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u-boot: add support for Raspberry Pi Zero W
It is all ready supported upstream and this will apply a backported patch until next U-boot release. Signed-off-by: Mirza Krak <mirza.krak@endian.se>
This commit is contained in:
Mirza Krak
Andrei Gherzan
parent
24ffe9fb59
commit
f900a6568c
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@ -0,0 +1,143 @@
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From 8993056fb3d4af4f0cd078df20130d4e7c35c2f7 Mon Sep 17 00:00:00 2001
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From: Dmitry Korunov <dessel.k@gmail.com>
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Date: Sun, 26 Nov 2017 13:38:53 +0400
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Subject: [PATCH 1/1] add support for Raspberry Pi Zero W
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Signed-off-by: Dmitry Korunov <dessel.k@gmail.com>
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Signed-off-by: Mirza Krak <mirza.krak@gmail.com>
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Upstream-status: Backport
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---
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arch/arm/dts/bcm2835-rpi-zero-w.dts | 26 ++++++++++++++++++++++++++
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arch/arm/mach-bcm283x/Kconfig | 16 ++++++++++++++++
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board/raspberrypi/rpi/rpi.c | 5 +++++
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configs/rpi_0_w_defconfig | 28 ++++++++++++++++++++++++++++
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include/configs/rpi.h | 2 +-
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5 files changed, 76 insertions(+), 1 deletion(-)
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create mode 100644 arch/arm/dts/bcm2835-rpi-zero-w.dts
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create mode 100644 configs/rpi_0_w_defconfig
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diff --git a/arch/arm/dts/bcm2835-rpi-zero-w.dts b/arch/arm/dts/bcm2835-rpi-zero-w.dts
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new file mode 100644
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index 0000000..7817054
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--- /dev/null
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+++ b/arch/arm/dts/bcm2835-rpi-zero-w.dts
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@@ -0,0 +1,26 @@
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+/dts-v1/;
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+#include "bcm2835.dtsi"
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+#include "bcm2835-rpi.dtsi"
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+#include "bcm283x-rpi-smsc9512.dtsi"
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+#include "bcm283x-rpi-usb-host.dtsi"
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+
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+/ {
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+ compatible = "raspberrypi,model-zero-w", "brcm,bcm2835";
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+ model = "Raspberry Pi Zero W";
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+
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+ leds {
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+ act {
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+ gpios = <&gpio 47 0>;
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+ };
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+ };
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+};
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+
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+&uart1 {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&uart1_gpio14>;
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+ status = "okay";
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+};
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+
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+&hdmi {
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+ hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
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+};
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diff --git a/arch/arm/mach-bcm283x/Kconfig b/arch/arm/mach-bcm283x/Kconfig
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index 69f7a46..a78239d 100644
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--- a/arch/arm/mach-bcm283x/Kconfig
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+++ b/arch/arm/mach-bcm283x/Kconfig
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@@ -44,6 +44,22 @@ config TARGET_RPI
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This option creates a build targetting the ARM1176 ISA.
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select BCM2835
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+config TARGET_RPI_0_W
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+ bool "Raspberry Pi Zero W"
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+ help
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+ Support for all ARM1176-/BCM2835-based Raspberry Pi variants, such as
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+ the RPi Zero model W.
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+
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+ This option assumes the VideoCore firmware is configured to use the
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+ mini UART (rather than PL011) for the serial console. This is the
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+ default on the RPi Zero W. To enable the UART console, the following
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+ non-default option must be present in config.txt: enable_uart=1.
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+ This is required for U-Boot to operate correctly, even if you only
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+ care about the HDMI/usbkbd console.
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+
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+ This option creates a build targetting the ARMv7/AArch32 ISA.
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+ select BCM2835
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+
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config TARGET_RPI_2
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bool "Raspberry Pi 2"
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help
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diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c
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index 530f149..3b7a54f 100644
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--- a/board/raspberrypi/rpi/rpi.c
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+++ b/board/raspberrypi/rpi/rpi.c
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@@ -105,6 +105,11 @@ static const struct rpi_model rpi_models_new_scheme[] = {
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DTB_DIR "bcm2835-rpi-zero.dtb",
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false,
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},
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+ [0xC] = {
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+ "Zero W",
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+ DTB_DIR "bcm2835-rpi-zero-w.dtb",
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+ false,
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+ },
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};
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static const struct rpi_model rpi_models_old_scheme[] = {
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diff --git a/configs/rpi_0_w_defconfig b/configs/rpi_0_w_defconfig
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new file mode 100644
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index 0000000..092f378
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--- /dev/null
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+++ b/configs/rpi_0_w_defconfig
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@@ -0,0 +1,28 @@
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+CONFIG_ARM=y
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+CONFIG_ARCH_BCM283X=y
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+CONFIG_TARGET_RPI_0_W=y
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+CONFIG_DEFAULT_DEVICE_TREE="bcm2835-rpi-zero-w"
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+CONFIG_DISTRO_DEFAULTS=y
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+CONFIG_OF_BOARD_SETUP=y
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+# CONFIG_DISPLAY_CPUINFO is not set
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+# CONFIG_DISPLAY_BOARDINFO is not set
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+CONFIG_SYS_PROMPT="U-Boot> "
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+# CONFIG_CMD_IMLS is not set
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+# CONFIG_CMD_FLASH is not set
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+CONFIG_CMD_MMC=y
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+CONFIG_CMD_USB=y
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+# CONFIG_CMD_FPGA is not set
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+CONFIG_CMD_GPIO=y
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+CONFIG_DM_MMC=y
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+CONFIG_MMC_SDHCI=y
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+CONFIG_MMC_SDHCI_BCM2835=y
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+CONFIG_DM_ETH=y
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+CONFIG_USB=y
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+CONFIG_DM_USB=y
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+CONFIG_USB_STORAGE=y
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+CONFIG_USB_KEYBOARD=y
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+CONFIG_DM_VIDEO=y
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+CONFIG_SYS_WHITE_ON_BLACK=y
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+CONFIG_CONSOLE_SCROLL_LINES=10
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+CONFIG_PHYS_TO_BUS=y
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+CONFIG_OF_LIBFDT_OVERLAY=y
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diff --git a/include/configs/rpi.h b/include/configs/rpi.h
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index c499b45..cab8661 100644
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--- a/include/configs/rpi.h
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+++ b/include/configs/rpi.h
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@@ -76,7 +76,7 @@
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#endif
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/* Console UART */
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-#ifdef CONFIG_BCM2837
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+#if defined (CONFIG_BCM2837) || defined(CONFIG_TARGET_RPI_0_W)
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#define CONFIG_BCM283X_MU_SERIAL
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#else
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#define CONFIG_PL01X_SERIAL
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--
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2.1.4
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@ -1 +1,7 @@
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FILESEXTRAPATHS_prepend := "${THISDIR}/u-boot:"
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SRC_URI_append_rpi = " \
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file://0001-add-support-for-Raspberry-Pi-Zero-W.patch \
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"
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RDEPENDS_${PN}_append_rpi = " rpi-u-boot-scr"
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