mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-29 22:14:41 +08:00
1f8eca1293
On apsh4ad0a provide a dummy regulator for the smsc911x driver. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
136 lines
3.3 KiB
C
136 lines
3.3 KiB
C
/*
|
|
* ALPHAPROJECT AP-SH4AD-0A Support.
|
|
*
|
|
* Copyright (C) 2010 ALPHAPROJECT Co.,Ltd.
|
|
* Copyright (C) 2010 Matt Fleming
|
|
* Copyright (C) 2010 Paul Mundt
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*/
|
|
#include <linux/init.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/io.h>
|
|
#include <linux/regulator/fixed.h>
|
|
#include <linux/regulator/machine.h>
|
|
#include <linux/smsc911x.h>
|
|
#include <linux/irq.h>
|
|
#include <linux/clk.h>
|
|
#include <asm/machvec.h>
|
|
#include <asm/sizes.h>
|
|
|
|
/* Dummy supplies, where voltage doesn't matter */
|
|
static struct regulator_consumer_supply dummy_supplies[] = {
|
|
REGULATOR_SUPPLY("vddvario", "smsc911x"),
|
|
REGULATOR_SUPPLY("vdd33a", "smsc911x"),
|
|
};
|
|
|
|
static struct resource smsc911x_resources[] = {
|
|
[0] = {
|
|
.name = "smsc911x-memory",
|
|
.start = 0xA4000000,
|
|
.end = 0xA4000000 + SZ_256 - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.name = "smsc911x-irq",
|
|
.start = evt2irq(0x200),
|
|
.end = evt2irq(0x200),
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct smsc911x_platform_config smsc911x_config = {
|
|
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
|
|
.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
|
|
.flags = SMSC911X_USE_16BIT,
|
|
.phy_interface = PHY_INTERFACE_MODE_MII,
|
|
};
|
|
|
|
static struct platform_device smsc911x_device = {
|
|
.name = "smsc911x",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(smsc911x_resources),
|
|
.resource = smsc911x_resources,
|
|
.dev = {
|
|
.platform_data = &smsc911x_config,
|
|
},
|
|
};
|
|
|
|
static struct platform_device *apsh4ad0a_devices[] __initdata = {
|
|
&smsc911x_device,
|
|
};
|
|
|
|
static int __init apsh4ad0a_devices_setup(void)
|
|
{
|
|
regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
|
|
|
|
return platform_add_devices(apsh4ad0a_devices,
|
|
ARRAY_SIZE(apsh4ad0a_devices));
|
|
}
|
|
device_initcall(apsh4ad0a_devices_setup);
|
|
|
|
static int apsh4ad0a_mode_pins(void)
|
|
{
|
|
int value = 0;
|
|
|
|
/* These are the factory default settings of SW1 and SW2.
|
|
* If you change these dip switches then you will need to
|
|
* adjust the values below as well.
|
|
*/
|
|
value |= MODE_PIN0; /* Clock Mode 3 */
|
|
value |= MODE_PIN1;
|
|
value &= ~MODE_PIN2;
|
|
value &= ~MODE_PIN3;
|
|
value &= ~MODE_PIN4; /* 16-bit Area0 bus width */
|
|
value |= MODE_PIN5;
|
|
value |= MODE_PIN6;
|
|
value |= MODE_PIN7; /* Normal mode */
|
|
value |= MODE_PIN8; /* Little Endian */
|
|
value |= MODE_PIN9; /* Crystal resonator */
|
|
value &= ~MODE_PIN10; /* 29-bit address mode */
|
|
value &= ~MODE_PIN11; /* PCI-E Root port */
|
|
value &= ~MODE_PIN12; /* 4 lane + 1 lane */
|
|
value |= MODE_PIN13; /* AUD Enable */
|
|
value &= ~MODE_PIN14; /* Normal Operation */
|
|
|
|
return value;
|
|
}
|
|
|
|
static int apsh4ad0a_clk_init(void)
|
|
{
|
|
struct clk *clk;
|
|
int ret;
|
|
|
|
clk = clk_get(NULL, "extal");
|
|
if (IS_ERR(clk))
|
|
return PTR_ERR(clk);
|
|
ret = clk_set_rate(clk, 33333000);
|
|
clk_put(clk);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Initialize the board */
|
|
static void __init apsh4ad0a_setup(char **cmdline_p)
|
|
{
|
|
pr_info("Alpha Project AP-SH4AD-0A support:\n");
|
|
}
|
|
|
|
static void __init apsh4ad0a_init_irq(void)
|
|
{
|
|
plat_irq_setup_pins(IRQ_MODE_IRQ3210);
|
|
}
|
|
|
|
/*
|
|
* The Machine Vector
|
|
*/
|
|
static struct sh_machine_vector mv_apsh4ad0a __initmv = {
|
|
.mv_name = "AP-SH4AD-0A",
|
|
.mv_setup = apsh4ad0a_setup,
|
|
.mv_mode_pins = apsh4ad0a_mode_pins,
|
|
.mv_clk_init = apsh4ad0a_clk_init,
|
|
.mv_init_irq = apsh4ad0a_init_irq,
|
|
};
|