4 #include <linux/compiler.h>
5 #include <linux/types.h>
7 /* Opcodes common to CPM1 and CPM2
9 #define CPM_CR_INIT_TRX ((ushort)0x0000)
10 #define CPM_CR_INIT_RX ((ushort)0x0001)
11 #define CPM_CR_INIT_TX ((ushort)0x0002)
12 #define CPM_CR_HUNT_MODE ((ushort)0x0003)
13 #define CPM_CR_STOP_TX ((ushort)0x0004)
14 #define CPM_CR_GRA_STOP_TX ((ushort)0x0005)
15 #define CPM_CR_RESTART_TX ((ushort)0x0006)
16 #define CPM_CR_CLOSE_RX_BD ((ushort)0x0007)
17 #define CPM_CR_SET_GADDR ((ushort)0x0008)
18 #define CPM_CR_SET_TIMER ((ushort)0x0008)
19 #define CPM_CR_STOP_IDMA ((ushort)0x000b)
21 /* Buffer descriptors used by many of the CPM protocols. */
22 typedef struct cpm_buf_desc {
23 ushort cbd_sc; /* Status and Control */
24 ushort cbd_datlen; /* Data length in buffer */
25 uint cbd_bufaddr; /* Buffer address in host memory */
28 /* Buffer descriptor control/status used by serial
31 #define BD_SC_EMPTY (0x8000) /* Receive is empty */
32 #define BD_SC_READY (0x8000) /* Transmit is ready */
33 #define BD_SC_WRAP (0x2000) /* Last buffer descriptor */
34 #define BD_SC_INTRPT (0x1000) /* Interrupt on change */
35 #define BD_SC_LAST (0x0800) /* Last buffer in frame */
36 #define BD_SC_TC (0x0400) /* Transmit CRC */
37 #define BD_SC_CM (0x0200) /* Continous mode */
38 #define BD_SC_ID (0x0100) /* Rec'd too many idles */
39 #define BD_SC_P (0x0100) /* xmt preamble */
40 #define BD_SC_BR (0x0020) /* Break received */
41 #define BD_SC_FR (0x0010) /* Framing error */
42 #define BD_SC_PR (0x0008) /* Parity error */
43 #define BD_SC_NAK (0x0004) /* NAK - did not respond */
44 #define BD_SC_OV (0x0002) /* Overrun */
45 #define BD_SC_UN (0x0002) /* Underrun */
46 #define BD_SC_CD (0x0001) /* */
47 #define BD_SC_CL (0x0001) /* Collision */
49 /* Buffer descriptor control/status used by Ethernet receive.
50 * Common to SCC and FCC.
52 #define BD_ENET_RX_EMPTY (0x8000)
53 #define BD_ENET_RX_WRAP (0x2000)
54 #define BD_ENET_RX_INTR (0x1000)
55 #define BD_ENET_RX_LAST (0x0800)
56 #define BD_ENET_RX_FIRST (0x0400)
57 #define BD_ENET_RX_MISS (0x0100)
58 #define BD_ENET_RX_BC (0x0080) /* FCC Only */
59 #define BD_ENET_RX_MC (0x0040) /* FCC Only */
60 #define BD_ENET_RX_LG (0x0020)
61 #define BD_ENET_RX_NO (0x0010)
62 #define BD_ENET_RX_SH (0x0008)
63 #define BD_ENET_RX_CR (0x0004)
64 #define BD_ENET_RX_OV (0x0002)
65 #define BD_ENET_RX_CL (0x0001)
66 #define BD_ENET_RX_STATS (0x01ff) /* All status bits */
68 /* Buffer descriptor control/status used by Ethernet transmit.
69 * Common to SCC and FCC.
71 #define BD_ENET_TX_READY (0x8000)
72 #define BD_ENET_TX_PAD (0x4000)
73 #define BD_ENET_TX_WRAP (0x2000)
74 #define BD_ENET_TX_INTR (0x1000)
75 #define BD_ENET_TX_LAST (0x0800)
76 #define BD_ENET_TX_TC (0x0400)
77 #define BD_ENET_TX_DEF (0x0200)
78 #define BD_ENET_TX_HB (0x0100)
79 #define BD_ENET_TX_LC (0x0080)
80 #define BD_ENET_TX_RL (0x0040)
81 #define BD_ENET_TX_RCMASK (0x003c)
82 #define BD_ENET_TX_UN (0x0002)
83 #define BD_ENET_TX_CSL (0x0001)
84 #define BD_ENET_TX_STATS (0x03ff) /* All status bits */
86 /* Buffer descriptor control/status used by Transparent mode SCC.
88 #define BD_SCC_TX_LAST (0x0800)
90 /* Buffer descriptor control/status used by I2C.
92 #define BD_I2C_START (0x0400)
94 int cpm_muram_init(void);
95 unsigned long cpm_muram_alloc(unsigned long size, unsigned long align);
96 int cpm_muram_free(unsigned long offset);
97 unsigned long cpm_muram_alloc_fixed(unsigned long offset, unsigned long size);
98 void __iomem *cpm_muram_addr(unsigned long offset);
99 dma_addr_t cpm_muram_dma(void __iomem *addr);
100 int cpm_command(u32 command, u8 opcode);