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793f8ab62c
Add kernel patches for version 6.1. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
182 lines
5.5 KiB
Diff
182 lines
5.5 KiB
Diff
From 2da5974313a0580d948c760214a2ea6f4e59bebf Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Wed, 19 Apr 2023 15:13:48 +0100
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Subject: [PATCH] overlays: Update miniuart-bt now krnbt is default
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Now that the kernel controls the onboard Bluetooth initialisation by
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default, the miniuart-bt overlay needs updating to match.
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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arch/arm/boot/dts/bcm2708-rpi-zero-w.dts | 6 ++++++
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arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts | 6 ++++++
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arch/arm/boot/dts/bcm2710-rpi-3-b.dts | 6 ++++++
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arch/arm/boot/dts/bcm2710-rpi-zero-2-w.dts | 6 ++++++
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arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 6 ++++++
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arch/arm/boot/dts/bcm2711-rpi-400.dts | 6 ++++++
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arch/arm/boot/dts/bcm2711-rpi-cm4.dts | 6 ++++++
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arch/arm/boot/dts/overlays/README | 13 ++++---------
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arch/arm/boot/dts/overlays/miniuart-bt-overlay.dts | 8 +++-----
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9 files changed, 49 insertions(+), 14 deletions(-)
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--- a/arch/arm/boot/dts/bcm2708-rpi-zero-w.dts
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+++ b/arch/arm/boot/dts/bcm2708-rpi-zero-w.dts
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@@ -138,6 +138,12 @@
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brcm,pull;
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};
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+ uart1_bt_pins: uart1_bt_pins {
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+ brcm,pins = <32 33 30 31>;
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+ brcm,function = <BCM2835_FSEL_ALT5>; /* alt5=UART1 */
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+ brcm,pull = <0 2 2 0>;
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+ };
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+
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audio_pins: audio_pins {
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brcm,pins = <>;
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brcm,function = <>;
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--- a/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
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+++ b/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
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@@ -140,6 +140,12 @@
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brcm,pull;
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};
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+ uart1_bt_pins: uart1_bt_pins {
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+ brcm,pins = <32 33 30 31>;
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+ brcm,function = <BCM2835_FSEL_ALT5>; /* alt5=UART1 */
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+ brcm,pull = <0 2 2 0>;
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+ };
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+
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audio_pins: audio_pins {
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brcm,pins = <40 41>;
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brcm,function = <4>;
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--- a/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
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+++ b/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
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@@ -140,6 +140,12 @@
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brcm,pull;
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};
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+ uart1_bt_pins: uart1_bt_pins {
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+ brcm,pins = <32 33>;
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+ brcm,function = <BCM2835_FSEL_ALT5>; /* alt5=UART1 */
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+ brcm,pull = <0 2>;
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+ };
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+
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audio_pins: audio_pins {
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brcm,pins = <40 41>;
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brcm,function = <4>;
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--- a/arch/arm/boot/dts/bcm2710-rpi-zero-2-w.dts
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+++ b/arch/arm/boot/dts/bcm2710-rpi-zero-2-w.dts
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@@ -138,6 +138,12 @@
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brcm,pull;
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};
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+ uart1_bt_pins: uart1_bt_pins {
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+ brcm,pins = <32 33 30 31>;
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+ brcm,function = <BCM2835_FSEL_ALT5>; /* alt5=UART1 */
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+ brcm,pull = <0 2 2 0>;
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+ };
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+
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audio_pins: audio_pins {
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brcm,pins = <>;
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brcm,function = <>;
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--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
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+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
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@@ -445,6 +445,12 @@
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brcm,pull;
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};
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+ uart1_bt_pins: uart1_bt_pins {
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+ brcm,pins = <32 33 30 31>;
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+ brcm,function = <BCM2835_FSEL_ALT5>; /* alt5=UART1 */
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+ brcm,pull = <0 2 2 0>;
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+ };
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+
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uart2_pins: uart2_pins {
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brcm,pins = <0 1>;
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brcm,function = <BCM2835_FSEL_ALT4>;
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--- a/arch/arm/boot/dts/bcm2711-rpi-400.dts
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+++ b/arch/arm/boot/dts/bcm2711-rpi-400.dts
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@@ -445,6 +445,12 @@
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brcm,pull;
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};
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+ uart1_bt_pins: uart1_bt_pins {
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+ brcm,pins = <32 33 30 31>;
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+ brcm,function = <BCM2835_FSEL_ALT5>; /* alt5=UART1 */
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+ brcm,pull = <0 2 2 0>;
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+ };
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+
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uart2_pins: uart2_pins {
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brcm,pins = <0 1>;
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brcm,function = <BCM2835_FSEL_ALT4>;
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--- a/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
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+++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
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@@ -454,6 +454,12 @@
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brcm,pull;
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};
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+ uart1_bt_pins: uart1_bt_pins {
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+ brcm,pins = <32 33 30 31>;
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+ brcm,function = <BCM2835_FSEL_ALT5>; /* alt5=UART1 */
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+ brcm,pull = <0 2 2 0>;
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+ };
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+
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uart2_pins: uart2_pins {
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brcm,pins = <0 1>;
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brcm,function = <BCM2835_FSEL_ALT4>;
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -2887,17 +2887,12 @@ Params: speed SPI bus
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Name: miniuart-bt
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-Info: Switch the onboard Bluetooth function on Pi 3B, 3B+, 3A+, 4B and Zero W
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+Info: Switch the onboard Bluetooth function of a BT-equipped Raspberry Pi
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to use the mini-UART (ttyS0) and restore UART0/ttyAMA0 over GPIOs 14 &
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- 15. Note that this may reduce the maximum usable baudrate.
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- N.B. It is also necessary to edit /lib/systemd/system/hciuart.service
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- and replace ttyAMA0 with ttyS0, unless using Raspbian or another
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- distribution with udev rules that create /dev/serial0 and /dev/serial1,
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- in which case use /dev/serial1 instead because it will always be
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- correct. Furthermore, you must also set core_freq and core_freq_min to
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- the same value in config.txt or the miniuart will not work.
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+ 15. Note that this option uses a lower baudrate, and should only be used
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+ with low-bandwidth peripherals.
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Load: dtoverlay=miniuart-bt,<param>=<val>
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-Params: krnbt Set to "on" to enable autoprobing of Bluetooth
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+Params: krnbt Set to "off" to disable autoprobing of Bluetooth
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driver without need of hciattach/btattach
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--- a/arch/arm/boot/dts/overlays/miniuart-bt-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/miniuart-bt-overlay.dts
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@@ -55,11 +55,9 @@
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};
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fragment@4 {
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- target = <&uart1_pins>;
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+ target = <&uart1>;
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__overlay__ {
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- brcm,pins = <32 33 30 31>;
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- brcm,function = <2>; /* alt5=UART1 */
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- brcm,pull = <0 2 2 0>;
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+ pinctrl-0 = <&uart1_bt_pins>;
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};
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};
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@@ -68,6 +66,7 @@
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__overlay__ {
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serial0 = "/soc/serial@7e201000";
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serial1 = "/soc/serial@7e215040";
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+ bluetooth = "/soc/serial@7e215040/bluetooth";
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};
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};
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@@ -80,6 +79,5 @@
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__overrides__ {
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krnbt = <&minibt_frag>,"status";
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- krnbt_baudrate = <&minibt_frag>,"max-speed:0";
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};
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};
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