 #include <mach/common.h>
46
-#include "cp_intc.h"
4747 #include <mach/da8xx.h>
4848 #include <mach/mux.h>
49
+
50
+#include "irqs.h"
4951 #include "sram.h"
5052 
5153 #include <asm/mach-types.h>
....@@ -100,6 +102,31 @@
100102 	},
101103 };
102104 
105
+static struct nvmem_cell_info da850evm_nvmem_cells[] = {
106
+	{
107
+		.name		= "macaddr",
108
+		.offset		= 0x0,
109
+		.bytes		= ETH_ALEN,
110
+	}
111
+};
112
+
113
+static struct nvmem_cell_table da850evm_nvmem_cell_table = {
114
+	/*
115
+	 * The nvmem name differs from the partition name because of the
116
+	 * internal works of the nvmem framework.
117
+	 */
118
+	.nvmem_name	= "MAC-Address0",
119
+	.cells		= da850evm_nvmem_cells,
120
+	.ncells		= ARRAY_SIZE(da850evm_nvmem_cells),
121
+};
122
+
123
+static struct nvmem_cell_lookup da850evm_nvmem_cell_lookup = {
124
+	.nvmem_name	= "MAC-Address0",
125
+	.cell_name	= "macaddr",
126
+	.dev_id		= "davinci_emac.1",
127
+	.con_id		= "mac-address",
128
+};
129
+
103130 static struct flash_platform_data da850evm_spiflash_data = {
104131 	.name		= "m25p80",
105132 	.parts		= da850evm_spiflash_part,
....@@ -124,32 +151,6 @@
124151 		.chip_select		= 0,
125152 	},
126153 };
127
-
128
-#ifdef CONFIG_MTD
129
-static void da850_evm_m25p80_notify_add(struct mtd_info *mtd)
130
-{
131
-	char *mac_addr = davinci_soc_info.emac_pdata->mac_addr;
132
-	size_t retlen;
133
-
134
-	if (!strcmp(mtd->name, "MAC-Address")) {
135
-		mtd_read(mtd, 0, ETH_ALEN, &retlen, mac_addr);
136
-		if (retlen == ETH_ALEN)
137
-			pr_info("Read MAC addr from SPI Flash: %pM\n",
138
-				mac_addr);
139
-	}
140
-}
141
-
142
-static struct mtd_notifier da850evm_spi_notifier = {
143
-	.add	= da850_evm_m25p80_notify_add,
144
-};
145
-
146
-static void da850_evm_setup_mac_addr(void)
147
-{
148
-	register_mtd_user(&da850evm_spi_notifier);
149
-}
150
-#else
151
-static void da850_evm_setup_mac_addr(void) { }
152
-#endif
153154 
154155 static struct mtd_partition da850_evm_norflash_partition[] = {
155156 	{
....@@ -238,7 +239,7 @@
238239 	.core_chipsel	= 1,
239240 	.parts		= da850_evm_nandflash_partition,
240241 	.nr_parts	= ARRAY_SIZE(da850_evm_nandflash_partition),
241
-	.ecc_mode	= NAND_ECC_HW,
242
+	.engine_type	= NAND_ECC_ENGINE_TYPE_ON_HOST,
242243 	.ecc_bits	= 4,
243244 	.bbt_options	= NAND_BBT_USE_FLASH,
244245 	.timing		= &da850_evm_nandflash_timing,
....@@ -631,19 +632,32 @@
631632 	}
632633 }
633634 
634
-#define DA850_N_BB_USER_LED	2
635
-
636635 static struct gpio_led da850_evm_bb_leds[] = {
637
-	[0 ... DA850_N_BB_USER_LED - 1] = {
638
-		.active_low = 1,
639
-		.gpio = -1, /* assigned at runtime */
640
-		.name = NULL, /* assigned at runtime */
636
+	{
637
+		.name = "user_led2",
638
+	},
639
+	{
640
+		.name = "user_led1",
641641 	},
642642 };
643643 
644644 static struct gpio_led_platform_data da850_evm_bb_leds_pdata = {
645645 	.leds = da850_evm_bb_leds,
646646 	.num_leds = ARRAY_SIZE(da850_evm_bb_leds),
647
+};
648
+
649
+static struct gpiod_lookup_table da850_evm_bb_leds_gpio_table = {
650
+	.dev_id = "leds-gpio",
651
+	.table = {
652
+		GPIO_LOOKUP_IDX("i2c-bb-expander",
653
+				DA850_EVM_BB_EXP_USER_LED2, NULL,
654
+				0, GPIO_ACTIVE_LOW),
655
+		GPIO_LOOKUP_IDX("i2c-bb-expander",
656
+				DA850_EVM_BB_EXP_USER_LED2 + 1, NULL,
657
+				1, GPIO_ACTIVE_LOW),
658
+
659
+		{ },
660
+	},
647661 };
648662 
649663 static struct platform_device da850_evm_bb_leds_device = {
....@@ -653,20 +667,6 @@
653667 		.platform_data = &da850_evm_bb_leds_pdata
654668 	}
655669 };
656
-
657
-static void da850_evm_bb_leds_init(unsigned gpio)
658
-{
659
-	int i;
660
-	struct gpio_led *led;
661
-
662
-	for (i = 0; i < DA850_N_BB_USER_LED; i++) {
663
-		led = &da850_evm_bb_leds[i];
664
-
665
-		led->gpio = gpio + DA850_EVM_BB_EXP_USER_LED2 + i;
666
-		led->name =
667
-			da850_evm_bb_exp[DA850_EVM_BB_EXP_USER_LED2 + i];
668
-	}
669
-}
670670 
671671 static int da850_evm_bb_expander_setup(struct i2c_client *client,
672672 						unsigned gpio, unsigned ngpio,
....@@ -685,7 +685,7 @@
685685 		goto io_exp_setup_sw_fail;
686686 	}
687687 
688
-	da850_evm_bb_leds_init(gpio);
688
+	gpiod_add_lookup_table(&da850_evm_bb_leds_gpio_table);
689689 	ret = platform_device_register(&da850_evm_bb_leds_device);
690690 	if (ret) {
691691 		pr_warn("Could not register baseboard GPIO expander LEDs");
....@@ -729,10 +729,12 @@
729729 	},
730730 	{
731731 		I2C_BOARD_INFO("tca6416", 0x20),
732
+		.dev_name = "ui-expander",
732733 		.platform_data = &da850_evm_ui_expander_info,
733734 	},
734735 	{
735736 		I2C_BOARD_INFO("tca6416", 0x21),
737
+		.dev_name = "bb-expander",
736738 		.platform_data = &da850_evm_bb_expander_info,
737739 	},
738740 };
....@@ -780,10 +782,11 @@
780782 	.dev_id = "da830-mmc.0",
781783 	.table = {
782784 		/* gpio chip 2 contains gpio range 64-95 */
783
-		GPIO_LOOKUP("davinci_gpio.0", DA850_MMCSD_CD_PIN, "cd",
785
+		GPIO_LOOKUP("davinci_gpio", DA850_MMCSD_CD_PIN, "cd",
784786 			    GPIO_ACTIVE_LOW),
785
-		GPIO_LOOKUP("davinci_gpio.0", DA850_MMCSD_WP_PIN, "wp",
787
+		GPIO_LOOKUP("davinci_gpio", DA850_MMCSD_WP_PIN, "wp",
786788 			    GPIO_ACTIVE_HIGH),
789
+		{ }
787790 	},
788791 };
789792 
....@@ -800,37 +803,79 @@
800803 	-1
801804 };
802805 
803
-static void da850_panel_power_ctrl(int val)
804
-{
805
-	/* lcd backlight */
806
-	gpio_set_value(DA850_LCD_BL_PIN, val);
806
+static struct property_entry da850_lcd_backlight_props[] = {
807
+	PROPERTY_ENTRY_BOOL("default-on"),
808
+	{ }
809
+};
807810 
808
-	/* lcd power */
809
-	gpio_set_value(DA850_LCD_PWR_PIN, val);
810
-}
811
+static struct gpiod_lookup_table da850_lcd_backlight_gpio_table = {
812
+	.dev_id		= "gpio-backlight",
813
+	.table = {
814
+		GPIO_LOOKUP("davinci_gpio", DA850_LCD_BL_PIN, NULL, 0),
815
+		{ }
816
+	},
817
+};
818
+
819
+static const struct platform_device_info da850_lcd_backlight_info = {
820
+	.name		= "gpio-backlight",
821
+	.id		= PLATFORM_DEVID_NONE,
822
+	.properties	= da850_lcd_backlight_props,
823
+};
824
+
825
+static struct regulator_consumer_supply da850_lcd_supplies[] = {
826
+	REGULATOR_SUPPLY("lcd", NULL),
827
+};
828
+
829
+static struct regulator_init_data da850_lcd_supply_data = {
830
+	.consumer_supplies	= da850_lcd_supplies,
831
+	.num_consumer_supplies	= ARRAY_SIZE(da850_lcd_supplies),
832
+	.constraints    = {
833
+		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
834
+	},
835
+};
836
+
837
+static struct fixed_voltage_config da850_lcd_supply = {
838
+	.supply_name		= "lcd",
839
+	.microvolts		= 33000000,
840
+	.init_data		= &da850_lcd_supply_data,
841
+};
842
+
843
+static struct platform_device da850_lcd_supply_device = {
844
+	.name			= "reg-fixed-voltage",
845
+	.id			= 1, /* Dummy fixed regulator is 0 */
846
+	.dev			= {
847
+		.platform_data = &da850_lcd_supply,
848
+	},
849
+};
850
+
851
+static struct gpiod_lookup_table da850_lcd_supply_gpio_table = {
852
+	.dev_id			= "reg-fixed-voltage.1",
853
+	.table = {
854
+		GPIO_LOOKUP("davinci_gpio", DA850_LCD_PWR_PIN, NULL, 0),
855
+		{ }
856
+	},
857
+};
858
+
859
+static struct gpiod_lookup_table *da850_lcd_gpio_lookups[] = {
860
+	&da850_lcd_backlight_gpio_table,
861
+	&da850_lcd_supply_gpio_table,
862
+};
811863 
812864 static int da850_lcd_hw_init(void)
813865 {
866
+	struct platform_device *backlight;
814867 	int status;
815868 
816
-	status = gpio_request(DA850_LCD_BL_PIN, "lcd bl");
817
-	if (status < 0)
869
+	gpiod_add_lookup_tables(da850_lcd_gpio_lookups,
870
+				ARRAY_SIZE(da850_lcd_gpio_lookups));
871
+
872
+	backlight = platform_device_register_full(&da850_lcd_backlight_info);
873
+	if (IS_ERR(backlight))
874
+		return PTR_ERR(backlight);
875
+
876
+	status = platform_device_register(&da850_lcd_supply_device);
877
+	if (status)
818878 		return status;
819
-
820
-	status = gpio_request(DA850_LCD_PWR_PIN, "lcd pwr");
821
-	if (status < 0) {
822
-		gpio_free(DA850_LCD_BL_PIN);
823
-		return status;
824
-	}
825
-
826
-	gpio_direction_output(DA850_LCD_BL_PIN, 0);
827
-	gpio_direction_output(DA850_LCD_PWR_PIN, 0);
828
-
829
-	/* Switch off panel power and backlight */
830
-	da850_panel_power_ctrl(0);
831
-
832
-	/* Switch on panel power and backlight */
833
-	da850_panel_power_ctrl(1);
834879 
835880 	return 0;
836881 }
....@@ -1039,16 +1084,29 @@
10391084 	-1
10401085 };
10411086 
1087
+static struct gpiod_hog da850_evm_emac_gpio_hogs[] = {
1088
+	{
1089
+		.chip_label	= "davinci_gpio",
1090
+		.chip_hwnum	= DA850_MII_MDIO_CLKEN_PIN,
1091
+		.line_name	= "mdio_clk_en",
1092
+		.lflags		= 0,
1093
+		/* dflags set in da850_evm_config_emac() */
1094
+	},
1095
+	{ }
1096
+};
1097
+
10421098 static int __init da850_evm_config_emac(void)
10431099 {
10441100 	void __iomem *cfg_chip3_base;
10451101 	int ret;
10461102 	u32 val;
10471103 	struct davinci_soc_info *soc_info = &davinci_soc_info;
1048
-	u8 rmii_en = soc_info->emac_pdata->rmii_en;
1104
+	u8 rmii_en;
10491105 
10501106 	if (!machine_is_davinci_da850_evm())
10511107 		return 0;
1108
+
1109
+	rmii_en = soc_info->emac_pdata->rmii_en;
10521110 
10531111 	cfg_chip3_base = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);
10541112 
....@@ -1077,14 +1135,9 @@
10771135 	if (ret)
10781136 		pr_warn("%s:GPIO(2,6) mux setup failed\n", __func__);
10791137 
1080
-	ret = gpio_request(DA850_MII_MDIO_CLKEN_PIN, "mdio_clk_en");
1081
-	if (ret) {
1082
-		pr_warn("Cannot open GPIO %d\n", DA850_MII_MDIO_CLKEN_PIN);
1083
-		return ret;
1084
-	}
1085
-
1086
-	/* Enable/Disable MII MDIO clock */
1087
-	gpio_direction_output(DA850_MII_MDIO_CLKEN_PIN, rmii_en);
1138
+	da850_evm_emac_gpio_hogs[0].dflags = rmii_en ? GPIOD_OUT_HIGH
1139
+						     : GPIOD_OUT_LOW;
1140
+	gpiod_add_hogs(da850_evm_emac_gpio_hogs);
10881141 
10891142 	soc_info->emac_pdata->phy_id = DA850_EVM_PHY_ID;
10901143 
....@@ -1395,6 +1448,9 @@
13951448 
13961449 	davinci_serial_init(da8xx_serial_device);
13971450 
1451
+	nvmem_add_cell_table(&da850evm_nvmem_cell_table);
1452
+	nvmem_add_cell_lookups(&da850evm_nvmem_cell_lookup, 1);
1453
+
13981454 	i2c_register_board_info(1, da850_evm_i2c_devices,
13991455 			ARRAY_SIZE(da850_evm_i2c_devices));
14001456 
....@@ -1432,7 +1488,6 @@
14321488 	if (ret)
14331489 		pr_warn("%s: LCD initialization failed: %d\n", __func__, ret);
14341490 
1435
-	sharp_lk043t1dg01_pdata.panel_power_ctrl = da850_panel_power_ctrl,
14361491 	ret = da8xx_register_lcdc(&sharp_lk043t1dg01_pdata);
14371492 	if (ret)
14381493 		pr_warn("%s: LCDC registration failed: %d\n", __func__, ret);
....@@ -1466,8 +1521,6 @@
14661521 	if (ret)
14671522 		pr_warn("%s: SATA registration failed: %d\n", __func__, ret);
14681523 
1469
-	da850_evm_setup_mac_addr();
1470
-
14711524 	ret = da8xx_register_rproc();
14721525 	if (ret)
14731526 		pr_warn("%s: dsp/rproc registration failed: %d\n",
....@@ -1495,7 +1548,7 @@
14951548 MACHINE_START(DAVINCI_DA850_EVM, "DaVinci DA850/OMAP-L138/AM18x EVM")
14961549 	.atag_offset	= 0x100,
14971550 	.map_io		= da850_evm_map_io,
1498
-	.init_irq	= cp_intc_init,
1551
+	.init_irq	= da850_init_irq,
14991552 	.init_time	= da850_init_time,
15001553 	.init_machine	= da850_evm_init,
15011554 	.init_late	= davinci_init_late,