board/ti/omap5912osk/omap5912osk.c

   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  * SPDX-License-Identifier:     GPL-2.0+
  18  */
  19
  20 #include <common.h>
  21 #include <netdev.h>
  22 #if defined(CONFIG_OMAP1610)
  23 #include <./configs/omap1510.h>
  24 #endif
  25
  26 DECLARE_GLOBAL_DATA_PTR;
  27
  28 void flash__init (void);
  29 void ether__init (void);
  30 void set_muxconf_regs (void);
  31 void peripheral_power_enable (void);
  32
  33 #define COMP_MODE_ENABLE ((unsigned int)0x0000EAEF)
  34
  35 static inline void delay (unsigned long loops)
  36 {
  37         __asm__ volatile ("1:\n"
  38                 "subs %0, %1, #1\n"
  39                 "bne 1b":"=r" (loops):"0" (loops));
  40 }
  41
  42 /*
  43  * Miscellaneous platform dependent initialisations
  44  */
  45
  46 int board_init (void)
  47 {
  48         gd->bd->bi_arch_number = MACH_TYPE_OMAP_OSK;
  49
  50         /* adress of boot parameters */
  51         gd->bd->bi_boot_params = 0x10000100;
  52
  53         flash__init();
  54         ether__init();
  55
  56         return 0;
  57 }
  58
  59 void s_init(void)
  60 {
  61         /* Configure MUX settings */
  62         set_muxconf_regs ();
  63         peripheral_power_enable ();
  64
  65 /* this speeds up your boot a quite a bit.  However to make it
  66  *  work, you need make sure your kernel startup flush bug is fixed.
  67  *  ... rkw ...
  68  */
  69         icache_enable ();
  70 }
  71
  72 /******************************
  73  Routine:
  74  Description:
  75 ******************************/
  76 void flash__init (void)
  77 {
  78 #define EMIFS_GlB_Config_REG 0xfffecc0c
  79         unsigned int regval;
  80         regval = *((volatile unsigned int *) EMIFS_GlB_Config_REG);
  81         /* Turn off write protection for flash devices. */
  82         regval = regval | 0x0001;
  83         *((volatile unsigned int *) EMIFS_GlB_Config_REG) = regval;
  84 }
  85 /*************************************************************
  86  Routine:ether__init
  87  Description: take the Ethernet controller out of reset and wait
  88                            for the EEPROM load to complete.
  89 *************************************************************/
  90 void ether__init (void)
  91 {
  92 #define ETH_CONTROL_REG 0x0480000b
  93         int i;
  94
  95         *((volatile unsigned short *) 0xfffece08) = 0x03FF;
  96         *((volatile unsigned short *) 0xfffb3824) = 0x8000;
  97         *((volatile unsigned short *) 0xfffb3830) = 0x0000;
  98         *((volatile unsigned short *) 0xfffb3834) = 0x0009;
  99         *((volatile unsigned short *) 0xfffb3838) = 0x0009;
 100         *((volatile unsigned short *) 0xfffb3818) = 0x0002;
 101         *((volatile unsigned short *) 0xfffb382C) = 0x0048;
 102         *((volatile unsigned short *) 0xfffb3824) = 0x8603;
 103         udelay (3);
 104         for (i=0;i<2000;i++);
 105         *((volatile unsigned short *) 0xfffb381C) = 0x6610;
 106         udelay (30);
 107         for (i=0;i<10000;i++);
 108
 109         *((volatile unsigned char *) ETH_CONTROL_REG) &= ~0x01;
 110         udelay (3);
 111
 112
 113 }
 114
 115 /******************************
 116  Routine:
 117  Description:
 118 ******************************/
 119 int dram_init(void)
 120 {
 121         gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
 122
 123         return 0;
 124 }
 125
 126 void dram_init_banksize(void)
 127 {
 128         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
 129         gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
 130 }
 131
 132 /******************************************************
 133  Routine: set_muxconf_regs
 134  Description: Setting up the configuration Mux registers
 135                           specific to the hardware
 136 *******************************************************/
 137 void set_muxconf_regs (void)
 138 {
 139         volatile unsigned int *MuxConfReg;
 140         /* set each registers to its reset value; */
 141         MuxConfReg =
 142                 (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_0);
 143         /* setup for UART1 */
 144         *MuxConfReg &= ~(0x02000000);   /* bit 25 */
 145         /* setup for UART2 */
 146         *MuxConfReg &= ~(0x01000000);   /* bit 24 */
 147         /* Disable Uwire CS Hi-Z */
 148         *MuxConfReg |= 0x08000000;
 149         MuxConfReg =
 150                 (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_3);
 151         *MuxConfReg = 0x00000000;
 152         MuxConfReg =
 153                 (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_4);
 154         *MuxConfReg = 0x00000000;
 155         MuxConfReg =
 156                 (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_5);
 157         *MuxConfReg = 0x00000000;
 158         MuxConfReg =
 159                 (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_6);
 160         /*setup mux for UART3 */
 161         *MuxConfReg |= 0x00000001;      /* bit3, 1, 0 (mux0 5,5,26) */
 162         *MuxConfReg &= ~0x0000003e;
 163         MuxConfReg =
 164                 (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_7);
 165         *MuxConfReg = 0x00000000;
 166         MuxConfReg =
 167                 (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_8);
 168         /* Disable Uwire CS Hi-Z */
 169         *MuxConfReg |= 0x00001200;      /*bit 9 for CS0 12 for CS3 */
 170         MuxConfReg =
 171                 (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_9);
 172         /*  Need to turn on bits 21 and 12 in FUNC_MUX_CTRL_9 so the  */
 173         /*  hardware will actually use TX and RTS based on bit 25 in  */
 174         /*  FUNC_MUX_CTRL_0.  I told you this thing was screwy!  */
 175         *MuxConfReg |= 0x00201000;
 176         MuxConfReg =
 177                 (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_A);
 178         *MuxConfReg = 0x00000000;
 179         MuxConfReg =
 180                 (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_B);
 181         *MuxConfReg = 0x00000000;
 182         MuxConfReg =
 183                 (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_C);
 184         /* setup for UART2 */
 185         /*  Need to turn on bits 27 and 24 in FUNC_MUX_CTRL_C so the  */
 186         /*  hardware will actually use TX and RTS based on bit 24 in  */
 187         /*  FUNC_MUX_CTRL_0. */
 188         *MuxConfReg |= 0x09000000;
 189         MuxConfReg =
 190         (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_D);
 191         *MuxConfReg |= 0x00000020;
 192         MuxConfReg =
 193                 (volatile unsigned int *) ((unsigned int) PULL_DWN_CTRL_0);
 194         *MuxConfReg = 0x00000000;
 195         MuxConfReg =
 196                 (volatile unsigned int *) ((unsigned int) PULL_DWN_CTRL_1);
 197         *MuxConfReg = 0x00000000;
 198         /* mux setup for SD/MMC driver */
 199         MuxConfReg =
 200                 (volatile unsigned int *) ((unsigned int) PULL_DWN_CTRL_2);
 201         *MuxConfReg &= 0xFFFE0FFF;
 202         MuxConfReg =
 203                 (volatile unsigned int *) ((unsigned int) PULL_DWN_CTRL_3);
 204         *MuxConfReg = 0x00000000;
 205         MuxConfReg =
 206                 (volatile unsigned int *) ((unsigned int) MOD_CONF_CTRL_0);
 207         /* bit 13 for MMC2 XOR_CLK */
 208         *MuxConfReg &= ~(0x00002000);
 209         /* bit 29 for UART 1 */
 210         *MuxConfReg &= ~(0x00002000);
 211         MuxConfReg =
 212                 (volatile unsigned int *) ((unsigned int) FUNC_MUX_CTRL_0);
 213         /* Configure for USB. Turn on VBUS_CTRL and VBUS_MODE. */
 214         *MuxConfReg |= 0x000C0000;
 215         MuxConfReg =
 216                 (volatile unsigned int *) ((unsigned int)USB_TRANSCEIVER_CTRL);
 217         *MuxConfReg &= ~(0x00000070);
 218         *MuxConfReg &= ~(0x00000008);
 219         *MuxConfReg |= 0x00000003;
 220         *MuxConfReg |= 0x00000180;
 221         MuxConfReg =
 222                 (volatile unsigned int *) ((unsigned int) MOD_CONF_CTRL_0);
 223         /* bit 17, software controls VBUS */
 224         *MuxConfReg &= ~(0x00020000);
 225         /* Enable USB 48 and 12M clocks */
 226         *MuxConfReg |= 0x00000200;
 227         *MuxConfReg &= ~(0x00000180);
 228         /*2.75V for MMCSDIO1 */
 229         MuxConfReg =
 230                 (volatile unsigned int *) ((unsigned int) VOLTAGE_CTRL_0);
 231         *MuxConfReg = 0x00001FE7;
 232         MuxConfReg =
 233                 (volatile unsigned int *) ((unsigned int) PU_PD_SEL_0);
 234         *MuxConfReg = 0x00000000;
 235         MuxConfReg =
 236                 (volatile unsigned int *) ((unsigned int) PU_PD_SEL_1);
 237         *MuxConfReg = 0x00000000;
 238         MuxConfReg =
 239                 (volatile unsigned int *) ((unsigned int) PU_PD_SEL_2);
 240         *MuxConfReg = 0x00000000;
 241         MuxConfReg =
 242                 (volatile unsigned int *) ((unsigned int) PU_PD_SEL_3);
 243         *MuxConfReg = 0x00000000;
 244         MuxConfReg =
 245                 (volatile unsigned int *) ((unsigned int) PU_PD_SEL_4);
 246         *MuxConfReg = 0x00000000;
 247         MuxConfReg =
 248                 (volatile unsigned int *) ((unsigned int) PULL_DWN_CTRL_4);
 249         *MuxConfReg = 0x00000000;
 250         /* Turn on UART2 48 MHZ clock */
 251         MuxConfReg =
 252                 (volatile unsigned int *) ((unsigned int) MOD_CONF_CTRL_0);
 253         *MuxConfReg |= 0x40000000;
 254         MuxConfReg =
 255                 (volatile unsigned int *) ((unsigned int) USB_OTG_CTRL);
 256         /* setup for USB VBus detection OMAP161x */
 257         *MuxConfReg |= 0x00040000;      /* bit 18 */
 258         MuxConfReg =
 259                 (volatile unsigned int *) ((unsigned int) PU_PD_SEL_2);
 260         /* PullUps for SD/MMC driver */
 261         *MuxConfReg |= ~(0xFFFE0FFF);
 262         MuxConfReg =
 263                 (volatile unsigned int *) ((unsigned int)COMP_MODE_CTRL_0);
 264         *MuxConfReg = COMP_MODE_ENABLE;
 265 }
 266
 267 /******************************************************
 268  Routine: peripheral_power_enable
 269  Description: Enable the power for UART1
 270 *******************************************************/
 271 void peripheral_power_enable (void)
 272 {
 273 #define UART1_48MHZ_ENABLE      ((unsigned short)0x0200)
 274 #define SW_CLOCK_REQUEST        ((volatile unsigned short *)0xFFFE0834)
 275
 276         *SW_CLOCK_REQUEST |= UART1_48MHZ_ENABLE;
 277 }
 278
 279 /*
 280  * Check Board Identity
 281  */
 282 int checkboard(void)
 283 {
 284         char buf[64];
 285         int i = getenv_f("serial#", buf, sizeof(buf));
 286
 287         puts("Board: OSK5912");
 288
 289         if (i > 0) {
 290                 puts(", serial# ");
 291                 puts(buf);
 292         }
 293         putc('\n');
 294
 295         return (0);
 296 }
 297
 298 #ifdef CONFIG_CMD_NET
 299 int board_eth_init(bd_t *bis)
 300 {
 301         int rc = 0;
 302 #ifdef CONFIG_LAN91C96
 303         rc = lan91c96_initialize(0, CONFIG_LAN91C96_BASE);
 304 #endif
 305         return rc;
 306 }
 307 #endif