I am trying to get a custom mpc8265 board up and running with the latest
git DENX 2.6 kernel and latest git u-boot. However, the kernel is
hanging somewhere in the call to cpm_uart_console_write().
Does anybody else have the cpm2 DTS code working on a 826x board? It
would appear from one of my earlier posts that nobody has used the DTS
stuff with the 826x processors yet.
Using a bdi200 and looking at the _log_buf, the last messages I see are:
00305924 : 79202020 3d203236 362e3636 36363634 y = 266.666664
00305934 : 204d487a 0a3c363e 636c6f63 6b736f75 MHz.<6>clocksou
00305944 : 7263653a 2074696d 65626173 65206d75 rce: timebase mu
00305954 : 6c745b66 30303030 30615d20 73686966 lt[f00000a] shif
00305964 : 745b3232 5d207265 67697374 65726564 t[22] registered
00305974 : 0a3c373e 636c6f63 6b657665 6e743a20 .<7>clockevent:
00305984 : 64656372 656d656e 74657220 6d756c74 decrementer mult
00305994 : 5b343434 5d207368 6966745b 31365d20 [444] shift[16]
003059a4 : 6370755b 305d0a3c 363e636f 6e736f6c cpu[0].<6>consol
003059b4 : 65206861 6e646f76 65723a20 626f6f74 e handover: boot
003059c4 : 205b7564 6267305d 202d3e20 7265616c [udbg0] -> real
003059d4 : 205b7474 7943504d 305d0a3c 363e4465 [ttyCPM0].<6>De
003059e4 : 6e747279 20636163 68652068 61736820 ntry cache hash
003059f4 : 7461626c 6520656e 74726965 733a2031 table entries: 1
00305a04 : 36333834 20286f72 6465723a 20342c20 6384 (order: 4,
00305a14 : 36353533 36206279 74657329 0a000000 65536 bytes)....
Here is the SCC1 snippet from my dts. I will include the entire thing
at the bottom just in case.
ser...@11a00 {
device_type = "serial";
compatible = "fsl,mrdig-scc-uart",
"fsl,cpm2-scc-uart";
reg = <0x11a00 0x20 0x8000 0x100>;
interrupts = <40 8>;
interrupt-parent = <&PIC>;
fsl,cpm-brg = <1>;
fsl,cpm-command = <0x0800000>;
};
And here is the entire dts that I am trying to get up and running on
this board. The one thing I have been trying to work out is how the
interrupts are supposed to be configured, especially the PCI mappings.
However, at this point in the boot process, I don't think the interrupts
are enabled so I don't think that is the problem.
/dts-v1/;
/ {
model = "MRDIG 1.1";
compatible = "fsl,mrdig";
#address-cells = <1>;
#size-cells = <1>;
cpus {
#address-cells = <1>;
#size-cells = <0>;
PowerPC,8...@0 {
device_type = "cpu";
reg = <0x0>;
d-cache-line-size = <32>;
i-cache-line-size = <32>;
d-cache-size = <16384>;
i-cache-size = <16384>;
/* filled by u-boot */
timebase-frequency = <0>;
bus-frequency = <0>;
clock-frequency = <0>;
};
};
memory {
device_type = "memory";
reg = <0x0 0x0>;
};
local...@f0010100 {
compatible = "fsl,mrdig-localbus",
"fsl,pq2-localbus";
#address-cells = <2>;
#size-cells = <1>;
reg = <0xf0010100 0x40>;
/*
* BR0 flash
* BR1 sdram - here or in the /memory
* BR2 PCI
* BR3 Sysace
* BR4 CPLD
* BR5 FPGA
* BR6 FPGA
* BR7 FPGA
* BR8 FPGA
* BR9 FPGA
* BR10 AIS
*/
/* TODO: Do we list all ranges?
* TODO: What are correct size?
* TODO: Add FPGA regions
*/
ranges = <0x0 0x0 0xfe000000 0x2000000
0x1 0x0 0xe6000000 0x8000
0x2 0x0 0xe5000000 0x8000
0x3 0x0 0xe4000000 0x8000>;
/* TODO: I think this is right... */
fl...@fe000000 {
compatible = "cfi-flash";
reg = <0x0 0xfe000000 0x2000000>;
bank-width = <2>;
device-width = <2>;
};
board-cont...@1,0 {
reg = <0x1 0x0 0x20>;
compatible = "fsl,mrdig-bcsr";
};
/* How should this be setup? */
PCI_PIC: interrupt-control...@3,0 {
compatible = "fsl,mrdig-pci-pic",
"fsl,pq2ads-pci-pic";
#interrupt-cells = <1>;
interrupt-controller;
reg = <0x3 0x0 0x8>;
interrupt-parent = <&PIC>;
interrupts = <20 8>;
};
};
p...@f0010800 {
device_type = "pci";
reg = <0xf0010800 0x10c 0xf00101ac 0x8 0xf00101c4 0x8>;
compatible = "fsl,mrdig-pci", "fsl,pq2-pci";
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
clock-frequency = <66666666>;
interrupt-map-mask = <0xf800 0x0 0x0 0x7>;
/* TODO: what is the last field of parent */
interrupt-map = <
/* ourself, no IDSEL - cpci slot 1 */
0x0000 0x0 0x0 0x1 &PCI_PIC 0
0x0000 0x0 0x0 0x2 &PCI_PIC 1
0x0000 0x0 0x0 0x3 &PCI_PIC 2
0x0000 0x0 0x0 0x4 &PCI_PIC 3
/* IDSEL 31 - cpci slot 2 */
0xf800 0x0 0x0 0x4 &PCI_PIC 4
0xf800 0x0 0x0 0x1 &PCI_PIC 5
0xf800 0x0 0x0 0x2 &PCI_PIC 6
0xf800 0x0 0x0 0x3 &PCI_PIC 7
/* IDSEL 30 - cpci slot 3 */
0xf000 0x0 0x0 0x3 &PCI_PIC 8
0xf000 0x0 0x0 0x4 &PCI_PIC 9
0xf000 0x0 0x0 0x1 &PCI_PIC 10
0xf000 0x0 0x0 0x2 &PCI_PIC 11
/* IDSEL 29 - cpci slot 4 */
0xe800 0x0 0x0 0x2 &PCI_PIC 12
0xe800 0x0 0x0 0x3 &PCI_PIC 13
0xe800 0x0 0x0 0x4 &PCI_PIC 14
0xe800 0x0 0x0 0x1 &PCI_PIC 15
/* IDSEL 28 - cpci slot 5 */
0xe000 0x0 0x0 0x1 &PCI_PIC 16
0xe000 0x0 0x0 0x2 &PCI_PIC 17
0xe000 0x0 0x0 0x3 &PCI_PIC 18
0xe000 0x0 0x0 0x4 &PCI_PIC 19
/* IDSEL 27 - cpci slot 6 */
0xd800 0x0 0x0 0x4 &PCI_PIC 20
0xd800 0x0 0x0 0x1 &PCI_PIC 21
0xd800 0x0 0x0 0x2 &PCI_PIC 22
0xd800 0x0 0x0 0x3 &PCI_PIC 23
/* IDSEL 26 - cpci slot 7 */
0xd000 0x0 0x0 0x3 &PCI_PIC 24
0xd000 0x0 0x0 0x4 &PCI_PIC 25
0xd000 0x0 0x0 0x1 &PCI_PIC 26
0xd000 0x0 0x0 0x2 &PCI_PIC 27
/* IDSEL 25 - cpci slot 8 */
0xc800 0x0 0x0 0x3 &PCI_PIC 28
0xc800 0x0 0x0 0x4 &PCI_PIC 29
0xc800 0x0 0x0 0x1 &PCI_PIC 30
0xc800 0x0 0x0 0x2 &PCI_PIC 31>;
interrupt-parent = <&PIC>;
interrupts = <18 8>;
/*
* processor view
* local address pci address
* 0x80000000-0x9fffffff 0x800000000-0x9fffffff pci mem
(prefetch)
* 0xa0000000-0xbfffffff 0xa00000000-0xbfffffff pci mem
* 0xf4000000-0xf7ffffff 0x800000000-0x03ffffff pci io
*
* PCI master view
* 0x00000000-0x1fffffff 0x000000000-0x1fffffff local phys mem
*/
ranges = <0x42000000 0x0 0x80000000 0x80000000 0x0 0x20000000
0x02000000 0x0 0xa0000000 0xa0000000 0x0 0x20000000
0x01000000 0x0 0x00000000 0xf4000000 0x0 0x04000000>;
};
s...@f0000000 {
#address-cells = <1>;
#size-cells = <1>;
device_type = "soc";
compatible = "fsl,mrdig", "fsl,pq2-soc";
ranges = <0x0 0xf0000000 0x53000>;
// Temporary -- will go away once kernel uses ranges for
get_immrbase().
reg = <0xf0000000 0x53000>;
c...@119c0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "fsl,mrdig-cpm", "fsl,cpm2";
reg = <0x119c0 0x30>;
ranges;
mu...@0 {
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x0 0x0 0x10000>;
d...@0 {
compatible = "fsl,cpm-muram-data";
reg = <0x0 0x2000 0x9800 0x800>;
};
};
b...@119f0 {
compatible = "fsl,mrdig-brg",
"fsl,cpm2-brg",
"fsl,cpm-brg";
reg = <0x119f0 0x10 0x115f0 0x10>;
};
/* TODO: I believe the SCCs are setup correctly */
/* SCC1 */
ser...@11a00 {
device_type = "serial";
compatible = "fsl,mrdig-scc-uart",
"fsl,cpm2-scc-uart";
reg = <0x11a00 0x20 0x8000 0x100>;
interrupts = <40 8>;
interrupt-parent = <&PIC>;
fsl,cpm-brg = <1>;
fsl,cpm-command = <0x0800000>;
};
/* SCC2 */
ser...@11a20 {
device_type = "serial";
compatible = "fsl,mrdig-scc-uart",
"fsl,cpm2-scc-uart";
reg = <0x11a20 0x20 0x8000 0x100>;
interrupts = <41 8>;
interrupt-parent = <&PIC>;
fsl,cpm-brg = <2>;
fsl,cpm-command = <0x4a00000>;
};
/* SCC3 - set this up now or later with SDLC? */
ser...@11a40 {
device_type = "serial";
compatible = "fsl,mrdig-scc-uart",
"fsl,cpm2-scc-uart";
reg = <0x11a40 0x20 0x8000 0x100>;
interrupts = <42 8>;
interrupt-parent = <&PIC>;
fsl,cpm-brg = <3>;
fsl,cpm-command = <0x8c00000>;
};
/* SCC4 */
ser...@11a60 {
device_type = "serial";
compatible = "fsl,mrdig-scc-uart",
"fsl,cpm2-scc-uart";
reg = <0x11a60 0x20 0x8300 0x100>;
interrupts = <43 8>;
interrupt-parent = <&PIC>;
fsl,cpm-brg = <4>;
fsl,cpm-command = <0xce00000>;
};
/* TODO: Figure this out for mrdig */
m...@10d40 {
device_type = "mdio";
compatible = "fsl,mrdig-mdio-bitbang",
"fsl,mrdig-mdio-bitbang",
"fsl,cpm2-mdio-bitbang";
reg = <0x10d40 0x14>;
#address-cells = <1>;
#size-cells = <0>;
fsl,mdio-pin = <18>;
fsl,mdc-pin = <19>;
PHY0: ethernet-...@0 {
interrupt-parent = <&PIC>;
interrupts = <23 8>;
reg = <0x0>;
device_type = "ethernet-phy";
};
PHY1: ethernet-...@1 {
interrupt-parent = <&PIC>;
interrupts = <23 8>;
reg = <0x3>;
device_type = "ethernet-phy";
};
/* TODO: reg and interrupt? */
PHY2: ethernet-...@2 {
interrupt-parent = <&PIC>;
interrupts = <23 8>;
reg = <0x3>;
device_type = "ethernet-phy";
};
};
/* FCC1 */
ether...@11300 {
device_type = "network";
compatible = "fsl,mrdig-fcc-enet",
"fsl,cpm2-fcc-enet";
reg = <0x11300 0x20 0x8400 0x100 0x11390 0x1>;
local-mac-address = [ 00 00 00 00 00 00 ];
interrupts = <32 8>;
interrupt-parent = <&PIC>;
phy-handle = <&PHY0>;
linux,network-index = <0>;
fsl,cpm-command = <0x12000300>;
};
/* FCC2 */
ether...@11320 {
device_type = "network";
compatible = "fsl,mrdig-fcc-enet",
"fsl,cpm2-fcc-enet";
reg = <0x11320 0x20 0x8500 0x100 0x113b0 0x1>;
local-mac-address = [ 00 00 00 00 00 00 ];
interrupts = <33 8>;
interrupt-parent = <&PIC>;
phy-handle = <&PHY1>;
linux,network-index = <1>;
fsl,cpm-command = <0x16200300>;
};
/* FCC3 */
ether...@11340 {
device_type = "network";
compatible = "fsl,mrdig-fcc-enet",
"fsl,cpm2-fcc-enet";
reg = <0x11340 0x20 0x8600 0x100 0x113d0 0x1>;
local-mac-address = [ 00 00 00 00 00 00 ];
interrupts = <34 8>;
interrupt-parent = <&PIC>;
phy-handle = <&PHY2>;
linux,network-index = <1>;
fsl,cpm-command = <0x1ac00300>;
};
i...@11860 {
compatible = "fsl,mrdig-i2c",
"fsl,cpm2-i2c";
reg = <0x11860 0x20 0x8afc 0x2>;
interrupts = <1 8>;
interrupt-parent = <&PIC>;
fsl,cpm-command = <0x29600000>;
#address-cells = <1>;
#size-cells = <0>;
};
};
/* TODO: What to do for us? */
PIC: interrupt-control...@10c00 {
#interrupt-cells = <2>;
interrupt-controller;
reg = <0x10c00 0x80>;
compatible = "fsl,mrdig-pic", "fsl,cpm2-pic";
};
};
/* TODO: SCC1? */
chosen {
linux,stdout-path = "/soc/cpm/ser...@11a00";
};
};
--
Jeff Angielski
The PTR Group
www.theptrgroup.com
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