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// SPDX-License-Identifier: GPL-2.0
/*
* ALPHAPROJECT AP-SH4A-3A Support.
*
* Copyright (C) 2010 ALPHAPROJECT Co.,Ltd.
* Copyright (C) 2008 Yoshihiro Shimoda
* Copyright (C) 2009 Paul Mundt
*/
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/mtd/physmap.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 <linux/sizes.h>
#include <asm/clock.h>
static struct mtd_partition nor_flash_partitions[] = {
{
.name = "loader",
.offset = 0x00000000,
.size = 512 * 1024,
},
{
.name = "bootenv",
.offset = MTDPART_OFS_APPEND,
.size = 512 * 1024,
},
{
.name = "kernel",
.offset = MTDPART_OFS_APPEND,
.size = 4 * 1024 * 1024,
},
{
.name = "data",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
},
};
static struct physmap_flash_data nor_flash_data = {
.width = 4,
.parts = nor_flash_partitions,
.nr_parts = ARRAY_SIZE(nor_flash_partitions),
};
static struct resource nor_flash_resources[] = {
[0] = {
.start = 0x00000000,
.end = 0x01000000 - 1,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device nor_flash_device = {
.name = "physmap-flash",
.dev = {
.platform_data = &nor_flash_data,
},
.num_resources = ARRAY_SIZE(nor_flash_resources),
.resource = nor_flash_resources,
};
/* 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 *apsh4a3a_devices[] __initdata = {
&nor_flash_device,
&smsc911x_device,
};
static int __init apsh4a3a_devices_setup(void)
{
regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
return platform_add_devices(apsh4a3a_devices,
ARRAY_SIZE(apsh4a3a_devices));
}
device_initcall(apsh4a3a_devices_setup);
static int apsh4a3a_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 apsh4a3a_setup(char **cmdline_p)
{
printk(KERN_INFO "Alpha Project AP-SH4A-3A support:\n");
}
static void __init apsh4a3a_init_irq(void)
{
plat_irq_setup_pins(IRQ_MODE_IRQ7654);
}
/* Return the board specific boot mode pin configuration */
static int apsh4a3a_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 16 */
value &= ~MODE_PIN1;
value &= ~MODE_PIN2;
value &= ~MODE_PIN3;
value |= MODE_PIN4;
value &= ~MODE_PIN5; /* 16-bit Area0 bus width */
value |= MODE_PIN6; /* Area 0 SRAM interface */
value |= MODE_PIN7;
value |= MODE_PIN8; /* Little Endian */
value |= MODE_PIN9; /* Master Mode */
value |= MODE_PIN10; /* Crystal resonator */
value |= MODE_PIN11; /* Display Unit */
value |= MODE_PIN12;
value &= ~MODE_PIN13; /* 29-bit address mode */
value |= MODE_PIN14; /* No PLL step-up */
return value;
}
/*
* The Machine Vector
*/
static struct sh_machine_vector mv_apsh4a3a __initmv = {
.mv_name = "AP-SH4A-3A",
.mv_setup = apsh4a3a_setup,
.mv_clk_init = apsh4a3a_clk_init,
.mv_init_irq = apsh4a3a_init_irq,
.mv_mode_pins = apsh4a3a_mode_pins,
};
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