1 /* 2 * (C) Copyright 2010 3 * Texas Instruments Incorporated, <www.ti.com> 4 * Steve Sakoman <steve@sakoman.com> 5 * 6 * See file CREDITS for list of people who contributed to this 7 * project. 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License as 11 * published by the Free Software Foundation; either version 2 of 12 * the License, or (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 22 * MA 02111-1307 USA 23 */ 24 #include <common.h> 25 #include <asm/arch/sys_proto.h> 26 #include <asm/arch/mmc_host_def.h> 27 #include <asm/arch/clocks.h> 28 #include <asm/arch/gpio.h> 29 #include <asm/gpio.h> 30 31 #include "panda_mux_data.h" 32 33 #ifdef CONFIG_USB_EHCI 34 #include <usb.h> 35 #include <asm/arch/ehci.h> 36 #include <asm/ehci-omap.h> 37 #endif 38 39 #define PANDA_ULPI_PHY_TYPE_GPIO 182 40 41 DECLARE_GLOBAL_DATA_PTR; 42 43 const struct omap_sysinfo sysinfo = { 44 "Board: OMAP4 Panda\n" 45 }; 46 47 struct omap4_scrm_regs *const scrm = (struct omap4_scrm_regs *)0x4a30a000; 48 49 /** 50 * @brief board_init 51 * 52 * @return 0 53 */ 54 int board_init(void) 55 { 56 gpmc_init(); 57 58 gd->bd->bi_arch_number = MACH_TYPE_OMAP4_PANDA; 59 gd->bd->bi_boot_params = (0x80000000 + 0x100); /* boot param addr */ 60 61 return 0; 62 } 63 64 int board_eth_init(bd_t *bis) 65 { 66 return 0; 67 } 68 69 /** 70 * @brief misc_init_r - Configure Panda board specific configurations 71 * such as power configurations, ethernet initialization as phase2 of 72 * boot sequence 73 * 74 * @return 0 75 */ 76 int misc_init_r(void) 77 { 78 int phy_type; 79 u32 auxclk, altclksrc; 80 81 /* EHCI is not supported on ES1.0 */ 82 if (omap_revision() == OMAP4430_ES1_0) 83 return 0; 84 85 gpio_direction_input(PANDA_ULPI_PHY_TYPE_GPIO); 86 phy_type = gpio_get_value(PANDA_ULPI_PHY_TYPE_GPIO); 87 88 if (phy_type == 1) { 89 /* ULPI PHY supplied by auxclk3 derived from sys_clk */ 90 debug("ULPI PHY supplied by auxclk3\n"); 91 92 auxclk = readl(&scrm->auxclk3); 93 /* Select sys_clk */ 94 auxclk &= ~AUXCLK_SRCSELECT_MASK; 95 auxclk |= AUXCLK_SRCSELECT_SYS_CLK << AUXCLK_SRCSELECT_SHIFT; 96 /* Set the divisor to 2 */ 97 auxclk &= ~AUXCLK_CLKDIV_MASK; 98 auxclk |= AUXCLK_CLKDIV_2 << AUXCLK_CLKDIV_SHIFT; 99 /* Request auxilary clock #3 */ 100 auxclk |= AUXCLK_ENABLE_MASK; 101 102 writel(auxclk, &scrm->auxclk3); 103 } else { 104 /* ULPI PHY supplied by auxclk1 derived from PER dpll */ 105 debug("ULPI PHY supplied by auxclk1\n"); 106 107 auxclk = readl(&scrm->auxclk1); 108 /* Select per DPLL */ 109 auxclk &= ~AUXCLK_SRCSELECT_MASK; 110 auxclk |= AUXCLK_SRCSELECT_PER_DPLL << AUXCLK_SRCSELECT_SHIFT; 111 /* Set the divisor to 16 */ 112 auxclk &= ~AUXCLK_CLKDIV_MASK; 113 auxclk |= AUXCLK_CLKDIV_16 << AUXCLK_CLKDIV_SHIFT; 114 /* Request auxilary clock #3 */ 115 auxclk |= AUXCLK_ENABLE_MASK; 116 117 writel(auxclk, &scrm->auxclk1); 118 } 119 120 altclksrc = readl(&scrm->altclksrc); 121 122 /* Activate alternate system clock supplier */ 123 altclksrc &= ~ALTCLKSRC_MODE_MASK; 124 altclksrc |= ALTCLKSRC_MODE_ACTIVE; 125 126 /* enable clocks */ 127 altclksrc |= ALTCLKSRC_ENABLE_INT_MASK | ALTCLKSRC_ENABLE_EXT_MASK; 128 129 writel(altclksrc, &scrm->altclksrc); 130 131 return 0; 132 } 133 134 void set_muxconf_regs_essential(void) 135 { 136 do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_essential, 137 sizeof(core_padconf_array_essential) / 138 sizeof(struct pad_conf_entry)); 139 140 do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array_essential, 141 sizeof(wkup_padconf_array_essential) / 142 sizeof(struct pad_conf_entry)); 143 144 if (omap_revision() >= OMAP4460_ES1_0) 145 do_set_mux(CONTROL_PADCONF_WKUP, 146 wkup_padconf_array_essential_4460, 147 sizeof(wkup_padconf_array_essential_4460) / 148 sizeof(struct pad_conf_entry)); 149 } 150 151 void set_muxconf_regs_non_essential(void) 152 { 153 do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_non_essential, 154 sizeof(core_padconf_array_non_essential) / 155 sizeof(struct pad_conf_entry)); 156 157 if (omap_revision() < OMAP4460_ES1_0) 158 do_set_mux(CONTROL_PADCONF_CORE, 159 core_padconf_array_non_essential_4430, 160 sizeof(core_padconf_array_non_essential_4430) / 161 sizeof(struct pad_conf_entry)); 162 else 163 do_set_mux(CONTROL_PADCONF_CORE, 164 core_padconf_array_non_essential_4460, 165 sizeof(core_padconf_array_non_essential_4460) / 166 sizeof(struct pad_conf_entry)); 167 168 do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array_non_essential, 169 sizeof(wkup_padconf_array_non_essential) / 170 sizeof(struct pad_conf_entry)); 171 172 if (omap_revision() < OMAP4460_ES1_0) 173 do_set_mux(CONTROL_PADCONF_WKUP, 174 wkup_padconf_array_non_essential_4430, 175 sizeof(wkup_padconf_array_non_essential_4430) / 176 sizeof(struct pad_conf_entry)); 177 } 178 179 #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_GENERIC_MMC) 180 int board_mmc_init(bd_t *bis) 181 { 182 omap_mmc_init(0, 0, 0); 183 return 0; 184 } 185 #endif 186 187 #ifdef CONFIG_USB_EHCI 188 189 static struct omap_usbhs_board_data usbhs_bdata = { 190 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, 191 .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED, 192 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED, 193 }; 194 195 int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor) 196 { 197 int ret; 198 unsigned int utmi_clk; 199 200 /* Now we can enable our port clocks */ 201 utmi_clk = readl((void *)CM_L3INIT_HSUSBHOST_CLKCTRL); 202 utmi_clk |= HSUSBHOST_CLKCTRL_CLKSEL_UTMI_P1_MASK; 203 sr32((void *)CM_L3INIT_HSUSBHOST_CLKCTRL, 0, 32, utmi_clk); 204 205 ret = omap_ehci_hcd_init(&usbhs_bdata, hccr, hcor); 206 if (ret < 0) 207 return ret; 208 209 return 0; 210 } 211 212 int ehci_hcd_stop(int index) 213 { 214 return omap_ehci_hcd_stop(); 215 } 216 #endif 217 218 /* 219 * get_board_rev() - get board revision 220 */ 221 u32 get_board_rev(void) 222 { 223 return 0x20; 224 } 225