Hei hei,
this patch series for RPi3 support was not merged yet. What is the
current status? Would it help if I test it on a raspberry pi 3?
(Background: I have a RPi3 lying around and would like to use
DistroKit on it.)
Greets
Alex
On Mon, Mar 26, 2018 at 09:20:24PM +0200, Lucas Stach wrote:
> This adds basic support at the same feature level as the other
> supported raspberry pi boards.
>
> Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
> Tested-by: Roland Hieber <r.hieber@xxxxxxxxxxxxxx>
> ---
> arch/arm/boards/raspberry-pi/lowlevel.c | 14 ++++++++++++--
> arch/arm/configs/rpi_defconfig | 2 ++
> arch/arm/dts/Makefile | 1 +
> arch/arm/dts/bcm2837-rpi-3.dts | 15 +++++++++++++++
> arch/arm/mach-bcm283x/Kconfig | 6 ++++++
> arch/arm/mach-bcm283x/core.c | 1 +
> images/Makefile.bcm283x | 4 ++++
> 7 files changed, 41 insertions(+), 2 deletions(-)
> create mode 100644 arch/arm/dts/bcm2837-rpi-3.dts
>
> diff --git a/arch/arm/boards/raspberry-pi/lowlevel.c b/arch/arm/boards/raspberry-pi/lowlevel.c
> index 4e71e29e0c0b..5ca0d3877069 100644
> --- a/arch/arm/boards/raspberry-pi/lowlevel.c
> +++ b/arch/arm/boards/raspberry-pi/lowlevel.c
> @@ -1,7 +1,7 @@
> +#include <asm/barebox-arm.h>
> +#include <asm/cache.h>
> #include <common.h>
> #include <linux/sizes.h>
> -#include <asm/barebox-arm.h>
> -#include <asm/barebox-arm-head.h>
> #include <mach/platform.h>
>
> extern char __dtb_bcm2835_rpi_start[];
> @@ -23,3 +23,13 @@ ENTRY_FUNCTION(start_raspberry_pi2, r0, r1, r2)
>
> barebox_arm_entry(BCM2835_SDRAM_BASE, SZ_512M, fdt);
> }
> +
> +extern char __dtb_bcm2837_rpi_3_start[];
> +ENTRY_FUNCTION(start_raspberry_pi3, r0, r1, r2)
> +{
> + void *fdt = __dtb_bcm2837_rpi_3_start - get_runtime_offset();
> +
> + arm_cpu_lowlevel_init();
> +
> + barebox_arm_entry(BCM2835_SDRAM_BASE, SZ_512M, fdt);
> +}
> diff --git a/arch/arm/configs/rpi_defconfig b/arch/arm/configs/rpi_defconfig
> index f3aef4290425..cd88b4ac751c 100644
> --- a/arch/arm/configs/rpi_defconfig
> +++ b/arch/arm/configs/rpi_defconfig
> @@ -1,9 +1,11 @@
> CONFIG_ARCH_BCM283X=y
> CONFIG_MACH_RPI=y
> CONFIG_MACH_RPI2=y
> +CONFIG_MACH_RPI3=y
> CONFIG_AEABI=y
> CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS=y
> CONFIG_ARM_UNWIND=y
> +CONFIG_IMAGE_COMPRESSION_NONE=y
> CONFIG_MMU=y
> CONFIG_MALLOC_TLSF=y
> CONFIG_KALLSYMS=y
> diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
> index 0526a6f40724..0eab313c5011 100644
> --- a/arch/arm/dts/Makefile
> +++ b/arch/arm/dts/Makefile
> @@ -66,6 +66,7 @@ pbl-dtb-$(CONFIG_MACH_PHYTEC_SOM_RK3288) += rk3288-phycore-som.dtb.o
> pbl-dtb-$(CONFIG_MACH_REALQ7) += imx6q-dmo-edmqmx6.dtb.o
> pbl-dtb-$(CONFIG_MACH_RPI) += bcm2835-rpi.dtb.o
> pbl-dtb-$(CONFIG_MACH_RPI2) += bcm2836-rpi-2.dtb.o
> +pbl-dtb-$(CONFIG_MACH_RPI3) += bcm2837-rpi-3.dtb.o
> pbl-dtb-$(CONFIG_MACH_SABRELITE) += imx6q-sabrelite.dtb.o imx6dl-sabrelite.dtb.o
> pbl-dtb-$(CONFIG_MACH_SABRESD) += imx6q-sabresd.dtb.o
> pbl-dtb-$(CONFIG_MACH_FREESCALE_IMX6SX_SABRESDB) += imx6sx-sdb.dtb.o
> diff --git a/arch/arm/dts/bcm2837-rpi-3.dts b/arch/arm/dts/bcm2837-rpi-3.dts
> new file mode 100644
> index 000000000000..f8c58c570137
> --- /dev/null
> +++ b/arch/arm/dts/bcm2837-rpi-3.dts
> @@ -0,0 +1,15 @@
> +#include <arm64/broadcom/bcm2837-rpi-3-b.dts>
> +
> +/ {
> + chosen {
> + stdout-path = &uart0;
> + };
> +
> + memory {
> + reg = <0x0 0x0>;
> + };
> +};
> +
> +&uart0 {
> + status = "okay";
> +};
> diff --git a/arch/arm/mach-bcm283x/Kconfig b/arch/arm/mach-bcm283x/Kconfig
> index 1457f114ccaa..af2f88c47acb 100644
> --- a/arch/arm/mach-bcm283x/Kconfig
> +++ b/arch/arm/mach-bcm283x/Kconfig
> @@ -19,6 +19,12 @@ config MACH_RPI2
> select CPU_V7
> select MACH_RPI_COMMON
>
> +config MACH_RPI3
> + bool "RaspberryPi 3 (BCM2837/CORTEX-A53)"
> + select CPU_V7
> + select MACH_RPI_COMMON
> + select ARM_SECURE_MONITOR
> +
> endmenu
>
> config MACH_RPI_DEBUG_UART_BASE
> diff --git a/arch/arm/mach-bcm283x/core.c b/arch/arm/mach-bcm283x/core.c
> index fddcb0d1a1d4..26f0996b1cb8 100644
> --- a/arch/arm/mach-bcm283x/core.c
> +++ b/arch/arm/mach-bcm283x/core.c
> @@ -41,6 +41,7 @@ static int bcm2835_clk_init(void)
> clk = clk_fixed("uart0-pl0110", 3 * 1000 * 1000);
> clk_register_clkdev(clk, NULL, "uart0-pl0110");
> clk_register_clkdev(clk, NULL, "20201000.serial");
> + clk_register_clkdev(clk, NULL, "3f201000.serial");
>
> clk = clk_fixed("bcm2835-cs", 1 * 1000 * 1000);
> clk_register_clkdev(clk, NULL, "bcm2835-cs");
> diff --git a/images/Makefile.bcm283x b/images/Makefile.bcm283x
> index d59ef043f05c..d14e648926ac 100644
> --- a/images/Makefile.bcm283x
> +++ b/images/Makefile.bcm283x
> @@ -9,3 +9,7 @@ image-$(CONFIG_MACH_RPI) += barebox-raspberry-pi-1.img
> pblx-$(CONFIG_MACH_RPI2) += start_raspberry_pi2
> FILE_barebox-raspberry-pi-2.img = start_raspberry_pi2.pblx
> image-$(CONFIG_MACH_RPI2) += barebox-raspberry-pi-2.img
> +
> +pblx-$(CONFIG_MACH_RPI3) += start_raspberry_pi3
> +FILE_barebox-raspberry-pi-3.img = start_raspberry_pi3.pblx
> +image-$(CONFIG_MACH_RPI3) += barebox-raspberry-pi-3.img
> \ No newline at end of file
> --
> 2.16.1
>
>
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