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Merge branch 'u-boot-imx/master' into 'u-boot-arm/master'
[karo-tx-uboot.git] / board / Seagate / goflexhome / goflexhome.c
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  * See file CREDITS for list of people who contributed to this
13  * project.
14  *
15  * This program is free software; you can redistribute it and/or
16  * modify it under the terms of the GNU General Public License as
17  * published by the Free Software Foundation; either version 2 of
18  * the License, or (at your option) any later version.
19  *
20  * This program is distributed in the hope that it will be useful,
21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23  * GNU General Public License for more details.
24  *
25  * You should have received a copy of the GNU General Public License
26  * along with this program; if not, write to the Free Software
27  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
28  * MA 02110-1301 USA
29  */
30
31 #include <common.h>
32 #include <miiphy.h>
33 #include <asm/arch/kirkwood.h>
34 #include <asm/arch/mpp.h>
35 #include <asm/arch/cpu.h>
36 #include <asm/io.h>
37
38 DECLARE_GLOBAL_DATA_PTR;
39
40 int board_early_init_f(void)
41 {
42         /* Multi-Purpose Pins Functionality configuration */
43         static const u32 kwmpp_config[] = {
44                 MPP0_NF_IO2,
45                 MPP1_NF_IO3,
46                 MPP2_NF_IO4,
47                 MPP3_NF_IO5,
48                 MPP4_NF_IO6,
49                 MPP5_NF_IO7,
50                 MPP6_SYSRST_OUTn,
51                 MPP7_GPO,
52                 MPP8_UART0_RTS,
53                 MPP9_UART0_CTS,
54                 MPP10_UART0_TXD,
55                 MPP11_UART0_RXD,
56                 MPP12_SD_CLK,
57                 MPP13_SD_CMD,
58                 MPP14_SD_D0,
59                 MPP15_SD_D1,
60                 MPP16_SD_D2,
61                 MPP17_SD_D3,
62                 MPP18_NF_IO0,
63                 MPP19_NF_IO1,
64                 MPP20_GPIO,
65                 MPP21_GPIO,
66                 MPP22_GPIO,
67                 MPP23_GPIO,
68                 MPP24_GPIO,
69                 MPP25_GPIO,
70                 MPP26_GPIO,
71                 MPP27_GPIO,
72                 MPP28_GPIO,
73                 MPP29_TSMP9,
74                 MPP30_GPIO,
75                 MPP31_GPIO,
76                 MPP32_GPIO,
77                 MPP33_GPIO,
78                 MPP34_GPIO,
79                 MPP35_GPIO,
80                 MPP36_GPIO,
81                 MPP37_GPIO,
82                 MPP38_GPIO,
83                 MPP39_GPIO,
84                 MPP40_GPIO,
85                 MPP41_GPIO,
86                 MPP42_GPIO,
87                 MPP43_GPIO,
88                 MPP44_GPIO,
89                 MPP45_GPIO,
90                 MPP46_GPIO,
91                 MPP47_GPIO,
92                 MPP48_GPIO,
93                 MPP49_GPIO,
94                 0
95         };
96
97         /*
98          * default gpio configuration
99          * There are maximum 64 gpios controlled through 2 sets of registers
100          * the  below configuration configures mainly initial LED status
101          */
102         kw_config_gpio(GOFLEXHOME_OE_VAL_LOW,
103                        GOFLEXHOME_OE_VAL_HIGH,
104                        GOFLEXHOME_OE_LOW, GOFLEXHOME_OE_HIGH);
105         kirkwood_mpp_conf(kwmpp_config, NULL);
106         return 0;
107 }
108
109 int board_init(void)
110 {
111         /*
112          * arch number of board
113          */
114         gd->bd->bi_arch_number = MACH_TYPE_GOFLEXHOME;
115
116         /* address of boot parameters */
117         gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100;
118
119         return 0;
120 }
121
122 #ifdef CONFIG_RESET_PHY_R
123 /* Configure and enable MV88E1116 PHY */
124 void reset_phy(void)
125 {
126         u16 reg;
127         u16 devadr;
128         char *name = "egiga0";
129
130         if (miiphy_set_current_dev(name))
131                 return;
132
133         /* command to read PHY dev address */
134         if (miiphy_read(name, 0xEE, 0xEE, (u16 *)&devadr)) {
135                 printf("Err..%s could not read PHY dev address\n",
136                        __func__);
137                 return;
138         }
139
140         /*
141          * Enable RGMII delay on Tx and Rx for CPU port
142          * Ref: sec 4.7.2 of chip datasheet
143          */
144         miiphy_write(name, devadr, MV88E1116_PGADR_REG, 2);
145         miiphy_read(name, devadr, MV88E1116_MAC_CTRL_REG, &reg);
146         reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
147         miiphy_write(name, devadr, MV88E1116_MAC_CTRL_REG, reg);
148         miiphy_write(name, devadr, MV88E1116_PGADR_REG, 0);
149
150         /* reset the phy */
151         miiphy_reset(name, devadr);
152
153         printf("88E1116 Initialized on %s\n", name);
154 }
155 #endif /* CONFIG_RESET_PHY_R */
156
157 #define GREEN_LED       (1 << 14)
158 #define ORANGE_LED      (1 << 15)
159 #define BOTH_LEDS       (GREEN_LED | ORANGE_LED)
160 #define NEITHER_LED     0
161
162 static void set_leds(u32 leds, u32 blinking)
163 {
164         struct kwgpio_registers *r;
165         u32 oe;
166         u32 bl;
167
168         r = (struct kwgpio_registers *)KW_GPIO1_BASE;
169         oe = readl(&r->oe) | BOTH_LEDS;
170         writel(oe & ~leds, &r->oe);     /* active low */
171         bl = readl(&r->blink_en) & ~BOTH_LEDS;
172         writel(bl | blinking, &r->blink_en);
173 }
174
175 void show_boot_progress(int val)
176 {
177         switch (val) {
178         case BOOTSTAGE_ID_RUN_OS:               /* booting Linux */
179                 set_leds(BOTH_LEDS, NEITHER_LED);
180                 break;
181         case BOOTSTAGE_ID_NET_ETH_START:        /* Ethernet initialization */
182                 set_leds(GREEN_LED, GREEN_LED);
183                 break;
184         default:
185                 if (val < 0)    /* error */
186                         set_leds(ORANGE_LED, ORANGE_LED);
187                 break;
188         }
189 }