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r: 44802
b: refs/heads/master
c: fb34d20
h: refs/heads/master
v: v3
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Linus Torvalds committed Dec 21, 2006
1 parent 76650d0 commit 58041ee
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: c3052905033f8785bcb2c71d5ce40b84259e3a80
refs/heads/master: fb34d203d0b5ac1b8284973eb0db3fdff101fc5e
19 changes: 11 additions & 8 deletions trunk/Documentation/powerpc/booting-without-of.txt
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Expand Up @@ -1703,29 +1703,32 @@ platforms are moved over to use the flattened-device-tree model.
Required properties:

- device_type : has to be "rom"
- compatible : Should specify what this ROM device is compatible with
(i.e. "onenand"). Currently, this is most likely to be "direct-mapped"
(which corresponds to the MTD physmap mapping driver).
- regs : Offset and length of the register set (or memory mapping) for
- compatible : Should specify what this flash device is compatible with.
Currently, this is most likely to be "direct-mapped" (which
corresponds to the MTD physmap mapping driver).
- reg : Offset and length of the register set (or memory mapping) for
the device.
- bank-width : Width of the flash data bus in bytes. Required
for the NOR flashes (compatible == "direct-mapped" and others) ONLY.

Recommended properties :

- bank-width : Width of the flash data bus in bytes. Required
for the NOR flashes (compatible == "direct-mapped" and others) ONLY.
- partitions : Several pairs of 32-bit values where the first value is
partition's offset from the start of the device and the second one is
partition size in bytes with LSB used to signify a read only
partititon (so, the parition size should always be an even number).
partition (so, the parition size should always be an even number).
- partition-names : The list of concatenated zero terminated strings
representing the partition names.
- probe-type : The type of probe which should be done for the chip
(JEDEC vs CFI actually). Valid ONLY for NOR flashes.

Example:

flash@ff000000 {
device_type = "rom";
compatible = "direct-mapped";
regs = <ff000000 01000000>;
probe-type = "CFI";
reg = <ff000000 01000000>;
bank-width = <4>;
partitions = <00000000 00f80000
00f80000 00080001>;
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Expand Up @@ -927,7 +927,7 @@
<informalexample>
<programlisting>
<![CDATA[
struct mychip *chip = (struct mychip *)card->private_data;
struct mychip *chip = card->private_data;
]]>
</programlisting>
</informalexample>
Expand Down Expand Up @@ -1095,7 +1095,7 @@

/* release the irq */
if (chip->irq >= 0)
free_irq(chip->irq, (void *)chip);
free_irq(chip->irq, chip);
/* release the i/o ports & memory */
pci_release_regions(chip->pci);
/* disable the PCI entry */
Expand Down Expand Up @@ -1148,7 +1148,7 @@
}
chip->port = pci_resource_start(pci, 0);
if (request_irq(pci->irq, snd_mychip_interrupt,
IRQF_DISABLED|IRQF_SHARED, "My Chip", chip)) {
IRQF_SHARED, "My Chip", chip)) {
printk(KERN_ERR "cannot grab irq %d\n", pci->irq);
snd_mychip_free(chip);
return -EBUSY;
Expand Down Expand Up @@ -1387,7 +1387,7 @@
<programlisting>
<![CDATA[
if (chip->irq >= 0)
free_irq(chip->irq, (void *)chip);
free_irq(chip->irq, chip);
]]>
</programlisting>
</informalexample>
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