ramips: Add support for mt7621 to lzma-loader
Signed-off-by: Tobias Schramm <tobleminer@gmail.com>
This commit is contained in:
Tobias Schramm
Mathias Kresin
parent
feb0a0bf22
commit
4fa85a625f
5 changed files with 60 additions and 18 deletions
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@ -16,6 +16,7 @@ TARGET_DIR :=
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FLASH_OFFS :=
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FLASH_MAX :=
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BOARD :=
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PLATFORM :=
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ifeq ($(TARGET_DIR),)
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TARGET_DIR := $(KDIR)
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@ -42,7 +43,7 @@ loader-compile: $(PKG_BUILD_DIR)/.prepared
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FLASH_OFFS=$(FLASH_OFFS) \
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FLASH_MAX=$(FLASH_MAX) \
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BOARD="$(BOARD)" \
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PLATFORM="ralink" \
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PLATFORM="$(PLATFORM)" \
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clean all
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loader.gz: $(PKG_BUILD_DIR)/loader.bin
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@ -22,35 +22,39 @@ BOARD :=
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FLASH_OFFS :=
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FLASH_MAX :=
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PLATFORM :=
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CACHE_FLAGS :=
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CC := $(CROSS_COMPILE)gcc
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LD := $(CROSS_COMPILE)ld
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OBJCOPY := $(CROSS_COMPILE)objcopy
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OBJDUMP := $(CROSS_COMPILE)objdump
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BIN_FLAGS := -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
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include $(PLATFORM).mk
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BIN_FLAGS := -O binary -R .reginfo -R .note -R .comment -R .mdebug \
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-R .MIPS.abiflags -S
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CFLAGS = -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
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-fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 \
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-mno-abicalls -fno-pic -ffunction-sections -pipe -mlong-calls \
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-fno-common -ffreestanding -fhonour-copts \
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-fno-common -ffreestanding -fhonour-copts -nostartfiles \
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-mabi=32 -march=mips32r2 \
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-Wa,-32 -Wa,-march=mips32r2 -Wa,-mips32r2 -Wa,--trap
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CFLAGS += -D_LZMA_PROB32 -DARCH=$(PLATFORM)
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CFLAGS += -D_LZMA_PROB32
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CFLAGS += -flto
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CFLAGS += $(CACHE_FLAGS)
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ASFLAGS = $(CFLAGS) -D__ASSEMBLY__
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LDFLAGS = -static --gc-sections -no-warn-mismatch
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LDFLAGS += -e startup -T loader.lds -Ttext $(LZMA_TEXT_START)
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LDFLAGS = -static -Wl,--gc-sections -Wl,-no-warn-mismatch
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LDFLAGS += -Wl,-e,startup -T loader.lds -Wl,-Ttext,$(LZMA_TEXT_START)
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LDFLAGS += -flto -fwhole-program -Wl,-z,max-page-size=4096
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O_FORMAT = $(shell $(OBJDUMP) -i | head -2 | grep elf32)
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OBJECTS := head.o loader.o cache.o board-$(PLATFORM).o printf.o LzmaDecode.o
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include $(PLATFORM).mk
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CFLAGS+=$(CACHE_FLAGS)
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ASFLAGS+=$(CACHE_FLAGS)
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ifneq ($(strip $(LOADER_DATA)),)
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OBJECTS += data.o
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CFLAGS += -DLZMA_WRAPPER=1 -DLOADADDR=$(LOADADDR)
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@ -68,11 +72,6 @@ ifneq ($(strip $(FLASH_MAX)),)
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CFLAGS += -DCONFIG_FLASH_MAX=$(FLASH_MAX)
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endif
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BOARD_DEF := $(shell echo $(strip $(BOARD)) | tr a-z A-Z | tr - _)
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ifneq ($(BOARD_DEF),)
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CFLAGS += -DCONFIG_BOARD_$(BOARD_DEF)
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endif
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all: loader.elf
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# Don't build dependencies, this may die if $(CC) isn't gcc
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@ -90,7 +89,7 @@ data.o: $(LOADER_DATA)
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$(LD) -r -b binary --oformat $(O_FORMAT) -T lzma-data.lds -o $@ $<
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loader: $(OBJECTS)
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$(LD) $(LDFLAGS) -o $@ $(OBJECTS)
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$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJECTS)
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loader.bin: loader
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$(OBJCOPY) $(BIN_FLAGS) $< $@
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@ -99,7 +98,7 @@ loader2.o: loader.bin
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$(LD) -r -b binary --oformat $(O_FORMAT) -o $@ $<
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loader.elf: loader2.o
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$(LD) -e startup -T loader2.lds -Ttext $(LOADADDR) -o $@ $<
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$(LD) -e startup -T loader2.lds -Ttext $(LOADADDR) -z max-page-size=4096 -o $@ $<
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mrproper: clean
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39
target/linux/ramips/image/lzma-loader/src/board-mt7621.c
Normal file
39
target/linux/ramips/image/lzma-loader/src/board-mt7621.c
Normal file
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@ -0,0 +1,39 @@
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/*
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* Arch specific code for mt7621 based boards, based on code for Ralink boards
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*
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* Copyright (C) 2018 Tobias Schramm <tobleminer@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include <stddef.h>
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#include <stdint.h>
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#include "config.h"
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#define READREG(r) *(volatile uint32_t *)(r)
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#define WRITEREG(r,v) *(volatile uint32_t *)(r) = v
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#define KSEG1ADDR(_x) (((_x) & 0x1fffffff) | 0xa0000000)
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#define UART_BASE 0xBE000C00
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#define UART_TBR_OFFSET 0x00
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#define UART_LSR_OFFSET 0x14
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#define UART_LSR_TEMT (1 << 6)
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#define UART_READ(r) READREG(UART_BASE + (r))
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#define UART_WRITE(r,v) WRITEREG(UART_BASE + (r), (v))
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void board_putc(int ch)
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{
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while (((UART_READ(UART_LSR_OFFSET)) & UART_LSR_TEMT) == 0);
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UART_WRITE(UART_TBR_OFFSET, ch);
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while (((UART_READ(UART_LSR_OFFSET)) & UART_LSR_TEMT) == 0);
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}
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void board_init(void)
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{
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}
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@ -21,6 +21,7 @@
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#include <stddef.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include "config.h"
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#include "cache.h"
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@ -73,9 +74,10 @@ static unsigned long lzma_outsize;
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static unsigned long kernel_la;
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#ifdef CONFIG_KERNEL_CMDLINE
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#define kernel_argc 1
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#define kernel_argc 2
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static const char kernel_cmdline[] = CONFIG_KERNEL_CMDLINE;
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static const char *kernel_argv[] = {
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NULL,
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kernel_cmdline,
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NULL,
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};
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1
target/linux/ramips/image/lzma-loader/src/mt7621.mk
Normal file
1
target/linux/ramips/image/lzma-loader/src/mt7621.mk
Normal file
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@ -0,0 +1 @@
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CACHE_FLAGS+=-DCONFIG_ICACHE_SIZE="(32 * 1024)" -DCONFIG_DCACHE_SIZE="(16 * 1024)" -DCONFIG_CACHELINE_SIZE=32
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