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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>
Vaibhav Hiremathdcc4f382011-09-03 21:42:35 -040036#include <asm/arch/mmc_host_def.h>
Sanjeev Premi84c3b632011-09-08 10:51:01 -040037#include <asm/gpio.h>
Dirk Behmead9bc8e2009-01-28 21:39:58 +010038#include <i2c.h>
39#include <asm/mach-types.h>
40#include "evm.h"
41
Sriramakrishnanc0682582011-07-18 09:21:55 -040042#define OMAP3EVM_GPIO_ETH_RST_GEN1 64
43#define OMAP3EVM_GPIO_ETH_RST_GEN2 7
44
John Rigby29565322010-12-20 18:27:51 -070045DECLARE_GLOBAL_DATA_PTR;
46
Dirk Behmeb606ef42010-12-18 07:40:28 +010047static u32 omap3_evm_version;
Ajay Kumar Guptab5abf642010-06-10 11:20:49 +053048
Dirk Behmeb606ef42010-12-18 07:40:28 +010049u32 get_omap3_evm_rev(void)
Ajay Kumar Guptab5abf642010-06-10 11:20:49 +053050{
51 return omap3_evm_version;
52}
53
54static void omap3_evm_get_revision(void)
55{
Sanjeev Premi76ee9a22010-11-04 16:02:32 -040056#if defined(CONFIG_CMD_NET)
57 /*
58 * Board revision can be ascertained only by identifying
59 * the Ethernet chipset.
60 */
Ajay Kumar Guptab5abf642010-06-10 11:20:49 +053061 unsigned int smsc_id;
62
63 /* Ethernet PHY ID is stored at ID_REV register */
64 smsc_id = readl(CONFIG_SMC911X_BASE + 0x50) & 0xFFFF0000;
65 printf("Read back SMSC id 0x%x\n", smsc_id);
66
67 switch (smsc_id) {
68 /* SMSC9115 chipset */
69 case 0x01150000:
70 omap3_evm_version = OMAP3EVM_BOARD_GEN_1;
71 break;
72 /* SMSC 9220 chipset */
73 case 0x92200000:
74 default:
75 omap3_evm_version = OMAP3EVM_BOARD_GEN_2;
76 }
Sanjeev Premi76ee9a22010-11-04 16:02:32 -040077#else
78#if defined(CONFIG_STATIC_BOARD_REV)
79 /*
80 * Look for static defintion of the board revision
81 */
82 omap3_evm_version = CONFIG_STATIC_BOARD_REV;
83#else
84 /*
85 * Fallback to the default above.
86 */
87 omap3_evm_version = OMAP3EVM_BOARD_GEN_2;
88#endif
89#endif /* CONFIG_CMD_NET */
Ajay Kumar Guptab5abf642010-06-10 11:20:49 +053090}
91
Sanjeev Premi63f42402010-11-04 16:02:29 -040092#ifdef CONFIG_USB_OMAP3
Tom Rix58911512009-04-01 22:02:20 -050093/*
Ajay Kumar Gupta944a4892010-06-10 11:20:50 +053094 * MUSB port on OMAP3EVM Rev >= E requires extvbus programming.
95 */
96u8 omap3_evm_need_extvbus(void)
97{
98 u8 retval = 0;
99
100 if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2)
101 retval = 1;
102
103 return retval;
104}
Sanjeev Premi63f42402010-11-04 16:02:29 -0400105#endif
Ajay Kumar Gupta944a4892010-06-10 11:20:50 +0530106
107/*
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100108 * Routine: board_init
109 * Description: Early hardware init.
Tom Rix58911512009-04-01 22:02:20 -0500110 */
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100111int board_init(void)
112{
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100113 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
114 /* board id for Linux */
115 gd->bd->bi_arch_number = MACH_TYPE_OMAP3EVM;
116 /* boot param addr */
117 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
118
119 return 0;
120}
121
Tom Rix58911512009-04-01 22:02:20 -0500122/*
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100123 * Routine: misc_init_r
124 * Description: Init ethernet (done here so udelay works)
Tom Rix58911512009-04-01 22:02:20 -0500125 */
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100126int misc_init_r(void)
127{
128
129#ifdef CONFIG_DRIVER_OMAP34XX_I2C
130 i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
131#endif
132
133#if defined(CONFIG_CMD_NET)
134 setup_net_chip();
135#endif
Sanjeev Premi76ee9a22010-11-04 16:02:32 -0400136 omap3_evm_get_revision();
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100137
Sanjeev Premi6921b312011-07-18 09:20:15 -0400138#if defined(CONFIG_CMD_NET)
139 reset_net_chip();
140#endif
Dirk Behmee6a6a702009-03-12 19:30:50 +0100141 dieid_num_r();
142
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100143 return 0;
144}
145
Tom Rix58911512009-04-01 22:02:20 -0500146/*
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100147 * Routine: set_muxconf_regs
148 * Description: Setting up the configuration Mux registers specific to the
149 * hardware. Many pins need to be moved from protect to primary
150 * mode.
Tom Rix58911512009-04-01 22:02:20 -0500151 */
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100152void set_muxconf_regs(void)
153{
154 MUX_EVM();
155}
156
Sanjeev Premi5626f332011-07-18 09:23:00 -0400157#ifdef CONFIG_CMD_NET
Tom Rix58911512009-04-01 22:02:20 -0500158/*
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100159 * Routine: setup_net_chip
160 * Description: Setting up the configuration GPMC registers specific to the
161 * Ethernet hardware.
Tom Rix58911512009-04-01 22:02:20 -0500162 */
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100163static void setup_net_chip(void)
164{
Dirk Behme97a099e2009-08-08 09:30:21 +0200165 struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100166
167 /* Configure GPMC registers */
Dirk Behme89411352009-08-08 09:30:22 +0200168 writel(NET_GPMC_CONFIG1, &gpmc_cfg->cs[5].config1);
169 writel(NET_GPMC_CONFIG2, &gpmc_cfg->cs[5].config2);
170 writel(NET_GPMC_CONFIG3, &gpmc_cfg->cs[5].config3);
171 writel(NET_GPMC_CONFIG4, &gpmc_cfg->cs[5].config4);
172 writel(NET_GPMC_CONFIG5, &gpmc_cfg->cs[5].config5);
173 writel(NET_GPMC_CONFIG6, &gpmc_cfg->cs[5].config6);
174 writel(NET_GPMC_CONFIG7, &gpmc_cfg->cs[5].config7);
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100175
176 /* Enable off mode for NWE in PADCONF_GPMC_NWE register */
177 writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
178 /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
179 writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
180 /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
181 writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
182 &ctrl_base->gpmc_nadv_ale);
Sanjeev Premi6921b312011-07-18 09:20:15 -0400183}
184
185/**
186 * Reset the ethernet chip.
187 */
188static void reset_net_chip(void)
189{
Sriramakrishnanc0682582011-07-18 09:21:55 -0400190 int ret;
191 int rst_gpio;
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100192
Sriramakrishnanc0682582011-07-18 09:21:55 -0400193 if (get_omap3_evm_rev() == OMAP3EVM_BOARD_GEN_1) {
194 rst_gpio = OMAP3EVM_GPIO_ETH_RST_GEN1;
195 } else {
196 rst_gpio = OMAP3EVM_GPIO_ETH_RST_GEN2;
197 }
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100198
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400199 ret = gpio_request(rst_gpio, "");
Sriramakrishnanc0682582011-07-18 09:21:55 -0400200 if (ret < 0) {
201 printf("Unable to get GPIO %d\n", rst_gpio);
202 return ;
203 }
204
205 /* Configure as output */
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400206 gpio_direction_output(rst_gpio, 0);
Sriramakrishnanc0682582011-07-18 09:21:55 -0400207
208 /* Send a pulse on the GPIO pin */
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400209 gpio_set_value(rst_gpio, 1);
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100210 udelay(1);
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400211 gpio_set_value(rst_gpio, 0);
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100212 udelay(1);
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400213 gpio_set_value(rst_gpio, 1);
Dirk Behmead9bc8e2009-01-28 21:39:58 +0100214}
Ben Warren736fead2009-07-20 22:01:11 -0700215
216int board_eth_init(bd_t *bis)
217{
218 int rc = 0;
219#ifdef CONFIG_SMC911X
220 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
221#endif
222 return rc;
223}
Sanjeev Premi5626f332011-07-18 09:23:00 -0400224#endif /* CONFIG_CMD_NET */
Vaibhav Hiremathdcc4f382011-09-03 21:42:35 -0400225
226#ifdef CONFIG_GENERIC_MMC
227int board_mmc_init(bd_t *bis)
228{
229 omap_mmc_init(0);
230 return 0;
231}
232#endif