| /* |
| * Copyright (c) 2014 Qualcomm Atheros, Inc. |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| #include <common.h> |
| #include <command.h> |
| #include <asm/mipsregs.h> |
| #include <asm/addrspace.h> |
| #include <config.h> |
| #include <version.h> |
| #include "ar7240_soc.h" |
| |
| extern void ar7240_ddr_initial_config(uint32_t refresh); |
| extern int ar7240_ddr_find_size(void); |
| extern void hornet_ddr_tap_init(void); |
| |
| #ifdef CONFIG_HORNET_EMU |
| extern void ar7240_ddr_initial_config_for_fpga(void); |
| #endif |
| |
| void |
| ar7240_usb_initial_config(void) |
| { |
| #ifndef CONFIG_HORNET_EMU |
| ar7240_reg_wr_nf(AR7240_USB_PLL_CONFIG, 0x0a04081e); |
| ar7240_reg_wr_nf(AR7240_USB_PLL_CONFIG, 0x0804081e); |
| #endif |
| } |
| |
| void |
| ar7240_usb_otp_config(void) |
| { |
| unsigned int addr, reg_val, reg_usb = 0; |
| int time_out, status, usb_valid; |
| |
| for (addr = 0xb8114014; ;addr -= 0x10) { |
| status = 0; |
| time_out = 20; |
| |
| reg_val = ar7240_reg_rd(addr); |
| |
| while ((time_out > 0) && (~status)) { |
| if ((( ar7240_reg_rd(0xb8115f18)) & 0x7) == 0x4) { |
| status = 1; |
| } else { |
| status = 0; |
| } |
| time_out--; |
| } |
| |
| reg_val = ar7240_reg_rd(0xb8115f1c); |
| if ((reg_val & 0x80) == 0x80){ |
| usb_valid = 1; |
| reg_usb = reg_val & 0x000000ff; |
| } |
| |
| if (addr == 0xb8114004) { |
| break; |
| } |
| } |
| |
| if (usb_valid) { |
| reg_val = ar7240_reg_rd(0xb8116c88); |
| reg_val &= ~0x03f00000; |
| reg_val |= (reg_usb & 0xf) << 22; |
| ar7240_reg_wr(0xb8116c88, reg_val); |
| } |
| } |
| |
| void ar7240_gpio_config(void) |
| { |
| /* Disable clock obs |
| * clk_obs1(gpio13/bit8), clk_obs2(gpio14/bit9), clk_obs3(gpio15/bit10), |
| * clk_obs4(gpio16/bit11), clk_obs5(gpio17/bit12) |
| * clk_obs0(gpio1/bit19), 6(gpio11/bit20) |
| */ |
| ar7240_reg_wr (AR7240_GPIO_FUNC, |
| (ar7240_reg_rd(AR7240_GPIO_FUNC) & ~((0x1f<<8)|(0x3<<19)))); |
| |
| /* Enable eth Switch LEDs */ |
| ar7240_reg_wr (AR7240_GPIO_FUNC, (ar7240_reg_rd(AR7240_GPIO_FUNC) | (0x1f<<3))); |
| |
| /* Clear AR7240_GPIO_FUNC BIT2 to ensure that software can control LED5(GPIO16) and LED6(GPIO17) */ |
| ar7240_reg_wr (AR7240_GPIO_FUNC, (ar7240_reg_rd(AR7240_GPIO_FUNC) & ~(0x1<<2))); |
| |
| /* Set HORNET_BOOTSTRAP_STATUS BIT18 to ensure that software can control GPIO26 and GPIO27 */ |
| //ar7240_reg_wr (HORNET_BOOTSTRAP_STATUS, (ar7240_reg_rd(HORNET_BOOTSTRAP_STATUS) | (0x1<<18))); |
| } |
| |
| int |
| ar7240_mem_config(void) |
| { |
| #ifndef COMPRESSED_UBOOT |
| unsigned int tap_val1, tap_val2; |
| #endif |
| #ifdef CONFIG_HORNET_EMU |
| ar7240_ddr_initial_config_for_fpga(); |
| #else |
| //ar7240_ddr_initial_config(CFG_DDR_REFRESH_VAL); |
| #endif |
| |
| /* Default tap values for starting the tap_init*/ |
| ar7240_reg_wr (AR7240_DDR_TAP_CONTROL0, CFG_DDR_TAP0_VAL); |
| ar7240_reg_wr (AR7240_DDR_TAP_CONTROL1, CFG_DDR_TAP1_VAL); |
| |
| ar7240_gpio_config(); |
| |
| #ifndef COMPRESSED_UBOOT |
| #ifndef CONFIG_HORNET_EMU |
| ar7240_ddr_tap_init(); |
| |
| tap_val1 = ar7240_reg_rd(0xb800001c); |
| tap_val2 = ar7240_reg_rd(0xb8000020); |
| printf("#### TAP VALUE 1 = %x, 2 = %x\n",tap_val1, tap_val2); |
| #endif |
| #endif |
| |
| //ar7240_usb_initial_config(); |
| ar7240_usb_otp_config(); |
| |
| hornet_ddr_tap_init(); |
| |
| return (ar7240_ddr_find_size()); |
| } |
| |
| long int initdram(int board_type) |
| { |
| return (ar7240_mem_config()); |
| } |
| |
| #ifdef COMPRESSED_UBOOT |
| int checkboard (char *board_string) |
| { |
| #if (BOARD_STRING == WAPI) |
| strcpy(board_string, "AP121 (ar9331) U-boot"); |
| #else |
| strcpy(board_string, "AP121-2MB (ar9330) U-boot"); |
| #endif |
| return 0; |
| } |
| #else |
| int checkboard (void) |
| { |
| printf("AP121 (ar9330) U-boot\n"); |
| return 0; |
| } |
| #endif /* #ifdef COMPRESSED_UBOOT */ |