From: "mahendra varman" <mahendravarman15@gmail.com>
To: linuxppc-embedded@ozlabs.org., linux-kernel@vger.kernel.org
Subject: Doubt in Device tree entry for USB on Powerpc based board
Date: Fri, 22 Feb 2008 19:03:07 +0530 [thread overview]
Message-ID: <4ac2955e0802220533o3eba0e58ybb72326ab0e1a376@mail.gmail.com> (raw)
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Hello All
Iam using Powerpc 7448 processor along with TSI 109 system controller.
On PCI interface of TSI 109 a PCI to PCI bridge(6520) is connected in which
an usb controller(Philips ISP1562) and PMC site is connected.
Iam following the Open Firmware Powerpc architecture and using Linux 2.6.23.
I have framed the device tree for the above architecture with usb entry. But
even though i enable the ohci ppc of in menuconfig the the functions
probe,etc inside ohci ppc of.c are not called when i insert the device in
usb port and hence it is not detecting ohci low/full speed devices.
Please help me in the device tree where to give the device type
compatibility address_cells size cells for the USB (since usb controller is
in pci bridge i have some confusion in where to give the entry for usb)
I have attached the device tree below
-----------------------------------------------------------------------------------------------------------------------------------------------------------------
{ model = "CTP7448";
compatible = "mpc74xx";
#address-cells = <1>;
#size-cells = <1>;
cpus {
#address-cells = <1>;
#size-cells =<0>;
PowerPC,7448@0 {
device_type = "cpu";
reg = <0>;
d-cache-line-size = <20>; // 32 bytes
i-cache-line-size = <20>; // 32 bytes
d-cache-size = <8000>; // L1, 32K bytes
i-cache-size = <8000>; // L1, 32K bytes
timebase-frequency = <0>; // 33 MHz, from uboot
clock-frequency = <0>; // From U-Boot
bus-frequency = <0>; // From U-Boot
32-bit;
};
};
memory{
device_type = "memory";
reg = <00000000 10000000>; // DDR2 512M at 0
};
tsi108@c0000000 {
#address-cells = <1>;
#size-cells = <1>;
#interrupt-cells = <2>;
device_type = "tsi-bridge";
ranges = <00000000 c0000000 00010000
00000000 f0000000 00008000
00000000 f1000000 01000000
00000000 f8000000 01000000>;
reg = <c0000000 00010000>;
bus-frequency = <0>;
rtc@f0000000 {
device_type = "rtc";
compatible = "st,m48t59";
reg = <f0000000 8000>;
};
i2c@7000 {
interrupt-parent = <&mpic>;
interrupts = <E 0>;
reg = <7000 400>;
device_type = "i2c";
compatible = "tsi108-i2c";
};
MDIO: mdio@6000 {
device_type = "mdio";
compatible = "tsi108-mdio";
reg = <6000 50>;
#address-cells = <1>;
#size-cells = <0>;
phy1: ethernet-phy@1 {
interrupt-parent = <&mpic>;
interrupts = <0 0>;
reg = <1>;
device_type = "ethernet-phy";
};
phy8: ethernet-phy@8 {
interrupt-parent = <&mpic>;
interrupts = <1 0>;
reg = <8>;
device_type = "ethernet-phy";
};
};
ethernet@6200 {
#size-cells = <0>;
device_type = "network";
compatible = "tsi108-ethernet";
reg = <6000 200>;
address = [ 00 03 23 00 00 01 ];
interrupts = <10 0>;
interrupt-parent = <&mpic>;
mdio-handle = <&MDIO>;
phy-handle = <&phy1>;
};
ethernet@6600 {
#address-cells = <1>;
#size-cells = <0>;
device_type = "network";
compatible = "tsi108-ethernet";
reg = <6400 200>;
address = [ 00 03 23 00 00 02 ];
interrupts = <11 2>;
interrupt-parent = <&mpic>;
mdio-handle = <&MDIO>;
phy-handle = <&phy8>;
};
serial@7808 {
device_type = "serial";
compatible = "ns16550";
reg = <7808 200>;
clock-frequency = <3f6b5a00>;
interrupts = <c 0>;
interrupt-parent = <&mpic>;
};
serial@7c08 {
device_type = "serial";
compatible = "ns16550";
reg = <7c08 200>;
clock-frequency = <3f6b5a00>;
interrupts = <d 0>;
interrupt-parent = <&mpic>;
};
mpic: pic@7400 {
clock-frequency = <0>;
interrupt-controller;
#address-cells = <0>;
#interrupt-cells = <2>;
reg = <7400 400>;
built-in;
compatible = "chrp,open-pic";
device_type = "open-pic";
big-endian;
};
pci@1000 {
compatible = "tsi108-pci";
device_type = "pci";
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
reg = <1000 1000>;
bus-range = <0 0>;
ranges = <02000000 0 e0000000 e0000000 0 10000000
01000000 0 00000000 f2000000 0 01000000>;
clock-frequency = <3ef1480>;
interrupt-parent = <&mpic>;
interrupts = <17 2>;
interrupt-map-mask = <f800 0 0 7>;
interrupt-map = <
/* IDSEL 0x10 */
00000 0 0 1 &RT0 24 0
/* IDSEL 0x11 */
00800 0 0 1 &RT0 25 0
/* IDSEL 0x12 */
1000 0 0 1 &RT0 24 0
1000 0 0 2 &RT0 25 0
1000 0 0 3 &RT0 26 0
1000 0 0 4 &RT0 27 0 >;
pci_bridge@12 {
interrupt-map-mask = <f800 0 0 7>;
interrupt-map = <
/* IDSEL 0x13 (PMC Site) */
1800 0 0 1 &RT0 24 0
1800 0 0 2 &RT0 25 0
1800 0 0 3 &RT0 26 0
1800 0 0 4 &RT0 27 0
/* IDSEL 0x14 (USB chip) */
2000 0 0 1 &RT0 27 0
2000 0 0 2 &RT0 27 0
2000 0 0 3 &RT0 27 0
2000 0 0 4 &RT0 27 0
>;
reg = <1000 0 0 0 0>;
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
ranges = <02000000 0 e0000000 e0000000 0 10000000 01000000 0
00000000 fa000000 0 00010000>;
clock-frequency = <1f78a40>;
RT0: router@1180 {
clock-frequency = <0>;
interrupt-controller;
device_type = "pic-router";
#address-cells = <0>;
#interrupt-cells = <2>;
built-in;
big-endian;
interrupts = <17 2>;
interrupt-parent = <&mpic>;
};
};
};
};
};
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next reply other threads:[~2008-02-22 13:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-22 13:33 mahendra varman [this message]
2008-02-22 16:50 ` Doubt in Device tree entry for USB on Powerpc based board Scott Wood
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