diff options
| -rw-r--r-- | arch/arm/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm/dts/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/dts/ns-board.dts | 57 | ||||
| -rw-r--r-- | board/broadcom/bcmns/Kconfig | 12 | ||||
| -rw-r--r-- | board/broadcom/bcmns/MAINTAINERS | 6 | ||||
| -rw-r--r-- | board/broadcom/bcmns/Makefile | 2 | ||||
| -rw-r--r-- | board/broadcom/bcmns/ns.c | 60 | ||||
| -rw-r--r-- | configs/bcmns_defconfig | 41 | ||||
| -rw-r--r-- | doc/board/broadcom/index.rst | 1 | ||||
| -rw-r--r-- | doc/board/broadcom/northstar.rst | 44 | ||||
| -rw-r--r-- | include/configs/bcmns.h | 49 |
11 files changed, 275 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 60ac7d4..fdb24d6 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -2285,6 +2285,7 @@ source "board/Marvell/octeontx2/Kconfig" source "board/armltd/vexpress/Kconfig" source "board/armltd/vexpress64/Kconfig" source "board/cortina/presidio-asic/Kconfig" +source "board/broadcom/bcmns/Kconfig" source "board/broadcom/bcmns3/Kconfig" source "board/cavium/thunderx/Kconfig" source "board/eets/pdu001/Kconfig" diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index 3385948..ca03a96 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -1200,6 +1200,8 @@ dtb-$(CONFIG_ARCH_BCM283X) += \ bcm2837-rpi-cm3-io3.dtb \ bcm2711-rpi-4-b.dtb +dtb-$(CONFIG_TARGET_BCMNS) += ns-board.dtb + dtb-$(CONFIG_TARGET_BCMNS3) += ns3-board.dtb dtb-$(CONFIG_ARCH_BCMSTB) += bcm7xxx.dtb diff --git a/arch/arm/dts/ns-board.dts b/arch/arm/dts/ns-board.dts new file mode 100644 index 0000000..bc2a0dd --- /dev/null +++ b/arch/arm/dts/ns-board.dts @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: GPL-2.0+ + +/dts-v1/; + +#include "bcm5301x.dtsi" + +/ { + /* + * The Northstar does not have a proper fallback compatible, but + * these basic chips will suffice. + */ + model = "Northstar model"; + compatible = "brcm,bcm47094", "brcm,bcm4708"; + #address-cells = <1>; + #size-cells = <1>; + interrupt-parent = <&gic>; + + memory { + device_type = "memory"; + reg = <0x00000000 0x08000000>, + <0x88000000 0x08000000>; + }; + + aliases { + serial0 = &uart0; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; + + nand-controller@18028000 { + nandcs: nand@0 { + compatible = "brcm,nandcs"; + reg = <0>; + #address-cells = <1>; + #size-cells = <1>; + + /* + * Same as using the bcm5301x-nand-cs0-bch1.dtsi + * include from the Linux kernel. + */ + nand-ecc-algo = "bch"; + nand-ecc-strength = <1>; + nand-ecc-step-size = <512>; + + partitions { + compatible = "brcm,bcm947xx-cfe-partitions"; + }; + }; + }; +}; + +&uart0 { + clock-frequency = <125000000>; + status = "okay"; +}; diff --git a/board/broadcom/bcmns/Kconfig b/board/broadcom/bcmns/Kconfig new file mode 100644 index 0000000..82f4709 --- /dev/null +++ b/board/broadcom/bcmns/Kconfig @@ -0,0 +1,12 @@ +if TARGET_BCMNS + +config SYS_BOARD + default "bcmns" + +config SYS_VENDOR + default "broadcom" + +config SYS_CONFIG_NAME + default "bcmns" + +endif diff --git a/board/broadcom/bcmns/MAINTAINERS b/board/broadcom/bcmns/MAINTAINERS new file mode 100644 index 0000000..fd37c33 --- /dev/null +++ b/board/broadcom/bcmns/MAINTAINERS @@ -0,0 +1,6 @@ +BCMNS BOARD +M: Linus Walleij <linus.walleij@linaro.org> +S: Maintained +F: board/broadcom/bcmnsp/ +F: configs/bcmnsp_defconfig +F: include/configs/bcmnsp.h diff --git a/board/broadcom/bcmns/Makefile b/board/broadcom/bcmns/Makefile new file mode 100644 index 0000000..8a6a854 --- /dev/null +++ b/board/broadcom/bcmns/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +obj-y := ns.o diff --git a/board/broadcom/bcmns/ns.c b/board/broadcom/bcmns/ns.c new file mode 100644 index 0000000..1249e45 --- /dev/null +++ b/board/broadcom/bcmns/ns.c @@ -0,0 +1,60 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Broadcom Northstar generic board set-up code + * Copyright (C) 2023 Linus Walleij <linus.walleij@linaro.org> + */ + +#include <common.h> +#include <dm.h> +#include <init.h> +#include <log.h> +#include <ram.h> +#include <serial.h> +#include <asm/global_data.h> +#include <asm/io.h> +#include <asm/armv7m.h> + +DECLARE_GLOBAL_DATA_PTR; + +int dram_init(void) +{ + return fdtdec_setup_mem_size_base(); +} + +int dram_init_banksize(void) +{ + return fdtdec_setup_memory_banksize(); +} + +int board_late_init(void) +{ + /* LEDs etc can be initialized here */ + return 0; +} + +int board_init(void) +{ + return 0; +} + +void reset_cpu(void) +{ +} + +int print_cpuinfo(void) +{ + printf("BCMNS Northstar SoC\n"); + return 0; +} + +int misc_init_r(void) +{ + return 0; +} + +int ft_board_setup(void *fdt, struct bd_info *bd) +{ + printf("Northstar board setup: DTB at 0x%08lx\n", (ulong)fdt); + return 0; +} + diff --git a/configs/bcmns_defconfig b/configs/bcmns_defconfig new file mode 100644 index 0000000..02e2fbe --- /dev/null +++ b/configs/bcmns_defconfig @@ -0,0 +1,41 @@ +CONFIG_ARM=y +CONFIG_TARGET_BCMNS=y +CONFIG_TEXT_BASE=0x00008000 +CONFIG_SYS_MALLOC_LEN=0x2000000 +CONFIG_SYS_MALLOC_F_LEN=0x8000 +CONFIG_NR_DRAM_BANKS=2 +CONFIG_DEFAULT_DEVICE_TREE="ns-board" +CONFIG_IDENT_STRING="Broadcom Northstar" +CONFIG_SYS_LOAD_ADDR=0x00008000 +CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y +CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x00100000 +# CONFIG_BOOTSTD is not set +CONFIG_AUTOBOOT_KEYED=y +CONFIG_AUTOBOOT_PROMPT="Boot Northstar system in %d seconds\n" +CONFIG_BOOTDELAY=1 +CONFIG_USE_BOOTCOMMAND=y +CONFIG_BOOTCOMMAND="run bootcmd_dlink_dir8xxl" +CONFIG_SYS_PROMPT="northstar> " +CONFIG_ENV_VARS_UBOOT_CONFIG=y +CONFIG_OF_BOARD_SETUP=y +CONFIG_OF_STDOUT_VIA_ALIAS=y +CONFIG_DISPLAY_BOARDINFO_LATE=y +CONFIG_HUSH_PARSER=y +CONFIG_SYS_MAXARGS=64 +CONFIG_CMD_SEAMA=y +CONFIG_CMD_BOOTZ=y +CONFIG_CMD_CACHE=y +CONFIG_OF_EMBED=y +CONFIG_USE_HOSTNAME=y +CONFIG_HOSTNAME="NS" +CONFIG_CLK=y +CONFIG_MTD=y +CONFIG_DM_MTD=y +CONFIG_MTD_RAW_NAND=y +CONFIG_NAND_BRCMNAND=y +CONFIG_SYS_NAND_ONFI_DETECTION=y +CONFIG_CMD_NAND=y +CONFIG_DM_SERIAL=y +CONFIG_SYS_NS16550=y +# CONFIG_NET is not set +# CONFIG_EFI_LOADER is not set diff --git a/doc/board/broadcom/index.rst b/doc/board/broadcom/index.rst index a56bd1f..ca34afc 100644 --- a/doc/board/broadcom/index.rst +++ b/doc/board/broadcom/index.rst @@ -9,3 +9,4 @@ Broadcom bcm7xxx raspberrypi + northstar diff --git a/doc/board/broadcom/northstar.rst b/doc/board/broadcom/northstar.rst new file mode 100644 index 0000000..f4bc0ac --- /dev/null +++ b/doc/board/broadcom/northstar.rst @@ -0,0 +1,44 @@ +.. SPDX-License-Identifier: GPL-2.0+ +.. Copyright (C) 2023 Linus Walleij <linus.walleij@linaro.org> + +Broadcom Northstar Boards +========================= + +This document describes how to use U-Boot on the Broadcom Northstar +boards, comprised of the Cortex A9 ARM-based BCM470x and BCM5301x SoCs. These +were introduced in 2012-2013 and some of them are also called StrataGX. + +Northstar is part of the iProc SoC family. + +A good overview of these boards can be found in Jon Mason's presentation +"Enabling New Hardware in U-Boot" where the difference between Northstar +and Northstar Plus and Northstar 2 (Aarch64) is addressed. + +The ROM in the Northstar SoC will typically look into NOR flash memory +for a boot loader, and the way this works is undocumented. It should be +possible to execute U-Boot as the first binary from the NOR flash but +this usage path is unexplored. Please add information if you know more. + +D-Link Boards +------------- + +When we use U-Boot with D-Link routers, the NOR flash has a boot loader +and web server that can re-flash the bigger NAND flash memory for object +code in the SEAMA format, so on these platforms U-Boot is converted into +a SEAMA binary and installed in the SoC using the flash tool resident in +the NOR flash. Details can be found in the OpenWrt project codebase. + +Configure +--------- + +.. code-block:: console + + $ make CROSS_COMPILE=${CROSS_COMPILE} bcmns_defconfig + +Build +----- + +.. code-block:: console + + $ make CROSS_COMPILE=${CROSS_COMPILE} + $ ${CROSS_COMPILE}strip u-boot diff --git a/include/configs/bcmns.h b/include/configs/bcmns.h new file mode 100644 index 0000000..6f5f2b7 --- /dev/null +++ b/include/configs/bcmns.h @@ -0,0 +1,49 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ + +#ifndef __BCM_NS_H +#define __BCM_NS_H + +#include <linux/sizes.h> + +/* Physical Memory Map */ +#define V2M_BASE 0x00000000 +#define PHYS_SDRAM_1 V2M_BASE + +#define CFG_SYS_SDRAM_BASE PHYS_SDRAM_1 + +/* Called "periph_clk" in Linux, used by the global timer */ +#define CFG_SYS_HZ_CLOCK 500000000 + +/* Called "iprocslow" in Linux */ +#define CFG_SYS_NS16550_CLK 125000000 + +/* console configuration */ +#define CONSOLE_ARGS "console_args=console=ttyS0,115200n8\0" +#define MAX_CPUS "max_cpus=maxcpus=2\0" +#define EXTRA_ARGS "extra_args=earlycon=uart8250,mmio32,0x18000300\0" + +#define BASE_ARGS "${console_args} ${extra_args} ${pcie_args}" \ + " ${max_cpus} ${log_level} ${reserved_mem}" +#define SETBOOTARGS "setbootargs=setenv bootargs " BASE_ARGS "\0" + +#define KERNEL_LOADADDR_CFG \ + "loadaddr=0x01000000\0" \ + "dtb_loadaddr=0x02000000\0" + +/* + * Hardcoded for the only boards we support, if you add more + * boards, add a more clever bootcmd! + */ +#define NS_BOOTCMD "bootcmd_dlink_dir8xxl=seama 0x00fe0000; go 0x01000000" + +#define ARCH_ENV_SETTINGS \ + CONSOLE_ARGS \ + MAX_CPUS \ + EXTRA_ARGS \ + KERNEL_LOADADDR_CFG \ + NS_BOOTCMD + +#define CFG_EXTRA_ENV_SETTINGS \ + ARCH_ENV_SETTINGS + +#endif /* __BCM_NS_H */ |