-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
yaml --- r: 56288 b: refs/heads/master c: 52d3aff h: refs/heads/master v: v3
- Loading branch information
Dale Farnsworth
authored and
Paul Mackerras
committed
May 12, 2007
1 parent
3299f03
commit 3c0bfbf
Showing
4 changed files
with
226 additions
and
2 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,2 +1,2 @@ | ||
--- | ||
refs/heads/master: e44b8941908ec9ccf03b52713c9e7d3471bada8c | ||
refs/heads/master: 52d3aff903171af13b56c5a4d6fb828461406c65 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,221 @@ | ||
/* | ||
* Platform device setup for Marvell mv64360/mv64460 host bridges (Discovery) | ||
* | ||
* Author: Dale Farnsworth <dale@farnsworth.org> | ||
* | ||
* 2007 (c) MontaVista, Software, Inc. This file is licensed under | ||
* the terms of the GNU General Public License version 2. This program | ||
* is licensed "as is" without any warranty of any kind, whether express | ||
* or implied. | ||
*/ | ||
|
||
#include <linux/stddef.h> | ||
#include <linux/kernel.h> | ||
#include <linux/init.h> | ||
#include <linux/mv643xx.h> | ||
#include <linux/platform_device.h> | ||
|
||
#include <asm/prom.h> | ||
|
||
/* | ||
* These functions provide the necessary setup for the mv64x60 drivers. | ||
* These drivers are unusual in that they work on both the MIPS and PowerPC | ||
* architectures. Because of that, the drivers do not support the normal | ||
* PowerPC of_platform_bus_type. They support platform_bus_type instead. | ||
*/ | ||
|
||
/* | ||
* Create MPSC platform devices | ||
*/ | ||
static int __init mv64x60_mpsc_register_shared_pdev(struct device_node *np) | ||
{ | ||
struct platform_device *pdev; | ||
struct resource r[2]; | ||
struct mpsc_shared_pdata pdata; | ||
const phandle *ph; | ||
struct device_node *mpscrouting, *mpscintr; | ||
int err; | ||
|
||
ph = of_get_property(np, "mpscrouting", NULL); | ||
mpscrouting = of_find_node_by_phandle(*ph); | ||
if (!mpscrouting) | ||
return -ENODEV; | ||
|
||
err = of_address_to_resource(mpscrouting, 0, &r[0]); | ||
of_node_put(mpscrouting); | ||
if (err) | ||
return err; | ||
|
||
ph = of_get_property(np, "mpscintr", NULL); | ||
mpscintr = of_find_node_by_phandle(*ph); | ||
if (!mpscintr) | ||
return -ENODEV; | ||
|
||
err = of_address_to_resource(mpscintr, 0, &r[1]); | ||
of_node_put(mpscintr); | ||
if (err) | ||
return err; | ||
|
||
memset(&pdata, 0, sizeof(pdata)); | ||
|
||
pdev = platform_device_alloc(MPSC_SHARED_NAME, 0); | ||
if (!pdev) | ||
return -ENOMEM; | ||
|
||
err = platform_device_add_resources(pdev, r, 2); | ||
if (err) | ||
goto error; | ||
|
||
err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); | ||
if (err) | ||
goto error; | ||
|
||
err = platform_device_add(pdev); | ||
if (err) | ||
goto error; | ||
|
||
return 0; | ||
|
||
error: | ||
platform_device_put(pdev); | ||
return err; | ||
} | ||
|
||
|
||
static int __init mv64x60_mpsc_device_setup(struct device_node *np, int id) | ||
{ | ||
struct resource r[5]; | ||
struct mpsc_pdata pdata; | ||
struct platform_device *pdev; | ||
const unsigned int *prop; | ||
const phandle *ph; | ||
struct device_node *sdma, *brg; | ||
int err; | ||
int port_number; | ||
|
||
/* only register the shared platform device the first time through */ | ||
if (id == 0 && (err = mv64x60_mpsc_register_shared_pdev(np))) | ||
return err; | ||
|
||
memset(r, 0, sizeof(r)); | ||
|
||
err = of_address_to_resource(np, 0, &r[0]); | ||
if (err) | ||
return err; | ||
|
||
of_irq_to_resource(np, 0, &r[4]); | ||
|
||
ph = of_get_property(np, "sdma", NULL); | ||
sdma = of_find_node_by_phandle(*ph); | ||
if (!sdma) | ||
return -ENODEV; | ||
|
||
of_irq_to_resource(sdma, 0, &r[3]); | ||
err = of_address_to_resource(sdma, 0, &r[1]); | ||
of_node_put(sdma); | ||
if (err) | ||
return err; | ||
|
||
ph = of_get_property(np, "brg", NULL); | ||
brg = of_find_node_by_phandle(*ph); | ||
if (!brg) | ||
return -ENODEV; | ||
|
||
err = of_address_to_resource(brg, 0, &r[2]); | ||
of_node_put(brg); | ||
if (err) | ||
return err; | ||
|
||
prop = of_get_property(np, "block-index", NULL); | ||
if (!prop) | ||
return -ENODEV; | ||
port_number = *(int *)prop; | ||
|
||
memset(&pdata, 0, sizeof(pdata)); | ||
|
||
pdata.cache_mgmt = 1; /* All current revs need this set */ | ||
|
||
prop = of_get_property(np, "max_idle", NULL); | ||
if (prop) | ||
pdata.max_idle = *prop; | ||
|
||
prop = of_get_property(brg, "current-speed", NULL); | ||
if (prop) | ||
pdata.default_baud = *prop; | ||
|
||
/* Default is 8 bits, no parity, no flow control */ | ||
pdata.default_bits = 8; | ||
pdata.default_parity = 'n'; | ||
pdata.default_flow = 'n'; | ||
|
||
prop = of_get_property(np, "chr_1", NULL); | ||
if (prop) | ||
pdata.chr_1_val = *prop; | ||
|
||
prop = of_get_property(np, "chr_2", NULL); | ||
if (prop) | ||
pdata.chr_2_val = *prop; | ||
|
||
prop = of_get_property(np, "chr_10", NULL); | ||
if (prop) | ||
pdata.chr_10_val = *prop; | ||
|
||
prop = of_get_property(np, "mpcr", NULL); | ||
if (prop) | ||
pdata.mpcr_val = *prop; | ||
|
||
prop = of_get_property(brg, "bcr", NULL); | ||
if (prop) | ||
pdata.bcr_val = *prop; | ||
|
||
pdata.brg_can_tune = 1; /* All current revs need this set */ | ||
|
||
prop = of_get_property(brg, "clock-src", NULL); | ||
if (prop) | ||
pdata.brg_clk_src = *prop; | ||
|
||
prop = of_get_property(brg, "clock-frequency", NULL); | ||
if (prop) | ||
pdata.brg_clk_freq = *prop; | ||
|
||
pdev = platform_device_alloc(MPSC_CTLR_NAME, port_number); | ||
if (!pdev) | ||
return -ENOMEM; | ||
|
||
err = platform_device_add_resources(pdev, r, 5); | ||
if (err) | ||
goto error; | ||
|
||
err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); | ||
if (err) | ||
goto error; | ||
|
||
err = platform_device_add(pdev); | ||
if (err) | ||
goto error; | ||
|
||
return 0; | ||
|
||
error: | ||
platform_device_put(pdev); | ||
return err; | ||
} | ||
|
||
static int __init mv64x60_device_setup(void) | ||
{ | ||
struct device_node *np = NULL; | ||
int id; | ||
int err; | ||
|
||
for (id = 0; | ||
(np = of_find_compatible_node(np, "serial", "marvell,mpsc")); id++) | ||
if ((err = mv64x60_mpsc_device_setup(np, id))) | ||
goto error; | ||
|
||
return 0; | ||
|
||
error: | ||
of_node_put(np); | ||
return err; | ||
} | ||
arch_initcall(mv64x60_device_setup); |