Re: Changing ibm4xx device tree.

[Shigeyuki Fukushima <shige%netbsd.org@localhost>]

Izumi Tsutsui wrote:
> Well, I guess Jason just said not to attach plb at cpu.
> Anyway, we should remember that Jason is an important key developer
> of whole NetBSD ;-)

I'm sorry.

> IMO, it's better to summarize how many possible 4xx CPU variants
> should be handled in that layer, and then design structure for
> each of them before implementing it. At least there is another
> port for PPC405D5Xn core:
> http://mail-index.netbsd.org/port-powerpc/2006/04/26/0000.html

I don't know the details of PPC405Core.
On Old IBM product briefs, there are 3-type cores, 405A3/405B3/405D4.
I don't know PPC440Cores.
And also I don't know which processors have what kind of cores.

Here is a list of 4xx Embedded Processors:

+-------+-------------------------------------------------------+
| CPU   | Devices                                               |
+-------+---------------+---------------------------------------+
|       | 405D4? Core   | DCU  8KB/ICU 16KB/DCR/UICx1           |
|405CR  | PLB3          | OPB/SDRAM/EBC/CodePack                |
|       | OPB           | GPIOx1/IICx1/UARTx2                   |
+-------+---------------+---------------------------------------+
|       | 405B3? Core   | DCU 16KB/ICU 16KB/DCR/OCM/UICx1       |
|405EP  | PLB3          | OPB/SDRAM/EBC/PCI 2.2/MAL             |
|       | OPB           | GPIOx1/IICx1/UARTx2/EMACx2/GPT        |
+-------+---------------+---------------------------------------+
|       | 405D4? Core   | DCU  8KB/ICU 16KB/DCR/OCM/UICx1       |
|405GP  | PLB3          | OPB/SDRAM/EBC/PCI 2.2/MAL/CodePack    |
|       | OPB           | GPIOx1/IICx1/UARTx2/EMACx1            |
+-------+---------------+---------------------------------------+
|       | 405B3? Core   | DCU 16KB/ICU 16KB/DCR/OCM/UIC         |
|405GPr | PLB3          | OPB/SDRAM/EBC/PCI 2.2/MAL/CodePack    |
|       | OPB           | GPIOx1/IICx1/UARTx2/EMACx1            |
+-------+---------------+---------------------------------------+
|       | 405D4? Core   | DCU 16KB/ICU 16KB/DCR/UICx2           |
|405H   | PLB3          | OPB/SDRAM/EBC/PCI 2.2/MALx3           |
|       | OPB           | GPIOx2/IICx1/UARTx2/EMACx4            |
+-------+---------------+---------------------------------------+
|       |               |                                       |
|405L   |               |                                       |
|       |               |                                       |
+-------+---------------+---------------------------------------+
|       | ? Core        | DCU 32KB/ICU 32KB/DCR/UIC             |
|440GP  | PLB4          | OPB/SDRAM/SRAM/PCI-X/MAL              |
|       | OPB           | GPIOx1/IICx2/UARTx2/EMACx2/GPT/EPC    |
+-------+---------------+---------------------------------------+
|       | ? Core        | DCU 32KB/ICU 32KB/L2Ctrl/DCR/UIC      |
|440GX  | PLB4          | OPB/SDRAM/SRAM/PCI-X/MAL/I2O          |
|       | OPB           | GPIOx1/IICx2/UARTx2/EMACx2/GPT/EPC    |
+-------+---------------+---------------------------------------+
|       | ? Core        | DCU 32KB/ICU 32KB/DCR/UIC/FPU         |
|440EP  | PLB4          | OPB1/SDRAM/PLB-PLB                    |
|       | PLB3          | OPB0/EPC/PCI 2.2/MAL                  |
|       | OPB0          | GPIOx1/IICx2/UARTx4/EMACx2/GPT        |
|       |               | /SPI/BSC/USB1.0                       |
|       | OPB1          | USB2.0                                |
+-------+---------------+---------------------------------------+
|       | ? Core        | DCU 32KB/ICU 32KB/DCR/UIC/FPU         |
|440EPx | PLB4          | OPB1/SDRAM/PLB-PLB/OCM/MAL            |
|       |               | /Kasumi Engine/TruboSecurityEngine    |
|       | PLB3          | OPB0/EPC/PCI 2.2                      |
|       | OPB0          | GPIOx1/IICx2/UARTx4/EMACx2/GPT        |
|       |               | /SPI/BSC                              |
|       | OPB1          | USB2.0                                |
+-------+---------------+---------------------------------------+
|       | ? Core        | DCU 32KB/ICU 32KB/DCR/UIC             |
|440GR  | PLB4          | SDRAM/PLB-PLB                         |
|       | PLB3          | OPB/EPC/PCI 2.2/MAL                   |
|       | OPB           | GPIOx1/IICx2/UARTx4/EMACx2/GPT/SPI/BSC|
+-------+---------------+---------------------------------------+
|       | ? Core        | DCU 32KB/ICU 32KB/DCR/UIC             |
|440GRx | PLB4          | SDRAM/PLB-PLB/OCM/MAL                 |
|       |               | /Kasumi Engine/TruboSecurityEngine    |
|       | PLB3          | OPB/EPC/PCI 2.2                       |
|       | OPB           | GPIOx1/IICx2/UARTx4/EMACx2/GPT/SPI/BSC|
+-------+---------------+---------------------------------------+
|       | ? Core        | DCU 32KB/ICU 32KB/DCR/UIC             |
|440SP  | PLB4          | OPB/SDRAM/PCI-X/MAL/I2O               |
|       | OPB           | GPIOx1/IICx2/UARTx3/EMACx1/GPT/EBC    |
+-------+---------------+---------------------------------------+
|       | ? Core        | DCU 32KB/ICU 32KB/DCR/UIC             |
|440SPe | PLB4          | OPB/SDRAM/PCI-X/PCI-ExpressMAL/I2O    |
|       | OPB           | GPIOx1/IICx2/UARTx3/EMACx1/GPT/EBC    |
+-------+---------------+---------------------------------------+

-- 
Kind Regards,
--- shige
Shigeyuki Fukushima <shige@{FreeBSD,jp.FreeBSD,NetBSD}.org>