diff options
Diffstat (limited to 'payloads/libpayload')
33 files changed, 2 insertions, 1809 deletions
diff --git a/payloads/libpayload/Kconfig b/payloads/libpayload/Kconfig index 97b970b0f1..d216f61dc8 100644 --- a/payloads/libpayload/Kconfig +++ b/payloads/libpayload/Kconfig @@ -114,11 +114,6 @@ config ARCH_ARM64 help Support the ARM64 architecture -config ARCH_MIPS - bool "MIPS" - help - Support the MIPS architecture - endchoice config MULTIBOOT @@ -147,12 +142,11 @@ config BASE_ADDRESS hex "Base address" default 0x04000000 if ARCH_ARM default 0x80100000 if ARCH_ARM64 - default 0x00000000 if ARCH_MIPS default 0x00100000 if ARCH_X86 help This is the base address for the payload. - If unsure, set to 0x00100000 on x86, 0x00000000 on MIPS, + If unsure, set to 0x00100000 on x86, 0x04000000 on ARM or 0x80100000 on ARM64. endmenu @@ -452,5 +446,4 @@ config IO_ADDRESS_SPACE source "arch/arm/Kconfig" source "arch/arm64/Kconfig" -source "arch/mips/Kconfig" source "arch/x86/Kconfig" diff --git a/payloads/libpayload/Makefile b/payloads/libpayload/Makefile index b1ab302794..e5f49a6701 100644 --- a/payloads/libpayload/Makefile +++ b/payloads/libpayload/Makefile @@ -95,7 +95,6 @@ include $(HAVE_DOTCONFIG) ARCHDIR-$(CONFIG_LP_ARCH_ARM) := arm ARCHDIR-$(CONFIG_LP_ARCH_ARM64) := arm64 -ARCHDIR-$(CONFIG_LP_ARCH_MIPS) := mips ARCHDIR-$(CONFIG_LP_ARCH_X86) := x86 ARCH-y := $(ARCHDIR-y) @@ -105,7 +104,6 @@ ARCH-y := $(ARCHDIR-y) ARCH-$(CONFIG_LP_ARCH_ARM) := arm ARCH-$(CONFIG_LP_ARCH_ARM64) := arm64 ARCH-$(CONFIG_LP_ARCH_X86) := x86_32 -ARCH-$(CONFIG_LP_ARCH_MIPS) := mips # Three cases where we don't need fully populated $(obj) lists: # 1. when no .config exists diff --git a/payloads/libpayload/Makefile.inc b/payloads/libpayload/Makefile.inc index 4863d3f1da..1b7986cbc6 100644 --- a/payloads/libpayload/Makefile.inc +++ b/payloads/libpayload/Makefile.inc @@ -33,7 +33,6 @@ export KERNELVERSION := 0.2.0 ARCHDIR-$(CONFIG_LP_ARCH_ARM) := arm ARCHDIR-$(CONFIG_LP_ARCH_ARM64) := arm64 -ARCHDIR-$(CONFIG_LP_ARCH_MIPS) := mips ARCHDIR-$(CONFIG_LP_ARCH_X86) := x86 DESTDIR ?= install diff --git a/payloads/libpayload/arch/mips/Kconfig b/payloads/libpayload/arch/mips/Kconfig deleted file mode 100644 index b6e326b967..0000000000 --- a/payloads/libpayload/arch/mips/Kconfig +++ /dev/null @@ -1,24 +0,0 @@ -# -# This file is part of the libpayload project. -# -# Copyright (C) 2014 Imagination Technologies -# -# 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; version 2 of -# the License. -# -# 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. -# - - -if ARCH_MIPS - -config ARCH_SPECIFIC_OPTIONS # dummy - def_bool y - select LITTLE_ENDIAN - -endif diff --git a/payloads/libpayload/arch/mips/Makefile.inc b/payloads/libpayload/arch/mips/Makefile.inc deleted file mode 100644 index 2bd112f6b8..0000000000 --- a/payloads/libpayload/arch/mips/Makefile.inc +++ /dev/null @@ -1,33 +0,0 @@ -# -# This file is part of the libpayload project. -# -# Copyright (C) 2014 Imagination Technologies -# -# 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; version 2 of -# the License. -# -# 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. -# - -############################################################################### -CFLAGS += -march=mips32r2 -mxgot - -head.o-y += head.S - -libc-y += cache.c -libc-y += coreboot.c -libc-y += dummy_media.c -libc-y += exception_asm.S -libc-y += exception.c -libc-y += gdb.c -libc-y += main.c -libc-y += selfboot.c -libc-y += sysinfo.c -libc-y += string.c -libc-y += timer.c -libc-y += util.S diff --git a/payloads/libpayload/arch/mips/cache.c b/payloads/libpayload/arch/mips/cache.c deleted file mode 100644 index 4338415c5f..0000000000 --- a/payloads/libpayload/arch/mips/cache.c +++ /dev/null @@ -1,72 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * 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; version 2 of the License. - * - * 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. - */ - -#include <arch/cache.h> - - -void dcache_clean_all(void) -{ - /* TODO */ -} - -void dcache_invalidate_all(void) -{ - /* TODO */ -} -void dcache_clean_invalidate_all(void) -{ - /* TODO */ -} - -void tlb_invalidate_all(void) -{ - /* TODO */ -} - -unsigned int dcache_line_bytes(void) -{ - /* TO DO */ - return 0; -} - -void dcache_mmu_disable(void) -{ - /* TODO */ -} - -void dcache_mmu_enable(void) -{ - /* TODO */ -} - -void cache_sync_instructions(void) -{ - /* TODO */ -} - -void mmu_init(void) -{ - /* TODO */ -} - -void mmu_disable_range(unsigned long start_mb, unsigned long size_mb) -{ - /* TODO */ -} -void mmu_config_range(unsigned long start_mb, unsigned long size_mb, - enum dcache_policy policy) -{ - /* TODO */ -} diff --git a/payloads/libpayload/arch/mips/coreboot.c b/payloads/libpayload/arch/mips/coreboot.c deleted file mode 100644 index e2b5557cba..0000000000 --- a/payloads/libpayload/arch/mips/coreboot.c +++ /dev/null @@ -1,51 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * 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; version 2 of the License. - * - * 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. - */ - -#include <libpayload-config.h> -#include <libpayload.h> -#include <coreboot_tables.h> - -/* This pointer gets set in head.S and is passed in from coreboot. */ -void *cb_header_ptr; - -static void cb_parse_dma(void *ptr) -{ - struct lb_range *dma = (struct lb_range *)ptr; - init_dma_memory(bus_to_virt(dma->range_start), dma->range_size); -} - -/* Architecture specific */ -int cb_parse_arch_specific(struct cb_record *rec, struct sysinfo_t *info) -{ - switch (rec->tag) { - case CB_TAG_DMA: - cb_parse_dma(rec); - break; - default: - return 0; - } - return 1; - -} - -int get_coreboot_info(struct sysinfo_t *info) -{ - return cb_parse_header(cb_header_ptr, 1, info); -} - -void *get_cb_header_ptr(void) -{ - return cb_header_ptr; -} diff --git a/payloads/libpayload/arch/mips/dummy_media.c b/payloads/libpayload/arch/mips/dummy_media.c deleted file mode 100644 index 112d7feec8..0000000000 --- a/payloads/libpayload/arch/mips/dummy_media.c +++ /dev/null @@ -1,42 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Google, Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ -#define LIBPAYLOAD - -#include <cbfs.h> - -/* The generic cbfs code relies on the libpayload_init_default_cbfs_media - * symbol. Therefore, provide an implementation that just throws an error. */ - -int libpayload_init_default_cbfs_media(struct cbfs_media *media); - -__attribute__((weak)) int libpayload_init_default_cbfs_media( - struct cbfs_media *media) -{ - return -1; -} diff --git a/payloads/libpayload/arch/mips/exception.c b/payloads/libpayload/arch/mips/exception.c deleted file mode 100644 index e488f2e3bd..0000000000 --- a/payloads/libpayload/arch/mips/exception.c +++ /dev/null @@ -1,103 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * 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; version 2 of the License. - * - * 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. - */ - -#include <arch/exception.h> -#include <exception.h> -#include <libpayload.h> -#include <stdint.h> - -u32 exception_stack[0x400] __attribute__((aligned(8))); -struct exception_state_t exception_state; - -static const char *names[EXC_COUNT] = { - [EXC_CACHE_ERROR] = "Cache error exception", - [EXC_TLB_REFILL_AND_ALL] = "TLB refill or general exception", - [EXC_INTERRUPT] = "Interrupt", - [EXC_EJTAG_DEBUG] = "EJTAG debug exception" -}; - -static void dump_exception_state(void) -{ - printf("%s exception!\n", names[exception_state_ptr->vector]); - printf("\nRegisters:\n"); - printf("ZERO:\t0x%08x\n", exception_state_ptr->regs.zero); - printf("AT:\t0x%08x\n", exception_state_ptr->regs.at); - printf("V0:\t0x%08x\n", exception_state_ptr->regs.v0); - printf("V1:\t0x%08x\n", exception_state_ptr->regs.v1); - printf("A0:\t0x%08x\n", exception_state_ptr->regs.a0); - printf("A1:\t0x%08x\n", exception_state_ptr->regs.a1); - printf("A2:\t0x%08x\n", exception_state_ptr->regs.a2); - printf("A3:\t0x%08x\n", exception_state_ptr->regs.a3); - printf("T0:\t0x%08x\n", exception_state_ptr->regs.t0); - printf("T1:\t0x%08x\n", exception_state_ptr->regs.t1); - printf("T2:\t0x%08x\n", exception_state_ptr->regs.t2); - printf("T3:\t0x%08x\n", exception_state_ptr->regs.t3); - printf("T4:\t0x%08x\n", exception_state_ptr->regs.t4); - printf("T5:\t0x%08x\n", exception_state_ptr->regs.t5); - printf("T6:\t0x%08x\n", exception_state_ptr->regs.t6); - printf("T7:\t0x%08x\n", exception_state_ptr->regs.t7); - printf("S0:\t0x%08x\n", exception_state_ptr->regs.s0); - printf("S1:\t0x%08x\n", exception_state_ptr->regs.s1); - printf("S2:\t0x%08x\n", exception_state_ptr->regs.s2); - printf("S3:\t0x%08x\n", exception_state_ptr->regs.s3); - printf("S4:\t0x%08x\n", exception_state_ptr->regs.s4); - printf("S5:\t0x%08x\n", exception_state_ptr->regs.s5); - printf("S6:\t0x%08x\n", exception_state_ptr->regs.s6); - printf("S7:\t0x%08x\n", exception_state_ptr->regs.s7); - printf("T8:\t0x%08x\n", exception_state_ptr->regs.t8); - printf("T9:\t0x%08x\n", exception_state_ptr->regs.t9); - printf("K0:\t0x%08x\n", exception_state_ptr->regs.k0); - printf("K1:\t0x%08x\n", exception_state_ptr->regs.k1); - printf("GP:\t0x%08x\n", exception_state_ptr->regs.gp); - printf("SP:\t0x%08x\n", exception_state_ptr->regs.sp); - printf("FP:\t0x%08x\n", exception_state_ptr->regs.fp); - printf("RA:\t0x%08x\n", exception_state_ptr->regs.ra); -} - -static void dump_stack(uintptr_t addr, size_t bytes) -{ - int i, j; - const int words_per_line = 8; - int words_to_print; - uint32_t *ptr = (uint32_t *) - (addr & ~(words_per_line * sizeof(*ptr) - 1)); - - printf("Dumping stack:\n"); - words_to_print = bytes/sizeof(*ptr); - for (i = words_to_print; i >= 0; i -= words_per_line) { - printf("%p: ", ptr + i); - for (j = i; j < i + words_per_line; j++) - printf("%08x ", *(ptr + j)); - printf("\n"); - } -} - - -void exception_dispatch(void) -{ - u32 vec = exception_state_ptr->vector; - die_if(vec >= EXC_COUNT || !names[vec], "Bad exception vector %u", vec); - - dump_exception_state(); - dump_stack(exception_state_ptr->regs.sp, 512); - halt(); -} - -void exception_init(void) -{ - exception_stack_end = exception_stack + ARRAY_SIZE(exception_stack); - exception_state_ptr = &exception_state; - exception_init_asm(); -} diff --git a/payloads/libpayload/arch/mips/exception_asm.S b/payloads/libpayload/arch/mips/exception_asm.S deleted file mode 100644 index 118c12d965..0000000000 --- a/payloads/libpayload/arch/mips/exception_asm.S +++ /dev/null @@ -1,200 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * 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; version 2 of the License. - * - * 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. - */ - -#define STATUS_REGISTER $12,0 -#define BOOT_EXC_VECTOR_MASK (1 << 22) -#define EBASE_REGISTER $15,1 -#define EXCEPTION_BASE_MASK (0xFFFFF000) - - /* Don't reorder instructions */ - .set noreorder - .set noat - - .align 4 - .global exception_stack_end -exception_stack_end: - .word 0 - - .global exception_state_ptr -exception_state_ptr: - .word 0 - -/* Temporary variables. */ -ret_addr: - .word 0 -exception_sp: - .word 0 -vector: - .word 0 - -/* Cache error */ -.org 0x100 - li $v0, 0x0 - la $at, vector - sw $v0, 0x00($at) - b exception_common - nop - -/* TLB refill and all others */ -.org 0x180 - li $v0, 0x1 - la $at, vector - sw $v0, 0x00($at) - b exception_common - nop - -/* Interrupt */ -.org 0x200 - li $v0, 0x2 - la $at, vector - sw $v0, 0x00($at) - b exception_common - nop - -/* EJTAG debug exception */ -.org 0x480 - li $v0, 0x3 - la $at, vector - sw $v0, 0x00($at) - b exception_common - nop - -exception_common: - /* Obtain return address of exception */ - la $v0, ret_addr - sw $ra, 0x00($v0) - - /* Initialize $gp */ - bal 1f - nop - .word _gp -1: - lw $gp, 0($ra) - - la $at, exception_sp - sw $sp, 0x00($at) - lw $sp, exception_state_ptr - - /* Save all registers */ - sw $zero, 0x00($sp) - sw $at, 0x04($sp) - sw $v0, 0x08($sp) - sw $v1, 0x0C($sp) - sw $a0, 0x10($sp) - sw $a1, 0x14($sp) - sw $a2, 0x18($sp) - sw $a3, 0x1C($sp) - sw $t0, 0x20($sp) - sw $t1, 0x34($sp) - sw $t2, 0x28($sp) - sw $t3, 0x2C($sp) - sw $t4, 0x30($sp) - sw $t5, 0x34($sp) - sw $t6, 0x38($sp) - sw $t7, 0x3C($sp) - sw $s0, 0x40($sp) - sw $s1, 0x44($sp) - sw $s2, 0x48($sp) - sw $s3, 0x4C($sp) - sw $s4, 0x50($sp) - sw $s5, 0x54($sp) - sw $s6, 0x58($sp) - sw $s7, 0x5C($sp) - sw $t8, 0x60($sp) - sw $t9, 0x64($sp) - sw $k0, 0x68($sp) - sw $k1, 0x6C($sp) - sw $gp, 0x70($sp) - lw $v0, exception_sp - sw $v0, 0x74($sp) - sw $fp, 0x78($sp) - lw $v0, ret_addr - sw $v0, 0x7C($sp) - lw $v0, vector - sw $v0, 0x80($sp) - - /* Point SP to the stack for C code */ - lw $sp, exception_stack_end - /* Give control to exception dispatch */ - la $a2, exception_dispatch - jalr $a2 - nop - lw $sp, exception_state_ptr - /* Restore registers */ - lw $zero, 0x00($sp) - lw $at, 0x04($sp) - lw $v0, 0x08($sp) - lw $v1, 0x0C($sp) - lw $a0, 0x10($sp) - lw $a1, 0x14($sp) - lw $a2, 0x18($sp) - lw $a3, 0x1C($sp) - lw $t0, 0x20($sp) - lw $t1, 0x24($sp) - lw $t2, 0x28($sp) - lw $t3, 0x2C($sp) - lw $t4, 0x30($sp) - lw $t5, 0x34($sp) - lw $t6, 0x38($sp) - lw $t7, 0x3C($sp) - lw $s0, 0x40($sp) - lw $s1, 0x44($sp) - lw $s2, 0x48($sp) - lw $s3, 0x4C($sp) - lw $s4, 0x50($sp) - lw $s5, 0x54($sp) - lw $s6, 0x58($sp) - lw $s7, 0x5C($sp) - lw $t8, 0x60($sp) - lw $t9, 0x64($sp) - lw $k0, 0x68($sp) - sw $k1, 0x6C($sp) - sw $gp, 0x70($sp) - sw $fp, 0x78($sp) - sw $ra, 0x7C($sp) - /* Return */ - eret - - .global exception_init_asm -exception_init_asm: - .set push - /* Make sure boot exception vector is 1 before writing EBASE */ - mfc0 $t0, STATUS_REGISTER - li $t1, BOOT_EXC_VECTOR_MASK - or $t0, $t0, $t1 - mtc0 $t0, STATUS_REGISTER - - /*Prepare base address */ - la $t1, exception_stack_end - li $t2, EXCEPTION_BASE_MASK - and $t1, $t1, $t2 - - /* Prepare EBASE register value */ - mfc0 $t0, EBASE_REGISTER - li $t2, ~(EXCEPTION_BASE_MASK) - and $t0, $t0, $t2 - /* Filling base address */ - or $t0, $t0, $t1 - mtc0 $t0, EBASE_REGISTER - - /* Clear boot exception vector bit for EBASE value to take effect */ - mfc0 $t0, STATUS_REGISTER - li $t1, ~BOOT_EXC_VECTOR_MASK - and $t0, $t0, $t1 - mtc0 $t0, STATUS_REGISTER - - .set pop - /* Return */ - jr $ra diff --git a/payloads/libpayload/arch/mips/gdb.c b/payloads/libpayload/arch/mips/gdb.c deleted file mode 100644 index 7fd741aeb1..0000000000 --- a/payloads/libpayload/arch/mips/gdb.c +++ /dev/null @@ -1,27 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * 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; version 2 of the License. - * - * 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. - */ - - -#include <gdb.h> -#include <libpayload.h> - - -void gdb_arch_init(void) -{ -} - -void gdb_arch_enter(void) -{ -} diff --git a/payloads/libpayload/arch/mips/head.S b/payloads/libpayload/arch/mips/head.S deleted file mode 100644 index 203e0ae1bf..0000000000 --- a/payloads/libpayload/arch/mips/head.S +++ /dev/null @@ -1,96 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * 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; version 2 of the License. - * - * 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. - */ - -#include <arch/cpu.h> - - /* Disable interrupts and mark the kernel mode */ - .macro setup_c0_status clr - .set push - mfc0 $t0, $CP0_STATUS - or $t0, ST0_CU0 | 0x1f | \clr - xor $t0, 0x1f | \clr - mtc0 $t0, $CP0_STATUS - .set noreorder - sll $zero, 3 - .set pop - .endm - - /* Don't reorder instructions */ - .set noreorder - - .align 4 - - .global cb_header_ptr -cb_header_ptr: - .word 0 - - .global old_sp -old_sp: - .word 0 - - - .global _entry, _leave - .text - -/* Our entry point */ -_entry: - - /* - * This function saves off the previous stack and switches us to our - * own execution environment. - */ - - /* Clear watch and cause registers */ - mtc0 $zero, $CP0_WATCHLO - mtc0 $zero, $CP0_WATCHHI - mtc0 $zero, $CP0_CAUSE - - /* Disable interrupts */ - setup_c0_status 0 - - /* Don't use at in synthetic instr. */ - .set noat - - /* Init timer */ - mtc0 $zero, $CP0_COUNT - mtc0 $zero, $CP0_COMPARE - - /* Initialize $gp */ - bal 1f - nop - .word _gp -1: - lw $gp, 0($ra) - - /* Save off the location of the coreboot tables */ - la $at, cb_header_ptr - sw $a0, 0x00($at) - - /* Save old stack pointer */ - la $at, old_sp - sw $sp, 0x00($at) - - /* Setup new stack */ - la $sp, _stack - - /* Let's rock */ - la $a2, start_main - jalr $a2 - nop -_leave: - /* Restore old stack. */ - lw $sp, old_sp - /* Return to the original context. */ - eret diff --git a/payloads/libpayload/arch/mips/libpayload.ldscript b/payloads/libpayload/arch/mips/libpayload.ldscript deleted file mode 100644 index 351c2254fb..0000000000 --- a/payloads/libpayload/arch/mips/libpayload.ldscript +++ /dev/null @@ -1,86 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * Based on src/arch/arm/ramstage.ld: - * Written by Johan Rydberg, based on work by Daniel Kahlin. - * Rewritten by Eric Biederman - * - * 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; version 2 of - * the License. - * - * 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. - */ - -OUTPUT_ARCH(mips) - -ENTRY(_entry) - -SECTIONS -{ - . = CONFIG_LP_BASE_ADDRESS; - - . = ALIGN(16); - _start = .; - - .text : { - *(.text._entry) - *(.text) - *(.text.*) - } - - .rodata : { - *(.rodata) - *(.rodata.*) - } - - .data : { - *(.data) - *(.data.*) - } - - _edata = .; - - .sdata : { - *(.srodata) - *(.sdata) - } - - _bss = .; - .bss : { - *(.sbss) - *(.sbss.*) - *(.bss) - *(.bss.*) - *(COMMON) - - /* Stack and heap */ - - . = ALIGN(16); - _heap = .; - . += CONFIG_LP_HEAP_SIZE; - . = ALIGN(16); - _eheap = .; - - _estack = .; - . += CONFIG_LP_STACK_SIZE; - . = ALIGN(16); - _stack = .; - } - _ebss = .; - - _end = .; - - /DISCARD/ : { - *(.comment) - *(.note*) - *(.reginfo) - - } -} diff --git a/payloads/libpayload/arch/mips/main.c b/payloads/libpayload/arch/mips/main.c deleted file mode 100644 index 7a71f90fa6..0000000000 --- a/payloads/libpayload/arch/mips/main.c +++ /dev/null @@ -1,58 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * 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; version 2 of the License. - * - * 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. - */ - -#include <exception.h> -#include <libpayload.h> - -/* The argc value to pass to main() */ -int main_argc; -/* The argv value to pass to main() */ -char *main_argv[MAX_ARGC_COUNT]; - -/* - * This is our C entry function - set up the system - * and jump into the payload entry point. - */ -void start_main(void); -void start_main(void) -{ - extern int main(int argc, char **argv); - - /* Gather system information. */ - lib_get_sysinfo(); - - /* Optionally set up the consoles. */ -#if !CONFIG(LP_SKIP_CONSOLE_INIT) - console_init(); -#endif - - exception_init(); - /* - * Any other system init that has to happen before the - * user gets control goes here - */ - - /* - * Go to the entry point. - * In the future we may care about the return value. - */ - - (void) main(main_argc, (main_argc != 0) ? main_argv : NULL); - - /* - * Returning here will go to the _leave function to return - * us to the original context. - */ -} diff --git a/payloads/libpayload/arch/mips/selfboot.c b/payloads/libpayload/arch/mips/selfboot.c deleted file mode 100644 index c69583134c..0000000000 --- a/payloads/libpayload/arch/mips/selfboot.c +++ /dev/null @@ -1,36 +0,0 @@ -/* - * Copyright 2014 Google Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <libpayload.h> - -extern void *cb_header_ptr; - -void selfboot(void *entry) -{ - void (*entry_func)(void *) = entry; - entry_func(cb_header_ptr); -} diff --git a/payloads/libpayload/arch/mips/string.c b/payloads/libpayload/arch/mips/string.c deleted file mode 100644 index 79cc8d260a..0000000000 --- a/payloads/libpayload/arch/mips/string.c +++ /dev/null @@ -1,77 +0,0 @@ - /* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * 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; version 2 of the License. - * - * 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. - */ - -#include <stdint.h> -#include "string.h" - -/* - * Alternative string functions to the default ones are added - * because there is no guarantee that the provided source and - * destination addresses are properly aligned; - * The default string functions work with multiple of 4 bytes - * (sizeof(unsinged long)); MIPS will use LW/SW instructions - * for these operations and if the source and destination - * addresses are not aligned it will trigger an exception. - */ - -void *memcpy(void *dest, const void *src, size_t n) -{ - u8 *ptr_d = dest; - const u8 *ptr_s = src; - size_t i; - - for (i = 0; i < n; i++) - *ptr_d++ = *ptr_s++; - - return dest; -} - -void *memmove(void *dest, const void *src, size_t n) -{ - if ((src < dest) && (dest - src < n)) { - u8 *ptr_d = dest; - const u8 *ptr_s = src; - - /* copy backwards */ - while (n--) - ptr_d[n] = ptr_s[n]; - - return dest; - } - - /* copy forwards */ - return memcpy(dest, src, n); -} - -void *memset(void *s, int c, size_t n) -{ - u8 *ptr = s; - size_t i; - - for (i = 0; i < n; i++) - *ptr++ = c; - - return s; -} - -int memcmp(const void *s1, const void *s2, size_t n) -{ - size_t i; - - for (i = 0; i < n; i++) - if (((u8 *)s1)[i] != ((u8 *)s2)[i]) - return ((u8 *)s1)[i] - ((u8 *)s2)[i]; - return 0; -} diff --git a/payloads/libpayload/arch/mips/sysinfo.c b/payloads/libpayload/arch/mips/sysinfo.c deleted file mode 100644 index 49c6c84feb..0000000000 --- a/payloads/libpayload/arch/mips/sysinfo.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * 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; version 2 of the License. - * - * 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. - */ - -#include <libpayload-config.h> -#include <libpayload.h> -#include <coreboot_tables.h> -#include <multiboot_tables.h> - -/* - * This is a global structure that is used through the library - we set it - * up initially with some dummy values - hopefully they will be overridden. - */ -struct sysinfo_t lib_sysinfo = { - .cpu_khz = 200, -}; - -int lib_get_sysinfo(void) -{ - int ret; - - /* Get the CPU speed (for delays). */ - lib_sysinfo.cpu_khz = get_cpu_speed(); - - /* Get information from the coreboot tables, - * if they exist */ - ret = get_coreboot_info(&lib_sysinfo); - - /* If we can't get a good memory range, use the default. */ - if (!lib_sysinfo.n_memranges) { - lib_sysinfo.n_memranges = 1; - lib_sysinfo.memrange[0].base = 0; - lib_sysinfo.memrange[0].size = 1024 * 1024; - lib_sysinfo.memrange[0].type = CB_MEM_RAM; - } - - return ret; -} diff --git a/payloads/libpayload/arch/mips/timer.c b/payloads/libpayload/arch/mips/timer.c deleted file mode 100644 index a066f676d1..0000000000 --- a/payloads/libpayload/arch/mips/timer.c +++ /dev/null @@ -1,52 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * 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; version 2 of the License. - * - * 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. - */ - -#include <libpayload.h> -#include <arch/cpu.h> -#include <arch/io.h> - -#define PISTACHIO_CLOCK_SWITCH 0xB8144200 -#define MIPS_EXTERN_PLL_BYPASS_MASK 0x00000002 - -/** - * @ingroup arch - * Global variable containing the speed of the processor in KHz. - */ -u32 cpu_khz; - -/** - * Calculate the speed of the processor for use in delays. - * - * @return The CPU speed in kHz. - */ -unsigned int get_cpu_speed(void) -{ - if (IMG_PLATFORM_ID() != IMG_PLATFORM_ID_SILICON) - cpu_khz = 50000; /* FPGA board */ - else { - /* If MIPS PLL external bypass bit is set, it means - * that the MIPS PLL is already set up to work at a - * frequency of 550 MHz; otherwise, the crystal is - * used with a frequency of 52 MHz - */ - if (read32(PISTACHIO_CLOCK_SWITCH) & - MIPS_EXTERN_PLL_BYPASS_MASK) - cpu_khz = 550000; - else - cpu_khz = 52000; - } - - return cpu_khz; -} diff --git a/payloads/libpayload/arch/mips/util.S b/payloads/libpayload/arch/mips/util.S deleted file mode 100644 index 986a34c5d4..0000000000 --- a/payloads/libpayload/arch/mips/util.S +++ /dev/null @@ -1,22 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * 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; version 2 of the License. - * - * 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. - */ - - .global halt - .text - .align 4 - .type halt, function -halt: - j halt - nop diff --git a/payloads/libpayload/bin/lpgcc b/payloads/libpayload/bin/lpgcc index b3ef342ff2..c233f82950 100755 --- a/payloads/libpayload/bin/lpgcc +++ b/payloads/libpayload/bin/lpgcc @@ -80,12 +80,6 @@ if [ "$CONFIG_LP_ARCH_ARM64" = "y" ]; then _ARCHEXTRA="" _ARCH=arm64 fi -if [ "$CONFIG_LP_ARCH_MIPS" = "y" ]; then - _ARCHINCDIR=$_INCDIR/mips - _ARCHLIBDIR=$_LIBDIR/mips - _ARCHEXTRA="" - _ARCH=mips -fi if [ "$CONFIG_LP_ARCH_X86" = "y" ]; then _ARCHINCDIR=$_INCDIR/x86 _ARCHLIBDIR=$_LIBDIR/x86 @@ -170,9 +164,7 @@ if [ $DOLINK -eq 0 ]; then $DEFAULT_CC $CMDLINE $_CFLAGS else - if [ -z "${CONFIG_LP_ARCH_MIPS}" ]; then - _LIBGCC=`$DEFAULT_CC $_ARCHEXTRA -print-libgcc-file-name` - fi + _LIBGCC=`$DEFAULT_CC $_ARCHEXTRA -print-libgcc-file-name` if [ -f $_ARCHLIBDIR/head.o ]; then HEAD_O=$_ARCHLIBDIR/head.o elif [ -f $BASE/../build/head.o ]; then diff --git a/payloads/libpayload/configs/defconfig-mips b/payloads/libpayload/configs/defconfig-mips deleted file mode 100644 index 4a0a914ac3..0000000000 --- a/payloads/libpayload/configs/defconfig-mips +++ /dev/null @@ -1,6 +0,0 @@ -CONFIG_LP_ARCH_MIPS=y -CONFIG_LP_COREBOOT_VIDEO_CONSOLE=y -CONFIG_LP_PC_KEYBOARD=y -CONFIG_LP_TIMER_IMG_PISTACHIO=y -# CONFIG_LP_USB_EHCI is not set -# CONFIG_LP_USB_XHCI is not set diff --git a/payloads/libpayload/drivers/timer/img_pistachio.c b/payloads/libpayload/drivers/timer/img_pistachio.c deleted file mode 100644 index d11c3ff283..0000000000 --- a/payloads/libpayload/drivers/timer/img_pistachio.c +++ /dev/null @@ -1,38 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * 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; version 2 of the License. - * - * 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. - */ - -#include <libpayload.h> -#include <arch/cpu.h> - -uint64_t timer_hz(void) -{ - return (uint64_t)lib_sysinfo.cpu_khz * 1000; -} - -uint64_t timer_raw_value(void) -{ - static uint64_t total_ticks = 0; - uint8_t overflow = 0; - uint32_t current_ticks = read_c0_count() * 2; - - /* It assumes only one overflow happened since the last call */ - if (current_ticks <= (uint32_t)total_ticks) - overflow = 1; - /* The least significant part(32 bits) of total_ticks will always - * become equal to current ticks */ - total_ticks = (((total_ticks >> 32) + overflow) << 32) + - current_ticks; - return total_ticks; -} diff --git a/payloads/libpayload/include/mips/arch/byteorder.h b/payloads/libpayload/include/mips/arch/byteorder.h deleted file mode 100644 index 40412d232c..0000000000 --- a/payloads/libpayload/include/mips/arch/byteorder.h +++ /dev/null @@ -1,39 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * 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; version 2 of the License. - * - * 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. - */ - -#ifndef __MIPS_ARCH_BYTEORDER_H__ -#define __MIPS_ARCH_BYTEORDER_H__ - -#include <stdint.h> -#include <swab.h> - -#ifndef __ORDER_LITTLE_ENDIAN__ -#error "What endian are you!?" -#endif - -#define cpu_to_le64(x) ((uint64_t)(x)) -#define le64_to_cpu(x) ((uint64_t)(x)) -#define cpu_to_le32(x) ((uint32_t)(x)) -#define le32_to_cpu(x) ((uint32_t)(x)) -#define cpu_to_le16(x) ((uint16_t)(x)) -#define le16_to_cpu(x) ((uint16_t)(x)) -#define cpu_to_be64(x) swab64(x) -#define be64_to_cpu(x) swab64(x) -#define cpu_to_be32(x) swab32((x)) -#define be32_to_cpu(x) swab32((x)) -#define cpu_to_be16(x) swab16((x)) -#define be16_to_cpu(x) swab16((x)) - -#endif /* __MIPS_ARCH_BYTEORDER_H__ */ diff --git a/payloads/libpayload/include/mips/arch/cache.h b/payloads/libpayload/include/mips/arch/cache.h deleted file mode 100644 index e65a2a00ae..0000000000 --- a/payloads/libpayload/include/mips/arch/cache.h +++ /dev/null @@ -1,94 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * 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; version 2 of the License. - * - * 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. - */ - -#ifndef __MIPS_ARCH_CACHE_H__ -#define __MIPS_ARCH_CACHE_H__ - - -#include <stddef.h> -#include <stdint.h> - - -/* - * Sync primitives - */ - -/* data memory barrier */ -static inline void dmb(void) -{ - /* TODO */ -} - -/* data sync barrier */ -static inline void dsb(void) -{ - /* TODO */ -} - -/* instruction sync barrier */ -static inline void isb(void) -{ - /* TODO */ -} - - -/* - * Cache maintenance API - */ - -/* dcache clean and invalidate all */ -void dcache_clean_invalidate_all(void); - -/* dcache clean all */ -void dcache_clean_all(void); - -/* dcache invalidate all (on current level given by CCSELR) */ -void dcache_invalidate_all(void); - -/* returns number of bytes per cache line */ -unsigned int dcache_line_bytes(void); - -/* dcache and MMU disable */ -void dcache_mmu_disable(void); - -/* dcache and MMU enable */ -void dcache_mmu_enable(void); - -/* perform all icache/dcache maintenance needed after loading new code */ -void cache_sync_instructions(void); - -/* tlb invalidate all */ -void tlb_invalidate_all(void); - -/* - * Generalized setup/init functions - */ - -/* mmu initialization (set page table address, set permissions, etc) */ -void mmu_init(void); - -enum dcache_policy { - DCACHE_OFF, - DCACHE_WRITEBACK, - DCACHE_WRITETHROUGH, -}; - -/* disable the mmu for a range. Primarily useful to lock out address 0. */ -void mmu_disable_range(unsigned long start_mb, unsigned long size_mb); -/* mmu range configuration (set dcache policy) */ -void mmu_config_range(unsigned long start_mb, unsigned long size_mb, - enum dcache_policy policy); - -#endif /* __MIPS_ARCH_CACHE_H__ */ diff --git a/payloads/libpayload/include/mips/arch/cpu.h b/payloads/libpayload/include/mips/arch/cpu.h deleted file mode 100644 index 93e42ea455..0000000000 --- a/payloads/libpayload/include/mips/arch/cpu.h +++ /dev/null @@ -1,92 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * 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; version 2 of - * the License. - * - * 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. - * - */ - -#ifndef __MIPS_ARCH_CPU_H__ -#define __MIPS_ARCH_CPU_H__ - -/* - * Reading at this address allows to identify the platform the code is running - * on - */ - -/* - * This register holds the FPGA image version - * If we're not working on the FPGA this will be 0 - */ -#define PRIMARY_FPGA_VERSION 0xB8149060 -#define IMG_PLATFORM_ID() read32(PRIMARY_FPGA_VERSION) -#define IMG_PLATFORM_ID_FPGA 0xD1400003 /* Last FPGA image */ -#define IMG_PLATFORM_ID_SILICON 0 - -#define CP0_COUNT 9 -#define CP0_COMPARE 11 -#define CP0_STATUS 12 -#define CP0_CAUSE 13 -#define CP0_WATCHLO 18 -#define CP0_WATCHHI 19 - -/* coprocessor 0 enable */ -#define ST0_CU0 (1 << 28) -#define C0_CAUSE_DC (1 << 27) - -/*************************************************************************** - * The following section was copied from arch/mips/include/asm/mipsregs.h in - * the 3.14 kernel tree. - */ - -/* - * Macros to access the system control coprocessor - */ - -#define __read_32bit_c0_register(source, sel) \ -({ int __res; \ - if (sel == 0) \ - __asm__ __volatile__( \ - "mfc0\t%0, " #source "\n\t" \ - : "=r" (__res)); \ - else \ - __asm__ __volatile__( \ - ".set\tmips32\n\t" \ - "mfc0\t%0, " #source ", " #sel "\n\t" \ - ".set\tmips0\n\t" \ - : "=r" (__res)); \ - __res; \ -}) - -#define __write_32bit_c0_register(register, sel, value) \ -do { \ - if (sel == 0) \ - __asm__ __volatile__( \ - "mtc0\t%z0, " #register "\n\t" \ - : : "Jr" ((unsigned int)(value))); \ - else \ - __asm__ __volatile__( \ - ".set\tmips32\n\t" \ - "mtc0\t%z0, " #register ", " #sel "\n\t" \ - ".set\tmips0" \ - : : "Jr" ((unsigned int)(value))); \ -} while (0) - -/* Shortcuts to access various internal registers, keep adding as needed. */ -#define read_c0_count() __read_32bit_c0_register($9, 0) -#define write_c0_count(val) __write_32bit_c0_register($9, 0, (val)) - -#define read_c0_cause() __read_32bit_c0_register($13, 0) -#define write_c0_cause(val) __write_32bit_c0_register($13, 0, (val)) -/***************************************************************************/ - -#endif /* __MIPS_ARCH_CPU_H__ */ diff --git a/payloads/libpayload/include/mips/arch/exception.h b/payloads/libpayload/include/mips/arch/exception.h deleted file mode 100644 index 27f0b6417b..0000000000 --- a/payloads/libpayload/include/mips/arch/exception.h +++ /dev/null @@ -1,86 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * 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; version 2 of the License. - * - * 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. - */ - -#ifndef __MIPS_ARCH_EXCEPTION_H__ -#define __MIPS_ARCH_EXCEPTION_H__ - -#include <stdint.h> - -void exception_init_asm(void); -void exception_dispatch(void); - -struct exception_state_t { - struct { - /* Always 0: just to keep the series complete */ - u32 zero; - /* Reserved for the assembler */ - /* TODO: is this actually needed here? */ - u32 at; - /* v0-v1: expression evaluation */ - u32 v0; - u32 v1; - /* a0-a3: Arguments */ - u32 a0; - u32 a1; - u32 a2; - u32 a3; - /* t0-t3: Temporary registers for expression evaluation */ - u32 t0; - u32 t1; - u32 t2; - u32 t3; - u32 t4; - u32 t5; - u32 t6; - u32 t7; - /* s0-s7: Saved registers */ - u32 s0; - u32 s1; - u32 s2; - u32 s3; - u32 s4; - u32 s5; - u32 s6; - u32 s7; - /* t8-t9: Temporary registers for expression evaluation */ - u32 t8; - u32 t9; - /* k0-k1: reserved for SO kernel */ - u32 k0; - u32 k1; - /* Global pointer */ - u32 gp; - /* Stack pointer */ - u32 sp; - /* Frame pointer */ - u32 fp; - /* Return address */ - u32 ra; - } regs; - u32 vector; -} __packed; - -extern struct exception_state_t *exception_state_ptr; -extern u32 *exception_stack_end; - -enum { - EXC_CACHE_ERROR = 0, - EXC_TLB_REFILL_AND_ALL = 1, - EXC_INTERRUPT = 2, - EXC_EJTAG_DEBUG = 3, - EXC_COUNT -}; - -#endif /* __MIPS_ARCH_EXCEPTION_H__ */ diff --git a/payloads/libpayload/include/mips/arch/io.h b/payloads/libpayload/include/mips/arch/io.h deleted file mode 100644 index f86f45fbd5..0000000000 --- a/payloads/libpayload/include/mips/arch/io.h +++ /dev/null @@ -1,63 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * Based on arch/armv7/include/arch/io.h: - * Copyright 2013 Google Inc. - * Copyright (C) 1996-2000 Russell King - * - * 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; version 2 of the License. - * - * 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. - */ - -#ifndef __MIPS_ARCH_IO_H__ -#define __MIPS_ARCH_IO_H__ - -#include <arch/types.h> -#include <arch/cache.h> -#include <arch/byteorder.h> - -#define read8(a) (*(volatile uint8_t *) (a)) -#define read16(a) (*(volatile uint16_t *) (a)) -#define read32(a) (*(volatile uint32_t *) (a)) - -#define write8(v, a) (*(volatile uint8_t *) (a) = (v)) -#define write16(v, a) (*(volatile uint16_t *) (a) = (v)) -#define write32(v, a) (*(volatile uint32_t *) (a) = (v)) - - -/* - * Clear and set bits in one shot. These macros can be used to clear and - * set multiple bits in a register using a single call. These macros can - * also be used to set a multiple-bit bit pattern using a mask, by - * specifying the mask in the 'clear' parameter and the new bit pattern - * in the 'set' parameter. - */ - -#define out_arch(type, endian, a, v) write##type(cpu_to_##endian(v), a) -#define in_arch(type, endian, a) endian##_to_cpu(read##type(a)) - -#define readb(a) read8(a) -#define readw(a) read16(a) -#define readl(a) read32(a) - -#define inb(a) read8(a) -#define inw(a) read16(a) -#define inl(a) read32(a) - -#define writeb(v, a) write8(v, a) -#define writew(v, a) write16(v, a) -#define writel(v, a) write32(v, a) - -#define outb(v, a) write8(v, a) -#define outw(v, a) write16(v, a) -#define outl(v, a) write32(v, a) - -#endif /* __MIPS_ARCH_IO_H__ */ diff --git a/payloads/libpayload/include/mips/arch/stdint.h b/payloads/libpayload/include/mips/arch/stdint.h deleted file mode 100644 index 18fa54f531..0000000000 --- a/payloads/libpayload/include/mips/arch/stdint.h +++ /dev/null @@ -1,91 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Based on src/arch/armv7/include/stdint.h - * - * 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; version 2 of the License. - * - * 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. - */ - -#ifndef __MIPS_STDINT_H__ -#define __MIPS_STDINT_H__ - -#if defined(__GNUC__) -#define __HAVE_LONG_LONG__ 1 -#else -#define __HAVE_LONG_LONG__ 0 -#endif - -/* Exact integral types */ -typedef unsigned char uint8_t; -typedef signed char int8_t; - -typedef unsigned short uint16_t; -typedef signed short int16_t; - -typedef unsigned int uint32_t; -typedef signed int int32_t; - -#if __HAVE_LONG_LONG__ -typedef unsigned long long uint64_t; -typedef signed long long int64_t; -#endif - -/* Small types */ -typedef unsigned char uint_least8_t; -typedef signed char int_least8_t; - -typedef unsigned short uint_least16_t; -typedef signed short int_least16_t; - -typedef unsigned int uint_least32_t; -typedef signed int int_least32_t; - -#if __HAVE_LONG_LONG__ -typedef unsigned long long uint_least64_t; -typedef signed long long int_least64_t; -#endif - -/* Fast Types */ -typedef unsigned char uint_fast8_t; -typedef signed char int_fast8_t; - -typedef unsigned int uint_fast16_t; -typedef signed int int_fast16_t; - -typedef unsigned int uint_fast32_t; -typedef signed int int_fast32_t; - -#if __HAVE_LONG_LONG__ -typedef unsigned long long uint_fast64_t; -typedef signed long long int_fast64_t; -#endif - -/* Largest integral types */ -#if __HAVE_LONG_LONG__ -typedef long long int intmax_t; -typedef unsigned long long uintmax_t; -#else -typedef long int intmax_t; -typedef unsigned long int uintmax_t; -#endif - -typedef uint8_t u8; -typedef uint16_t u16; -typedef uint32_t u32; -#if __HAVE_LONG_LONG__ -typedef uint64_t u64; -#endif -typedef int8_t s8; -typedef int16_t s16; -typedef int32_t s32; - -#undef __HAVE_LONG_LONG__ - -#endif /* __MIPS_STDINT_H__ */ diff --git a/payloads/libpayload/include/mips/arch/types.h b/payloads/libpayload/include/mips/arch/types.h deleted file mode 100644 index afa3a37e87..0000000000 --- a/payloads/libpayload/include/mips/arch/types.h +++ /dev/null @@ -1,72 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * Based on src/arch/armv7/include/arch/types.h - * - * 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; version 2 of the License. - * - * 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. - */ - -#ifndef __MIPS_ARCH_TYPES_H -#define __MIPS_ARCH_TYPES_H - -#include <arch/stdint.h> - -typedef unsigned short umode_t; - -/* - * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the - * header files exported to user space - */ - -typedef __signed__ char __s8; -typedef unsigned char __u8; - -typedef __signed__ short __s16; -typedef unsigned short __u16; - -typedef __signed__ int __s32; -typedef unsigned int __u32; - -#if defined(__GNUC__) -__extension__ typedef __signed__ long long __s64; -__extension__ typedef unsigned long long __u64; -#endif - -typedef signed char s8; -typedef unsigned char u8; - -typedef signed short s16; -typedef unsigned short u16; - -typedef signed int s32; -typedef unsigned int u32; - -typedef signed long long s64; -typedef unsigned long long u64; - -#define BITS_PER_LONG 32 - -/* Dma addresses are 32-bits wide. */ - -typedef u32 dma_addr_t; - -typedef unsigned long phys_addr_t; -typedef unsigned long phys_size_t; - -typedef long time_t; -typedef long suseconds_t; - -#ifndef NULL -#define NULL ((void *)0) -#endif - -#endif /* __MIPS_ARCH_TYPES_H */ diff --git a/payloads/libpayload/include/mips/arch/virtual.h b/payloads/libpayload/include/mips/arch/virtual.h deleted file mode 100644 index da791eecdf..0000000000 --- a/payloads/libpayload/include/mips/arch/virtual.h +++ /dev/null @@ -1,34 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2014 Imagination Technologies - * - * 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; version 2 of the License. - * - * 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. - */ - -#ifndef __MIPS_ARCH_VIRTUAL_H -#define __MIPS_ARCH_VIRTUAL_H - -#define KSEG0_BASE 0x80000000 -#define KSEG1_BASE 0xA0000000 - -#define kseg0_to_phys(virt) ((unsigned long)(virt) - KSEG0_BASE) -#define phys_to_kseg0(phys) ((void *)((unsigned long)(phys) + KSEG0_BASE)) - -#define kseg1_to_phys(virt) ((unsigned long)(virt) - KSEG1_BASE) -#define phys_to_kseg1(phys) ((void *)((unsigned long)(phys) + KSEG1_BASE)) - -#define virt_to_phys(virt) ((unsigned long)(virt)) -#define phys_to_virt(phys) ((void *)(unsigned long)(phys)) - -#define virt_to_bus(virt) kseg1_to_phys(virt) -#define bus_to_virt(phys) phys_to_kseg1(phys) - -#endif diff --git a/payloads/libpayload/libc/64bit_div.c b/payloads/libpayload/libc/64bit_div.c deleted file mode 100644 index 5cd5bc5e95..0000000000 --- a/payloads/libpayload/libc/64bit_div.c +++ /dev/null @@ -1,141 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright 2014 Google Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <libpayload-config.h> -#include <stdlib.h> - -#if !CONFIG(LP_LITTLE_ENDIAN) -#error this code is for little endian only -#endif - -union overlay64 { - uint64_t longw; - struct { - uint32_t lower; - uint32_t higher; - } words; -}; - - -uint64_t __ashldi3(uint64_t num, unsigned shift) -{ - union overlay64 output; - - output.longw = num; - if (shift >= 32) { - output.words.higher = output.words.lower << (shift - 32); - output.words.lower = 0; - } else { - if (!shift) - return num; - output.words.higher = (output.words.higher << shift) | - (output.words.lower >> (32 - shift)); - output.words.lower = output.words.lower << shift; - } - return output.longw; -} - -uint64_t __lshrdi3(uint64_t num, unsigned shift) -{ - union overlay64 output; - - output.longw = num; - if (shift >= 32) { - output.words.lower = output.words.higher >> (shift - 32); - output.words.higher = 0; - } else { - if (!shift) - return num; - output.words.lower = output.words.lower >> shift | - (output.words.higher << (32 - shift)); - output.words.higher = output.words.higher >> shift; - } - return output.longw; -} - -#define MAX_32BIT_UINT ((((uint64_t)1) << 32) - 1) - -static uint64_t _64bit_divide(uint64_t dividend, - uint64_t divider, uint64_t *rem_p) -{ - uint64_t result = 0; - - /* - * If divider is zero - let the rest of the system care about the - * exception. - */ - if (!divider) - return 1/(uint32_t)divider; - - /* As an optimization, let's not use 64 bit division unless we must. */ - if (dividend <= MAX_32BIT_UINT) { - if (divider > MAX_32BIT_UINT) { - result = 0; - if (rem_p) - *rem_p = divider; - } else { - result = (uint32_t) dividend / (uint32_t) divider; - if (rem_p) - *rem_p = (uint32_t) dividend % - (uint32_t) divider; - } - return result; - } - - while (divider <= dividend) { - uint64_t locald = divider; - uint64_t limit = __lshrdi3(dividend, 1); - int shifts = 0; - - while (locald <= limit) { - shifts++; - locald = locald + locald; - } - result |= __ashldi3(1, shifts); - dividend -= locald; - } - - if (rem_p) - *rem_p = dividend; - - return result; -} - -uint64_t __udivdi3(uint64_t num, uint64_t den) -{ - return _64bit_divide(num, den, NULL); -} - -uint64_t __umoddi3(uint64_t num, uint64_t den) -{ - uint64_t v = 0; - - _64bit_divide(num, den, &v); - return v; -} diff --git a/payloads/libpayload/libc/Makefile.inc b/payloads/libpayload/libc/Makefile.inc index edef62cc4d..348dc117ea 100644 --- a/payloads/libpayload/libc/Makefile.inc +++ b/payloads/libpayload/libc/Makefile.inc @@ -39,7 +39,3 @@ libc-$(CONFIG_LP_LIBC) += hexdump.c libc-$(CONFIG_LP_LIBC) += die.c libc-$(CONFIG_LP_LIBC) += coreboot.c libc-$(CONFIG_LP_LIBC) += fmap.c - -ifeq ($(CONFIG_LP_ARCH_MIPS),y) -libc-$(CONFIG_LP_LIBC) += 64bit_div.c -endif diff --git a/payloads/libpayload/sample/Makefile b/payloads/libpayload/sample/Makefile index 18121dfe80..b67d876efa 100644 --- a/payloads/libpayload/sample/Makefile +++ b/payloads/libpayload/sample/Makefile @@ -34,7 +34,6 @@ include ../.xcompile ARCH-$(CONFIG_LP_ARCH_ARM) := arm ARCH-$(CONFIG_LP_ARCH_X86) := x86_32 ARCH-$(CONFIG_LP_ARCH_ARM64) := arm64 -ARCH-$(CONFIG_LP_ARCH_MIPS) := mips CC := $(CC_$(ARCH-y)) AS := $(AS_$(ARCH-y)) |