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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: Tanmay Inamdar <tinamdar@apm.com>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
This commit is contained in:
Tanmay Inamdar 2011-11-28 21:01:41 +00:00 committed by Josh Boyer
parent fa8cbaaf5a
commit d5b9ee7b51
5 changed files with 307 additions and 0 deletions
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227
arch/powerpc/boot/dts/klondike.dts Normal file
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@ -0,0 +1,227 @@
/*
* 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";
};
};

55
arch/powerpc/configs/40x/klondike_defconfig Normal file
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@ -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

13
arch/powerpc/kernel/cputable.c
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@ -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,

11
arch/powerpc/platforms/40x/Kconfig
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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.

1
arch/powerpc/platforms/40x/ppc40x_simple.c
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@ -55,6 +55,7 @@ static const char *board[] __initdata = {
"amcc,haleakala",
"amcc,kilauea",
"amcc,makalu",
"apm,klondike",
"est,hotfoot"
};