1 /*
2  * Copyright (C) 2012
3  * David Purdy <david.c.purdy@gmail.com>
4  *
5  * Based on Kirkwood support:
6  * (C) Copyright 2009
7  * Marvell Semiconductor <www.marvell.com>
8  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
9  *
10  * See file CREDITS for list of people who contributed to this
11  * project.
12  *
13  * This program is free software; you can redistribute it and/or
14  * modify it under the terms of the GNU General Public License as
15  * published by the Free Software Foundation; either version 2 of
16  * the License, or (at your option) any later version.
17  *
18  * This program is distributed in the hope that it will be useful,
19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21  * GNU General Public License for more details.
22  *
23  * You should have received a copy of the GNU General Public License
24  * along with this program; If not, see <http://www.gnu.org/licenses/>.
25  */
26 
27 #include <common.h>
28 #include <miiphy.h>
29 #include <asm/arch/cpu.h>
30 #include <asm/arch/kirkwood.h>
31 #include <asm/arch/mpp.h>
32 #include "pogo_e02.h"
33 
34 DECLARE_GLOBAL_DATA_PTR;
35 
36 int board_early_init_f(void)
37 {
38 	/*
39 	 * default gpio configuration
40 	 * There are maximum 64 gpios controlled through 2 sets of registers
41 	 * the  below configuration configures mainly initial LED status
42 	 */
43 	kw_config_gpio(POGO_E02_OE_VAL_LOW,
44 			POGO_E02_OE_VAL_HIGH,
45 			POGO_E02_OE_LOW, POGO_E02_OE_HIGH);
46 
47 	/* Multi-Purpose Pins Functionality configuration */
48 	static const u32 kwmpp_config[] = {
49 		MPP0_NF_IO2,
50 		MPP1_NF_IO3,
51 		MPP2_NF_IO4,
52 		MPP3_NF_IO5,
53 		MPP4_NF_IO6,
54 		MPP5_NF_IO7,
55 		MPP6_SYSRST_OUTn,
56 		MPP7_GPO,
57 		MPP8_UART0_RTS,
58 		MPP9_UART0_CTS,
59 		MPP10_UART0_TXD,
60 		MPP11_UART0_RXD,
61 		MPP12_SD_CLK,
62 		MPP13_SD_CMD,
63 		MPP14_SD_D0,
64 		MPP15_SD_D1,
65 		MPP16_SD_D2,
66 		MPP17_SD_D3,
67 		MPP18_NF_IO0,
68 		MPP19_NF_IO1,
69 		MPP29_TSMP9,	/* USB Power Enable */
70 		MPP48_GPIO,	/* LED green */
71 		MPP49_GPIO,	/* LED orange */
72 		0
73 	};
74 	kirkwood_mpp_conf(kwmpp_config, NULL);
75 	return 0;
76 }
77 
78 int board_init(void)
79 {
80 	/* Boot parameters address */
81 	gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100;
82 
83 	return 0;
84 }
85 
86 #ifdef CONFIG_RESET_PHY_R
87 /* Configure and initialize PHY */
88 void reset_phy(void)
89 {
90 	u16 reg;
91 	u16 devadr;
92 	char *name = "egiga0";
93 
94 	if (miiphy_set_current_dev(name))
95 		return;
96 
97 	/* command to read PHY dev address */
98 	if (miiphy_read(name, 0xEE, 0xEE, (u16 *) &devadr)) {
99 		printf("Err..(%s) could not read PHY dev address\n", __func__);
100 		return;
101 	}
102 
103 	/*
104 	 * Enable RGMII delay on Tx and Rx for CPU port
105 	 * Ref: sec 4.7.2 of chip datasheet
106 	 */
107 	miiphy_write(name, devadr, MV88E1116_PGADR_REG, 2);
108 	miiphy_read(name, devadr, MV88E1116_MAC_CTRL_REG, &reg);
109 	reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
110 	miiphy_write(name, devadr, MV88E1116_MAC_CTRL_REG, reg);
111 	miiphy_write(name, devadr, MV88E1116_PGADR_REG, 0);
112 
113 	/* reset the phy */
114 	miiphy_reset(name, devadr);
115 
116 	debug("88E1116 Initialized on %s\n", name);
117 }
118 #endif /* CONFIG_RESET_PHY_R */
119