@@ -27,6 +27,9 @@ config NR_CPUS
config NR_DRAM_BANKS
default 3
+config SF_DEFAULT_BUS
+ default 3
+
config BOARD_SPECIFIC_OPTIONS
def_bool y
select GENERIC_RISCV
@@ -45,4 +48,13 @@ config BOARD_SPECIFIC_OPTIONS
imply RESET_SYSCON
imply SYSRESET
imply SYSRESET_SYSCON
+ imply PINCTRL
+ imply PINCONF
+ imply PINCTRL_K210
+ imply DM_GPIO
+ imply DWAPB_GPIO
+ imply SIFIVE_GPIO
+ imply CMD_GPIO
+ imply LED
+ imply LED_GPIO
endif
@@ -132,7 +132,7 @@ 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
@@ -163,6 +163,66 @@ 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 GPIOHS_1
+IO_7 GPIOHS_2
+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_3
+IO_18 I2S0_SCLK MIC CLK
+IO_19 I2S0_WS MIC WS
+IO_20 I2S0_IN_D0 MIC SD
+IO_21 GPIOHS_4
+IO_22 GPIOHS_5
+IO_23 GPIOHS_6
+IO_24 GPIOHS_7
+IO_25 GPIOHS_8
+IO_26 SPI1_D1 MMC MISO
+IO_27 SPI1_SCLK MMC CLK
+IO_28 SPI1_D0 MMC MOSI
+IO_29 GPIOHS_31 MMC CS
+IO_30 GPIOHS_9
+IO_31 GPIOHS_10
+IO_32 GPIOHS_11
+IO_33 GPIOHS_12
+IO_34 GPIOHS_13
+IO_35 GPIOHS_14
+IO_36 GPIOHS_28 Panel CS
+IO_37 GPIOHS_29 Panel RST
+IO_38 GPIOHS_30 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
------------------------
@@ -294,5 +354,5 @@ 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
========== ========= ===========
This patch adds the necessary configs and docs for FPIOA and GPIO support on the K210. Signed-off-by: Sean Anderson <seanga2@gmail.com> --- board/sipeed/maix/Kconfig | 12 ++++++++ doc/board/sipeed/maix.rst | 64 +++++++++++++++++++++++++++++++++++++-- 2 files changed, 74 insertions(+), 2 deletions(-)