From d5b9ee7b514ee2f3df649fe38d01494ad7a8b956 Mon Sep 17 00:00:00 2001 From: Tanmay Inamdar Date: Mon, 28 Nov 2011 21:01:41 +0000 Subject: [PATCH] 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: Tanmay Inamdar Signed-off-by: Josh Boyer --- arch/powerpc/boot/dts/klondike.dts | 227 ++++++++++++++++++++ arch/powerpc/configs/40x/klondike_defconfig | 55 +++++ arch/powerpc/kernel/cputable.c | 13 ++ arch/powerpc/platforms/40x/Kconfig | 11 + arch/powerpc/platforms/40x/ppc40x_simple.c | 1 + 5 files changed, 307 insertions(+) create mode 100644 arch/powerpc/boot/dts/klondike.dts create mode 100644 arch/powerpc/configs/40x/klondike_defconfig diff --git a/arch/powerpc/boot/dts/klondike.dts b/arch/powerpc/boot/dts/klondike.dts new file mode 100644 index 00000000000..8c942903361 --- /dev/null +++ b/arch/powerpc/boot/dts/klondike.dts @@ -0,0 +1,227 @@ +/* + * Device Tree for Klondike (APM8018X) board. + * + * Copyright (c) 2010, Applied Micro Circuits Corporation + * Author: Tanmay Inamdar + * + * 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 = ; + }; + + 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 = ; + 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 = ; + 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"; + }; +}; diff --git a/arch/powerpc/configs/40x/klondike_defconfig b/arch/powerpc/configs/40x/klondike_defconfig new file mode 100644 index 00000000000..c0d228dc73d --- /dev/null +++ b/arch/powerpc/configs/40x/klondike_defconfig @@ -0,0 +1,55 @@ +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 diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index edae5bb06f1..ce59693835c 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -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, diff --git a/arch/powerpc/platforms/40x/Kconfig b/arch/powerpc/platforms/40x/Kconfig index 153022971da..8883f2c01a1 100644 --- a/arch/powerpc/platforms/40x/Kconfig +++ b/arch/powerpc/platforms/40x/Kconfig @@ -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. + diff --git a/arch/powerpc/platforms/40x/ppc40x_simple.c b/arch/powerpc/platforms/40x/ppc40x_simple.c index e8dd5c5df7d..2f8fde6521e 100644 --- a/arch/powerpc/platforms/40x/ppc40x_simple.c +++ b/arch/powerpc/platforms/40x/ppc40x_simple.c @@ -55,6 +55,7 @@ static const char *board[] __initdata = { "amcc,haleakala", "amcc,kilauea", "amcc,makalu", + "apm,klondike", "est,hotfoot" };