/*
* Copyright (c) 2011 Aeroflex Gaisler
*
* BSD license:
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef _INCLUDE_LEON_h
#define _INCLUDE_LEON_h
#include <asm-leon/leon3.h>
#include <asm-leon/amba.h>
#ifdef __cplusplus
extern "C"
{
#endif
/* psr defines */
#define SPARC_PSR_WIN_MASK 0x0000001f /* bit 0-4 */
#define SPARC_PSR_ET_MASK 0x00000020 /* bit 5 */
#define SPARC_PSR_PS_MASK 0x00000040 /* bit 6 */
#define SPARC_PSR_S_MASK 0x00000080 /* bit 7 */
#define SPARC_PSR_PIL_MASK 0x00000F00 /* bits 8 - 11 */
#define SPARC_PSR_EF_MASK 0x00001000 /* bit 12 */
#define SPARC_PSR_EC_MASK 0x00002000 /* bit 13 */
#define SPARC_PSR_ICC_MASK 0x00F00000 /* bits 20 - 23 */
#define SPARC_PSR_VER_MASK 0x0F000000 /* bits 24 - 27 */
#define SPARC_PSR_IMPL_MASK 0xF0000000 /* bits 28 - 31 */
#define SPARC_PSR_PIL_SHIFT 8
#define SPARC_NUM_REGWIN _nwindows
#ifndef __ASSEMBLER__
extern int _nwindows;
extern int _leon_version;
#endif
#define LEON_VERSION _leon_version
/*
* Interrupt Sources
*
* The interrupt source numbers directly map to the trap type and to
* the bits used in the Interrupt Clear, Interrupt Force, Interrupt Mask,
* and the Interrupt Pending Registers.
*/
#define LEON_INTERRUPT_CORRECTABLE_MEMORY_ERROR 1
#define LEON2_INTERRUPT_UART_2_RX_TX 2
#define LEON2_INTERRUPT_UART_1_RX_TX 3
#define LEON23_INTERRUPT_UART_2_RX_TX leon23_irqs[1] /*console.c */
#define LEON23_INTERRUPT_UART_1_RX_TX leon23_irqs[0] /*console.c */
#define LEON_INTERRUPT_EXTERNAL_0 4
#define LEON_INTERRUPT_EXTERNAL_1 5
#define LEON_INTERRUPT_EXTERNAL_2 6
#define LEON_INTERRUPT_EXTERNAL_3 7
#define LEON2_INTERRUPT_TIMER1 8
#define LEON2_INTERRUPT_TIMER2 9
#define LEON23_INTERRUPT_TIMER1 leon23_timerirqs[0] /* timer.c */
#define LEON23_INTERRUPT_TIMER2 leon23_timerirqs[1] /* timer.c */
#define LEON_INTERRUPT_EMPTY1 10
#define LEON_INTERRUPT_EMPTY2 11
#define LEON_INTERRUPT_EMPTY3 12
#define LEON_INTERRUPT_EMPTY4 13
#define LEON_INTERRUPT_EMPTY5 14
#define LEON_INTERRUPT_EMPTY6 15
#ifndef __ASSEMBLER__
/*
* Trap Types for on-chip peripherals
*
* Source: Table 8 - Interrupt Trap Type and Default Priority Assignments
*
* NOTE: The priority level for each source corresponds to the least
* significant nibble of the trap type.
*/
#define LEON_TRAP_TYPE( _source ) SPARC_ASYNCHRONOUS_TRAP((_source) + 0x10)
#define LEON_TRAP_SOURCE( _trap ) ((_trap) - 0x10)
#define LEON_INT_TRAP( _trap ) \
( (_trap) >= LEON_TRAP_TYPE( LEON_INTERRUPT_CORRECTABLE_MEMORY_ERROR ) && \
(_trap) <= LEON_TRAP_TYPE( LEON_INTERRUPT_EMPTY6 ) )
#endif
/*
* The following defines the bits in Memory Configuration Register 1.
*/
#define LEON_MEMORY_CONFIGURATION_PROM_SIZE_MASK 0x0003C000
/*
* The following defines the bits in Memory Configuration Register 1.
*/
#define LEON_MEMORY_CONFIGURATION_RAM_SIZE_MASK 0x00001E00
/*
* The following defines the bits in the Timer Control Register.
*/
#define LEON_REG_TIMER_CONTROL_EN 0x00000001 /* 1 = enable counting */
/* 0 = hold scalar and counter */
#define LEON_REG_TIMER_CONTROL_RL 0x00000002 /* 1 = reload at 0 */
/* 0 = stop at 0 */
#define LEON_REG_TIMER_CONTROL_LD 0x00000004 /* 1 = load counter */
/* 0 = no function */
/*
* The following defines the bits in the UART Control Registers.
*
*/
#define LEON_REG_UART_CONTROL_RTD 0x000000FF /* RX/TX data */
/*
* The following defines the bits in the LEON UART Status Registers.
*/
#define LEON_REG_UART_STATUS_DR 0x00000001 /* Data Ready */
#define LEON_REG_UART_STATUS_TSE 0x00000002 /* TX Send Register Empty */
#define LEON_REG_UART_STATUS_THE 0x00000004 /* TX Hold Register Empty */
#define LEON_REG_UART_STATUS_BR 0x00000008 /* Break Error */
#define LEON_REG_UART_STATUS_OE 0x00000010 /* RX Overrun Error */
#define LEON_REG_UART_STATUS_PE 0x00000020 /* RX Parity Error */
#define LEON_REG_UART_STATUS_FE 0x00000040 /* RX Framing Error */
#define LEON_REG_UART_STATUS_ERR 0x00000078 /* Error Mask */
/*
* The following defines the bits in the LEON UART Status Registers.
*/
#define LEON_REG_UART_CTRL_RE 0x00000001 /* Receiver enable */
#define LEON_REG_UART_CTRL_TE 0x00000002 /* Transmitter enable */
#define LEON_REG_UART_CTRL_RI 0x00000004 /* Receiver interrupt enable */
#define LEON_REG_UART_CTRL_TI 0x00000008 /* Transmitter interrupt enable */
#define LEON_REG_UART_CTRL_PS 0x00000010 /* Parity select */
#define LEON_REG_UART_CTRL_PE 0x00000020 /* Parity enable */
#define LEON_REG_UART_CTRL_FL 0x00000040 /* Flow control enable */
#define LEON_REG_UART_CTRL_LB 0x00000080 /* Loop Back enable */
/* leon2 asis */
#define ASI_LEON2_IFLUSH 0x05
#define ASI_LEON2_DFLUSH 0x06
#define ASI_LEON2_CACHEMISS 1
/* leon3 asis */
#define ASI_LEON3_IFLUSH 0x10
#define ASI_LEON3_DFLUSH 0x11
#define ASI_LEON3_CACHEMISS 1
#define ASI_LEON3_SYSCTRL 0x02
#define ASI_LEON23_ITAG 0x0c
#define ASI_LEON23_DTAG 0x0e
#ifndef __ASSEMBLER__
unsigned int leonbare_leon23_loadnocache (unsigned int addr);
unsigned int leonbare_leon23_loadnocache16 (unsigned int addr);
unsigned int leonbare_leon23_loadnocache8 (unsigned int addr);
unsigned int leonbare_leon23_storenocache (unsigned int addr,
unsigned int value);
unsigned int leonbare_leon23_storenocache16 (unsigned int addr,
unsigned int value);
unsigned int leonbare_leon23_storenocache8 (unsigned int addr,
unsigned int value);
unsigned int leonbare_leon3_loadnocache (unsigned int addr);
unsigned int leonbare_leon3_loadnocache16 (unsigned int addr);
unsigned int leonbare_leon3_loadnocache8 (unsigned int addr);
/*
* This is used to manipulate the on-chip registers.
*
* The following symbol must be defined in the linkcmds file and point
* to the correct location.
*/
extern unsigned long *LEON23_IRQ_mask_addr; /* in peripherals.h */
extern unsigned long *LEON23_IRQ_force_addr; /* in peripherals.h */
extern unsigned long *LEON23_IRQ_pending_addr; /* in peripherals.h */
extern unsigned long *LEON23_IRQ_clear_addr; /* in peripherals.h */
/*
* Macros to manipulate the Interrupt Clear, Interrupt Force, Interrupt Mask,
* and the Interrupt Pending Registers.
*
* NOTE: For operations which are not atomic, this code disables interrupts
* to guarantee there are no intervening accesses to the same register.
* The operations which read the register, modify the value and then
* store the result back are vulnerable.
*/
#define LEON_Clear_interrupt( _source ) \
do { \
(*LEON23_IRQ_clear_addr) = (1 << (_source)); \
} while (0)
#define LEON_Force_interrupt( _source ) \
do { \
(*LEON23_IRQ_force_addr) = (1 << (_source)); \
} while (0)
#define LEON_Is_interrupt_masked( _source ) \
((*LEON23_IRQ_mask_addr) & (1 << (_source)))
#define LEON_Mask_interrupt( _source ) \
do { \
unsigned32 _level; \
\
_level = sparc_disable_interrupts(); \
(*LEON23_IRQ_mask_addr) &= ~(1 << (_source)); \
sparc_enable_interrupts( _level ); \
} while (0)
#define LEON_Unmask_interrupt( _source ) \
do { \
unsigned32 _level; \
\
_level = sparc_disable_interrupts(); \
(*LEON23_IRQ_mask_addr) |= (1 << (_source)); \
sparc_enable_interrupts( _level ); \
} while (0)
#define LEON_Disable_interrupt( _source, _previous ) \
do { \
unsigned32 _level; \
unsigned32 _mask = 1 << (_source); \
\
_level = sparc_disable_interrupts(); \
(_previous) = (*LEON23_IRQ_mask_addr); \
(*LEON23_IRQ_mask_addr) = _previous & ~_mask; \
sparc_enable_interrupts( _level ); \
(_previous) &= _mask; \
} while (0)
#define LEON_Restore_interrupt( _source, _previous ) \
do { \
unsigned32 _level; \
unsigned32 _mask = 1 << (_source); \
\
_level = sparc_disable_interrupts(); \
(*LEON23_IRQ_mask_addr) = \
((*LEON23_IRQ_mask_addr) & ~_mask) | (_previous); \
sparc_enable_interrupts( _level ); \
} while (0)
/*
* Each timer control register is organized as follows:
*
* D0 - Enable
* 1 = enable counting
* 0 = hold scaler and counter
*
* D1 - Counter Reload
* 1 = reload counter at zero and restart
* 0 = stop counter at zero
*
* D2 - Counter Load
* 1 = load counter with preset value
* 0 = no function
*
*/
#define LEON_REG_TIMER_COUNTER_IRQEN 0x00000008
#define LEON_REG_TIMER_COUNTER_RELOAD_AT_ZERO 0x00000002
#define LEON_REG_TIMER_COUNTER_STOP_AT_ZERO 0x00000000
#define LEON_REG_TIMER_COUNTER_LOAD_COUNTER 0x00000004
#define LEON_REG_TIMER_COUNTER_ENABLE_COUNTING 0x00000001
#define LEON_REG_TIMER_COUNTER_DISABLE_COUNTING 0x00000000
#define LEON_REG_TIMER_COUNTER_RELOAD_MASK 0x00000002
#define LEON_REG_TIMER_COUNTER_ENABLE_MASK 0x00000001
#define LEON_REG_TIMER_COUNTER_DEFINED_MASK 0x00000003
#define LEON_REG_TIMER_COUNTER_CURRENT_MODE_MASK 0x00000003
/* console.c */
int lo_sprintf (char *buf, const char *fmt, ...);
/* do a virtual address read without cache */
static __inline__ unsigned long leon23_getpsr ()
{
unsigned long retval;
__asm__ __volatile__ ("mov %%psr, %0\n\t":"=r" (retval):);
return retval;
}
extern __inline__ void sparc_leon2_dcache_flush (void)
{
__asm__
__volatile__ ("sta %%g0, [%%g0] %0\n\t"::"i"
(ASI_LEON2_IFLUSH):"memory");
__asm__
__volatile__ ("sta %%g0, [%%g0] %0\n\t"::"i"
(ASI_LEON2_DFLUSH):"memory");
};
extern __inline__ void sparc_leon_dcache_flush (void)
{
switch (sparc_leon23_get_psr_version ())
{
case 0:
case 2:
sparc_leon2_dcache_flush ();
break;
default:
sparc_leon3_dcache_flush ();
break;
}
}
extern int lolevelirqinstall (int irqnr, void (*handler) ());
extern unsigned long locore_readtbr ();
extern void _leonbase_Stop ();
extern void uninstall_winoverflow_hook ();
extern int install_winoverflow_hook (void (*func) (void));
extern void sparc_leon23_icache_flush ();
extern void sparc_leon23_dcache_flush ();
#endif /* ! __ASSEMBLER__ */
#ifdef __cplusplus
}
#endif
#define TACODE_IRQCALL 2
#define TACODE_IRQCALL_FLUSH 6
#define TACODE_FLUSH 3
#define TACODE_IRQCALLDIS 5
#endif /* !_INCLUDE_LEON_h */
/* end of include file */