diff options
Diffstat (limited to 'c/src/lib/libbsp/sparc/leon3/include/leon.h')
| -rw-r--r-- | c/src/lib/libbsp/sparc/leon3/include/leon.h | 413 |
1 files changed, 413 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/sparc/leon3/include/leon.h b/c/src/lib/libbsp/sparc/leon3/include/leon.h new file mode 100644 index 0000000000..990b359295 --- /dev/null +++ b/c/src/lib/libbsp/sparc/leon3/include/leon.h @@ -0,0 +1,413 @@ +/* leon.h + * + * LEON3 BSP data types and macros. + * + * COPYRIGHT (c) 1989-1998. + * On-Line Applications Research Corporation (OAR). + * + * Modified for LEON3 BSP. + * COPYRIGHT (c) 2004. + * Gaisler Research. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * $Id$ + */ + +#ifndef _INCLUDE_LEON_h +#define _INCLUDE_LEON_h + +#include <rtems/score/sparc.h> +#include <amba.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef ASM +/* + * 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) >= 0x11 && \ + (_trap) <= 0x1F ) + +/* + * Structure for LEON memory mapped registers. + * + * Source: Section 6.1 - On-chip registers + * + * NOTE: There is only one of these structures per CPU, its base address + * is 0x80000000, and the variable LEON_REG is placed there by the + * linkcmds file. + */ + +/* Leon uses dynamic register mapping using amba configuration records, + * LEON_Register_Map is obsolete + */ +/* + typedef struct { + volatile unsigned int Memory_Config_1; + volatile unsigned int Memory_Config_2; + volatile unsigned int Edac_Control; + volatile unsigned int Failed_Address; + volatile unsigned int Memory_Status; + volatile unsigned int Cache_Control; + volatile unsigned int Power_Down; + volatile unsigned int Write_Protection_1; + volatile unsigned int Write_Protection_2; + volatile unsigned int Leon_Configuration; + volatile unsigned int dummy2; + volatile unsigned int dummy3; + volatile unsigned int dummy4; + volatile unsigned int dummy5; + volatile unsigned int dummy6; + volatile unsigned int dummy7; + volatile unsigned int Timer_Counter_1; + volatile unsigned int Timer_Reload_1; + volatile unsigned int Timer_Control_1; + volatile unsigned int Watchdog; + volatile unsigned int Timer_Counter_2; + volatile unsigned int Timer_Reload_2; + volatile unsigned int Timer_Control_2; + volatile unsigned int dummy8; + volatile unsigned int Scaler_Counter; + volatile unsigned int Scaler_Reload; + volatile unsigned int dummy9; + volatile unsigned int dummy10; + volatile unsigned int UART_Channel_1; + volatile unsigned int UART_Status_1; + volatile unsigned int UART_Control_1; + volatile unsigned int UART_Scaler_1; + volatile unsigned int UART_Channel_2; + volatile unsigned int UART_Status_2; + volatile unsigned int UART_Control_2; + volatile unsigned int UART_Scaler_2; + volatile unsigned int Interrupt_Mask; + volatile unsigned int Interrupt_Pending; + volatile unsigned int Interrupt_Force; + volatile unsigned int Interrupt_Clear; + volatile unsigned int PIO_Data; + volatile unsigned int PIO_Direction; + volatile unsigned int PIO_Interrupt; +} LEON_Register_Map; +*/ + +typedef struct { + volatile unsigned int data; + volatile unsigned int status; + volatile unsigned int ctrl; +} LEON3_UART_Regs_Map; + +typedef struct { + volatile unsigned int ilevel; + volatile unsigned int ipend; + volatile unsigned int iforce; + volatile unsigned int iclear; + volatile unsigned int notused00; + volatile unsigned int notused01; + volatile unsigned int notused02; + volatile unsigned int notused03; + volatile unsigned int notused10; + volatile unsigned int notused11; + volatile unsigned int notused12; + volatile unsigned int notused13; + volatile unsigned int notused20; + volatile unsigned int notused21; + volatile unsigned int notused22; + volatile unsigned int notused23; + volatile unsigned int mask_p0; + volatile unsigned int mask_p1; + volatile unsigned int mask_p2; + volatile unsigned int mask_p3; + volatile unsigned int mask_p4; + volatile unsigned int mask_p5; + volatile unsigned int mask_p6; + volatile unsigned int mask_p7; + volatile unsigned int mask_p8; + volatile unsigned int mask_p9; + volatile unsigned int mask_p10; + volatile unsigned int mask_p11; + volatile unsigned int mask_p12; + volatile unsigned int mask_p13; + volatile unsigned int mask_p14; + volatile unsigned int mask_p15; +} LEON3_IrqCtrl_Regs_Map; + +/* +typedef struct { + volatile unsigned int value; + volatile unsigned int reload; + volatile unsigned int conf; + volatile unsigned int notused; +} LEON3_Timer_SubType; +*/ + +typedef struct { + volatile unsigned int scaler_value; /* common timer registers */ + volatile unsigned int scaler_reload; + volatile unsigned int status; + volatile unsigned int notused; + volatile unsigned int value_t0; /* timer 0 */ + volatile unsigned int reload_t0; + volatile unsigned int conf_t0; + volatile unsigned int notused0; + volatile unsigned int value_t1; /* timer 1 */ + volatile unsigned int reload_t1; + volatile unsigned int conf_t1; + volatile unsigned int notused1; + volatile unsigned int value_t2; /* timer 2 */ + volatile unsigned int reload_t2; + volatile unsigned int conf_t2; + volatile unsigned int notused2; + volatile unsigned int value_t3; /* timer 3 */ + volatile unsigned int reload_t3; + volatile unsigned int conf_t3; + volatile unsigned int notused3; + volatile unsigned int value_t4; /* timer 4 */ + volatile unsigned int reload_t4; + volatile unsigned int conf_t4; + volatile unsigned int notused4; + volatile unsigned int value_t5; /* timer 5 */ + volatile unsigned int reload_t5; + volatile unsigned int conf_t5; + volatile unsigned int notused5; + volatile unsigned int value_t6; /* timer 6 */ + volatile unsigned int reload_t6; + volatile unsigned int conf_t6; +} LEON3_Timer_Regs_Map; + +typedef struct { + volatile unsigned int iodata; + volatile unsigned int ioout; + volatile unsigned int iodir; + volatile unsigned int irqmask; + volatile unsigned int irqpol; + volatile unsigned int irqedge; +} LEON3_IOPORT_Regs_Map; + +/* /\* */ +/* * 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. */ +/* *\/ */ +/* Leon uses dynamic register mapping using amba configuration records */ +/* LEON_Register_Map is obsolete */ +/* extern LEON_Register_Map LEON_REG; */ + +#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 */ + + +/* + * Types and structure used for AMBA Plug & Play bus scanning + * + */ + +typedef struct amba_device_table { + int devnr; /* numbrer of devices on AHB or APB bus */ + unsigned int *addr[16]; /* addresses to the devices configuration tables */ +} amba_device_table; + +typedef struct amba_confarea_type { + amba_device_table ahbmst; + amba_device_table ahbslv; + amba_device_table apbslv; + unsigned int apbmst; +} amba_confarea_type; + + extern amba_confarea_type amba_conf; + /* extern amba_device_table amba_ahb_masters; +extern amba_device_table amba_ahb_slaves; +extern amba_device_table amba_apb_slaves; */ +extern unsigned int amba_apbmst_base; /* APB master base address */ +extern volatile LEON3_IrqCtrl_Regs_Map *LEON3_IrqCtrl_Regs; /* LEON3 Interrupt Controller */ +extern volatile LEON3_Timer_Regs_Map *LEON3_Timer_Regs; /* LEON3 GP Timer */ +extern volatile LEON3_UART_Regs_Map *LEON3_Console_Uart[LEON3_APBUARTS]; + +/* Macros used for manipulating bits in LEON3 GP Timer Control Register */ + +#define LEON3_GPTIMER_EN 1 +#define LEON3_GPTIMER_RL 2 +#define LEON3_GPTIMER_LD 4 +#define LEON3_GPTIMER_IRQEN 8 + +#ifndef ASM + +/* + * 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 { \ + LEON3_IrqCtrl_Regs->iclear = (1 << (_source)); \ + } while (0) + +#define LEON_Force_interrupt( _source ) \ + do { \ + LEON3_IrqCtrl_Regs->iforce = (1 << (_source)); \ + } while (0) + +#define LEON_Is_interrupt_pending( _source ) \ + (LEON3_IrqCtrl_Regs.ipend & (1 << (_source))) + +#define LEON_Is_interrupt_masked( _source ) \ + (LEON3_IrqCtrl_Regs.mask_p0 & (1 << (_source))) + +#define LEON_Mask_interrupt( _source ) \ + do { \ + unsigned32 _level; \ + \ + _level = sparc_disable_interrupts(); \ + LEON3_IrqCtrl_Regs->mask_p0 &= ~(1 << (_source)); \ + sparc_enable_interrupts( _level ); \ + } while (0) + +#define LEON_Unmask_interrupt( _source ) \ + do { \ + unsigned32 _level; \ + \ + _level = sparc_disable_interrupts(); \ + LEON3_IrqCtrl_Regs->mask_p0 |= (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) = LEON3_IrqCtrl_Regs->mask_p0; \ + LEON3_IrqCtrl_Regs->mask_p0 = _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(); \ + LEON3_IrqCtrl_Regs->mask_p0 = \ + (LEON3_IrqCtrl_Regs->mask_p0 & ~_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_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 + +#endif /* !ASM */ + +#ifdef __cplusplus +} +#endif + +#endif /* !_INCLUDE_LEON_h */ +/* end of include file */ + |