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Diffstat (limited to 'arch/sparc/include/asm/leon2.h')
| -rw-r--r-- | arch/sparc/include/asm/leon2.h | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/leon2.h b/arch/sparc/include/asm/leon2.h new file mode 100644 index 0000000..fa55cad --- /dev/null +++ b/arch/sparc/include/asm/leon2.h @@ -0,0 +1,236 @@ +/* LEON2 header file. LEON2 is a SOC processor. + * + * (C) Copyright 2008 + * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com. + * + * 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 __LEON2_H__ +#define __LEON2_H__ + +#ifdef CONFIG_LEON2 + +/* LEON 2 I/O register definitions */ +#define LEON2_PREGS 0x80000000 +#define LEON2_MCFG1 0x00 +#define LEON2_MCFG2 0x04 +#define LEON2_ECTRL 0x08 +#define LEON2_FADDR 0x0C +#define LEON2_MSTAT 0x10 +#define LEON2_CCTRL 0x14 +#define LEON2_PWDOWN 0x18 +#define LEON2_WPROT1 0x1C +#define LEON2_WPROT2 0x20 +#define LEON2_LCONF 0x24 +#define LEON2_TCNT0 0x40 +#define LEON2_TRLD0 0x44 +#define LEON2_TCTRL0 0x48 +#define LEON2_TCNT1 0x50 +#define LEON2_TRLD1 0x54 +#define LEON2_TCTRL1 0x58 +#define LEON2_SCNT 0x60 +#define LEON2_SRLD 0x64 +#define LEON2_UART0 0x70 +#define LEON2_UDATA0 0x70 +#define LEON2_USTAT0 0x74 +#define LEON2_UCTRL0 0x78 +#define LEON2_USCAL0 0x7C +#define LEON2_UART1 0x80 +#define LEON2_UDATA1 0x80 +#define LEON2_USTAT1 0x84 +#define LEON2_UCTRL1 0x88 +#define LEON2_USCAL1 0x8C +#define LEON2_IMASK 0x90 +#define LEON2_IPEND 0x94 +#define LEON2_IFORCE 0x98 +#define LEON2_ICLEAR 0x9C +#define LEON2_IOREG 0xA0 +#define LEON2_IODIR 0xA4 +#define LEON2_IOICONF 0xA8 +#define LEON2_IPEND2 0xB0 +#define LEON2_IMASK2 0xB4 +#define LEON2_ISTAT2 0xB8 +#define LEON2_ICLEAR2 0xBC + +#ifndef __ASSEMBLER__ +/* + * 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. + */ +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; +} LEON2_regs; + +typedef struct { + volatile unsigned int UART_Channel; + volatile unsigned int UART_Status; + volatile unsigned int UART_Control; + volatile unsigned int UART_Scaler; +} LEON2_Uart_regs; + +#endif + +/* + * The following constants are intended to be used ONLY in assembly + * language files. + * + * NOTE: The intended style of usage is to load the address of LEON REGS + * into a register and then use these as displacements from + * that register. + */ +#define LEON_REG_MEMCFG1_OFFSET 0x00 +#define LEON_REG_MEMCFG2_OFFSET 0x04 +#define LEON_REG_EDACCTRL_OFFSET 0x08 +#define LEON_REG_FAILADDR_OFFSET 0x0C +#define LEON_REG_MEMSTATUS_OFFSET 0x10 +#define LEON_REG_CACHECTRL_OFFSET 0x14 +#define LEON_REG_POWERDOWN_OFFSET 0x18 +#define LEON_REG_WRITEPROT1_OFFSET 0x1C +#define LEON_REG_WRITEPROT2_OFFSET 0x20 +#define LEON_REG_LEONCONF_OFFSET 0x24 +#define LEON_REG_UNIMPLEMENTED_2_OFFSET 0x28 +#define LEON_REG_UNIMPLEMENTED_3_OFFSET 0x2C +#define LEON_REG_UNIMPLEMENTED_4_OFFSET 0x30 +#define LEON_REG_UNIMPLEMENTED_5_OFFSET 0x34 +#define LEON_REG_UNIMPLEMENTED_6_OFFSET 0x38 +#define LEON_REG_UNIMPLEMENTED_7_OFFSET 0x3C +#define LEON_REG_TIMERCNT1_OFFSET 0x40 +#define LEON_REG_TIMERLOAD1_OFFSET 0x44 +#define LEON_REG_TIMERCTRL1_OFFSET 0x48 +#define LEON_REG_WDOG_OFFSET 0x4C +#define LEON_REG_TIMERCNT2_OFFSET 0x50 +#define LEON_REG_TIMERLOAD2_OFFSET 0x54 +#define LEON_REG_TIMERCTRL2_OFFSET 0x58 +#define LEON_REG_UNIMPLEMENTED_8_OFFSET 0x5C +#define LEON_REG_SCALERCNT_OFFSET 0x60 +#define LEON_REG_SCALER_LOAD_OFFSET 0x64 +#define LEON_REG_UNIMPLEMENTED_9_OFFSET 0x68 +#define LEON_REG_UNIMPLEMENTED_10_OFFSET 0x6C +#define LEON_REG_UARTDATA1_OFFSET 0x70 +#define LEON_REG_UARTSTATUS1_OFFSET 0x74 +#define LEON_REG_UARTCTRL1_OFFSET 0x78 +#define LEON_REG_UARTSCALER1_OFFSET 0x7C +#define LEON_REG_UARTDATA2_OFFSET 0x80 +#define LEON_REG_UARTSTATUS2_OFFSET 0x84 +#define LEON_REG_UARTCTRL2_OFFSET 0x88 +#define LEON_REG_UARTSCALER2_OFFSET 0x8C +#define LEON_REG_IRQMASK_OFFSET 0x90 +#define LEON_REG_IRQPEND_OFFSET 0x94 +#define LEON_REG_IRQFORCE_OFFSET 0x98 +#define LEON_REG_IRQCLEAR_OFFSET 0x9C +#define LEON_REG_PIODATA_OFFSET 0xA0 +#define LEON_REG_PIODIR_OFFSET 0xA4 +#define LEON_REG_PIOIRQ_OFFSET 0xA8 +#define LEON_REG_SIM_RAM_SIZE_OFFSET 0xF4 +#define LEON_REG_SIM_ROM_SIZE_OFFSET 0xF8 + +/* + * 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 LEON_INTERRUPT_UART_1_RX_TX 2 +#define LEON_INTERRUPT_UART_0_RX_TX 3 +#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 LEON_INTERRUPT_TIMER1 8 +#define LEON_INTERRUPT_TIMER2 9 +#define LEON_INTERRUPT_EMPTY1 10 +#define LEON_INTERRUPT_EMPTY2 11 +#define LEON_INTERRUPT_OPEN_ETH 12 +#define LEON_INTERRUPT_EMPTY4 13 +#define LEON_INTERRUPT_EMPTY5 14 +#define LEON_INTERRUPT_EMPTY6 15 + +/* Timer Bits */ +#define LEON2_TIMER_CTRL_EN 0x1 /* Timer enable */ +#define LEON2_TIMER_CTRL_RS 0x2 /* Timer reStart */ +#define LEON2_TIMER_CTRL_LD 0x4 /* Timer reLoad */ +#define LEON2_TIMER1_IRQNO 8 /* Timer 1 IRQ number */ +#define LEON2_TIMER2_IRQNO 9 /* Timer 2 IRQ number */ +#define LEON2_TIMER1_IE (1<<LEON2_TIMER1_IRQNO) /* Timer 1 interrupt enable */ +#define LEON2_TIMER2_IE (1<<LEON2_TIMER2_IRQNO) /* Timer 2 interrupt enable */ + +/* UART bits */ +#define LEON2_UART_CTRL_RE 1 /* UART Receiver enable */ +#define LEON2_UART_CTRL_TE 2 /* UART Transmitter enable */ +#define LEON2_UART_CTRL_RI 4 /* UART Receiver Interrupt enable */ +#define LEON2_UART_CTRL_TI 8 /* UART Transmitter Interrupt enable */ +#define LEON2_UART_CTRL_DBG (1<<11) /* Debug Bit used by GRMON */ + +#define LEON2_UART_STAT_DR 1 /* UART Data Ready */ +#define LEON2_UART_STAT_TSE 2 /* UART Transmit Shift Reg empty */ +#define LEON2_UART_STAT_THE 4 /* UART Transmit Hold Reg empty */ + +#else +#error Include LEON2 header file only if LEON2 processor +#endif + +#endif |