board/technexion/tao3530/tao3530.c

   1 /*
   2  * Maintainer :
   3  *      Tapani Utriainen <linuxfae@technexion.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7 #include <common.h>
   8 #include <netdev.h>
   9 #include <twl4030.h>
  10 #include <asm/io.h>
  11 #include <asm/arch/mmc_host_def.h>
  12 #include <asm/arch/mem.h>
  13 #include <asm/arch/mux.h>
  14 #include <asm/arch/sys_proto.h>
  15 #include <asm/arch/gpio.h>
  16 #include <asm/gpio.h>
  17 #include <asm/mach-types.h>
  18
  19 #include <usb.h>
  20 #include <asm/ehci-omap.h>
  21
  22 #include "tao3530.h"
  23
  24 DECLARE_GLOBAL_DATA_PTR;
  25
  26 int tao3530_revision(void)
  27 {
  28         int ret = 0;
  29
  30         /* char *label argument is unused in gpio_request() */
  31         ret = gpio_request(65, "");
  32         if (ret) {
  33                 puts("Error: GPIO 65 not available\n");
  34                 goto out;
  35         }
  36         MUX_VAL(CP(GPMC_WAIT3), (IEN  | PTU | EN  | M4));
  37
  38         ret = gpio_request(1, "");
  39         if (ret) {
  40                 puts("Error: GPIO 1 not available\n");
  41                 goto out2;
  42         }
  43         MUX_VAL(CP(SYS_CLKREQ), (IEN  | PTU | EN | M4));
  44
  45         ret = gpio_direction_input(65);
  46         if (ret) {
  47                 puts("Error: GPIO 65 not available for input\n");
  48                 goto out3;
  49         }
  50
  51         ret =  gpio_direction_input(1);
  52         if (ret) {
  53                 puts("Error: GPIO 1 not available for input\n");
  54                 goto out3;
  55         }
  56
  57         ret = gpio_get_value(65) << 1 | gpio_get_value(1);
  58
  59 out3:
  60         MUX_VAL(CP(SYS_CLKREQ), (IEN  | PTU | EN | M0));
  61         gpio_free(1);
  62 out2:
  63         MUX_VAL(CP(GPMC_WAIT3), (IEN  | PTU | EN  | M0));
  64         gpio_free(65);
  65 out:
  66
  67         return ret;
  68 }
  69
  70 #ifdef CONFIG_SPL_BUILD
  71 /*
  72  * Routine: get_board_mem_timings
  73  * Description: If we use SPL then there is no x-loader nor config header
  74  * so we have to setup the DDR timings ourself on both banks.
  75  */
  76 void get_board_mem_timings(struct board_sdrc_timings *timings)
  77 {
  78 #if defined(CONFIG_SYS_BOARD_OMAP3_HA)
  79         /*
  80          * Switch baseboard LED to red upon power-on
  81          */
  82         MUX_OMAP3_HA();
  83
  84         /* Request a gpio before using it */
  85         gpio_request(111, "");
  86         /* Sets the gpio as output and its value to 1, switch LED to red */
  87         gpio_direction_output(111, 1);
  88 #endif
  89
  90         if (tao3530_revision() < 3) {
  91                 /* 256MB / Bank */
  92                 timings->mcfg = MCFG(256 << 20, 14);    /* RAS-width 14 */
  93                 timings->ctrla = HYNIX_V_ACTIMA_165;
  94                 timings->ctrlb = HYNIX_V_ACTIMB_165;
  95         } else {
  96                 /* 128MB / Bank */
  97                 timings->mcfg = MCFG(128 << 20, 13);    /* RAS-width 13 */
  98                 timings->ctrla = MICRON_V_ACTIMA_165;
  99                 timings->ctrlb = MICRON_V_ACTIMB_165;
 100         }
 101
 102         timings->mr = MICRON_V_MR_165;
 103         timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
 104 }
 105 #endif
 106
 107 /*
 108  * Routine: board_init
 109  * Description: Early hardware init.
 110  */
 111 int board_init(void)
 112 {
 113         gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
 114         /* board id for Linux */
 115         gd->bd->bi_arch_number = MACH_TYPE_OMAP3_TAO3530;
 116         /* boot param addr */
 117         gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
 118
 119         return 0;
 120 }
 121
 122 /*
 123  * Routine: misc_init_r
 124  * Description: Configure board specific parts
 125  */
 126 int misc_init_r(void)
 127 {
 128         struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
 129         struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
 130
 131         twl4030_power_init();
 132         twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
 133
 134         /* Configure GPIOs to output */
 135         /* GPIO23 */
 136         writel(~(GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);
 137         writel(~(GPIO31 | GPIO30 | GPIO22 | GPIO21 |
 138                  GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe);
 139
 140         /* Set GPIOs */
 141         writel(GPIO10 | GPIO8 | GPIO2 | GPIO1,
 142                &gpio6_base->setdataout);
 143         writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
 144                GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);
 145
 146         switch (tao3530_revision()) {
 147         case 0:
 148                 puts("TAO-3530 REV Reserve 1\n");
 149                 break;
 150         case 1:
 151                 puts("TAO-3530 REV Reserve 2\n");
 152                 break;
 153         case 2:
 154                 puts("TAO-3530 REV Cx\n");
 155                 break;
 156         case 3:
 157                 puts("TAO-3530 REV Ax/Bx\n");
 158                 break;
 159         default:
 160                 puts("Unknown board revision\n");
 161         }
 162
 163         omap_die_id_display();
 164
 165         return 0;
 166 }
 167
 168 /*
 169  * Routine: set_muxconf_regs
 170  * Description: Setting up the configuration Mux registers specific to the
 171  *              hardware. Many pins need to be moved from protect to primary
 172  *              mode.
 173  */
 174 void set_muxconf_regs(void)
 175 {
 176         MUX_TAO3530();
 177 #if defined(CONFIG_SYS_BOARD_OMAP3_HA)
 178         MUX_OMAP3_HA();
 179 #endif
 180 }
 181
 182 #if defined(CONFIG_MMC)
 183 int board_mmc_init(bd_t *bis)
 184 {
 185         omap_mmc_init(0, 0, 0, -1, -1);
 186
 187         return 0;
 188 }
 189 #endif
 190
 191 #if defined(CONFIG_MMC)
 192 void board_mmc_power_init(void)
 193 {
 194         twl4030_power_mmc_init(0);
 195 }
 196 #endif
 197
 198 #if defined(CONFIG_USB_EHCI) && !defined(CONFIG_SPL_BUILD)
 199 /* Call usb_stop() before starting the kernel */
 200 void show_boot_progress(int val)
 201 {
 202         if (val == BOOTSTAGE_ID_RUN_OS)
 203                 usb_stop();
 204 }
 205
 206 static struct omap_usbhs_board_data usbhs_bdata = {
 207         .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
 208         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 209         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED
 210 };
 211
 212 int ehci_hcd_init(int index, enum usb_init_type init,
 213                   struct ehci_hccr **hccr, struct ehci_hcor **hcor)
 214 {
 215         return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
 216 }
 217
 218 int ehci_hcd_stop(int index)
 219 {
 220         return omap_ehci_hcd_stop();
 221 }
 222 #endif /* CONFIG_USB_EHCI */