[openwrt/openwrt] uboot-bcm53xx: Add U-Boot for NorthStar BCM53xx
LEDE Commits
lede-commits at lists.infradead.org
Sun Aug 20 09:09:29 PDT 2023
rmilecki pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/f2a8763587fb98862dd36ee05bd5e17e46155422
commit f2a8763587fb98862dd36ee05bd5e17e46155422
Author: Linus Walleij <linus.walleij at linaro.org>
AuthorDate: Mon Jun 19 08:36:15 2023 +0200
uboot-bcm53xx: Add U-Boot for NorthStar BCM53xx
I recently added support for the NorthStar ARM BCM53xx SoCs
to the upstream U-Boot. This is a back port on top of the
2023.04 version already imported to OpenWrt with the 5 necessary
upstream patches.
This is needed to create a small U-Boot for the BCM53xx-based
D-Link DIR-890L and I think also the DIR-885L, so that a
recent (bigger) kernel can be loaded and executed from the
SEAMA partitions on these devices.
Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
---
.github/labeler.yml | 1 +
package/boot/uboot-bcm53xx/Makefile | 37 ++
.../0001-nand-brcmnand-add-iproc-support.patch | 199 +++++++
...nand-nand_base-Handle-algorithm-selection.patch | 80 +++
...Import-device-tree-for-Broadcom-Northstar.patch | 659 +++++++++++++++++++++
...d-support-for-the-Broadcom-Northstar-SoCs.patch | 66 +++
...05-board-Add-new-Broadcom-Northstar-board.patch | 372 ++++++++++++
7 files changed, 1414 insertions(+)
diff --git a/.github/labeler.yml b/.github/labeler.yml
index e22f074604..c8f8466d4a 100644
--- a/.github/labeler.yml
+++ b/.github/labeler.yml
@@ -25,6 +25,7 @@
- "package/boot/uboot-bcm4908/**"
"target/bcm53xx":
- "target/linux/bcm53xx/**"
+ - "package/boot/uboot-bcm53xx/**"
"target/bcm63xx":
- "target/linux/bcm63xx/**"
- "package/kernel/bcm63xx-cfe/**"
diff --git a/package/boot/uboot-bcm53xx/Makefile b/package/boot/uboot-bcm53xx/Makefile
new file mode 100644
index 0000000000..ab80b9608a
--- /dev/null
+++ b/package/boot/uboot-bcm53xx/Makefile
@@ -0,0 +1,37 @@
+include $(TOPDIR)/rules.mk
+
+PKG_VERSION:=2023.04
+PKG_HASH:=e31cac91545ff41b71cec5d8c22afd695645cd6e2a442ccdacacd60534069341
+PKG_RELEASE:=$(AUTORELEASE)
+
+include $(INCLUDE_DIR)/u-boot.mk
+include $(INCLUDE_DIR)/package.mk
+
+define U-Boot/Default
+ BUILD_TARGET:=bcm53xx
+ BUILD_SUBTARGET:=generic
+ UBOOT_CONFIG:=bcmns
+ UBOOT_BOARD:=$(1)
+endef
+
+define U-Boot/dir-885l
+ NAME:=D-Link DIR-885L
+ BUILD_DEVICES:=dlink_dir-885l
+endef
+
+define U-Boot/dir-890l
+ NAME:=D-Link DIR-890L
+ BUILD_DEVICES:=dlink_dir-890l
+endef
+
+UBOOT_TARGETS := dir-885l dir-890l
+
+define Build/InstallDev
+ $(INSTALL_DIR) $(STAGING_DIR_IMAGE)
+ $(CP) $(PKG_BUILD_DIR)/$(UBOOT_IMAGE) $(STAGING_DIR_IMAGE)/$(BUILD_DEVICES)-u-boot.bin
+endef
+
+define Package/u-boot/install/default
+endef
+
+$(eval $(call BuildPackage/U-Boot))
diff --git a/package/boot/uboot-bcm53xx/patches/0001-nand-brcmnand-add-iproc-support.patch b/package/boot/uboot-bcm53xx/patches/0001-nand-brcmnand-add-iproc-support.patch
new file mode 100644
index 0000000000..fe6f4d944a
--- /dev/null
+++ b/package/boot/uboot-bcm53xx/patches/0001-nand-brcmnand-add-iproc-support.patch
@@ -0,0 +1,199 @@
+From 854dc4b790ce1291326d52b8405ebe771bff2edd Mon Sep 17 00:00:00 2001
+From: Linus Walleij <linus.walleij at linaro.org>
+Date: Wed, 8 Mar 2023 22:42:31 +0100
+Subject: [PATCH 1/5] nand: brcmnand: add iproc support
+
+Add support for the iproc Broadcom NAND controller,
+used in Northstar SoCs for example. Based on the Linux
+driver.
+
+Cc: Philippe Reynes <philippe.reynes at softathome.com>
+Cc: Dario Binacchi <dario.binacchi at amarulasolutions.com>
+Reviewed-by: Michael Trimarchi <michael at amarulasolutions.com>
+Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
+Acked-by: William Zhang <william.zhang at broadcom.com>
+Link: https://lore.kernel.org/all/20230308214231.378013-1-linus.walleij@linaro.org/
+Signed-off-by: Dario Binacchi <dario.binacchi at amarulasolutions.com>
+---
+ drivers/mtd/nand/raw/Kconfig | 7 +
+ drivers/mtd/nand/raw/brcmnand/Makefile | 1 +
+ drivers/mtd/nand/raw/brcmnand/iproc_nand.c | 148 +++++++++++++++++++++
+ 3 files changed, 156 insertions(+)
+ create mode 100644 drivers/mtd/nand/raw/brcmnand/iproc_nand.c
+
+--- a/drivers/mtd/nand/raw/Kconfig
++++ b/drivers/mtd/nand/raw/Kconfig
+@@ -156,6 +156,13 @@ config NAND_BRCMNAND_63158
+ help
+ Enable support for broadcom nand driver on bcm63158.
+
++config NAND_BRCMNAND_IPROC
++ bool "Support Broadcom NAND controller on the iproc family"
++ depends on NAND_BRCMNAND
++ help
++ Enable support for broadcom nand driver on the Broadcom
++ iproc family such as Northstar (BCM5301x, BCM4708...)
++
+ config NAND_DAVINCI
+ bool "Support TI Davinci NAND controller"
+ select SYS_NAND_SELF_INIT if TARGET_DA850EVM
+--- a/drivers/mtd/nand/raw/brcmnand/Makefile
++++ b/drivers/mtd/nand/raw/brcmnand/Makefile
+@@ -6,5 +6,6 @@ obj-$(CONFIG_NAND_BRCMNAND_6753) += bcm6
+ obj-$(CONFIG_NAND_BRCMNAND_68360) += bcm68360_nand.o
+ obj-$(CONFIG_NAND_BRCMNAND_6838) += bcm6838_nand.o
+ obj-$(CONFIG_NAND_BRCMNAND_6858) += bcm6858_nand.o
++obj-$(CONFIG_NAND_BRCMNAND_IPROC) += iproc_nand.o
+ obj-$(CONFIG_NAND_BRCMNAND) += brcmnand.o
+ obj-$(CONFIG_NAND_BRCMNAND) += brcmnand_compat.o
+--- /dev/null
++++ b/drivers/mtd/nand/raw/brcmnand/iproc_nand.c
+@@ -0,0 +1,148 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Code borrowed from the Linux driver
++ * Copyright (C) 2015 Broadcom Corporation
++ */
++
++#include <common.h>
++#include <asm/io.h>
++#include <memalign.h>
++#include <nand.h>
++#include <linux/bitops.h>
++#include <linux/err.h>
++#include <linux/errno.h>
++#include <linux/io.h>
++#include <linux/ioport.h>
++#include <dm.h>
++
++#include "brcmnand.h"
++
++struct iproc_nand_soc {
++ struct brcmnand_soc soc;
++ void __iomem *idm_base;
++ void __iomem *ext_base;
++};
++
++#define IPROC_NAND_CTLR_READY_OFFSET 0x10
++#define IPROC_NAND_CTLR_READY BIT(0)
++
++#define IPROC_NAND_IO_CTRL_OFFSET 0x00
++#define IPROC_NAND_APB_LE_MODE BIT(24)
++#define IPROC_NAND_INT_CTRL_READ_ENABLE BIT(6)
++
++static bool iproc_nand_intc_ack(struct brcmnand_soc *soc)
++{
++ struct iproc_nand_soc *priv =
++ container_of(soc, struct iproc_nand_soc, soc);
++ void __iomem *mmio = priv->ext_base + IPROC_NAND_CTLR_READY_OFFSET;
++ u32 val = brcmnand_readl(mmio);
++
++ if (val & IPROC_NAND_CTLR_READY) {
++ brcmnand_writel(IPROC_NAND_CTLR_READY, mmio);
++ return true;
++ }
++
++ return false;
++}
++
++static void iproc_nand_intc_set(struct brcmnand_soc *soc, bool en)
++{
++ struct iproc_nand_soc *priv =
++ container_of(soc, struct iproc_nand_soc, soc);
++ void __iomem *mmio = priv->idm_base + IPROC_NAND_IO_CTRL_OFFSET;
++ u32 val = brcmnand_readl(mmio);
++
++ if (en)
++ val |= IPROC_NAND_INT_CTRL_READ_ENABLE;
++ else
++ val &= ~IPROC_NAND_INT_CTRL_READ_ENABLE;
++
++ brcmnand_writel(val, mmio);
++}
++
++static void iproc_nand_apb_access(struct brcmnand_soc *soc, bool prepare,
++ bool is_param)
++{
++ struct iproc_nand_soc *priv =
++ container_of(soc, struct iproc_nand_soc, soc);
++ void __iomem *mmio = priv->idm_base + IPROC_NAND_IO_CTRL_OFFSET;
++ u32 val;
++
++ val = brcmnand_readl(mmio);
++
++ /*
++ * In the case of BE or when dealing with NAND data, always configure
++ * the APB bus to LE mode before accessing the FIFO and back to BE mode
++ * after the access is done
++ */
++ if (IS_ENABLED(CONFIG_SYS_BIG_ENDIAN) || !is_param) {
++ if (prepare)
++ val |= IPROC_NAND_APB_LE_MODE;
++ else
++ val &= ~IPROC_NAND_APB_LE_MODE;
++ } else { /* when in LE accessing the parameter page, keep APB in BE */
++ val &= ~IPROC_NAND_APB_LE_MODE;
++ }
++
++ brcmnand_writel(val, mmio);
++}
++
++static int iproc_nand_probe(struct udevice *dev)
++{
++ struct udevice *pdev = dev;
++ struct iproc_nand_soc *priv = dev_get_priv(dev);
++ struct brcmnand_soc *soc;
++ struct resource res;
++ int ret;
++
++ soc = &priv->soc;
++
++ ret = dev_read_resource_byname(pdev, "iproc-idm", &res);
++ if (ret)
++ return ret;
++
++ priv->idm_base = devm_ioremap(dev, res.start, resource_size(&res));
++ if (IS_ERR(priv->idm_base))
++ return PTR_ERR(priv->idm_base);
++
++ ret = dev_read_resource_byname(pdev, "iproc-ext", &res);
++ if (ret)
++ return ret;
++
++ priv->ext_base = devm_ioremap(dev, res.start, resource_size(&res));
++ if (IS_ERR(priv->ext_base))
++ return PTR_ERR(priv->ext_base);
++
++ soc->ctlrdy_ack = iproc_nand_intc_ack;
++ soc->ctlrdy_set_enabled = iproc_nand_intc_set;
++ soc->prepare_data_bus = iproc_nand_apb_access;
++
++ return brcmnand_probe(pdev, soc);
++}
++
++static const struct udevice_id iproc_nand_dt_ids[] = {
++ {
++ .compatible = "brcm,nand-iproc",
++ },
++ { /* sentinel */ }
++};
++
++U_BOOT_DRIVER(iproc_nand) = {
++ .name = "iproc-nand",
++ .id = UCLASS_MTD,
++ .of_match = iproc_nand_dt_ids,
++ .probe = iproc_nand_probe,
++ .priv_auto = sizeof(struct iproc_nand_soc),
++};
++
++void board_nand_init(void)
++{
++ struct udevice *dev;
++ int ret;
++
++ ret = uclass_get_device_by_driver(UCLASS_MTD,
++ DM_DRIVER_GET(iproc_nand), &dev);
++ if (ret && ret != -ENODEV)
++ pr_err("Failed to initialize %s. (error %d)\n", dev->name,
++ ret);
++}
diff --git a/package/boot/uboot-bcm53xx/patches/0002-mtd-rawnand-nand_base-Handle-algorithm-selection.patch b/package/boot/uboot-bcm53xx/patches/0002-mtd-rawnand-nand_base-Handle-algorithm-selection.patch
new file mode 100644
index 0000000000..eb2a5ec703
--- /dev/null
+++ b/package/boot/uboot-bcm53xx/patches/0002-mtd-rawnand-nand_base-Handle-algorithm-selection.patch
@@ -0,0 +1,80 @@
+From d75483f8892f3a0dfb8f5aa4147e72c02c8b034c Mon Sep 17 00:00:00 2001
+From: Linus Walleij <linus.walleij at linaro.org>
+Date: Fri, 7 Apr 2023 15:40:05 +0200
+Subject: [PATCH 2/5] mtd: rawnand: nand_base: Handle algorithm selection
+
+For BRCMNAND with 1-bit BCH ECC (BCH-1) such as used on the
+D-Link DIR-885L and DIR-890L routers, we need to explicitly
+select the ECC like this in the device tree:
+
+ nand-ecc-algo = "bch";
+ nand-ecc-strength = <1>;
+ nand-ecc-step-size = <512>;
+
+This is handled by the Linux kernel but U-Boot core does
+not respect this. Fix it up by parsing the algorithm and
+preserve the behaviour using this property to select
+software BCH as far as possible.
+
+Reviewed-by: Michael Trimarchi <michael at amarulasolutions.com>
+Acked-by: William Zhang <william.zhang at broadcom.com>
+Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
+Tested-by: Tom Rini <trini at konsulko.com> [am335x_evm]
+Link: https://lore.kernel.org/all/20230407134008.1939717-3-linus.walleij@linaro.org/
+Signed-off-by: Dario Binacchi <dario.binacchi at amarulasolutions.com>
+---
+ drivers/mtd/nand/raw/nand_base.c | 29 +++++++++++++++++++++++++----
+ 1 file changed, 25 insertions(+), 4 deletions(-)
+
+--- a/drivers/mtd/nand/raw/nand_base.c
++++ b/drivers/mtd/nand/raw/nand_base.c
+@@ -4487,6 +4487,7 @@ EXPORT_SYMBOL(nand_detect);
+ static int nand_dt_init(struct mtd_info *mtd, struct nand_chip *chip, ofnode node)
+ {
+ int ret, ecc_mode = -1, ecc_strength, ecc_step;
++ int ecc_algo = NAND_ECC_UNKNOWN;
+ const char *str;
+
+ ret = ofnode_read_s32_default(node, "nand-bus-width", -1);
+@@ -4512,10 +4513,22 @@ static int nand_dt_init(struct mtd_info
+ ecc_mode = NAND_ECC_SOFT_BCH;
+ }
+
+- if (ecc_mode == NAND_ECC_SOFT) {
+- str = ofnode_read_string(node, "nand-ecc-algo");
+- if (str && !strcmp(str, "bch"))
+- ecc_mode = NAND_ECC_SOFT_BCH;
++ str = ofnode_read_string(node, "nand-ecc-algo");
++ if (str) {
++ /*
++ * If we are in NAND_ECC_SOFT mode, just alter the
++ * soft mode to BCH here. No change of algorithm.
++ */
++ if (ecc_mode == NAND_ECC_SOFT) {
++ if (!strcmp(str, "bch"))
++ ecc_mode = NAND_ECC_SOFT_BCH;
++ } else {
++ if (!strcmp(str, "bch")) {
++ ecc_algo = NAND_ECC_BCH;
++ } else if (!strcmp(str, "hamming")) {
++ ecc_algo = NAND_ECC_HAMMING;
++ }
++ }
+ }
+
+ ecc_strength = ofnode_read_s32_default(node,
+@@ -4529,6 +4542,14 @@ static int nand_dt_init(struct mtd_info
+ return -EINVAL;
+ }
+
++ /*
++ * Chip drivers may have assigned default algorithms here,
++ * onlt override it if we have found something explicitly
++ * specified in the device tree.
++ */
++ if (ecc_algo != NAND_ECC_UNKNOWN)
++ chip->ecc.algo = ecc_algo;
++
+ if (ecc_mode >= 0)
+ chip->ecc.mode = ecc_mode;
+
diff --git a/package/boot/uboot-bcm53xx/patches/0003-arm-dts-Import-device-tree-for-Broadcom-Northstar.patch b/package/boot/uboot-bcm53xx/patches/0003-arm-dts-Import-device-tree-for-Broadcom-Northstar.patch
new file mode 100644
index 0000000000..6a4eef77f8
--- /dev/null
+++ b/package/boot/uboot-bcm53xx/patches/0003-arm-dts-Import-device-tree-for-Broadcom-Northstar.patch
@@ -0,0 +1,659 @@
+From 3d6098a662b7ff5b80c4b75c54fcd1b2baf9f150 Mon Sep 17 00:00:00 2001
+From: Linus Walleij <linus.walleij at linaro.org>
+Date: Mon, 24 Apr 2023 09:38:28 +0200
+Subject: [PATCH 3/5] arm: dts: Import device tree for Broadcom Northstar
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This brings in the main SoC device tree used by the
+Broadcom Northstar chipset, i.e. BCM4709x and BCM5301x.
+This is taken from the v6.3 Linux kernel.
+
+Cc: Rafał Miłecki <rafal at milecki.pl>
+Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
+---
+ arch/arm/dts/bcm5301x.dtsi | 581 ++++++++++++++++++++++++++++
+ include/dt-bindings/clock/bcm-nsp.h | 51 +++
+ 2 files changed, 632 insertions(+)
+ create mode 100644 arch/arm/dts/bcm5301x.dtsi
+ create mode 100644 include/dt-bindings/clock/bcm-nsp.h
+
+--- /dev/null
++++ b/arch/arm/dts/bcm5301x.dtsi
+@@ -0,0 +1,581 @@
++/*
++ * Broadcom BCM470X / BCM5301X ARM platform code.
++ * Generic DTS part for all BCM53010, BCM53011, BCM53012, BCM53014, BCM53015,
++ * BCM53016, BCM53017, BCM53018, BCM4707, BCM4708 and BCM4709 SoCs
++ *
++ * Copyright 2013-2014 Hauke Mehrtens <hauke at hauke-m.de>
++ *
++ * Licensed under the GNU/GPL. See COPYING for details.
++ */
++
++#include <dt-bindings/clock/bcm-nsp.h>
++#include <dt-bindings/gpio/gpio.h>
++#include <dt-bindings/input/input.h>
++#include <dt-bindings/interrupt-controller/irq.h>
++#include <dt-bindings/interrupt-controller/arm-gic.h>
++
++/ {
++ #address-cells = <1>;
++ #size-cells = <1>;
++ interrupt-parent = <&gic>;
++
++ chipcommon-a-bus at 18000000 {
++ compatible = "simple-bus";
++ ranges = <0x00000000 0x18000000 0x00001000>;
++ #address-cells = <1>;
++ #size-cells = <1>;
++
++ uart0: serial at 300 {
++ compatible = "ns16550";
++ reg = <0x0300 0x100>;
++ interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
++ clocks = <&iprocslow>;
++ status = "disabled";
++ };
++
++ uart1: serial at 400 {
++ compatible = "ns16550";
++ reg = <0x0400 0x100>;
++ interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
++ clocks = <&iprocslow>;
++ pinctrl-names = "default";
++ pinctrl-0 = <&pinmux_uart1>;
++ status = "disabled";
++ };
++ };
++
++ mpcore-bus at 19000000 {
++ compatible = "simple-bus";
++ ranges = <0x00000000 0x19000000 0x00023000>;
++ #address-cells = <1>;
++ #size-cells = <1>;
++
++ a9pll: arm_clk at 0 {
++ #clock-cells = <0>;
++ compatible = "brcm,nsp-armpll";
++ clocks = <&osc>;
++ reg = <0x00000 0x1000>;
++ };
++
++ scu at 20000 {
++ compatible = "arm,cortex-a9-scu";
++ reg = <0x20000 0x100>;
++ };
++
++ timer at 20200 {
++ compatible = "arm,cortex-a9-global-timer";
++ reg = <0x20200 0x100>;
++ interrupts = <GIC_PPI 11 IRQ_TYPE_EDGE_RISING>;
++ clocks = <&periph_clk>;
++ };
++
++ timer at 20600 {
++ compatible = "arm,cortex-a9-twd-timer";
++ reg = <0x20600 0x20>;
++ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) |
++ IRQ_TYPE_EDGE_RISING)>;
++ clocks = <&periph_clk>;
++ };
++
++ watchdog at 20620 {
++ compatible = "arm,cortex-a9-twd-wdt";
++ reg = <0x20620 0x20>;
++ interrupts = <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) |
++ IRQ_TYPE_EDGE_RISING)>;
++ clocks = <&periph_clk>;
++ };
++
++ gic: interrupt-controller at 21000 {
++ compatible = "arm,cortex-a9-gic";
++ #interrupt-cells = <3>;
++ #address-cells = <0>;
++ interrupt-controller;
++ reg = <0x21000 0x1000>,
++ <0x20100 0x100>;
++ };
++
++ L2: cache-controller at 22000 {
++ compatible = "arm,pl310-cache";
++ reg = <0x22000 0x1000>;
++ cache-unified;
++ arm,shared-override;
++ prefetch-data = <1>;
++ prefetch-instr = <1>;
++ cache-level = <2>;
++ };
++ };
++
++ pmu {
++ compatible = "arm,cortex-a9-pmu";
++ interrupts =
++ <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
++ <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
++ };
++
++ clocks {
++ #address-cells = <1>;
++ #size-cells = <1>;
++ ranges;
++
++ osc: oscillator {
++ #clock-cells = <0>;
++ compatible = "fixed-clock";
++ clock-frequency = <25000000>;
++ };
++
++ iprocmed: iprocmed {
++ #clock-cells = <0>;
++ compatible = "fixed-factor-clock";
++ clocks = <&genpll BCM_NSP_GENPLL_IPROCFAST_CLK>;
++ clock-div = <2>;
++ clock-mult = <1>;
++ };
++
++ iprocslow: iprocslow {
++ #clock-cells = <0>;
++ compatible = "fixed-factor-clock";
++ clocks = <&genpll BCM_NSP_GENPLL_IPROCFAST_CLK>;
++ clock-div = <4>;
++ clock-mult = <1>;
++ };
++
++ periph_clk: periph_clk {
++ #clock-cells = <0>;
++ compatible = "fixed-factor-clock";
++ clocks = <&a9pll>;
++ clock-div = <2>;
++ clock-mult = <1>;
++ };
++ };
++
++ axi at 18000000 {
++ compatible = "brcm,bus-axi";
++ reg = <0x18000000 0x1000>;
++ ranges = <0x00000000 0x18000000 0x00100000>;
++ #address-cells = <1>;
++ #size-cells = <1>;
++
++ #interrupt-cells = <1>;
++ interrupt-map-mask = <0x000fffff 0xffff>;
++ interrupt-map =
++ /* ChipCommon */
++ <0x00000000 0 &gic GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>,
++
++ /* Switch Register Access Block */
++ <0x00007000 0 &gic GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00007000 1 &gic GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00007000 2 &gic GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00007000 3 &gic GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00007000 4 &gic GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00007000 5 &gic GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00007000 6 &gic GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00007000 7 &gic GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00007000 8 &gic GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00007000 9 &gic GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00007000 10 &gic GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00007000 11 &gic GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00007000 12 &gic GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>,
++
++ /* PCIe Controller 0 */
++ <0x00012000 0 &gic GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00012000 1 &gic GIC_SPI 127 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00012000 2 &gic GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00012000 3 &gic GIC_SPI 129 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00012000 4 &gic GIC_SPI 130 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00012000 5 &gic GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
++
++ /* PCIe Controller 1 */
++ <0x00013000 0 &gic GIC_SPI 132 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00013000 1 &gic GIC_SPI 133 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00013000 2 &gic GIC_SPI 134 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00013000 3 &gic GIC_SPI 135 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00013000 4 &gic GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00013000 5 &gic GIC_SPI 137 IRQ_TYPE_LEVEL_HIGH>,
++
++ /* PCIe Controller 2 */
++ <0x00014000 0 &gic GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00014000 1 &gic GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00014000 2 &gic GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00014000 3 &gic GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00014000 4 &gic GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00014000 5 &gic GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>,
++
++ /* USB 2.0 Controller */
++ <0x00021000 0 &gic GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>,
++
++ /* USB 3.0 Controller */
++ <0x00023000 0 &gic GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>,
++
++ /* Ethernet Controller 0 */
++ <0x00024000 0 &gic GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>,
++
++ /* Ethernet Controller 1 */
++ <0x00025000 0 &gic GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>,
++
++ /* Ethernet Controller 2 */
++ <0x00026000 0 &gic GIC_SPI 149 IRQ_TYPE_LEVEL_HIGH>,
++
++ /* Ethernet Controller 3 */
++ <0x00027000 0 &gic GIC_SPI 150 IRQ_TYPE_LEVEL_HIGH>,
++
++ /* NAND Controller */
++ <0x00028000 0 &gic GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00028000 1 &gic GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00028000 2 &gic GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00028000 3 &gic GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00028000 4 &gic GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00028000 5 &gic GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00028000 6 &gic GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>,
++ <0x00028000 7 &gic GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
++
++ chipcommon: chipcommon at 0 {
++ reg = <0x00000000 0x1000>;
++
++ gpio-controller;
++ #gpio-cells = <2>;
++ interrupt-controller;
++ #interrupt-cells = <2>;
++ };
++
++ pcie0: pcie at 12000 {
++ reg = <0x00012000 0x1000>;
++ };
++
++ pcie1: pcie at 13000 {
++ reg = <0x00013000 0x1000>;
++ };
++
++ pcie2: pcie at 14000 {
++ reg = <0x00014000 0x1000>;
++ };
++
++ usb2: usb2 at 21000 {
++ reg = <0x00021000 0x1000>;
++
++ #address-cells = <1>;
++ #size-cells = <1>;
++ ranges;
++
++ interrupt-parent = <&gic>;
++
++ ehci: usb at 21000 {
++ #usb-cells = <0>;
++
++ compatible = "generic-ehci";
++ reg = <0x00021000 0x1000>;
++ interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
++ phys = <&usb2_phy>;
++
++ #address-cells = <1>;
++ #size-cells = <0>;
++
++ ehci_port1: port at 1 {
++ reg = <1>;
++ #trigger-source-cells = <0>;
++ };
++
++ ehci_port2: port at 2 {
++ reg = <2>;
++ #trigger-source-cells = <0>;
++ };
++ };
++
++ ohci: usb at 22000 {
++ #usb-cells = <0>;
++
++ compatible = "generic-ohci";
++ reg = <0x00022000 0x1000>;
++ interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
++
++ #address-cells = <1>;
++ #size-cells = <0>;
++
++ ohci_port1: port at 1 {
++ reg = <1>;
++ #trigger-source-cells = <0>;
++ };
++
++ ohci_port2: port at 2 {
++ reg = <2>;
++ #trigger-source-cells = <0>;
++ };
++ };
++ };
++
++ usb3: usb3 at 23000 {
++ reg = <0x00023000 0x1000>;
++
++ #address-cells = <1>;
++ #size-cells = <1>;
++ ranges;
++
++ interrupt-parent = <&gic>;
++
++ xhci: usb at 23000 {
++ #usb-cells = <0>;
++
++ compatible = "generic-xhci";
++ reg = <0x00023000 0x1000>;
++ interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
++ phys = <&usb3_phy>;
++ phy-names = "usb";
++
++ #address-cells = <1>;
++ #size-cells = <0>;
++
++ xhci_port1: port at 1 {
++ reg = <1>;
++ #trigger-source-cells = <0>;
++ };
++ };
++ };
++
++ gmac0: ethernet at 24000 {
++ reg = <0x24000 0x800>;
++ };
++
++ gmac1: ethernet at 25000 {
++ reg = <0x25000 0x800>;
++ };
++
++ gmac2: ethernet at 26000 {
++ reg = <0x26000 0x800>;
++ };
++
++ gmac3: ethernet at 27000 {
++ reg = <0x27000 0x800>;
++ };
++ };
++
++ pwm: pwm at 18002000 {
++ compatible = "brcm,iproc-pwm";
++ reg = <0x18002000 0x28>;
++ clocks = <&osc>;
++ #pwm-cells = <3>;
++ status = "disabled";
++ };
++
++ mdio: mdio at 18003000 {
++ compatible = "brcm,iproc-mdio";
++ reg = <0x18003000 0x8>;
++ #size-cells = <0>;
++ #address-cells = <1>;
++ };
++
++ mdio-mux at 18003000 {
++ compatible = "mdio-mux-mmioreg", "mdio-mux";
++ mdio-parent-bus = <&mdio>;
++ #address-cells = <1>;
++ #size-cells = <0>;
++ reg = <0x18003000 0x4>;
++ mux-mask = <0x200>;
++
++ mdio at 0 {
++ reg = <0x0>;
++ #address-cells = <1>;
++ #size-cells = <0>;
++
++ usb3_phy: usb3-phy at 10 {
++ compatible = "brcm,ns-ax-usb3-phy";
++ reg = <0x10>;
++ usb3-dmp-syscon = <&usb3_dmp>;
++ #phy-cells = <0>;
++ status = "disabled";
++ };
++ };
++ };
++
++ usb3_dmp: syscon at 18105000 {
++ reg = <0x18105000 0x1000>;
++ };
++
++ uart2: serial at 18008000 {
++ compatible = "ns16550a";
++ reg = <0x18008000 0x20>;
++ clocks = <&iprocslow>;
++ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
++ reg-shift = <2>;
++ status = "disabled";
++ };
++
++ i2c0: i2c at 18009000 {
++ compatible = "brcm,iproc-i2c";
++ reg = <0x18009000 0x50>;
++ interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
++ #address-cells = <1>;
++ #size-cells = <0>;
++ clock-frequency = <100000>;
++ status = "disabled";
++ };
++
++ dmu-bus at 1800c000 {
++ compatible = "simple-bus";
++ ranges = <0 0x1800c000 0x1000>;
++ #address-cells = <1>;
++ #size-cells = <1>;
++
++ cru-bus at 100 {
++ compatible = "brcm,ns-cru", "simple-mfd";
++ reg = <0x100 0x1a4>;
++ ranges;
++ #address-cells = <1>;
++ #size-cells = <1>;
++
++ lcpll0: clock-controller at 100 {
++ #clock-cells = <1>;
++ compatible = "brcm,nsp-lcpll0";
++ reg = <0x100 0x14>;
++ clocks = <&osc>;
++ clock-output-names = "lcpll0", "pcie_phy",
++ "sdio", "ddr_phy";
++ };
++
++ genpll: clock-controller at 140 {
++ #clock-cells = <1>;
++ compatible = "brcm,nsp-genpll";
++ reg = <0x140 0x24>;
++ clocks = <&osc>;
++ clock-output-names = "genpll", "phy",
++ "ethernetclk",
++ "usbclk", "iprocfast",
++ "sata1", "sata2";
++ };
++
++ usb2_phy: phy at 164 {
++ compatible = "brcm,ns-usb2-phy";
++ reg = <0x164 0x4>;
++ brcm,syscon-clkset = <&cru_clkset>;
++ clocks = <&genpll BCM_NSP_GENPLL_USB_PHY_REF_CLK>;
++ clock-names = "phy-ref-clk";
++ #phy-cells = <0>;
++ };
++
++ cru_clkset: syscon at 180 {
++ compatible = "brcm,cru-clkset", "syscon";
++ reg = <0x180 0x4>;
++ };
++
++ pinctrl: pinctrl at 1c0 {
++ compatible = "brcm,bcm4708-pinmux";
++ reg = <0x1c0 0x24>;
++ reg-names = "cru_gpio_control";
++
++ spi-pins {
++ groups = "spi_grp";
++ function = "spi";
++ };
++
++ pinmux_i2c: i2c-pins {
++ groups = "i2c_grp";
++ function = "i2c";
++ };
++
++ pinmux_pwm: pwm-pins {
++ groups = "pwm0_grp", "pwm1_grp",
++ "pwm2_grp", "pwm3_grp";
++ function = "pwm";
++ };
++
++ pinmux_uart1: uart1-pins {
++ groups = "uart1_grp";
++ function = "uart1";
++ };
++ };
++
++ thermal: thermal at 2c0 {
++ compatible = "brcm,ns-thermal";
++ reg = <0x2c0 0x10>;
++ #thermal-sensor-cells = <0>;
++ };
++ };
++ };
++
++ srab: ethernet-switch at 18007000 {
++ compatible = "brcm,bcm53011-srab", "brcm,bcm5301x-srab";
++ reg = <0x18007000 0x1000>;
++
++ status = "disabled";
++
++ /* ports are defined in board DTS */
++ ports {
++ #address-cells = <1>;
++ #size-cells = <0>;
++ };
++ };
++
++ rng: rng at 18004000 {
++ compatible = "brcm,bcm5301x-rng";
++ reg = <0x18004000 0x14>;
++ };
++
++ nand_controller: nand-controller at 18028000 {
++ compatible = "brcm,nand-iproc", "brcm,brcmnand-v6.1", "brcm,brcmnand";
++ reg = <0x18028000 0x600>, <0x1811a408 0x600>, <0x18028f00 0x20>;
++ reg-names = "nand", "iproc-idm", "iproc-ext";
++ interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
++
++ #address-cells = <1>;
++ #size-cells = <0>;
++
++ brcm,nand-has-wp;
++ };
++
++ spi at 18029200 {
++ compatible = "brcm,spi-nsp-qspi", "brcm,spi-bcm-qspi";
++ reg = <0x18029200 0x184>,
++ <0x18029000 0x124>,
++ <0x1811b408 0x004>,
++ <0x180293a0 0x01c>;
++ reg-names = "mspi", "bspi", "intr_regs", "intr_status_reg";
++ interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>,
++ <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>,
++ <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>,
++ <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>,
++ <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>,
++ <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>,
++ <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
++ interrupt-names = "mspi_done",
++ "mspi_halted",
++ "spi_lr_fullness_reached",
++ "spi_lr_session_aborted",
++ "spi_lr_impatient",
++ "spi_lr_session_done",
++ "spi_lr_overread";
++ clocks = <&iprocmed>;
++ clock-names = "iprocmed";
++ num-cs = <2>;
++ #address-cells = <1>;
++ #size-cells = <0>;
++
++ spi_nor: flash at 0 {
++ compatible = "jedec,spi-nor";
++ reg = <0>;
++ spi-max-frequency = <20000000>;
++ status = "disabled";
++
++ partitions {
++ compatible = "brcm,bcm947xx-cfe-partitions";
++ };
++ };
++ };
++
++ thermal-zones {
++ cpu_thermal: cpu-thermal {
++ polling-delay-passive = <0>;
++ polling-delay = <1000>;
++ coefficients = <(-556) 418000>;
++ thermal-sensors = <&thermal>;
++
++ trips {
++ cpu-crit {
++ temperature = <125000>;
++ hysteresis = <0>;
++ type = "critical";
++ };
++ };
++
++ cooling-maps {
++ };
++ };
++ };
++};
+--- /dev/null
++++ b/include/dt-bindings/clock/bcm-nsp.h
+@@ -0,0 +1,51 @@
++/*
++ * BSD LICENSE
++ *
++ * Copyright(c) 2015 Broadcom Corporation. All rights reserved.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ *
++ * * Redistributions of source code must retain the above copyright
++ * notice, this list of conditions and the following disclaimer.
++ * * Redistributions in binary form must reproduce the above copyright
++ * notice, this list of conditions and the following disclaimer in
++ * the documentation and/or other materials provided with the
++ * distribution.
++ * * Neither the name of Broadcom Corporation nor the names of its
++ * contributors may be used to endorse or promote products derived
++ * from this software without specific prior written permission.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
++ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
++ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
++ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
++ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
++ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++ */
++
++#ifndef _CLOCK_BCM_NSP_H
++#define _CLOCK_BCM_NSP_H
++
++/* GENPLL clock channel ID */
++#define BCM_NSP_GENPLL 0
++#define BCM_NSP_GENPLL_PHY_CLK 1
++#define BCM_NSP_GENPLL_ENET_SW_CLK 2
++#define BCM_NSP_GENPLL_USB_PHY_REF_CLK 3
++#define BCM_NSP_GENPLL_IPROCFAST_CLK 4
++#define BCM_NSP_GENPLL_SATA1_CLK 5
++#define BCM_NSP_GENPLL_SATA2_CLK 6
++
++/* LCPLL0 clock channel ID */
++#define BCM_NSP_LCPLL0 0
++#define BCM_NSP_LCPLL0_PCIE_PHY_REF_CLK 1
++#define BCM_NSP_LCPLL0_SDIO_CLK 2
++#define BCM_NSP_LCPLL0_DDR_PHY_CLK 3
++
++#endif /* _CLOCK_BCM_NSP_H */
diff --git a/package/boot/uboot-bcm53xx/patches/0004-arm-Add-support-for-the-Broadcom-Northstar-SoCs.patch b/package/boot/uboot-bcm53xx/patches/0004-arm-Add-support-for-the-Broadcom-Northstar-SoCs.patch
new file mode 100644
index 0000000000..92eaa46e51
--- /dev/null
+++ b/package/boot/uboot-bcm53xx/patches/0004-arm-Add-support-for-the-Broadcom-Northstar-SoCs.patch
@@ -0,0 +1,66 @@
+From b81ea0a64b01ae42e8b41d2a8b9a3fabffe97489 Mon Sep 17 00:00:00 2001
+From: Linus Walleij <linus.walleij at linaro.org>
+Date: Mon, 24 Apr 2023 09:38:29 +0200
+Subject: [PATCH 4/5] arm: Add support for the Broadcom Northstar SoCs
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The original Northstar is an ARM SoC series that comprise
+BCM4709x and BCM5301x and uses a dual-core Cortex A9, the
+global timer and a few other things.
+
+This series should not be confused with North Star Plus
+(NSP) which is partly supported by U-Boot already.
+
+The SoC is well supported by the Linux kernel and OpenWrt
+as it is used in many routers.
+
+Since we currently don't need any chip-specific quirks
+and can get the system up from just the device tree, a
+mach-* directory doesn't even need to be added, just
+some small Kconfig fragments.
+
+Cc: Rafał Miłecki <rafal at milecki.pl>
+Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
+---
+ arch/arm/Kconfig | 21 ++++++++++++++++++++-
+ 1 file changed, 20 insertions(+), 1 deletion(-)
+
+--- a/arch/arm/Kconfig
++++ b/arch/arm/Kconfig
+@@ -357,7 +357,7 @@ config SYS_ARM_ARCH
+
+ choice
+ prompt "Select the ARM data write cache policy"
+- default SYS_ARM_CACHE_WRITETHROUGH if TARGET_BCMCYGNUS || RZA1
++ default SYS_ARM_CACHE_WRITETHROUGH if TARGET_BCMCYGNUS || TARGET_BCMNS || RZA1
+ default SYS_ARM_CACHE_WRITEBACK
+
+ config SYS_ARM_CACHE_WRITEBACK
+@@ -670,6 +670,25 @@ config TARGET_BCMCYGNUS
+ imply HASH_VERIFY
+ imply NETDEVICES
+
++config TARGET_BCMNS
++ bool "Support Broadcom Northstar"
++ select CPU_V7A
++ select DM
++ select DM_GPIO
++ select DM_SERIAL
++ select OF_CONTROL
++ select TIMER
++ select SYS_NS16550
++ select ARM_GLOBAL_TIMER
++ imply SYS_THUMB_BUILD
++ imply MTD_RAW_NAND
++ imply NAND_BRCMNAND
++ imply NAND_BRCMNAND_IPROC
++ help
++ Support for Broadcom Northstar SoCs. NS is a dual-core 32-bit
++ ARMv7 Cortex-A9 SoC family including BCM4708, BCM47094,
++ BCM5301x etc.
++
+ config TARGET_BCMNS2
+ bool "Support Broadcom Northstar2"
+ select ARM64
diff --git a/package/boot/uboot-bcm53xx/patches/0005-board-Add-new-Broadcom-Northstar-board.patch b/package/boot/uboot-bcm53xx/patches/0005-board-Add-new-Broadcom-Northstar-board.patch
new file mode 100644
index 0000000000..158718133d
--- /dev/null
+++ b/package/boot/uboot-bcm53xx/patches/0005-board-Add-new-Broadcom-Northstar-board.patch
@@ -0,0 +1,372 @@
+From 652a6fa45b6c9d52dd9685fc12ad662e54a9092e Mon Sep 17 00:00:00 2001
+From: Linus Walleij <linus.walleij at linaro.org>
+Date: Mon, 24 Apr 2023 09:38:30 +0200
+Subject: [PATCH 5/5] board: Add new Broadcom Northstar board
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This adds a simple Northstar "BRCMNS" board to be used with
+the BCM4708x and BCM5301x chips.
+
+The main intention is to use this with the D-Link DIR-890L
+and DIR-885L routers for loading the kernel into RAM from
+NAND memory using the BCH-1 ECC and using the separately
+submitted SEAMA load command, so we are currently not adding
+support for things such as networking.
+
+The DTS file is a multiplatform NorthStar board, designed to
+be usable with several NorthStar designs by avoiding any
+particulars not related to the operation of U-Boot.
+
+If other board need other ECC for example, they need to
+create a separate DTS file and augment the code, but I don't
+know if any other users will turn up.
+
+Cc: Rafał Miłecki <rafal at milecki.pl>
+Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
+---
+ arch/arm/Kconfig | 1 +
+ arch/arm/dts/Makefile | 2 ++
+ arch/arm/dts/ns-board.dts | 57 ++++++++++++++++++++++++++++++
+ board/broadcom/bcmns/Kconfig | 12 +++++++
+ board/broadcom/bcmns/MAINTAINERS | 6 ++++
+ board/broadcom/bcmns/Makefile | 2 ++
+ board/broadcom/bcmns/ns.c | 60 ++++++++++++++++++++++++++++++++
+ configs/bcmns_defconfig | 41 ++++++++++++++++++++++
+ doc/board/broadcom/index.rst | 1 +
+ doc/board/broadcom/northstar.rst | 44 +++++++++++++++++++++++
+ include/configs/bcmns.h | 49 ++++++++++++++++++++++++++
+ 11 files changed, 275 insertions(+)
+ create mode 100644 arch/arm/dts/ns-board.dts
+ create mode 100644 board/broadcom/bcmns/Kconfig
+ create mode 100644 board/broadcom/bcmns/MAINTAINERS
+ create mode 100644 board/broadcom/bcmns/Makefile
+ create mode 100644 board/broadcom/bcmns/ns.c
+ create mode 100644 configs/bcmns_defconfig
+ create mode 100644 doc/board/broadcom/northstar.rst
+ create mode 100644 include/configs/bcmns.h
+
+--- a/arch/arm/Kconfig
++++ b/arch/arm/Kconfig
+@@ -2286,6 +2286,7 @@ 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"
+--- a/arch/arm/dts/Makefile
++++ b/arch/arm/dts/Makefile
+@@ -1185,6 +1185,8 @@ 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
+--- /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 at 18028000 {
++ nandcs: nand at 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";
++};
+--- /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
+--- /dev/null
++++ b/board/broadcom/bcmns/MAINTAINERS
+@@ -0,0 +1,6 @@
++BCMNS BOARD
++M: Linus Walleij <linus.walleij at linaro.org>
++S: Maintained
++F: board/broadcom/bcmnsp/
++F: configs/bcmnsp_defconfig
++F: include/configs/bcmnsp.h
+--- /dev/null
++++ b/board/broadcom/bcmns/Makefile
+@@ -0,0 +1,2 @@
++# SPDX-License-Identifier: GPL-2.0-or-later
++obj-y := ns.o
+--- /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 at 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;
++}
++
+--- /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
+--- a/doc/board/broadcom/index.rst
++++ b/doc/board/broadcom/index.rst
+@@ -9,3 +9,4 @@ Broadcom
+
+ bcm7xxx
+ raspberrypi
++ northstar
+--- /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 at 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}
++ $ ${CROSS_COMPILE}strip u-boot
+--- /dev/null
++++ b/include/configs/bcmns.h
+@@ -0,0 +1,49 @@
++/* SPDX-License-Identifier: GPL-2.0+ */
++
++#ifndef __BCM_NS_H
++#define __BCM_NS_H
++
++#include <linux/sizes.h>
++
++/* Physical Memory Map */
++#define V2M_BASE 0x00000000
++#define PHYS_SDRAM_1 V2M_BASE
++
++#define CFG_SYS_SDRAM_BASE PHYS_SDRAM_1
++
++/* Called "periph_clk" in Linux, used by the global timer */
++#define CFG_SYS_HZ_CLOCK 500000000
++
++/* Called "iprocslow" in Linux */
++#define CFG_SYS_NS16550_CLK 125000000
++
++/* console configuration */
++#define CONSOLE_ARGS "console_args=console=ttyS0,115200n8\0"
++#define MAX_CPUS "max_cpus=maxcpus=2\0"
++#define EXTRA_ARGS "extra_args=earlycon=uart8250,mmio32,0x18000300\0"
++
++#define BASE_ARGS "${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 */
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