[PATCH v2] arm: bcmbca: add bcm63138 SoC support
William Zhang
william.zhang at broadcom.com
Sat Aug 6 03:25:13 CEST 2022
BCM63138 is an ARM A9 based DSL Broadband SoC. It is part of the BCA
(Broadband Carrier Access origin) chipset family so it's added under
ARCH_BCMBCA platform. This initial support includes a bare-bone
implementation and dts with CPU subsystem, memory, ARM A9 global timer
and Broadcom uart.
This SoC is supported in the linux-next git repository so the dts and
dtsi files are stripped down version of linux copies with mininum blocks
needed by u-boot.
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.
This patch applies on top of the my previous patch [1].
[1] https://lists.denx.de/pipermail/u-boot/2022-August/490570.html
Signed-off-by: William Zhang <william.zhang at broadcom.com>
Reviewed-by: Florian Fainelli <f.fainelli at gmail.com>
---
Changes in v2:
- Drop bcmbca timer and use ARM A9 global timer instead as it is already
supported in u-boot
- Add Florian reviewed-by tag for v1 patch
MAINTAINERS | 1 +
arch/arm/dts/Makefile | 2 +
arch/arm/dts/bcm63138.dtsi | 149 +++++++++++++++++++++++++
arch/arm/dts/bcm963138.dts | 30 +++++
arch/arm/mach-bcmbca/Kconfig | 9 ++
arch/arm/mach-bcmbca/Makefile | 1 +
arch/arm/mach-bcmbca/bcm63138/Kconfig | 17 +++
arch/arm/mach-bcmbca/bcm63138/Makefile | 5 +
board/broadcom/bcmbca/Kconfig | 7 ++
configs/bcm963138_defconfig | 22 ++++
include/configs/bcm963138.h | 12 ++
11 files changed, 255 insertions(+)
create mode 100644 arch/arm/dts/bcm63138.dtsi
create mode 100644 arch/arm/dts/bcm963138.dts
create mode 100644 arch/arm/mach-bcmbca/bcm63138/Kconfig
create mode 100644 arch/arm/mach-bcmbca/bcm63138/Makefile
create mode 100644 configs/bcm963138_defconfig
create mode 100644 include/configs/bcm963138.h
diff --git a/MAINTAINERS b/MAINTAINERS
index 8c3a7d77f17d..2a27d15705cb 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -219,6 +219,7 @@ F: board/broadcom/bcmbca/
F: drivers/timer/bcmbca-timer.c
N: bcmbca
N: bcm[9]?47622
+N: bcm[9]?63138
N: bcm[9]?63148
N: bcm[9]?63178
N: bcm[9]?6756
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index b8d136bd129b..f4fa6f517744 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -1165,6 +1165,8 @@ dtb-$(CONFIG_ARCH_BCMSTB) += bcm7xxx.dtb
dtb-$(CONFIG_BCM47622) += \
bcm947622.dtb
+dtb-$(CONFIG_BCM63138) += \
+ bcm963138.dtb
dtb-$(CONFIG_BCM63148) += \
bcm963148.dtb
dtb-$(CONFIG_BCM63178) += \
diff --git a/arch/arm/dts/bcm63138.dtsi b/arch/arm/dts/bcm63138.dtsi
new file mode 100644
index 000000000000..42b442aec9f4
--- /dev/null
+++ b/arch/arm/dts/bcm63138.dtsi
@@ -0,0 +1,149 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Broadcom BCM63138 DSL SoCs Device Tree
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+ compatible = "brcm,bcm63138", "brcm,bcmbca";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ interrupt-parent = <&gic>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu at 0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ next-level-cache = <&L2>;
+ reg = <0>;
+ enable-method = "brcm,bcm63138";
+ };
+
+ cpu at 1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ next-level-cache = <&L2>;
+ reg = <1>;
+ enable-method = "brcm,bcm63138";
+ };
+ };
+
+ clocks {
+ /* UBUS peripheral clock */
+ periph_clk: periph_clk {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <50000000>;
+ clock-output-names = "periph";
+ };
+
+ /* peripheral clock for system timer */
+ axi_clk: axi_clk {
+ #clock-cells = <0>;
+ compatible = "fixed-factor-clock";
+ clocks = <&armpll>;
+ clock-div = <2>;
+ clock-mult = <1>;
+ };
+
+ /* APB bus clock */
+ apb_clk: apb_clk {
+ #clock-cells = <0>;
+ compatible = "fixed-factor-clock";
+ clocks = <&armpll>;
+ clock-div = <4>;
+ clock-mult = <1>;
+ };
+ };
+
+ /* ARM bus */
+ axi at 80000000 {
+ compatible = "simple-bus";
+ ranges = <0 0x80000000 0x784000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ L2: cache-controller at 1d000 {
+ compatible = "arm,pl310-cache";
+ reg = <0x1d000 0x1000>;
+ cache-unified;
+ cache-level = <2>;
+ cache-size = <524288>;
+ cache-sets = <1024>;
+ cache-line-size = <32>;
+ interrupts = <GIC_PPI 0 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ scu: scu at 1e000 {
+ compatible = "arm,cortex-a9-scu";
+ reg = <0x1e000 0x100>;
+ };
+
+ gic: interrupt-controller at 1f000 {
+ compatible = "arm,cortex-a9-gic";
+ reg = <0x1f000 0x1000
+ 0x1e100 0x100>;
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+ interrupt-controller;
+ };
+
+ global_timer: timer at 1e200 {
+ compatible = "arm,cortex-a9-global-timer";
+ reg = <0x1e200 0x20>;
+ interrupts = <GIC_PPI 11 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&axi_clk>;
+ };
+
+ local_timer: local-timer at 1e600 {
+ compatible = "arm,cortex-a9-twd-timer";
+ reg = <0x1e600 0x20>;
+ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) |
+ IRQ_TYPE_EDGE_RISING)>;
+ clocks = <&axi_clk>;
+ };
+
+ twd_watchdog: watchdog at 1e620 {
+ compatible = "arm,cortex-a9-twd-wdt";
+ reg = <0x1e620 0x20>;
+ interrupts = <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) |
+ IRQ_TYPE_LEVEL_HIGH)>;
+ };
+
+ armpll: armpll at 20000 {
+ #clock-cells = <0>;
+ compatible = "brcm,bcm63138-armpll";
+ clocks = <&periph_clk>;
+ reg = <0x20000 0xf00>;
+ };
+ };
+
+ /* Legacy UBUS base */
+ bus at fffe8000 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0xfffe8000 0x8000>;
+
+ timer0: timer at 80 {
+ compatible = "brcm,bcmbca-periph-timer";
+ reg = <0x80 0x28>;
+ clocks = <&periph_clk>;
+ };
+
+ uart0: serial at 600 {
+ compatible = "brcm,bcm6345-uart";
+ reg = <0x600 0x20>;
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&periph_clk>;
+ clock-names = "refclk";
+ status = "disabled";
+ };
+ };
+};
diff --git a/arch/arm/dts/bcm963138.dts b/arch/arm/dts/bcm963138.dts
new file mode 100644
index 000000000000..6158a8733554
--- /dev/null
+++ b/arch/arm/dts/bcm963138.dts
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2022 Broadcom Ltd.
+ */
+
+/dts-v1/;
+
+#include "bcm63138.dtsi"
+
+/ {
+ model = "Broadcom BCM963138 Reference Board";
+ compatible = "brcm,bcm963138", "brcm,bcm63138", "brcm,bcmbca";
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ memory at 0 {
+ device_type = "memory";
+ reg = <0x0 0x08000000>;
+ };
+};
+
+&uart0 {
+ status = "okay";
+};
diff --git a/arch/arm/mach-bcmbca/Kconfig b/arch/arm/mach-bcmbca/Kconfig
index 9a29c4186bf0..785b3df5dcc2 100644
--- a/arch/arm/mach-bcmbca/Kconfig
+++ b/arch/arm/mach-bcmbca/Kconfig
@@ -12,6 +12,14 @@ config BCM47622
select DM_SERIAL
select PL01X_SERIAL
+config BCM63138
+ bool "Support for Broadcom 63138 Family"
+ select TIMER
+ select STI_TIMER
+ select CPU_V7A
+ select DM_SERIAL
+ select BCM6345_SERIAL
+
config BCM63148
bool "Support for Broadcom 63148 Family"
select SYS_ARCH_TIMER
@@ -48,6 +56,7 @@ config BCM6878
select PL01X_SERIAL
source "arch/arm/mach-bcmbca/bcm47622/Kconfig"
+source "arch/arm/mach-bcmbca/bcm63138/Kconfig"
source "arch/arm/mach-bcmbca/bcm63148/Kconfig"
source "arch/arm/mach-bcmbca/bcm63178/Kconfig"
source "arch/arm/mach-bcmbca/bcm6756/Kconfig"
diff --git a/arch/arm/mach-bcmbca/Makefile b/arch/arm/mach-bcmbca/Makefile
index 8a22f9ad975d..d917615c1669 100644
--- a/arch/arm/mach-bcmbca/Makefile
+++ b/arch/arm/mach-bcmbca/Makefile
@@ -4,6 +4,7 @@
#
obj-$(CONFIG_BCM47622) += bcm47622/
+obj-$(CONFIG_BCM63138) += bcm63138/
obj-$(CONFIG_BCM63148) += bcm63148/
obj-$(CONFIG_BCM63178) += bcm63178/
obj-$(CONFIG_BCM6756) += bcm6756/
diff --git a/arch/arm/mach-bcmbca/bcm63138/Kconfig b/arch/arm/mach-bcmbca/bcm63138/Kconfig
new file mode 100644
index 000000000000..a34888d231d3
--- /dev/null
+++ b/arch/arm/mach-bcmbca/bcm63138/Kconfig
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2022 Broadcom Ltd
+#
+
+if BCM63138
+
+config TARGET_BCM963138
+ bool "Broadcom 63138 Reference Board"
+ depends on ARCH_BCMBCA
+
+config SYS_SOC
+ default "bcm63138"
+
+source "board/broadcom/bcmbca/Kconfig"
+
+endif
diff --git a/arch/arm/mach-bcmbca/bcm63138/Makefile b/arch/arm/mach-bcmbca/bcm63138/Makefile
new file mode 100644
index 000000000000..beb979af7520
--- /dev/null
+++ b/arch/arm/mach-bcmbca/bcm63138/Makefile
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2022 Broadcom Ltd
+#
+obj- += dummy.o
diff --git a/board/broadcom/bcmbca/Kconfig b/board/broadcom/bcmbca/Kconfig
index d070ebab707e..aefd7372d883 100644
--- a/board/broadcom/bcmbca/Kconfig
+++ b/board/broadcom/bcmbca/Kconfig
@@ -16,6 +16,13 @@ config SYS_CONFIG_NAME
endif
+if TARGET_BCM963138
+
+config SYS_CONFIG_NAME
+ default "bcm963138"
+
+endif
+
if TARGET_BCM963148
config SYS_CONFIG_NAME
diff --git a/configs/bcm963138_defconfig b/configs/bcm963138_defconfig
new file mode 100644
index 000000000000..5aec7b896270
--- /dev/null
+++ b/configs/bcm963138_defconfig
@@ -0,0 +1,22 @@
+CONFIG_ARM=y
+CONFIG_ARCH_BCMBCA=y
+CONFIG_SYS_TEXT_BASE=0x01000000
+CONFIG_SYS_MALLOC_LEN=0x2000000
+CONFIG_SYS_MALLOC_F_LEN=0x8000
+CONFIG_BCM63138=y
+CONFIG_TARGET_BCM963138=y
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_DEFAULT_DEVICE_TREE="bcm963138"
+CONFIG_IDENT_STRING=" Broadcom BCM63138"
+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/bcm963138.h b/include/configs/bcm963138.h
new file mode 100644
index 000000000000..361569a8c5f0
--- /dev/null
+++ b/include/configs/bcm963138.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * (C) Copyright 2022 Broadcom Ltd.
+ */
+
+#ifndef __BCM963138_H
+#define __BCM963138_H
+
+#define CONFIG_SYS_SDRAM_BASE 0x00000000
+#define CONFIG_SYS_HZ_CLOCK 500000000
+
+#endif
--
2.37.1
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