package/boot/uboot-bcm53xx/patches/0005-board-Add-new-Broadcom-Northstar-board.patch

   1 From 652a6fa45b6c9d52dd9685fc12ad662e54a9092e Mon Sep 17 00:00:00 2001
   2 From: Linus Walleij <linus.walleij@linaro.org>
   3 Date: Mon, 24 Apr 2023 09:38:30 +0200
   4 Subject: [PATCH 5/5] board: Add new Broadcom Northstar board
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 This adds a simple Northstar "BRCMNS" board to be used with
  10 the BCM4708x and BCM5301x chips.
  11
  12 The main intention is to use this with the D-Link DIR-890L
  13 and DIR-885L routers for loading the kernel into RAM from
  14 NAND memory using the BCH-1 ECC and using the separately
  15 submitted SEAMA load command, so we are currently not adding
  16 support for things such as networking.
  17
  18 The DTS file is a multiplatform NorthStar board, designed to
  19 be usable with several NorthStar designs by avoiding any
  20 particulars not related to the operation of U-Boot.
  21
  22 If other board need other ECC for example, they need to
  23 create a separate DTS file and augment the code, but I don't
  24 know if any other users will turn up.
  25
  26 Cc: Rafał Miłecki <rafal@milecki.pl>
  27 Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
  28 ---
  29  arch/arm/Kconfig                 |  1 +
  30  arch/arm/dts/Makefile            |  2 ++
  31  arch/arm/dts/ns-board.dts        | 57 ++++++++++++++++++++++++++++++
  32  board/broadcom/bcmns/Kconfig     | 12 +++++++
  33  board/broadcom/bcmns/MAINTAINERS |  6 ++++
  34  board/broadcom/bcmns/Makefile    |  2 ++
  35  board/broadcom/bcmns/ns.c        | 60 ++++++++++++++++++++++++++++++++
  36  configs/bcmns_defconfig          | 41 ++++++++++++++++++++++
  37  doc/board/broadcom/index.rst     |  1 +
  38  doc/board/broadcom/northstar.rst | 44 +++++++++++++++++++++++
  39  include/configs/bcmns.h          | 49 ++++++++++++++++++++++++++
  40  11 files changed, 275 insertions(+)
  41  create mode 100644 arch/arm/dts/ns-board.dts
  42  create mode 100644 board/broadcom/bcmns/Kconfig
  43  create mode 100644 board/broadcom/bcmns/MAINTAINERS
  44  create mode 100644 board/broadcom/bcmns/Makefile
  45  create mode 100644 board/broadcom/bcmns/ns.c
  46  create mode 100644 configs/bcmns_defconfig
  47  create mode 100644 doc/board/broadcom/northstar.rst
  48  create mode 100644 include/configs/bcmns.h
  49
  50 --- a/arch/arm/Kconfig
  51 +++ b/arch/arm/Kconfig
  52 @@ -2286,6 +2286,7 @@ source "board/Marvell/octeontx2/Kconfig"
  53  source "board/armltd/vexpress/Kconfig"
  54  source "board/armltd/vexpress64/Kconfig"
  55  source "board/cortina/presidio-asic/Kconfig"
  56 +source "board/broadcom/bcmns/Kconfig"
  57  source "board/broadcom/bcmns3/Kconfig"
  58  source "board/cavium/thunderx/Kconfig"
  59  source "board/eets/pdu001/Kconfig"
  60 --- a/arch/arm/dts/Makefile
  61 +++ b/arch/arm/dts/Makefile
  62 @@ -1185,6 +1185,8 @@ dtb-$(CONFIG_ARCH_BCM283X) += \
  63         bcm2837-rpi-cm3-io3.dtb \
  64         bcm2711-rpi-4-b.dtb
  65
  66 +dtb-$(CONFIG_TARGET_BCMNS) += ns-board.dtb
  67 +
  68  dtb-$(CONFIG_TARGET_BCMNS3) += ns3-board.dtb
  69
  70  dtb-$(CONFIG_ARCH_BCMSTB) += bcm7xxx.dtb
  71 --- /dev/null
  72 +++ b/arch/arm/dts/ns-board.dts
  73 @@ -0,0 +1,57 @@
  74 +// SPDX-License-Identifier:      GPL-2.0+
  75 +
  76 +/dts-v1/;
  77 +
  78 +#include "bcm5301x.dtsi"
  79 +
  80 +/ {
  81 +       /*
  82 +        * The Northstar does not have a proper fallback compatible, but
  83 +        * these basic chips will suffice.
  84 +        */
  85 +       model = "Northstar model";
  86 +       compatible = "brcm,bcm47094", "brcm,bcm4708";
  87 +       #address-cells = <1>;
  88 +       #size-cells = <1>;
  89 +       interrupt-parent = <&gic>;
  90 +
  91 +       memory {
  92 +               device_type = "memory";
  93 +               reg = <0x00000000 0x08000000>,
  94 +                     <0x88000000 0x08000000>;
  95 +       };
  96 +
  97 +       aliases {
  98 +               serial0 = &uart0;
  99 +       };
 100 +
 101 +       chosen {
 102 +               stdout-path = "serial0:115200n8";
 103 +       };
 104 +
 105 +       nand-controller@18028000 {
 106 +               nandcs: nand@0 {
 107 +                       compatible = "brcm,nandcs";
 108 +                       reg = <0>;
 109 +                       #address-cells = <1>;
 110 +                       #size-cells = <1>;
 111 +
 112 +                       /*
 113 +                        * Same as using the bcm5301x-nand-cs0-bch1.dtsi
 114 +                        * include from the Linux kernel.
 115 +                        */
 116 +                       nand-ecc-algo = "bch";
 117 +                       nand-ecc-strength = <1>;
 118 +                       nand-ecc-step-size = <512>;
 119 +
 120 +                       partitions {
 121 +                               compatible = "brcm,bcm947xx-cfe-partitions";
 122 +                       };
 123 +               };
 124 +       };
 125 +};
 126 +
 127 +&uart0 {
 128 +       clock-frequency = <125000000>;
 129 +       status = "okay";
 130 +};
 131 --- /dev/null
 132 +++ b/board/broadcom/bcmns/Kconfig
 133 @@ -0,0 +1,12 @@
 134 +if TARGET_BCMNS
 135 +
 136 +config SYS_BOARD
 137 +       default "bcmns"
 138 +
 139 +config SYS_VENDOR
 140 +       default "broadcom"
 141 +
 142 +config SYS_CONFIG_NAME
 143 +       default "bcmns"
 144 +
 145 +endif
 146 --- /dev/null
 147 +++ b/board/broadcom/bcmns/MAINTAINERS
 148 @@ -0,0 +1,6 @@
 149 +BCMNS BOARD
 150 +M:     Linus Walleij <linus.walleij@linaro.org>
 151 +S:     Maintained
 152 +F:     board/broadcom/bcmnsp/
 153 +F:     configs/bcmnsp_defconfig
 154 +F:     include/configs/bcmnsp.h
 155 --- /dev/null
 156 +++ b/board/broadcom/bcmns/Makefile
 157 @@ -0,0 +1,2 @@
 158 +# SPDX-License-Identifier: GPL-2.0-or-later
 159 +obj-y  := ns.o
 160 --- /dev/null
 161 +++ b/board/broadcom/bcmns/ns.c
 162 @@ -0,0 +1,60 @@
 163 +// SPDX-License-Identifier: GPL-2.0+
 164 +/*
 165 + * Broadcom Northstar generic board set-up code
 166 + * Copyright (C) 2023 Linus Walleij <linus.walleij@linaro.org>
 167 + */
 168 +
 169 +#include <common.h>
 170 +#include <dm.h>
 171 +#include <init.h>
 172 +#include <log.h>
 173 +#include <ram.h>
 174 +#include <serial.h>
 175 +#include <asm/global_data.h>
 176 +#include <asm/io.h>
 177 +#include <asm/armv7m.h>
 178 +
 179 +DECLARE_GLOBAL_DATA_PTR;
 180 +
 181 +int dram_init(void)
 182 +{
 183 +       return fdtdec_setup_mem_size_base();
 184 +}
 185 +
 186 +int dram_init_banksize(void)
 187 +{
 188 +       return fdtdec_setup_memory_banksize();
 189 +}
 190 +
 191 +int board_late_init(void)
 192 +{
 193 +       /* LEDs etc can be initialized here */
 194 +       return 0;
 195 +}
 196 +
 197 +int board_init(void)
 198 +{
 199 +       return 0;
 200 +}
 201 +
 202 +void reset_cpu(void)
 203 +{
 204 +}
 205 +
 206 +int print_cpuinfo(void)
 207 +{
 208 +       printf("BCMNS Northstar SoC\n");
 209 +       return 0;
 210 +}
 211 +
 212 +int misc_init_r(void)
 213 +{
 214 +       return 0;
 215 +}
 216 +
 217 +int ft_board_setup(void *fdt, struct bd_info *bd)
 218 +{
 219 +       printf("Northstar board setup: DTB at 0x%08lx\n", (ulong)fdt);
 220 +       return 0;
 221 +}
 222 +
 223 --- /dev/null
 224 +++ b/configs/bcmns_defconfig
 225 @@ -0,0 +1,41 @@
 226 +CONFIG_ARM=y
 227 +CONFIG_TARGET_BCMNS=y
 228 +CONFIG_TEXT_BASE=0x00008000
 229 +CONFIG_SYS_MALLOC_LEN=0x2000000
 230 +CONFIG_SYS_MALLOC_F_LEN=0x8000
 231 +CONFIG_NR_DRAM_BANKS=2
 232 +CONFIG_DEFAULT_DEVICE_TREE="ns-board"
 233 +CONFIG_IDENT_STRING="Broadcom Northstar"
 234 +CONFIG_SYS_LOAD_ADDR=0x00008000
 235 +CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
 236 +CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x00100000
 237 +# CONFIG_BOOTSTD is not set
 238 +CONFIG_AUTOBOOT_KEYED=y
 239 +CONFIG_AUTOBOOT_PROMPT="Boot Northstar system in %d seconds\n"
 240 +CONFIG_BOOTDELAY=1
 241 +CONFIG_USE_BOOTCOMMAND=y
 242 +CONFIG_BOOTCOMMAND="run bootcmd_dlink_dir8xxl"
 243 +CONFIG_SYS_PROMPT="northstar> "
 244 +CONFIG_ENV_VARS_UBOOT_CONFIG=y
 245 +CONFIG_OF_BOARD_SETUP=y
 246 +CONFIG_OF_STDOUT_VIA_ALIAS=y
 247 +CONFIG_DISPLAY_BOARDINFO_LATE=y
 248 +CONFIG_HUSH_PARSER=y
 249 +CONFIG_SYS_MAXARGS=64
 250 +CONFIG_CMD_SEAMA=y
 251 +CONFIG_CMD_BOOTZ=y
 252 +CONFIG_CMD_CACHE=y
 253 +CONFIG_OF_EMBED=y
 254 +CONFIG_USE_HOSTNAME=y
 255 +CONFIG_HOSTNAME="NS"
 256 +CONFIG_CLK=y
 257 +CONFIG_MTD=y
 258 +CONFIG_DM_MTD=y
 259 +CONFIG_MTD_RAW_NAND=y
 260 +CONFIG_NAND_BRCMNAND=y
 261 +CONFIG_SYS_NAND_ONFI_DETECTION=y
 262 +CONFIG_CMD_NAND=y
 263 +CONFIG_DM_SERIAL=y
 264 +CONFIG_SYS_NS16550=y
 265 +# CONFIG_NET is not set
 266 +# CONFIG_EFI_LOADER is not set
 267 --- a/doc/board/broadcom/index.rst
 268 +++ b/doc/board/broadcom/index.rst
 269 @@ -9,3 +9,4 @@ Broadcom
 270
 271     bcm7xxx
 272     raspberrypi
 273 +   northstar
 274 --- /dev/null
 275 +++ b/doc/board/broadcom/northstar.rst
 276 @@ -0,0 +1,44 @@
 277 +.. SPDX-License-Identifier: GPL-2.0+
 278 +.. Copyright (C) 2023 Linus Walleij <linus.walleij@linaro.org>
 279 +
 280 +Broadcom Northstar Boards
 281 +=========================
 282 +
 283 +This document describes how to use U-Boot on the Broadcom Northstar
 284 +boards, comprised of the Cortex A9 ARM-based BCM470x and BCM5301x SoCs. These
 285 +were introduced in 2012-2013 and some of them are also called StrataGX.
 286 +
 287 +Northstar is part of the iProc SoC family.
 288 +
 289 +A good overview of these boards can be found in Jon Mason's presentation
 290 +"Enabling New Hardware in U-Boot" where the difference between Northstar
 291 +and Northstar Plus and Northstar 2 (Aarch64) is addressed.
 292 +
 293 +The ROM in the Northstar SoC will typically look into NOR flash memory
 294 +for a boot loader, and the way this works is undocumented. It should be
 295 +possible to execute U-Boot as the first binary from the NOR flash but
 296 +this usage path is unexplored. Please add information if you know more.
 297 +
 298 +D-Link Boards
 299 +-------------
 300 +
 301 +When we use U-Boot with D-Link routers, the NOR flash has a boot loader
 302 +and web server that can re-flash the bigger NAND flash memory for object
 303 +code in the SEAMA format, so on these platforms U-Boot is converted into
 304 +a SEAMA binary and installed in the SoC using the flash tool resident in
 305 +the NOR flash. Details can be found in the OpenWrt project codebase.
 306 +
 307 +Configure
 308 +---------
 309 +
 310 +.. code-block:: console
 311 +
 312 +       $ make CROSS_COMPILE=${CROSS_COMPILE} bcmns_defconfig
 313 +
 314 +Build
 315 +-----
 316 +
 317 +.. code-block:: console
 318 +
 319 +       $ make CROSS_COMPILE=${CROSS_COMPILE}
 320 +       $ ${CROSS_COMPILE}strip u-boot
 321 --- /dev/null
 322 +++ b/include/configs/bcmns.h
 323 @@ -0,0 +1,49 @@
 324 +/* SPDX-License-Identifier: GPL-2.0+ */
 325 +
 326 +#ifndef __BCM_NS_H
 327 +#define __BCM_NS_H
 328 +
 329 +#include <linux/sizes.h>
 330 +
 331 +/* Physical Memory Map */
 332 +#define V2M_BASE                       0x00000000
 333 +#define PHYS_SDRAM_1                   V2M_BASE
 334 +
 335 +#define CFG_SYS_SDRAM_BASE             PHYS_SDRAM_1
 336 +
 337 +/* Called "periph_clk" in Linux, used by the global timer */
 338 +#define CFG_SYS_HZ_CLOCK               500000000
 339 +
 340 +/* Called "iprocslow" in Linux */
 341 +#define CFG_SYS_NS16550_CLK            125000000
 342 +
 343 +/* console configuration */
 344 +#define CONSOLE_ARGS "console_args=console=ttyS0,115200n8\0"
 345 +#define MAX_CPUS "max_cpus=maxcpus=2\0"
 346 +#define EXTRA_ARGS "extra_args=earlycon=uart8250,mmio32,0x18000300\0"
 347 +
 348 +#define BASE_ARGS "${console_args} ${extra_args} ${pcie_args}" \
 349 +                 " ${max_cpus}  ${log_level} ${reserved_mem}"
 350 +#define SETBOOTARGS "setbootargs=setenv bootargs " BASE_ARGS "\0"
 351 +
 352 +#define KERNEL_LOADADDR_CFG \
 353 +       "loadaddr=0x01000000\0" \
 354 +       "dtb_loadaddr=0x02000000\0"
 355 +
 356 +/*
 357 + * Hardcoded for the only boards we support, if you add more
 358 + * boards, add a more clever bootcmd!
 359 + */
 360 +#define NS_BOOTCMD "bootcmd_dlink_dir8xxl=seama 0x00fe0000; go 0x01000000"
 361 +
 362 +#define ARCH_ENV_SETTINGS \
 363 +       CONSOLE_ARGS \
 364 +       MAX_CPUS \
 365 +       EXTRA_ARGS \
 366 +       KERNEL_LOADADDR_CFG \
 367 +       NS_BOOTCMD
 368 +
 369 +#define CFG_EXTRA_ENV_SETTINGS \
 370 +       ARCH_ENV_SETTINGS
 371 +
 372 +#endif /* __BCM_NS_H */