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 */ 80