HAL_ChibiOS: reduce DMA count until we can share

libraries/AP_HAL_ChibiOS/hwdef/Pixhawk4Pro/hwdef.dat

@@ -19,7 +19,7 @@ FLASH_RESERVE_START_KB 128
 STM32_VDD 330U
 
 # order of UARTs (and USB)
-UART_ORDER OTG1
+UART_ORDER OTG1 USART1 USART2 USART3 UART4 USART6 UART7
 
 define HAL_STORAGE_SIZE 16384
 
@@ -32,9 +32,6 @@ STM32_VDD 330U
 # flash size
 FLASH_SIZE_KB 2048
 
-# order of UARTs (and USB)
-UART_ORDER OTG1 USART1 USART2 USART3 UART4 USART6 UART7
-
 # now we define the pins that USB is connected on
 PA11 OTG_FS_DM OTG1
 PA12 OTG_FS_DP OTG1
@@ -87,12 +84,12 @@ PF0 I2C2_SDA I2C2
 PH7 I2C3_SCL I2C3
 PH8 I2C3_SDA I2C3
 
-PF14 I2C4_SCL I2C4
-PF15 I2C4_SDA I2C4
+# disable I2C4 till we support DMAMUX2
+#PF14 I2C4_SCL I2C4
+#PF15 I2C4_SDA I2C4
 
 # order of I2C buses
-I2C_ORDER I2C3 I2C1 I2C2 I2C4
-
+I2C_ORDER I2C3 I2C1 I2C2
 
 # enable pins
 PE3 VDD_3V3_SENSORS_EN OUTPUT HIGH
@@ -120,8 +117,8 @@ PD15 DRDY7_EXTERNAL1 INPUT
 # UARTs
 
 # USART2 is telem1
-PD6 USART2_RX USART2
-PD5 USART2_TX USART2
+PD6 USART2_RX USART2 NODMA
+PD5 USART2_TX USART2 NODMA
 PD3 USART2_CTS USART2
 PD4 USART2_RTS USART2
 
@@ -130,8 +127,8 @@ PB7 USART1_RX USART1 NODMA
 PB6 USART1_TX USART1 NODMA
 
 # USART3 is telem2
-PD9 USART3_RX USART3
-PD8 USART3_TX USART3
+PD9 USART3_RX USART3 NODMA
+PD8 USART3_TX USART3 NODMA
 PD11 USART3_CTS USART3
 PD12 USART3_RTS USART3
 
@@ -165,12 +162,12 @@ define AP_FEATURE_RTSCTS 1
 define AP_FEATURE_SBUS_OUT 1
 
 # PWM AUX channels
-PE14 TIM1_CH4 TIM1 PWM(1) GPIO(50)
-PA10 TIM1_CH3 TIM1 PWM(2) GPIO(51)
-PE11 TIM1_CH2 TIM1 PWM(3) GPIO(52)
-PE9  TIM1_CH1 TIM1 PWM(4) GPIO(53)
-PD13 TIM4_CH2 TIM4 PWM(5) GPIO(54)
-PD14 TIM4_CH3 TIM4 PWM(6) GPIO(55)
+PE14 TIM1_CH4 TIM1 PWM(1) GPIO(50) NODMA
+PA10 TIM1_CH3 TIM1 PWM(2) GPIO(51) NODMA
+PE11 TIM1_CH2 TIM1 PWM(3) GPIO(52) NODMA
+PE9  TIM1_CH1 TIM1 PWM(4) GPIO(53) NODMA
+PD13 TIM4_CH2 TIM4 PWM(5) GPIO(54) NODMA
+PD14 TIM4_CH3 TIM4 PWM(6) GPIO(55) NODMA
 # we need to disable DMA on the last 2 FMU channels
 # as timer 12 doesn't have a TIMn_UP DMA option
 PH6  TIM12_CH1 TIM12 PWM(7) GPIO(56) NODMA
@@ -241,7 +238,7 @@ SPIDEV bmi055_g       SPI1 DEVID3  BMI055_G_CS  MODE3 10*MHZ 10*MHZ
 SPIDEV bmi055_a       SPI1 DEVID4  BMI055_A_CS  MODE3 10*MHZ 10*MHZ
 SPIDEV ramtron        SPI2 DEVID1  FRAM_CS      MODE3  8*MHZ  8*MHZ 
 
-# microSD support
+# microSD support (disabled for now)
 #PC8 SDMMC_D0 SDMMC1
 #PC9 SDMMC_D1 SDMMC1
 #PC10 SDMMC_D2 SDMMC1