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1  /*
2   * dm355evm_msp.h - support MSP430 microcontroller on DM355EVM board
3   */
4  #ifndef __LINUX_I2C_DM355EVM_MSP
5  #define __LINUX_I2C_DM355EVM_MSP
6  
7  /*
8   * Written against Spectrum's writeup for the A4 firmware revision,
9   * and tweaked to match source and rev D2 schematics by removing CPLD
10   * and NOR flash hooks (which were last appropriate in rev B boards).
11   *
12   * Note that the firmware supports a flavor of write posting ... to be
13   * sure a write completes, issue another read or write.
14   */
15  
16  /* utilities to access "registers" emulated by msp430 firmware */
17  extern int dm355evm_msp_write(u8 value, u8 reg);
18  extern int dm355evm_msp_read(u8 reg);
19  
20  
21  /* command/control registers */
22  #define DM355EVM_MSP_COMMAND		0x00
23  #	define MSP_COMMAND_NULL		0
24  #	define MSP_COMMAND_RESET_COLD	1
25  #	define MSP_COMMAND_RESET_WARM	2
26  #	define MSP_COMMAND_RESET_WARM_I	3
27  #	define MSP_COMMAND_POWEROFF	4
28  #	define MSP_COMMAND_IR_REINIT	5
29  #define DM355EVM_MSP_STATUS		0x01
30  #	define MSP_STATUS_BAD_OFFSET	BIT(0)
31  #	define MSP_STATUS_BAD_COMMAND	BIT(1)
32  #	define MSP_STATUS_POWER_ERROR	BIT(2)
33  #	define MSP_STATUS_RXBUF_OVERRUN	BIT(3)
34  #define DM355EVM_MSP_RESET		0x02	/* 0 bits == in reset */
35  #	define MSP_RESET_DC5		BIT(0)
36  #	define MSP_RESET_TVP5154	BIT(2)
37  #	define MSP_RESET_IMAGER		BIT(3)
38  #	define MSP_RESET_ETHERNET	BIT(4)
39  #	define MSP_RESET_SYS		BIT(5)
40  #	define MSP_RESET_AIC33		BIT(7)
41  
42  /* GPIO registers ... bit patterns mostly match the source MSP ports */
43  #define DM355EVM_MSP_LED		0x03	/* active low (MSP P4) */
44  #define DM355EVM_MSP_SWITCH1		0x04	/* (MSP P5, masked) */
45  #	define MSP_SWITCH1_SW6_1	BIT(0)
46  #	define MSP_SWITCH1_SW6_2	BIT(1)
47  #	define MSP_SWITCH1_SW6_3	BIT(2)
48  #	define MSP_SWITCH1_SW6_4	BIT(3)
49  #	define MSP_SWITCH1_J1		BIT(4)	/* NTSC/PAL */
50  #	define MSP_SWITCH1_MSP_INT	BIT(5)	/* active low */
51  #define DM355EVM_MSP_SWITCH2		0x05	/* (MSP P6, masked) */
52  #	define MSP_SWITCH2_SW10		BIT(3)
53  #	define MSP_SWITCH2_SW11		BIT(4)
54  #	define MSP_SWITCH2_SW12		BIT(5)
55  #	define MSP_SWITCH2_SW13		BIT(6)
56  #	define MSP_SWITCH2_SW14		BIT(7)
57  #define DM355EVM_MSP_SDMMC		0x06	/* (MSP P2, masked) */
58  #	define MSP_SDMMC_0_WP		BIT(1)
59  #	define MSP_SDMMC_0_CD		BIT(2)	/* active low */
60  #	define MSP_SDMMC_1_WP		BIT(3)
61  #	define MSP_SDMMC_1_CD		BIT(4)	/* active low */
62  #define DM355EVM_MSP_FIRMREV		0x07	/* not a GPIO (out of order) */
63  #define DM355EVM_MSP_VIDEO_IN		0x08	/* (MSP P3, masked) */
64  #	define MSP_VIDEO_IMAGER		BIT(7)	/* low == tvp5146 */
65  
66  /* power supply registers are currently omitted */
67  
68  /* RTC registers */
69  #define DM355EVM_MSP_RTC_0		0x12	/* LSB */
70  #define DM355EVM_MSP_RTC_1		0x13
71  #define DM355EVM_MSP_RTC_2		0x14
72  #define DM355EVM_MSP_RTC_3		0x15	/* MSB */
73  
74  /* input event queue registers; code == ((HIGH << 8) | LOW) */
75  #define DM355EVM_MSP_INPUT_COUNT	0x16	/* decrement by reading LOW */
76  #define DM355EVM_MSP_INPUT_HIGH		0x17
77  #define DM355EVM_MSP_INPUT_LOW		0x18
78  
79  #endif /* __LINUX_I2C_DM355EVM_MSP */
80