1 /*
2  * Copyright (C) 2013 Suriyan Ramasami <suriyan.r@gmail.com>
3  *
4  * Based on dockstar.c originally written by
5  * Copyright (C) 2010  Eric C. Cooper <ecc@cmu.edu>
6  *
7  * Based on sheevaplug.c originally written by
8  * Prafulla Wadaskar <prafulla@marvell.com>
9  * (C) Copyright 2009
10  * Marvell Semiconductor <www.marvell.com>
11  *
12  * SPDX-License-Identifier:	GPL-2.0+
13  */
14 
15 #include <common.h>
16 #include <miiphy.h>
17 #include <asm/arch/kirkwood.h>
18 #include <asm/arch/mpp.h>
19 #include <asm/arch/cpu.h>
20 #include <asm/io.h>
21 
22 DECLARE_GLOBAL_DATA_PTR;
23 
24 int board_early_init_f(void)
25 {
26 	/* Multi-Purpose Pins Functionality configuration */
27 	static const u32 kwmpp_config[] = {
28 		MPP0_NF_IO2,
29 		MPP1_NF_IO3,
30 		MPP2_NF_IO4,
31 		MPP3_NF_IO5,
32 		MPP4_NF_IO6,
33 		MPP5_NF_IO7,
34 		MPP6_SYSRST_OUTn,
35 		MPP7_GPO,
36 		MPP8_UART0_RTS,
37 		MPP9_UART0_CTS,
38 		MPP10_UART0_TXD,
39 		MPP11_UART0_RXD,
40 		MPP12_SD_CLK,
41 		MPP13_SD_CMD,
42 		MPP14_SD_D0,
43 		MPP15_SD_D1,
44 		MPP16_SD_D2,
45 		MPP17_SD_D3,
46 		MPP18_NF_IO0,
47 		MPP19_NF_IO1,
48 		MPP20_GPIO,
49 		MPP21_GPIO,
50 		MPP22_GPIO,
51 		MPP23_GPIO,
52 		MPP24_GPIO,
53 		MPP25_GPIO,
54 		MPP26_GPIO,
55 		MPP27_GPIO,
56 		MPP28_GPIO,
57 		MPP29_TSMP9,
58 		MPP30_GPIO,
59 		MPP31_GPIO,
60 		MPP32_GPIO,
61 		MPP33_GPIO,
62 		MPP34_GPIO,
63 		MPP35_GPIO,
64 		MPP36_GPIO,
65 		MPP37_GPIO,
66 		MPP38_GPIO,
67 		MPP39_GPIO,
68 		MPP40_GPIO,
69 		MPP41_GPIO,
70 		MPP42_GPIO,
71 		MPP43_GPIO,
72 		MPP44_GPIO,
73 		MPP45_GPIO,
74 		MPP46_GPIO,
75 		MPP47_GPIO,
76 		MPP48_GPIO,
77 		MPP49_GPIO,
78 		0
79 	};
80 
81 	/*
82 	 * default gpio configuration
83 	 * There are maximum 64 gpios controlled through 2 sets of registers
84 	 * the  below configuration configures mainly initial LED status
85 	 */
86 	kw_config_gpio(GOFLEXHOME_OE_VAL_LOW,
87 		       GOFLEXHOME_OE_VAL_HIGH,
88 		       GOFLEXHOME_OE_LOW, GOFLEXHOME_OE_HIGH);
89 	kirkwood_mpp_conf(kwmpp_config, NULL);
90 	return 0;
91 }
92 
93 int board_init(void)
94 {
95 	/*
96 	 * arch number of board
97 	 */
98 	gd->bd->bi_arch_number = MACH_TYPE_GOFLEXHOME;
99 
100 	/* address of boot parameters */
101 	gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100;
102 
103 	return 0;
104 }
105 
106 #ifdef CONFIG_RESET_PHY_R
107 /* Configure and enable MV88E1116 PHY */
108 void reset_phy(void)
109 {
110 	u16 reg;
111 	u16 devadr;
112 	char *name = "egiga0";
113 
114 	if (miiphy_set_current_dev(name))
115 		return;
116 
117 	/* command to read PHY dev address */
118 	if (miiphy_read(name, 0xEE, 0xEE, (u16 *)&devadr)) {
119 		printf("Err..%s could not read PHY dev address\n",
120 		       __func__);
121 		return;
122 	}
123 
124 	/*
125 	 * Enable RGMII delay on Tx and Rx for CPU port
126 	 * Ref: sec 4.7.2 of chip datasheet
127 	 */
128 	miiphy_write(name, devadr, MV88E1116_PGADR_REG, 2);
129 	miiphy_read(name, devadr, MV88E1116_MAC_CTRL_REG, &reg);
130 	reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
131 	miiphy_write(name, devadr, MV88E1116_MAC_CTRL_REG, reg);
132 	miiphy_write(name, devadr, MV88E1116_PGADR_REG, 0);
133 
134 	/* reset the phy */
135 	miiphy_reset(name, devadr);
136 
137 	printf("88E1116 Initialized on %s\n", name);
138 }
139 #endif /* CONFIG_RESET_PHY_R */
140 
141 #define GREEN_LED	(1 << 14)
142 #define ORANGE_LED	(1 << 15)
143 #define BOTH_LEDS	(GREEN_LED | ORANGE_LED)
144 #define NEITHER_LED	0
145 
146 static void set_leds(u32 leds, u32 blinking)
147 {
148 	struct kwgpio_registers *r;
149 	u32 oe;
150 	u32 bl;
151 
152 	r = (struct kwgpio_registers *)KW_GPIO1_BASE;
153 	oe = readl(&r->oe) | BOTH_LEDS;
154 	writel(oe & ~leds, &r->oe);	/* active low */
155 	bl = readl(&r->blink_en) & ~BOTH_LEDS;
156 	writel(bl | blinking, &r->blink_en);
157 }
158 
159 void show_boot_progress(int val)
160 {
161 	switch (val) {
162 	case BOOTSTAGE_ID_RUN_OS:		/* booting Linux */
163 		set_leds(BOTH_LEDS, NEITHER_LED);
164 		break;
165 	case BOOTSTAGE_ID_NET_ETH_START:	/* Ethernet initialization */
166 		set_leds(GREEN_LED, GREEN_LED);
167 		break;
168 	default:
169 		if (val < 0)	/* error */
170 			set_leds(ORANGE_LED, ORANGE_LED);
171 		break;
172 	}
173 }
174