arm: support for Cavium Celestial CNC1800L
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haru
parent
973ef09590
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8d740c808f
1
.gitignore
vendored
1
.gitignore
vendored
@ -52,6 +52,7 @@
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*.zst
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Module.symvers
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modules.order
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uImage
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#
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# Top-level generic files
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@ -432,6 +432,8 @@ source "arch/arm/mach-bcm/Kconfig"
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source "arch/arm/mach-berlin/Kconfig"
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source "arch/arm/mach-celestial/Kconfig"
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source "arch/arm/mach-clps711x/Kconfig"
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source "arch/arm/mach-cns3xxx/Kconfig"
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@ -293,6 +293,14 @@ choice
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If you have a Broadcom STB chip and would like early print
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messages to appear over the UART, select this option.
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config DEBUG_CELESTIAL_UART
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bool "Kernel low-level debugging on CNC1800L"
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depends on MACH_CELESTIAL
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select DEBUG_UART_8250
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help
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Say Y here if you want kernel low-level debugging support
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on Celestial platforms.
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config DEBUG_CLPS711X_UART1
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bool "Kernel low-level debugging messages via UART1"
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depends on ARCH_CLPS711X
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@ -1622,6 +1630,7 @@ config DEBUG_UART_8250
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config DEBUG_UART_PHYS
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hex "Physical base address of debug UART"
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default 0x801f1000 if DEBUG_CELESTIAL_UART
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default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
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default 0x01c28000 if DEBUG_SUNXI_UART0
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default 0x01c28400 if DEBUG_SUNXI_UART1
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@ -1764,6 +1773,7 @@ config DEBUG_UART_PHYS
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config DEBUG_UART_VIRT
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hex "Virtual base address of debug UART"
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default 0xfec00000 if DEBUG_CELESTIAL_UART
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default 0xc881f000 if DEBUG_RV1108_UART2
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default 0xc8821000 if DEBUG_RV1108_UART1
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default 0xc8912000 if DEBUG_RV1108_UART0
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@ -168,6 +168,7 @@ machine-$(CONFIG_ARCH_AT91) += at91
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machine-$(CONFIG_ARCH_AXXIA) += axxia
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machine-$(CONFIG_ARCH_BCM) += bcm
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machine-$(CONFIG_ARCH_BERLIN) += berlin
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machine-$(CONFIG_MACH_CELESTIAL) += celestial
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machine-$(CONFIG_ARCH_CLPS711X) += clps711x
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machine-$(CONFIG_ARCH_CNS3XXX) += cns3xxx
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machine-$(CONFIG_ARCH_DAVINCI) += davinci
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@ -5,6 +5,8 @@ dtb-$(CONFIG_MACH_ARTPEC6) += \
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artpec6-devboard.dtb
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dtb-$(CONFIG_MACH_ASM9260) += \
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alphascale-asm9260-devkit.dtb
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dtb-$(CONFIG_MACH_CELESTIAL) += \
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celestial-cnc1800l.dtb
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# Keep at91 dtb files sorted alphabetically for each SoC
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dtb-$(CONFIG_SOC_AT91RM9200) += \
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at91rm9200ek.dtb \
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118
arch/arm/boot/dts/celestial-cnc1800l.dts
Normal file
118
arch/arm/boot/dts/celestial-cnc1800l.dts
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@ -0,0 +1,118 @@
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/dts-v1/;
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/ {
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#address-cells = <1>;
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#size-cells = <1>;
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interrupt-parent = <&vic>;
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model = "Cavium Celestial CNC1800L";
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compatible = "cavium,cnc1800l";
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aliases {
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serial0 = &uart0;
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};
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chosen {
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stdout-path = "serial0:115200n8";
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};
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memory {
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device_type = "memory";
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reg = <0x00000000 0x088fffff>;
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};
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cpus {
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#address-cells = <0>;
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#size-cells = <0>;
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cpu {
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compatible = "arm,arm1176jzf";
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device_type = "cpu";
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};
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};
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clocks{
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timclk: timclk{
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <94500000>;
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};
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pclk: pclk{
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <47250000>;
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};
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};
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vic: interrupt-controller@10130000 {
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compatible = "snps,dw-apb-ictl";
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reg = <0x80140000 0x1000>;
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interrupt-controller;
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#interrupt-cells = <1>;
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};
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timer0: timer@801e2000 {
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compatible = "snps,dw-apb-timer-cnc1800l";
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reg = <0x801e2000 0x100>;
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clocks = <&pclk>;
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};
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timer1: timer@80270000 {
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compatible = "cavium,cnc1800l-timer";
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reg = <0x80270000 0x100>;
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clocks = <&timclk>;
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interrupts = <4>;
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};
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watchdog0: wd@801e1000 {
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compatible = "snps,dw-wdt", "cavium,cnc1800l-wdt";
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reg = <0x801e1000 0x100>;
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interrupts = <0>;
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clocks = <&timclk>;
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};
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uart0: serial@801f1000 {
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compatible = "snps,dw-apb-uart";
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reg = <0x801f1000 0x100>;
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reg-io-width = <1>;
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clocks = <&pclk>;
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interrupts = <12>;
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reg-shift = <2>;
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};
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clock-controller@b2100000 {
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compatible = "cavium,cnc1800l-clockctrl";
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reg = <0xb2100000 0x1000>;
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clocks = <&pclk>;
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};
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usb0: ohci@80210000 {
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compatible = "cavium,cnc1800l-ohci", "usb-ohci";
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reg = <0x80210000 0x1000>;
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interrupts = <27>;
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};
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usb1: ehci@80210000 {
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compatible = "cavium,cnc1800l-ehci", "usb-ehci";
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reg = <0x80200000 0x1000>;
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interrupts = <22>;
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};
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nand0: nand@a4000000 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "cavium,cnc1800l-nand";
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reg = <0x80100000 0x48>, //SMC
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<0xa4000000 0x2000000>; //NAND
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};
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gpio@80260000 {
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compatible = "cavium,cnc1800l-gpio";
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reg = <0x80260000 0x100>;
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gpio-controller;
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#gpio-cells = <2>;
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// interrupts = <6>;
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cavium,nrdevs = <14>;
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};
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};
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8
arch/arm/mach-celestial/Kconfig
Normal file
8
arch/arm/mach-celestial/Kconfig
Normal file
@ -0,0 +1,8 @@
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config MACH_CELESTIAL
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bool "Celestial CNC1800L"
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depends on ARCH_MULTI_V6
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select DW_APB_ICTL
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select SERIAL_8250
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select SERIAL_8250_CONSOLE
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help
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Support for Cavium CNC1800L Soc.
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1
arch/arm/mach-celestial/Makefile
Normal file
1
arch/arm/mach-celestial/Makefile
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@ -0,0 +1 @@
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obj-$(CONFIG_MACH_CELESTIAL) := cnc1800l_machine.o
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79
arch/arm/mach-celestial/cnc1800l_machine.c
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79
arch/arm/mach-celestial/cnc1800l_machine.c
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@ -0,0 +1,79 @@
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#include <linux/clocksource.h>
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#include <linux/dma-mapping.h>
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#include <linux/io.h>
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#include <linux/irqchip.h>
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#include <linux/irqchip/arm-gic.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include <linux/clk-provider.h>
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#include <linux/regmap.h>
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#include <linux/smp.h>
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#include <asm/smp_scu.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/psci.h>
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#include <linux/arm-smccc.h>
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#define CNC1800L_VIRT_UART0 0xfec00000
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#define CNC1800L_PHYS_UART0 0x801f1000
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static struct map_desc cnc1800l_of_io_desc[] __initdata = {
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#ifdef CONFIG_DEBUG_CELESTIAL_UART
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{
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.virtual = CNC1800L_VIRT_UART0,
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.pfn = __phys_to_pfn(CNC1800L_PHYS_UART0),
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.length = SZ_4K,
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.type = MT_DEVICE,
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},
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#endif
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};
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static void __init cnc1800l_of_map_io(void)
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{
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iotable_init(cnc1800l_of_io_desc, ARRAY_SIZE(cnc1800l_of_io_desc));
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}
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static void __init cnc1800l_init_machine(void)
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{
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return;
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}
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//based on board_bcm281xx.c
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static void cnc1800l_restart(enum reboot_mode mode, const char *cmd){
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struct device_node *np_wdog;
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unsigned short __iomem *p;
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np_wdog = of_find_compatible_node(NULL, NULL, "cavium,cnc1800l-wdt");
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if (!np_wdog) {
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pr_emerg("Couldn't find cavium,cnc1800l-wdt\n");
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return;
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}
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p = (unsigned short*)of_iomap(np_wdog, 0);
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of_node_put(np_wdog);
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if (!p) {
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pr_emerg("failed to obtain wdt vaddress\n");
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return;
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}
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/* WDT_TORR */
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p[2] = 0x0;
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p[3] = 0x0;
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/* WDT_CCVR */
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p[4] = 0x0;
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p[5] = 0x0;
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//reload
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*((u32*)&p[6]) = 0x76;
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/* WDT_CR, enable WDT and generated System Reset */
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p[0] = 0x1;
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while(1);
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}
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static const char * const cnc1800l_dt_match[] = {
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"cavium,cnc1800l",
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NULL
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};
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DT_MACHINE_START(CNC1800L, "Cavium Celestial CNC1800L")
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.map_io = cnc1800l_of_map_io,
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.init_machine = cnc1800l_init_machine,
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.restart = cnc1800l_restart,
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.dt_compat = cnc1800l_dt_match,
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MACHINE_END
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