| offset | name | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0x0c | uarts | UART1 | UART1 | UART0 | UART0 | FUART | FUART | ||||||||||
| 0x0 | 0x0 | 0x0 - disabled? | |||||||||||||||
| 0x1 | 0x1 | 0x1 - fuart | |||||||||||||||
| 0x2 - FUART | 0x2 - FUART | 0x2 | |||||||||||||||
| 0x3 | 0x3 | 0x3 | |||||||||||||||
| 0x18 | sr | SR I2C? | SR I2C? | SR | SR | SR | |||||||||||
| 0x1c | pwm | PWM7 | PWM7 | PWM6 | PWM6 | PWM5 | PWM5 | PWM4 | PWM4 | PWM3 | PWM3 | PWM2 | PWM2 | PWM1 | PWM1 | PWM0 | PWM0 |
| 0x0 | 0x0 | 0x0 | 0x0 | 0x0 | 0x0 | 0x0 | 0x0 | ||||||||||
| 0x1 | 0x1 | 0x1 | 0x1 | 0x1 | 0x1 | 0x1 | 0x1 | ||||||||||
| 0x2 - spi0_do | 0x2 - spi0_di | 0x2 - spi0_ck | 0x2 - spi0_cz | 0x2 - fuart_rts | 0x2 - fuart_cts | 0x2 | 0x2 | ||||||||||
| 0x03 | 0x3 | 0x3 | 0x3 | 0x3 | 0x3 | 0x3 - fuart_tx | 0x3 -fuart_rx | ||||||||||
| 0x20 | sd/sdio/nand | SDIO | |||||||||||||||
| 0x0 | |||||||||||||||||
| 0x1 - sdio | |||||||||||||||||
| 0x24 | i2c | I2C1 | I2C1 | IC20 | IC20 | ||||||||||||
| 0x0 | 0x0 | ||||||||||||||||
| 0x1 - i2c1 | 0x1 - i2c0 | ||||||||||||||||
| 0x30 | spi | SPI1 | SPI1 | SPI0 | SPI0 | ||||||||||||
| 0x0 | |||||||||||||||||
| 0x1 | |||||||||||||||||
| 0x2 | |||||||||||||||||
| 0x3 - fuart | |||||||||||||||||
| 0xcc | FUART conf | pull up | pull up | pull enable | pull enable | ie? | ie? | drive | drive | ||||||||
| 0xd4 | drive strength | UART1 | UART1 | UART0 | UART0 | PWM0 | |||||||||||
| 0x140 | set all pins as input | ||||||||||||||||
| 0x14c | uart sel | UART1 | UART1 | UART1 | UART1 | UART0 | UART0 | UART0 | UART0 | FUART | FUART | FUART | FUART | PM_UART | PM_UART | PM_UART | PM_UART |
* These might be internal dram pins
* 0xe0 - ipl sets to 0xffff
* 0xe4 - ipl sets to 0x3
* 0xe8 - ipl sets to 0xffff
* 0xec - ipl sets to 0x3
* 0xf0 - ipl sets to 0
* 0xf4 - ipl sets to 0
Wrong … seems resetting the sensor pads.
/*
* There seems to be one main pinmux block in the chip at 0x1f203C00.
* It looks like it controls the pins on a group basis and not by
* selecting a function per pin.
*
* A pin becomes GPIO if all of the different functions that can be applied to the
* pin are disabled.
*
* 0x24 - I2C
* For mercury5 the i2c1 setting here doesn't seem to actually
* do anything
*
* 0x3c - JTAG, ETHERNET (TTL, CCIR)
* 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 0
* ? | 0 | ? | 0 | ? | 0 | ? | 0 | ETHERNET | JTAG
* 0x0 - disabled? | 0x0 - disabled ?
* | 0x1 - fuart
* | 0x2 - spi0
* | 0x3 - ??
*
* - Toggling bits doesn't stop ethernet working :/
*
* 0x48 TEST_IN, TEST_OUT
*
* 0xC0 - nand drive
* 0xC4 - nand pull up
*
* 0xC8 - SD/SDIO pull up/down, drive strength? rst : 0x0, can write 0x1f3f
* 12 - 8 | 5 - 0
* pull en? | drv: 0?
* d3, d2, d1, d0, cmd | clk, d3, d2, d1, d0, cmd
*
*
* Mercury 5 notes:
*
* Offsets from dashcam app
*
*
* 0x3c - I2S/DMIC/TTL/CCIR
* 0x4c - EMMC
* 0x50 - SPI2/SD30/RGB_8B/RGB_24B/
*
* 0x54 - Sensor config
*
* setting to 0x4000 makes another i2c device visible on mirrorcam
*
* 15 - 13 | 12 | 11 - 10 | 9 - 8 | 6 - 4 | 2 - 0
* sr1 mipi mode | sr1 bt656 mode | sr0 parallel mode | sr0 mipi mode | sr0 bt656 mode | sr0 bt601 mode
* | | | | |
*
* 0x58 - TX_MIPI
* 1 - 0
* tx mipi mode
*
* reset - 0x900
*
* 11 - 10 | 9 - 8 | 1 - 0
* i2c3 | i2c2 | tx mipi
*
* 0x5c - I2C1_DUAL
*
* default 0x42
* can write 0xf7
*
* | 2 - 1
* | i2c1 mode?
*
*/