mirror of https://gitee.com/openkylin/linux.git
505 lines
10 KiB
C
505 lines
10 KiB
C
/*
|
|
* 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/console.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;
|
|
}
|
|
|
|
/*
|
|
* Create mv64x60_eth platform devices
|
|
*/
|
|
static int __init eth_register_shared_pdev(struct device_node *np)
|
|
{
|
|
struct platform_device *pdev;
|
|
struct resource r[1];
|
|
int err;
|
|
|
|
np = of_get_parent(np);
|
|
if (!np)
|
|
return -ENODEV;
|
|
|
|
err = of_address_to_resource(np, 0, &r[0]);
|
|
of_node_put(np);
|
|
if (err)
|
|
return err;
|
|
|
|
pdev = platform_device_register_simple(MV643XX_ETH_SHARED_NAME, 0,
|
|
r, 1);
|
|
if (IS_ERR(pdev))
|
|
return PTR_ERR(pdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __init mv64x60_eth_device_setup(struct device_node *np, int id)
|
|
{
|
|
struct resource r[1];
|
|
struct mv643xx_eth_platform_data pdata;
|
|
struct platform_device *pdev;
|
|
struct device_node *phy;
|
|
const u8 *mac_addr;
|
|
const int *prop;
|
|
const phandle *ph;
|
|
int err;
|
|
|
|
/* only register the shared platform device the first time through */
|
|
if (id == 0 && (err = eth_register_shared_pdev(np)))
|
|
return err;
|
|
|
|
memset(r, 0, sizeof(r));
|
|
of_irq_to_resource(np, 0, &r[0]);
|
|
|
|
memset(&pdata, 0, sizeof(pdata));
|
|
|
|
prop = of_get_property(np, "block-index", NULL);
|
|
if (!prop)
|
|
return -ENODEV;
|
|
pdata.port_number = *prop;
|
|
|
|
mac_addr = of_get_mac_address(np);
|
|
if (mac_addr)
|
|
memcpy(pdata.mac_addr, mac_addr, 6);
|
|
|
|
prop = of_get_property(np, "speed", NULL);
|
|
if (prop)
|
|
pdata.speed = *prop;
|
|
|
|
prop = of_get_property(np, "tx_queue_size", NULL);
|
|
if (prop)
|
|
pdata.tx_queue_size = *prop;
|
|
|
|
prop = of_get_property(np, "rx_queue_size", NULL);
|
|
if (prop)
|
|
pdata.rx_queue_size = *prop;
|
|
|
|
prop = of_get_property(np, "tx_sram_addr", NULL);
|
|
if (prop)
|
|
pdata.tx_sram_addr = *prop;
|
|
|
|
prop = of_get_property(np, "tx_sram_size", NULL);
|
|
if (prop)
|
|
pdata.tx_sram_size = *prop;
|
|
|
|
prop = of_get_property(np, "rx_sram_addr", NULL);
|
|
if (prop)
|
|
pdata.rx_sram_addr = *prop;
|
|
|
|
prop = of_get_property(np, "rx_sram_size", NULL);
|
|
if (prop)
|
|
pdata.rx_sram_size = *prop;
|
|
|
|
ph = of_get_property(np, "phy", NULL);
|
|
if (!ph)
|
|
return -ENODEV;
|
|
|
|
phy = of_find_node_by_phandle(*ph);
|
|
if (phy == NULL)
|
|
return -ENODEV;
|
|
|
|
prop = of_get_property(phy, "reg", NULL);
|
|
if (prop) {
|
|
pdata.force_phy_addr = 1;
|
|
pdata.phy_addr = *prop;
|
|
}
|
|
|
|
of_node_put(phy);
|
|
|
|
pdev = platform_device_alloc(MV643XX_ETH_NAME, pdata.port_number);
|
|
if (!pdev)
|
|
return -ENOMEM;
|
|
|
|
err = platform_device_add_resources(pdev, r, 1);
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* Create mv64x60_i2c platform devices
|
|
*/
|
|
static int __init mv64x60_i2c_device_setup(struct device_node *np, int id)
|
|
{
|
|
struct resource r[2];
|
|
struct platform_device *pdev;
|
|
struct mv64xxx_i2c_pdata pdata;
|
|
const unsigned int *prop;
|
|
int 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[1]);
|
|
|
|
memset(&pdata, 0, sizeof(pdata));
|
|
|
|
prop = of_get_property(np, "freq_m", NULL);
|
|
if (!prop)
|
|
return -ENODEV;
|
|
pdata.freq_m = *prop;
|
|
|
|
prop = of_get_property(np, "freq_n", NULL);
|
|
if (!prop)
|
|
return -ENODEV;
|
|
pdata.freq_n = *prop;
|
|
|
|
prop = of_get_property(np, "timeout", NULL);
|
|
if (prop)
|
|
pdata.timeout = *prop;
|
|
else
|
|
pdata.timeout = 1000; /* 1 second */
|
|
|
|
pdev = platform_device_alloc(MV64XXX_I2C_CTLR_NAME, id);
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* Create mv64x60_wdt platform devices
|
|
*/
|
|
static int __init mv64x60_wdt_device_setup(struct device_node *np, int id)
|
|
{
|
|
struct resource r;
|
|
struct platform_device *pdev;
|
|
struct mv64x60_wdt_pdata pdata;
|
|
const unsigned int *prop;
|
|
int err;
|
|
|
|
err = of_address_to_resource(np, 0, &r);
|
|
if (err)
|
|
return err;
|
|
|
|
memset(&pdata, 0, sizeof(pdata));
|
|
|
|
prop = of_get_property(np, "timeout", NULL);
|
|
if (!prop)
|
|
return -ENODEV;
|
|
pdata.timeout = *prop;
|
|
|
|
np = of_get_parent(np);
|
|
if (!np)
|
|
return -ENODEV;
|
|
|
|
prop = of_get_property(np, "clock-frequency", NULL);
|
|
of_node_put(np);
|
|
if (!prop)
|
|
return -ENODEV;
|
|
pdata.bus_clk = *prop / 1000000; /* wdt driver wants freq in MHz */
|
|
|
|
pdev = platform_device_alloc(MV64x60_WDT_NAME, id);
|
|
if (!pdev)
|
|
return -ENOMEM;
|
|
|
|
err = platform_device_add_resources(pdev, &r, 1);
|
|
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;
|
|
|
|
id = 0;
|
|
for_each_compatible_node(np, "serial", "marvell,mpsc")
|
|
if ((err = mv64x60_mpsc_device_setup(np, id++)))
|
|
goto error;
|
|
|
|
id = 0;
|
|
for_each_compatible_node(np, "network", "marvell,mv64x60-eth")
|
|
if ((err = mv64x60_eth_device_setup(np, id++)))
|
|
goto error;
|
|
|
|
id = 0;
|
|
for_each_compatible_node(np, "i2c", "marvell,mv64x60-i2c")
|
|
if ((err = mv64x60_i2c_device_setup(np, id++)))
|
|
goto error;
|
|
|
|
/* support up to one watchdog timer */
|
|
np = of_find_compatible_node(np, NULL, "marvell,mv64x60-wdt");
|
|
if (np) {
|
|
if ((err = mv64x60_wdt_device_setup(np, id)))
|
|
goto error;
|
|
of_node_put(np);
|
|
}
|
|
|
|
return 0;
|
|
|
|
error:
|
|
of_node_put(np);
|
|
return err;
|
|
}
|
|
arch_initcall(mv64x60_device_setup);
|
|
|
|
static int __init mv64x60_add_mpsc_console(void)
|
|
{
|
|
struct device_node *np = NULL;
|
|
const char *prop;
|
|
|
|
prop = of_get_property(of_chosen, "linux,stdout-path", NULL);
|
|
if (prop == NULL)
|
|
goto not_mpsc;
|
|
|
|
np = of_find_node_by_path(prop);
|
|
if (!np)
|
|
goto not_mpsc;
|
|
|
|
if (!of_device_is_compatible(np, "marvell,mpsc"))
|
|
goto not_mpsc;
|
|
|
|
prop = of_get_property(np, "block-index", NULL);
|
|
if (!prop)
|
|
goto not_mpsc;
|
|
|
|
add_preferred_console("ttyMM", *(int *)prop, NULL);
|
|
|
|
not_mpsc:
|
|
return 0;
|
|
}
|
|
console_initcall(mv64x60_add_mpsc_console);
|