SPARC: Added support for SPARC LEON2 SOC Processor.

Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>

3 files changed, 276 insertions, 0 deletions

diff --git a/include/asm-sparc/arch-leon2/asi.h b/include/asm-sparc/arch-leon2/asi.h
new file mode 100644
index 0000000..38fdd5c
--- /dev/null
+++ b/include/asm-sparc/arch-leon2/asi.h
@@ -0,0 +1,36 @@
+/* asi.h:  Address Space Identifier values for the LEON2 sparc.
+ *
+ * Copyright (C) 2008 Daniel Hellstrom (daniel@gaisler.com)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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_ASI_H
+#define _LEON2_ASI_H
+
+#define ASI_CACHEMISS		0x01	/* Force D-Cache miss on load (lda) */
+#define ASI_M_FLUSH_PROBE	0x03	/* MMU Flush/Probe */
+#define ASI_IFLUSH		0x05	/* Flush I-Cache */
+#define ASI_DFLUSH		0x06	/* Flush D-Cache */
+#define ASI_BYPASS		0x1c	/* Bypass MMU (Physical address) */
+#define ASI_MMUFLUSH		0x18	/* FLUSH TLB */
+#define ASI_M_MMUREGS		0x19	/* READ/Write MMU Registers */
+
+#endif	/* _LEON2_ASI_H */
diff --git a/include/asm-sparc/leon.h b/include/asm-sparc/leon.h
index 6036fb5..f7175ee 100644
--- a/include/asm-sparc/leon.h
+++ b/include/asm-sparc/leon.h
@@ -27,6 +27,10 @@
 
 #include <asm/leon3.h>
 
+#elif defined(CONFIG_LEON2)
+
+#include <asm/leon2.h>
+
 #else
 
 #error Unknown LEON processor
diff --git a/include/asm-sparc/leon2.h b/include/asm-sparc/leon2.h
new file mode 100644
index 0000000..fa55cad
--- /dev/null
+++ b/include/asm-sparc/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