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