1 files changed, 346 insertions, 0 deletions

diff --git a/include/asm-mips/ddb5xxx/ddb5477.h b/include/asm-mips/ddb5xxx/ddb5477.h
new file mode 100644
index 000000000000..ae3e2a38fd5f
--- /dev/null
+++ b/include/asm-mips/ddb5xxx/ddb5477.h
@@ -0,0 +1,346 @@
+/***********************************************************************
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: jsun@mvista.com or jsun@junsun.net
+ *
+ * include/asm-mips/ddb5xxx/ddb5477.h
+ *     DDB 5477 specific definitions and macros.
+ *
+ * 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.
+ *
+ ***********************************************************************
+ */
+
+#ifndef __ASM_DDB5XXX_DDB5477_H
+#define __ASM_DDB5XXX_DDB5477_H
+
+#include <linux/config.h>
+
+/*
+ * This contains macros that are specific to DDB5477 or renamed from
+ * DDB5476.
+ */
+
+/*
+ * renamed PADRs
+ */
+#define DDB_LCS0        DDB_DCS2
+#define DDB_LCS1        DDB_DCS3
+#define DDB_LCS2        DDB_DCS4
+#define DDB_VRC5477     DDB_INTCS
+
+/*
+ * New CPU interface registers
+ */
+#define DDB_INTCTRL0    0x0400  /* Interrupt Control 0 */
+#define DDB_INTCTRL1    0x0404  /* Interrupt Control 1 */
+#define DDB_INTCTRL2    0x0408  /* Interrupt Control 2 */
+#define DDB_INTCTRL3    0x040c  /* Interrupt Control 3 */
+
+#define DDB_INT0STAT    0x0420  /* INT0 Status [R] */
+#define DDB_INT1STAT    0x0428  /* INT1 Status [R] */
+#define DDB_INT2STAT    0x0430  /* INT2 Status [R] */
+#define DDB_INT3STAT    0x0438  /* INT3 Status [R] */
+#define DDB_INT4STAT    0x0440  /* INT4 Status [R] */
+#define DDB_NMISTAT     0x0450  /* NMI Status [R] */
+
+#define DDB_INTCLR32    0x0468  /* Interrupt Clear */
+
+#define DDB_INTPPES0    0x0470  /* PCI0 Interrupt Control */
+#define DDB_INTPPES1    0x0478  /* PCI1 Interrupt Control */
+
+#undef  DDB_CPUSTAT             /* duplicate in Vrc-5477 */
+#define DDB_CPUSTAT     0x0480  /* CPU Status [R] */
+#define DDB_BUSCTRL     0x0488  /* Internal Bus Control */
+
+
+/*
+ * Timer registers
+ */
+#define DDB_REFCTRL_L   DDB_T0CTRL
+#define DDB_REFCTRL_H   (DDB_T0CTRL+4)
+#define DDB_REFCNTR     DDB_T0CNTR
+#define DDB_SPT0CTRL_L  DDB_T1CTRL
+#define DDB_SPT0CTRL_H  (DDB_T1CTRL+4)
+#define DDB_SPT1CTRL_L  DDB_T2CTRL
+#define DDB_SPT1CTRL_H  (DDB_T2CTRL+4)
+#define DDB_SPT1CNTR    DDB_T1CTRL
+#define DDB_WDTCTRL_L   DDB_T3CTRL
+#define DDB_WDTCTRL_H   (DDB_T3CTRL+4)
+#define DDB_WDTCNTR     DDB_T3CNTR
+
+/*
+ * DMA registers are moved.  We don't care about it for now. TODO.
+ */
+
+/*
+ * BARs for ext PCI (PCI0)
+ */
+#undef  DDB_BARC
+#undef  DDB_BARB
+
+#define DDB_BARC0       0x0210  /* PCI0 Control */
+#define DDB_BARM010     0x0218  /* PCI0 SDRAM bank01 */
+#define DDB_BARM230     0x0220  /* PCI0 SDRAM bank23 */
+#define DDB_BAR00       0x0240  /* PCI0 LDCS0 */
+#define DDB_BAR10       0x0248  /* PCI0 LDCS1 */
+#define DDB_BAR20       0x0250  /* PCI0 LDCS2 */
+#define DDB_BAR30       0x0258  /* PCI0 LDCS3 */
+#define DDB_BAR40       0x0260  /* PCI0 LDCS4 */
+#define DDB_BAR50       0x0268  /* PCI0 LDCS5 */
+#define DDB_BARB0       0x0280  /* PCI0 BOOT */
+#define DDB_BARP00      0x0290  /* PCI0 for IOPCI Window0 */
+#define DDB_BARP10      0x0298  /* PCI0 for IOPCI Window1 */
+
+/*
+ * BARs for IOPIC (PCI1)
+ */
+#define DDB_BARC1       0x0610  /* PCI1 Control */
+#define DDB_BARM011     0x0618  /* PCI1 SDRAM bank01 */
+#define DDB_BARM231     0x0620  /* PCI1 SDRAM bank23 */
+#define DDB_BAR01       0x0640  /* PCI1 LDCS0 */
+#define DDB_BAR11       0x0648  /* PCI1 LDCS1 */
+#define DDB_BAR21       0x0650  /* PCI1 LDCS2 */
+#define DDB_BAR31       0x0658  /* PCI1 LDCS3 */
+#define DDB_BAR41       0x0660  /* PCI1 LDCS4 */
+#define DDB_BAR51       0x0668  /* PCI1 LDCS5 */
+#define DDB_BARB1       0x0680  /* PCI1 BOOT */
+#define DDB_BARP01      0x0690  /* PCI1 for ext PCI Window0 */
+#define DDB_BARP11      0x0698  /* PCI1 for ext PCI Window1 */
+
+/*
+ * Other registers for ext PCI (PCI0)
+ */
+#define DDB_PCIINIT00   0x02f0  /* PCI0 Initiator 0 */
+#define DDB_PCIINIT10   0x02f8  /* PCI0 Initiator 1 */
+
+#define DDB_PCISWP0     0x02b0  /* PCI0 Swap */
+#define DDB_PCIERR0     0x02b8  /* PCI0 Error */
+
+#define DDB_PCICTL0_L   0x02e0  /* PCI0 Control-L */
+#define DDB_PCICTL0_H   0x02e4  /* PCI0 Control-H */
+#define DDB_PCIARB0_L   0x02e8  /* PCI0 Arbitration-L */
+#define DDB_PCIARB0_H   0x02ec  /* PCI0 Arbitration-H */
+
+/*
+ * Other registers for IOPCI (PCI1)
+ */
+#define DDB_IOPCIW0     0x00d0  /* PCI Address Window 0 [R/W] */
+#define DDB_IOPCIW1     0x00d8  /* PCI Address Window 1 [R/W] */
+
+#define DDB_PCIINIT01   0x06f0  /* PCI1 Initiator 0 */
+#define DDB_PCIINIT11   0x06f8  /* PCI1 Initiator 1 */
+
+#define DDB_PCISWP1     0x06b0  /* PCI1 Swap */
+#define DDB_PCIERR1     0x06b8  /* PCI1 Error */
+
+#define DDB_PCICTL1_L   0x06e0  /* PCI1 Control-L */
+#define DDB_PCICTL1_H   0x06e4  /* PCI1 Control-H */
+#define DDB_PCIARB1_L   0x06e8  /* PCI1 Arbitration-L */
+#define DDB_PCIARB1_H   0x06ec  /* PCI1 Arbitration-H */
+
+/*
+ * Local Bus
+ */
+#define DDB_LCST0       0x0110  /* LB Chip Select Timing 0 */
+#define DDB_LCST1       0x0118  /* LB Chip Select Timing 1 */
+#undef DDB_LCST2
+#define DDB_LCST2       0x0120  /* LB Chip Select Timing 2 */
+#undef DDB_LCST3
+#undef DDB_LCST4
+#undef DDB_LCST5
+#undef DDB_LCST6
+#undef DDB_LCST7
+#undef DDB_LCST8
+#define DDB_ERRADR      0x0150  /* Error Address Register */
+#define DDB_ERRCS       0x0160
+#define DDB_BTM         0x0170  /* Boot Time Mode value */
+
+/*
+ * MISC registers
+ */
+#define DDB_GIUFUNSEL   0x4040  /* select dual-func pins */
+#define DDB_PIBMISC     0x0750  /* USB buffer enable / power saving */
+
+/*
+ *  Memory map (physical address)
+ *
+ *  Note most of the following address must be properly aligned by the
+ *  corresponding size.  For example, if PCI_IO_SIZE is 16MB, then
+ *  PCI_IO_BASE must be aligned along 16MB boundary.
+ */
+
+/* the actual ram size is detected at run-time */
+#define DDB_SDRAM_BASE          0x00000000
+#define DDB_MAX_SDRAM_SIZE      0x08000000      /* less than 128MB */
+
+#define DDB_PCI0_MEM_BASE       0x08000000
+#define DDB_PCI0_MEM_SIZE       0x08000000      /* 128 MB */
+
+#define DDB_PCI1_MEM_BASE       0x10000000
+#define DDB_PCI1_MEM_SIZE       0x08000000      /* 128 MB */
+
+#define DDB_PCI0_CONFIG_BASE    0x18000000
+#define DDB_PCI0_CONFIG_SIZE    0x01000000      /* 16 MB */
+
+#define DDB_PCI1_CONFIG_BASE    0x19000000
+#define DDB_PCI1_CONFIG_SIZE    0x01000000      /* 16 MB */
+
+#define DDB_PCI_IO_BASE         0x1a000000      /* we concatenate two IOs */
+#define DDB_PCI0_IO_BASE        0x1a000000
+#define DDB_PCI0_IO_SIZE        0x01000000      /* 16 MB */
+#define DDB_PCI1_IO_BASE        0x1b000000
+#define DDB_PCI1_IO_SIZE        0x01000000      /* 16 MB */
+
+#define DDB_LCS0_BASE           0x1c000000      /* flash memory */
+#define DDB_LCS0_SIZE           0x01000000      /* 16 MB */
+
+#define DDB_LCS1_BASE           0x1d000000      /* misc */
+#define DDB_LCS1_SIZE           0x01000000      /* 16 MB */
+
+#define DDB_LCS2_BASE           0x1e000000      /* Mezzanine */
+#define DDB_LCS2_SIZE           0x01000000      /* 16 MB */
+
+#define DDB_VRC5477_BASE        0x1fa00000      /* VRC5477 control regs */
+#define DDB_VRC5477_SIZE        0x00200000      /* 2MB */
+
+#define DDB_BOOTCS_BASE         0x1fc00000      /* Boot ROM / EPROM /Flash */
+#define DDB_BOOTCS_SIZE         0x00200000      /* 2 MB - doc says 4MB */
+
+#define DDB_LED                 DDB_LCS1_BASE + 0x10000
+
+
+/*
+ * DDB5477 specific functions
+ */
+#ifndef __ASSEMBLY__
+extern void ddb5477_irq_setup(void);
+
+/* route irq to cpu int pin */
+extern void ll_vrc5477_irq_route(int vrc5477_irq, int ip);
+
+/* low-level routine for enabling vrc5477 irq, bypassing high-level */
+extern void ll_vrc5477_irq_enable(int vrc5477_irq);
+extern void ll_vrc5477_irq_disable(int vrc5477_irq);
+#endif /* !__ASSEMBLY__ */
+
+/* PCI intr ack share PCIW0 with PCI IO */
+#define DDB_PCI_IACK_BASE       DDB_PCI_IO_BASE
+
+/*
+ * Interrupt mapping
+ *
+ * We have three interrupt controllers:
+ *
+ *   . CPU itself - 8 sources
+ *   . i8259 - 16 sources
+ *   . vrc5477 - 32 sources
+ *
+ *  They connected as follows:
+ *    all vrc5477 interrupts are routed to cpu IP2 (by software setting)
+ *    all i8359 are routed to INTC in vrc5477 (by hardware connection)
+ *
+ *  All VRC5477 PCI interrupts are level-triggered (no ack needed).
+ *  All PCI irq but INTC are active low.
+ */
+
+/* 
+ * irq number block assignment
+ */
+
+#define NUM_CPU_IRQ             8
+#define NUM_I8259_IRQ           16
+#define NUM_VRC5477_IRQ         32
+
+#define DDB_IRQ_BASE            0
+
+#define I8259_IRQ_BASE          DDB_IRQ_BASE
+#define VRC5477_IRQ_BASE        (I8259_IRQ_BASE + NUM_I8259_IRQ)
+#define CPU_IRQ_BASE            (VRC5477_IRQ_BASE + NUM_VRC5477_IRQ)
+
+/*
+ * vrc5477 irq defs
+ */
+
+#define VRC5477_IRQ_CPCE        (0 + VRC5477_IRQ_BASE)  /* cpu parity error */
+#define VRC5477_IRQ_CNTD        (1 + VRC5477_IRQ_BASE)  /* cpu no target */
+#define VRC5477_IRQ_I2C         (2 + VRC5477_IRQ_BASE)  /* I2C */
+#define VRC5477_IRQ_DMA         (3 + VRC5477_IRQ_BASE)  /* DMA */
+#define VRC5477_IRQ_UART0       (4 + VRC5477_IRQ_BASE)
+#define VRC5477_IRQ_WDOG        (5 + VRC5477_IRQ_BASE)  /* watchdog timer */
+#define VRC5477_IRQ_SPT1        (6 + VRC5477_IRQ_BASE)    /* special purpose timer 1 */
+#define VRC5477_IRQ_LBRT        (7 + VRC5477_IRQ_BASE)  /* local bus read timeout */
+#define VRC5477_IRQ_INTA        (8 + VRC5477_IRQ_BASE)  /* PCI INT #A */
+#define VRC5477_IRQ_INTB        (9 + VRC5477_IRQ_BASE)  /* PCI INT #B */
+#define VRC5477_IRQ_INTC        (10 + VRC5477_IRQ_BASE) /* PCI INT #C */
+#define VRC5477_IRQ_INTD        (11 + VRC5477_IRQ_BASE) /* PCI INT #D */
+#define VRC5477_IRQ_INTE        (12 + VRC5477_IRQ_BASE) /* PCI INT #E */
+#define VRC5477_IRQ_RESERVED_13 (13 + VRC5477_IRQ_BASE) /* reserved  */
+#define VRC5477_IRQ_PCIS        (14 + VRC5477_IRQ_BASE) /* PCI SERR #  */
+#define VRC5477_IRQ_PCI         (15 + VRC5477_IRQ_BASE) /* PCI internal error */
+#define VRC5477_IRQ_IOPCI_INTA  (16 + VRC5477_IRQ_BASE)      /* USB-H */
+#define VRC5477_IRQ_IOPCI_INTB  (17 + VRC5477_IRQ_BASE)      /* USB-P */
+#define VRC5477_IRQ_IOPCI_INTC  (18 + VRC5477_IRQ_BASE)      /* AC97 */
+#define VRC5477_IRQ_IOPCI_INTD  (19 + VRC5477_IRQ_BASE)      /* Reserved */
+#define VRC5477_IRQ_UART1       (20 + VRC5477_IRQ_BASE)     
+#define VRC5477_IRQ_SPT0        (21 + VRC5477_IRQ_BASE)      /* special purpose timer 0 */
+#define VRC5477_IRQ_GPT0        (22 + VRC5477_IRQ_BASE)      /* general purpose timer 0 */
+#define VRC5477_IRQ_GPT1        (23 + VRC5477_IRQ_BASE)      /* general purpose timer 1 */
+#define VRC5477_IRQ_GPT2        (24 + VRC5477_IRQ_BASE)      /* general purpose timer 2 */
+#define VRC5477_IRQ_GPT3        (25 + VRC5477_IRQ_BASE)      /* general purpose timer 3 */
+#define VRC5477_IRQ_GPIO        (26 + VRC5477_IRQ_BASE)
+#define VRC5477_IRQ_SIO0        (27 + VRC5477_IRQ_BASE)
+#define VRC5477_IRQ_SIO1        (28 + VRC5477_IRQ_BASE)
+#define VRC5477_IRQ_RESERVED_29 (29 + VRC5477_IRQ_BASE)      /* reserved */
+#define VRC5477_IRQ_IOPCISERR   (30 + VRC5477_IRQ_BASE)      /* IO PCI SERR # */
+#define VRC5477_IRQ_IOPCI       (31 + VRC5477_IRQ_BASE)
+
+/*
+ * i2859 irq assignment
+ */
+#define I8259_IRQ_RESERVED_0    (0 + I8259_IRQ_BASE)    
+#define I8259_IRQ_KEYBOARD      (1 + I8259_IRQ_BASE)    /* M1543 default */
+#define I8259_IRQ_CASCADE       (2 + I8259_IRQ_BASE)
+#define I8259_IRQ_UART_B        (3 + I8259_IRQ_BASE)    /* M1543 default, may conflict with RTC according to schematic diagram  */
+#define I8259_IRQ_UART_A        (4 + I8259_IRQ_BASE)    /* M1543 default */
+#define I8259_IRQ_PARALLEL      (5 + I8259_IRQ_BASE)    /* M1543 default */
+#define I8259_IRQ_RESERVED_6    (6 + I8259_IRQ_BASE)
+#define I8259_IRQ_RESERVED_7    (7 + I8259_IRQ_BASE)
+#define I8259_IRQ_RTC           (8 + I8259_IRQ_BASE)    /* who set this? */
+#define I8259_IRQ_USB           (9 + I8259_IRQ_BASE)    /* ddb_setup */
+#define I8259_IRQ_PMU           (10 + I8259_IRQ_BASE)   /* ddb_setup */
+#define I8259_IRQ_RESERVED_11   (11 + I8259_IRQ_BASE)
+#define I8259_IRQ_RESERVED_12   (12 + I8259_IRQ_BASE)   /* m1543_irq_setup */
+#define I8259_IRQ_RESERVED_13   (13 + I8259_IRQ_BASE)
+#define I8259_IRQ_HDC1          (14 + I8259_IRQ_BASE)   /* default and ddb_setup */
+#define I8259_IRQ_HDC2          (15 + I8259_IRQ_BASE)   /* default */
+
+
+/*
+ * misc
+ */
+#define VRC5477_I8259_CASCADE   (VRC5477_IRQ_INTC - VRC5477_IRQ_BASE)
+#define CPU_VRC5477_CASCADE     2
+
+/*
+ * debug routines
+ */
+#ifndef __ASSEMBLY__
+#if defined(CONFIG_RUNTIME_DEBUG)
+extern void vrc5477_show_pdar_regs(void);
+extern void vrc5477_show_pci_regs(void);
+extern void vrc5477_show_bar_regs(void);
+extern void vrc5477_show_int_regs(void);
+extern void vrc5477_show_all_regs(void);
+#endif
+
+/*
+ * RAM size
+ */
+extern int board_ram_size;
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_DDB5XXX_DDB5477_H */