sh: Consolidated SH7751/SH7780 PCI support.

This cleans up quite a lot of the PCI mess that we
currently have, and attempts to consolidate the
duplication in the SH7780 and SH7751 PCI controllers.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 180 insertions, 0 deletions

diff --git a/arch/sh/drivers/pci/pci-sh4.h b/arch/sh/drivers/pci/pci-sh4.h
new file mode 100644
index 000000000000..5a61d6041f2c
--- /dev/null
+++ b/arch/sh/drivers/pci/pci-sh4.h
@@ -0,0 +1,180 @@
+#ifndef __PCI_SH4_H
+#define __PCI_SH4_H
+
+#ifdef CONFIG_CPU_SUBTYPE_SH7780
+#include "pci-sh7780.h"
+#else
+#include "pci-sh7751.h"
+#endif
+
+#include <asm/io.h>
+
+/* startup values */
+#define PCI_PROBE_BIOS          1
+#define PCI_PROBE_CONF1         2
+#define PCI_PROBE_CONF2         4
+#define PCI_NO_SORT             0x100
+#define PCI_BIOS_SORT           0x200
+#define PCI_NO_CHECKS           0x400
+#define PCI_ASSIGN_ROMS         0x1000
+#define PCI_BIOS_IRQ_SCAN       0x2000
+
+#define SH4_PCICR               0x100           /* PCI Control Register */
+  #define SH4_PCICR_PREFIX        0xA5000000    /* CR prefix for write */
+  #define SH4_PCICR_FTO           0x00000400    /* TRDY/IRDY Enable */
+  #define SH4_PCICR_TRSB          0x00000200    /* Target Read Single */
+  #define SH4_PCICR_BSWP          0x00000100    /* Target Byte Swap */
+  #define SH4_PCICR_PLUP          0x00000080    /* Enable PCI Pullup */
+  #define SH4_PCICR_ARBM          0x00000040    /* PCI Arbitration Mode */
+  #define SH4_PCICR_MD            0x00000030    /* MD9 and MD10 status */
+  #define SH4_PCICR_SERR          0x00000008    /* SERR output assert */
+  #define SH4_PCICR_INTA          0x00000004    /* INTA output assert */
+  #define SH4_PCICR_PRST          0x00000002    /* PCI Reset Assert */
+  #define SH4_PCICR_CFIN          0x00000001    /* Central Fun. Init Done */
+#define SH4_PCILSR0             0x104           /* PCI Local Space Register0 */
+#define SH4_PCILSR1             0x108           /* PCI Local Space Register1 */
+#define SH4_PCILAR0             0x10C           /* PCI Local Addr Register1 */
+#define SH4_PCILAR1             0x110           /* PCI Local Addr Register1 */
+#define SH4_PCIINT              0x114           /* PCI Interrupt Register */
+  #define SH4_PCIINT_MLCK         0x00008000    /* Master Lock Error */
+  #define SH4_PCIINT_TABT         0x00004000    /* Target Abort Error */
+  #define SH4_PCIINT_TRET         0x00000200    /* Target Retry Error */
+  #define SH4_PCIINT_MFDE         0x00000100    /* Master Func. Disable Error */
+  #define SH4_PCIINT_PRTY         0x00000080    /* Address Parity Error */
+  #define SH4_PCIINT_SERR         0x00000040    /* SERR Detection Error */
+  #define SH4_PCIINT_TWDP         0x00000020    /* Tgt. Write Parity Error */
+  #define SH4_PCIINT_TRDP         0x00000010    /* Tgt. Read Parity Err Det. */
+  #define SH4_PCIINT_MTABT        0x00000008    /* Master-Tgt. Abort Error */
+  #define SH4_PCIINT_MMABT        0x00000004    /* Master-Master Abort Error */
+  #define SH4_PCIINT_MWPD         0x00000002    /* Master Write PERR Detect */
+  #define SH4_PCIINT_MRPD         0x00000001    /* Master Read PERR Detect */
+#define SH4_PCIINTM             0x118           /* PCI Interrupt Mask */
+#define SH4_PCIALR              0x11C           /* Error Address Register */
+#define SH4_PCICLR              0x120           /* Error Command/Data */
+  #define SH4_PCICLR_MPIO         0x80000000
+  #define SH4_PCICLR_MDMA0        0x40000000    /* DMA0 Transfer Error */
+  #define SH4_PCICLR_MDMA1        0x20000000    /* DMA1 Transfer Error */
+  #define SH4_PCICLR_MDMA2        0x10000000    /* DMA2 Transfer Error */
+  #define SH4_PCICLR_MDMA3        0x08000000    /* DMA3 Transfer Error */
+  #define SH4_PCICLR_TGT          0x04000000    /* Target Transfer Error */
+  #define SH4_PCICLR_CMDL         0x0000000F    /* PCI Command at Error */
+#define SH4_PCIAINT             0x130           /* Arbiter Interrupt Register */
+  #define SH4_PCIAINT_MBKN        0x00002000    /* Master Broken Interrupt */
+  #define SH4_PCIAINT_TBTO        0x00001000    /* Target Bus Time Out */
+  #define SH4_PCIAINT_MBTO        0x00001000    /* Master Bus Time Out */
+  #define SH4_PCIAINT_TABT        0x00000008    /* Target Abort */
+  #define SH4_PCIAINT_MABT        0x00000004    /* Master Abort */
+  #define SH4_PCIAINT_RDPE        0x00000002    /* Read Data Parity Error */
+  #define SH4_PCIAINT_WDPE        0x00000001    /* Write Data Parity Error */
+#define SH4_PCIAINTM            0x134           /* Arbiter Int. Mask Register */
+#define SH4_PCIBMLR             0x138           /* Error Bus Master Register */
+  #define SH4_PCIBMLR_REQ4        0x00000010    /* REQ4 bus master at error */
+  #define SH4_PCIBMLR_REQ3        0x00000008    /* REQ3 bus master at error */
+  #define SH4_PCIBMLR_REQ2        0x00000004    /* REQ2 bus master at error */
+  #define SH4_PCIBMLR_REQ1        0x00000002    /* REQ1 bus master at error */
+  #define SH4_PCIBMLR_REQ0        0x00000001    /* REQ0 bus master at error */
+#define SH4_PCIDMABT            0x140           /* DMA Transfer Arb. Register */
+  #define SH4_PCIDMABT_RRBN       0x00000001    /* DMA Arbitor Round-Robin */
+#define SH4_PCIDPA0             0x180           /* DMA0 Transfer Addr. */
+#define SH4_PCIDLA0             0x184           /* DMA0 Local Addr. */
+#define SH4_PCIDTC0             0x188           /* DMA0 Transfer Cnt. */
+#define SH4_PCIDCR0             0x18C           /* DMA0 Control Register */
+  #define SH4_PCIDCR_ALGN         0x00000600    /* DMA Alignment Mode */
+  #define SH4_PCIDCR_MAST         0x00000100    /* DMA Termination Type */
+  #define SH4_PCIDCR_INTM         0x00000080    /* DMA Interrupt Done Mask*/
+  #define SH4_PCIDCR_INTS         0x00000040    /* DMA Interrupt Done Status */
+  #define SH4_PCIDCR_LHLD         0x00000020    /* Local Address Control */
+  #define SH4_PCIDCR_PHLD         0x00000010    /* PCI Address Control*/
+  #define SH4_PCIDCR_IOSEL        0x00000008    /* PCI Address Space Type */
+  #define SH4_PCIDCR_DIR          0x00000004    /* DMA Transfer Direction */
+  #define SH4_PCIDCR_STOP         0x00000002    /* Force DMA Stop */
+  #define SH4_PCIDCR_STRT         0x00000001    /* DMA Start */
+#define SH4_PCIDPA1             0x190           /* DMA1 Transfer Addr. */
+#define SH4_PCIDLA1             0x194           /* DMA1 Local Addr. */
+#define SH4_PCIDTC1             0x198           /* DMA1 Transfer Cnt. */
+#define SH4_PCIDCR1             0x19C           /* DMA1 Control Register */
+#define SH4_PCIDPA2             0x1A0           /* DMA2 Transfer Addr. */
+#define SH4_PCIDLA2             0x1A4           /* DMA2 Local Addr. */
+#define SH4_PCIDTC2             0x1A8           /* DMA2 Transfer Cnt. */
+#define SH4_PCIDCR2             0x1AC           /* DMA2 Control Register */
+#define SH4_PCIDPA3             0x1B0           /* DMA3 Transfer Addr. */
+#define SH4_PCIDLA3             0x1B4           /* DMA3 Local Addr. */
+#define SH4_PCIDTC3             0x1B8           /* DMA3 Transfer Cnt. */
+#define SH4_PCIDCR3             0x1BC           /* DMA3 Control Register */
+#define SH4_PCIPAR              0x1C0           /* PIO Address Register */
+  #define SH4_PCIPAR_CFGEN        0x80000000    /* Configuration Enable */
+  #define SH4_PCIPAR_BUSNO        0x00FF0000    /* Config. Bus Number */
+  #define SH4_PCIPAR_DEVNO        0x0000FF00    /* Config. Device Number */
+  #define SH4_PCIPAR_REGAD        0x000000FC    /* Register Address Number */
+#define SH4_PCIMBR              0x1C4           /* Memory Base Address */
+  #define SH4_PCIMBR_MASK         0xFF000000    /* Memory Space Mask */
+  #define SH4_PCIMBR_LOCK         0x00000001    /* Lock Memory Space */
+#define SH4_PCIIOBR             0x1C8           /* I/O Base Address Register */
+  #define SH4_PCIIOBR_MASK        0xFFFC0000    /* IO Space Mask */
+  #define SH4_PCIIOBR_LOCK        0x00000001    /* Lock IO Space */
+#define SH4_PCIPINT             0x1CC           /* Power Mgmnt Int. Register */
+  #define SH4_PCIPINT_D3          0x00000002    /* D3 Pwr Mgmt. Interrupt */
+  #define SH4_PCIPINT_D0          0x00000001    /* D0 Pwr Mgmt. Interrupt */
+#define SH4_PCIPINTM            0x1D0           /* Power Mgmnt Mask Register */
+#define SH4_PCICLKR             0x1D4           /* Clock Ctrl. Register */
+  #define SH4_PCICLKR_PCSTP       0x00000002    /* PCI Clock Stop */
+  #define SH4_PCICLKR_BCSTP       0x00000001    /* BCLK Clock Stop */
+/* For definitions of BCR, MCR see ... */
+#define SH4_PCIBCR1             0x1E0           /* Memory BCR1 Register */
+  #define SH4_PCIMBR0           SH4_PCIBCR1
+#define SH4_PCIBCR2             0x1E4           /* Memory BCR2 Register */
+  #define SH4_PCIMBMR0          SH4_PCIBCR2
+#define SH4_PCIWCR1             0x1E8           /* Wait Control 1 Register */
+#define SH4_PCIWCR2             0x1EC           /* Wait Control 2 Register */
+#define SH4_PCIWCR3             0x1F0           /* Wait Control 3 Register */
+  #define SH4_PCIMBR2           SH4_PCIWCR3
+#define SH4_PCIMCR              0x1F4           /* Memory Control Register */
+#define SH4_PCIBCR3             0x1f8           /* Memory BCR3 Register */
+#define SH4_PCIPCTR             0x200           /* Port Control Register */
+  #define SH4_PCIPCTR_P2EN        0x000400000   /* Port 2 Enable */
+  #define SH4_PCIPCTR_P1EN        0x000200000   /* Port 1 Enable */
+  #define SH4_PCIPCTR_P0EN        0x000100000   /* Port 0 Enable */
+  #define SH4_PCIPCTR_P2UP        0x000000020   /* Port2 Pull Up Enable */
+  #define SH4_PCIPCTR_P2IO        0x000000010   /* Port2 Output Enable */
+  #define SH4_PCIPCTR_P1UP        0x000000008   /* Port1 Pull Up Enable */
+  #define SH4_PCIPCTR_P1IO        0x000000004   /* Port1 Output Enable */
+  #define SH4_PCIPCTR_P0UP        0x000000002   /* Port0 Pull Up Enable */
+  #define SH4_PCIPCTR_P0IO        0x000000001   /* Port0 Output Enable */
+#define SH4_PCIPDTR             0x204           /* Port Data Register */
+  #define SH4_PCIPDTR_PB5         0x000000020   /* Port 5 Enable */
+  #define SH4_PCIPDTR_PB4         0x000000010   /* Port 4 Enable */
+  #define SH4_PCIPDTR_PB3         0x000000008   /* Port 3 Enable */
+  #define SH4_PCIPDTR_PB2         0x000000004   /* Port 2 Enable */
+  #define SH4_PCIPDTR_PB1         0x000000002   /* Port 1 Enable */
+  #define SH4_PCIPDTR_PB0         0x000000001   /* Port 0 Enable */
+#define SH4_PCIPDR              0x220           /* Port IO Data Register */
+
+/* Flags */
+#define SH4_PCIC_NO_RESET       0x0001
+
+/* arch/sh/kernel/drivers/pci/ops-sh4.c */
+extern struct pci_ops sh4_pci_ops;
+int sh4_pci_check_direct(void);
+int pci_fixup_pcic(void);
+
+struct sh4_pci_address_space {
+        unsigned long base;
+        unsigned long size;
+};
+
+struct sh4_pci_address_map {
+        struct sh4_pci_address_space window0;
+        struct sh4_pci_address_space window1;
+        unsigned long flags;
+};
+
+static inline void pci_write_reg(unsigned long val, unsigned long reg)
+{
+        outl(val, PCI_REG(reg));
+}
+
+static inline unsigned long pci_read_reg(unsigned long reg)
+{
+        return inl(PCI_REG(reg));
+}
+#endif /* __PCI_SH4_H */