xref: /openbmc/u-boot/board/LaCie/netspace_v2/netspace_v2.c (revision 0f3864a966cc88ac90d8e403aa634254657d874d)
1 /*
2  * Copyright (C) 2011 Simon Guinot <sguinot@lacie.com>
3  *
4  * Based on Kirkwood support:
5  * (C) Copyright 2009
6  * Marvell Semiconductor <www.marvell.com>
7  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
8  *
9  * See file CREDITS for list of people who contributed to this
10  * project.
11  *
12  * This program is free software; you can redistribute it and/or
13  * modify it under the terms of the GNU General Public License as
14  * published by the Free Software Foundation; either version 2 of
15  * the License, or (at your option) any later version.
16  *
17  * This program is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20  * GNU General Public License for more details.
21  */
22 
23 #include <common.h>
24 #include <miiphy.h>
25 #include <netdev.h>
26 #include <command.h>
27 #include <asm/arch/cpu.h>
28 #include <asm/arch/kirkwood.h>
29 #include <asm/arch/mpp.h>
30 #include <asm/arch/gpio.h>
31 #include "netspace_v2.h"
32 
33 DECLARE_GLOBAL_DATA_PTR;
34 
35 int board_early_init_f(void)
36 {
37 	/* Gpio configuration */
38 	kw_config_gpio(NETSPACE_V2_OE_VAL_LOW, NETSPACE_V2_OE_VAL_HIGH,
39 			NETSPACE_V2_OE_LOW, NETSPACE_V2_OE_HIGH);
40 
41 	/* Multi-Purpose Pins Functionality configuration */
42 	u32 kwmpp_config[] = {
43 		MPP0_SPI_SCn,
44 		MPP1_SPI_MOSI,
45 		MPP2_SPI_SCK,
46 		MPP3_SPI_MISO,
47 		MPP4_NF_IO6,
48 		MPP5_NF_IO7,
49 		MPP6_SYSRST_OUTn,
50 		MPP7_GPO,		/* Fan speed (bit 1) */
51 		MPP8_TW_SDA,
52 		MPP9_TW_SCK,
53 		MPP10_UART0_TXD,
54 		MPP11_UART0_RXD,
55 		MPP12_GPO,		/* Red led */
56 		MPP14_GPIO,		/* USB fuse */
57 		MPP16_GPIO,		/* SATA 0 power */
58 		MPP17_GPIO,		/* SATA 1 power */
59 		MPP18_NF_IO0,
60 		MPP19_NF_IO1,
61 		MPP20_SATA1_ACTn,
62 		MPP21_SATA0_ACTn,
63 		MPP22_GPIO,		/* Fan speed (bit 0) */
64 		MPP23_GPIO,		/* Fan power */
65 		MPP24_GPIO,		/* USB mode select */
66 		MPP25_GPIO,		/* Fan rotation fail */
67 		MPP26_GPIO,		/* USB vbus-in detection */
68 		MPP28_GPIO,		/* USB enable vbus-out */
69 		MPP29_GPIO,		/* Blue led (slow register) */
70 		MPP30_GPIO,		/* Blue led (command register) */
71 		MPP31_GPIO,		/* Board power off */
72 		MPP32_GPIO,		/* Button (0 = Released, 1 = Pushed) */
73 		MPP33_GPIO,		/* Fan speed (bit 2) */
74 		0
75 	};
76 	kirkwood_mpp_conf(kwmpp_config);
77 
78 	return 0;
79 }
80 
81 int board_init(void)
82 {
83 	/* Machine number */
84 	gd->bd->bi_arch_number = CONFIG_MACH_TYPE;
85 
86 	/* Boot parameters address */
87 	gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100;
88 
89 	return 0;
90 }
91 
92 void mv_phy_88e1116_init(char *name)
93 {
94 	u16 reg;
95 	u16 devadr;
96 
97 	if (miiphy_set_current_dev(name))
98 		return;
99 
100 	/* command to read PHY dev address */
101 	if (miiphy_read(name, 0xEE, 0xEE, (u16 *) &devadr)) {
102 		printf("Err..(%s) could not read PHY dev address\n", __func__);
103 		return;
104 	}
105 
106 	/*
107 	 * Enable RGMII delay on Tx and Rx for CPU port
108 	 * Ref: sec 4.7.2 of chip datasheet
109 	 */
110 	miiphy_write(name, devadr, MV88E1116_PGADR_REG, 2);
111 	miiphy_read(name, devadr, MV88E1116_MAC_CTRL_REG, &reg);
112 	reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
113 	miiphy_write(name, devadr, MV88E1116_MAC_CTRL_REG, reg);
114 	miiphy_write(name, devadr, MV88E1116_PGADR_REG, 0);
115 
116 	/* reset the phy */
117 	if (miiphy_read(name, devadr, MII_BMCR, &reg) != 0) {
118 		printf("Err..(%s) PHY status read failed\n", __func__);
119 		return;
120 	}
121 	if (miiphy_write(name, devadr, MII_BMCR, reg | 0x8000) != 0) {
122 		printf("Err..(%s) PHY reset failed\n", __func__);
123 		return;
124 	}
125 
126 	debug("88E1116 Initialized on %s\n", name);
127 }
128 
129 /* Configure and initialize PHY */
130 void reset_phy(void)
131 {
132 	mv_phy_88e1116_init("egiga0");
133 }
134 
135 /* Return GPIO button status */
136 static int
137 do_read_button(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
138 {
139 	return kw_gpio_get_value(NETSPACE_V2_GPIO_BUTTON);
140 }
141 
142 U_BOOT_CMD(button, 1, 1, do_read_button,
143 	   "Return GPIO button status 0=off 1=on", "");
144