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Initial commit for the "Lyre prototype 1" port by Jorge Pinto from FS#10045.

Browse source 
Bootloader builds, normal does not.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20574 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Daniel Stenberg 2009-03-30 12:20:47 +00:00
parent ddc554f62b
commit 8983fcb5f2
24 changed files with 2029 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

81
firmware/target/arm/at91sam/boot.lds Normal file
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OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
OUTPUT_ARCH(arm)
ENTRY(reset_handler)
STARTUP(target/arm/at91sam/lyre_proto1/crt0.o)
#define DRAMSIZE (MEMORYSIZE * 0x100000)
#define DRAMORIG 0x20000000
#define IRAM0ORIG 0x200000
#define IRAM0SIZE 4K
#define IRAM1ORIG 0x300000
#define IRAM1SIZE 4K
#define STACKSIZE 2k
MEMORY
{
DRAM : ORIGIN = DRAMORIG, LENGTH = DRAMSIZE
IRAM0 : ORIGIN = IRAM0ORIG, LENGTH = IRAM0SIZE
}
SECTIONS
{
/* We will put Rockbox bootloader at the last 1MByte of the SDRAM. */
/* Example of a section:
* .section VMA(Virtual Memory Address) : LMA(Load Memory Address).
* VMA and LMA addresses can be verified by doing:
* "arm-elf-objdump -h bootloader.elf". */
.vectors 0 : AT (DRAMORIG + DRAMSIZE - 1M)
{
_start_vectors_section = .;
*(.vectors)
*(.glue_7)
*(.glue_7t)
. = ALIGN(4);
_end_vectors_section = .;
}
.text (DRAMORIG + DRAMSIZE -1M + SIZEOF(.vectors)) : \
AT (DRAMORIG + DRAMSIZE -1M + SIZEOF(.vectors))
{
*(.text)
*(.text*)
*(.icode)
*(.icode*)
*(.rodata)
*(.rodata*)
. = ALIGN(4);
}
/* Initialized variables are placed on SDRAM, right after .vectors section. */
/* Data section: VMA is the same as the LMA, right after the end of .vector */
.data . :
{
*(.data)
*(.data*)
. = ALIGN(4);
_end_data_section = .;
}
/* Uninitialized variables are placed at SDRAM, right after .text section. */
.bss (NOLOAD) :
{
_start_bss_section = .;
*(.bss) /* Bss section contains all uninitialized data generated by the compiler. */
*(.bss*)
*(COMMON)
. = ALIGN(4);
_end_bss_section = .;
}
/* Stack is placed at SDRAM, right after .bss section. */
.stack . :
{
*(.stack)
stackbegin = .;
. += STACKSIZE;
stackend = .;
}
}

31
firmware/target/arm/at91sam/lyre_proto1/adc-lyre_proto1.c Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
*
* Copyright (C) 2009 by Jorge Pinto
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
void adc_init(void)
{
}
/* Called to get the recent ADC reading */
inline unsigned short adc_read(int channel)
{
(void)channel;
return 0;
}

28
firmware/target/arm/at91sam/lyre_proto1/adc-target.h Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
*
* Copyright (C) 2009 by Jorge Pinto
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef _ADC_TARGET_H_
#define _ADC_TARGET_H_
void adc_init(void);
inline unsigned short adc_read(int channel);
#endif

45
firmware/target/arm/at91sam/lyre_proto1/backlight-lyre_proto1.c Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
*
* Copyright (C) 2009 by Jorge Pinto
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
void _backlight_set_brightness(int brightness)
{
(void)brightness;
}
void _backlight_on(void)
{
}
void _backlight_off(void)
{
}
void _buttonlight_on(void)
{
}
void _buttonlight_off(void)
{
}

26
firmware/target/arm/at91sam/lyre_proto1/backlight-target.h Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
*
* Copyright (C) 2009 by Jorge Pinto
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef BACKLIGHT_TARGET_H
#define BACKLIGHT_TARGET_H
#endif

99
firmware/target/arm/at91sam/lyre_proto1/button-lyre_proto1.c Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
*
* Copyright (C) 2009 by Jorge Pinto
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "at91sam9260.h"
#include "button.h"
#define BUTTON_01 AT91C_PIO_PB4
#define BUTTON_02 AT91C_PIO_PB5
#define BUTTON_03 AT91C_PIO_PB27
#define BUTTON_04 AT91C_PIO_PB26
#define BUTTON_05 AT91C_PIO_PB25
#define BUTTON_06 AT91C_PIO_PB24
#define BUTTON_07 AT91C_PIO_PB22
#define BUTTON_08 AT91C_PIO_PB23
void button_init_device(void)
{
/* Enable the periph clock for the PIO controller */
/* This is mandatory when PIO are configured as input */
AT91C_PMC_PCER = (1 << AT91C_ID_PIOB);
/* Set the PIO line in input */
AT91C_PIOB_ODR = (BUTTON_01 |
BUTTON_02 |
BUTTON_03 |
BUTTON_04 |
BUTTON_05 |
BUTTON_06 |
BUTTON_07 |
BUTTON_08);
/* Set the PIO controller in PIO mode instead of peripheral mode */
AT91C_PIOB_PER = (BUTTON_01 |
BUTTON_02 |
BUTTON_03 |
BUTTON_04 |
BUTTON_05 |
BUTTON_06 |
BUTTON_07 |
BUTTON_08);
}
bool button_hold(void)
{
return (0);
}
/*
* Get button pressed from hardware
*/
int button_read_device(void)
{
uint32_t buttons = AT91C_PIOB_PDSR;
uint32_t ret = 0;
if ((buttons & BUTTON_01) == 0)
ret |= BUTTON_UP;
if ((buttons & BUTTON_02) == 0)
ret |= BUTTON_RIGHT;
if ((buttons & BUTTON_03) == 0)
ret |= BUTTON_PLAY;
if ((buttons & BUTTON_04) == 0)
ret |= BUTTON_SELECT;
if ((buttons & BUTTON_05) == 0)
ret |= BUTTON_LEFT;
if ((buttons & BUTTON_06) == 0)
ret |= BUTTON_DOWN;
if ((buttons & BUTTON_07) == 0)
ret |= BUTTON_STOP;
if ((buttons & BUTTON_08) == 0)
ret |= BUTTON_MENU;
return ret;
}

48
firmware/target/arm/at91sam/lyre_proto1/button-target.h Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
*
* Copyright (C) 2009 by Jorge Pinto
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef _BUTTON_TARGET_H_
#define _BUTTON_TARGET_H_
#include <stdbool.h>
#include "config.h"
#define BUTTON_SELECT 0x00000001
#define BUTTON_MENU 0x00000002
#define BUTTON_PLAY 0x00000004
#define BUTTON_STOP 0x00000008
#define BUTTON_LEFT 0x00000010
#define BUTTON_RIGHT 0x00000020
#define BUTTON_UP 0x00000040
#define BUTTON_DOWN 0x00000080
#define BUTTON_MAIN (BUTTON_UP|BUTTON_DOWN|BUTTON_RIGHT|BUTTON_LEFT \
|BUTTON_SELECT|BUTTON_MENU|BUTTON_PLAY \
|BUTTON_STOP)
bool button_hold(void);
void button_init_device(void);
int button_read_device(void);
/* No Remote control */
#define BUTTON_REMOTE 0
#endif /* _BUTTON_TARGET_H_ */

274
firmware/target/arm/at91sam/lyre_proto1/crt0.S Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
*
* Copyright (C) 2009 by Jorge Pinto
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "at91sam9260.h"
#define DRAMORIG AT91C_EBI_SDRAM_32BIT
#define DRAMSIZE (MEMORYSIZE * 0x100000)
#define IRAM0ORIG AT91C_IRAM_1
#define IRAM0SIZE AT91C_IRAM_1_SIZE
#define TOP_OF_MEMORY (IRAM0ORIG + IRAM0SIZE)
#define ABT_STACK_SIZE 8*3*4
#define IRQ_STACK_SIZE 8*3*4
#define ARM_MODE_ABT 0x17
#define ARM_MODE_FIQ 0x11
#define ARM_MODE_IRQ 0x12
#define ARM_MODE_SVC 0x13
#define I_BIT 0x80
#define F_BIT 0x40
/* Application startup entry point */
.globl reset_handler
.align 4
.section .vectors
.arm
/* Exception vectors (should be a branch to be detected as a valid code
* by the rom) */
_exception_vectors:
reset_vector:
ldr pc, =reset_handler
undef_vector:
b undef_vector /* Undefined Instruction */
swi_vector:
b swi_vector /* Software Interrupt */
pabt_vector:
ldr pc, =pabt_handler /* Prefetch Abort */
dabt_vector:
ldr pc, =dabt_handler /* Data Abort */
rsvd_vector:
b rsvd_vector /* reserved */
irq_vector:
b irq_handler /* IRQ : read the AIC */
fiq_vector:
/*-----------------------------------------------------------------------------
*- Function : fiq_handler
*- Treatments : FIQ (Fast Interrupt) Interrupt Handler.
*- Called Functions :
*---------------------------------------------------------------------------*/
fiq_handler:
pabt_handler:
dabt_handler:
b fiq_handler
/*-----------------------------------------------------------------------------
*- Function : irq_handler
*- Treatments : IRQ Controller Interrupt Handler.
*- Called Functions : AIC_IVR[interrupt]
*---------------------------------------------------------------------------*/
irq_handler:
/*- Manage Exception Entry */
/*- Adjust and save LR_irq in IRQ stack - (LR - Link Register) */
sub lr, lr, #4
stmfd sp!, {lr}
/*- Save r0 and SPSR (Saved Program Status Register) in IRQ stack */
mrs r14, SPSR
stmfd sp!, {r0,r14}
/*- Write in the IVR (Interrupt Vector Register) to support Protect Mode */
/*- No effect in Normal Mode */
/*- De-assert the NIRQ and clear the source in Protect Mode */
ldr r14, =AT91C_BASE_AIC
ldr r0 , [r14, #AIC_IVR]
str r14, [r14, #AIC_IVR]
/*- Enable Interrupt and Switch in Supervisor Mode */
msr CPSR_c, #ARM_MODE_SVC
/*- Save scratch/used registers and LR in User Stack */
stmfd sp!, {r1-r3, r12, r14}
/*- Branch to the routine pointed by the AIC_IVR */
mov r14, pc
bx r0
/*- Restore scratch/used registers and LR from User Stack */
ldmia sp!, {r1-r3, r12, r14}
/*- Disable Interrupt and switch back in IRQ mode */
msr CPSR_c, #ARM_MODE_IRQ | I_BIT
/*- Mark the End of Interrupt on the AIC */
ldr r14, =AT91C_BASE_AIC
str r14, [r14, #AIC_EOICR]
/*- Restore SPSR_irq and r0 from IRQ stack */
ldmia sp!, {r0,r14}
msr SPSR_cxsf, r14
/*- Restore adjusted LR_irq from IRQ stack directly in the PC */
ldmia sp!, {pc}^
/*-----------------------------------------------------------------------------
*- Function : reset_handler
*- Treatments : Reset Interrupt Handler.
*- Called Functions : lowlevel_init
* main
*---------------------------------------------------------------------------*/
.section .text
reset_handler:
/*-----------------------------------------------------------------------------
*- Low level Init is performed in a C function: lowlevel_init
*- Init Stack Pointer to a valid memory area before calling lowlevel_init
*
* Put Stack Pointer on end of IRAM 1 and branches to lowlevel_init function.
*---------------------------------------------------------------------------*/
/*- Temporary stack in internal RAM for Low Level Init execution */
_low_level_init:
ldr r2, =_litteral_pool_lowlevel_init /* Load r2 with the address of
* _litteral_pool_lowlevel_init
*/
ldmia r2, {r0, r1} /* r0 = lowlevel_init and r1 = TOP_OF_MEMORY */
mov sp, r1 /* sp (Stack Pointer) = TOP_OF_MEMORY (end of IRAM 1) */
mov lr, pc /* lr (Link register) = pc (Program Counter) */
bx r0 /* Branch on C function (interworking) -- branch to
* lowlevel_init
*/
/*-----------------------------------------------------------------------------
*- Setup the stack for each mode
*
* Executes this code after returning from lowlevel_init fucntion.
* Configures Abort Mode Stack + Interrupt Mode Stack + Supervisor Mode Stack,
* reserves 3 blocks, one for each mode and they start at end of IRAM 1.
*---------------------------------------------------------------------------*/
_stack_init:
ldr r2, =_litteral_pool_stack_init
ldmia r2, {r0, r1, r2} /* r0 = TOP_OF_MEMORY (end of IRAM 1);
* r1 = ABT_STACK_SIZE;
* r2 = IRQ_STACK_SIZE
*/
/*- Set up Abort Mode and set ABT Mode Stack */
msr CPSR_c, #ARM_MODE_ABT | I_BIT | F_BIT /* Enter in Mode Abort
* and disable IRQ (Interrupt) and FIQ (Fast Interrupt)
*/
mov sp, r0 /* sp (ABT Mode Stack Pointer) = TOP_OF_MEMORY
* (end of IRAM 1)
*/
/* put r0 with value of the new address for next Stack */
sub r0, r0, r1 /* r0 = r0 - r1 --> r0 = (end of IRAM 1) -
* (ABT_STACK_SIZE)
*/
/*- Set up Interrupt Mode and set IRQ Mode Stack */
msr CPSR_c, #ARM_MODE_IRQ | I_BIT | F_BIT /* Enter in Mode Interrupt
* and disable IRQ (Interrupt) and FIQ (Fast Interrupt)
*/
mov sp, r0 /* sp (Interrupt Mode Stack Pointer) =
* TOP_OF_MEMORY (end of IRAM 1) - (ABT_STACK_SIZE)
*/
sub r0, r0, r2 /* Put on r0 the new address for next
* Stack (Supervisor Mode)
*/
/*- Enable interrupt & Set up Supervisor Mode and set Supervisor Mode Stack */
msr CPSR_c, #ARM_MODE_SVC | F_BIT
mov sp, r0
/*-----------------------------------------------------------------------------
*- Segments initialization
*---------------------------------------------------------------------------*/
/* Copy the vectors section code from the LMA address to the LVA address */
_init_vectors:
ldr r1, =_litteral_pool_vectors /* Load r1 with the address of
* _litteral_pool_vectors
*/
ldmia r1, {r2, r3, r4} /* r2 = DRAMORIG; r3 = _start_vectors_section;
* r4 = _end_vectors_section;
*/
1:
cmp r3, r4 /* Compare r3 with r4 (r3 - r4) */
ldrcc r5, [r2], #4 /* if (_start_vectors_section < _end_vectors_section)
* { r5 = [r2]; r2 = r2 + 4; }
*/
strcc r5, [r3], #4 /* if (_start_vectors_section < _end_vectors_section)
* { [r3] = r5; r3 = r3 + 4; }
*/
bcc 1b /* loop while (_start_vectors_section < _end_vectors_section) */
/* Clear the bss segment */
_init_bss:
ldr r2, =_litteral_pool_bss
ldmia r2, {r3, r4} /* r3 = _start_bss_section; r4 = _end_bss_section */
mov r2, #0 /* r2 = 0 */
1:
cmp r3, r4 /* Compare --> (_start_bss_section - _end_bss_section) */
strcc r2, [r3], #4 /* if (_start_bss_section < _end_bss_section) {
* [r3] = 0; r3 = r3 + 4; }
*/
bcc 1b /* loop while _start_bss_section < _end_bss_section */
/* Set up some stack and munge it with 0xdeadbeef */
ldr sp, =stackend
mov r3, sp
ldr r2, =stackbegin
ldr r4, =0xdeadbeef
stackmunge:
cmp r3, r2
strhi r4, [r2], #4
bhi stackmunge
/*-----------------------------------------------------------------------------
*- Branch to the main
*---------------------------------------------------------------------------*/
_branch_main:
ldr r0, =main
mov lr, pc
bx r0
/*-----------------------------------------------------------------------------
*- Litteral pools
*---------------------------------------------------------------------------*/
_litteral_pool_lowlevel_init:
.word lowlevel_init
.word TOP_OF_MEMORY /* Default SVC stack after power up */
_litteral_pool_stack_init:
.word TOP_OF_MEMORY /* Top of the stack */
.word ABT_STACK_SIZE /* ABT stack size */
.word IRQ_STACK_SIZE /* IRQ stack size */
_litteral_pool_bss:
.word _start_bss_section
.word _end_bss_section
_litteral_pool_vectors:
#if defined(BOOTLOADER)
.word (DRAMORIG + DRAMSIZE - 0x100000) /* LMA address of vectors are at
* end of DRAM minus 1MByte
*/
#else
.word DRAMORIG /* LMA address of vectors are at DRAMORIG */
#endif
.word _start_vectors_section
.word _end_vectors_section

34
firmware/target/arm/at91sam/lyre_proto1/debug-lyre_proto1.c Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
*
* Copyright (C) 2009 by Jorge Pinto
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "at91sam9260.h"
#include <stdbool.h>
#include "debug-target.h"
bool __dbg_ports(void)
{
return false;
}
bool __dbg_hw_info(void)
{
return false;
}

26
firmware/target/arm/at91sam/lyre_proto1/debug-target.h Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
*
* Copyright (C) 2009 by Jorge Pinto
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <stdbool.h>
bool __dbg_ports(void);
bool __dbg_hw_info(void);

78
firmware/target/arm/at91sam/lyre_proto1/kernel-lyre_proto1.c Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
*
* Copyright (C) 2009 by Jorge Pinto
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "system.h"
#include "kernel.h"
#include "timer.h"
#include "thread.h"
#include "at91sam9260.h"
/*-----------------------------------------------------------------------------
* Function Name : pitc_handler
* Object : Handler for PITC interrupt
*---------------------------------------------------------------------------*/
void pitc_handler(void)
{
unsigned long pivr = 0;
unsigned long pisr = 0;
/* Read the PISR */
pisr = AT91C_PITC_PISR & AT91C_PITC_PITS;
/* Read the PIVR. It acknowledges the IT */
pivr = AT91C_PITC_PIVR;
/* Run through the list of tick tasks */
call_tick_tasks();
}
void tick_start(unsigned int interval_in_ms)
{
volatile unsigned long pimr = 0;
/* Configure a resolution of 1 ms */
AT91C_PITC_PIMR = MCK_FREQ / (((16 * 1000) - 1) / interval_in_ms);
/* Enable interrupts */
/* Disable the interrupt on the interrupt controller */
AT91C_AIC_IDCR = (1 << AT91C_ID_SYS);
/* Save the interrupt handler routine pointer and the interrupt priority */
AT91C_AIC_SVR(AT91C_ID_SYS) = (unsigned long) pitc_handler;
/* Store the Source Mode Register */
AT91C_AIC_SMR(AT91C_ID_SYS) = AT91C_AIC_SRCTYPE_INT_LEVEL_SENSITIVE | \
AT91C_AIC_PRIOR_LOWEST;
/* Clear the interrupt on the interrupt controller */
AT91C_AIC_ICCR = (1 << AT91C_ID_SYS);
/* Enable the interrupt on the interrupt controller */
AT91C_AIC_IECR = (1 << AT91C_ID_SYS);
/* Enable the interrupt on the pit */
pimr = AT91C_PITC_PIMR;
AT91C_PITC_PIMR = pimr | AT91C_PITC_PITIEN;
/* Enable the pit */
pimr = AT91C_PITC_PIMR;
AT91C_PITC_PIMR = pimr | AT91C_PITC_PITEN;
}

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
*
* Copyright (C) 2009 by Jorge Pinto
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
/* Update the display.
This must be called after all other LCD functions that change the display */
void lcd_update(void)
{
}

24
firmware/target/arm/at91sam/lyre_proto1/lcd-target.h Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
*
* Copyright (C) 2009 by Jorge Pinto
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
void lcd_update_rect(int x, int y, int width, int height);

150
firmware/target/arm/at91sam/lyre_proto1/system-lyre_proto1.c Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
*
* Copyright (C) 2009 by Jorge Pinto
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
/* Include Standard files */
#include "at91sam9260.h"
#include "debug-target.h"
#include "config.h"
/*-----------------------------------------------------------------------------
* Function Name : default_spurious_handler
* Object : default handler for spurious interrupt
*---------------------------------------------------------------------------*/
void default_spurious_handler(void)
{
while (1);
}
/*-----------------------------------------------------------------------------
* Function Name : default_fiq_handler
* Object : default handler for fast interrupt
*---------------------------------------------------------------------------*/
void default_fiq_handler(void)
{
while (1);
}
/*-----------------------------------------------------------------------------
* Function Name : default_irq_handler
* Object : default handler for irq
*---------------------------------------------------------------------------*/
void default_irq_handler(void)
{
#if defined(BOOTLOADER)
while (1);
#endif
}
/*-----------------------------------------------------------------------------
* Function Name : lowlevel_init
* Object : This function performs very low level HW initialization
* this function can use a Stack, depending the compilation
* optimization mode
*---------------------------------------------------------------------------*/
void lowlevel_init(void)
{
unsigned char i = 0;
/* void default_fiq_handler(void)
* Init PMC Step 1. Enable Main Oscillator
* Main Oscillator startup time is board specific:
* Main Oscillator Startup Time worst case (3MHz) corresponds to 15ms
* (0x40 for AT91C_CKGR_OSCOUNT field)
*/
AT91C_PMC_MOR = (((AT91C_CKGR_OSCOUNT & (0x40 << 8)) | AT91C_CKGR_MOSCEN));
/* Wait Main Oscillator stabilization */
while (!(AT91C_PMC_SR & AT91C_PMC_MOSCS));
/* Init PMC Step 2.
* Set PLLA to 198,608MHz
* PLL Startup time depends on PLL RC filter: worst case is choosen.
*
* Crystal frequency = 18.432MHz; PLLA = (18.432 * 96) / 9 = 198,608MHz.
*/
AT91C_PMC_PLLAR = (1 << 29) |
(0x60 << 16) | /* MULA = 96 */
(0x2 << 14) |
(0x3f << 8) |
(0x09); /* DIVA = 9 */
/* Wait for PLLA stabilization */
while (!(AT91C_PMC_SR & AT91C_PMC_LOCKA));
/* Wait until the master clock is established for the case we already */
/* turn on the PLLA */
while (!(AT91C_PMC_SR & AT91C_PMC_MCKRDY));
/* Init PMC Step 3.
* Processor Clock = 198,608MHz (PLLA); Master clock =
* (198,608MHz (PLLA))/2 = 98,304MHz.
* The PMC_MCKR register must not be programmed in a single write operation
* (see. Product Errata Sheet)
*/
AT91C_PMC_MCKR = AT91C_PMC_PRES_CLK | AT91C_PMC_MDIV_2;
/* Wait until the master clock is established */
while (!(AT91C_PMC_SR & AT91C_PMC_MCKRDY));
AT91C_PMC_MCKR |= AT91C_PMC_CSS_PLLA_CLK;
/* Wait until the master clock is established */
while (!(AT91C_PMC_SR & AT91C_PMC_MCKRDY));
/* Reset AIC: assign default handler for each interrupt source
*/
/* Disable the interrupt on the interrupt controller */
AT91C_AIC_IDCR = (1 << AT91C_ID_SYS);
/* Assign default handler for each IRQ source */
AT91C_AIC_SVR(AT91C_ID_FIQ) = (int) default_fiq_handler;
for (i = 1; i < 31; i++)
{
AT91C_AIC_SVR(i) = (int) default_irq_handler;
}
AT91C_AIC_SPU = (unsigned int) default_spurious_handler;
/* Perform 8 IT acknoledge (write any value in EOICR) */
/* The End of Interrupt Command Register (AIC_EOICR) must be written in order
to indicate to the AIC that the current interrupt is finished. This causes the
current level to be popped from the stack, restoring the previous current level
if one exists on the stack. If another interrupt is pending, with lower or
equal priority than the old current level but with higher priority than the new
current level, the nIRQ line is re-asserted, but the interrupt sequence does
not immediately start because the “I” bit is set in the core.
SPSR_irq is restored. Finally, the saved value of the link register is restored
directly into the PC. This has the effect of returning from the interrupt to
whatever was being executed before, and of loading the CPSR with the stored
SPSR, masking or unmasking the interrupts depending on the state saved in
SPSR_irq. */
for (i = 0; i < 8 ; i++)
{
AT91C_AIC_EOICR = 0;
}
/* Enable the interrupt on the interrupt controller */
AT91C_AIC_IECR = (1 << AT91C_ID_SYS);
/* Disable Watchdog */
AT91C_WDTC_WDMR = AT91C_WDTC_WDDIS;
/* Remap */
AT91C_MATRIX_MRCR = AT91C_MATRIX_RCA926I | AT91C_MATRIX_RCA926D;
}

29
firmware/target/arm/at91sam/lyre_proto1/system-target.h Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
*
* Copyright (C) 2009 by Jorge Pinto
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef SYSTEM_TARGET_H
#define SYSTEM_TARGET_H
#include "system-arm.h"
void system_init(void);
#endif /* SYSTEM_TARGET_H */

123
firmware/target/arm/at91sam/lyre_proto1/timer-lyre_proto1.c Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
*
* Copyright (C) 2009 by Jorge Pinto
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "cpu.h"
#include "system.h"
#include "timer.h"
#include "logf.h"
#include "at91sam9260.h"
/*-----------------------------------------------------------------------------
* Function Name : pitc_handler
* Object : Handler for PITC interrupt
*---------------------------------------------------------------------------*/
void pitc_handler(void)
{
unsigned long pivr = 0;
unsigned long pisr = 0;
/* Read the PISR */
pisr = AT91C_PITC_PISR & AT91C_PITC_PITS;
if (pisr != 0)
{
/* Read the PIVR. It acknowledges the IT */
pivr = AT91C_PITC_PIVR;
if (pfn_timer != NULL)
pfn_timer();
}
}
bool __timer_set(long cycles, bool start)
{
if (cycles < 1000) /* Max value on PITC?? */
{
if (start && pfn_unregister != NULL)
{
pfn_unregister();
pfn_unregister = NULL;
}
/* Configure a resolution of <cycles> ms */
AT91C_PITC_PIMR = MCK_FREQ / ( 16 * cycles) - 1;
return true;
}
return false;
}
bool __timer_register(void)
{
bool retval = true;
volatile unsigned long pimr = 0;
/* Configure a resolution of 1 ms */
AT91C_PITC_PIMR = MCK_FREQ / (16 * 1000) - 1;
/* Enable interrupts */
/* Disable the interrupt on the interrupt controller */
AT91C_AIC_IDCR = (1 << AT91C_ID_SYS);
/* Save the interrupt handler routine pointer and the interrupt priority */
AT91C_AIC_SVR(AT91C_ID_SYS) = (unsigned long) pitc_handler;
/* Store the Source Mode Register */
AT91C_AIC_SMR(AT91C_ID_SYS) = AT91C_AIC_SRCTYPE_INT_LEVEL_SENSITIVE | \
AT91C_AIC_PRIOR_LOWEST;
/* Clear the interrupt on the interrupt controller */
AT91C_AIC_ICCR = (1 << AT91C_ID_SYS);
/* Enable the interrupt on the interrupt controller */
AT91C_AIC_IECR = (1 << AT91C_ID_SYS);
/* Enable the interrupt on the pit */
pimr = AT91C_PITC_PIMR;
AT91C_PITC_PIMR = pimr | AT91C_PITC_PITIEN;
/* Enable the pit */
pimr = AT91C_PITC_PIMR;
AT91C_PITC_PIMR = pimr | AT91C_PITC_PITEN;
return retval;
}
void __timer_unregister(void)
{
volatile unsigned long pimr = 0;
/* Disable the interrupt on the interrupt controller */
AT91C_AIC_IDCR = (1 << AT91C_ID_SYS);
/* Clear the interrupt on the interrupt controller */
AT91C_AIC_ICCR = (1 << AT91C_ID_SYS);
/* Disable the interrupt on the pit */
pimr = AT91C_PITC_PIMR;
pimr &= ~AT91C_PITC_PITIEN;
AT91C_PITC_PIMR = pimr;
/* Disable the pit */
pimr = AT91C_PITC_PIMR;
pimr &= ~AT91C_PITC_PITEN;
AT91C_PITC_PIMR = pimr;
}

42
firmware/target/arm/at91sam/lyre_proto1/timer-target.h Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
*
* Copyright (C) 2009 by Jorge Pinto
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef TIMER_TARGET_H
#define TIMER_TARGET_H
/* timer is based on PCLK and minimum division is 2 */
#define TIMER_FREQ (49156800/2)
bool __timer_set(long cycles, bool set);
bool __timer_register(void);
void __timer_unregister(void);
#define __TIMER_SET(cycles, set) \
__timer_set(cycles, set)
#define __TIMER_REGISTER(reg_prio, unregister_callback, cycles, \
int_prio, timer_callback) \
__timer_register()
#define __TIMER_UNREGISTER(...) \
__timer_unregister()
#endif /* TIMER_TARGET_H */