source: SVN/rincon/u-boot/board/omap5912osk/omap5912osk.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 22 months ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 8.9 KB
Line 
1/*
2 * (C) Copyright 2002
3 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
4 * Marius Groeger <mgroeger@sysgo.de>
5 *
6 * (C) Copyright 2002
7 * David Mueller, ELSOFT AG, <d.mueller@elsoft.ch>
8 *
9 * (C) Copyright 2003
10 * Texas Instruments, <www.ti.com>
11 * Kshitij Gupta <Kshitij@ti.com>
12 *
13 * (C) Copyright 2004
14 * Texas Instruments, <www.ti.com>
15 * Rishi Bhattacharya <rishi@ti.com>
16 *
17 * See file CREDITS for list of people who contributed to this
18 * project.
19 *
20 * This program is free software; you can redistribute it and/or
21 * modify it under the terms of the GNU General Public License as
22 * published by the Free Software Foundation; either version 2 of
23 * the License, or (at your option) any later version.
24 *
25 * This program is distributed in the hope that it will be useful,
26 * but WITHOUT ANY WARRANTY; without even the implied warranty of
27 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
28 * GNU General Public License for more details.
29 *
30 * You should have received a copy of the GNU General Public License
31 * along with this program; if not, write to the Free Software
32 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
33 * MA 02111-1307 USA
34 */
35
36#include <common.h>
37#if defined(CONFIG_OMAP1610)
38#include <./configs/omap1510.h>
39#endif
40
41DECLARE_GLOBAL_DATA_PTR;
42
43void flash__init (void);
44void ether__init (void);
45void set_muxconf_regs (void);
46void peripheral_power_enable (void);
47
48#define COMP_MODE_ENABLE ((unsigned int)0x0000EAEF)
49
50static inline void delay (unsigned long loops)
51{
52        __asm__ volatile ("1:\n"
53                "subs %0, %1, #1\n"
54                "bne 1b":"=r" (loops):"0" (loops));
55}
56
57/*
58 * Miscellaneous platform dependent initialisations
59 */
60
61int board_init (void)
62{
63        gd->bd->bi_arch_number = MACH_TYPE_OMAP_OSK;
64
65        /* adress of boot parameters */
66        gd->bd->bi_boot_params = 0x10000100;
67
68        /* Configure MUX settings */
69        set_muxconf_regs ();
70        peripheral_power_enable ();
71
72/* this speeds up your boot a quite a bit.  However to make it
73 *  work, you need make sure your kernel startup flush bug is fixed.
74 *  ... rkw ...
75 */
76        icache_enable ();
77
78        flash__init ();
79        ether__init ();
80        return 0;
81}
82
83
84int misc_init_r (void)
85{
86        /* currently empty */
87        return (0);
88}
89
90/******************************
91 Routine:
92 Description:
93******************************/
94void flash__init (void)
95{
96#define EMIFS_GlB_Config_REG 0xfffecc0c
97        unsigned int regval;
98        regval = *((volatile unsigned int *) EMIFS_GlB_Config_REG);
99        /* Turn off write protection for flash devices. */
100        regval = regval | 0x0001;
101        *((volatile unsigned int *) EMIFS_GlB_Config_REG) = regval;
102}
103/*************************************************************
104 Routine:ether__init
105 Description: take the Ethernet controller out of reset and wait
106                           for the EEPROM load to complete.
107*************************************************************/
108void ether__init (void)
109{
110#define ETH_CONTROL_REG 0x0480000b
111        int i;
112
113        *((volatile unsigned short *) 0xfffece08) = 0x03FF;
114        *((volatile unsigned short *) 0xfffb3824) = 0x8000;
115        *((volatile unsigned short *) 0xfffb3830) = 0x0000;
116        *((volatile unsigned short *) 0xfffb3834) = 0x0009;
117        *((volatile unsigned short *) 0xfffb3838) = 0x0009;
118        *((volatile unsigned short *) 0xfffb3818) = 0x0002;
119        *((volatile unsigned short *) 0xfffb382C) = 0x0048;
120        *((volatile unsigned short *) 0xfffb3824) = 0x8603;
121        udelay (3);
122        for (i=0;i<2000;i++);
123        *((volatile unsigned short *) 0xfffb381C) = 0x6610;
124        udelay (30);
125        for (i=0;i<10000;i++);
126
127        *((volatile unsigned char *) ETH_CONTROL_REG) &= ~0x01;
128        udelay (3);
129
130
131}
132
133/******************************
134 Routine:
135 Description:
136******************************/
137int dram_init (void)
138{
139        gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
140        gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
141
142        return 0;
143}
144
145/******************************************************
146 Routine: set_muxconf_regs
147 Description: Setting up the configuration Mux registers
148                          specific to the hardware
149*******************************************************/
150void set_muxconf_regs (void)
151{
152        volatile unsigned int *MuxConfReg;
153        /* set each registers to its reset value; */
154        MuxConfReg =
155                (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_0);
156        /* setup for UART1 */
157        *MuxConfReg &= ~(0x02000000);   /* bit 25 */
158        /* setup for UART2 */
159        *MuxConfReg &= ~(0x01000000);   /* bit 24 */
160        /* Disable Uwire CS Hi-Z */
161        *MuxConfReg |= 0x08000000;
162        MuxConfReg =
163                (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_3);
164        *MuxConfReg = 0x00000000;
165        MuxConfReg =
166                (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_4);
167        *MuxConfReg = 0x00000000;
168        MuxConfReg =
169                (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_5);
170        *MuxConfReg = 0x00000000;
171        MuxConfReg =
172                (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_6);
173        /*setup mux for UART3 */
174        *MuxConfReg |= 0x00000001;      /* bit3, 1, 0 (mux0 5,5,26) */
175        *MuxConfReg &= ~0x0000003e;
176        MuxConfReg =
177                (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_7);
178        *MuxConfReg = 0x00000000;
179        MuxConfReg =
180                (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_8);
181        /* Disable Uwire CS Hi-Z */
182        *MuxConfReg |= 0x00001200;      /*bit 9 for CS0 12 for CS3 */
183        MuxConfReg =
184                (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_9);
185        /*  Need to turn on bits 21 and 12 in FUNC_MUX_CTRL_9 so the  */
186        /*  hardware will actually use TX and RTS based on bit 25 in  */
187        /*  FUNC_MUX_CTRL_0.  I told you this thing was screwy!  */
188        *MuxConfReg |= 0x00201000;
189        MuxConfReg =
190                (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_A);
191        *MuxConfReg = 0x00000000;
192        MuxConfReg =
193                (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_B);
194        *MuxConfReg = 0x00000000;
195        MuxConfReg =
196                (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_C);
197        /* setup for UART2 */
198        /*  Need to turn on bits 27 and 24 in FUNC_MUX_CTRL_C so the  */
199        /*  hardware will actually use TX and RTS based on bit 24 in  */
200        /*  FUNC_MUX_CTRL_0. */
201        *MuxConfReg |= 0x09000000;
202        MuxConfReg =
203        (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_D);
204        *MuxConfReg |= 0x00000020;
205        MuxConfReg =
206                (volatile unsigned int *) ((unsigned int) PULL_DWN_CTRL_0);
207        *MuxConfReg = 0x00000000;
208        MuxConfReg =
209                (volatile unsigned int *) ((unsigned int) PULL_DWN_CTRL_1);
210        *MuxConfReg = 0x00000000;
211        /* mux setup for SD/MMC driver */
212        MuxConfReg =
213                (volatile unsigned int *) ((unsigned int) PULL_DWN_CTRL_2);
214        *MuxConfReg &= 0xFFFE0FFF;
215        MuxConfReg =
216                (volatile unsigned int *) ((unsigned int) PULL_DWN_CTRL_3);
217        *MuxConfReg = 0x00000000;
218        MuxConfReg =
219                (volatile unsigned int *) ((unsigned int) MOD_CONF_CTRL_0);
220        /* bit 13 for MMC2 XOR_CLK */
221        *MuxConfReg &= ~(0x00002000);
222        /* bit 29 for UART 1 */
223        *MuxConfReg &= ~(0x00002000);
224        MuxConfReg =
225                (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_0);
226        /* Configure for USB. Turn on VBUS_CTRL and VBUS_MODE. */
227        *MuxConfReg |= 0x000C0000;
228        MuxConfReg =
229                (volatile unsigned int *) ((unsigned int)USB_TRANSCEIVER_CTRL);
230        *MuxConfReg &= ~(0x00000070);
231        *MuxConfReg &= ~(0x00000008);
232        *MuxConfReg |= 0x00000003;
233        *MuxConfReg |= 0x00000180;
234        MuxConfReg =
235                (volatile unsigned int *) ((unsigned int) MOD_CONF_CTRL_0);
236        /* bit 17, software controls VBUS */
237        *MuxConfReg &= ~(0x00020000);
238        /* Enable USB 48 and 12M clocks */
239        *MuxConfReg |= 0x00000200;
240        *MuxConfReg &= ~(0x00000180);
241        /*2.75V for MMCSDIO1 */
242        MuxConfReg =
243                (volatile unsigned int *) ((unsigned int) VOLTAGE_CTRL_0);
244        *MuxConfReg = 0x00001FE7;
245        MuxConfReg =
246                (volatile unsigned int *) ((unsigned int) PU_PD_SEL_0);
247        *MuxConfReg = 0x00000000;
248        MuxConfReg =
249                (volatile unsigned int *) ((unsigned int) PU_PD_SEL_1);
250        *MuxConfReg = 0x00000000;
251        MuxConfReg =
252                (volatile unsigned int *) ((unsigned int) PU_PD_SEL_2);
253        *MuxConfReg = 0x00000000;
254        MuxConfReg =
255                (volatile unsigned int *) ((unsigned int) PU_PD_SEL_3);
256        *MuxConfReg = 0x00000000;
257        MuxConfReg =
258                (volatile unsigned int *) ((unsigned int) PU_PD_SEL_4);
259        *MuxConfReg = 0x00000000;
260        MuxConfReg =
261                (volatile unsigned int *) ((unsigned int) PULL_DWN_CTRL_4);
262        *MuxConfReg = 0x00000000;
263        /* Turn on UART2 48 MHZ clock */
264        MuxConfReg =
265                (volatile unsigned int *) ((unsigned int) MOD_CONF_CTRL_0);
266        *MuxConfReg |= 0x40000000;
267        MuxConfReg =
268                (volatile unsigned int *) ((unsigned int) USB_OTG_CTRL);
269        /* setup for USB VBus detection OMAP161x */
270        *MuxConfReg |= 0x00040000;      /* bit 18 */
271        MuxConfReg =
272                (volatile unsigned int *) ((unsigned int) PU_PD_SEL_2);
273        /* PullUps for SD/MMC driver */
274        *MuxConfReg |= ~(0xFFFE0FFF);
275        MuxConfReg =
276                (volatile unsigned int *) ((unsigned int)COMP_MODE_CTRL_0);
277        *MuxConfReg = COMP_MODE_ENABLE;
278}
279
280/******************************************************
281 Routine: peripheral_power_enable
282 Description: Enable the power for UART1
283*******************************************************/
284void peripheral_power_enable (void)
285{
286#define UART1_48MHZ_ENABLE      ((unsigned short)0x0200)
287#define SW_CLOCK_REQUEST        ((volatile unsigned short *)0xFFFE0834)
288
289        *SW_CLOCK_REQUEST |= UART1_48MHZ_ENABLE;
290}
291
292/*
293 * Check Board Identity
294 */
295int checkboard(void)
296{
297        char *s = getenv("serial#");
298
299        puts("Board: OSK5912");
300
301        if (s != NULL) {
302                puts(", serial# ");
303                puts(s);
304        }
305        putc('\n');
306
307        return (0);
308}
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