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Merge branch 'virtex-for-2.6.25' of git://git.secretlab.ca/git/linux-2.6-virtex into for-2.6.25

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This commit is contained in:
Josh Boyer 2008-01-11 07:02:57 -06:00
commit 98c31c1d6c
5 changed files with 56 additions and 29 deletions
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56
Documentation/powerpc/booting-without-of.txt
View File

@ -2292,7 +2292,7 @@ platforms are moved over to use the flattened-device-tree model.
properties of the device node. In general, device nodes for IP-cores
will take the following form:
(name)@(base-address) {
(name): (generic-name)@(base-address) {
compatible = "xlnx,(ip-core-name)-(HW_VER)"
[, (list of compatible devices), ...];
reg = <(baseaddr) (size)>;
@ -2302,6 +2302,9 @@ platforms are moved over to use the flattened-device-tree model.
xlnx,(parameter2) = <(int-value)>;
};
(generic-name): an open firmware-style name that describes the
generic class of device. Preferably, this is one word, such
as 'serial' or 'ethernet'.
(ip-core-name): the name of the ip block (given after the BEGIN
directive in system.mhs). Should be in lowercase
and all underscores '_' converted to dashes '-'.
@ -2310,9 +2313,9 @@ platforms are moved over to use the flattened-device-tree model.
dropped from the parameter name, the name is converted
to lowercase and all underscore '_' characters are
converted to dashes '-'.
(baseaddr): the C_BASEADDR parameter.
(baseaddr): the baseaddr parameter value (often named C_BASEADDR).
(HW_VER): from the HW_VER parameter.
(size): equals C_HIGHADDR - C_BASEADDR + 1
(size): the address range size (often C_HIGHADDR - C_BASEADDR + 1).
Typically, the compatible list will include the exact IP core version
followed by an older IP core version which implements the same
@ -2342,11 +2345,11 @@ platforms are moved over to use the flattened-device-tree model.
becomes the following device tree node:
opb-uartlite-0@ec100000 {
opb_uartlite_0: serial@ec100000 {
device_type = "serial";
compatible = "xlnx,opb-uartlite-1.00.b";
reg = <ec100000 10000>;
interrupt-parent = <&opb-intc>;
interrupt-parent = <&opb_intc_0>;
interrupts = <1 0>; // got this from the opb_intc parameters
current-speed = <d#115200>; // standard serial device prop
clock-frequency = <d#50000000>; // standard serial device prop
@ -2355,16 +2358,19 @@ platforms are moved over to use the flattened-device-tree model.
xlnx,use-parity = <0>;
};
Some IP cores actually implement 2 or more logical devices. In this case,
the device should still describe the whole IP core with a single node
and add a child node for each logical device. The ranges property can
be used to translate from parent IP-core to the registers of each device.
(Note: this makes the assumption that both logical devices have the same
bus binding. If this is not true, then separate nodes should be used for
each logical device). The 'cell-index' property can be used to enumerate
logical devices within an IP core. For example, the following is the
system.mhs entry for the dual ps2 controller found on the ml403 reference
design.
Some IP cores actually implement 2 or more logical devices. In
this case, the device should still describe the whole IP core with
a single node and add a child node for each logical device. The
ranges property can be used to translate from parent IP-core to the
registers of each device. In addition, the parent node should be
compatible with the bus type 'xlnx,compound', and should contain
#address-cells and #size-cells, as with any other bus. (Note: this
makes the assumption that both logical devices have the same bus
binding. If this is not true, then separate nodes should be used
for each logical device). The 'cell-index' property can be used to
enumerate logical devices within an IP core. For example, the
following is the system.mhs entry for the dual ps2 controller found
on the ml403 reference design.
BEGIN opb_ps2_dual_ref
PARAMETER INSTANCE = opb_ps2_dual_ref_0
@ -2386,21 +2392,24 @@ platforms are moved over to use the flattened-device-tree model.
It would result in the following device tree nodes:
opb_ps2_dual_ref_0@a9000000 {
opb_ps2_dual_ref_0: opb-ps2-dual-ref@a9000000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "xlnx,compound";
ranges = <0 a9000000 2000>;
// If this device had extra parameters, then they would
// go here.
ps2@0 {
compatible = "xlnx,opb-ps2-dual-ref-1.00.a";
reg = <0 40>;
interrupt-parent = <&opb-intc>;
interrupt-parent = <&opb_intc_0>;
interrupts = <3 0>;
cell-index = <0>;
};
ps2@1000 {
compatible = "xlnx,opb-ps2-dual-ref-1.00.a";
reg = <1000 40>;
interrupt-parent = <&opb-intc>;
interrupt-parent = <&opb_intc_0>;
interrupts = <3 0>;
cell-index = <0>;
};
@ -2463,17 +2472,18 @@ platforms are moved over to use the flattened-device-tree model.
Gives this device tree (some properties removed for clarity):
plb-v34-0 {
plb@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "xlnx,plb-v34-1.02.a";
device_type = "ibm,plb";
ranges; // 1:1 translation
plb-bram-if-cntrl-0@ffff0000 {
plb_bram_if_cntrl_0: bram@ffff0000 {
reg = <ffff0000 10000>;
}
opb-v20-0 {
opb@20000000 {
#address-cells = <1>;
#size-cells = <1>;
ranges = <20000000 20000000 20000000
@ -2481,11 +2491,11 @@ platforms are moved over to use the flattened-device-tree model.
80000000 80000000 40000000
c0000000 c0000000 20000000>;
opb-uart16550-0@a0000000 {
opb_uart16550_0: serial@a0000000 {
reg = <a00000000 2000>;
};
opb-intc-0@d1000fc0 {
opb_intc_0: interrupt-controller@d1000fc0 {
reg = <d1000fc0 20>;
};
};

3
arch/powerpc/boot/serial.c
View File

@ -128,7 +128,8 @@ int serial_console_init(void)
rc = cpm_console_init(devp, &serial_cd);
else if (dt_is_compatible(devp, "mpc5200-psc-uart"))
rc = mpc5200_psc_console_init(devp, &serial_cd);
else if (dt_is_compatible(devp, "xilinx,uartlite"))
else if (dt_is_compatible(devp, "xlnx,opb-uartlite-1.00.b") ||
dt_is_compatible(devp, "xlnx,xps-uartlite-1.00.a"))
rc = uartlite_console_init(devp, &serial_cd);
/* Add other serial console driver calls here */

12
arch/powerpc/platforms/40x/virtex.c
View File

@ -15,9 +15,19 @@
#include <asm/time.h>
#include <asm/xilinx_intc.h>
static struct of_device_id xilinx_of_bus_ids[] __initdata = {
{ .compatible = "xlnx,plb-v46-1.00.a", },
{ .compatible = "xlnx,plb-v34-1.01.a", },
{ .compatible = "xlnx,plb-v34-1.02.a", },
{ .compatible = "xlnx,opb-v20-1.10.c", },
{ .compatible = "xlnx,dcr-v29-1.00.a", },
{ .compatible = "xlnx,compound", },
{}
};
static int __init virtex_device_probe(void)
{
of_platform_bus_probe(NULL, NULL, NULL);
of_platform_bus_probe(NULL, xilinx_of_bus_ids, NULL);
return 0;
}

8
arch/powerpc/sysdev/xilinx_intc.c
View File

@ -135,10 +135,16 @@ void __init xilinx_intc_init_tree(void)
struct device_node *np;
/* find top level interrupt controller */
for_each_compatible_node(np, NULL, "xilinx,intc") {
for_each_compatible_node(np, NULL, "xlnx,opb-intc-1.00.c") {
if (!of_get_property(np, "interrupts", NULL))
break;
}
if (!np) {
for_each_compatible_node(np, NULL, "xlnx,xps-intc-1.00.a") {
if (!of_get_property(np, "interrupts", NULL))
break;
}
}
/* xilinx interrupt controller needs to be top level */
BUG_ON(!np);

6
drivers/serial/uartlite.c
View File

@ -539,7 +539,7 @@ static int __devinit ulite_assign(struct device *dev, int id, u32 base, int irq)
*
* @dev: pointer to device structure
*/
static int __devinit ulite_release(struct device *dev)
static int __devexit ulite_release(struct device *dev)
{
struct uart_port *port = dev_get_drvdata(dev);
int rc = 0;
@ -572,14 +572,14 @@ static int __devinit ulite_probe(struct platform_device *pdev)
return ulite_assign(&pdev->dev, pdev->id, res->start, res2->start);
}
static int ulite_remove(struct platform_device *pdev)
static int __devexit ulite_remove(struct platform_device *pdev)
{
return ulite_release(&pdev->dev);
}
static struct platform_driver ulite_platform_driver = {
.probe = ulite_probe,
.remove = ulite_remove,
.remove = __devexit_p(ulite_remove),
.driver = {
.owner = THIS_MODULE,
.name = "uartlite",