arm: bcmbca: add bcm6858 SoC support under CONFIG_ARCH_BCMBCA

BCM6858 is a Broadcom B53 based PON Gateway SoC. It is part of the BCA
(Broadband Carrier Access origin) chipset family. Like other broadband
SoC, this patch adds it under CONFIG_BCM6858 chip config and
CONFIG_ARCH_BCMBCA platform config.

This initial support includes a bare-bone implementation and the
original dts is updated with the one from linux next git repository.

The u-boot image can be loaded from flash or network to the entry point
address in the memory and boot from there to the console.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
Reviewed-by: Philippe Reynes <philippe.reynes@softathome.com>

diff --git a/MAINTAINERS b/MAINTAINERS
index 8064e9b..e86ffc0 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -230,6 +230,7 @@ N:  bcm[9]?6756
 N:     bcm[9]?6813
 N:     bcm[9]?6846
 N:     bcm[9]?6856
+N:     bcm[9]?6858
 N:     bcm[9]?6878
 
 ARM BROADCOM BCMSTB

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 8d1e969..37659cb 100644 (file)
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -1199,6 +1199,8 @@ dtb-$(CONFIG_BCM6846) += \
 dtb-$(CONFIG_BCM6856) += \
        bcm96856.dtb \
        bcm968360bg.dtb
+dtb-$(CONFIG_BCM6858) += \
+       bcm96858.dtb
 dtb-$(CONFIG_BCM6878) += \
        bcm96878.dtb
 

diff --git a/arch/arm/dts/bcm6858.dtsi b/arch/arm/dts/bcm6858.dtsi
index 0222562..19c4dd6 100644 (file)
--- a/arch/arm/dts/bcm6858.dtsi
+++ b/arch/arm/dts/bcm6858.dtsi
@@ -1,122 +1,161 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2018 Philippe Reynes <philippe.reynes@softathome.com>
+ * Copyright 2022 Broadcom Ltd.
  */
 
-#include "skeleton64.dtsi"
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
 
 / {
-       compatible = "brcm,bcm6858";
+       compatible = "brcm,bcm6858", "brcm,bcmbca";
        #address-cells = <2>;
        #size-cells = <2>;
 
-       aliases {
-               spi0 = &hsspi;
-       };
+       interrupt-parent = <&gic>;
 
        cpus {
                #address-cells = <2>;
                #size-cells = <0>;
-               u-boot,dm-pre-reloc;
 
-               cpu0: cpu@0 {
-                       compatible = "arm,cortex-a53", "arm,armv8";
+               B53_0: cpu@0 {
+                       compatible = "brcm,brahma-b53";
                        device_type = "cpu";
                        reg = <0x0 0x0>;
-                       next-level-cache = <&l2>;
-                       u-boot,dm-pre-reloc;
+                       next-level-cache = <&L2_0>;
+                       enable-method = "psci";
                };
 
-               cpu1: cpu@1 {
-                       compatible = "arm,cortex-a53", "arm,armv8";
+               B53_1: cpu@1 {
+                       compatible = "brcm,brahma-b53";
                        device_type = "cpu";
                        reg = <0x0 0x1>;
-                       next-level-cache = <&l2>;
-                       u-boot,dm-pre-reloc;
+                       next-level-cache = <&L2_0>;
+                       enable-method = "psci";
                };
 
-               cpu2: cpu@2 {
-                       compatible = "arm,cortex-a53", "arm,armv8";
+               B53_2: cpu@2 {
+                       compatible = "brcm,brahma-b53";
                        device_type = "cpu";
                        reg = <0x0 0x2>;
-                       next-level-cache = <&l2>;
-                       u-boot,dm-pre-reloc;
+                       next-level-cache = <&L2_0>;
+                       enable-method = "psci";
                };
 
-               cpu3: cpu@3 {
-                       compatible = "arm,cortex-a53", "arm,armv8";
+               B53_3: cpu@3 {
+                       compatible = "brcm,brahma-b53";
                        device_type = "cpu";
                        reg = <0x0 0x3>;
-                       next-level-cache = <&l2>;
-                       u-boot,dm-pre-reloc;
+                       next-level-cache = <&L2_0>;
+                       enable-method = "psci";
                };
 
-               l2: l2-cache0 {
+               L2_0: l2-cache0 {
                        compatible = "cache";
-                       u-boot,dm-pre-reloc;
                };
        };
 
+       timer {
+               compatible = "arm,armv8-timer";
+               interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+                       <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+                       <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+                       <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+       };
+
+       pmu: pmu {
+               compatible = "arm,armv8-pmuv3";
+               interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+                       <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+                       <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
+                       <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+               interrupt-affinity = <&B53_0>, <&B53_1>,
+                       <&B53_2>, <&B53_3>;
+       };
+
        clocks {
-               compatible = "simple-bus";
-               #address-cells = <2>;
-               #size-cells = <2>;
-               ranges;
                u-boot,dm-pre-reloc;
 
-               periph_osc: periph-osc {
+               periph_clk: periph_clk {
                        compatible = "fixed-clock";
                        #clock-cells = <0>;
                        clock-frequency = <200000000>;
-                       u-boot,dm-pre-reloc;
                };
 
                hsspi_pll: hsspi-pll {
                        compatible = "fixed-factor-clock";
                        #clock-cells = <0>;
-                       clocks = <&periph_osc>;
+                       clocks = <&periph_clk>;
                        clock-mult = <2>;
                        clock-div = <1>;
                };
 
-               refclk50mhz: refclk50mhz {
-                       compatible = "fixed-clock";
+               wdt_clk: wdt-clk {
+                       compatible = "fixed-factor-clock";
                        #clock-cells = <0>;
-                       clock-frequency = <50000000>;
+                       clocks = <&periph_clk>;
+                       clock-div = <4>;
+                       clock-mult = <1>;
                };
        };
 
-       ubus {
+       psci {
+               compatible = "arm,psci-0.2";
+               method = "smc";
+       };
+
+       axi@81000000 {
                compatible = "simple-bus";
-               #address-cells = <2>;
-               #size-cells = <2>;
+               #address-cells = <1>;
+               #size-cells = <1>;
+               ranges = <0x0 0x0 0x81000000 0x8000>;
+
+               gic: interrupt-controller@1000 {
+                       compatible = "arm,gic-400";
+                       #interrupt-cells = <3>;
+                       interrupt-controller;
+                       reg = <0x1000 0x1000>, /* GICD */
+                               <0x2000 0x2000>, /* GICC */
+                               <0x4000 0x2000>, /* GICH */
+                               <0x6000 0x2000>; /* GICV */
+                       interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) |
+                                       IRQ_TYPE_LEVEL_HIGH)>;
+               };
+       };
+
+       bus@ff800000 {
+               compatible = "simple-bus";
+               #address-cells = <1>;
+               #size-cells = <1>;
+               ranges = <0x0 0x0 0xff800000 0x800000>;
                u-boot,dm-pre-reloc;
 
-               uart0: serial@ff800640 {
+               uart0: serial@640 {
                        compatible = "brcm,bcm6345-uart";
-                       reg = <0x0 0xff800640 0x0 0x18>;
-                       clocks = <&periph_osc>;
-
+                       reg = <0x640 0x18>;
+                       interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&periph_clk>;
+                       clock-names = "refclk";
                        status = "disabled";
                };
 
-               leds: led-controller@ff800800 {
+               leds: led-controller@800 {
                        compatible = "brcm,bcm6858-leds";
-                       reg = <0x0 0xff800800 0x0 0xe4>;
+                       reg = <0x800 0xe4>;
 
                        status = "disabled";
                };
 
-               wdt1: watchdog@ff802780 {
+               wdt1: watchdog@2780 {
                        compatible = "brcm,bcm6345-wdt";
-                       reg = <0x0 0xff802780 0x0 0x14>;
-                       clocks = <&refclk50mhz>;
+                       reg = <0x2780 0x14>;
+                       clocks = <&wdt_clk>;
                };
 
-               wdt2: watchdog@ff8027c0 {
+               wdt2: watchdog@27c0 {
                        compatible = "brcm,bcm6345-wdt";
-                       reg = <0x0 0xff8027c0 0x0 0x14>;
-                       clocks = <&refclk50mhz>;
+                       reg = <0x27c0 0x14>;
+                       clocks = <&wdt_clk>;
                };
 
                wdt-reboot {
@@ -124,91 +163,91 @@
                        wdt = <&wdt1>;
                };
 
-               gpio0: gpio-controller@0xff800500 {
+               gpio0: gpio-controller@500 {
                        compatible = "brcm,bcm6345-gpio";
-                       reg = <0x0 0xff800500 0x0 0x4>,
-                             <0x0 0xff800520 0x0 0x4>;
+                       reg = <0x500 0x4>,
+                             <0x520 0x4>;
                        gpio-controller;
                        #gpio-cells = <2>;
 
                        status = "disabled";
                };
 
-               gpio1: gpio-controller@0xff800504 {
+               gpio1: gpio-controller@504 {
                        compatible = "brcm,bcm6345-gpio";
-                       reg = <0x0 0xff800504 0x0 0x4>,
-                             <0x0 0xff800524 0x0 0x4>;
+                       reg = <0x504 0x4>,
+                             <0x524 0x4>;
                        gpio-controller;
                        #gpio-cells = <2>;
 
                        status = "disabled";
                };
 
-               gpio2: gpio-controller@0xff800508 {
+               gpio2: gpio-controller@508 {
                        compatible = "brcm,bcm6345-gpio";
-                       reg = <0x0 0xff800508 0x0 0x4>,
-                             <0x0 0xff800528 0x0 0x4>;
+                       reg = <0x508 0x4>,
+                             <0x528 0x4>;
                        gpio-controller;
                        #gpio-cells = <2>;
 
                        status = "disabled";
                };
 
-               gpio3: gpio-controller@0xff80050c {
+               gpio3: gpio-controller@50c {
                        compatible = "brcm,bcm6345-gpio";
-                       reg = <0x0 0xff80050c 0x0 0x4>,
-                             <0x0 0xff80052c 0x0 0x4>;
+                       reg = <0x50c 0x4>,
+                             <0x52c 0x4>;
                        gpio-controller;
                        #gpio-cells = <2>;
 
                        status = "disabled";
                };
 
-               gpio4: gpio-controller@0xff800510 {
+               gpio4: gpio-controller@510 {
                        compatible = "brcm,bcm6345-gpio";
-                       reg = <0x0 0xff800510 0x0 0x4>,
-                             <0x0 0xff800530 0x0 0x4>;
+                       reg = <0x510 0x4>,
+                             <0x530 0x4>;
                        gpio-controller;
                        #gpio-cells = <2>;
 
                        status = "disabled";
                };
 
-               gpio5: gpio-controller@0xff800514 {
+               gpio5: gpio-controller@514 {
                        compatible = "brcm,bcm6345-gpio";
-                       reg = <0x0 0xff800514 0x0 0x4>,
-                             <0x0 0xff800534 0x0 0x4>;
+                       reg = <0x514 0x4>,
+                             <0x534 0x4>;
                        gpio-controller;
                        #gpio-cells = <2>;
 
                        status = "disabled";
                };
 
-               gpio6: gpio-controller@0xff800518 {
+               gpio6: gpio-controller@518 {
                        compatible = "brcm,bcm6345-gpio";
-                       reg = <0x0 0xff800518 0x0 0x4>,
-                             <0x0 0xff800538 0x0 0x4>;
+                       reg = <0x518 0x4>,
+                             <0x538 0x4>;
                        gpio-controller;
                        #gpio-cells = <2>;
 
                        status = "disabled";
                };
 
-               gpio7: gpio-controller@0xff80051c {
+               gpio7: gpio-controller@51c {
                        compatible = "brcm,bcm6345-gpio";
-                       reg = <0x0 0xff80051c 0x0 0x4>,
-                             <0x0 0xff80053c 0x0 0x4>;
+                       reg = <0x51c 0x4>,
+                             <0x53c 0x4>;
                        gpio-controller;
                        #gpio-cells = <2>;
 
                        status = "disabled";
                };
 
-               hsspi: spi-controller@ff801000 {
+               hsspi: spi-controller@1000 {
                        compatible = "brcm,bcm6328-hsspi";
                        #address-cells = <1>;
                        #size-cells = <0>;
-                       reg = <0x0 0xff801000 0x0 0x600>;
+                       reg = <0x1000 0x600>;
                        clocks = <&hsspi_pll>, <&hsspi_pll>;
                        clock-names = "hsspi", "pll";
                        spi-max-frequency = <100000000>;
@@ -217,14 +256,14 @@
                        status = "disabled";
                };
 
-               nand: nand-controller@ff801800 {
+               nand: nand-controller@1800 {
                        compatible = "brcm,nand-bcm6858",
                                     "brcm,brcmnand-v5.0",
                                     "brcm,brcmnand";
                        reg-names = "nand", "nand-int-base", "nand-cache";
-                       reg = <0x0 0xff801800 0x0 0x180>,
-                             <0x0 0xff802000 0x0 0x10>,
-                             <0x0 0xff801c00 0x0 0x200>;
+                       reg = <0x1800 0x180>,
+                             <0x2000 0x10>,
+                             <0x1c00 0x200>;
                        parameter-page-big-endian = <0>;
 
                        status = "disabled";

diff --git a/arch/arm/dts/bcm96858.dts b/arch/arm/dts/bcm96858.dts
new file mode 100644 (file)
index 0000000..0cbf582
--- /dev/null
+++ b/arch/arm/dts/bcm96858.dts
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2022 Broadcom Ltd.
+ */
+
+/dts-v1/;
+
+#include "bcm6858.dtsi"
+
+/ {
+       model = "Broadcom BCM96858 Reference Board";
+       compatible = "brcm,bcm96858", "brcm,bcm6858", "brcm,bcmbca";
+
+       aliases {
+               serial0 = &uart0;
+       };
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+       };
+
+       memory@0 {
+               device_type = "memory";
+               reg = <0x0 0x0 0x0 0x08000000>;
+       };
+};
+
+&uart0 {
+       status = "okay";
+};

diff --git a/arch/arm/mach-bcmbca/Kconfig b/arch/arm/mach-bcmbca/Kconfig
index f35f02c..5b97773 100644 (file)
--- a/arch/arm/mach-bcmbca/Kconfig
+++ b/arch/arm/mach-bcmbca/Kconfig
@@ -93,6 +93,16 @@ config BCM6856
          Broadcom BCM6856 is a dual core Brahma-B53 ARMv8 based xPON Gateway
          SoC. This SoC family includes BCM6856, BCM6836 and BCM4910.
 
+config BCM6858
+       bool "Support for Broadcom 6858 Family"
+       select ARM64
+       select SYS_ARCH_TIMER
+       select DM_SERIAL
+       select BCM6345_SERIAL
+       help
+         Broadcom BCM6858 is a quad core Brahma-B53 ARMv8 based xPON Gateway
+         SoC. This SoC family includes BCM6858, BCM49508, BCM5504X and BCM6545.
+
 config BCM6878
        bool "Support for Broadcom 6878 Family"
        select SYS_ARCH_TIMER
@@ -112,6 +122,7 @@ source "arch/arm/mach-bcmbca/bcm6756/Kconfig"
 source "arch/arm/mach-bcmbca/bcm6813/Kconfig"
 source "arch/arm/mach-bcmbca/bcm6846/Kconfig"
 source "arch/arm/mach-bcmbca/bcm6856/Kconfig"
+source "arch/arm/mach-bcmbca/bcm6858/Kconfig"
 source "arch/arm/mach-bcmbca/bcm6878/Kconfig"
 
 endif

diff --git a/arch/arm/mach-bcmbca/Makefile b/arch/arm/mach-bcmbca/Makefile
index 20f8275..c068094 100644 (file)
--- a/arch/arm/mach-bcmbca/Makefile
+++ b/arch/arm/mach-bcmbca/Makefile
@@ -15,4 +15,5 @@ obj-$(CONFIG_BCM6756) += bcm6756/
 obj-$(CONFIG_BCM6813) += bcm6813/
 obj-$(CONFIG_BCM6846) += bcm6846/
 obj-$(CONFIG_BCM6856) += bcm6856/
+obj-$(CONFIG_BCM6858) += bcm6858/
 obj-$(CONFIG_BCM6878) += bcm6878/

diff --git a/arch/arm/mach-bcmbca/bcm6858/Kconfig b/arch/arm/mach-bcmbca/bcm6858/Kconfig
new file mode 100644 (file)
index 0000000..a6504ba
--- /dev/null
+++ b/arch/arm/mach-bcmbca/bcm6858/Kconfig
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2022 Broadcom Ltd
+#
+
+if BCM6858
+
+config TARGET_BCM96858
+       bool "Broadcom 6858 Reference Board"
+       depends on ARCH_BCMBCA
+
+config SYS_SOC
+       default "bcm6858"
+
+source "board/broadcom/bcmbca/Kconfig"
+
+endif

diff --git a/arch/arm/mach-bcmbca/bcm6858/Makefile b/arch/arm/mach-bcmbca/bcm6858/Makefile
new file mode 100644 (file)
index 0000000..6262497
--- /dev/null
+++ b/arch/arm/mach-bcmbca/bcm6858/Makefile
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2022 Broadcom Ltd
+#
+obj-y += mmu_table.o

diff --git a/arch/arm/mach-bcmbca/bcm6858/mmu_table.c b/arch/arm/mach-bcmbca/bcm6858/mmu_table.c
new file mode 100644 (file)
index 0000000..8982910
--- /dev/null
+++ b/arch/arm/mach-bcmbca/bcm6858/mmu_table.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *  Copyright 2022 Broadcom Ltd.
+ */
+#include <common.h>
+#include <asm/armv8/mmu.h>
+#include <linux/sizes.h>
+
+static struct mm_region bcm96858_mem_map[] = {
+               {
+                               .virt = 0x00000000UL,
+                               .phys = 0x00000000UL,
+                               .size = 1UL * SZ_1G,
+                               .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+                                               PTE_BLOCK_INNER_SHARE
+               },
+               {
+                               /* SoC peripheral */
+                               .virt = 0xff800000UL,
+                               .phys = 0xff800000UL,
+                               .size = 0x100000,
+                               .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+                                               PTE_BLOCK_NON_SHARE |
+                                               PTE_BLOCK_PXN | PTE_BLOCK_UXN
+               },
+               {
+                               /* List terminator */
+                               0,
+               }
+};
+
+struct mm_region *mem_map = bcm96858_mem_map;

diff --git a/board/broadcom/bcmbca/Kconfig b/board/broadcom/bcmbca/Kconfig
index efe5049..7da9e95 100644 (file)
--- a/board/broadcom/bcmbca/Kconfig
+++ b/board/broadcom/bcmbca/Kconfig
@@ -93,6 +93,13 @@ config SYS_CONFIG_NAME
 
 endif
 
+if TARGET_BCM96858
+
+config SYS_CONFIG_NAME
+       default "bcm96858"
+
+endif
+
 if TARGET_BCM96878
 
 config SYS_CONFIG_NAME

diff --git a/configs/bcm96858_defconfig b/configs/bcm96858_defconfig
new file mode 100644 (file)
index 0000000..5f7be11
--- /dev/null
+++ b/configs/bcm96858_defconfig
@@ -0,0 +1,23 @@
+CONFIG_ARM=y
+CONFIG_COUNTER_FREQUENCY=50000000
+CONFIG_ARCH_BCMBCA=y
+CONFIG_SYS_TEXT_BASE=0x01000000
+CONFIG_SYS_MALLOC_LEN=0x2000000
+CONFIG_SYS_MALLOC_F_LEN=0x8000
+CONFIG_BCM6858=y
+CONFIG_TARGET_BCM96858=y
+CONFIG_NR_DRAM_BANKS=2
+CONFIG_DEFAULT_DEVICE_TREE="bcm96858"
+CONFIG_IDENT_STRING=" Broadcom BCM6858"
+CONFIG_SYS_LOAD_ADDR=0x01000000
+CONFIG_ENV_VARS_UBOOT_CONFIG=y
+CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
+CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x2000000
+CONFIG_OF_STDOUT_VIA_ALIAS=y
+CONFIG_DISPLAY_BOARDINFO_LATE=y
+CONFIG_HUSH_PARSER=y
+CONFIG_SYS_MAXARGS=64
+CONFIG_SYS_BOOTM_LEN=0x4000000
+CONFIG_CMD_CACHE=y
+CONFIG_OF_EMBED=y
+CONFIG_CLK=y

diff --git a/include/configs/bcm96858.h b/include/configs/bcm96858.h
new file mode 100644 (file)
index 0000000..4e584b4
--- /dev/null
+++ b/include/configs/bcm96858.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * (C) Copyright 2022 Broadcom Ltd.
+ */
+
+#ifndef __BCM96858_H
+#define __BCM96858_H
+
+#define CONFIG_SYS_SDRAM_BASE          0x00000000
+
+#endif