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