[U-Boot] [PATCH 5/8] mips: add support for Broadcom MIPS
Daniel Schwierzeck
daniel.schwierzeck at gmail.com
Fri Apr 14 19:23:34 UTC 2017
Am 13.04.2017 um 17:52 schrieb Álvaro Fernández Rojas:
> This target supports some of the xDSL Broadcom MIPS SoCs for now.
> However, support for other SoCs could be added in the future.
>
> Signed-off-by: Álvaro Fernández Rojas <noltari at gmail.com>
> ---
> arch/mips/Kconfig | 10 ++
> arch/mips/Makefile | 1 +
> arch/mips/dts/Makefile | 3 +
> arch/mips/dts/brcm,bcm63268.dtsi | 87 +++++++++++
> arch/mips/dts/brcm,bcm6328.dtsi | 87 +++++++++++
> arch/mips/dts/brcm,bcm6358.dtsi | 97 ++++++++++++
> arch/mips/dts/comtrend,ar-5387un.dts | 27 ++++
> arch/mips/dts/comtrend,vr-3032u.dts | 27 ++++
> arch/mips/dts/huawei,hg556a.dts | 31 ++++
> arch/mips/mach-bmips/Kconfig | 86 ++++++++++
> arch/mips/mach-bmips/Makefile | 5 +
> arch/mips/mach-bmips/dram.c | 37 +++++
> board/comtrend/ar5387un/Kconfig | 24 +++
> board/comtrend/ar5387un/MAINTAINERS | 6 +
> board/comtrend/ar5387un/Makefile | 5 +
> board/comtrend/ar5387un/ar-5387un.c | 22 +++
> board/comtrend/vr3032u/Kconfig | 24 +++
> board/comtrend/vr3032u/MAINTAINERS | 6 +
> board/comtrend/vr3032u/Makefile | 5 +
> board/comtrend/vr3032u/vr-3032u.c | 22 +++
> board/huawei/hg556a/Kconfig | 24 +++
> board/huawei/hg556a/MAINTAINERS | 6 +
> board/huawei/hg556a/Makefile | 5 +
> board/huawei/hg556a/hg556a.c | 22 +++
> configs/comtrend_ar5387un_ram_defconfig | 47 ++++++
> configs/comtrend_vr3032u_ram_defconfig | 47 ++++++
> configs/huawei_hg556a_ram_defconfig | 47 ++++++
> drivers/cpu/Makefile | 2 +
> drivers/cpu/bmips_cpu.c | 268 ++++++++++++++++++++++++++++++++
> drivers/ram/Makefile | 2 +
> drivers/ram/bmips_ram.c | 126 +++++++++++++++
> include/configs/bmips_bcm63268.h | 25 +++
> include/configs/bmips_bcm6328.h | 25 +++
> include/configs/bmips_bcm6358.h | 27 ++++
> include/configs/bmips_common.h | 26 ++++
> include/configs/comtrend_ar5387un.h | 15 ++
> include/configs/comtrend_vr3032u.h | 15 ++
> include/configs/huawei_hg556a.h | 15 ++
> 38 files changed, 1356 insertions(+)
> create mode 100644 arch/mips/dts/brcm,bcm63268.dtsi
> create mode 100644 arch/mips/dts/brcm,bcm6328.dtsi
> create mode 100644 arch/mips/dts/brcm,bcm6358.dtsi
> create mode 100644 arch/mips/dts/comtrend,ar-5387un.dts
> create mode 100644 arch/mips/dts/comtrend,vr-3032u.dts
> create mode 100644 arch/mips/dts/huawei,hg556a.dts
> create mode 100644 arch/mips/mach-bmips/Kconfig
> create mode 100644 arch/mips/mach-bmips/Makefile
> create mode 100644 arch/mips/mach-bmips/dram.c
> create mode 100644 board/comtrend/ar5387un/Kconfig
> create mode 100644 board/comtrend/ar5387un/MAINTAINERS
> create mode 100644 board/comtrend/ar5387un/Makefile
> create mode 100644 board/comtrend/ar5387un/ar-5387un.c
> create mode 100644 board/comtrend/vr3032u/Kconfig
> create mode 100644 board/comtrend/vr3032u/MAINTAINERS
> create mode 100644 board/comtrend/vr3032u/Makefile
> create mode 100644 board/comtrend/vr3032u/vr-3032u.c
> create mode 100644 board/huawei/hg556a/Kconfig
> create mode 100644 board/huawei/hg556a/MAINTAINERS
> create mode 100644 board/huawei/hg556a/Makefile
> create mode 100644 board/huawei/hg556a/hg556a.c
> create mode 100644 configs/comtrend_ar5387un_ram_defconfig
> create mode 100644 configs/comtrend_vr3032u_ram_defconfig
> create mode 100644 configs/huawei_hg556a_ram_defconfig
> create mode 100644 drivers/cpu/bmips_cpu.c
> create mode 100644 drivers/ram/bmips_ram.c
> create mode 100644 include/configs/bmips_bcm63268.h
> create mode 100644 include/configs/bmips_bcm6328.h
> create mode 100644 include/configs/bmips_bcm6358.h
> create mode 100644 include/configs/bmips_common.h
> create mode 100644 include/configs/comtrend_ar5387un.h
> create mode 100644 include/configs/comtrend_vr3032u.h
> create mode 100644 include/configs/huawei_hg556a.h
please split this into separate patches for BMIPS and one for each boards
>
> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
> index d97930e..c97ea41 100644
> --- a/arch/mips/Kconfig
> +++ b/arch/mips/Kconfig
> @@ -75,6 +75,15 @@ config ARCH_ATH79
> select OF_CONTROL
> select DM
>
> +config ARCH_BMIPS
> + bool "Support BMIPS SoCs"
> + select OF_CONTROL
> + select DM
> + select CLK
> + select CPU
> + select RAM
> + select SYSRESET
> +
> config MACH_PIC32
> bool "Support Microchip PIC32"
> select OF_CONTROL
> @@ -123,6 +132,7 @@ source "board/micronas/vct/Kconfig"
> source "board/pb1x00/Kconfig"
> source "board/qemu-mips/Kconfig"
> source "arch/mips/mach-ath79/Kconfig"
> +source "arch/mips/mach-bmips/Kconfig"
> source "arch/mips/mach-pic32/Kconfig"
>
> if MIPS
> diff --git a/arch/mips/Makefile b/arch/mips/Makefile
> index efe7e44..c30d4ef 100644
> --- a/arch/mips/Makefile
> +++ b/arch/mips/Makefile
> @@ -15,6 +15,7 @@ libs-y += arch/mips/lib/
>
> machine-$(CONFIG_SOC_AU1X00) += au1x00
> machine-$(CONFIG_ARCH_ATH79) += ath79
> +machine-$(CONFIG_ARCH_BMIPS) += bmips
> machine-$(CONFIG_MACH_PIC32) += pic32
>
> machdirs := $(patsubst %,arch/mips/mach-%/,$(machine-y))
> diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
> index 30fcc2b..4c02c48 100644
> --- a/arch/mips/dts/Makefile
> +++ b/arch/mips/dts/Makefile
> @@ -8,6 +8,9 @@ dtb-$(CONFIG_TARGET_BOSTON) += img,boston.dtb
> dtb-$(CONFIG_TARGET_MALTA) += mti,malta.dtb
> dtb-$(CONFIG_TARGET_PIC32MZDASK) += pic32mzda_sk.dtb
> dtb-$(CONFIG_TARGET_XILFPGA) += nexys4ddr.dtb
> +dtb-$(CONFIG_BOARD_COMTREND_AR5387UN) += comtrend,ar-5387un.dtb
> +dtb-$(CONFIG_BOARD_COMTREND_VR3032U) += comtrend,vr-3032u.dtb
> +dtb-$(CONFIG_BOARD_HUAWEI_HG556A) += huawei,hg556a.dtb
> dtb-$(CONFIG_BOARD_TPLINK_WDR4300) += tplink_wdr4300.dtb
>
> targets += $(dtb-y)
> diff --git a/arch/mips/dts/brcm,bcm63268.dtsi b/arch/mips/dts/brcm,bcm63268.dtsi
> new file mode 100644
> index 0000000..d02472d
> --- /dev/null
> +++ b/arch/mips/dts/brcm,bcm63268.dtsi
> @@ -0,0 +1,87 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include "skeleton.dtsi"
> +
> +/ {
> + compatible = "brcm,bcm63268";
> +
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + u-boot,dm-pre-reloc;
> +
> + cpu at 0 {
> + compatible = "brcm,bcm63268-cpu", "mips,mips4Kc";
> + device_type = "cpu";
> + reg = <0>;
> + u-boot,dm-pre-reloc;
> + };
> +
> + cpu at 1 {
> + compatible = "brcm,bcm63268-cpu", "mips,mips4Kc";
> + device_type = "cpu";
> + reg = <1>;
> + u-boot,dm-pre-reloc;
> + };
> + };
> +
> + clocks {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + u-boot,dm-pre-reloc;
> +
> + periph_osc: periph-osc {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <50000000>;
> + u-boot,dm-pre-reloc;
> + };
> + };
> +
> + ubus {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + u-boot,dm-pre-reloc;
> +
> + periph_cntl: syscon at 10000000 {
> + compatible = "syscon";
> + reg = <0x10000000 0x14>;
> + };
> +
> + reboot: syscon-reboot {
> + compatible = "syscon-reboot";
> + regmap = <&periph_cntl>;
> + offset = <0x8>;
> + mask = <0x1>;
> + };
> +
> + uart0: serial at 10000180 {
> + compatible = "brcm,bcm6345-uart";
> + reg = <0x10000180 0x18>;
> + clocks = <&periph_osc>;
> +
> + status = "disabled";
> + };
> +
> + uart1: serial at 100001a0 {
> + compatible = "brcm,bcm6345-uart";
> + reg = <0x100001a0 0x18>;
> + clocks = <&periph_osc>;
> +
> + status = "disabled";
> + };
> +
> + memory-controller at 10003000 {
> + compatible = "brcm,bcm6328-mc";
> + reg = <0x10003000 0x1000>;
> + u-boot,dm-pre-reloc;
> + };
> + };
> +};
> diff --git a/arch/mips/dts/brcm,bcm6328.dtsi b/arch/mips/dts/brcm,bcm6328.dtsi
> new file mode 100644
> index 0000000..f7f4793
> --- /dev/null
> +++ b/arch/mips/dts/brcm,bcm6328.dtsi
> @@ -0,0 +1,87 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include "skeleton.dtsi"
> +
> +/ {
> + compatible = "brcm,bcm6328";
> +
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + u-boot,dm-pre-reloc;
> +
> + cpu at 0 {
> + compatible = "brcm,bcm6328-cpu", "mips,mips4Kc";
> + device_type = "cpu";
> + reg = <0>;
> + u-boot,dm-pre-reloc;
> + };
> +
> + cpu at 1 {
> + compatible = "brcm,bcm6328-cpu", "mips,mips4Kc";
> + device_type = "cpu";
> + reg = <1>;
> + u-boot,dm-pre-reloc;
> + };
> + };
> +
> + clocks {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + u-boot,dm-pre-reloc;
> +
> + periph_osc: periph-osc {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <50000000>;
> + u-boot,dm-pre-reloc;
> + };
> + };
> +
> + ubus {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + u-boot,dm-pre-reloc;
> +
> + reset_cntl: syscon at 10000068 {
> + compatible = "syscon";
> + reg = <0x10000068 0x4>;
> + };
> +
> + reboot: syscon-reboot {
> + compatible = "syscon-reboot";
> + regmap = <&reset_cntl>;
> + offset = <0>;
> + mask = <0x1>;
> + };
> +
> + uart0: serial at 10000100 {
> + compatible = "brcm,bcm6345-uart";
> + reg = <0x10000100 0x18>;
> + clocks = <&periph_osc>;
> +
> + status = "disabled";
> + };
> +
> + uart1: serial at 10000120 {
> + compatible = "brcm,bcm6345-uart";
> + reg = <0x10000120 0x18>;
> + clocks = <&periph_osc>;
> +
> + status = "disabled";
> + };
> +
> + memory-controller at 10003000 {
> + compatible = "brcm,bcm6328-mc";
> + reg = <0x10003000 0x1000>;
> + u-boot,dm-pre-reloc;
> + };
> + };
> +};
> diff --git a/arch/mips/dts/brcm,bcm6358.dtsi b/arch/mips/dts/brcm,bcm6358.dtsi
> new file mode 100644
> index 0000000..4b015d3
> --- /dev/null
> +++ b/arch/mips/dts/brcm,bcm6358.dtsi
> @@ -0,0 +1,97 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include "skeleton.dtsi"
> +
> +/ {
> + compatible = "brcm,bcm6358";
> +
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + u-boot,dm-pre-reloc;
> +
> + cpu at 0 {
> + compatible = "brcm,bcm6358-cpu", "mips,mips4Kc";
> + device_type = "cpu";
> + reg = <0>;
> + u-boot,dm-pre-reloc;
> + };
> +
> + cpu at 1 {
> + compatible = "brcm,bcm6358-cpu", "mips,mips4Kc";
> + device_type = "cpu";
> + reg = <1>;
> + u-boot,dm-pre-reloc;
> + };
> + };
> +
> + clocks {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + u-boot,dm-pre-reloc;
> +
> + periph_osc: periph-osc {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <50000000>;
> + u-boot,dm-pre-reloc;
> + };
> + };
> +
> + pflash: nor at 1e000000 {
> + compatible = "cfi-flash";
> + reg = <0x1e000000 0x2000000>;
> + bank-width = <2>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + status = "disabled";
> + };
> +
> + ubus {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + u-boot,dm-pre-reloc;
> +
> + periph_cntl: syscon at fffe0000 {
> + compatible = "syscon";
> + reg = <0xfffe0000 0xc>;
> + };
> +
> + reboot: syscon-reboot {
> + compatible = "syscon-reboot";
> + regmap = <&periph_cntl>;
> + offset = <0x8>;
> + mask = <0x1>;
> + };
> +
> + uart0: serial at fffe0100 {
> + compatible = "brcm,bcm6345-uart";
> + reg = <0xfffe0100 0x18>;
> + clocks = <&periph_osc>;
> +
> + status = "disabled";
> + };
> +
> + uart1: serial at fffe0120 {
> + compatible = "brcm,bcm6345-uart";
> + reg = <0xfffe0120 0x18>;
> + clocks = <&periph_osc>;
> +
> + status = "disabled";
> + };
> +
> + memory-controller at fffe1200 {
> + compatible = "brcm,bcm6358-mc";
> + reg = <0xfffe1200 0x1000>;
> + u-boot,dm-pre-reloc;
> + };
> + };
> +};
> diff --git a/arch/mips/dts/comtrend,ar-5387un.dts b/arch/mips/dts/comtrend,ar-5387un.dts
> new file mode 100644
> index 0000000..f9c4a1c
> --- /dev/null
> +++ b/arch/mips/dts/comtrend,ar-5387un.dts
> @@ -0,0 +1,27 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +/dts-v1/;
> +
> +#include "brcm,bcm6328.dtsi"
> +
> +/ {
> + model = "Comtrend AR-5387un Board";
> + compatible = "comtrend,ar5387-un", "brcm,bcm6328";
> +
> + aliases {
> + serial0 = &uart0;
> + };
> +
> + chosen {
> + stdout-path = "serial0:115200n8";
> + };
> +};
> +
> +&uart0 {
> + u-boot,dm-pre-reloc;
> + status = "okay";
> +};
> diff --git a/arch/mips/dts/comtrend,vr-3032u.dts b/arch/mips/dts/comtrend,vr-3032u.dts
> new file mode 100644
> index 0000000..c0fdb28
> --- /dev/null
> +++ b/arch/mips/dts/comtrend,vr-3032u.dts
> @@ -0,0 +1,27 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +/dts-v1/;
> +
> +#include "brcm,bcm63268.dtsi"
> +
> +/ {
> + model = "Comtrend VR-3032u Board";
> + compatible = "comtrend,vr-3032u", "brcm,bcm63268";
> +
> + aliases {
> + serial0 = &uart0;
> + };
> +
> + chosen {
> + stdout-path = "serial0:115200n8";
> + };
> +};
> +
> +&uart0 {
> + u-boot,dm-pre-reloc;
> + status = "okay";
> +};
> diff --git a/arch/mips/dts/huawei,hg556a.dts b/arch/mips/dts/huawei,hg556a.dts
> new file mode 100644
> index 0000000..08ef2c1
> --- /dev/null
> +++ b/arch/mips/dts/huawei,hg556a.dts
> @@ -0,0 +1,31 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +/dts-v1/;
> +
> +#include "brcm,bcm6358.dtsi"
> +
> +/ {
> + model = "Huawei HG556a Board";
> + compatible = "huawei,hg556a", "brcm,bcm6358";
> +
> + aliases {
> + serial0 = &uart0;
> + };
> +
> + chosen {
> + stdout-path = "serial0:115200n8";
> + };
> +};
> +
> +&pflash {
> + status = "okay";
> +};
> +
> +&uart0 {
> + u-boot,dm-pre-reloc;
> + status = "okay";
> +};
> diff --git a/arch/mips/mach-bmips/Kconfig b/arch/mips/mach-bmips/Kconfig
> new file mode 100644
> index 0000000..2996087
> --- /dev/null
> +++ b/arch/mips/mach-bmips/Kconfig
> @@ -0,0 +1,86 @@
> +menu "Broadcom MIPS platforms"
> + depends on ARCH_BMIPS
> +
> +config SYS_SOC
> + default "bcm6328" if SOC_BMIPS_BCM6328
> + default "bcm6358" if SOC_BMIPS_BCM6358
> + default "bcm63268" if SOC_BMIPS_BCM63268
> +
> +choice
> + prompt "Broadcom MIPS SoC select"
> +
> +config SOC_BMIPS_BCM6328
> + bool "BMIPS BCM6328 family"
> + select SUPPORTS_BIG_ENDIAN
> + select SUPPORTS_CPU_MIPS32_R1
> + select MIPS_TUNE_4KC
> + select MIPS_L1_CACHE_SHIFT_4
> + select SWAP_IO_SPACE
> + select SYSRESET_SYSCON
> + help
> + This supports BMIPS BCM6328 family including BCM63281 and BCM63283.
> +
> +config SOC_BMIPS_BCM6358
> + bool "BMIPS BCM6358 family"
> + select SUPPORTS_BIG_ENDIAN
> + select SUPPORTS_CPU_MIPS32_R1
> + select MIPS_TUNE_4KC
> + select MIPS_L1_CACHE_SHIFT_4
> + select SWAP_IO_SPACE
> + select SYSRESET_SYSCON
> + help
> + This supports BMIPS BCM6358 family including BCM6358 and BCM6359.
> +
> +config SOC_BMIPS_BCM63268
> + bool "BMIPS BCM63268 family"
> + select SUPPORTS_BIG_ENDIAN
> + select SUPPORTS_CPU_MIPS32_R1
> + select MIPS_TUNE_4KC
> + select MIPS_L1_CACHE_SHIFT_4
> + select SWAP_IO_SPACE
> + select SYSRESET_SYSCON
> + help
> + This supports BMIPS BCM63268 family including BCM63168, BCM63169, BCM63268 and BCM63269.
> +
> +endchoice
> +
> +choice
> + prompt "Board select"
> +
> +config BOARD_COMTREND_AR5387UN
> + bool "Comtrend AR-5387un board"
> + depends on SOC_BMIPS_BCM6328
> + select BMIPS_SUPPORTS_BOOT_RAM
> +
> +config BOARD_HUAWEI_HG556A
> + bool "Huawei HG556a board"
> + depends on SOC_BMIPS_BCM6358
> + select BMIPS_SUPPORTS_BOOT_RAM
> +
> +config BOARD_COMTREND_VR3032U
> + bool "Comtrend VR-3032u board"
> + depends on SOC_BMIPS_BCM63268
> + select BMIPS_SUPPORTS_BOOT_RAM
> +
> +endchoice
> +
> +choice
> + prompt "Boot mode"
> +
> +config BMIPS_BOOT_RAM
> + bool "RAM boot"
> + depends on BMIPS_SUPPORTS_BOOT_RAM
> + help
> + This builds an image that is linked to a RAM address. Caches are
> + disabled and environment is built in.
> +
> +endchoice
> +
> +config BMIPS_SUPPORTS_BOOT_RAM
> + bool
> +
> +source "board/comtrend/ar5387un/Kconfig"
> +source "board/huawei/hg556a/Kconfig"
> +source "board/comtrend/vr3032u/Kconfig"
> +
> +endmenu
> diff --git a/arch/mips/mach-bmips/Makefile b/arch/mips/mach-bmips/Makefile
> new file mode 100644
> index 0000000..f432acc
> --- /dev/null
> +++ b/arch/mips/mach-bmips/Makefile
> @@ -0,0 +1,5 @@
> +#
> +# SPDX-License-Identifier: GPL-2.0+
> +#
> +
> +obj-y += dram.o
> diff --git a/arch/mips/mach-bmips/dram.c b/arch/mips/mach-bmips/dram.c
> new file mode 100644
> index 0000000..931aa5d
> --- /dev/null
> +++ b/arch/mips/mach-bmips/dram.c
> @@ -0,0 +1,37 @@
> +/*
> + * Copyright (C) 2016 Daniel Schwierzeck <daniel.schwierzeck at gmail.com>
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <ram.h>
> +#include <dm.h>
> +
> +DECLARE_GLOBAL_DATA_PTR;
> +
> +int initdram(void)
> +{
> + struct ram_info ram;
> + struct udevice *dev;
> + int err;
> +
> + err = uclass_get_device(UCLASS_RAM, 0, &dev);
> + if (err) {
> + debug("DRAM init failed: %d\n", err);
> + return 0;
> + }
> +
> + err = ram_get_info(dev, &ram);
> + if (err) {
> + debug("Cannot get DRAM size: %d\n", err);
> + return 0;
> + }
> +
> + debug("SDRAM base=%zx, size=%x\n", ram.base, ram.size);
> +
> + gd->ram_size = ram.size;
> +
> + return 0;
> +}
> diff --git a/board/comtrend/ar5387un/Kconfig b/board/comtrend/ar5387un/Kconfig
> new file mode 100644
> index 0000000..32a69da
> --- /dev/null
> +++ b/board/comtrend/ar5387un/Kconfig
> @@ -0,0 +1,24 @@
> +if BOARD_COMTREND_AR5387UN
> +
> +config SYS_BOARD
> + default "ar5387un"
> +
> +config SYS_VENDOR
> + default "comtrend"
> +
> +config SYS_CONFIG_NAME
> + default "comtrend_ar5387un"
> +
> +config SYS_DCACHE_SIZE
> + default 32768
> +
> +config SYS_DCACHE_LINE_SIZE
> + default 16
> +
> +config SYS_ICACHE_SIZE
> + default 32768
> +
> +config SYS_ICACHE_LINE_SIZE
> + default 16
> +
> +endif
> diff --git a/board/comtrend/ar5387un/MAINTAINERS b/board/comtrend/ar5387un/MAINTAINERS
> new file mode 100644
> index 0000000..bcaac64
> --- /dev/null
> +++ b/board/comtrend/ar5387un/MAINTAINERS
> @@ -0,0 +1,6 @@
> +COMTREND AR-5387UN BOARD
> +M: Álvaro Fernández Rojas <noltari at gmail.com>
> +S: Maintained
> +F: board/comtrend/ar-5387un/
> +F: include/configs/comtrend_ar5387un.h
> +F: configs/comtrend_ar5387un_ram_defconfig
> diff --git a/board/comtrend/ar5387un/Makefile b/board/comtrend/ar5387un/Makefile
> new file mode 100644
> index 0000000..9de1cd2
> --- /dev/null
> +++ b/board/comtrend/ar5387un/Makefile
> @@ -0,0 +1,5 @@
> +#
> +# SPDX-License-Identifier: GPL-2.0+
> +#
> +
> +obj-y += ar-5387un.o
> diff --git a/board/comtrend/ar5387un/ar-5387un.c b/board/comtrend/ar5387un/ar-5387un.c
> new file mode 100644
> index 0000000..429117a
> --- /dev/null
> +++ b/board/comtrend/ar5387un/ar-5387un.c
> @@ -0,0 +1,22 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <debug_uart.h>
> +#include <asm/io.h>
> +#include <asm/addrspace.h>
> +#include <asm/types.h>
> +
> +#ifdef CONFIG_BOARD_EARLY_INIT_F
> +int board_early_init_f(void)
> +{
> +# ifdef CONFIG_DEBUG_UART
> + debug_uart_init();
> +# endif
> +
> + return 0;
> +}
> +#endif
> diff --git a/board/comtrend/vr3032u/Kconfig b/board/comtrend/vr3032u/Kconfig
> new file mode 100644
> index 0000000..1cba219
> --- /dev/null
> +++ b/board/comtrend/vr3032u/Kconfig
> @@ -0,0 +1,24 @@
> +if BOARD_COMTREND_VR3032U
> +
> +config SYS_BOARD
> + default "vr3032u"
> +
> +config SYS_VENDOR
> + default "comtrend"
> +
> +config SYS_CONFIG_NAME
> + default "comtrend_vr3032u"
> +
> +config SYS_DCACHE_SIZE
> + default 32768
> +
> +config SYS_DCACHE_LINE_SIZE
> + default 16
> +
> +config SYS_ICACHE_SIZE
> + default 65536
> +
> +config SYS_ICACHE_LINE_SIZE
> + default 16
could you try to use the auto-detection of cache sizes?
> +
> +endif
> diff --git a/board/comtrend/vr3032u/MAINTAINERS b/board/comtrend/vr3032u/MAINTAINERS
> new file mode 100644
> index 0000000..833d7da
> --- /dev/null
> +++ b/board/comtrend/vr3032u/MAINTAINERS
> @@ -0,0 +1,6 @@
> +COMTREND VR-3032U BOARD
> +M: Álvaro Fernández Rojas <noltari at gmail.com>
> +S: Maintained
> +F: board/comtrend/vr-3032u/
> +F: include/configs/comtrend_vr-3032u.h
> +F: configs/comtrend_vr3032u_ram_defconfig
> diff --git a/board/comtrend/vr3032u/Makefile b/board/comtrend/vr3032u/Makefile
> new file mode 100644
> index 0000000..9e62031
> --- /dev/null
> +++ b/board/comtrend/vr3032u/Makefile
> @@ -0,0 +1,5 @@
> +#
> +# SPDX-License-Identifier: GPL-2.0+
> +#
> +
> +obj-y += vr-3032u.o
> diff --git a/board/comtrend/vr3032u/vr-3032u.c b/board/comtrend/vr3032u/vr-3032u.c
> new file mode 100644
> index 0000000..429117a
> --- /dev/null
> +++ b/board/comtrend/vr3032u/vr-3032u.c
> @@ -0,0 +1,22 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <debug_uart.h>
> +#include <asm/io.h>
> +#include <asm/addrspace.h>
> +#include <asm/types.h>
> +
> +#ifdef CONFIG_BOARD_EARLY_INIT_F
> +int board_early_init_f(void)
> +{
> +# ifdef CONFIG_DEBUG_UART
> + debug_uart_init();
> +# endif
> +
> + return 0;
> +}
> +#endif
I think we should move this to MIPS start.S to support this for all MIPS
boards in a generic way. Puttings following code between
'setup_stack_gd' and the jump to 'board_init_f' should work:
#ifdef CONFIG_DEBUG_UART
PTR_LA t9, debug_uart_init
jalr t9
nop
#endif
> diff --git a/board/huawei/hg556a/Kconfig b/board/huawei/hg556a/Kconfig
> new file mode 100644
> index 0000000..59f65b1
> --- /dev/null
> +++ b/board/huawei/hg556a/Kconfig
> @@ -0,0 +1,24 @@
> +if BOARD_HUAWEI_HG556A
> +
> +config SYS_BOARD
> + default "hg556a"
> +
> +config SYS_VENDOR
> + default "huawei"
> +
> +config SYS_CONFIG_NAME
> + default "huawei_hg556a"
> +
> +config SYS_DCACHE_SIZE
> + default 16384
> +
> +config SYS_DCACHE_LINE_SIZE
> + default 16
> +
> +config SYS_ICACHE_SIZE
> + default 16384
> +
> +config SYS_ICACHE_LINE_SIZE
> + default 16
> +
> +endif
> diff --git a/board/huawei/hg556a/MAINTAINERS b/board/huawei/hg556a/MAINTAINERS
> new file mode 100644
> index 0000000..3ead7e4
> --- /dev/null
> +++ b/board/huawei/hg556a/MAINTAINERS
> @@ -0,0 +1,6 @@
> +HUAWEI HG556A BOARD
> +M: Álvaro Fernández Rojas <noltari at gmail.com>
> +S: Maintained
> +F: board/huawei/hg556a/
> +F: include/configs/huawei_hg556a.h
> +F: configs/huawei_hg556a_ram_defconfig
> diff --git a/board/huawei/hg556a/Makefile b/board/huawei/hg556a/Makefile
> new file mode 100644
> index 0000000..ace0ed3
> --- /dev/null
> +++ b/board/huawei/hg556a/Makefile
> @@ -0,0 +1,5 @@
> +#
> +# SPDX-License-Identifier: GPL-2.0+
> +#
> +
> +obj-y += hg556a.o
> diff --git a/board/huawei/hg556a/hg556a.c b/board/huawei/hg556a/hg556a.c
> new file mode 100644
> index 0000000..429117a
> --- /dev/null
> +++ b/board/huawei/hg556a/hg556a.c
> @@ -0,0 +1,22 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <debug_uart.h>
> +#include <asm/io.h>
> +#include <asm/addrspace.h>
> +#include <asm/types.h>
> +
> +#ifdef CONFIG_BOARD_EARLY_INIT_F
> +int board_early_init_f(void)
> +{
> +# ifdef CONFIG_DEBUG_UART
> + debug_uart_init();
> +# endif
> +
> + return 0;
> +}
> +#endif
> diff --git a/configs/comtrend_ar5387un_ram_defconfig b/configs/comtrend_ar5387un_ram_defconfig
> new file mode 100644
> index 0000000..cd99ca3
> --- /dev/null
> +++ b/configs/comtrend_ar5387un_ram_defconfig
> @@ -0,0 +1,47 @@
> +CONFIG_ARCH_BMIPS=y
> +CONFIG_BCM6345_SERIAL=y
> +CONFIG_BOARD_COMTREND_AR5387UN=y
> +# CONFIG_CMD_BOOTD is not set
> +CONFIG_CMD_BOOTM=y
> +CONFIG_CMD_CPU=y
> +# CONFIG_CMD_CRC32 is not set
> +# CONFIG_CMD_EDITENV is not set
> +# CONFIG_CMD_ELF is not set
> +# CONFIG_CMD_ENV_EXISTS is not set
> +# CONFIG_CMD_EXPORTENV is not set
> +# CONFIG_CMD_FLASH is not set
> +# CONFIG_CMD_FPGA is not set
> +# CONFIG_CMD_GPIO is not set
> +# CONFIG_CMD_IMLS is not set
> +# CONFIG_CMD_IMPORTENV is not set
> +CONFIG_CMD_LICENSE=y
> +CONFIG_CMD_LOADB=y
> +# CONFIG_CMD_LOADS is not set
> +CONFIG_CMD_MEMINFO=y
> +# CONFIG_CMD_MISC is not set
> +# CONFIG_CMD_NET is not set
> +# CONFIG_CMD_NFS is not set
> +# CONFIG_CMD_SAVEENV is not set
> +# CONFIG_CMD_XIMG is not set
> +CONFIG_DEBUG_UART=y
> +CONFIG_DEBUG_UART_BCM6345=y
> +CONFIG_DEBUG_UART_BASE=0xb0000100
> +CONFIG_DEBUG_UART_CLOCK=25000000
> +CONFIG_DEBUG_UART_ANNOUNCE=y
debug UART should be disabled in the default config
> +CONFIG_DEFAULT_DEVICE_TREE="comtrend,ar-5387un"
> +CONFIG_DISPLAY_CPUINFO=y
> +# CONFIG_DM_DEVICE_REMOVE is not set
> +CONFIG_DM_GPIO=y
> +CONFIG_DM_SERIAL=y
> +CONFIG_HUSH_PARSER=y
> +CONFIG_MIPS=y
> +# CONFIG_MIPS_BOOT_CMDLINE_LEGACY is not set
> +# CONFIG_MIPS_BOOT_ENV_LEGACY is not set
> +CONFIG_MIPS_BOOT_FDT=y
> +CONFIG_OF_STDOUT_VIA_ALIAS=y
> +CONFIG_SOC_BMIPS_BCM6328=y
> +# CONFIG_SPL_SERIAL_PRESENT is not set
> +# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
> +CONFIG_SYS_NO_FLASH=y
> +CONFIG_SYS_PROMPT="AR-5387un # "
> +CONFIG_SYS_TEXT_BASE=0x80010000
> diff --git a/configs/comtrend_vr3032u_ram_defconfig b/configs/comtrend_vr3032u_ram_defconfig
> new file mode 100644
> index 0000000..d8b1d38
> --- /dev/null
> +++ b/configs/comtrend_vr3032u_ram_defconfig
> @@ -0,0 +1,47 @@
> +CONFIG_ARCH_BMIPS=y
> +CONFIG_BCM6345_SERIAL=y
> +CONFIG_BOARD_COMTREND_VR3032U=y
> +# CONFIG_CMD_BOOTD is not set
> +CONFIG_CMD_BOOTM=y
> +CONFIG_CMD_CPU=y
> +# CONFIG_CMD_CRC32 is not set
> +# CONFIG_CMD_EDITENV is not set
> +# CONFIG_CMD_ELF is not set
> +# CONFIG_CMD_ENV_EXISTS is not set
> +# CONFIG_CMD_EXPORTENV is not set
> +# CONFIG_CMD_FLASH is not set
> +# CONFIG_CMD_FPGA is not set
> +# CONFIG_CMD_GPIO is not set
> +# CONFIG_CMD_IMLS is not set
> +# CONFIG_CMD_IMPORTENV is not set
> +CONFIG_CMD_LICENSE=y
> +CONFIG_CMD_LOADB=y
> +# CONFIG_CMD_LOADS is not set
> +CONFIG_CMD_MEMINFO=y
> +# CONFIG_CMD_MISC is not set
> +# CONFIG_CMD_NET is not set
> +# CONFIG_CMD_NFS is not set
> +# CONFIG_CMD_SAVEENV is not set
> +# CONFIG_CMD_XIMG is not set
> +CONFIG_DEBUG_UART=y
> +CONFIG_DEBUG_UART_BCM6345=y
> +CONFIG_DEBUG_UART_BASE=0xb0000100
> +CONFIG_DEBUG_UART_CLOCK=25000000
> +CONFIG_DEBUG_UART_ANNOUNCE=y
> +CONFIG_DEFAULT_DEVICE_TREE="comtrend,vr-3032u"
> +CONFIG_DISPLAY_CPUINFO=y
> +# CONFIG_DM_DEVICE_REMOVE is not set
> +CONFIG_DM_GPIO=y
> +CONFIG_DM_SERIAL=y
> +CONFIG_HUSH_PARSER=y
> +CONFIG_MIPS=y
> +# CONFIG_MIPS_BOOT_CMDLINE_LEGACY is not set
> +# CONFIG_MIPS_BOOT_ENV_LEGACY is not set
> +CONFIG_MIPS_BOOT_FDT=y
> +CONFIG_OF_STDOUT_VIA_ALIAS=y
> +CONFIG_SOC_BMIPS_BCM63268=y
> +# CONFIG_SPL_SERIAL_PRESENT is not set
> +# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
> +CONFIG_SYS_NO_FLASH=y
> +CONFIG_SYS_PROMPT="VR-3032u # "
> +CONFIG_SYS_TEXT_BASE=0x80010000
> diff --git a/configs/huawei_hg556a_ram_defconfig b/configs/huawei_hg556a_ram_defconfig
> new file mode 100644
> index 0000000..9994a4d
> --- /dev/null
> +++ b/configs/huawei_hg556a_ram_defconfig
> @@ -0,0 +1,47 @@
> +CONFIG_ARCH_BMIPS=y
> +CONFIG_BCM6345_SERIAL=y
> +CONFIG_BOARD_HUAWEI_HG556A=y
> +# CONFIG_CMD_BOOTD is not set
> +CONFIG_CMD_BOOTM=y
> +CONFIG_CMD_CPU=y
> +# CONFIG_CMD_CRC32 is not set
> +# CONFIG_CMD_EDITENV is not set
> +# CONFIG_CMD_ELF is not set
> +# CONFIG_CMD_ENV_EXISTS is not set
> +# CONFIG_CMD_EXPORTENV is not set
> +# CONFIG_CMD_FLASH is not set
> +# CONFIG_CMD_FPGA is not set
> +# CONFIG_CMD_GPIO is not set
> +# CONFIG_CMD_IMLS is not set
> +# CONFIG_CMD_IMPORTENV is not set
> +CONFIG_CMD_LICENSE=y
> +CONFIG_CMD_LOADB=y
> +# CONFIG_CMD_LOADS is not set
> +CONFIG_CMD_MEMINFO=y
> +# CONFIG_CMD_MISC is not set
> +# CONFIG_CMD_NET is not set
> +# CONFIG_CMD_NFS is not set
> +# CONFIG_CMD_SAVEENV is not set
> +# CONFIG_CMD_XIMG is not set
> +CONFIG_DEBUG_UART=y
> +CONFIG_DEBUG_UART_BCM6345=y
> +CONFIG_DEBUG_UART_BASE=0xfffe0100
> +CONFIG_DEBUG_UART_CLOCK=25000000
> +CONFIG_DEBUG_UART_ANNOUNCE=y
> +CONFIG_DEFAULT_DEVICE_TREE="huawei,hg556a"
> +CONFIG_DISPLAY_CPUINFO=y
> +# CONFIG_DM_DEVICE_REMOVE is not set
> +CONFIG_DM_GPIO=y
> +CONFIG_DM_SERIAL=y
> +CONFIG_HUSH_PARSER=y
> +CONFIG_MIPS=y
> +# CONFIG_MIPS_BOOT_CMDLINE_LEGACY is not set
> +# CONFIG_MIPS_BOOT_ENV_LEGACY is not set
> +CONFIG_MIPS_BOOT_FDT=y
> +CONFIG_OF_STDOUT_VIA_ALIAS=y
> +CONFIG_SOC_BMIPS_BCM6358=y
> +# CONFIG_SPL_SERIAL_PRESENT is not set
> +# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
> +CONFIG_SYS_NO_FLASH=y
> +CONFIG_SYS_PROMPT="HG556a # "
> +CONFIG_SYS_TEXT_BASE=0x80010000
> diff --git a/drivers/cpu/Makefile b/drivers/cpu/Makefile
> index 8710160..db515f6 100644
> --- a/drivers/cpu/Makefile
> +++ b/drivers/cpu/Makefile
> @@ -5,3 +5,5 @@
> # SPDX-License-Identifier: GPL-2.0+
> #
> obj-$(CONFIG_CPU) += cpu-uclass.o
> +
> +obj-$(CONFIG_ARCH_BMIPS) += bmips_cpu.o
> diff --git a/drivers/cpu/bmips_cpu.c b/drivers/cpu/bmips_cpu.c
> new file mode 100644
> index 0000000..8ca4899
> --- /dev/null
> +++ b/drivers/cpu/bmips_cpu.c
> @@ -0,0 +1,268 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * Derived from linux/arch/mips/bcm63xx/cpu.c:
> + * Copyright (C) 2008 Maxime Bizon <mbizon at freebox.fr>
> + * Copyright (C) 2009 Florian Fainelli <florian at openwrt.org>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <cpu.h>
> +#include <dm.h>
> +#include <errno.h>
> +#include <asm/io.h>
> +
> +DECLARE_GLOBAL_DATA_PTR;
> +
> +#define REV_CHIPID_SHIFT 16
> +#define REV_CHIPID_MASK (0xffff << REV_CHIPID_SHIFT)
> +#define REV_REVID_SHIFT 0
> +#define REV_REVID_MASK (0xff << REV_REVID_SHIFT)
> +
> +#define REG_BCM6328_OTP 0x62c
> +#define BCM6328_TP1_DISABLED BIT(9)
> +
> +#define REG_BCM6328_MISC_STRAPBUS 0x1a40
> +#define STRAPBUS_6328_FCVO_SHIFT 7
> +#define STRAPBUS_6328_FCVO_MASK (0x1f << STRAPBUS_6328_FCVO_SHIFT)
> +
> +#define REG_BCM6358_DDR_DMIPSPLLCFG 0x12b8
> +#define DMIPSPLLCFG_6358_M1_SHIFT 0
> +#define DMIPSPLLCFG_6358_M1_MASK (0xff << DMIPSPLLCFG_6358_M1_SHIFT)
> +#define DMIPSPLLCFG_6358_N1_SHIFT 23
> +#define DMIPSPLLCFG_6358_N1_MASK (0x3f << DMIPSPLLCFG_6358_N1_SHIFT)
> +#define DMIPSPLLCFG_6358_N2_SHIFT 29
> +#define DMIPSPLLCFG_6358_N2_MASK (0x7 << DMIPSPLLCFG_6358_N2_SHIFT)
> +
> +#define REG_BCM63268_MISC_STRAPBUS 0x1814
> +#define STRAPBUS_63268_FCVO_SHIFT 21
> +#define STRAPBUS_63268_FCVO_MASK (0xf << STRAPBUS_63268_FCVO_SHIFT)
> +
> +struct bmips_cpu_priv;
> +
> +struct bmips_cpu_hw {
> + void __iomem *regs;
> + ulong (*get_cpu_freq)(const struct bmips_cpu_hw *);
> + int (*get_cpu_count)(const struct bmips_cpu_hw *);
> +};
> +
> +struct bmips_cpu_priv {
> + const struct bmips_cpu_hw *hw;
> +};
> +
> +/* Specific CPU Ops */
> +static ulong bcm6328_get_cpu_freq(const struct bmips_cpu_hw *hw)
> +{
> + unsigned int mips_pll_fcvo;
> +
> + mips_pll_fcvo = __raw_readl(hw->regs + REG_BCM6328_MISC_STRAPBUS);
> + mips_pll_fcvo = (mips_pll_fcvo & STRAPBUS_6328_FCVO_MASK)
> + >> STRAPBUS_6328_FCVO_SHIFT;
> +
> + switch (mips_pll_fcvo) {
> + case 0x12:
> + case 0x14:
> + case 0x19:
> + return 160000000;
> + case 0x1c:
> + return 192000000;
> + case 0x13:
> + case 0x15:
> + return 200000000;
> + case 0x1a:
> + return 384000000;
> + case 0x16:
> + return 400000000;
> + default:
> + return 320000000;
> + }
> +}
> +
> +static ulong bcm6358_get_cpu_freq(const struct bmips_cpu_hw *hw)
> +{
> + unsigned int tmp, n1, n2, m1;
> +
> + tmp = __raw_readl(hw->regs + REG_BCM6358_DDR_DMIPSPLLCFG);
> + n1 = (tmp & DMIPSPLLCFG_6358_N1_MASK) >> DMIPSPLLCFG_6358_N1_SHIFT;
> + n2 = (tmp & DMIPSPLLCFG_6358_N2_MASK) >> DMIPSPLLCFG_6358_N2_SHIFT;
> + m1 = (tmp & DMIPSPLLCFG_6358_M1_MASK) >> DMIPSPLLCFG_6358_M1_SHIFT;
> +
> + return (16 * 1000000 * n1 * n2) / m1;
> +}
> +
> +static ulong bcm63268_get_cpu_freq(const struct bmips_cpu_hw *hw)
> +{
> + unsigned mips_pll_fcvo;
> +
> + mips_pll_fcvo = __raw_readl(hw->regs + REG_BCM63268_MISC_STRAPBUS);
> + mips_pll_fcvo = (mips_pll_fcvo & STRAPBUS_63268_FCVO_MASK)
> + >> STRAPBUS_63268_FCVO_SHIFT;
> +
> + switch (mips_pll_fcvo) {
> + case 0x3:
> + case 0xe:
> + return 320000000;
> + case 0xa:
> + return 333000000;
> + case 0x2:
> + case 0xb:
> + case 0xf:
> + return 400000000;
> + default:
> + return 0;
> + }
> +}
> +
> +static int bcm6328_get_cpu_count(const struct bmips_cpu_hw *hw)
> +{
> + u32 val = __raw_readl(hw->regs + REG_BCM6328_OTP);
> +
> + if (val & BCM6328_TP1_DISABLED)
> + return 1;
> + else
> + return 2;
> +}
> +
> +static int bcm6358_get_cpu_count(const struct bmips_cpu_hw *hw)
> +{
> + return 2;
> +}
> +
> +static const struct bmips_cpu_hw bmips_cpu_bcm6328 = {
> + .regs = (void __iomem *)0xb0000000,
> + .get_cpu_freq = bcm6328_get_cpu_freq,
> + .get_cpu_count = bcm6328_get_cpu_count,
> +};
> +
> +static const struct bmips_cpu_hw bmips_cpu_bcm6358 = {
> + .regs = (void __iomem *)0xfffe0000,
> + .get_cpu_freq = bcm6358_get_cpu_freq,
> + .get_cpu_count = bcm6358_get_cpu_count,
> +};
> +
> +static const struct bmips_cpu_hw bmips_cpu_bcm63268 = {
> + .regs = (void __iomem *)0xb0000000,
> + .get_cpu_freq = bcm63268_get_cpu_freq,
> + .get_cpu_count = bcm6358_get_cpu_count,
> +};
can't you derive CPU count and register base from DT?
> +
> +/* Generic CPU Ops */
> +static int bmips_cpu_get_desc(struct udevice *dev, char *buf, int size)
> +{
> + struct bmips_cpu_priv *priv = dev_get_priv(dev);
> + const struct bmips_cpu_hw *hw = priv->hw;
> + u32 cpu_revid;
> + u16 cpu_id;
> + u8 cpu_rev;
> +
> + cpu_revid = __raw_readl(hw->regs);
> + cpu_id = (cpu_revid & REV_CHIPID_MASK) >> REV_CHIPID_SHIFT;
> + cpu_rev = (cpu_revid & REV_REVID_MASK) >> REV_REVID_SHIFT;
> +
> + snprintf(buf, size, "BCM%04X%02X", cpu_id, cpu_rev);
> +
> + return 0;
> +}
> +
> +static int bmips_cpu_get_info(struct udevice *dev, struct cpu_info *info)
> +{
> + struct bmips_cpu_priv *priv = dev_get_priv(dev);
> + const struct bmips_cpu_hw *hw = priv->hw;
> +
> + info->cpu_freq = hw->get_cpu_freq(hw);
> + info->features = BIT(CPU_FEAT_L1_CACHE);
> + info->features |= BIT(CPU_FEAT_MMU);
> + info->features |= BIT(CPU_FEAT_DEVICE_ID);
> +
> + return 0;
> +}
> +
> +static int bmips_cpu_get_count(struct udevice *dev)
> +{
> + struct bmips_cpu_priv *priv = dev_get_priv(dev);
> + const struct bmips_cpu_hw *hw = priv->hw;
> +
> + return hw->get_cpu_count(hw);
> +}
> +
> +static int bmips_cpu_get_vendor(struct udevice *dev, char *buf, int size)
> +{
> + snprintf(buf, size, "Broadcom");
> +
> + return 0;
> +}
> +
> +static const struct cpu_ops bmips_cpu_ops = {
> + .get_desc = bmips_cpu_get_desc,
> + .get_info = bmips_cpu_get_info,
> + .get_count = bmips_cpu_get_count,
> + .get_vendor = bmips_cpu_get_vendor,
> +};
> +
> +/* BMIPS CPU driver */
> +int bmips_cpu_bind(struct udevice *dev)
> +{
> + struct cpu_platdata *plat = dev_get_parent_platdata(dev);
> + struct bmips_cpu_priv *priv = dev_get_priv(dev);
> + const struct bmips_cpu_hw *hw =
> + (const struct bmips_cpu_hw *)dev_get_driver_data(dev);
> +
> + priv->hw = hw;
> +
> + plat->cpu_id = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
> + "reg", -1);
> + plat->device_id = read_c0_prid();
> +
> + return 0;
> +}
> +
> +static const struct udevice_id bmips_cpu_ids[] = {
> + {
> + .compatible = "brcm,bcm6328-cpu",
> + .data = (ulong)&bmips_cpu_bcm6328,
> + }, {
> + .compatible = "brcm,bcm6358-cpu",
> + .data = (ulong)&bmips_cpu_bcm6358,
> + }, {
> + .compatible = "brcm,bcm63268-cpu",
> + .data = (ulong)&bmips_cpu_bcm63268,
> + },
> + { /* sentinel */ }
> +};
> +
> +U_BOOT_DRIVER(bmips_cpu_drv) = {
> + .name = "bmips_cpu",
> + .id = UCLASS_CPU,
> + .of_match = bmips_cpu_ids,
> + .bind = bmips_cpu_bind,
> + .ops = &bmips_cpu_ops,
> +};
> +
> +#ifdef CONFIG_DISPLAY_CPUINFO
> +int print_cpuinfo(void)
> +{
> + struct cpu_info cpu;
> + struct udevice *dev;
> + int err;
> + char desc[100];
> +
> + err = uclass_get_device(UCLASS_CPU, 0, &dev);
> + if (err)
> + return 0;
> +
> + err = cpu_get_info(dev, &cpu);
> + if (err)
> + return 0;
> +
> + err = cpu_get_desc(dev, desc, sizeof(desc));
> + if (err)
> + return 0;
> +
> + printf("Chip ID: %s, MIPS: ", desc);
> + print_freq(cpu.cpu_freq, "\n");
> +
> + return 0;
> +}
> +#endif
> diff --git a/drivers/ram/Makefile b/drivers/ram/Makefile
> index 0e10249..818dd9f 100644
> --- a/drivers/ram/Makefile
> +++ b/drivers/ram/Makefile
> @@ -6,3 +6,5 @@
> #
> obj-$(CONFIG_RAM) += ram-uclass.o
> obj-$(CONFIG_SANDBOX) += sandbox_ram.o
> +
> +obj-$(CONFIG_ARCH_BMIPS) += bmips_ram.o
> diff --git a/drivers/ram/bmips_ram.c b/drivers/ram/bmips_ram.c
> new file mode 100644
> index 0000000..7c7da88
> --- /dev/null
> +++ b/drivers/ram/bmips_ram.c
> @@ -0,0 +1,126 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * Derived from linux/arch/mips/bcm63xx/cpu.c:
> + * Copyright (C) 2008 Maxime Bizon <mbizon at freebox.fr>
> + * Copyright (C) 2009 Florian Fainelli <florian at openwrt.org>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#include <errno.h>
> +#include <common.h>
> +#include <dm/device.h>
> +#include <ram.h>
> +#include <asm/io.h>
> +
> +#define MEMC_CFG_REG 0x4
> +#define MEMC_CFG_32B_SHIFT 1
> +#define MEMC_CFG_32B_MASK (1 << MEMC_CFG_32B_SHIFT)
> +#define MEMC_CFG_COL_SHIFT 3
> +#define MEMC_CFG_COL_MASK (0x3 << MEMC_CFG_COL_SHIFT)
> +#define MEMC_CFG_ROW_SHIFT 6
> +#define MEMC_CFG_ROW_MASK (0x3 << MEMC_CFG_ROW_SHIFT)
> +
> +#define DDR_CSEND_REG 0x8
> +
> +struct bmips_ram_priv;
> +
> +struct bmips_ram_hw {
> + ulong (*get_ram_size)(struct bmips_ram_priv *);
> +};
> +
> +struct bmips_ram_priv {
> + void __iomem *regs;
> + const struct bmips_ram_hw *hw;
> +};
> +
> +static ulong bcm6328_get_ram_size(struct bmips_ram_priv *priv)
> +{
> + return __raw_readl(priv->regs + DDR_CSEND_REG) << 24;
> +}
> +
> +static ulong bcm6358_get_ram_size(struct bmips_ram_priv *priv)
> +{
> + unsigned int cols = 0, rows = 0, is_32bits = 0, banks = 0;
> + u32 val;
> +
> + val = __raw_readl(priv->regs + MEMC_CFG_REG);
> + rows = (val & MEMC_CFG_ROW_MASK) >> MEMC_CFG_ROW_SHIFT;
> + cols = (val & MEMC_CFG_COL_MASK) >> MEMC_CFG_COL_SHIFT;
> + is_32bits = (val & MEMC_CFG_32B_MASK) ? 0 : 1;
> + banks = 2;
> +
> + /* 0 => 11 address bits ... 2 => 13 address bits */
> + rows += 11;
> +
> + /* 0 => 8 address bits ... 2 => 10 address bits */
> + cols += 8;
> +
> + return 1 << (cols + rows + (is_32bits + 1) + banks);
> +}
> +
> +static int bmips_ram_get_info(struct udevice *dev, struct ram_info *info)
> +{
> + struct bmips_ram_priv *priv = dev_get_priv(dev);
> + const struct bmips_ram_hw *hw = priv->hw;
> +
> + info->base = 0x80000000;
> + info->size = hw->get_ram_size(priv);
> +
> + return 0;
> +}
> +
> +static const struct ram_ops bmips_ram_ops = {
> + .get_info = bmips_ram_get_info,
> +};
> +
> +static const struct bmips_ram_hw bmips_ram_bcm6328 = {
> + .get_ram_size = bcm6328_get_ram_size,
> +};
> +
> +static const struct bmips_ram_hw bmips_ram_bcm6358 = {
> + .get_ram_size = bcm6358_get_ram_size,
> +};
> +
> +static const struct udevice_id bmips_ram_of_match[] = {
> + {
> + .compatible = "brcm,bcm6328-mc",
> + .data = (ulong)&bmips_ram_bcm6328,
> + }, {
> + .compatible = "brcm,bcm6358-mc",
> + .data = (ulong)&bmips_ram_bcm6358,
> + }, {
> + .compatible = "brcm,bcm63268-mc",
> + .data = (ulong)&bmips_ram_bcm6328,
> + },
> + { /* sentinel */ }
> +};
> +
> +static int bmips_ram_probe(struct udevice *dev)
> +{
> + struct bmips_ram_priv *priv = dev_get_priv(dev);
> + const struct bmips_ram_hw *hw =
> + (const struct bmips_ram_hw *)dev_get_driver_data(dev);
> + fdt_addr_t addr;
> + fdt_size_t size;
> +
> + addr = dev_get_addr_size_index(dev, 0, &size);
> + if (addr == FDT_ADDR_T_NONE)
> + return -EINVAL;
> +
> + priv->regs = ioremap(addr, size);
> + priv->hw = hw;
> +
> + return 0;
> +}
> +
> +U_BOOT_DRIVER(bmips_ram) = {
> + .name = "bmips-mc",
> + .id = UCLASS_RAM,
> + .of_match = bmips_ram_of_match,
> + .probe = bmips_ram_probe,
> + .priv_auto_alloc_size = sizeof(struct bmips_ram_priv),
> + .ops = &bmips_ram_ops,
> + .flags = DM_FLAG_PRE_RELOC,
> +};
> diff --git a/include/configs/bmips_bcm63268.h b/include/configs/bmips_bcm63268.h
> new file mode 100644
> index 0000000..91f42e9
> --- /dev/null
> +++ b/include/configs/bmips_bcm63268.h
> @@ -0,0 +1,25 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#ifndef __CONFIG_BMIPS_BCM63268_H
> +#define __CONFIG_BMIPS_BCM63268_H
> +
> +/* CPU */
> +#define CONFIG_SYS_MIPS_TIMER_FREQ 200000000
> +
> +/* RAM */
> +#define CONFIG_NR_DRAM_BANKS 1
> +#define CONFIG_SYS_SDRAM_BASE 0x80000000
> +
> +/* U-Boot */
> +#define CONFIG_SYS_LOAD_ADDR CONFIG_SYS_SDRAM_BASE + 0x100000
> +
> +#if defined(CONFIG_BMIPS_BOOT_RAM)
> +#define CONFIG_SYS_INIT_SP_OFFSET 0x2000
> +#define CONFIG_SKIP_LOWLEVEL_INIT
> +#endif
> +
> +#endif /* __CONFIG_BMIPS_BCM63268_H */
> diff --git a/include/configs/bmips_bcm6328.h b/include/configs/bmips_bcm6328.h
> new file mode 100644
> index 0000000..a5c9a2e
> --- /dev/null
> +++ b/include/configs/bmips_bcm6328.h
> @@ -0,0 +1,25 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#ifndef __CONFIG_BMIPS_BCM6328_H
> +#define __CONFIG_BMIPS_BCM6328_H
> +
> +/* CPU */
> +#define CONFIG_SYS_MIPS_TIMER_FREQ 160000000
> +
> +/* RAM */
> +#define CONFIG_NR_DRAM_BANKS 1
> +#define CONFIG_SYS_SDRAM_BASE 0x80000000
> +
> +/* U-Boot */
> +#define CONFIG_SYS_LOAD_ADDR CONFIG_SYS_SDRAM_BASE + 0x100000
> +
> +#if defined(CONFIG_BMIPS_BOOT_RAM)
> +#define CONFIG_SYS_INIT_SP_OFFSET 0x2000
> +#define CONFIG_SKIP_LOWLEVEL_INIT
> +#endif
> +
> +#endif /* __CONFIG_BMIPS_BCM6328_H */
> diff --git a/include/configs/bmips_bcm6358.h b/include/configs/bmips_bcm6358.h
> new file mode 100644
> index 0000000..efac11d
> --- /dev/null
> +++ b/include/configs/bmips_bcm6358.h
> @@ -0,0 +1,27 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#ifndef __CONFIG_BMIPS_BCM6358_H
> +#define __CONFIG_BMIPS_BCM6358_H
> +
> +/* CPU */
> +#define CONFIG_SYS_MIPS_TIMER_FREQ 150000000
> +
> +/* RAM */
> +#define CONFIG_NR_DRAM_BANKS 1
> +#define CONFIG_SYS_SDRAM_BASE 0x80000000
> +
> +/* U-Boot */
> +#define CONFIG_SYS_LOAD_ADDR CONFIG_SYS_SDRAM_BASE + 0x100000
> +
> +#if defined(CONFIG_BMIPS_BOOT_RAM)
> +#define CONFIG_SYS_INIT_SP_OFFSET 0x2000
> +#define CONFIG_SKIP_LOWLEVEL_INIT
> +#endif
> +
> +#define CONFIG_SYS_MAX_FLASH_BANKS 2
> +
> +#endif /* __CONFIG_BMIPS_BCM6358_H */
> diff --git a/include/configs/bmips_common.h b/include/configs/bmips_common.h
> new file mode 100644
> index 0000000..0640d21
> --- /dev/null
> +++ b/include/configs/bmips_common.h
> @@ -0,0 +1,26 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#ifndef __CONFIG_BMIPS_COMMON_H
> +#define __CONFIG_BMIPS_COMMON_H
> +
> +/* RAM */
> +#define CONFIG_SYS_MEMTEST_START 0xa0000000
> +#define CONFIG_SYS_MEMTEST_END 0xa2000000
> +
> +/* Serial */
> +#define CONFIG_BAUDRATE 115200
> +
> +/* Memory usage */
> +#define CONFIG_SYS_MAXARGS 24
> +#define CONFIG_SYS_MALLOC_LEN (1024 * 1024)
> +#define CONFIG_SYS_BOOTPARAMS_LEN (128 * 1024)
> +#define CONFIG_SYS_CBSIZE 512
> +
> +/* U-Boot */
> +#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
> +
> +#endif /* __CONFIG_BMIPS_COMMON_H */
> diff --git a/include/configs/comtrend_ar5387un.h b/include/configs/comtrend_ar5387un.h
> new file mode 100644
> index 0000000..8803506
> --- /dev/null
> +++ b/include/configs/comtrend_ar5387un.h
> @@ -0,0 +1,15 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#include <configs/bmips_common.h>
> +#include <configs/bmips_bcm6328.h>
> +
> +#define CONFIG_ENV_IS_NOWHERE
> +#define CONFIG_ENV_SIZE (8 * 1024)
> +
> +#define CONFIG_SYS_LONGHELP
> +#define CONFIG_AUTO_COMPLETE
> +#define CONFIG_CMDLINE_EDITING
> diff --git a/include/configs/comtrend_vr3032u.h b/include/configs/comtrend_vr3032u.h
> new file mode 100644
> index 0000000..066b4c7
> --- /dev/null
> +++ b/include/configs/comtrend_vr3032u.h
> @@ -0,0 +1,15 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#include <configs/bmips_common.h>
> +#include <configs/bmips_bcm63268.h>
> +
> +#define CONFIG_ENV_IS_NOWHERE
> +#define CONFIG_ENV_SIZE (8 * 1024)
> +
> +#define CONFIG_SYS_LONGHELP
> +#define CONFIG_AUTO_COMPLETE
> +#define CONFIG_CMDLINE_EDITING
> diff --git a/include/configs/huawei_hg556a.h b/include/configs/huawei_hg556a.h
> new file mode 100644
> index 0000000..4856ee7
> --- /dev/null
> +++ b/include/configs/huawei_hg556a.h
> @@ -0,0 +1,15 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari at gmail.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#include <configs/bmips_common.h>
> +#include <configs/bmips_bcm6358.h>
> +
> +#define CONFIG_ENV_IS_NOWHERE
> +#define CONFIG_ENV_SIZE (8 * 1024)
> +
> +#define CONFIG_SYS_LONGHELP
> +#define CONFIG_AUTO_COMPLETE
> +#define CONFIG_CMDLINE_EDITING
>
--
- Daniel
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