tizen 2.4 release
[kernel/u-boot-tm1.git] / board / Marvell / sheevaplug / sheevaplug.c
1 /*
2  * (C) Copyright 2009
3  * Marvell Semiconductor <www.marvell.com>
4  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
5  *
6  * See file CREDITS for list of people who contributed to this
7  * project.
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License as
11  * published by the Free Software Foundation; either version 2 of
12  * the License, or (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
22  * MA 02110-1301 USA
23  */
24
25 #include <common.h>
26 #include <miiphy.h>
27 #include <asm/arch/kirkwood.h>
28 #include <asm/arch/mpp.h>
29 #include "sheevaplug.h"
30
31 DECLARE_GLOBAL_DATA_PTR;
32
33 int board_early_init_f(void)
34 {
35         /*
36          * default gpio configuration
37          * There are maximum 64 gpios controlled through 2 sets of registers
38          * the  below configuration configures mainly initial LED status
39          */
40         kw_config_gpio(SHEEVAPLUG_OE_VAL_LOW,
41                         SHEEVAPLUG_OE_VAL_HIGH,
42                         SHEEVAPLUG_OE_LOW, SHEEVAPLUG_OE_HIGH);
43
44         /* Multi-Purpose Pins Functionality configuration */
45         u32 kwmpp_config[] = {
46                 MPP0_NF_IO2,
47                 MPP1_NF_IO3,
48                 MPP2_NF_IO4,
49                 MPP3_NF_IO5,
50                 MPP4_NF_IO6,
51                 MPP5_NF_IO7,
52                 MPP6_SYSRST_OUTn,
53                 MPP7_GPO,
54                 MPP8_UART0_RTS,
55                 MPP9_UART0_CTS,
56                 MPP10_UART0_TXD,
57                 MPP11_UART0_RXD,
58                 MPP12_SD_CLK,
59                 MPP13_SD_CMD,
60                 MPP14_SD_D0,
61                 MPP15_SD_D1,
62                 MPP16_SD_D2,
63                 MPP17_SD_D3,
64                 MPP18_NF_IO0,
65                 MPP19_NF_IO1,
66                 MPP20_GPIO,
67                 MPP21_GPIO,
68                 MPP22_GPIO,
69                 MPP23_GPIO,
70                 MPP24_GPIO,
71                 MPP25_GPIO,
72                 MPP26_GPIO,
73                 MPP27_GPIO,
74                 MPP28_GPIO,
75                 MPP29_TSMP9,
76                 MPP30_GPIO,
77                 MPP31_GPIO,
78                 MPP32_GPIO,
79                 MPP33_GPIO,
80                 MPP34_GPIO,
81                 MPP35_GPIO,
82                 MPP36_GPIO,
83                 MPP37_GPIO,
84                 MPP38_GPIO,
85                 MPP39_GPIO,
86                 MPP40_GPIO,
87                 MPP41_GPIO,
88                 MPP42_GPIO,
89                 MPP43_GPIO,
90                 MPP44_GPIO,
91                 MPP45_GPIO,
92                 MPP46_GPIO,
93                 MPP47_GPIO,
94                 MPP48_GPIO,
95                 MPP49_GPIO,
96                 0
97         };
98         kirkwood_mpp_conf(kwmpp_config);
99         return 0;
100 }
101
102 int board_init(void)
103 {
104         /*
105          * arch number of board
106          */
107         gd->bd->bi_arch_number = MACH_TYPE_SHEEVAPLUG;
108
109         /* adress of boot parameters */
110         gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100;
111
112         return 0;
113 }
114
115 #ifdef CONFIG_RESET_PHY_R
116 /* Configure and enable MV88E1116 PHY */
117 void reset_phy(void)
118 {
119         u16 reg;
120         u16 devadr;
121         char *name = "egiga0";
122
123         if (miiphy_set_current_dev(name))
124                 return;
125
126         /* command to read PHY dev address */
127         if (miiphy_read(name, 0xEE, 0xEE, (u16 *) &devadr)) {
128                 printf("Err..%s could not read PHY dev address\n",
129                         __FUNCTION__);
130                 return;
131         }
132
133         /*
134          * Enable RGMII delay on Tx and Rx for CPU port
135          * Ref: sec 4.7.2 of chip datasheet
136          */
137         miiphy_write(name, devadr, MV88E1116_PGADR_REG, 2);
138         miiphy_read(name, devadr, MV88E1116_MAC_CTRL_REG, &reg);
139         reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
140         miiphy_write(name, devadr, MV88E1116_MAC_CTRL_REG, reg);
141         miiphy_write(name, devadr, MV88E1116_PGADR_REG, 0);
142
143         /* reset the phy */
144         miiphy_reset(name, devadr);
145
146         printf("88E1116 Initialized on %s\n", name);
147 }
148 #endif /* CONFIG_RESET_PHY_R */