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[u-boot] / board / comelit / dig297 / dig297.c
1 /*
2  * (C) Copyright 2011 Comelit Group SpA
3  * Luca Ceresoli <luca.ceresoli@comelit.it>
4  *
5  * Based on board/ti/beagle/beagle.c:
6  * (C) Copyright 2004-2008
7  * Texas Instruments, <www.ti.com>
8  *
9  * Author :
10  *      Sunil Kumar <sunilsaini05@gmail.com>
11  *      Shashi Ranjan <shashiranjanmca05@gmail.com>
12  *
13  * Derived from Beagle Board and 3430 SDP code by
14  *      Richard Woodruff <r-woodruff2@ti.com>
15  *      Syed Mohammed Khasim <khasim@ti.com>
16  *
17  *
18  * SPDX-License-Identifier:     GPL-2.0+
19  */
20 #include <common.h>
21 #include <netdev.h>
22 #include <twl4030.h>
23 #include <asm/io.h>
24 #include <asm/arch/mmc_host_def.h>
25 #include <asm/arch/omap3-regs.h>
26 #include <asm/arch/mux.h>
27 #include <asm/arch/mem.h>
28 #include <asm/arch/sys_proto.h>
29 #include <asm/gpio.h>
30 #include <asm/mach-types.h>
31 #include "dig297.h"
32
33 DECLARE_GLOBAL_DATA_PTR;
34
35 #ifdef CONFIG_CMD_NET
36 static void setup_net_chip(void);
37
38 #define NET_LAN9221_RESET_GPIO 12
39
40 /* GPMC CS 5 connected to an SMSC LAN9220 ethernet controller */
41 #define NET_LAN9220_GPMC_CONFIG1        (DEVICESIZE_16BIT)
42 #define NET_LAN9220_GPMC_CONFIG2        (CSWROFFTIME(8) | \
43                                          CSRDOFFTIME(7) | \
44                                          ADVONTIME(1))
45 #define NET_LAN9220_GPMC_CONFIG3        (ADVWROFFTIME(2) | \
46                                          ADVRDOFFTIME(2) | \
47                                          ADVONTIME(1))
48 #define NET_LAN9220_GPMC_CONFIG4        (WEOFFTIME(8) | \
49                                          WEONTIME(1) |  \
50                                          OEOFFTIME(7)|  \
51                                          OEONTIME(1))
52 #define NET_LAN9220_GPMC_CONFIG5        (PAGEBURSTACCESSTIME(0) | \
53                                          RDACCESSTIME(6)        | \
54                                          WRCYCLETIME(0x1D)      | \
55                                          RDCYCLETIME(0x1D))
56 #define NET_LAN9220_GPMC_CONFIG6        ((1 << 31)          | \
57                                          WRACCESSTIME(0x1D) | \
58                                          WRDATAONADMUXBUS(3))
59
60 static const u32 gpmc_lan_config[] = {
61         NET_LAN9220_GPMC_CONFIG1,
62         NET_LAN9220_GPMC_CONFIG2,
63         NET_LAN9220_GPMC_CONFIG3,
64         NET_LAN9220_GPMC_CONFIG4,
65         NET_LAN9220_GPMC_CONFIG5,
66         NET_LAN9220_GPMC_CONFIG6,
67         /* CONFIG7: computed by enable_gpmc_cs_config() */
68 };
69 #endif /* CONFIG_CMD_NET */
70
71 /*
72  * Routine: board_init
73  * Description: Early hardware init.
74  */
75 int board_init(void)
76 {
77         gpmc_init();            /* in SRAM or SDRAM, finish GPMC */
78         /* boot param addr */
79         gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
80
81         return 0;
82 }
83
84 /*
85  * Routine: misc_init_r
86  * Description: Configure board specific parts
87  */
88 int misc_init_r(void)
89 {
90         struct gpio *gpio1_base = (struct gpio *)OMAP34XX_GPIO1_BASE;
91         struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
92
93         twl4030_power_init();
94         twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
95
96         /*
97          * GPIO list
98          * - 159 OUT (GPIO5+31): reset for remote camera interface connector.
99          * - 19  OUT (GPIO1+19): integrated speaker amplifier (1=on, 0=shdn).
100          * - 20  OUT (GPIO1+20): handset amplifier (1=on, 0=shdn).
101          */
102
103         /* Configure GPIOs to output */
104         writel(~(GPIO19 | GPIO20), &gpio1_base->oe);
105         writel(~(GPIO31), &gpio5_base->oe);
106
107         /* Set GPIO values */
108         writel((GPIO19 | GPIO20), &gpio1_base->setdataout);
109         writel(0, &gpio5_base->setdataout);
110
111 #if defined(CONFIG_CMD_NET)
112         setup_net_chip();
113 #endif
114
115         dieid_num_r();
116
117         return 0;
118 }
119
120 /*
121  * Routine: set_muxconf_regs
122  * Description: Setting up the configuration Mux registers specific to the
123  *              hardware. Many pins need to be moved from protect to primary
124  *              mode.
125  */
126 void set_muxconf_regs(void)
127 {
128         MUX_DIG297();
129 }
130
131 #ifdef CONFIG_GENERIC_MMC
132 int board_mmc_init(bd_t *bis)
133 {
134         return omap_mmc_init(0, 0, 0, -1, -1);
135 }
136 #endif
137
138 #ifdef CONFIG_CMD_NET
139 /*
140  * Routine: setup_net_chip
141  * Description: Setting up the configuration GPMC registers specific to the
142  *            Ethernet hardware.
143  */
144 static void setup_net_chip(void)
145 {
146         struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
147
148         /* Configure GPMC registers */
149         enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5],
150                               CONFIG_SMC911X_BASE, GPMC_SIZE_16M);
151
152         /* Enable off mode for NWE in PADCONF_GPMC_NWE register */
153         writew(readw(&ctrl_base->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
154         /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
155         writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
156         /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
157         writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
158                &ctrl_base->gpmc_nadv_ale);
159
160         /* Make GPIO 12 as output pin and send a magic pulse through it */
161         if (!gpio_request(NET_LAN9221_RESET_GPIO, "")) {
162                 gpio_direction_output(NET_LAN9221_RESET_GPIO, 0);
163                 gpio_set_value(NET_LAN9221_RESET_GPIO, 1);
164                 udelay(1);
165                 gpio_set_value(NET_LAN9221_RESET_GPIO, 0);
166                 udelay(31000);  /* Should be >= 30ms according to datasheet */
167                 gpio_set_value(NET_LAN9221_RESET_GPIO, 1);
168         }
169 }
170 #endif /* CONFIG_CMD_NET */
171
172 int board_eth_init(bd_t *bis)
173 {
174         int rc = 0;
175         rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
176         return rc;
177 }