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[Microblaze][PATCH]

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timer support
interrupt controller support
flash support
ethernet support
cache support
board information support
env support
booting image support

adding support for Xilinx ML401
master
Michal Simek 18 years ago
parent fdd1d6dcc9
commit 76316a318d
16 changed files with 1139 additions and 0 deletions
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  1. 65
      board/xilinx/ml401/Makefile
  2. 29
      board/xilinx/ml401/config.mk
  3. 49
      board/xilinx/ml401/ml401.c
  4. 66
      board/xilinx/ml401/u-boot.lds
  5. 56
      board/xilinx/ml401/xparameters.h
  6. 48
      cpu/microblaze/cache.c
  7. 68
      cpu/microblaze/dcache.S
  8. 46
      cpu/microblaze/disable_int.S
  9. 38
      cpu/microblaze/enable_int.S
  10. 68
      cpu/microblaze/exception.c
  11. 69
      cpu/microblaze/icache.S
  12. 165
      cpu/microblaze/irq.S
  13. 68
      cpu/microblaze/timer.c
  14. 41
      include/asm-microblaze/microblaze_intc.h
  15. 42
      include/asm-microblaze/microblaze_timer.h
  16. 221
      include/configs/ml401.h

65
board/xilinx/ml401/Makefile
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#
# (C) Copyright 2000-2006
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# 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 $(TOPDIR)/config.mk
ifneq ($(OBJTREE),$(SRCTREE))
$(shell mkdir -p $(obj)../common)
$(shell mkdir -p $(obj)../xilinx_enet)
endif
INCS := -I../common -I../xilinx_enet
CFLAGS += $(INCS)
HOST_CFLAGS += $(INCS)
LIB = $(obj)lib$(BOARD).a
COBJS = $(BOARD).o \
../xilinx_enet/emac_adapter.o ../xilinx_enet/xemac.o \
../xilinx_enet/xemac_options.o ../xilinx_enet/xemac_polled.o \
../xilinx_enet/xemac_intr.o ../xilinx_enet/xemac_g.o \
../xilinx_enet/xemac_intr_dma.o ../common/xipif_v1_23_b.o \
../common/xbasic_types.o ../common/xdma_channel.o \
../common/xdma_channel_sg.o ../common/xpacket_fifo_v1_00_b.o \
../common/xversion.o \
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
SOBJS := $(addprefix $(obj),$(SOBJS))
$(LIB): $(OBJS) $(SOBJS)
$(AR) $(ARFLAGS) $@ $^
clean:
rm -f $(SOBJS) $(OBJS)
distclean: clean
rm -f $(LIB) core *.bak .depend
#########################################################################
# defines $(obj).depend target
include $(SRCTREE)/rules.mk
sinclude $(obj).depend
#########################################################################

29
board/xilinx/ml401/config.mk
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#
# (C) Copyright 2004 Atmark Techno, Inc.
#
# Yasushi SHOJI <yashi@atmark-techno.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
#
TEXT_BASE = 0x12000000
PLATFORM_CPPFLAGS += -mno-xl-soft-mul
PLATFORM_CPPFLAGS += -mno-xl-soft-div
PLATFORM_CPPFLAGS += -mxl-barrel-shift

49
board/xilinx/ml401/ml401.c
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/*
* (C) Copyright 2007 Michal Simek
*
* Michal SIMEK <monstr@monstr.eu>
*
* 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
*/
/* This is a board specific file. It's OK to include board specific
* header files */
#include <common.h>
#include <configs/ml401.h>
void do_reset (void)
{
#ifdef CFG_GPIO_0
*((unsigned long *)(CFG_GPIO_0_ADDR)) =
++(*((unsigned long *)(CFG_GPIO_0_ADDR)));
#endif
#ifdef CFG_RESET_ADDRESS
puts ("Reseting board\n");
asm ("bra r0");
#endif
}
int gpio_init (void)
{
#ifdef CFG_GPIO_0
*((unsigned long *)(CFG_GPIO_0_ADDR)) = 0x0;
#endif
return 0;
}

66
board/xilinx/ml401/u-boot.lds
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/*
* (C) Copyright 2004 Atmark Techno, Inc.
*
* Yasushi SHOJI <yashi@atmark-techno.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
*/
OUTPUT_ARCH(microblaze)
ENTRY(_start)
SECTIONS
{
.text ALIGN(0x4):
{
__text_start = .;
cpu/microblaze/start.o (.text)
*(.text)
__text_end = .;
}
.rodata ALIGN(0x4):
{
__rodata_start = .;
*(.rodata)
__rodata_end = .;
}
.data ALIGN(0x4):
{
__data_start = .;
*(.data)
__data_end = .;
}
.u_boot_cmd ALIGN(0x4):
{
. = .;
__u_boot_cmd_start = .;
*(.u_boot_cmd)
__u_boot_cmd_end = .;
}
.bss ALIGN(0x4):
{
__bss_start = .;
*(.bss)
__bss_end = .;
}
}

56
board/xilinx/ml401/xparameters.h
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/*
* (C) Copyright 2007 Michal Simek
*
* Michal SIMEK <monstr@monstr.eu>
*
* 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
*/
/* DDR SDRAM */
#define CONFIG_XILINX_ERAM_START 0x10000000
#define CONFIG_XILINX_ERAM_SIZE 0x04000000
/* FLASH_MEMORY Settings */
#define CONFIG_XILINX_FLASH_START 0x28000000
#define CONFIG_XILINX_FLASH_SIZE 0x00800000
/* serial line */
#define CONFIG_XILINX_UARTLITE_0_BASEADDR 0xA0000000
#define CONFIG_XILINX_UARTLITE_0_BAUDRATE 115200
/* GPIO */
#define CONFIG_XILINX_GPIO_0_BASEADDR 0x90000000
/* INTC */
#define CONFIG_XILINX_INTC_0_BASEADDR 0xD1000FC0
#define CONFIG_XILINX_INTC_0_NUM_INTR_INPUTS 12
/* TIMER */
#define CONFIG_XILINX_TIMER_0_BASEADDR 0xA2000000
#define CONFIG_XILINX_TIMER_0_IRQ 0
/* ethernet */
#define XPAR_XEMAC_NUM_INSTANCES 1
#define XPAR_OPB_ETHERNET_0_BASEADDR 0x60000000
#define XPAR_OPB_ETHERNET_0_HIGHADDR 0x60003FFF
#define XPAR_OPB_ETHERNET_0_DEVICE_ID 0
#define XPAR_EMAC_0_DEVICE_ID 0
#define XPAR_OPB_ETHERNET_0_ERR_COUNT_EXIST 1
#define XPAR_OPB_ETHERNET_0_DMA_PRESENT 1
#define XPAR_OPB_ETHERNET_0_MII_EXIST 1

48
cpu/microblaze/cache.c
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/*
* (C) Copyright 2007 Michal Simek
*
* Michal SIMEK <moonstr@monstr.eu>
*
* 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>
#if (CONFIG_COMMANDS & CFG_CMD_CACHE)
int dcache_status (void)
{
int i = 0;
int mask = 0x80;
__asm__ __volatile__ ("mfs %0,rmsr"::"r" (i):"memory");
/* i&=0x80 */
__asm__ __volatile__ ("and %0,%0,%1"::"r" (i), "r" (mask):"memory");
return i;
}
int icache_status (void)
{
int i = 0;
int mask = 0x20;
__asm__ __volatile__ ("mfs %0,rmsr"::"r" (i):"memory");
/* i&=0x20 */
__asm__ __volatile__ ("and %0,%0,%1"::"r" (i), "r" (mask):"memory");
return i;
}
#endif

68
cpu/microblaze/dcache.S
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/*
* (C) Copyright 2007 Michal Simek
*
* Michal SIMEK <monstr@monstr.eu>
*
* 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
*/
.text
.globl dcache_enable
.ent dcache_enable
.align 2
dcache_enable:
/* Make space on stack for a temporary */
addi r1, r1, -4
/* Save register r12 */
swi r12, r1, 0
/* Read the MSR register */
mfs r12, rmsr
/* Set the instruction enable bit */
ori r12, r12, 0x80
/* Save the MSR register */
mts rmsr, r12
/* Load register r12 */
lwi r12, r1, 0
/* Return */
rtsd r15, 8
/* Update stack in the delay slot */
addi r1, r1, 4
.end dcache_enable
.text
.globl dcache_disable
.ent dcache_disable
.align 2
dcache_disable:
/* Make space on stack for a temporary */
addi r1, r1, -4
/* Save register r12 */
swi r12, r1, 0
/* Read the MSR register */
mfs r12, rmsr
/* Clear the data cache enable bit */
andi r12, r12, ~0x80
/* Save the MSR register */
mts rmsr, r12
/* Load register r12 */
lwi r12, r1, 0
/* Return */
rtsd r15, 8
/* Update stack in the delay slot */
addi r1, r1, 4
.end dcache_disable

46
cpu/microblaze/disable_int.S
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/*
* (C) Copyright 2007 Michal Simek
*
* Michal SIMEK <monstr@monstr.eu>
*
* 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
*/
.text
.globl microblaze_disable_interrupts
.ent microblaze_disable_interrupts
.align 2
microblaze_disable_interrupts:
#Make space on stack for a temporary
addi r1, r1, -4
#Save register r12
swi r12, r1, 0
#Read the MSR register
mfs r12, rmsr
#Clear the interrupt enable bit
andi r12, r12, ~2
#Save the MSR register
mts rmsr, r12
#Load register r12
lwi r12, r1, 0
#Return
rtsd r15, 8
#Update stack in the delay slot
addi r1, r1, 4
.end microblaze_disable_interrupts

38
cpu/microblaze/enable_int.S
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/*
* (C) Copyright 2007 Michal Simek
*
* Michal SIMEK <monstrmonstr.eu>
*
* 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
*/
.text
.globl microblaze_enable_interrupts
.ent microblaze_enable_interrupts
.align 2
microblaze_enable_interrupts:
addi r1, r1, -4
swi r12, r1, 0
mfs r12, rmsr
ori r12, r12, 2
mts rmsr, r12
lwi r12, r1, 0
rtsd r15, 8
addi r1, r1, 4
.end microblaze_enable_interrupts

68
cpu/microblaze/exception.c
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/*
* (C) Copyright 2007 Michal Simek
*
* Michal SIMEK <monstr@monstr.eu>
*
* 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>
void _hw_exception_handler (void)
{
int address = 0;
int state = 0;
/* loading address of exception EAR */
__asm__ __volatile ("mfs %0,rear"::"r" (address):"memory");
/* loading excetpion state register ESR */
__asm__ __volatile ("mfs %0,resr"::"r" (state):"memory");
printf ("Hardware exception at 0x%x address\n", address);
switch (state & 0x1f) { /* mask on exception cause */
case 0x1:
puts ("Unaligned data access exception\n");
break;
case 0x2:
puts ("Illegal op-code exception\n");
break;
case 0x3:
puts ("Instruction bus error exception\n");
break;
case 0x4:
puts ("Data bus error exception\n");
break;
case 0x5:
puts ("Divide by zero exception\n");
break;
default:
puts ("Undefined cause\n");
break;
}
printf ("Unaligned %sword access\n", ((state & 0x800) ? "" : "half"));
printf ("Unaligned %s access\n", ((state & 0x400) ? "store" : "load"));
printf ("Register R%x\n", (state & 0x3E) >> 5);
hang ();
}
#ifdef CFG_USR_EXCEP
void _exception_handler (void)
{
puts ("User vector_exception\n");
hang ();
}
#endif

69
cpu/microblaze/icache.S
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/*
* (C) Copyright 2007 Michal Simek
*
* Michal SIMEK <monstr@monstr.eu>
*
* 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
*/
.text
.globl icache_enable
.ent icache_enable
.align 2
icache_enable:
/* Make space on stack for a temporary */
addi r1, r1, -4
/* Save register r12 */
swi r12, r1, 0
/* Read the MSR register */
mfs r12, rmsr
/* Set the instruction enable bit */
ori r12, r12, 0x20
/* Save the MSR register */
mts rmsr, r12
/* Load register r12 */
lwi r12, r1, 0
/* Return */
rtsd r15, 8
/* Update stack in the delay slot */
addi r1, r1, 4
.end icache_enable
.text
.globl icache_disable
.ent icache_disable
.align 2
icache_disable:
/* Make space on stack for a temporary */
addi r1, r1, -4
/* Save register r12 */
swi r12, r1, 0
/* Read the MSR register */
mfs r12, rmsr
/* Clear the instruction enable bit */
andi r12, r12, ~0x20
/* Save the MSR register */
mts rmsr, r12
/* Load register r12 */
lwi r12, r1, 0
/* Return */
rtsd r15, 8
/* Update stack in the delay slot */
addi r1, r1, 4
.end icache_disable

165
cpu/microblaze/irq.S
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/*
* (C) Copyright 2007 Michal Simek
*
* Michal SIMEK <monstr@monstr.eu>
*
* 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 <config.h>
.text
.global _interrupt_handler
_interrupt_handler:
addi r1, r1, -4
swi r2, r1, 0
addi r1, r1, -4
swi r3, r1, 0
addi r1, r1, -4
swi r4, r1, 0
addi r1, r1, -4
swi r5, r1, 0
addi r1, r1, -4
swi r6, r1, 0
addi r1, r1, -4
swi r7, r1, 0
addi r1, r1, -4
swi r8, r1, 0
addi r1, r1, -4
swi r9, r1, 0
addi r1, r1, -4
swi r10, r1, 0
addi r1, r1, -4
swi r11, r1, 0
addi r1, r1, -4
swi r12, r1, 0
addi r1, r1, -4
swi r13, r1, 0
addi r1, r1, -4
swi r14, r1, 0
addi r1, r1, -4
swi r15, r1, 0
addi r1, r1, -4
swi r16, r1, 0
addi r1, r1, -4
swi r17, r1, 0
addi r1, r1, -4
swi r18, r1, 0
addi r1, r1, -4
swi r19, r1, 0
addi r1, r1, -4
swi r20, r1, 0
addi r1, r1, -4
swi r21, r1, 0
addi r1, r1, -4
swi r22, r1, 0
addi r1, r1, -4
swi r23, r1, 0
addi r1, r1, -4
swi r24, r1, 0
addi r1, r1, -4
swi r25, r1, 0
addi r1, r1, -4
swi r26, r1, 0
addi r1, r1, -4
swi r27, r1, 0
addi r1, r1, -4
swi r28, r1, 0
addi r1, r1, -4
swi r29, r1, 0
addi r1, r1, -4
swi r30, r1, 0
addi r1, r1, -4
swi r31, r1, 0
brlid r15, interrupt_handler
nop
nop
lwi r31, r1, 0
addi r1, r1, 4
lwi r30, r1, 0
addi r1, r1, 4
lwi r29, r1, 0
addi r1, r1, 4
lwi r28, r1, 0
addi r1, r1, 4
lwi r27, r1, 0
addi r1, r1, 4
lwi r26, r1, 0
addi r1, r1, 4
lwi r25, r1, 0
addi r1, r1, 4
lwi r24, r1, 0
addi r1, r1, 4
lwi r23, r1, 0
addi r1, r1, 4
lwi r22, r1, 0
addi r1, r1, 4
lwi r21, r1, 0
addi r1, r1, 4
lwi r20, r1, 0
addi r1, r1, 4
lwi r19, r1, 0
addi r1, r1, 4
lwi r18, r1, 0
addi r1, r1, 4
lwi r17, r1, 0
addi r1, r1, 4
lwi r16, r1, 0
addi r1, r1, 4
lwi r15, r1, 0
addi r1, r1, 4
lwi r14, r1, 0
addi r1, r1, 4
lwi r13, r1, 0
addi r1, r1, 4
lwi r12, r1, 0
addi r1, r1, 4
lwi r11, r1, 0
addi r1, r1, 4
lwi r10, r1, 0
addi r1, r1, 4
lwi r9, r1, 0
addi r1, r1, 4
lwi r8, r1, 0
addi r1, r1, 4
lwi r7, r1, 0
addi r1, r1, 4
lwi r6, r1, 0
addi r1, r1, 4
lwi r5, r1, 0
addi r1, r1, 4
lwi r4, r1, 0
addi r1, r1, 4
lwi r3, r1, 0
addi r1, r1, 4
lwi r2, r1, 0
addi r1, r1, 4
/* enable_interrupt */
addi r1, r1, -4
swi r12, r1, 0
mfs r12, rmsr
ori r12, r12, 2
mts rmsr, r12
lwi r12, r1, 0
addi r1, r1, 4
nop
bra r14
nop
nop
.size _interrupt_handler,.-_interrupt_handler

68
cpu/microblaze/timer.c
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/*
* (C) Copyright 2007 Michal Simek
*
* Michal SIMEK <monstr@monstr.eu>
*
* 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/microblaze_timer.h>
volatile int timestamp = 0;
void reset_timer (void)
{
timestamp = 0;
}
ulong get_timer (ulong base)
{
return (timestamp - base);
}
void set_timer (ulong t)
{
timestamp = t;
}
#ifdef CFG_INTC_0
#ifdef CFG_TIMER_0
extern void install_interrupt_handler (int irq, interrupt_handler_t * hdlr,
void *arg);
microblaze_timer_t *tmr = (microblaze_timer_t *) (CFG_TIMER_0_ADDR);
void timer_isr (void *arg)
{
timestamp++;
tmr->control = tmr->control | TIMER_INTERRUPT;
}
void timer_init (void)
{
tmr->loadreg = CFG_TIMER_0_PRELOAD;
tmr->control = TIMER_INTERRUPT | TIMER_RESET;
tmr->control =
TIMER_ENABLE | TIMER_ENABLE_INTR | TIMER_RELOAD | TIMER_DOWN_COUNT;
reset_timer ();
install_interrupt_handler (CFG_TIMER_0_IRQ, timer_isr, (void *)tmr);
}
#endif
#endif

41
include/asm-microblaze/microblaze_intc.h
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/*
* (C) Copyright 2007 Michal Simek
*
* Michal SIMEK <monstr@monstr.cz>
*
* 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
*/
typedef volatile struct microblaze_intc_t {
int isr; /* interrupt status register */
int ipr; /* interrupt pending register */
int ier; /* interrupt enable register */
int iar; /* interrupt acknowledge register */
int sie; /* set interrupt enable bits */
int cie; /* clear interrupt enable bits */
int ivr; /* interrupt vector register */
int mer; /* master enable register */
} microblaze_intc_t;
struct irq_action {
interrupt_handler_t *handler; /* pointer to interrupt rutine */
void *arg;
int count; /* number of interrupt */
};

42
include/asm-microblaze/microblaze_timer.h
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/*
* (C) Copyright 2007 Michal Simek
*
* Michal SIMEK <monstr@monstr.cz>
*
* 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
*/
#define TIMER_ENABLE_ALL 0x400 /* ENALL */
#define TIMER_PWM 0x200 /* PWMA0 */
#define TIMER_INTERRUPT 0x100 /* T0INT */
#define TIMER_ENABLE 0x080 /* ENT0 */
#define TIMER_ENABLE_INTR 0x040 /* ENIT0 */
#define TIMER_RESET 0x020 /* LOAD0 */
#define TIMER_RELOAD 0x010 /* ARHT0 */
#define TIMER_EXT_CAPTURE 0x008 /* CAPT0 */
#define TIMER_EXT_COMPARE 0x004 /* GENT0 */
#define TIMER_DOWN_COUNT 0x002 /* UDT0 */
#define TIMER_CAPTURE_MODE 0x001 /* MDT0 */
typedef volatile struct microblaze_timer_t {
int control; /* control/statuc register TCSR */
int loadreg; /* load register TLR */
int counter; /* timer/counter register */
} microblaze_timer_t;

221
include/configs/ml401.h
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/*
* (C) Copyright 2007 Czech Technical University.
*
* Michal SIMEK <monstr@seznam.cz>
*
* 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
*/
#ifndef __CONFIG_H
#define __CONFIG_H
#include "../board/xilinx/ml401/xparameters.h"
#define CONFIG_MICROBLAZE 1 /* MicroBlaze CPU */
#define CONFIG_ML401 1 /* ML401 Board */
/* uart */
#define CONFIG_SERIAL_BASE CONFIG_XILINX_UARTLITE_0_BASEADDR
#define CONFIG_BAUDRATE CONFIG_XILINX_UARTLITE_0_BAUDRATE
#define CFG_BAUDRATE_TABLE { CONFIG_BAUDRATE }
/* setting reset address */
#define CFG_RESET_ADDRESS TEXT_BASE
/* gpio */
#define CFG_GPIO_0 1
#define CFG_GPIO_0_ADDR CONFIG_XILINX_GPIO_0_BASEADDR
/* interrupt controller */
#define CFG_INTC_0 1
#define CFG_INTC_0_ADDR CONFIG_XILINX_INTC_0_BASEADDR
#define CFG_INTC_0_NUM CONFIG_XILINX_INTC_0_NUM_INTR_INPUTS
/* timer */
#define CFG_TIMER_0 1
#define CFG_TIMER_0_ADDR CONFIG_XILINX_TIMER_0_BASEADDR
#define CFG_TIMER_0_IRQ CONFIG_XILINX_TIMER_0_IRQ
#define FREQUENCE 66666666
#define CFG_TIMER_0_PRELOAD ( FREQUENCE/1000 )
/*
* memory layout - Example
* TEXT_BASE = 0x1200_0000;
* CFG_SRAM_BASE = 0x1000_0000;
* CFG_SRAM_SIZE = 0x0400_0000;
*
* CFG_GBL_DATA_OFFSET = 0x1000_0000 + 0x0400_0000 - 0x1000 = 0x13FF_F000
* CFG_MONITOR_BASE = 0x13FF_F000 - 0x40000 = 0x13FB_F000
*
* 0x1000_0000 CFG_SDRAM_BASE
* FREE
* 0x1200_0000 TEXT_BASE
* U-BOOT code
* 0x1202_0000
* FREE
*
* STACK
* 0x11FB_F000 CFG_MONITOR_BASE
* MONITOR_CODE
* 0x13FF_F000 CFG_GBL_DATA_OFFSET
* GLOBAL_DATA
* 0x1400_0000 CFG_SDRAM_BASE + CFG_SDRAM_SIZE
*/
/* ddr sdram - main memory */
#define CFG_SDRAM_BASE CONFIG_XILINX_ERAM_START
#define CFG_SDRAM_SIZE CONFIG_XILINX_ERAM_SIZE
#define CFG_MEMTEST_START CFG_SDRAM_BASE
#define CFG_MEMTEST_END (CFG_SDRAM_BASE + 0x1000)
/* global pointer */
#define CFG_GBL_DATA_SIZE 0x1000 /* size of global data */
#define CFG_GBL_DATA_OFFSET (CFG_SDRAM_BASE + CFG_SDRAM_SIZE - CFG_GBL_DATA_SIZE) /* start of global data */
/* monitor code */
#define SIZE 0x40000
#define CFG_MONITOR_LEN SIZE
#define CFG_MONITOR_BASE (CFG_GBL_DATA_OFFSET - CFG_MONITOR_LEN)
#define CFG_MALLOC_LEN SIZE
/* stack */
#define CFG_INIT_SP_OFFSET CFG_MONITOR_BASE
/*#define RAMENV */
#define FLASH
#ifdef FLASH
#define CFG_FLASH_BASE CONFIG_XILINX_FLASH_START
#define CFG_FLASH_SIZE CONFIG_XILINX_FLASH_SIZE
#define CFG_FLASH_CFI 1
#define CFG_FLASH_CFI_DRIVER 1
#define CFG_FLASH_EMPTY_INFO 1 /* ?empty sector */
#define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
#define CFG_MAX_FLASH_SECT 128 /* max number of sectors on one chip */
#ifdef RAMENV
#define CFG_ENV_IS_NOWHERE 1
#define CFG_ENV_SIZE 0x1000
#define CFG_ENV_ADDR (CFG_MONITOR_BASE - CFG_ENV_SIZE)
#else /* !RAMENV */
#define CFG_ENV_IS_IN_FLASH 1
#define CFG_ENV_ADDR 0x40000
#define CFG_ENV_SECT_SIZE 0x40000 /* 256K(one sector) for env */
#define CFG_ENV_SIZE 0x2000
#endif /* !RAMBOOT */
#else /* !FLASH */
/* ENV in RAM */
#define CFG_NO_FLASH 1
#define CFG_ENV_IS_NOWHERE 1
#define CFG_ENV_SIZE 0x1000
#define CFG_ENV_ADDR (CFG_MONITOR_BASE - CFG_ENV_SIZE)
#endif /* !FLASH */
#ifdef FLASH
#ifdef RAMENV
#define CONFIG_COMMANDS (CONFIG__CMD_DFL |\
CFG_CMD_MEMORY |\
CFG_CMD_MISC |\
CFG_CMD_AUTOSCRIPT |\
CFG_CMD_IRQ |\
CFG_CMD_ASKENV |\
CFG_CMD_BDI |\
CFG_CMD_RUN |\
CFG_CMD_LOADS |\
CFG_CMD_LOADB |\
CFG_CMD_IMI |\
CFG_CMD_NET |\
CFG_CMD_CACHE |\
CFG_CMD_IMLS |\
CFG_CMD_FLASH |\
CFG_CMD_PING \
)
#else /* !RAMENV */
#define CONFIG_COMMANDS (CONFIG__CMD_DFL |\
CFG_CMD_MEMORY |\
CFG_CMD_MISC |\
CFG_CMD_AUTOSCRIPT |\
CFG_CMD_IRQ |\
CFG_CMD_ASKENV |\
CFG_CMD_BDI |\
CFG_CMD_RUN |\
CFG_CMD_LOADS |\
CFG_CMD_LOADB |\
CFG_CMD_IMI |\
CFG_CMD_NET |\
CFG_CMD_CACHE |\
CFG_CMD_IMLS |\
CFG_CMD_FLASH |\
CFG_CMD_PING |\
CFG_CMD_ENV |\
CFG_CMD_SAVES \
)
#endif
#else /* !FLASH */
#define CONFIG_COMMANDS (CONFIG__CMD_DFL |\
CFG_CMD_MEMORY |\
CFG_CMD_MISC |\
CFG_CMD_AUTOSCRIPT |\
CFG_CMD_IRQ |\
CFG_CMD_ASKENV |\
CFG_CMD_BDI |\
CFG_CMD_RUN |\
CFG_CMD_LOADS |\
CFG_CMD_LOADB |\
CFG_CMD_IMI |\
CFG_CMD_NET |\
CFG_CMD_CACHE |\
CFG_CMD_PING \
)
#endif /* !FLASH */
/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
#include <cmd_confdefs.h>
/* Miscellaneous configurable options */
#define CFG_PROMPT "U-Boot-mONStR> "
#define CFG_CBSIZE 512 /* size of console buffer */
#define CFG_PBSIZE (CFG_CBSIZE + sizeof(CFG_PROMPT) + 16) /* print buffer size */
#define CFG_MAXARGS 15 /* max number of command args */
#define CFG_LONGHELP
#define CFG_LOAD_ADDR 0x12000000 /* default load address */
#define CONFIG_BOOTDELAY 30
#define CONFIG_BOOTARGS "root=romfs"
#define CONFIG_HOSTNAME "ml401"
#define CONFIG_BOOTCOMMAND "base 0;tftp 11000000 image.img;bootm"
#define CONFIG_IPADDR 192.168.0.3
#define CONFIG_SERVERIP 192.168.0.5
#define CONFIG_GATEWAYIP 192.168.0.1
#define CONFIG_ETHADDR 00:E0:0C:00:00:FD
/* architecture dependent code */
#define CFG_USR_EXCEP /* user exception */
#define CFG_HZ 1000
/* system ace */
/*#define CONFIG_SYSTEMACE
#define DEBUG_SYSTEMACE
#define CFG_SYSTEMACE_BASE 0xCF000000
#define CFG_SYSTEMACE_WIDTH 8
#define CONFIG_DOS_PARTITION
*/
#endif /* __CONFIG_H */
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