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nds32/lib: add generic funcs in NDS32 lib
Add Makefile, board.c, interrupts.c and bootm.c functions to nds32 architecture. Signed-off-by: Macpaul Lin <macpaul@andestech.com>
This commit is contained in:
Macpaul Lin
Wolfgang Denk
parent
445a886d7a
commit
463d47f66c
5 changed files with 890 additions and 0 deletions
35
arch/nds32/config.mk
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35
arch/nds32/config.mk
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@ -0,0 +1,35 @@
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#
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# (C) Copyright 2000-2002
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# (C) Copyright 2011
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# Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
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# Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
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#
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# See file CREDITS for list of people who contributed to this
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# project.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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# MA 02111-1307 USA
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CROSS_COMPILE ?= nds32le-linux-
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CONFIG_STANDALONE_LOAD_ADDR = 0x300000 -T nds32.lds
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PLATFORM_RELFLAGS += -fno-strict-aliasing -fno-common -mrelax
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PLATFORM_RELFLAGS += -gdwarf-2
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PLATFORM_CPPFLAGS += -DCONFIG_NDS32 -D__nds32__ -G0 -ffixed-10 -fpie
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LDFLAGS_u-boot = --gc-sections --relax
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46
arch/nds32/lib/Makefile
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46
arch/nds32/lib/Makefile
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@ -0,0 +1,46 @@
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#
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# (C) Copyright 2000-2006
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# Copyright (C) 2011 Andes Technology Corporation
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# Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
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# Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
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#
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# See file CREDITS for list of people who contributed to this
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# project.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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# MA 02111-1307 USA
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#
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include $(TOPDIR)/config.mk
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LIB = $(obj)lib$(ARCH).o
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OBJS := board.o bootm.o interrupts.o
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all: $(LIB)
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$(LIB): $(OBJS) $(SOBJS)
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$(call cmd_link_o_target, $(OBJS))
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#########################################################################
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# defines $(obj).depend target
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include $(SRCTREE)/rules.mk
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sinclude $(obj).depend
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#########################################################################
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439
arch/nds32/lib/board.c
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439
arch/nds32/lib/board.c
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@ -0,0 +1,439 @@
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/*
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* (C) Copyright 2002-2006
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* Copyright (C) 2011 Andes Technology Corporation
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* Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
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* Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <malloc.h>
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#include <stdio_dev.h>
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#include <timestamp.h>
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#include <version.h>
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#include <net.h>
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#include <serial.h>
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#include <nand.h>
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#include <onenand_uboot.h>
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#include <mmc.h>
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DECLARE_GLOBAL_DATA_PTR;
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ulong monitor_flash_len;
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/*
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* Init Utilities
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*/
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#if !defined(CONFIG_BAUDRATE)
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#define CONFIG_BAUDRATE 38400
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#endif
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static int init_baudrate(void)
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{
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char tmp[64]; /* long enough for environment variables */
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int i = getenv_f("baudrate", tmp, sizeof(tmp));
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gd->bd->bi_baudrate = gd->baudrate = (i > 0)
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? (int) simple_strtoul(tmp, NULL, 10)
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: CONFIG_BAUDRATE;
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return 0;
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}
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/*
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* WARNING: this code looks "cleaner" than the PowerPC version, but
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* has the disadvantage that you either get nothing, or everything.
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* On PowerPC, you might see "DRAM: " before the system hangs - which
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* gives a simple yet clear indication which part of the
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* initialization if failing.
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*/
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static int display_dram_config(void)
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{
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int i;
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#ifdef DEBUG
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puts("RAM Configuration:\n");
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for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
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printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
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print_size(gd->bd->bi_dram[i].size, "\n");
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}
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#else
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ulong size = 0;
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for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
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size += gd->bd->bi_dram[i].size;
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puts("DRAM: ");
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print_size(size, "\n");
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#endif
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return 0;
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}
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#ifndef CONFIG_SYS_NO_FLASH
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static void display_flash_config(ulong size)
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{
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puts("Flash: ");
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print_size(size, "\n");
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}
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#endif /* CONFIG_SYS_NO_FLASH */
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#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
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#include <pci.h>
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static int nds32_pci_init(void)
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{
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pci_init();
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return 0;
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}
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#endif /* CONFIG_CMD_PCI || CONFIG_PCI */
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#if defined(CONFIG_PMU) || defined(CONFIG_PCU)
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static int pmu_init(void)
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{
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#if defined(CONFIG_FTPMU010_POWER)
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#ifdef __NDS32_N1213_43U1H__ /* AG101: internal definition in toolchain */
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ftpmu010_sdram_clk_disable(CONFIG_SYS_FTPMU010_PDLLCR0_HCLKOUTDIS);
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ftpmu010_mfpsr_select_dev(FTPMU010_MFPSR_AC97CLKSEL);
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ftpmu010_sdramhtc_set(CONFIG_SYS_FTPMU010_SDRAMHTC);
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#endif /* __NDS32_N1213_43U1H__ */
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#endif
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return 0;
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}
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#endif
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/*
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* Breathe some life into the board...
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*
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* Initialize a serial port as console, and carry out some hardware
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* tests.
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*
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* The first part of initialization is running from Flash memory;
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* its main purpose is to initialize the RAM so that we
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* can relocate the monitor code to RAM.
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*/
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/*
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* All attempts to come up with a "common" initialization sequence
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* that works for all boards and architectures failed: some of the
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* requirements are just _too_ different. To get rid of the resulting
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* mess of board dependent #ifdef'ed code we now make the whole
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* initialization sequence configurable to the user.
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*
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* The requirements for any new initalization function is simple: it
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* receives a pointer to the "global data" structure as it's only
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* argument, and returns an integer return code, where 0 means
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* "continue" and != 0 means "fatal error, hang the system".
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*/
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typedef int (init_fnc_t)(void);
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void __dram_init_banksize(void)
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{
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gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
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gd->bd->bi_dram[0].size = gd->ram_size;
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}
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void dram_init_banksize(void)
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__attribute__((weak, alias("__dram_init_banksize")));
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init_fnc_t *init_sequence[] = {
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#if defined(CONFIG_ARCH_CPU_INIT)
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arch_cpu_init, /* basic arch cpu dependent setup */
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#endif
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#if defined(CONFIG_PMU) || defined(CONFIG_PCU)
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#ifndef CONFIG_SKIP_LOWLEVEL_INIT
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pmu_init,
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#endif
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#endif
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board_init, /* basic board dependent setup */
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#if defined(CONFIG_USE_IRQ)
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interrupt_init, /* set up exceptions */
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#endif
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timer_init, /* initialize timer */
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env_init, /* initialize environment */
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init_baudrate, /* initialze baudrate settings */
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serial_init, /* serial communications setup */
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console_init_f, /* stage 1 init of console */
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#if defined(CONFIG_DISPLAY_BOARDINFO)
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checkboard, /* display board info */
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#endif
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#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
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init_func_i2c,
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#endif
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dram_init, /* configure available RAM banks */
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display_dram_config,
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NULL,
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};
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void board_init_f(ulong bootflag)
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{
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bd_t *bd;
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init_fnc_t **init_fnc_ptr;
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gd_t *id;
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ulong addr, addr_sp;
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/* Pointer is writable since we allocated a register for it */
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gd = (gd_t *) ((CONFIG_SYS_INIT_SP_ADDR) & ~0x07);
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memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
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gd->mon_len = (unsigned int)(&__bss_end__) - (unsigned int)(&_start);
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for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
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if ((*init_fnc_ptr)() != 0)
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hang();
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}
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debug("monitor len: %08lX\n", gd->mon_len);
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/*
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* Ram is setup, size stored in gd !!
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*/
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debug("ramsize: %08lX\n", gd->ram_size);
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addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
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#if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF))
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/* reserve TLB table */
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addr -= (4096 * 4);
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/* round down to next 64 kB limit */
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addr &= ~(0x10000 - 1);
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gd->tlb_addr = addr;
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debug("TLB table at: %08lx\n", addr);
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#endif
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/* round down to next 4 kB limit */
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addr &= ~(4096 - 1);
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debug("Top of RAM usable for U-Boot at: %08lx\n", addr);
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#ifdef CONFIG_LCD
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#ifdef CONFIG_FB_ADDR
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gd->fb_base = CONFIG_FB_ADDR;
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#else
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/* reserve memory for LCD display (always full pages) */
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addr = lcd_setmem(addr);
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gd->fb_base = addr;
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#endif /* CONFIG_FB_ADDR */
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#endif /* CONFIG_LCD */
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/*
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* reserve memory for U-Boot code, data & bss
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* round down to next 4 kB limit
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*/
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addr -= gd->mon_len;
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addr &= ~(4096 - 1);
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debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, addr);
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/*
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* reserve memory for malloc() arena
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*/
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addr_sp = addr - TOTAL_MALLOC_LEN;
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debug("Reserving %dk for malloc() at: %08lx\n",
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TOTAL_MALLOC_LEN >> 10, addr_sp);
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/*
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* (permanently) allocate a Board Info struct
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* and a permanent copy of the "global" data
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*/
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addr_sp -= GENERATED_BD_INFO_SIZE;
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bd = (bd_t *) addr_sp;
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gd->bd = bd;
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memset((void *)bd, 0, GENERATED_BD_INFO_SIZE);
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debug("Reserving %zu Bytes for Board Info at: %08lx\n",
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GENERATED_BD_INFO_SIZE, addr_sp);
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addr_sp -= GENERATED_GBL_DATA_SIZE;
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id = (gd_t *) addr_sp;
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debug("Reserving %zu Bytes for Global Data at: %08lx\n",
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GENERATED_GBL_DATA_SIZE, addr_sp);
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/* setup stackpointer for exeptions */
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gd->irq_sp = addr_sp;
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#ifdef CONFIG_USE_IRQ
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addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
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debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
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CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ, addr_sp);
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#endif
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/* leave 3 words for abort-stack */
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addr_sp -= 12;
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/* 8-byte alignment for ABI compliance */
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addr_sp &= ~0x07;
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debug("New Stack Pointer is: %08lx\n", addr_sp);
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gd->bd->bi_baudrate = gd->baudrate;
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/* Ram isn't board specific, so move it to board code ... */
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dram_init_banksize();
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display_dram_config(); /* and display it */
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||||||
|
gd->relocaddr = addr;
|
||||||
|
gd->start_addr_sp = addr_sp;
|
||||||
|
|
||||||
|
gd->reloc_off = addr - _TEXT_BASE;
|
||||||
|
|
||||||
|
debug("relocation Offset is: %08lx\n", gd->reloc_off);
|
||||||
|
memcpy(id, (void *)gd, GENERATED_GBL_DATA_SIZE);
|
||||||
|
|
||||||
|
relocate_code(addr_sp, id, addr);
|
||||||
|
|
||||||
|
/* NOTREACHED - relocate_code() does not return */
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* This is the next part if the initialization sequence: we are now
|
||||||
|
* running from RAM and have a "normal" C environment, i. e. global
|
||||||
|
* data can be written, BSS has been cleared, the stack size in not
|
||||||
|
* that critical any more, etc.
|
||||||
|
*/
|
||||||
|
void board_init_r(gd_t *id, ulong dest_addr)
|
||||||
|
{
|
||||||
|
char *s;
|
||||||
|
bd_t *bd;
|
||||||
|
ulong malloc_start;
|
||||||
|
|
||||||
|
extern void malloc_bin_reloc(void);
|
||||||
|
|
||||||
|
gd = id;
|
||||||
|
bd = gd->bd;
|
||||||
|
|
||||||
|
gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
|
||||||
|
|
||||||
|
monitor_flash_len = &_end - &_start;
|
||||||
|
debug("monitor flash len: %08lX\n", monitor_flash_len);
|
||||||
|
|
||||||
|
board_init(); /* Setup chipselects */
|
||||||
|
|
||||||
|
#if defined(CONFIG_NEEDS_MANUAL_RELOC)
|
||||||
|
/*
|
||||||
|
* We have to relocate the command table manually
|
||||||
|
*/
|
||||||
|
fixup_cmdtable(&__u_boot_cmd_start,
|
||||||
|
(ulong)(&__u_boot_cmd_end - &__u_boot_cmd_start));
|
||||||
|
#endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
|
||||||
|
|
||||||
|
#ifdef CONFIG_SERIAL_MULTI
|
||||||
|
serial_initialize();
|
||||||
|
#endif
|
||||||
|
|
||||||
|
debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
|
||||||
|
|
||||||
|
/* The Malloc area is immediately below the monitor copy in DRAM */
|
||||||
|
malloc_start = dest_addr - TOTAL_MALLOC_LEN;
|
||||||
|
mem_malloc_init(malloc_start, TOTAL_MALLOC_LEN);
|
||||||
|
malloc_bin_reloc();
|
||||||
|
|
||||||
|
#ifndef CONFIG_SYS_NO_FLASH
|
||||||
|
/* configure available FLASH banks */
|
||||||
|
gd->bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
|
||||||
|
gd->bd->bi_flashsize = flash_init();
|
||||||
|
gd->bd->bi_flashoffset = CONFIG_SYS_FLASH_BASE + gd->bd->bi_flashsize;
|
||||||
|
|
||||||
|
if (gd->bd->bi_flashsize)
|
||||||
|
display_flash_config(gd->bd->bi_flashsize);
|
||||||
|
#endif /* CONFIG_SYS_NO_FLASH */
|
||||||
|
|
||||||
|
#if defined(CONFIG_CMD_NAND)
|
||||||
|
puts("NAND: ");
|
||||||
|
nand_init(); /* go init the NAND */
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifdef CONFIG_GENERIC_MMC
|
||||||
|
puts("MMC: ");
|
||||||
|
mmc_initialize(gd->bd);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/* initialize environment */
|
||||||
|
env_relocate();
|
||||||
|
|
||||||
|
#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
|
||||||
|
nds32_pci_init();
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/* IP Address */
|
||||||
|
gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr");
|
||||||
|
|
||||||
|
stdio_init(); /* get the devices list going. */
|
||||||
|
|
||||||
|
jumptable_init();
|
||||||
|
|
||||||
|
#if defined(CONFIG_API)
|
||||||
|
/* Initialize API */
|
||||||
|
api_init();
|
||||||
|
#endif
|
||||||
|
|
||||||
|
console_init_r(); /* fully init console as a device */
|
||||||
|
|
||||||
|
#if defined(CONFIG_ARCH_MISC_INIT)
|
||||||
|
/* miscellaneous arch dependent initialisations */
|
||||||
|
arch_misc_init();
|
||||||
|
#endif
|
||||||
|
#if defined(CONFIG_MISC_INIT_R)
|
||||||
|
/* miscellaneous platform dependent initialisations */
|
||||||
|
misc_init_r();
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if defined(CONFIG_USE_IRQ)
|
||||||
|
/* set up exceptions */
|
||||||
|
interrupt_init();
|
||||||
|
/* enable exceptions */
|
||||||
|
enable_interrupts();
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/* Initialize from environment */
|
||||||
|
s = getenv("loadaddr");
|
||||||
|
if (s != NULL)
|
||||||
|
load_addr = simple_strtoul(s, NULL, 16);
|
||||||
|
|
||||||
|
#if defined(CONFIG_CMD_NET)
|
||||||
|
s = getenv("bootfile");
|
||||||
|
if (s != NULL)
|
||||||
|
copy_filename(BootFile, s, sizeof(BootFile));
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifdef BOARD_LATE_INIT
|
||||||
|
board_late_init();
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if defined(CONFIG_CMD_NET)
|
||||||
|
puts("Net: ");
|
||||||
|
|
||||||
|
eth_initialize(gd->bd);
|
||||||
|
#if defined(CONFIG_RESET_PHY_R)
|
||||||
|
debug("Reset Ethernet PHY\n");
|
||||||
|
reset_phy();
|
||||||
|
#endif
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/* main_loop() can return to retry autoboot, if so just run it again. */
|
||||||
|
for (;;)
|
||||||
|
main_loop();
|
||||||
|
|
||||||
|
/* NOTREACHED - no way out of command loop except booting */
|
||||||
|
}
|
||||||
|
|
||||||
|
void hang(void)
|
||||||
|
{
|
||||||
|
puts("### ERROR ### Please RESET the board ###\n");
|
||||||
|
for (;;)
|
||||||
|
;
|
||||||
|
}
|
||||||
241
arch/nds32/lib/bootm.c
Normal file
241
arch/nds32/lib/bootm.c
Normal file
|
|
@ -0,0 +1,241 @@
|
||||||
|
/*
|
||||||
|
* Copyright (C) 2011 Andes Technology Corporation
|
||||||
|
* Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
|
||||||
|
* Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
|
||||||
|
*
|
||||||
|
* 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 <image.h>
|
||||||
|
#include <u-boot/zlib.h>
|
||||||
|
#include <asm/byteorder.h>
|
||||||
|
|
||||||
|
DECLARE_GLOBAL_DATA_PTR;
|
||||||
|
|
||||||
|
#if defined(CONFIG_SETUP_MEMORY_TAGS) || \
|
||||||
|
defined(CONFIG_CMDLINE_TAG) || \
|
||||||
|
defined(CONFIG_INITRD_TAG) || \
|
||||||
|
defined(CONFIG_SERIAL_TAG) || \
|
||||||
|
defined(CONFIG_REVISION_TAG)
|
||||||
|
static void setup_start_tag(bd_t *bd);
|
||||||
|
|
||||||
|
# ifdef CONFIG_SETUP_MEMORY_TAGS
|
||||||
|
static void setup_memory_tags(bd_t *bd);
|
||||||
|
# endif
|
||||||
|
static void setup_commandline_tag(bd_t *bd, char *commandline);
|
||||||
|
|
||||||
|
# ifdef CONFIG_INITRD_TAG
|
||||||
|
static void setup_initrd_tag(bd_t *bd, ulong initrd_start, ulong initrd_end);
|
||||||
|
# endif
|
||||||
|
static void setup_end_tag(bd_t *bd);
|
||||||
|
|
||||||
|
static struct tag *params;
|
||||||
|
#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */
|
||||||
|
|
||||||
|
int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
|
||||||
|
{
|
||||||
|
bd_t *bd = gd->bd;
|
||||||
|
char *s;
|
||||||
|
int machid = bd->bi_arch_number;
|
||||||
|
void (*theKernel)(int zero, int arch, uint params);
|
||||||
|
|
||||||
|
#ifdef CONFIG_CMDLINE_TAG
|
||||||
|
char *commandline = getenv("bootargs");
|
||||||
|
#endif
|
||||||
|
|
||||||
|
if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
|
||||||
|
return 1;
|
||||||
|
|
||||||
|
theKernel = (void (*)(int, int, uint))images->ep;
|
||||||
|
|
||||||
|
s = getenv("machid");
|
||||||
|
if (s) {
|
||||||
|
machid = simple_strtoul(s, NULL, 16);
|
||||||
|
printf("Using machid 0x%x from environment\n", machid);
|
||||||
|
}
|
||||||
|
|
||||||
|
show_boot_progress(15);
|
||||||
|
|
||||||
|
debug("## Transferring control to Linux (at address %08lx) ...\n",
|
||||||
|
(ulong)theKernel);
|
||||||
|
|
||||||
|
#if defined(CONFIG_SETUP_MEMORY_TAGS) || \
|
||||||
|
defined(CONFIG_CMDLINE_TAG) || \
|
||||||
|
defined(CONFIG_INITRD_TAG) || \
|
||||||
|
defined(CONFIG_SERIAL_TAG) || \
|
||||||
|
defined(CONFIG_REVISION_TAG)
|
||||||
|
setup_start_tag(bd);
|
||||||
|
#ifdef CONFIG_SERIAL_TAG
|
||||||
|
setup_serial_tag(¶ms);
|
||||||
|
#endif
|
||||||
|
#ifdef CONFIG_REVISION_TAG
|
||||||
|
setup_revision_tag(¶ms);
|
||||||
|
#endif
|
||||||
|
#ifdef CONFIG_SETUP_MEMORY_TAGS
|
||||||
|
setup_memory_tags(bd);
|
||||||
|
#endif
|
||||||
|
#ifdef CONFIG_CMDLINE_TAG
|
||||||
|
setup_commandline_tag(bd, commandline);
|
||||||
|
#endif
|
||||||
|
#ifdef CONFIG_INITRD_TAG
|
||||||
|
if (images->rd_start && images->rd_end)
|
||||||
|
setup_initrd_tag(bd, images->rd_start, images->rd_end);
|
||||||
|
#endif
|
||||||
|
setup_end_tag(bd);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/* we assume that the kernel is in place */
|
||||||
|
printf("\nStarting kernel ...\n\n");
|
||||||
|
|
||||||
|
#ifdef CONFIG_USB_DEVICE
|
||||||
|
{
|
||||||
|
extern void udc_disconnect(void);
|
||||||
|
udc_disconnect();
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
cleanup_before_linux();
|
||||||
|
|
||||||
|
theKernel(0, machid, bd->bi_boot_params);
|
||||||
|
/* does not return */
|
||||||
|
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
#if defined(CONFIG_SETUP_MEMORY_TAGS) || \
|
||||||
|
defined(CONFIG_CMDLINE_TAG) || \
|
||||||
|
defined(CONFIG_INITRD_TAG) || \
|
||||||
|
defined(CONFIG_SERIAL_TAG) || \
|
||||||
|
defined(CONFIG_REVISION_TAG)
|
||||||
|
static void setup_start_tag(bd_t *bd)
|
||||||
|
{
|
||||||
|
params = (struct tag *)bd->bi_boot_params;
|
||||||
|
|
||||||
|
params->hdr.tag = ATAG_CORE;
|
||||||
|
params->hdr.size = tag_size(tag_core);
|
||||||
|
|
||||||
|
params->u.core.flags = 0;
|
||||||
|
params->u.core.pagesize = 0;
|
||||||
|
params->u.core.rootdev = 0;
|
||||||
|
|
||||||
|
params = tag_next(params);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
#ifdef CONFIG_SETUP_MEMORY_TAGS
|
||||||
|
static void setup_memory_tags(bd_t *bd)
|
||||||
|
{
|
||||||
|
int i;
|
||||||
|
|
||||||
|
for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
|
||||||
|
params->hdr.tag = ATAG_MEM;
|
||||||
|
params->hdr.size = tag_size(tag_mem32);
|
||||||
|
|
||||||
|
params->u.mem.start = bd->bi_dram[i].start;
|
||||||
|
params->u.mem.size = bd->bi_dram[i].size;
|
||||||
|
|
||||||
|
params = tag_next(params);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
#endif /* CONFIG_SETUP_MEMORY_TAGS */
|
||||||
|
|
||||||
|
|
||||||
|
static void setup_commandline_tag(bd_t *bd, char *commandline)
|
||||||
|
{
|
||||||
|
char *p;
|
||||||
|
|
||||||
|
if (!commandline)
|
||||||
|
return;
|
||||||
|
|
||||||
|
/* eat leading white space */
|
||||||
|
for (p = commandline; *p == ' '; p++)
|
||||||
|
;
|
||||||
|
|
||||||
|
/* skip non-existent command lines so the kernel will still
|
||||||
|
* use its default command line.
|
||||||
|
*/
|
||||||
|
if (*p == '\0')
|
||||||
|
return;
|
||||||
|
|
||||||
|
params->hdr.tag = ATAG_CMDLINE;
|
||||||
|
params->hdr.size =
|
||||||
|
(sizeof(struct tag_header) + strlen(p) + 1 + 4) >> 2;
|
||||||
|
|
||||||
|
strcpy(params->u.cmdline.cmdline, p)
|
||||||
|
;
|
||||||
|
|
||||||
|
params = tag_next(params);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
#ifdef CONFIG_INITRD_TAG
|
||||||
|
static void setup_initrd_tag(bd_t *bd, ulong initrd_start, ulong initrd_end)
|
||||||
|
{
|
||||||
|
/* an ATAG_INITRD node tells the kernel where the compressed
|
||||||
|
* ramdisk can be found. ATAG_RDIMG is a better name, actually.
|
||||||
|
*/
|
||||||
|
params->hdr.tag = ATAG_INITRD2;
|
||||||
|
params->hdr.size = tag_size(tag_initrd);
|
||||||
|
|
||||||
|
params->u.initrd.start = initrd_start;
|
||||||
|
params->u.initrd.size = initrd_end - initrd_start;
|
||||||
|
|
||||||
|
params = tag_next(params);
|
||||||
|
}
|
||||||
|
#endif /* CONFIG_INITRD_TAG */
|
||||||
|
|
||||||
|
#ifdef CONFIG_SERIAL_TAG
|
||||||
|
void setup_serial_tag(struct tag **tmp)
|
||||||
|
{
|
||||||
|
struct tag *params = *tmp;
|
||||||
|
struct tag_serialnr serialnr;
|
||||||
|
void get_board_serial(struct tag_serialnr *serialnr);
|
||||||
|
|
||||||
|
get_board_serial(&serialnr);
|
||||||
|
params->hdr.tag = ATAG_SERIAL;
|
||||||
|
params->hdr.size = tag_size(tag_serialnr);
|
||||||
|
params->u.serialnr.low = serialnr.low;
|
||||||
|
params->u.serialnr.high = serialnr.high;
|
||||||
|
params = tag_next(params);
|
||||||
|
*tmp = params;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifdef CONFIG_REVISION_TAG
|
||||||
|
void setup_revision_tag(struct tag **in_params)
|
||||||
|
{
|
||||||
|
u32 rev = 0;
|
||||||
|
u32 get_board_rev(void);
|
||||||
|
|
||||||
|
rev = get_board_rev();
|
||||||
|
params->hdr.tag = ATAG_REVISION;
|
||||||
|
params->hdr.size = tag_size(tag_revision);
|
||||||
|
params->u.revision.rev = rev;
|
||||||
|
params = tag_next(params);
|
||||||
|
}
|
||||||
|
#endif /* CONFIG_REVISION_TAG */
|
||||||
|
|
||||||
|
|
||||||
|
static void setup_end_tag(bd_t *bd)
|
||||||
|
{
|
||||||
|
params->hdr.tag = ATAG_NONE;
|
||||||
|
params->hdr.size = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */
|
||||||
129
arch/nds32/lib/interrupts.c
Normal file
129
arch/nds32/lib/interrupts.c
Normal file
|
|
@ -0,0 +1,129 @@
|
||||||
|
/*
|
||||||
|
* (C) Copyright 2002
|
||||||
|
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
|
||||||
|
* Alex Zuepke <azu@sysgo.de>
|
||||||
|
*
|
||||||
|
* Copyright (C) 2011 Andes Technology Corporation
|
||||||
|
* Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
|
||||||
|
* Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
|
||||||
|
*
|
||||||
|
* 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 <asm/ptrace.h>
|
||||||
|
#include <asm/system.h>
|
||||||
|
#undef INTERRUPT_MODE
|
||||||
|
|
||||||
|
static int int_flag;
|
||||||
|
|
||||||
|
int irq_flags; /* needed by asm-nds32/system.h */
|
||||||
|
|
||||||
|
int GIE_STATUS(void)
|
||||||
|
{
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
__asm__ __volatile__ (
|
||||||
|
"mfsr $p0, $psw\n\t"
|
||||||
|
"andi %0, %0, 0x1\n\t"
|
||||||
|
: "=r" (ret)
|
||||||
|
:
|
||||||
|
: "memory"
|
||||||
|
);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
#ifdef CONFIG_USE_INTERRUPT
|
||||||
|
|
||||||
|
/* enable interrupts */
|
||||||
|
void enable_interrupts(void)
|
||||||
|
{
|
||||||
|
local_irq_restore(int_flag);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* disable interrupts
|
||||||
|
* Return TRUE if GIE is enabled before we disable it.
|
||||||
|
*/
|
||||||
|
int disable_interrupts(void)
|
||||||
|
{
|
||||||
|
|
||||||
|
int gie_ori_status;
|
||||||
|
|
||||||
|
gie_ori_status = GIE_STATUS();
|
||||||
|
|
||||||
|
local_irq_save(int_flag);
|
||||||
|
|
||||||
|
return gie_ori_status;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
void bad_mode(void)
|
||||||
|
{
|
||||||
|
panic("Resetting CPU ...\n");
|
||||||
|
reset_cpu(0);
|
||||||
|
}
|
||||||
|
|
||||||
|
void show_regs(struct pt_regs *regs)
|
||||||
|
{
|
||||||
|
const char *processor_modes[] = {"USER", "SuperUser" , "HyperVisor"};
|
||||||
|
|
||||||
|
printf("\n");
|
||||||
|
printf("pc : [<%08lx>] sp: [<%08lx>]\n"
|
||||||
|
"lp : %08lx gp : %08lx fp : %08lx\n",
|
||||||
|
regs->ipc, regs->sp, regs->lp, regs->gp, regs->fp);
|
||||||
|
printf("D1H: %08lx D1L: %08lx D0H: %08lx D0L: %08lx\n",
|
||||||
|
regs->d1hi, regs->d1lo, regs->d0hi, regs->d0lo);
|
||||||
|
printf("r27: %08lx r26: %08lx r25: %08lx r24: %08lx\n",
|
||||||
|
regs->r[27], regs->r[26], regs->r[25], regs->r[24]);
|
||||||
|
printf("r23: %08lx r22: %08lx r21: %08lx r20: %08lx\n",
|
||||||
|
regs->r[23], regs->r[22], regs->r[21], regs->r[20]);
|
||||||
|
printf("r19: %08lx r18: %08lx r17: %08lx r16: %08lx\n",
|
||||||
|
regs->r[19], regs->r[18], regs->r[17], regs->r[16]);
|
||||||
|
printf("r15: %08lx r14: %08lx r13: %08lx r12: %08lx\n",
|
||||||
|
regs->r[15], regs->r[14], regs->r[13], regs->r[12]);
|
||||||
|
printf("r11: %08lx r10: %08lx r9 : %08lx r8 : %08lx\n",
|
||||||
|
regs->r[11], regs->r[10], regs->r[9], regs->r[8]);
|
||||||
|
printf("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n",
|
||||||
|
regs->r[7], regs->r[6], regs->r[5], regs->r[4]);
|
||||||
|
printf("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n",
|
||||||
|
regs->r[3], regs->r[2], regs->r[1], regs->r[0]);
|
||||||
|
printf(" Interrupts %s Mode %s\n",
|
||||||
|
interrupts_enabled(regs) ? "on" : "off",
|
||||||
|
processor_modes[processor_mode(regs)]);
|
||||||
|
}
|
||||||
|
|
||||||
|
void do_interruption(struct pt_regs *pt_regs, int EVIC_num)
|
||||||
|
{
|
||||||
|
const char *interruption_type[] = {
|
||||||
|
"Reset",
|
||||||
|
"TLB Fill",
|
||||||
|
"TLB Not Present",
|
||||||
|
"TLB Misc",
|
||||||
|
"VLPT Miss",
|
||||||
|
"Cache Parity Error",
|
||||||
|
"Debug",
|
||||||
|
"General Exception",
|
||||||
|
"External Interrupt"
|
||||||
|
};
|
||||||
|
|
||||||
|
printf("%s\n", interruption_type[EVIC_num]);
|
||||||
|
show_regs(pt_regs);
|
||||||
|
bad_mode();
|
||||||
|
}
|
||||||
Loading…
Add table
Reference in a new issue