xref: /openbmc/linux/include/linux/smc91x.h (revision b2441318)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __SMC91X_H__
3 #define __SMC91X_H__
4 
5 /*
6  * These bits define which access sizes a platform can support, rather
7  * than the maximal access size.  So, if your platform can do 16-bit
8  * and 32-bit accesses to the SMC91x device, but not 8-bit, set both
9  * SMC91X_USE_16BIT and SMC91X_USE_32BIT.
10  *
11  * The SMC91x driver requires at least one of SMC91X_USE_8BIT or
12  * SMC91X_USE_16BIT to be supported - just setting SMC91X_USE_32BIT is
13  * an invalid configuration.
14  */
15 #define SMC91X_USE_8BIT (1 << 0)
16 #define SMC91X_USE_16BIT (1 << 1)
17 #define SMC91X_USE_32BIT (1 << 2)
18 
19 #define SMC91X_NOWAIT		(1 << 3)
20 
21 /* two bits for IO_SHIFT, let's hope later designs will keep this sane */
22 #define SMC91X_IO_SHIFT_0	(0 << 4)
23 #define SMC91X_IO_SHIFT_1	(1 << 4)
24 #define SMC91X_IO_SHIFT_2	(2 << 4)
25 #define SMC91X_IO_SHIFT_3	(3 << 4)
26 #define SMC91X_IO_SHIFT(x)	(((x) >> 4) & 0x3)
27 
28 #define SMC91X_USE_DMA		(1 << 6)
29 
30 #define RPC_LED_100_10	(0x00)	/* LED = 100Mbps OR's with 10Mbps link detect */
31 #define RPC_LED_RES	(0x01)	/* LED = Reserved */
32 #define RPC_LED_10	(0x02)	/* LED = 10Mbps link detect */
33 #define RPC_LED_FD	(0x03)	/* LED = Full Duplex Mode */
34 #define RPC_LED_TX_RX	(0x04)	/* LED = TX or RX packet occurred */
35 #define RPC_LED_100	(0x05)	/* LED = 100Mbps link detect */
36 #define RPC_LED_TX	(0x06)	/* LED = TX packet occurred */
37 #define RPC_LED_RX	(0x07)	/* LED = RX packet occurred */
38 
39 struct smc91x_platdata {
40 	unsigned long flags;
41 	unsigned char leda;
42 	unsigned char ledb;
43 	bool pxa_u16_align4;	/* PXA buggy u16 writes on 4*n+2 addresses */
44 };
45 
46 #endif /* __SMC91X_H__ */
47