3 * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
6 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
7 * Marius Groeger <mgroeger@sysgo.de>
9 * See file CREDITS for list of people who contributed to this
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
31 #include <asm/arch/pxa-regs.h>
33 /* ------------------------------------------------------------------------- */
35 static void init_DA9030(void);
38 * Miscelaneous platform dependent initialisations
43 DECLARE_GLOBAL_DATA_PTR;
45 /* memory and cpu-speed are setup before relocation */
46 /* so we do _nothing_ here */
48 /* arch number of Lubbock-Board mk@tbd: fix this! */
49 gd->bd->bi_arch_number = MACH_TYPE_LUBBOCK;
51 /* adress of boot parameters */
52 gd->bd->bi_boot_params = 0xa0000100;
57 int board_late_init(void)
59 setenv("stdout", "serial");
60 setenv("stderr", "serial");
68 DECLARE_GLOBAL_DATA_PTR;
70 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
71 gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
72 gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
73 gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
74 gd->bd->bi_dram[2].start = PHYS_SDRAM_3;
75 gd->bd->bi_dram[2].size = PHYS_SDRAM_3_SIZE;
76 gd->bd->bi_dram[3].start = PHYS_SDRAM_4;
77 gd->bd->bi_dram[3].size = PHYS_SDRAM_4_SIZE;
82 /* initialize the DA9030 Power Controller */
83 static void init_DA9030()
85 uchar addr = (uchar) DA9030_I2C_ADDR, val = 0;
87 /* setup I2C GPIO's */
88 GPIO32 = 0x801; /* SCL = Alt. Fkt. 1 */
89 GPIO33 = 0x801; /* SDA = Alt. Fkt. 1 */
91 /* rising Edge on EXTON */
92 GPIO17 = 0xc800; /* enable pullup */
93 GPDR0 |= (1<<17); /* GPIO17 is output */
95 GPCR0 = (1<<17); /* drive GPIO17 low */
97 GPSR0 = (1<<17); /* drive GPIO17 high */
98 #if CFG_DA9030_EXTON_DELAY
99 udelay((unsigned long) CFG_DA9030_EXTON_DELAY); /* wait for DA9030 */
101 GPCR0 = (1<<17); /* drive GPIO17 low */
102 GPIO17 = 0x8800; /* disable pullup */
104 /* reset the watchdog and go active (0xec) */
105 val = (SYS_CONTROL_A_HWRES_ENABLE |
107 SYS_CONTROL_A_WDOG_ACTION |
108 SYS_CONTROL_A_WATCHDOG);
110 i2c_reg_write(addr, SYS_CONTROL_A, val);
112 i2c_reg_write(addr, REG_CONTROL_1_97, 0xfd); /* disable LDO1, enable LDO6 */
113 i2c_reg_write(addr, LDO2_3, 0xd1); /* LDO2 =1,9V, LDO3=3,1V */
114 i2c_reg_write(addr, LDO4_5, 0xcc); /* LDO2 =1,9V, LDO3=3,1V */
115 i2c_reg_write(addr, LDO6_SIMCP, 0x3e); /* LDO6=3,2V, SIMCP = 5V support */
116 i2c_reg_write(addr, LDO7_8, 0xc9); /* LDO7=2,7V, LDO8=3,0V */
117 i2c_reg_write(addr, LDO9_12, 0xec); /* LDO9=3,0V, LDO12=3,2V */
118 i2c_reg_write(addr, BUCK, 0x0c); /* Buck=1.2V */
119 i2c_reg_write(addr, REG_CONTROL_2_98, 0x7f); /* All LDO'S on 8,9,10,11,12,14 */
120 i2c_reg_write(addr, LDO_10_11, 0xcc); /* LDO10=3.0V LDO11=3.0V */
121 i2c_reg_write(addr, LDO_15, 0xae); /* LDO15=1.8V, dislock first 3bit */
122 i2c_reg_write(addr, LDO_14_16, 0x05); /* LDO14=2.8V, LDO16=NB */
123 i2c_reg_write(addr, LDO_18_19, 0x9c); /* LDO18=3.0V, LDO19=2.7V */
124 i2c_reg_write(addr, LDO_17_SIMCP0, 0x2c); /* LDO17=3.0V, SIMCP=3V support */
125 i2c_reg_write(addr, BUCK2_DVC1, 0x9a); /* Buck2=1.5V plus Update support of 520 MHz */
126 i2c_reg_write(addr, REG_CONTROL_2_18, 0x43); /* Ball on */
127 i2c_reg_write(addr, MISC_CONTROLB, 0x08); /* session valid enable */
128 i2c_reg_write(addr, USBPUMP, 0xc1); /* start pump, ignore HW signals */
130 val = i2c_reg_read(addr, STATUS);
131 if(val & STATUS_CHDET)
132 printf("Charger detected, turning on LED.\n");
134 printf("No charger detetected.\n");
135 /* undervoltage? print error and power down */
141 /* reset the DA9030 watchdog */
142 void hw_watchdog_reset(void)
144 uchar addr = (uchar) DA9030_I2C_ADDR, val = 0;
145 val = i2c_reg_read(addr, SYS_CONTROL_A);
146 val |= SYS_CONTROL_A_WATCHDOG;
147 i2c_reg_write(addr, SYS_CONTROL_A, val);