blob: 4398a6cdcf53cb886527c263c6c13c10accda195 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
#ifndef __CPM_H
#define __CPM_H
#include <linux/compiler.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/of.h>
/*
* SPI Parameter RAM common to QE and CPM.
*/
struct spi_pram {
__be16 rbase; /* Rx Buffer descriptor base address */
__be16 tbase; /* Tx Buffer descriptor base address */
u8 rfcr; /* Rx function code */
u8 tfcr; /* Tx function code */
__be16 mrblr; /* Max receive buffer length */
__be32 rstate; /* Internal */
__be32 rdp; /* Internal */
__be16 rbptr; /* Internal */
__be16 rbc; /* Internal */
__be32 rxtmp; /* Internal */
__be32 tstate; /* Internal */
__be32 tdp; /* Internal */
__be16 tbptr; /* Internal */
__be16 tbc; /* Internal */
__be32 txtmp; /* Internal */
__be32 res; /* Tx temp. */
__be16 rpbase; /* Relocation pointer (CPM1 only) */
__be16 res1; /* Reserved */
};
/*
* USB Controller pram common to QE and CPM.
*/
struct usb_ctlr {
u8 usb_usmod;
u8 usb_usadr;
u8 usb_uscom;
u8 res1[1];
__be16 usb_usep[4];
u8 res2[4];
__be16 usb_usber;
u8 res3[2];
__be16 usb_usbmr;
u8 res4[1];
u8 usb_usbs;
/* Fields down below are QE-only */
__be16 usb_ussft;
u8 res5[2];
__be16 usb_usfrn;
u8 res6[0x22];
} __attribute__ ((packed));
/*
* Function code bits, usually generic to devices.
*/
#ifdef CONFIG_CPM1
#define CPMFCR_GBL ((u_char)0x00) /* Flag doesn't exist in CPM1 */
#define CPMFCR_TC2 ((u_char)0x00) /* Flag doesn't exist in CPM1 */
#define CPMFCR_DTB ((u_char)0x00) /* Flag doesn't exist in CPM1 */
#define CPMFCR_BDB ((u_char)0x00) /* Flag doesn't exist in CPM1 */
#else
#define CPMFCR_GBL ((u_char)0x20) /* Set memory snooping */
#define CPMFCR_TC2 ((u_char)0x04) /* Transfer code 2 value */
#define CPMFCR_DTB ((u_char)0x02) /* Use local bus for data when set */
#define CPMFCR_BDB ((u_char)0x01) /* Use local bus for BD when set */
#endif
#define CPMFCR_EB ((u_char)0x10) /* Set big endian byte order */
/* Opcodes common to CPM1 and CPM2
*/
#define CPM_CR_INIT_TRX ((ushort)0x0000)
#define CPM_CR_INIT_RX ((ushort)0x0001)
#define CPM_CR_INIT_TX ((ushort)0x0002)
#define CPM_CR_HUNT_MODE ((ushort)0x0003)
#define CPM_CR_STOP_TX ((ushort)0x0004)
#define CPM_CR_GRA_STOP_TX ((ushort)0x0005)
#define CPM_CR_RESTART_TX ((ushort)0x0006)
#define CPM_CR_CLOSE_RX_BD ((ushort)0x0007)
#define CPM_CR_SET_GADDR ((ushort)0x0008)
#define CPM_CR_SET_TIMER ((ushort)0x0008)
#define CPM_CR_STOP_IDMA ((ushort)0x000b)
/* Buffer descriptors used by many of the CPM protocols. */
typedef struct cpm_buf_desc {
ushort cbd_sc; /* Status and Control */
ushort cbd_datlen; /* Data length in buffer */
uint cbd_bufaddr; /* Buffer address in host memory */
} cbd_t;
/* Buffer descriptor control/status used by serial
*/
#define BD_SC_EMPTY (0x8000) /* Receive is empty */
#define BD_SC_READY (0x8000) /* Transmit is ready */
#define BD_SC_WRAP (0x2000) /* Last buffer descriptor */
#define BD_SC_INTRPT (0x1000) /* Interrupt on change */
#define BD_SC_LAST (0x0800) /* Last buffer in frame */
#define BD_SC_TC (0x0400) /* Transmit CRC */
#define BD_SC_CM (0x0200) /* Continuous mode */
#define BD_SC_ID (0x0100) /* Rec'd too many idles */
#define BD_SC_P (0x0100) /* xmt preamble */
#define BD_SC_BR (0x0020) /* Break received */
#define BD_SC_FR (0x0010) /* Framing error */
#define BD_SC_PR (0x0008) /* Parity error */
#define BD_SC_NAK (0x0004) /* NAK - did not respond */
#define BD_SC_OV (0x0002) /* Overrun */
#define BD_SC_UN (0x0002) /* Underrun */
#define BD_SC_CD (0x0001) /* */
#define BD_SC_CL (0x0001) /* Collision */
/* Buffer descriptor control/status used by Ethernet receive.
* Common to SCC and FCC.
*/
#define BD_ENET_RX_EMPTY (0x8000)
#define BD_ENET_RX_WRAP (0x2000)
#define BD_ENET_RX_INTR (0x1000)
#define BD_ENET_RX_LAST (0x0800)
#define BD_ENET_RX_FIRST (0x0400)
#define BD_ENET_RX_MISS (0x0100)
#define BD_ENET_RX_BC (0x0080) /* FCC Only */
#define BD_ENET_RX_MC (0x0040) /* FCC Only */
#define BD_ENET_RX_LG (0x0020)
#define BD_ENET_RX_NO (0x0010)
#define BD_ENET_RX_SH (0x0008)
#define BD_ENET_RX_CR (0x0004)
#define BD_ENET_RX_OV (0x0002)
#define BD_ENET_RX_CL (0x0001)
#define BD_ENET_RX_STATS (0x01ff) /* All status bits */
/* Buffer descriptor control/status used by Ethernet transmit.
* Common to SCC and FCC.
*/
#define BD_ENET_TX_READY (0x8000)
#define BD_ENET_TX_PAD (0x4000)
#define BD_ENET_TX_WRAP (0x2000)
#define BD_ENET_TX_INTR (0x1000)
#define BD_ENET_TX_LAST (0x0800)
#define BD_ENET_TX_TC (0x0400)
#define BD_ENET_TX_DEF (0x0200)
#define BD_ENET_TX_HB (0x0100)
#define BD_ENET_TX_LC (0x0080)
#define BD_ENET_TX_RL (0x0040)
#define BD_ENET_TX_RCMASK (0x003c)
#define BD_ENET_TX_UN (0x0002)
#define BD_ENET_TX_CSL (0x0001)
#define BD_ENET_TX_STATS (0x03ff) /* All status bits */
/* Buffer descriptor control/status used by Transparent mode SCC.
*/
#define BD_SCC_TX_LAST (0x0800)
/* Buffer descriptor control/status used by I2C.
*/
#define BD_I2C_START (0x0400)
int cpm_muram_init(void);
#if defined(CONFIG_CPM) || defined(CONFIG_QUICC_ENGINE)
unsigned long cpm_muram_alloc(unsigned long size, unsigned long align);
int cpm_muram_free(unsigned long offset);
unsigned long cpm_muram_alloc_fixed(unsigned long offset, unsigned long size);
void __iomem *cpm_muram_addr(unsigned long offset);
unsigned long cpm_muram_offset(void __iomem *addr);
dma_addr_t cpm_muram_dma(void __iomem *addr);
#else
static inline unsigned long cpm_muram_alloc(unsigned long size,
unsigned long align)
{
return -ENOSYS;
}
static inline int cpm_muram_free(unsigned long offset)
{
return -ENOSYS;
}
static inline unsigned long cpm_muram_alloc_fixed(unsigned long offset,
unsigned long size)
{
return -ENOSYS;
}
static inline void __iomem *cpm_muram_addr(unsigned long offset)
{
return NULL;
}
static inline unsigned long cpm_muram_offset(void __iomem *addr)
{
return -ENOSYS;
}
static inline dma_addr_t cpm_muram_dma(void __iomem *addr)
{
return 0;
}
#endif /* defined(CONFIG_CPM) || defined(CONFIG_QUICC_ENGINE) */
#ifdef CONFIG_CPM
int cpm_command(u32 command, u8 opcode);
#else
static inline int cpm_command(u32 command, u8 opcode)
{
return -ENOSYS;
}
#endif /* CONFIG_CPM */
int cpm2_gpiochip_add32(struct device_node *np);
#endif
|
