* Re: [ECOS] ROMRAM mode for Samsung SNDS redboot?
2003-11-18 1:24 [ECOS] ROMRAM mode for Samsung SNDS redboot? RandyLin
@ 2003-11-18 9:31 ` Roland Caßebohm
0 siblings, 0 replies; 3+ messages in thread
From: Roland Caßebohm @ 2003-11-18 9:31 UTC (permalink / raw)
To: RandyLin, ecos-discuss
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On Mittwoch, 19. November 2003 02:22, RandyLin@mxic.com.tw wrote:
> I have redboot rom mode on SNDS, but I can't find the
> mlt_arm_snds_romram.ldi or .h
> No one done this before?
> Can anyone give me suggestion, or lead me to some document?
I have made ROMRAM version for our new platform "ARM Industrial Module"
which is based on the snds hal and which we will contribute back soon.
Maybe you could make the same for the snds platform, but the problem is
the RAM version of snds is starting at 0x20000 and there is not enough
place for RedBoot (at least with network) executed from RAM. That
means the RAM ldi file has to be changed too.
This is the difference of the ramrom ldi file to the ram ldi file:
diff -u5 -p -N mlt_arm_aim711_romram.ldi
../../../../snds/current/include/pkgconf/mlt_arm_snds_ram.ldi
--- mlt_arm_aim711_romram.ldi Fri Oct 17 13:20:13 2003
+++ ../../../../snds/current/include/pkgconf/mlt_arm_snds_ram.ldi Mon
Sep 29 17:16:19 2003
@@ -4,18 +4,18 @@
#include <cyg/infra/cyg_type.inc>
MEMORY
{
- ram : ORIGIN = 0x000000, LENGTH = 0x00800000
+ ram : ORIGIN = 0x000000, LENGTH = 0x01000000
}
SECTIONS
{
SECTIONS_BEGIN
- SECTION_fixed_vectors (ram, 0x20, LMA_EQ_VMA)
- SECTION_rom_vectors (ram, 0x1000, LMA_EQ_VMA)
+ SECTION_fixed_vectors (ram, 0x200, LMA_EQ_VMA)
+ SECTION_rom_vectors (ram, 0x00020000, LMA_EQ_VMA)
SECTION_text (ram, ALIGN (0x4), LMA_EQ_VMA)
SECTION_fini (ram, ALIGN (0x4), LMA_EQ_VMA)
SECTION_rodata (ram, ALIGN (0x4), LMA_EQ_VMA)
SECTION_rodata1 (ram, ALIGN (0x4), LMA_EQ_VMA)
SECTION_fixup (ram, ALIGN (0x4), LMA_EQ_VMA)
Additionally I have attached the hal_platform_setup.h file of the AIM
hal, which includes the relocating of the text segment. I haven't made
a diff, because it would be confusing to read because I have changed
a big part of it from being a "#define" macro to an assembler macro,
so it is the same code but would be shown as difference because of the
";\" at the end of the line.
[-- Attachment #2: hal_platform_setup.h --]
[-- Type: text/x-chdr, Size: 11800 bytes --]
#ifndef CYGONCE_HAL_PLATFORM_SETUP_H
#define CYGONCE_HAL_PLATFORM_SETUP_H
//==========================================================================
//
// hal_platform_setup.h
//
//
//
//==========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos 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 or (at your option) any later version.
//
// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): gthomas
// Contributors: gthomas, jskov, rcassebohm
// Grant Edwards <grante@visi.com>
// Date: 2001-07-31
// Purpose:
// Description:
//
//####DESCRIPTIONEND####
//
//========================================================================*/
#include <cyg/hal/plf_io.h>
// FIXME: Maybe this could be in plf_io.h or depend on mlt header?
#define ROM0_LA_START 0x02000000
#define ROM0_LA_END 0x02100000
#define DRAM_LA_START 0x00000000
#define DRAM_LA_END 0x00800000
#define EXT0_LA_START 0x03fd0000
#define EXT0_LA_END 0x03fd4000
#define EXT1_LA_START 0x03fd4000
#define EXT1_LA_END 0x03fd8000
#define EXT2_LA_START 0x03fd8000
#define EXT2_LA_END 0x03fdc000
#define EXT3_LA_START 0x03fdc000
#define EXT3_LA_END 0x03fc0000
#define CYGHWR_LED_MACRO \
ldr r0,=KS32C_IOPDATA ;\
ldr r1,[r0] ;\
add r1,r1,#(~0x7) ;\
orr r1,r1,#((0x7 & (~(\x)))) ;\
str r1,[r0] ;\
/* ldr r1,=0x80000 ;\
1: sub r1,r1,#1 ;\
cmp r1,#0 ;\
bne 1b */ ;
// FIXME: Is that good?
#if CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE==4096
// Override default to a more sensible value
#undef CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE
#define CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE 2048
#endif
// Use relative branch since we are going to switch the address space
// around.
#define CYGSEM_HAL_ROM_RESET_USES_JUMP
.macro PLATFORM_RELOCATE
ldr r1,=KS32C_IOPMOD
ldr r2,=0x07 /* set led display to output */
str r2,[r1,#0x00]
LED 0x0
/* Check that it worked, otherwise try Sync DRAM setup */
ldr r1,=0x00000000
str r1,[r1]
ldr r2,[r1]
cmp r2,r1
beq 99f
/* Sync DRAM mode */
LED 0x1
ldr r3, =0xe7ffff90 /* sdram c+wb disabled, regs @ 0x03ff0000 */
ldr r0, =KS32C_SYSCFG
str r3,[r0]
1: mov r1,pc /* actual address */
sub r1,r1,#8 /* + 8 */
ldr r0,=1b /* address off 1: after remap */
sub r1,r1,r0
ldr r0,=40f
add r0,r0,r1
#ifdef CYG_HAL_STARTUP_ROMRAM
ldr lr,=4f
add lr,lr,r1
ldr r1,=ROM0_LA_START
add lr,lr,r1
#else
ldr lr,=99f
#endif
ldmia r0,{r1-r12}
ldr r0,=KS32C_EXTDBWTH
stmia r0,{r1-r12}
mov pc,lr
#ifdef CYG_HAL_STARTUP_ROMRAM
4:
/* Relocate text segment */
ldr r2,=__exception_handlers
ldr r3,=ROM0_LA_START
cmp r2,r3
beq 6f
ldr r4,=__rom_data_end
5:
ldr r0,[r3],#4
str r0,[r2],#4
cmp r2,r4
bne 5b
6:
ldr lr,=99f
mov pc,lr
nop
nop
nop
#endif
/* The below are set with a store-multiple instruction */
/* Sync DRAM setup */
/* Flash is 8 bit, DRAM is 32 bit and EXTIO is 8 bit */
/* .long KS32C_EXTDBWTH */
40: .long ( (KS32C_EXTDBWTH_8BIT<<KS32C_EXTDBWTH_DSR0_shift) \
|(KS32C_EXTDBWTH_32BIT<<KS32C_EXTDBWTH_DSD0_shift) \
|(KS32C_EXTDBWTH_8BIT<<KS32C_EXTDBWTH_DSX0_shift) \
|(KS32C_EXTDBWTH_8BIT<<KS32C_EXTDBWTH_DSX2_shift) )
/* Flash at 0x02000000-0x02100000, 5 cycles, 7 cycles */
/* .long KS32C_ROMCON0 */
.long ( (KS32C_ROMCON_PMC_ROM) \
|(KS32C_ROMCON_TPA_5C) \
|(KS32C_ROMCON_TACC_7C) \
|((0x02000000 >> 16) << KS32C_ROMCON_BASE_shift) \
|((0x02200000 >> 16) << KS32C_ROMCON_NEXT_shift))
/* .long KS32C_ROMCON1 */
.long ( (KS32C_ROMCON_PMC_ROM) \
|(KS32C_ROMCON_TPA_5C) \
|(KS32C_ROMCON_TACC_5C) \
|((0x00000000 >> 16) << KS32C_ROMCON_BASE_shift) \
|((0x00000000 >> 16) << KS32C_ROMCON_NEXT_shift))
/* .long KS32C_ROMCON2 */
.long ( (KS32C_ROMCON_PMC_ROM) \
|(KS32C_ROMCON_TPA_5C) \
|(KS32C_ROMCON_TACC_5C) \
|((0x00000000 >> 16) << KS32C_ROMCON_BASE_shift) \
|((0x00000000 >> 16) << KS32C_ROMCON_NEXT_shift))
/* .long KS32C_ROMCON3 */
.long ( (KS32C_ROMCON_PMC_ROM) \
|(KS32C_ROMCON_TPA_5C) \
|(KS32C_ROMCON_TACC_5C) \
|((0x00000000 >> 16) << KS32C_ROMCON_BASE_shift) \
|((0x00000000 >> 16) << KS32C_ROMCON_NEXT_shift))
/* .long KS32C_ROMCON4 */
.long ( (KS32C_ROMCON_PMC_ROM) \
|(KS32C_ROMCON_TPA_5C) \
|(KS32C_ROMCON_TACC_5C) \
|((0x00000000 >> 16) << KS32C_ROMCON_BASE_shift) \
|((0x00000000 >> 16) << KS32C_ROMCON_NEXT_shift))
/* .long KS32C_ROMCON5 */
.long ( (KS32C_ROMCON_PMC_ROM) \
|(KS32C_ROMCON_TPA_5C) \
|(KS32C_ROMCON_TACC_5C) \
|((0x00000000 >> 16) << KS32C_ROMCON_BASE_shift) \
|((0x00000000 >> 16) << KS32C_ROMCON_NEXT_shift))
/* .long KS32C_DRAMCON0 */
.long ( (KS32C_DRAMCON_RESERVED) \
|(KS32C_DRAMCON_CAN_8) \
|(KS32C_DRAMCON_TRP_4C) \
|(KS32C_DRAMCON_TRC_2C) \
|((0x00000000 >> 16) << KS32C_DRAMCON_BASE_shift) \
|((0x00800000 >> 16) << KS32C_DRAMCON_NEXT_shift))
/* .long KS32C_DRAMCON1 */
.long ( (KS32C_DRAMCON_RESERVED) \
|(KS32C_DRAMCON_CAN_8) \
|(KS32C_DRAMCON_TRP_2C) \
|(KS32C_DRAMCON_TRC_2C) \
|((0x00000000 >> 16) << KS32C_DRAMCON_BASE_shift) \
|((0x00000000 >> 16) << KS32C_DRAMCON_NEXT_shift))
/* .long KS32C_DRAMCON2 */
.long ( (KS32C_DRAMCON_RESERVED) \
|(KS32C_DRAMCON_CAN_8) \
|(KS32C_DRAMCON_TRP_2C) \
|(KS32C_DRAMCON_TRC_2C) \
|((0x00000000 >> 16) << KS32C_DRAMCON_BASE_shift) \
|((0x00000000 >> 16) << KS32C_DRAMCON_NEXT_shift))
/* .long KS32C_DRAMCON3 */
.long ( (KS32C_DRAMCON_RESERVED) \
|(KS32C_DRAMCON_CAN_8) \
|(KS32C_DRAMCON_TRP_2C) \
|(KS32C_DRAMCON_TRC_2C) \
|((0x00000000 >> 16) << KS32C_DRAMCON_BASE_shift) \
|((0x00000000 >> 16) << KS32C_DRAMCON_NEXT_shift))
/* .long KS32C_REFEXTCON */
.long (((2048+1-(8*CYGNUM_HAL_CPUCLOCK/1000000)) << KS32C_REFEXTCON_RCV_shift) \
|(KS32C_REFEXTCON_TRC_4C) \
|(KS32C_REFEXTCON_REN) \
|(KS32C_REFEXTCON_VSF) \
|(EXT0_LA_START >> 16) )
50:
.long 0x07113001 /* ROM half-word, RAM word, EXT-IO */
.long 0x21080060 /* ROM 32 - 33 MByte */
.long 0
.long 0
.long 0
.long 0
.long 0
.long 0x0800038e /* RAM 0 - 8 MByte */
.long 0
.long 0
.long 0
.long 0xc01583fd /* Reactivate external Bus */
99: LED 0x2
ldr r3,=0x00000000
str r3,[r3]
ldr r4,[r3]
cmp r4,r3
beq 15f
11: LED 0x3
b 11b
15: LED 0x4
.endm
#if defined(CYG_HAL_STARTUP_ROM) || defined(CYG_HAL_STARTUP_ROMRAM)
#define PLATFORM_SETUP1 \
PLATFORM_RELOCATE
#else
#define PLATFORM_SETUP1
#endif
//-----------------------------------------------------------------------------
// end of hal_platform_setup.h
#endif // CYGONCE_HAL_PLATFORM_SETUP_H
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