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 */
17extern int dm355evm_msp_write(u8 value, u8 reg);
18extern 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 */