diff options
Diffstat (limited to 'include/asm-mips/mach-excite')
-rw-r--r-- | include/asm-mips/mach-excite/excite_fpga.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/include/asm-mips/mach-excite/excite_fpga.h b/include/asm-mips/mach-excite/excite_fpga.h new file mode 100644 index 000000000000..38fcda703a0b --- /dev/null +++ b/include/asm-mips/mach-excite/excite_fpga.h | |||
@@ -0,0 +1,80 @@ | |||
1 | #ifndef EXCITE_FPGA_H_INCLUDED | ||
2 | #define EXCITE_FPGA_H_INCLUDED | ||
3 | |||
4 | |||
5 | /** | ||
6 | * Adress alignment of the individual FPGA bytes. | ||
7 | * The address arrangement of the individual bytes of the FPGA is two | ||
8 | * byte aligned at the embedded MK2 platform. | ||
9 | */ | ||
10 | #ifdef EXCITE_CCI_FPGA_MK2 | ||
11 | typedef unsigned char excite_cci_fpga_align_t __attribute__ ((aligned(2))); | ||
12 | #else | ||
13 | typedef unsigned char excite_cci_fpga_align_t; | ||
14 | #endif | ||
15 | |||
16 | |||
17 | /** | ||
18 | * Size of Dual Ported RAM. | ||
19 | */ | ||
20 | #define EXCITE_DPR_SIZE 263 | ||
21 | |||
22 | |||
23 | /** | ||
24 | * Size of Reserved Status Fields in Dual Ported RAM. | ||
25 | */ | ||
26 | #define EXCITE_DPR_STATUS_SIZE 7 | ||
27 | |||
28 | |||
29 | |||
30 | /** | ||
31 | * FPGA. | ||
32 | * Hardware register layout of the FPGA interface. The FPGA must accessed | ||
33 | * byte wise solely. | ||
34 | * @see EXCITE_CCI_DPR_MK2 | ||
35 | */ | ||
36 | typedef struct excite_fpga { | ||
37 | |||
38 | /** | ||
39 | * Dual Ported RAM. | ||
40 | */ | ||
41 | excite_cci_fpga_align_t dpr[EXCITE_DPR_SIZE]; | ||
42 | |||
43 | /** | ||
44 | * Status. | ||
45 | */ | ||
46 | excite_cci_fpga_align_t status[EXCITE_DPR_STATUS_SIZE]; | ||
47 | |||
48 | #ifdef EXCITE_CCI_FPGA_MK2 | ||
49 | /** | ||
50 | * RM9000 Interrupt. | ||
51 | * Write access initiates interrupt at the RM9000 (MIPS) processor of the eXcite. | ||
52 | */ | ||
53 | excite_cci_fpga_align_t rm9k_int; | ||
54 | #else | ||
55 | /** | ||
56 | * MK2 Interrupt. | ||
57 | * Write access initiates interrupt at the ARM processor of the MK2. | ||
58 | */ | ||
59 | excite_cci_fpga_align_t mk2_int; | ||
60 | |||
61 | excite_cci_fpga_align_t gap[0x1000-0x10f]; | ||
62 | |||
63 | /** | ||
64 | * IRQ Source/Acknowledge. | ||
65 | */ | ||
66 | excite_cci_fpga_align_t rm9k_irq_src; | ||
67 | |||
68 | /** | ||
69 | * IRQ Mask. | ||
70 | * Set bits enable the related interrupt. | ||
71 | */ | ||
72 | excite_cci_fpga_align_t rm9k_irq_mask; | ||
73 | #endif | ||
74 | |||
75 | |||
76 | } excite_fpga; | ||
77 | |||
78 | |||
79 | |||
80 | #endif /* ndef EXCITE_FPGA_H_INCLUDED */ | ||