Commit d5b9ee7b authored by Tanmay Inamdar's avatar Tanmay Inamdar Committed by Josh Boyer
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powerpc/40x: Add APM8018X SOC support 



The AppliedMicro APM8018X embedded processor targets embedded applications that
require low power and a small footprint. It features a PowerPC 405 processor
core built in a 65nm low-power CMOS process with a five-stage pipeline executing
up to one instruction per cycle. The family has 128-kbytes of on-chip memory,
a 128-bit local bus and on-chip DDR2 SDRAM controller with 16-bit interface.

Signed-off-by: default avatarTanmay Inamdar <tinamdar@apm.com>
Signed-off-by: default avatarJosh Boyer <jwboyer@gmail.com>
parent fa8cbaaf

arch/powerpc/boot/dts/klondike.dts

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Original line number Diff line number Diff line 
/*

 * Device Tree for Klondike (APM8018X) board.

 *

 * Copyright (c) 2010, Applied Micro Circuits Corporation

 * Author: Tanmay Inamdar <tinamdar@apm.com>

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License as

 * published by the Free Software Foundation; either version 2 of

 * the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,

 * MA 02111-1307 USA

 *

 */



/dts-v1/;



/ {

	#address-cells = <1>;

	#size-cells = <1>;

	model = "apm,klondike";

	compatible = "apm,klondike";

	dcr-parent = <&{/cpus/cpu@0}>;



	aliases {

		ethernet0 = &EMAC0;

		ethernet1 = &EMAC1;

	};



	cpus {

		#address-cells = <1>;

		#size-cells = <0>;



		cpu@0 {

			device_type = "cpu";

			model = "PowerPC,apm8018x";

			reg = <0x00000000>;

			clock-frequency = <300000000>; /* Filled in by U-Boot */

			timebase-frequency = <300000000>; /* Filled in by U-Boot */

			i-cache-line-size = <32>;

			d-cache-line-size = <32>;

			i-cache-size = <16384>; /* 16 kB */

			d-cache-size = <16384>; /* 16 kB */

			dcr-controller;

			dcr-access-method = "native";

		};

	};



	memory {

		device_type = "memory";

		reg = <0x00000000 0x20000000>; /* Filled in by U-Boot */

	};



	UIC0: interrupt-controller {

		compatible = "ibm,uic";

		interrupt-controller;

		cell-index = <0>;

		dcr-reg = <0x0c0 0x010>;

		#address-cells = <0>;

		#size-cells = <0>;

		#interrupt-cells = <2>;

	};



	UIC1: interrupt-controller1 {

		compatible = "ibm,uic";

		interrupt-controller;

		cell-index = <1>;

		dcr-reg = <0x0d0 0x010>;

		#address-cells = <0>;

		#size-cells = <0>;

		#interrupt-cells = <2>;

		interrupts = <0x1e 0x4 0x1f 0x4>; /* cascade */

		interrupt-parent = <&UIC0>;

	};



	UIC2: interrupt-controller2 {

		compatible = "ibm,uic";

		interrupt-controller;

		cell-index = <2>;

		dcr-reg = <0x0e0 0x010>;

		#address-cells = <0>;

		#size-cells = <0>;

		#interrupt-cells = <2>;

		interrupts = <0x0a 0x4 0x0b 0x4>; /* cascade */

		interrupt-parent = <&UIC0>;

	};



	UIC3: interrupt-controller3 {

		compatible = "ibm,uic";

		interrupt-controller;

		cell-index = <3>;

		dcr-reg = <0x0f0 0x010>;

		#address-cells = <0>;

		#size-cells = <0>;

		#interrupt-cells = <2>;

		interrupts = <0x10 0x4 0x11 0x4>; /* cascade */

		interrupt-parent = <&UIC0>;

	};



	plb {

		compatible = "ibm,plb4";

		#address-cells = <1>;

		#size-cells = <1>;

		ranges;

		clock-frequency = <0>; /* Filled in by U-Boot */



		SDRAM0: memory-controller {

			compatible = "ibm,sdram-apm8018x";

			dcr-reg = <0x010 0x002>;

		};



		MAL0: mcmal {

			compatible = "ibm,mcmal2";

			dcr-reg = <0x180 0x062>;

			num-tx-chans = <2>;

			num-rx-chans = <16>;

			#address-cells = <0>;

			#size-cells = <0>;

			interrupt-parent = <&UIC1>;

			interrupts = </*TXEOB*/   0x6 0x4

					/*RXEOB*/ 0x7 0x4

					/*SERR*/  0x1 0x4

					/*TXDE*/  0x2 0x4

					/*RXDE*/  0x3 0x4>;

		};



		POB0: opb {

			compatible = "ibm,opb";

			#address-cells = <1>;

			#size-cells = <1>;

			ranges = <0x20000000 0x20000000 0x30000000

				  0x50000000 0x50000000 0x10000000

				  0x60000000 0x60000000 0x10000000

				  0xFE000000 0xFE000000 0x00010000>;

			dcr-reg = <0x100 0x020>;

			clock-frequency = <300000000>; /* Filled in by U-Boot */



			RGMII0: emac-rgmii@400a2000 {

				compatible = "ibm,rgmii";

				reg = <0x400a2000 0x00000010>;

				has-mdio;

			};



			TAH0: emac-tah@400a3000 {

				compatible = "ibm,tah";

				reg = <0x400a3000 0x100>;

			};



			TAH1: emac-tah@400a4000 {

				compatible = "ibm,tah";

				reg = <0x400a4000 0x100>;

			};



			EMAC0: ethernet@400a0000 {

				compatible = "ibm,emac4", "ibm-emac4sync";

				interrupt-parent = <&EMAC0>;

				interrupts = <0x0>;

				#interrupt-cells = <1>;

				#address-cells = <0>;

				#size-cells = <0>;

				interrupt-map = </*Status*/ 0x0 &UIC0 0x13 0x4>;

				reg = <0x400a0000 0x00000100>;

				local-mac-address = [000000000000]; /* Filled in by U-Boot */

				mal-device = <&MAL0>;

				mal-tx-channel = <0x0>;

				mal-rx-channel = <0x0>;

				cell-index = <0>;

				max-frame-size = <9000>;

				rx-fifo-size = <4096>;

				tx-fifo-size = <2048>;

				phy-mode = "rgmii";

				phy-address = <0x2>;

				turbo = "no";

				phy-map = <0x00000000>;

				rgmii-device = <&RGMII0>;

				rgmii-channel = <0>;

				tah-device = <&TAH0>;

				tah-channel = <0>;

				has-inverted-stacr-oc;

				has-new-stacr-staopc;

			};



			EMAC1: ethernet@400a1000 {

				compatible = "ibm,emac4", "ibm-emac4sync";

				status = "disabled";

				interrupt-parent = <&EMAC1>;

				interrupts = <0x0>;

				#interrupt-cells = <1>;

				#address-cells = <0>;

				#size-cells = <0>;

				interrupt-map = </*Status*/ 0x0 &UIC0 0x14 0x4>;

				reg = <0x400a1000 0x00000100>;

				local-mac-address = [000000000000]; /* Filled in by U-Boot */

				mal-device = <&MAL0>;

				mal-tx-channel = <1>;

				mal-rx-channel = <8>;

				cell-index = <1>;

				max-frame-size = <9000>;

				rx-fifo-size = <4096>;

				tx-fifo-size = <2048>;

				phy-mode = "rgmii";

				phy-address = <0x3>;

				turbo = "no";

				phy-map = <0x00000000>;

				rgmii-device = <&RGMII0>;

				rgmii-channel = <1>;

				tah-device = <&TAH1>;

				tah-channel = <0>;

				has-inverted-stacr-oc;

				has-new-stacr-staopc;

				mdio-device = <&EMAC0>;

			};

		};

	};



	chosen {

		linux,stdout-path = "/plb/opb/serial@50001000";

	};

};

arch/powerpc/configs/40x/klondike_defconfig

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CONFIG_40x=y

CONFIG_EXPERIMENTAL=y

CONFIG_SYSVIPC=y

CONFIG_LOG_BUF_SHIFT=14

CONFIG_SYSFS_DEPRECATED=y

CONFIG_SYSFS_DEPRECATED_V2=y

CONFIG_BLK_DEV_INITRD=y

CONFIG_SYSCTL_SYSCALL=y

CONFIG_EMBEDDED=y

CONFIG_SLAB=y

CONFIG_MODULES=y

CONFIG_MODULE_UNLOAD=y

# CONFIG_WALNUT is not set

CONFIG_APM8018X=y

# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set

CONFIG_MATH_EMULATION=y

# CONFIG_MIGRATION is not set

# CONFIG_SUSPEND is not set

CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"

CONFIG_PROC_DEVICETREE=y

CONFIG_BLK_DEV_RAM=y

CONFIG_BLK_DEV_RAM_SIZE=35000

CONFIG_SCSI=y

CONFIG_BLK_DEV_SD=y

CONFIG_CHR_DEV_SG=y

CONFIG_SCSI_SAS_ATTRS=y

# CONFIG_INPUT is not set

# CONFIG_SERIO is not set

# CONFIG_VT is not set

# CONFIG_UNIX98_PTYS is not set

# CONFIG_LEGACY_PTYS is not set

# CONFIG_DEVKMEM is not set

# CONFIG_HW_RANDOM is not set

# CONFIG_HWMON is not set

# CONFIG_USB_SUPPORT is not set

# CONFIG_IOMMU_SUPPORT is not set

CONFIG_EXT2_FS=y

CONFIG_EXT3_FS=y

# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set

CONFIG_EXT4_FS=y

CONFIG_MSDOS_FS=y

CONFIG_VFAT_FS=y

CONFIG_PROC_KCORE=y

CONFIG_TMPFS=y

CONFIG_CRAMFS=y

CONFIG_NLS_CODEPAGE_437=y

CONFIG_NLS_ASCII=y

CONFIG_NLS_ISO8859_1=y

CONFIG_NLS_UTF8=y

CONFIG_AVERAGE=y

CONFIG_MAGIC_SYSRQ=y

# CONFIG_SCHED_DEBUG is not set

# CONFIG_DEBUG_BUGVERBOSE is not set

CONFIG_SYSCTL_SYSCALL_CHECK=y

# CONFIG_FTRACE is not set

arch/powerpc/kernel/cputable.c

+13 −0
Original line number Diff line number Diff line
@@ -1505,6 +1505,19 @@ static struct cpu_spec __initdata cpu_specs[] = { 
		.machine_check		= machine_check_4xx,

		.platform		= "ppc405",

	},

	{	/* APM8018X */

		.pvr_mask		= 0xffff0000,

		.pvr_value		= 0x7ff11432,

		.cpu_name		= "APM8018X",

		.cpu_features		= CPU_FTRS_40X,

		.cpu_user_features	= PPC_FEATURE_32 |

			PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC,

		.mmu_features		= MMU_FTR_TYPE_40x,

		.icache_bsize		= 32,

		.dcache_bsize		= 32,

		.machine_check		= machine_check_4xx,

		.platform		= "ppc405",

	},

	{	/* default match */

		.pvr_mask		= 0x00000000,

		.pvr_value		= 0x00000000,

arch/powerpc/platforms/40x/Kconfig

+11 −0
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@@ -186,3 +186,14 @@ config IBM405_ERR51 
#	bool

#	depends on !STB03xxx && PPC4xx_DMA

#	default y

#



config APM8018X

	bool "APM8018X"

	depends on 40x

	default n

	select PPC40x_SIMPLE

	help

	  This option enables support for the AppliedMicro APM8018X evaluation

	  board.

arch/powerpc/platforms/40x/ppc40x_simple.c

+1 −0
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@@ -55,6 +55,7 @@ static const char *board[] __initdata = { 
	"amcc,haleakala",

	"amcc,kilauea",

	"amcc,makalu",

	"apm,klondike",

	"est,hotfoot"

};

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