diff options
author | Vineet Gupta <vgupta@synopsys.com> | 2015-03-09 14:33:40 +0530 |
---|---|---|
committer | Vineet Gupta <vgupta@synopsys.com> | 2015-06-25 06:00:20 +0530 |
commit | 5fa2daaa8d8223d06fcdba171a7a668dc8e8b179 (patch) | |
tree | 5132e9df1f44b37430a15b28e4f60cfbf1c037be /arch/arc | |
parent | e0183f523025f96e2053200616a6d602ea2b3451 (diff) | |
download | linux-stable-5fa2daaa8d8223d06fcdba171a7a668dc8e8b179.tar.gz linux-stable-5fa2daaa8d8223d06fcdba171a7a668dc8e8b179.tar.bz2 linux-stable-5fa2daaa8d8223d06fcdba171a7a668dc8e8b179.zip |
ARCv2: [axs103] Support ARC SDP FPGA platform for HS38x cores
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc')
-rw-r--r-- | arch/arc/boot/dts/axc003.dtsi | 102 | ||||
-rw-r--r-- | arch/arc/boot/dts/axc003_idu.dtsi | 126 | ||||
-rw-r--r-- | arch/arc/boot/dts/axs103.dts | 24 | ||||
-rw-r--r-- | arch/arc/boot/dts/axs103_idu.dts | 24 | ||||
-rw-r--r-- | arch/arc/configs/axs103_defconfig | 117 | ||||
-rw-r--r-- | arch/arc/configs/axs103_smp_defconfig | 118 | ||||
-rw-r--r-- | arch/arc/kernel/devtree.c | 2 | ||||
-rw-r--r-- | arch/arc/plat-axs10x/Kconfig | 13 | ||||
-rw-r--r-- | arch/arc/plat-axs10x/axs10x.c | 198 |
9 files changed, 712 insertions, 12 deletions
diff --git a/arch/arc/boot/dts/axc003.dtsi b/arch/arc/boot/dts/axc003.dtsi new file mode 100644 index 000000000000..15c8d6226c9d --- /dev/null +++ b/arch/arc/boot/dts/axc003.dtsi @@ -0,0 +1,102 @@ +/* + * Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/* + * Device tree for AXC003 CPU card: HS38x UP configuration + */ + +/ { + compatible = "snps,arc"; + clock-frequency = <75000000>; + #address-cells = <1>; + #size-cells = <1>; + + cpu_card { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + + ranges = <0x00000000 0xf0000000 0x10000000>; + + cpu_intc: archs-intc@cpu { + compatible = "snps,archs-intc"; + interrupt-controller; + #interrupt-cells = <1>; + }; + + /* + * this GPIO block ORs all interrupts on CPU card (creg,..) + * to uplink only 1 IRQ to ARC core intc + */ + dw-apb-gpio@0x2000 { + compatible = "snps,dw-apb-gpio"; + reg = < 0x2000 0x80 >; + #address-cells = <1>; + #size-cells = <0>; + + ictl_intc: gpio-controller@0 { + compatible = "snps,dw-apb-gpio-port"; + gpio-controller; + #gpio-cells = <2>; + snps,nr-gpios = <30>; + reg = <0>; + interrupt-controller; + #interrupt-cells = <2>; + interrupt-parent = <&cpu_intc>; + interrupts = <25>; + }; + }; + + debug_uart: dw-apb-uart@0x5000 { + compatible = "snps,dw-apb-uart"; + reg = <0x5000 0x100>; + clock-frequency = <33333000>; + interrupt-parent = <&ictl_intc>; + interrupts = <2 4>; + baud = <115200>; + reg-shift = <2>; + reg-io-width = <4>; + }; + + arcpct0: pct { + compatible = "snps,archs-pct"; + #interrupt-cells = <1>; + interrupt-parent = <&cpu_intc>; + interrupts = <20>; + }; + }; + + /* + * This INTC is actually connected to DW APB GPIO + * which acts as a wire between MB INTC and CPU INTC. + * GPIO INTC is configured in platform init code + * and here we mimic direct connection from MB INTC to + * CPU INTC, thus we set "interrupts = <7>" instead of + * "interrupts = <12>" + * + * This intc actually resides on MB, but we move it here to + * avoid duplicating the MB dtsi file given that IRQ from + * this intc to cpu intc are different for axs101 and axs103 + */ + mb_intc: dw-apb-ictl@0xe0012000 { + #interrupt-cells = <1>; + compatible = "snps,dw-apb-ictl"; + reg = < 0xe0012000 0x200 >; + interrupt-controller; + interrupt-parent = <&cpu_intc>; + interrupts = < 24 >; + }; + + memory { + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x00000000 0x80000000 0x40000000>; + device_type = "memory"; + reg = <0x00000000 0x20000000>; /* 512MiB */ + }; +}; diff --git a/arch/arc/boot/dts/axc003_idu.dtsi b/arch/arc/boot/dts/axc003_idu.dtsi new file mode 100644 index 000000000000..199d42820eca --- /dev/null +++ b/arch/arc/boot/dts/axc003_idu.dtsi @@ -0,0 +1,126 @@ +/* + * Copyright (C) 2014, 2015 Synopsys, Inc. (www.synopsys.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/* + * Device tree for AXC003 CPU card: HS38x2 (Dual Core) with IDU intc + */ + +/ { + compatible = "snps,arc"; + clock-frequency = <75000000>; + #address-cells = <1>; + #size-cells = <1>; + + cpu_card { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + + ranges = <0x00000000 0xf0000000 0x10000000>; + + cpu_intc: archs-intc@cpu { + compatible = "snps,archs-intc"; + interrupt-controller; + #interrupt-cells = <1>; + }; + + idu_intc: idu-interrupt-controller { + compatible = "snps,archs-idu-intc"; + interrupt-controller; + interrupt-parent = <&cpu_intc>; + + /* + * <hwirq distribution> + * distribution: 0=RR; 1=cpu0, 2=cpu1, 4=cpu2, 8=cpu3 + */ + #interrupt-cells = <2>; + + /* + * upstream irqs to core intc - downstream these are + * "COMMON" irq 0,1.. + */ + interrupts = <24 25>; + }; + + /* + * this GPIO block ORs all interrupts on CPU card (creg,..) + * to uplink only 1 IRQ to ARC core intc + */ + dw-apb-gpio@0x2000 { + compatible = "snps,dw-apb-gpio"; + reg = < 0x2000 0x80 >; + #address-cells = <1>; + #size-cells = <0>; + + ictl_intc: gpio-controller@0 { + compatible = "snps,dw-apb-gpio-port"; + gpio-controller; + #gpio-cells = <2>; + snps,nr-gpios = <30>; + reg = <0>; + interrupt-controller; + #interrupt-cells = <2>; + interrupt-parent = <&idu_intc>; + + /* + * cmn irq 1 -> cpu irq 25 + * Distribute to cpu0 only + */ + interrupts = <1 1>; + }; + }; + + debug_uart: dw-apb-uart@0x5000 { + compatible = "snps,dw-apb-uart"; + reg = <0x5000 0x100>; + clock-frequency = <33333000>; + interrupt-parent = <&ictl_intc>; + interrupts = <2 4>; + baud = <115200>; + reg-shift = <2>; + reg-io-width = <4>; + }; + + arcpct0: pct { + compatible = "snps,archs-pct"; + #interrupt-cells = <1>; + interrupt-parent = <&cpu_intc>; + interrupts = <20>; + }; + }; + + /* + * This INTC is actually connected to DW APB GPIO + * which acts as a wire between MB INTC and CPU INTC. + * GPIO INTC is configured in platform init code + * and here we mimic direct connection from MB INTC to + * CPU INTC, thus we set "interrupts = <0 1>" instead of + * "interrupts = <12>" + * + * This intc actually resides on MB, but we move it here to + * avoid duplicating the MB dtsi file given that IRQ from + * this intc to cpu intc are different for axs101 and axs103 + */ + mb_intc: dw-apb-ictl@0xe0012000 { + #interrupt-cells = <1>; + compatible = "snps,dw-apb-ictl"; + reg = < 0xe0012000 0x200 >; + interrupt-controller; + interrupt-parent = <&idu_intc>; + interrupts = <0 1>; /* cmn irq 0 -> cpu irq 24 + distribute to cpu0 only */ + }; + + memory { + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x00000000 0x80000000 0x40000000>; + device_type = "memory"; + reg = <0x00000000 0x20000000>; /* 512MiB */ + }; +}; diff --git a/arch/arc/boot/dts/axs103.dts b/arch/arc/boot/dts/axs103.dts new file mode 100644 index 000000000000..e6d0e31ea299 --- /dev/null +++ b/arch/arc/boot/dts/axs103.dts @@ -0,0 +1,24 @@ +/* + * Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/* + * Device Tree for AXS103 SDP with AXS10X Main Board and + * AXC003 FPGA Card (with UP bitfile) + */ +/dts-v1/; + +/include/ "axc003.dtsi" +/include/ "axs10x_mb.dtsi" + +/ { + compatible = "snps,axs103", "snps,arc-sdp"; + + chosen { + bootargs = "earlycon=uart8250,mmio32,0xe0022000,115200n8 console=ttyS3,115200n8 debug print-fatal-signals=1"; + }; +}; diff --git a/arch/arc/boot/dts/axs103_idu.dts b/arch/arc/boot/dts/axs103_idu.dts new file mode 100644 index 000000000000..f999fef5a60a --- /dev/null +++ b/arch/arc/boot/dts/axs103_idu.dts @@ -0,0 +1,24 @@ +/* + * Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/* + * Device Tree for AXS103 SDP with AXS10X Main Board and + * AXC003 FPGA Card (with SMP bitfile) + */ +/dts-v1/; + +/include/ "axc003_idu.dtsi" +/include/ "axs10x_mb.dtsi" + +/ { + compatible = "snps,axs103", "snps,arc-sdp"; + + chosen { + bootargs = "earlycon=uart8250,mmio32,0xe0022000,115200n8 console=ttyS3,115200n8 debug print-fatal-signals=1"; + }; +}; diff --git a/arch/arc/configs/axs103_defconfig b/arch/arc/configs/axs103_defconfig new file mode 100644 index 000000000000..83a6d8d5cc58 --- /dev/null +++ b/arch/arc/configs/axs103_defconfig @@ -0,0 +1,117 @@ +CONFIG_CROSS_COMPILE="arc-linux-uclibc-" +CONFIG_DEFAULT_HOSTNAME="ARCLinux" +# CONFIG_SWAP is not set +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +# CONFIG_CROSS_MEMORY_ATTACH is not set +CONFIG_NO_HZ_IDLE=y +CONFIG_HIGH_RES_TIMERS=y +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_NAMESPACES=y +# CONFIG_UTS_NS is not set +# CONFIG_PID_NS is not set +CONFIG_BLK_DEV_INITRD=y +CONFIG_INITRAMFS_SOURCE="../../arc_initramfs_hs/" +CONFIG_EMBEDDED=y +CONFIG_PERF_EVENTS=y +# CONFIG_VM_EVENT_COUNTERS is not set +# CONFIG_SLUB_DEBUG is not set +# CONFIG_COMPAT_BRK is not set +CONFIG_MODULES=y +CONFIG_PARTITION_ADVANCED=y +CONFIG_ARC_PLAT_AXS10X=y +CONFIG_AXS103=y +CONFIG_ISA_ARCV2=y +CONFIG_ARC_BUILTIN_DTB_NAME="axs103" +CONFIG_PREEMPT=y +# CONFIG_COMPACTION is not set +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_NET_KEY=y +CONFIG_INET=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +CONFIG_IP_PNP_BOOTP=y +CONFIG_IP_PNP_RARP=y +# CONFIG_INET_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET_XFRM_MODE_TUNNEL is not set +# CONFIG_INET_XFRM_MODE_BEET is not set +# CONFIG_IPV6 is not set +# CONFIG_STANDALONE is not set +# CONFIG_PREVENT_FIRMWARE_BUILD is not set +# CONFIG_FIRMWARE_IN_KERNEL is not set +CONFIG_MTD=y +CONFIG_MTD_CMDLINE_PARTS=y +CONFIG_MTD_BLOCK=y +CONFIG_MTD_NAND=y +CONFIG_MTD_NAND_AXS=y +CONFIG_SCSI=y +CONFIG_BLK_DEV_SD=y +CONFIG_NETDEVICES=y +# CONFIG_NET_VENDOR_ARC is not set +# CONFIG_NET_VENDOR_BROADCOM is not set +# CONFIG_NET_VENDOR_INTEL is not set +# CONFIG_NET_VENDOR_MARVELL is not set +# CONFIG_NET_VENDOR_MICREL is not set +# CONFIG_NET_VENDOR_NATSEMI is not set +# CONFIG_NET_VENDOR_SEEQ is not set +CONFIG_STMMAC_ETH=y +# CONFIG_NET_VENDOR_VIA is not set +# CONFIG_NET_VENDOR_WIZNET is not set +CONFIG_NATIONAL_PHY=y +# CONFIG_USB_NET_DRIVERS is not set +CONFIG_INPUT_EVDEV=y +CONFIG_MOUSE_PS2_TOUCHKIT=y +CONFIG_MOUSE_SERIAL=y +CONFIG_MOUSE_SYNAPTICS_USB=y +# CONFIG_LEGACY_PTYS is not set +# CONFIG_DEVKMEM is not set +CONFIG_SERIAL_8250=y +CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_8250_DW=y +CONFIG_SERIAL_OF_PLATFORM=y +# CONFIG_HW_RANDOM is not set +CONFIG_I2C=y +CONFIG_I2C_CHARDEV=y +CONFIG_I2C_DESIGNWARE_PLATFORM=y +# CONFIG_HWMON is not set +CONFIG_FB=y +# CONFIG_VGA_CONSOLE is not set +CONFIG_FRAMEBUFFER_CONSOLE=y +CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y +CONFIG_LOGO=y +# CONFIG_LOGO_LINUX_MONO is not set +# CONFIG_LOGO_LINUX_VGA16 is not set +# CONFIG_LOGO_LINUX_CLUT224 is not set +CONFIG_USB=y +CONFIG_USB_EHCI_HCD=y +CONFIG_USB_EHCI_HCD_PLATFORM=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_OHCI_HCD_PLATFORM=y +CONFIG_USB_STORAGE=y +CONFIG_MMC=y +CONFIG_MMC_SDHCI=y +CONFIG_MMC_SDHCI_PLTFM=y +CONFIG_MMC_DW=y +CONFIG_MMC_DW_IDMAC=y +# CONFIG_IOMMU_SUPPORT is not set +CONFIG_EXT3_FS=y +CONFIG_EXT4_FS=y +CONFIG_MSDOS_FS=y +CONFIG_VFAT_FS=y +CONFIG_NTFS_FS=y +CONFIG_TMPFS=y +CONFIG_JFFS2_FS=y +CONFIG_NFS_FS=y +CONFIG_NLS_CODEPAGE_437=y +CONFIG_NLS_ISO8859_1=y +# CONFIG_ENABLE_WARN_DEPRECATED is not set +# CONFIG_ENABLE_MUST_CHECK is not set +CONFIG_STRIP_ASM_SYMS=y +CONFIG_LOCKUP_DETECTOR=y +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10 +# CONFIG_SCHED_DEBUG is not set +# CONFIG_DEBUG_PREEMPT is not set +# CONFIG_FTRACE is not set diff --git a/arch/arc/configs/axs103_smp_defconfig b/arch/arc/configs/axs103_smp_defconfig new file mode 100644 index 000000000000..f1e1c84e0dda --- /dev/null +++ b/arch/arc/configs/axs103_smp_defconfig @@ -0,0 +1,118 @@ +CONFIG_CROSS_COMPILE="arc-linux-uclibc-" +CONFIG_DEFAULT_HOSTNAME="ARCLinux" +# CONFIG_SWAP is not set +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +# CONFIG_CROSS_MEMORY_ATTACH is not set +CONFIG_NO_HZ_IDLE=y +CONFIG_HIGH_RES_TIMERS=y +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_NAMESPACES=y +# CONFIG_UTS_NS is not set +# CONFIG_PID_NS is not set +CONFIG_BLK_DEV_INITRD=y +CONFIG_INITRAMFS_SOURCE="../../arc_initramfs_hs/" +CONFIG_EMBEDDED=y +CONFIG_PERF_EVENTS=y +# CONFIG_VM_EVENT_COUNTERS is not set +# CONFIG_COMPAT_BRK is not set +CONFIG_SLAB=y +CONFIG_MODULES=y +CONFIG_PARTITION_ADVANCED=y +CONFIG_ARC_PLAT_AXS10X=y +CONFIG_AXS103=y +CONFIG_ISA_ARCV2=y +CONFIG_SMP=y +CONFIG_ARC_BUILTIN_DTB_NAME="axs103_idu" +CONFIG_PREEMPT=y +# CONFIG_COMPACTION is not set +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_NET_KEY=y +CONFIG_INET=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +CONFIG_IP_PNP_BOOTP=y +CONFIG_IP_PNP_RARP=y +# CONFIG_INET_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET_XFRM_MODE_TUNNEL is not set +# CONFIG_INET_XFRM_MODE_BEET is not set +# CONFIG_IPV6 is not set +# CONFIG_STANDALONE is not set +# CONFIG_PREVENT_FIRMWARE_BUILD is not set +# CONFIG_FIRMWARE_IN_KERNEL is not set +CONFIG_MTD=y +CONFIG_MTD_CMDLINE_PARTS=y +CONFIG_MTD_BLOCK=y +CONFIG_MTD_NAND=y +CONFIG_MTD_NAND_AXS=y +CONFIG_SCSI=y +CONFIG_BLK_DEV_SD=y +CONFIG_NETDEVICES=y +# CONFIG_NET_VENDOR_ARC is not set +# CONFIG_NET_VENDOR_BROADCOM is not set +# CONFIG_NET_VENDOR_INTEL is not set +# CONFIG_NET_VENDOR_MARVELL is not set +# CONFIG_NET_VENDOR_MICREL is not set +# CONFIG_NET_VENDOR_NATSEMI is not set +# CONFIG_NET_VENDOR_SEEQ is not set +CONFIG_STMMAC_ETH=y +# CONFIG_NET_VENDOR_VIA is not set +# CONFIG_NET_VENDOR_WIZNET is not set +CONFIG_NATIONAL_PHY=y +# CONFIG_USB_NET_DRIVERS is not set +CONFIG_INPUT_EVDEV=y +CONFIG_MOUSE_PS2_TOUCHKIT=y +CONFIG_MOUSE_SERIAL=y +CONFIG_MOUSE_SYNAPTICS_USB=y +# CONFIG_LEGACY_PTYS is not set +# CONFIG_DEVKMEM is not set +CONFIG_SERIAL_8250=y +CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_8250_DW=y +CONFIG_SERIAL_OF_PLATFORM=y +# CONFIG_HW_RANDOM is not set +CONFIG_I2C=y +CONFIG_I2C_CHARDEV=y +CONFIG_I2C_DESIGNWARE_PLATFORM=y +# CONFIG_HWMON is not set +CONFIG_FB=y +# CONFIG_VGA_CONSOLE is not set +CONFIG_FRAMEBUFFER_CONSOLE=y +CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y +CONFIG_LOGO=y +# CONFIG_LOGO_LINUX_MONO is not set +# CONFIG_LOGO_LINUX_VGA16 is not set +# CONFIG_LOGO_LINUX_CLUT224 is not set +CONFIG_USB=y +CONFIG_USB_EHCI_HCD=y +CONFIG_USB_EHCI_HCD_PLATFORM=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_OHCI_HCD_PLATFORM=y +CONFIG_USB_STORAGE=y +CONFIG_MMC=y +CONFIG_MMC_SDHCI=y +CONFIG_MMC_SDHCI_PLTFM=y +CONFIG_MMC_DW=y +CONFIG_MMC_DW_IDMAC=y +# CONFIG_IOMMU_SUPPORT is not set +CONFIG_EXT3_FS=y +CONFIG_EXT4_FS=y +CONFIG_MSDOS_FS=y +CONFIG_VFAT_FS=y +CONFIG_NTFS_FS=y +CONFIG_TMPFS=y +CONFIG_JFFS2_FS=y +CONFIG_NFS_FS=y +CONFIG_NLS_CODEPAGE_437=y +CONFIG_NLS_ISO8859_1=y +# CONFIG_ENABLE_WARN_DEPRECATED is not set +# CONFIG_ENABLE_MUST_CHECK is not set +CONFIG_STRIP_ASM_SYMS=y +CONFIG_LOCKUP_DETECTOR=y +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10 +# CONFIG_SCHED_DEBUG is not set +# CONFIG_DEBUG_PREEMPT is not set +# CONFIG_FTRACE is not set diff --git a/arch/arc/kernel/devtree.c b/arch/arc/kernel/devtree.c index f801d46dc087..7e844fd8213f 100644 --- a/arch/arc/kernel/devtree.c +++ b/arch/arc/kernel/devtree.c @@ -33,7 +33,7 @@ static void __init arc_set_early_base_baud(unsigned long dt_root) if (of_flat_dt_is_compatible(dt_root, "abilis,arc-tb10x")) arc_base_baud = core_clk/3; else if (of_flat_dt_is_compatible(dt_root, "snps,arc-sdp")) - arc_base_baud = 33333333; /* Fixed 33MHz clk */ + arc_base_baud = 33333333; /* Fixed 33MHz clk (AXS10x) */ else arc_base_baud = core_clk; } diff --git a/arch/arc/plat-axs10x/Kconfig b/arch/arc/plat-axs10x/Kconfig index 45641ca8aba8..d475f9d4847c 100644 --- a/arch/arc/plat-axs10x/Kconfig +++ b/arch/arc/plat-axs10x/Kconfig @@ -6,7 +6,7 @@ # published by the Free Software Foundation. # -config ARC_PLAT_AXS10X +menuconfig ARC_PLAT_AXS10X bool "Synopsys ARC AXS10x Software Development Platforms" select DW_APB_ICTL select GPIO_DWAPB @@ -23,6 +23,7 @@ config ARC_PLAT_AXS10X if ARC_PLAT_AXS10X config AXS101 + depends on ISA_ARCOMPACT bool "AXS101 with AXC001 CPU Card (ARC 770D/EM6/AS221)" help This adds support for the 770D/EM6/AS221 CPU Card. Only the ARC @@ -32,4 +33,14 @@ config AXS101 this daughtercard. Please use the axs101.dts device tree with this configuration. +config AXS103 + bool "AXS103 with AXC003 CPU Card (ARC HS38x)" + depends on ISA_ARCV2 + help + This adds support for the HS38x CPU Card. + + The AXS103 Platform consists of an AXS10x mainboard with + this daughtercard. Please use the axs103.dts device tree + with this configuration. + endif diff --git a/arch/arc/plat-axs10x/axs10x.c b/arch/arc/plat-axs10x/axs10x.c index a1cecdaf9dca..ad0a7ef84660 100644 --- a/arch/arc/plat-axs10x/axs10x.c +++ b/arch/arc/plat-axs10x/axs10x.c @@ -1,5 +1,5 @@ /* - * AXS101 Software Development Platform + * AXS101/AXS103 Software Development Platform * * Copyright (C) 2013-15 Synopsys, Inc. (www.synopsys.com) * @@ -15,8 +15,10 @@ */ #include <linux/of_platform.h> -#include <asm/mach_desc.h> +#include <asm/clk.h> #include <asm/io.h> +#include <asm/mach_desc.h> +#include <asm/mcip.h> #define AXS_MB_CGU 0xE0010000 #define AXS_MB_CREG 0xE0011000 @@ -29,14 +31,6 @@ #define AXC001_CREG 0xF0001000 #define AXC001_GPIO_INTC 0xF0003000 -#define CREG_CPU_ADDR_770 (AXC001_CREG + 0x20) -#define CREG_CPU_ADDR_TUNN (AXC001_CREG + 0x60) -#define CREG_CPU_ADDR_770_UPD (AXC001_CREG + 0x34) -#define CREG_CPU_ADDR_TUNN_UPD (AXC001_CREG + 0x74) - -#define CREG_CPU_ARC770_IRQ_MUX (AXC001_CREG + 0x114) -#define CREG_CPU_GPIO_UART_MUX (AXC001_CREG + 0x120) - static void __init axs10x_enable_gpio_intc_wire(void) { /* @@ -83,6 +77,22 @@ static void __init axs10x_enable_gpio_intc_wire(void) iowrite32(1 << MB_TO_GPIO_IRQ, (void __iomem *) GPIO_INTEN); } +static inline void __init +write_cgu_reg(uint32_t value, void __iomem *reg, void __iomem *lock_reg) +{ + unsigned int loops = 128 * 1024, ctr; + + iowrite32(value, reg); + + ctr = loops; + while (((ioread32(lock_reg) & 1) == 1) && ctr--) /* wait for unlock */ + cpu_relax(); + + ctr = loops; + while (((ioread32(lock_reg) & 1) == 0) && ctr--) /* wait for re-lock */ + cpu_relax(); +} + static void __init axs10x_print_board_ver(unsigned int creg, const char *str) { union ver { @@ -118,6 +128,16 @@ static void __init axs10x_early_init(void) axs10x_print_board_ver(CREG_MB_VER, mb); } +#ifdef CONFIG_AXS101 + +#define CREG_CPU_ADDR_770 (AXC001_CREG + 0x20) +#define CREG_CPU_ADDR_TUNN (AXC001_CREG + 0x60) +#define CREG_CPU_ADDR_770_UPD (AXC001_CREG + 0x34) +#define CREG_CPU_ADDR_TUNN_UPD (AXC001_CREG + 0x74) + +#define CREG_CPU_ARC770_IRQ_MUX (AXC001_CREG + 0x114) +#define CREG_CPU_GPIO_UART_MUX (AXC001_CREG + 0x120) + /* * Set up System Memory Map for ARC cpu / peripherals controllers * @@ -287,6 +307,145 @@ static void __init axs101_early_init(void) axs10x_early_init(); } +#endif /* CONFIG_AXS101 */ + +#ifdef CONFIG_AXS103 + +#define AXC003_CGU 0xF0000000 +#define AXC003_CREG 0xF0001000 +#define AXC003_MST_AXI_TUNNEL 0 +#define AXC003_MST_HS38 1 + +#define CREG_CPU_AXI_M0_IRQ_MUX (AXC003_CREG + 0x440) +#define CREG_CPU_GPIO_UART_MUX (AXC003_CREG + 0x480) +#define CREG_CPU_TUN_IO_CTRL (AXC003_CREG + 0x494) + + +union pll_reg { + struct { +#ifdef CONFIG_CPU_BIG_ENDIAN + unsigned int pad:17, noupd:1, bypass:1, edge:1, high:6, low:6; +#else + unsigned int low:6, high:6, edge:1, bypass:1, noupd:1, pad:17; +#endif + }; + unsigned int val; +}; + +static unsigned int __init axs103_get_freq(void) +{ + union pll_reg idiv, fbdiv, odiv; + unsigned int f = 33333333; + + idiv.val = ioread32((void __iomem *)AXC003_CGU + 0x80 + 0); + fbdiv.val = ioread32((void __iomem *)AXC003_CGU + 0x80 + 4); + odiv.val = ioread32((void __iomem *)AXC003_CGU + 0x80 + 8); + + if (idiv.bypass != 1) + f = f / (idiv.low + idiv.high); + + if (fbdiv.bypass != 1) + f = f * (fbdiv.low + fbdiv.high); + + if (odiv.bypass != 1) + f = f / (odiv.low + odiv.high); + + f = (f + 500000) / 1000000; /* Rounding */ + return f; +} + +static inline unsigned int __init encode_div(unsigned int id, int upd) +{ + union pll_reg div; + + div.val = 0; + + div.noupd = !upd; + div.bypass = id == 1 ? 1 : 0; + div.edge = (id%2 == 0) ? 0 : 1; /* 0 = rising */ + div.low = (id%2 == 0) ? id >> 1 : (id >> 1)+1; + div.high = id >> 1; + + return div.val; +} + +noinline static void __init +axs103_set_freq(unsigned int id, unsigned int fd, unsigned int od) +{ + write_cgu_reg(encode_div(id, 0), + (void __iomem *)AXC003_CGU + 0x80 + 0, + (void __iomem *)AXC003_CGU + 0x110); + + write_cgu_reg(encode_div(fd, 0), + (void __iomem *)AXC003_CGU + 0x80 + 4, + (void __iomem *)AXC003_CGU + 0x110); + + write_cgu_reg(encode_div(od, 1), + (void __iomem *)AXC003_CGU + 0x80 + 8, + (void __iomem *)AXC003_CGU + 0x110); +} + +static void __init axs103_early_init(void) +{ + switch (arc_get_core_freq()/1000000) { + case 33: + axs103_set_freq(1, 1, 1); + break; + case 50: + axs103_set_freq(1, 30, 20); + break; + case 75: + axs103_set_freq(2, 45, 10); + break; + case 90: + axs103_set_freq(2, 54, 10); + break; + case 100: + axs103_set_freq(1, 30, 10); + break; + case 125: + axs103_set_freq(2, 45, 6); + break; + default: + /* + * In this case, core_frequency derived from + * DT "clock-frequency" might not match with board value. + * Hence update it to match the board value. + */ + arc_set_core_freq(axs103_get_freq() * 1000000); + break; + } + + pr_info("Freq is %dMHz\n", axs103_get_freq()); + + /* Memory maps already config in pre-bootloader */ + + /* set GPIO mux to UART */ + iowrite32(0x01, (void __iomem *) CREG_CPU_GPIO_UART_MUX); + + iowrite32((0x00100000U | 0x000C0000U | 0x00003322U), + (void __iomem *) CREG_CPU_TUN_IO_CTRL); + + /* Set up the AXS_MB interrupt system.*/ + iowrite32(12, (void __iomem *) (CREG_CPU_AXI_M0_IRQ_MUX + + (AXC003_MST_HS38 << 2))); + + /* connect ICTL - Main Board with GPIO line */ + iowrite32(0x01, (void __iomem *) CREG_MB_IRQ_MUX); + + axs10x_print_board_ver(AXC003_CREG + 4088, "AXC003 CPU Card"); + + axs10x_early_init(); + +#ifdef CONFIG_ARC_MCIP + /* No Hardware init, but filling the smp ops callbacks */ + mcip_init_early_smp(); +#endif +} +#endif + +#ifdef CONFIG_AXS101 + static const char *axs101_compat[] __initconst = { "snps,axs101", NULL, @@ -296,3 +455,22 @@ MACHINE_START(AXS101, "axs101") .dt_compat = axs101_compat, .init_early = axs101_early_init, MACHINE_END + +#endif /* CONFIG_AXS101 */ + +#ifdef CONFIG_AXS103 + +static const char *axs103_compat[] __initconst = { + "snps,axs103", + NULL, +}; + +MACHINE_START(AXS103, "axs103") + .dt_compat = axs103_compat, + .init_early = axs103_early_init, +#ifdef CONFIG_ARC_MCIP + .init_smp = mcip_init_smp, +#endif +MACHINE_END + +#endif /* CONFIG_AXS103 */ |