diff options
| author | Sean Anderson <seanga2@gmail.com> | 2020-09-14 18:02:06 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2020-10-08 18:42:36 +0300 |
| commit | 0eabb2ff2316c5d95367b79debb8229e686de774 (patch) | |
| tree | 9cf7b72fab44c617e179c50a9fbca74b9b7d4fbf /doc | |
| parent | 2b5a719fc6c7794c9423443311cedad534413ff9 (diff) | |
| download | u-boot-0eabb2ff2316c5d95367b79debb8229e686de774.tar.xz | |
riscv: Add FPIOA and GPIO support for Kendryte K210
This patch adds the necessary configs and docs for FPIOA and GPIO support
on the K210.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/board/sipeed/maix.rst | 64 |
1 files changed, 62 insertions, 2 deletions
diff --git a/doc/board/sipeed/maix.rst b/doc/board/sipeed/maix.rst index 3f791b42fa..92f2d112a9 100644 --- a/doc/board/sipeed/maix.rst +++ b/doc/board/sipeed/maix.rst @@ -199,7 +199,7 @@ To run legacy images, use the ``bootm`` command: Load Address: 80000000 Entry Point: 80000000 - $ picocom -b 115200 /dev/ttyUSB0i + $ picocom -b 115200 /dev/ttyUSB0 => loady ## Ready for binary (ymodem) download to 0x80000000 at 115200 bps... C @@ -230,6 +230,66 @@ To run legacy images, use the ``bootm`` command: argv[0] = "<NULL>" Hit any key to exit ... +Pin Assignment +-------------- + +The K210 contains a Fully Programmable I/O Array (FPIOA), which can remap any of +its 256 input functions to any any of 48 output pins. The following table has +the default pin assignments for the BitM. + +===== ========== ======= +Pin Function Comment +===== ========== ======= +IO_0 JTAG_TCLK +IO_1 JTAG_TDI +IO_2 JTAG_TMS +IO_3 JTAG_TDO +IO_4 UARTHS_RX +IO_5 UARTHS_TX +IO_6 Not set +IO_7 Not set +IO_8 GPIO_0 +IO_9 GPIO_1 +IO_10 GPIO_2 +IO_11 GPIO_3 +IO_12 GPIO_4 Green LED +IO_13 GPIO_5 Red LED +IO_14 GPIO_6 Blue LED +IO_15 GPIO_7 +IO_16 GPIOHS_0 ISP +IO_17 GPIOHS_1 +IO_18 I2S0_SCLK MIC CLK +IO_19 I2S0_WS MIC WS +IO_20 I2S0_IN_D0 MIC SD +IO_21 GPIOHS_5 +IO_22 GPIOHS_6 +IO_23 GPIOHS_7 +IO_24 GPIOHS_8 +IO_25 GPIOHS_9 +IO_26 SPI1_D1 MMC MISO +IO_27 SPI1_SCLK MMC CLK +IO_28 SPI1_D0 MMC MOSI +IO_29 GPIOHS_13 MMC CS +IO_30 GPIOHS_14 +IO_31 GPIOHS_15 +IO_32 GPIOHS_16 +IO_33 GPIOHS_17 +IO_34 GPIOHS_18 +IO_35 GPIOHS_19 +IO_36 GPIOHS_20 Panel CS +IO_37 GPIOHS_21 Panel RST +IO_38 GPIOHS_22 Panel DC +IO_39 SPI0_SCK Panel WR +IO_40 SCCP_SDA +IO_41 SCCP_SCLK +IO_42 DVP_RST +IO_43 DVP_VSYNC +IO_44 DVP_PWDN +IO_45 DVP_HSYNC +IO_46 DVP_XCLK +IO_47 DVP_PCLK +===== ========== ======= + Over- and Under-clocking ------------------------ @@ -408,7 +468,7 @@ Address Size Description 0x8801C000 0x1000 riscv priv spec 1.9 config 0x8801D000 0x2000 flattened device tree (contains only addresses and interrupts) -0x8801f000 0x1000 credits +0x8801F000 0x1000 credits ========== ========= =========== Links |