| /* |
| * (C) Copyright 2010 Quantenna Communications 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 "ruby.h" |
| |
| #ifndef CONFIG_CMD_INTR |
| |
| void board_intr_init(void) |
| { |
| } |
| |
| #else |
| |
| void board_intr_init(void) |
| { |
| /* Symbol defined in linker script */ |
| extern unsigned long __vectors_start; |
| |
| /* Instruct CPU where vectors are placed */ |
| write_new_aux_reg(ARC_REG_INTR_VEC_BASE, &__vectors_start); |
| |
| /* Disable all interrupts */ |
| write_new_aux_reg(ARC_REG_INTR_ENABLE, 0); |
| } |
| |
| //------------------------------------------------------- |
| |
| #define read_ilink1() \ |
| ({ unsigned int __ret; \ |
| __asm__ __volatile__("mov %0, ilink1" : "=r"(__ret));\ |
| __ret; \ |
| }) |
| |
| #define read_ilink2() \ |
| ({ unsigned int __ret; \ |
| __asm__ __volatile__("mov %0, ilink2" : "=r"(__ret));\ |
| __ret; \ |
| }) |
| |
| #define read_eret() \ |
| ({ unsigned int __ret; \ |
| __asm__ __volatile__("lr %0, [eret]" : "=r"(__ret));\ |
| __ret;\ |
| }) |
| |
| //------------------------------------------------------- |
| |
| static void intr_EV_do_reset(const char *descr) |
| { |
| char s[128]; /* unfortunately uboot does not have snprintf(), so make sure buffer is big enough */ |
| sprintf(s, "%s: ilink1=0x%x ilink2=0x%x eret=0x%x", descr, read_ilink1(), read_ilink2(), read_eret()); |
| s[sizeof(s) - 1] = '\0'; |
| |
| board_reset(s); |
| } |
| |
| void intr_EV_NotImpl(void) |
| { |
| intr_EV_do_reset("EV_NotImpl"); |
| } |
| |
| void intr_EV_Reset(void) |
| { |
| intr_EV_do_reset("EV_Reset"); |
| } |
| |
| void intr_EV_MemErr(void) |
| { |
| intr_EV_do_reset("EV_MemErr"); |
| } |
| |
| void intr_EV_InstrErr(void) |
| { |
| intr_EV_do_reset("EV_InstrErr"); |
| } |
| |
| void intr_EV_MachineCheck(void) |
| { |
| intr_EV_do_reset("EV_MachineCheck"); |
| } |
| |
| void intr_EV_TLBMissI(void) |
| { |
| intr_EV_do_reset("EV_TLBMissI"); |
| } |
| |
| void intr_EV_TLBMissD(void) |
| { |
| intr_EV_do_reset("EV_TLBMissD"); |
| } |
| |
| void intr_EV_TLBProtV(void) |
| { |
| intr_EV_do_reset("EV_TLBProtV"); |
| } |
| |
| void intr_EV_PrivilegeV(void) |
| { |
| intr_EV_do_reset("EV_PrivilegeV"); |
| } |
| |
| void intr_EV_Trap(void) |
| { |
| intr_EV_do_reset("EV_Trap"); |
| } |
| |
| void intr_EV_Extension(void) |
| { |
| intr_EV_do_reset("EV_Extension"); |
| } |
| |
| static int do_xr_test(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) |
| { |
| extern unsigned long read_xr(unsigned long reg); |
| unsigned long reg = simple_strtoul(argv[1], NULL, 0); |
| printf("Extended reg %lu 0x%lx = ", reg, reg); |
| printf("0x%lx\n", read_xr(reg)); |
| return 0; |
| } |
| |
| U_BOOT_CMD(xr, 2, 0, do_xr_test, |
| "Extended reg test", |
| "xr <reg> - get ext reg value and print. This will fault for non existant regsisters\n" |
| ); |
| |
| |
| #endif // #ifndef CONFIG_CMD_INTR |
| |