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Dirk Behmead9bc8e2009-01-28 21:39:58 +01001/*
2 * (C) Copyright 2004-2008
3 * Texas Instruments, <www.ti.com>
4 *
5 * Author :
6 * Manikandan Pillai <mani.pillai@ti.com>
7 *
8 * Derived from Beagle Board and 3430 SDP code by
9 * Richard Woodruff <r-woodruff2@ti.com>
10 * Syed Mohammed Khasim <khasim@ti.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., 59 Temple Place, Suite 330, Boston,
28 * MA 02111-1307 USA
29 */
30#include <common.h>
Ben Warren736fead2009-07-20 22:01:11 -070031#include <netdev.h>
Dirk Behmead9bc8e2009-01-28 21:39:58 +010032#include <asm/io.h>
33#include <asm/arch/mem.h>
34#include <asm/arch/mux.h>
35#include <asm/arch/sys_proto.h>
Sriramakrishnanc0682582011-07-18 09:21:55 -040036#include <asm/arch/gpio.h>
Dirk Behmead9bc8e2009-01-28 21:39:58 +010037#include <i2c.h>
38#include <asm/mach-types.h>
39#include "evm.h"
40
Sriramakrishnanc0682582011-07-18 09:21:55 -040041#define OMAP3EVM_GPIO_ETH_RST_GEN1 64
42#define OMAP3EVM_GPIO_ETH_RST_GEN2 7
43
John Rigby29565322010-12-20 18:27:51 -070044DECLARE_GLOBAL_DATA_PTR;
45
Dirk Behmeb606ef42010-12-18 07:40:28 +010046static u32 omap3_evm_version;
Ajay Kumar Guptab5abf642010-06-10 11:20:49 +053047
Dirk Behmeb606ef42010-12-18 07:40:28 +010048u32 get_omap3_evm_rev(void)
Ajay Kumar Guptab5abf642010-06-10 11:20:49 +053049{
50 return omap3_evm_version;
51}
52
53static void omap3_evm_get_revision(void)
54{
Sanjeev Premi76ee9a22010-11-04 16:02:32 -040055#if defined(CONFIG_CMD_NET)
56 /*
57 * Board revision can be ascertained only by identifying
58 * the Ethernet chipset.
59 */
Ajay Kumar Guptab5abf642010-06-10 11:20:49 +053060 unsigned int smsc_id;
61
62 /* Ethernet PHY ID is stored at ID_REV register */
63 smsc_id = readl(CONFIG_SMC911X_BASE + 0x50) & 0xFFFF0000;
64 printf("Read back SMSC id 0x%x\n", smsc_id);
65
66 switch (smsc_id) {
67 /* SMSC9115 chipset */
68 case 0x01150000:
69 omap3_evm_version = OMAP3EVM_BOARD_GEN_1;
70 break;
71 /* SMSC 9220 chipset */
72 case 0x92200000:
73 default:
74 omap3_evm_version = OMAP3EVM_BOARD_GEN_2;
75 }
Sanjeev Premi76ee9a22010-11-04 16:02:32 -040076#else
77#if defined(CONFIG_STATIC_BOARD_REV)
78 /*
79 * Look for static defintion of the board revision
80 */
81 omap3_evm_version = CONFIG_STATIC_BOARD_REV;
82#else
83 /*
84 * Fallback to the default above.
85 */
86 omap3_evm_version = OMAP3EVM_BOARD_GEN_2;
87#endif
88#endif /* CONFIG_CMD_NET */
Ajay Kumar Guptab5abf642010-06-10 11:20:49 +053089}
90
Sanjeev Premi63f42402010-11-04 16:02:29 -040091#ifdef CONFIG_USB_OMAP3
Tom Rix58911512009-04-01 22:02:20 -050092/*
Ajay Kumar Gupta944a4892010-06-10 11:20:50 +053093 * MUSB port on OMAP3EVM Rev >= E requires extvbus programming.
94 */
95u8 omap3_evm_need_extvbus(void)
96{
97 u8 retval = 0;
98
99 if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2)
100 retval = 1;
101
102 return retval;
103}
Sanjeev Premi63f42402010-11-04 16:02:29 -0400104#endif
Ajay Kumar Gupta944a4892010-06-10 11:20:50 +0530105
106/*
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100107 * Routine: board_init
108 * Description: Early hardware init.
Tom Rix58911512009-04-01 22:02:20 -0500109 */
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100110int board_init(void)
111{
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100112 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
113 /* board id for Linux */
114 gd->bd->bi_arch_number = MACH_TYPE_OMAP3EVM;
115 /* boot param addr */
116 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
117
118 return 0;
119}
120
Tom Rix58911512009-04-01 22:02:20 -0500121/*
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100122 * Routine: misc_init_r
123 * Description: Init ethernet (done here so udelay works)
Tom Rix58911512009-04-01 22:02:20 -0500124 */
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100125int misc_init_r(void)
126{
127
128#ifdef CONFIG_DRIVER_OMAP34XX_I2C
129 i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
130#endif
131
132#if defined(CONFIG_CMD_NET)
133 setup_net_chip();
134#endif
Sanjeev Premi76ee9a22010-11-04 16:02:32 -0400135 omap3_evm_get_revision();
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100136
Sanjeev Premi6921b312011-07-18 09:20:15 -0400137#if defined(CONFIG_CMD_NET)
138 reset_net_chip();
139#endif
Dirk Behmee6a6a702009-03-12 19:30:50 +0100140 dieid_num_r();
141
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100142 return 0;
143}
144
Tom Rix58911512009-04-01 22:02:20 -0500145/*
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100146 * Routine: set_muxconf_regs
147 * Description: Setting up the configuration Mux registers specific to the
148 * hardware. Many pins need to be moved from protect to primary
149 * mode.
Tom Rix58911512009-04-01 22:02:20 -0500150 */
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100151void set_muxconf_regs(void)
152{
153 MUX_EVM();
154}
155
Tom Rix58911512009-04-01 22:02:20 -0500156/*
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100157 * Routine: setup_net_chip
158 * Description: Setting up the configuration GPMC registers specific to the
159 * Ethernet hardware.
Tom Rix58911512009-04-01 22:02:20 -0500160 */
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100161static void setup_net_chip(void)
162{
Dirk Behme97a099e2009-08-08 09:30:21 +0200163 struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100164
165 /* Configure GPMC registers */
Dirk Behme89411352009-08-08 09:30:22 +0200166 writel(NET_GPMC_CONFIG1, &gpmc_cfg->cs[5].config1);
167 writel(NET_GPMC_CONFIG2, &gpmc_cfg->cs[5].config2);
168 writel(NET_GPMC_CONFIG3, &gpmc_cfg->cs[5].config3);
169 writel(NET_GPMC_CONFIG4, &gpmc_cfg->cs[5].config4);
170 writel(NET_GPMC_CONFIG5, &gpmc_cfg->cs[5].config5);
171 writel(NET_GPMC_CONFIG6, &gpmc_cfg->cs[5].config6);
172 writel(NET_GPMC_CONFIG7, &gpmc_cfg->cs[5].config7);
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100173
174 /* Enable off mode for NWE in PADCONF_GPMC_NWE register */
175 writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
176 /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
177 writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
178 /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
179 writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
180 &ctrl_base->gpmc_nadv_ale);
Sanjeev Premi6921b312011-07-18 09:20:15 -0400181}
182
183/**
184 * Reset the ethernet chip.
185 */
186static void reset_net_chip(void)
187{
Sriramakrishnanc0682582011-07-18 09:21:55 -0400188 int ret;
189 int rst_gpio;
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100190
Sriramakrishnanc0682582011-07-18 09:21:55 -0400191 if (get_omap3_evm_rev() == OMAP3EVM_BOARD_GEN_1) {
192 rst_gpio = OMAP3EVM_GPIO_ETH_RST_GEN1;
193 } else {
194 rst_gpio = OMAP3EVM_GPIO_ETH_RST_GEN2;
195 }
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100196
Sriramakrishnanc0682582011-07-18 09:21:55 -0400197 ret = omap_request_gpio(rst_gpio);
198 if (ret < 0) {
199 printf("Unable to get GPIO %d\n", rst_gpio);
200 return ;
201 }
202
203 /* Configure as output */
204 omap_set_gpio_direction(rst_gpio, 0);
205
206 /* Send a pulse on the GPIO pin */
207 omap_set_gpio_dataout(rst_gpio, 1);
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100208 udelay(1);
Sriramakrishnanc0682582011-07-18 09:21:55 -0400209 omap_set_gpio_dataout(rst_gpio, 0);
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100210 udelay(1);
Sriramakrishnanc0682582011-07-18 09:21:55 -0400211 omap_set_gpio_dataout(rst_gpio, 1);
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100212}
Ben Warren736fead2009-07-20 22:01:11 -0700213
214int board_eth_init(bd_t *bis)
215{
216 int rc = 0;
217#ifdef CONFIG_SMC911X
218 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
219#endif
220 return rc;
221}