mirror
/
openwrt
mirror of https://git.openwrt.org/openwrt/openwrt.git
1
0
Fork 0
Code Releases Activity

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@linaro.org>
This commit is contained in:
Linus Walleij 2023-06-19 08:36:15 +02:00 committed by Rafał Miłecki
parent ac68fbf526
commit f2a8763587
7 changed files with 1414 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
.github/labeler.yml vendored
View File

@ -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/**"

37
package/boot/uboot-bcm53xx/Makefile Normal file
View File

@ -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))

199
package/boot/uboot-bcm53xx/patches/0001-nand-brcmnand-add-iproc-support.patch Normal file
View File

@ -0,0 +1,199 @@
From 854dc4b790ce1291326d52b8405ebe771bff2edd Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@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@softathome.com>
Cc: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: William Zhang <william.zhang@broadcom.com>
Link: https://lore.kernel.org/all/20230308214231.378013-1-linus.walleij@linaro.org/
Signed-off-by: Dario Binacchi <dario.binacchi@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);
+}

80
package/boot/uboot-bcm53xx/patches/0002-mtd-rawnand-nand_base-Handle-algorithm-selection.patch Normal file
View File

@ -0,0 +1,80 @@
From d75483f8892f3a0dfb8f5aa4147e72c02c8b034c Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@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@amarulasolutions.com>
Acked-by: William Zhang <william.zhang@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Tom Rini <trini@konsulko.com> [am335x_evm]
Link: https://lore.kernel.org/all/20230407134008.1939717-3-linus.walleij@linaro.org/
Signed-off-by: Dario Binacchi <dario.binacchi@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;

659
package/boot/uboot-bcm53xx/patches/0003-arm-dts-Import-device-tree-for-Broadcom-Northstar.patch Normal file
View File

@ -0,0 +1,659 @@
From 3d6098a662b7ff5b80c4b75c54fcd1b2baf9f150 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@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@milecki.pl>
Signed-off-by: Linus Walleij <linus.walleij@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@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@18000000 {
+ compatible = "simple-bus";
+ ranges = <0x00000000 0x18000000 0x00001000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ uart0: serial@300 {
+ compatible = "ns16550";
+ reg = <0x0300 0x100>;
+ interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&iprocslow>;
+ status = "disabled";
+ };
+
+ uart1: serial@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@19000000 {
+ compatible = "simple-bus";
+ ranges = <0x00000000 0x19000000 0x00023000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ a9pll: arm_clk@0 {
+ #clock-cells = <0>;
+ compatible = "brcm,nsp-armpll";
+ clocks = <&osc>;
+ reg = <0x00000 0x1000>;
+ };
+
+ scu@20000 {
+ compatible = "arm,cortex-a9-scu";
+ reg = <0x20000 0x100>;
+ };
+
+ timer@20200 {
+ compatible = "arm,cortex-a9-global-timer";
+ reg = <0x20200 0x100>;
+ interrupts = <GIC_PPI 11 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&periph_clk>;
+ };
+
+ timer@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@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@21000 {
+ compatible = "arm,cortex-a9-gic";
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+ interrupt-controller;
+ reg = <0x21000 0x1000>,
+ <0x20100 0x100>;
+ };
+
+ L2: cache-controller@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@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@0 {
+ reg = <0x00000000 0x1000>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pcie0: pcie@12000 {
+ reg = <0x00012000 0x1000>;
+ };
+
+ pcie1: pcie@13000 {
+ reg = <0x00013000 0x1000>;
+ };
+
+ pcie2: pcie@14000 {
+ reg = <0x00014000 0x1000>;
+ };
+
+ usb2: usb2@21000 {
+ reg = <0x00021000 0x1000>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ interrupt-parent = <&gic>;
+
+ ehci: usb@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@1 {
+ reg = <1>;
+ #trigger-source-cells = <0>;
+ };
+
+ ehci_port2: port@2 {
+ reg = <2>;
+ #trigger-source-cells = <0>;
+ };
+ };
+
+ ohci: usb@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@1 {
+ reg = <1>;
+ #trigger-source-cells = <0>;
+ };
+
+ ohci_port2: port@2 {
+ reg = <2>;
+ #trigger-source-cells = <0>;
+ };
+ };
+ };
+
+ usb3: usb3@23000 {
+ reg = <0x00023000 0x1000>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ interrupt-parent = <&gic>;
+
+ xhci: usb@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@1 {
+ reg = <1>;
+ #trigger-source-cells = <0>;
+ };
+ };
+ };
+
+ gmac0: ethernet@24000 {
+ reg = <0x24000 0x800>;
+ };
+
+ gmac1: ethernet@25000 {
+ reg = <0x25000 0x800>;
+ };
+
+ gmac2: ethernet@26000 {
+ reg = <0x26000 0x800>;
+ };
+
+ gmac3: ethernet@27000 {
+ reg = <0x27000 0x800>;
+ };
+ };
+
+ pwm: pwm@18002000 {
+ compatible = "brcm,iproc-pwm";
+ reg = <0x18002000 0x28>;
+ clocks = <&osc>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ mdio: mdio@18003000 {
+ compatible = "brcm,iproc-mdio";
+ reg = <0x18003000 0x8>;
+ #size-cells = <0>;
+ #address-cells = <1>;
+ };
+
+ mdio-mux@18003000 {
+ compatible = "mdio-mux-mmioreg", "mdio-mux";
+ mdio-parent-bus = <&mdio>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x18003000 0x4>;
+ mux-mask = <0x200>;
+
+ mdio@0 {
+ reg = <0x0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ usb3_phy: usb3-phy@10 {
+ compatible = "brcm,ns-ax-usb3-phy";
+ reg = <0x10>;
+ usb3-dmp-syscon = <&usb3_dmp>;
+ #phy-cells = <0>;
+ status = "disabled";
+ };
+ };
+ };
+
+ usb3_dmp: syscon@18105000 {
+ reg = <0x18105000 0x1000>;
+ };
+
+ uart2: serial@18008000 {
+ compatible = "ns16550a";
+ reg = <0x18008000 0x20>;
+ clocks = <&iprocslow>;
+ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ i2c0: i2c@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@1800c000 {
+ compatible = "simple-bus";
+ ranges = <0 0x1800c000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ cru-bus@100 {
+ compatible = "brcm,ns-cru", "simple-mfd";
+ reg = <0x100 0x1a4>;
+ ranges;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ lcpll0: clock-controller@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@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@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@180 {
+ compatible = "brcm,cru-clkset", "syscon";
+ reg = <0x180 0x4>;
+ };
+
+ pinctrl: pinctrl@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@2c0 {
+ compatible = "brcm,ns-thermal";
+ reg = <0x2c0 0x10>;
+ #thermal-sensor-cells = <0>;
+ };
+ };
+ };
+
+ srab: ethernet-switch@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@18004000 {
+ compatible = "brcm,bcm5301x-rng";
+ reg = <0x18004000 0x14>;
+ };
+
+ nand_controller: nand-controller@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@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@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 */

66
package/boot/uboot-bcm53xx/patches/0004-arm-Add-support-for-the-Broadcom-Northstar-SoCs.patch Normal file
View File

@ -0,0 +1,66 @@
From b81ea0a64b01ae42e8b41d2a8b9a3fabffe97489 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@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@milecki.pl>
Signed-off-by: Linus Walleij <linus.walleij@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

372
package/boot/uboot-bcm53xx/patches/0005-board-Add-new-Broadcom-Northstar-board.patch Normal file
View File

@ -0,0 +1,372 @@
From 652a6fa45b6c9d52dd9685fc12ad662e54a9092e Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@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@milecki.pl>
Signed-off-by: Linus Walleij <linus.walleij@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@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";
+};
--- /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@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@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@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 */