3 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
4 * Marius Groeger <mgroeger@sysgo.de>
7 * David Mueller, ELSOFT AG, <d.mueller@elsoft.ch>
10 * Texas Instruments, <www.ti.com>
11 * Kshitij Gupta <Kshitij@ti.com>
13 * See file CREDITS for list of people who contributed to this
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License as
18 * published by the Free Software Foundation; either version 2 of
19 * the License, or (at your option) any later version.
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
33 #if defined(CONFIG_OMAP730)
34 #include <./configs/omap730.h>
37 int test_boot_mode(void);
38 void spin_up_leds(void);
39 void flash__init (void);
40 void ether__init (void);
41 void set_muxconf_regs (void);
42 void peripheral_power_enable (void);
44 #define FLASH_ON_CS0 1
45 #define FLASH_ON_CS3 0
47 static inline void delay (unsigned long loops)
49 __asm__ volatile ("1:\n"
51 "bne 1b":"=r" (loops):"0" (loops));
54 int test_boot_mode(void)
56 /* Check for CS0 and CS3 address decode swapping */
57 if (*((volatile int *)EMIFS_CONFIG) & 0x00000002)
63 /* Toggle backup LED indication */
64 void toggle_backup_led(void)
66 static int backupLEDState = 0; /* Init variable so that the LED will be ON the first time */
67 volatile unsigned int *IOConfReg;
70 IOConfReg = (volatile unsigned int *) ((unsigned int) OMAP730_GPIO_BASE_5 + GPIO_DATA_OUTPUT);
72 if (backupLEDState != 0) {
73 *IOConfReg &= (0xFFFFEFFF);
76 *IOConfReg |= (0x00001000);
82 * Miscellaneous platform dependent initialisations
87 DECLARE_GLOBAL_DATA_PTR;
89 /* arch number of OMAP 730 P2 Board - Same as the Innovator! */
90 gd->bd->bi_arch_number = MACH_TYPE_OMAP_PERSEUS2;
92 /* adress of boot parameters */
93 gd->bd->bi_boot_params = 0x10000100;
95 /* Configure MUX settings */
98 peripheral_power_enable ();
100 /* Backup LED indication via GPIO_140 -> Red led if MUX correctly setup */
103 /* Hold GSM in reset until needed */
104 *((volatile unsigned short *)M_CTL) &= ~1;
107 * CSx timings, GPIO Mux ... setup
110 /* Flash: CS0 timings setup */
111 *((volatile unsigned int *) FLASH_CFG_0) = 0x0000fff3;
112 *((volatile unsigned int *) FLASH_ACFG_0_1) = 0x00000088;
114 /* Ethernet support trough the debug board */
115 /* CS1 timings setup */
116 *((volatile unsigned int *) FLASH_CFG_1) = 0x0000fff3;
117 *((volatile unsigned int *) FLASH_ACFG_0_1) = 0x00000000;
119 /* this speeds up your boot a quite a bit. However to make it
120 * work, you need make sure your kernel startup flush bug is fixed.
131 int misc_init_r (void)
133 /* currently empty */
137 /******************************
140 ******************************/
141 void flash__init (void)
145 regval = *((volatile unsigned int *) EMIFS_CONFIG);
146 /* Turn off write protection for flash devices. */
147 regval = regval | 0x0001;
148 *((volatile unsigned int *) EMIFS_CONFIG) = regval;
151 /*************************************************************
153 Description: take the Ethernet controller out of reset and wait
154 for the EEPROM load to complete.
155 *************************************************************/
156 void ether__init (void)
158 #define LAN_RESET_REGISTER 0x0400001c
160 *((volatile unsigned short *) LAN_RESET_REGISTER) = 0x0000;
162 *((volatile unsigned short *) LAN_RESET_REGISTER) = 0x0001;
164 } while (*((volatile unsigned short *) LAN_RESET_REGISTER) != 0x0001);
167 *((volatile unsigned short *) LAN_RESET_REGISTER) = 0x0000;
169 } while (*((volatile unsigned short *) LAN_RESET_REGISTER) != 0x0000);
171 #define ETH_CONTROL_REG 0x0400030b
173 *((volatile unsigned char *) ETH_CONTROL_REG) &= ~0x01;
177 /******************************
180 ******************************/
183 DECLARE_GLOBAL_DATA_PTR;
185 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
186 gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
191 /******************************************************
192 Routine: set_muxconf_regs
193 Description: Setting up the configuration Mux registers
194 specific to the hardware
195 *******************************************************/
196 void set_muxconf_regs (void)
198 volatile unsigned int *MuxConfReg;
199 /* set each registers to its reset value; */
202 * Backup LED Indication
205 /* Configure MUXed pin. Mode 6: GPIO_140 */
206 MuxConfReg = (volatile unsigned int *) (PERSEUS2_IO_CONF10);
207 *MuxConfReg &= (0xFFFFFF1F); /* Clear D_MPU_LPG1 */
208 *MuxConfReg |= 0x000000C0; /* Set D_MPU_LPG1 to 0x6 */
210 /* Configure GPIO_140 as output */
211 MuxConfReg = (volatile unsigned int *) ((unsigned int) OMAP730_GPIO_BASE_5 + GPIO_DIRECTION_CONTROL);
212 *MuxConfReg &= (0xFFFFEFFF); /* Clear direction (output) for GPIO 140 */
215 * Configure GPIOs for battery charge & feedback
218 /* Configure MUXed pin. Mode 6: GPIO_35 */
219 MuxConfReg = (volatile unsigned int *) (PERSEUS2_IO_CONF3);
220 *MuxConfReg &= 0xFFFFFFF1; /* Clear M_CLK_OUT */
221 *MuxConfReg |= 0x0000000C; /* Set M_CLK_OUT = 0x6 (GPIOs) */
223 /* Configure MUXed pin. Mode 6: GPIO_72,73,74 */
224 MuxConfReg = (volatile unsigned int *) (PERSEUS2_IO_CONF5);
225 *MuxConfReg &= 0xFFFF1FFF; /* Clear D_DDR */
226 *MuxConfReg |= 0x0000C000; /* Set D_DDR = 0x6 (GPIOs) */
228 MuxConfReg = (volatile unsigned int *) ((unsigned int) OMAP730_GPIO_BASE_3 + GPIO_DIRECTION_CONTROL);
229 *MuxConfReg |= 0x00000100; /* Configure GPIO_72 as input */
230 *MuxConfReg &= 0xFFFFFDFF; /* Configure GPIO_73 as output */
233 * Allow battery charge
236 MuxConfReg = (volatile unsigned int *) ((unsigned int) OMAP730_GPIO_BASE_3 + GPIO_DATA_OUTPUT);
237 *MuxConfReg &= (0xFFFFFDFF); /* Clear GPIO_73 pin */
240 * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
241 * It is used as the Ethernet controller interrupt
243 MuxConfReg = (volatile unsigned int *) (PERSEUS2_IO_CONF9);
244 *MuxConfReg &= 0x1FFFFFFF;
247 /******************************************************
248 Routine: peripheral_power_enable
249 Description: Enable the power for UART1
250 *******************************************************/
251 void peripheral_power_enable (void)
253 volatile unsigned int *MuxConfReg;
256 /* Set up pins used by UART */
258 /* Start UART clock (48MHz) */
259 MuxConfReg = (volatile unsigned int *) (PERSEUS_PCC_CONF_REG);
260 *MuxConfReg &= (0xFFFFFFF7);
261 *MuxConfReg |= (0x00000008);
263 /* Get the UART pin in mode0 */
264 MuxConfReg = (volatile unsigned int *) (PERSEUS2_IO_CONF3);
265 *MuxConfReg &= (0xFF1FFFFF);
266 *MuxConfReg &= (0xF1FFFFFF);