Hi,
We have a board closely based on the A&M asp8347 with the addition of a
promise technologies 20275 ATA controller.
Starting with the ASP dts file I have added the following:
pci0: [EMAIL PROTECTED] {
cell-index = <1>;
interrupt-map-mask = <0xf800 0x0 0x0 0x7>;
interrupt-map = <
/* IDSEL 0x11 */
0x8800 0x0 0x0 0x1 &ipic 19 0x8
0x8800 0x0 0x0 0x2 &ipic 19 0x8
0x8800 0x0 0x0 0x3 &ipic 19 0x8
0x8800 0x0 0x0 0x4 &ipic 19 0x8>;
interrupt-parent = <&ipic>;
interrupts = <0x42 0x8>;
bus-range = <0 0>;
ranges = <0x02000000 0x0 0xc0000000 0xc0000000 0x0 0x10000000
0x42000000 0x0 0xb0000000 0xb0000000 0x0 0x00100000
0x01000000 0x0 0x00000000 0xb8000000 0x0 0x00100000>;
clock-frequency = <33333333>;
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
reg = <0xff008500 0x100>;
compatible = "fsl,mpc8349-pci";
device_type = "pci";
};
I have based the numbers around what I found in our original 2.6.20 ppc
port which works fine.
The following is from the ppc tree platform specific header for our board:
----------------------------------------------------------------------------------
#define _IRQ1 MPC83xx_IRQ_EXT3
#define _IRQ2 MPC83xx_IRQ_EXT4
#define PCI_IRQ_INFO() \
static char pci_irq_table[][4] = \
/* \
* PCI IDSEL/INTPIN->INTLINE \
* A B C D \
*/ \
{ \
{ _IRQ1, _IRQ1, _IRQ1, _IRQ1 }, /* IDSEL 11 = IDE disk
*/ \
{ 0, 0, 0, 0 }, /* IDSEL 12
*/ \
{ _IRQ2, _IRQ2, _IRQ2, _IRQ2 }, /* IDSEL 13 = USB controller
*/ \
}; \
\
const long min_idsel = 11, max_idsel = 13, irqs_per_slot = 4;
#define EXT_IRQ_SENSES() \
u8 senses[8] = { \
0, /* EXT 0 */ \
0, /* EXT 1 */ \
0, /* EXT 2 */ \
IRQ_SENSE_LEVEL, /* EXT 3 = PCI.11 */ \
IRQ_SENSE_LEVEL, /* EXT 4 = PCI.13 */ \
IRQ_SENSE_LEVEL, /* EXT 5 = JCB */ \
0, /* EXT 6 */ \
0, /* EXT 7 */ \
};
#endif
// Note: these need to match how RedBoot has set up the hardware.
// In particular, the PCILAWRn/PCILBAWRn registers (PCI address window)
#define MPC83xx_PCI1_LOWER_IO 0x00000000
#define MPC83xx_PCI1_UPPER_IO 0x000FFFFF
#define MPC83xx_PCI1_IO_BASE 0xB8000000
#define MPC83xx_PCI1_IO_SIZE 0x00100000
#define MPC83xx_PCI1_LOWER_MEM 0xC0000000
#define MPC83xx_PCI1_UPPER_MEM 0xCFFFFFFF
#define MPC83xx_PCI1_MEM_OFFSET 0x00000000
----------------------------------------------------------------------------------
The driver we are using is pata_pdc2027x. Everything seems to work OK,
except that every time we read from the hardware, we get all f's.
Specifically, pdc_detect_pll_input_clock() fails, since the clock
frequency appears to be 0Hz.
On boot I get the following:
Found MPC83xx PCI host bridge at 0x00000000ff008500. Firmware bus
number: 0->0
PCI host bridge /[EMAIL PROTECTED] (primary) ranges:
MEM 0x00000000c0000000..0x00000000cfffffff -> 0x00000000c0000000
MEM 0x00000000b0000000..0x00000000b00fffff -> 0x00000000b0000000 Prefetch
IO 0x00000000b8000000..0x00000000b80fffff -> 0x0000000000000000
Top of RAM: 0x8000000, Total RAM: 0x8000000
Memory hole size: 0MB
Zone PFN ranges:
DMA 0x00000000 -> 0x00008000
Normal 0x00008000 -> 0x00008000
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
0: 0x00000000 -> 0x00008000
On node 0 totalpages: 32768
free_area_init_node: node 0, pgdat c032f8cc, node_mem_map c040c000
DMA zone: 32512 pages, LIFO batch:7
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512
Kernel command line: root=/dev/nfs
nfsroot=192.168.111.41:/tftpboot/powerpc_q2_
and on trying to mount a CF card I get this:
Mapping pci region - start: c8100000, length: 16384
pata_pdc2027x 0000:00:0b.0: PLL input clock 0 kHz
pata_pdc2027x: Invalid PLL input clock 0kHz, give up!
scsi0 : pata_pdc2027x
scsi1 : pata_pdc2027x
ata1: PATA max UDMA/133 mmio [EMAIL PROTECTED] cmd 0xc81017c0 irq 16
ata2: PATA max UDMA/133 mmio [EMAIL PROTECTED] cmd 0xc81015c0 irq 16
pata_pdc2027x: 40-conductor cable detected on port 0
pata_pdc2027x: 40-conductor cable detected on port 1
Could not mount CF card - mountStatus = -1
Any ideas?
Thanks,
Richard.
_______________________________________________
Linuxppc-dev mailing list
[email protected]
https://ozlabs.org/mailman/listinfo/linuxppc-dev
