firmware: Updates for Pi4

Author: popcornmix

boot/bcm2708-rpi-b-plus.dtb

@@ -1137,6 +1137,34 @@ Params: sda1_pin                GPIO pin for SDA1 (2 or 44 - default 2)
                                 "yes")
 
 
+Name:   i2c3
+Info:   Enable the i2c3 bus
+Load:   dtoverlay=i2c3,<param>
+Params: pins_2_3                Use GPIOs 2 and 3
+        pins_4_5                Use GPIOs 4 and 5 (default)
+
+
+Name:   i2c4
+Info:   Enable the i2c4 bus
+Load:   dtoverlay=i2c4,<param>
+Params: pins_6_7                Use GPIOs 6 and 7
+        pins_8_9                Use GPIOs 8 and 9 (default)
+
+
+Name:   i2c5
+Info:   Enable the i2c5 bus
+Load:   dtoverlay=i2c5,<param>
+Params: pins_10_11              Use GPIOs 10 and 11
+        pins_12_13              Use GPIOs 12 and 13 (default)
+
+
+Name:   i2c6
+Info:   Enable the i2c6 bus
+Load:   dtoverlay=i2c6,<param>
+Params: pins_0_1                Use GPIOs 0 and 1
+        pins_22_23              Use GPIOs 22 and 23 (default)
+
+
 Name:   i2s-gpio28-31
 Info:   move I2S function block to GPIO 28 to 31
 Load:   dtoverlay=i2s-gpio28-31
@@ -1939,6 +1967,12 @@ Load:   dtoverlay=spi-gpio35-39
 Params: <None>
 
 
+Name:   spi-gpio40-45
+Info:   Move SPI function block to GPIOs 40 to 45
+Load:   dtoverlay=spi-gpio40-45
+Params: <None>
+
+
 Name:   spi-rtc
 Info:   Adds support for a number of SPI Real Time Clock devices
 Load:   dtoverlay=spi-rtc,<param>=<val>
@@ -2057,6 +2091,110 @@ Params: cs0_pin                 GPIO pin for CS0 (default 43 - BCM SPI2_CE0).
                                 is 'okay' or enabled).
 
 
+Name:   spi3-1cs
+Info:   Enables spi3 with a single chip select (CS) line and associated spidev
+        dev node. The gpio pin number for the CS line and spidev device node
+        creation are configurable.
+Load:   dtoverlay=spi3-1cs,<param>=<val>
+Params: cs0_pin                 GPIO pin for CS0 (default 0 - BCM SPI3_CE0).
+        cs0_spidev              Set to 'off' to prevent the creation of a
+                                userspace device node /dev/spidev3.0 (default
+                                is 'on' or enabled).
+
+
+Name:   spi3-2cs
+Info:   Enables spi3 with two chip select (CS) lines and associated spidev
+        dev nodes. The gpio pin numbers for the CS lines and spidev device node
+        creation are configurable.
+Load:   dtoverlay=spi3-2cs,<param>=<val>
+Params: cs0_pin                 GPIO pin for CS0 (default 0 - BCM SPI3_CE0).
+        cs1_pin                 GPIO pin for CS1 (default 24 - BCM SPI3_CE1).
+        cs0_spidev              Set to 'off' to prevent the creation of a
+                                userspace device node /dev/spidev3.0 (default
+                                is 'on' or enabled).
+        cs1_spidev              Set to 'off' to prevent the creation of a
+                                userspace device node /dev/spidev3.1 (default
+                                is 'on' or enabled).
+
+
+Name:   spi4-1cs
+Info:   Enables spi4 with a single chip select (CS) line and associated spidev
+        dev node. The gpio pin number for the CS line and spidev device node
+        creation are configurable.
+Load:   dtoverlay=spi4-1cs,<param>=<val>
+Params: cs0_pin                 GPIO pin for CS0 (default 4 - BCM SPI4_CE0).
+        cs0_spidev              Set to 'off' to prevent the creation of a
+                                userspace device node /dev/spidev4.0 (default
+                                is 'on' or enabled).
+
+
+Name:   spi4-2cs
+Info:   Enables spi4 with two chip select (CS) lines and associated spidev
+        dev nodes. The gpio pin numbers for the CS lines and spidev device node
+        creation are configurable.
+Load:   dtoverlay=spi4-2cs,<param>=<val>
+Params: cs0_pin                 GPIO pin for CS0 (default 4 - BCM SPI4_CE0).
+        cs1_pin                 GPIO pin for CS1 (default 25 - BCM SPI4_CE1).
+        cs0_spidev              Set to 'off' to prevent the creation of a
+                                userspace device node /dev/spidev4.0 (default
+                                is 'on' or enabled).
+        cs1_spidev              Set to 'off' to prevent the creation of a
+                                userspace device node /dev/spidev4.1 (default
+                                is 'on' or enabled).
+
+
+Name:   spi5-1cs
+Info:   Enables spi5 with a single chip select (CS) line and associated spidev
+        dev node. The gpio pin numbers for the CS lines and spidev device node
+        creation are configurable.
+Load:   dtoverlay=spi5-1cs,<param>=<val>
+Params: cs0_pin                 GPIO pin for CS0 (default 12 - BCM SPI5_CE0).
+        cs0_spidev              Set to 'off' to prevent the creation of a
+                                userspace device node /dev/spidev5.0 (default
+                                is 'on' or enabled).
+
+
+Name:   spi5-2cs
+Info:   Enables spi5 with two chip select (CS) lines and associated spidev
+        dev nodes. The gpio pin numbers for the CS lines and spidev device node
+        creation are configurable.
+Load:   dtoverlay=spi5-2cs,<param>=<val>
+Params: cs0_pin                 GPIO pin for CS0 (default 12 - BCM SPI5_CE0).
+        cs1_pin                 GPIO pin for CS1 (default 26 - BCM SPI5_CE1).
+        cs0_spidev              Set to 'off' to prevent the creation of a
+                                userspace device node /dev/spidev5.0 (default
+                                is 'on' or enabled).
+        cs1_spidev              Set to 'off' to prevent the creation of a
+                                userspace device node /dev/spidev5.1 (default
+                                is 'on' or enabled).
+
+
+Name:   spi6-1cs
+Info:   Enables spi6 with a single chip select (CS) line and associated spidev
+        dev node. The gpio pin number for the CS line and spidev device node
+        creation are configurable.
+Load:   dtoverlay=spi6-1cs,<param>=<val>
+Params: cs0_pin                 GPIO pin for CS0 (default 18 - BCM SPI6_CE0).
+        cs0_spidev              Set to 'off' to prevent the creation of a
+                                userspace device node /dev/spidev6.0 (default
+                                is 'on' or enabled).
+
+
+Name:   spi6-2cs
+Info:   Enables spi6 with two chip select (CS) lines and associated spidev
+        dev nodes. The gpio pin numbers for the CS lines and spidev device node
+        creation are configurable.
+Load:   dtoverlay=spi6-2cs,<param>=<val>
+Params: cs0_pin                 GPIO pin for CS0 (default 18 - BCM SPI6_CE0).
+        cs1_pin                 GPIO pin for CS1 (default 27 - BCM SPI6_CE1).
+        cs0_spidev              Set to 'off' to prevent the creation of a
+                                userspace device node /dev/spidev6.0 (default
+                                is 'on' or enabled).
+        cs1_spidev              Set to 'off' to prevent the creation of a
+                                userspace device node /dev/spidev6.1 (default
+                                is 'on' or enabled).
+
+
 Name:   ssd1306
 Info:   Overlay for activation of SSD1306 over I2C OLED display framebuffer.
 Load:   dtoverlay=ssd1306,<param>=<val>
@@ -2199,6 +2337,30 @@ Params: txd1_pin                GPIO pin for TXD1 (14, 32 or 40 - default 14)
         rxd1_pin                GPIO pin for RXD1 (15, 33 or 41 - default 15)
 
 
+Name:   uart2
+Info:   Enable uart 2 on GPIOs 0-3
+Load:   dtoverlay=uart2,<param>
+Params: ctsrts                  Enable CTS/RTS on GPIOs 2-3 (default off)
+
+
+Name:   uart3
+Info:   Enable uart 3 on GPIOs 4-7
+Load:   dtoverlay=uart3,<param>
+Params: ctsrts                  Enable CTS/RTS on GPIOs 6-7 (default off)
+
+
+Name:   uart4
+Info:   Enable uart 4 on GPIOs 8-11
+Load:   dtoverlay=uart4,<param>
+Params: ctsrts                  Enable CTS/RTS on GPIOs 10-11 (default off)
+
+
+Name:   uart5
+Info:   Enable uart 5 on GPIOs 12-15
+Load:   dtoverlay=uart5,<param>
+Params: ctsrts                  Enable CTS/RTS on GPIOs 14-15 (default off)
+
+
 Name:   udrc
 Info:   Configures the NW Digital Radio UDRC Hat
 Load:   dtoverlay=udrc,<param>=<val>