b71bb86398
Add support for MCB over PCI devices. Both PCI attached on-board Chameleon FPGAs as well as CompactPCI based MCB carrier cards are supported with this driver. Signed-off-by: Johannes Thumshirn <johannes.thumshirn@men.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
118 lines
3 KiB
C
118 lines
3 KiB
C
#ifndef __MCB_INTERNAL
|
|
#define __MCB_INTERNAL
|
|
|
|
#include <linux/types.h>
|
|
|
|
#define PCI_VENDOR_ID_MEN 0x1a88
|
|
#define PCI_DEVICE_ID_MEN_CHAMELEON 0x4d45
|
|
#define CHAMELEON_FILENAME_LEN 12
|
|
#define CHAMELEONV2_MAGIC 0xabce
|
|
|
|
enum chameleon_descriptor_type {
|
|
CHAMELEON_DTYPE_GENERAL = 0x0,
|
|
CHAMELEON_DTYPE_BRIDGE = 0x1,
|
|
CHAMELEON_DTYPE_CPU = 0x2,
|
|
CHAMELEON_DTYPE_BAR = 0x3,
|
|
CHAMELEON_DTYPE_END = 0xf,
|
|
};
|
|
|
|
enum chameleon_bus_type {
|
|
CHAMELEON_BUS_WISHBONE,
|
|
CHAMELEON_BUS_AVALON,
|
|
CHAMELEON_BUS_LPC,
|
|
CHAMELEON_BUS_ISA,
|
|
};
|
|
|
|
/**
|
|
* struct chameleon_fpga_header
|
|
*
|
|
* @revision: Revison of Chameleon table in FPGA
|
|
* @model: Chameleon table model ASCII char
|
|
* @minor: Revision minor
|
|
* @bus_type: Bus type (usually %CHAMELEON_BUS_WISHBONE)
|
|
* @magic: Chameleon header magic number (0xabce for version 2)
|
|
* @reserved: Reserved
|
|
* @filename: Filename of FPGA bitstream
|
|
*/
|
|
struct chameleon_fpga_header {
|
|
u8 revision;
|
|
char model;
|
|
u8 minor;
|
|
u8 bus_type;
|
|
u16 magic;
|
|
u16 reserved;
|
|
/* This one has no '\0' at the end!!! */
|
|
char filename[CHAMELEON_FILENAME_LEN];
|
|
} __packed;
|
|
#define HEADER_MAGIC_OFFSET 0x4
|
|
|
|
/**
|
|
* struct chameleon_gdd - Chameleon General Device Descriptor
|
|
*
|
|
* @irq: the position in the FPGA's IRQ controller vector
|
|
* @rev: the revision of the variant's implementation
|
|
* @var: the variant of the IP core
|
|
* @dev: the device the IP core is
|
|
* @dtype: device descriptor type
|
|
* @bar: BAR offset that must be added to module offset
|
|
* @inst: the instance number of the device, 0 is first instance
|
|
* @group: the group the device belongs to (0 = no group)
|
|
* @reserved: reserved
|
|
* @offset: beginning of the address window of desired module
|
|
* @size: size of the module's address window
|
|
*/
|
|
struct chameleon_gdd {
|
|
__le32 reg1;
|
|
__le32 reg2;
|
|
__le32 offset;
|
|
__le32 size;
|
|
|
|
} __packed;
|
|
|
|
/* GDD Register 1 fields */
|
|
#define GDD_IRQ(x) ((x) & 0x1f)
|
|
#define GDD_REV(x) (((x) >> 5) & 0x3f)
|
|
#define GDD_VAR(x) (((x) >> 11) & 0x3f)
|
|
#define GDD_DEV(x) (((x) >> 18) & 0x3ff)
|
|
#define GDD_DTY(x) (((x) >> 28) & 0xf)
|
|
|
|
/* GDD Register 2 fields */
|
|
#define GDD_BAR(x) ((x) & 0x7)
|
|
#define GDD_INS(x) (((x) >> 3) & 0x3f)
|
|
#define GDD_GRP(x) (((x) >> 9) & 0x3f)
|
|
|
|
/**
|
|
* struct chameleon_bdd - Chameleon Bridge Device Descriptor
|
|
*
|
|
* @irq: the position in the FPGA's IRQ controller vector
|
|
* @rev: the revision of the variant's implementation
|
|
* @var: the variant of the IP core
|
|
* @dev: the device the IP core is
|
|
* @dtype: device descriptor type
|
|
* @bar: BAR offset that must be added to module offset
|
|
* @inst: the instance number of the device, 0 is first instance
|
|
* @dbar: destination bar from the bus _behind_ the bridge
|
|
* @chamoff: offset within the BAR of the source bus
|
|
* @offset:
|
|
* @size:
|
|
*/
|
|
struct chameleon_bdd {
|
|
unsigned int irq:6;
|
|
unsigned int rev:6;
|
|
unsigned int var:6;
|
|
unsigned int dev:10;
|
|
unsigned int dtype:4;
|
|
unsigned int bar:3;
|
|
unsigned int inst:6;
|
|
unsigned int dbar:3;
|
|
unsigned int group:6;
|
|
unsigned int reserved:14;
|
|
u32 chamoff;
|
|
u32 offset;
|
|
u32 size;
|
|
} __packed;
|
|
|
|
int chameleon_parse_cells(struct mcb_bus *bus, phys_addr_t mapbase,
|
|
void __iomem *base);
|
|
|
|
#endif
|