mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 11:36:40 +07:00
7a5b4e16c8
Only register devices if we have platform data for those which require platform data. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
206 lines
4.7 KiB
C
206 lines
4.7 KiB
C
/*
|
|
* linux/arch/arm/mach-sa1100/hackkit.c
|
|
*
|
|
* Copyright (C) 2002 Stefan Eletzhofer <stefan.eletzhofer@eletztrick.de>
|
|
*
|
|
* This file contains all HackKit tweaks. Based on original work from
|
|
* Nicolas Pitre's assabet fixes
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
*/
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/tty.h>
|
|
#include <linux/module.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/cpufreq.h>
|
|
#include <linux/serial_core.h>
|
|
#include <linux/mtd/mtd.h>
|
|
#include <linux/mtd/partitions.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/setup.h>
|
|
#include <asm/page.h>
|
|
#include <asm/pgtable.h>
|
|
#include <asm/irq.h>
|
|
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/flash.h>
|
|
#include <asm/mach/map.h>
|
|
#include <asm/mach/irq.h>
|
|
#include <asm/mach/serial_sa1100.h>
|
|
|
|
#include "generic.h"
|
|
|
|
/**********************************************************************
|
|
* prototypes
|
|
*/
|
|
|
|
/* init funcs */
|
|
static void __init hackkit_map_io(void);
|
|
|
|
static u_int hackkit_get_mctrl(struct uart_port *port);
|
|
static void hackkit_set_mctrl(struct uart_port *port, u_int mctrl);
|
|
static void hackkit_uart_pm(struct uart_port *port, u_int state, u_int oldstate);
|
|
|
|
/**********************************************************************
|
|
* global data
|
|
*/
|
|
|
|
/**********************************************************************
|
|
* static data
|
|
*/
|
|
|
|
static struct map_desc hackkit_io_desc[] __initdata = {
|
|
{ /* Flash bank 0 */
|
|
.virtual = 0xe8000000,
|
|
.pfn = __phys_to_pfn(0x00000000),
|
|
.length = 0x01000000,
|
|
.type = MT_DEVICE
|
|
},
|
|
};
|
|
|
|
static struct sa1100_port_fns hackkit_port_fns __initdata = {
|
|
.set_mctrl = hackkit_set_mctrl,
|
|
.get_mctrl = hackkit_get_mctrl,
|
|
.pm = hackkit_uart_pm,
|
|
};
|
|
|
|
/**********************************************************************
|
|
* Static functions
|
|
*/
|
|
|
|
static void __init hackkit_map_io(void)
|
|
{
|
|
sa1100_map_io();
|
|
iotable_init(hackkit_io_desc, ARRAY_SIZE(hackkit_io_desc));
|
|
|
|
sa1100_register_uart_fns(&hackkit_port_fns);
|
|
sa1100_register_uart(0, 1); /* com port */
|
|
sa1100_register_uart(1, 2);
|
|
sa1100_register_uart(2, 3); /* radio module */
|
|
|
|
Ser1SDCR0 |= SDCR0_SUS;
|
|
}
|
|
|
|
/**
|
|
* hackkit_uart_pm - powermgmt callback function for system 3 UART
|
|
* @port: uart port structure
|
|
* @state: pm state
|
|
* @oldstate: old pm state
|
|
*
|
|
*/
|
|
static void hackkit_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
|
|
{
|
|
/* TODO: switch on/off uart in powersave mode */
|
|
}
|
|
|
|
/*
|
|
* Note! this can be called from IRQ context.
|
|
* FIXME: No modem ctrl lines yet.
|
|
*/
|
|
static void hackkit_set_mctrl(struct uart_port *port, u_int mctrl)
|
|
{
|
|
#if 0
|
|
if (port->mapbase == _Ser1UTCR0) {
|
|
u_int set = 0, clear = 0;
|
|
|
|
if (mctrl & TIOCM_RTS)
|
|
set |= PT_CTRL2_RS1_RTS;
|
|
else
|
|
clear |= PT_CTRL2_RS1_RTS;
|
|
|
|
if (mctrl & TIOCM_DTR)
|
|
set |= PT_CTRL2_RS1_DTR;
|
|
else
|
|
clear |= PT_CTRL2_RS1_DTR;
|
|
|
|
PTCTRL2_clear(clear);
|
|
PTCTRL2_set(set);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
static u_int hackkit_get_mctrl(struct uart_port *port)
|
|
{
|
|
u_int ret = 0;
|
|
#if 0
|
|
u_int irqsr = PT_IRQSR;
|
|
|
|
/* need 2 reads to read current value */
|
|
irqsr = PT_IRQSR;
|
|
|
|
/* TODO: check IRQ source register for modem/com
|
|
status lines and set them correctly. */
|
|
#endif
|
|
|
|
ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct mtd_partition hackkit_partitions[] = {
|
|
{
|
|
.name = "BLOB",
|
|
.size = 0x00040000,
|
|
.offset = 0x00000000,
|
|
.mask_flags = MTD_WRITEABLE, /* force read-only */
|
|
}, {
|
|
.name = "config",
|
|
.size = 0x00040000,
|
|
.offset = MTDPART_OFS_APPEND,
|
|
}, {
|
|
.name = "kernel",
|
|
.size = 0x00100000,
|
|
.offset = MTDPART_OFS_APPEND,
|
|
}, {
|
|
.name = "initrd",
|
|
.size = 0x00180000,
|
|
.offset = MTDPART_OFS_APPEND,
|
|
}, {
|
|
.name = "rootfs",
|
|
.size = 0x700000,
|
|
.offset = MTDPART_OFS_APPEND,
|
|
}, {
|
|
.name = "data",
|
|
.size = MTDPART_SIZ_FULL,
|
|
.offset = MTDPART_OFS_APPEND,
|
|
}
|
|
};
|
|
|
|
static struct flash_platform_data hackkit_flash_data = {
|
|
.map_name = "cfi_probe",
|
|
.parts = hackkit_partitions,
|
|
.nr_parts = ARRAY_SIZE(hackkit_partitions),
|
|
};
|
|
|
|
static struct resource hackkit_flash_resource = {
|
|
.start = SA1100_CS0_PHYS,
|
|
.end = SA1100_CS0_PHYS + SZ_32M,
|
|
.flags = IORESOURCE_MEM,
|
|
};
|
|
|
|
static void __init hackkit_init(void)
|
|
{
|
|
sa11x0_register_mtd(&hackkit_flash_data, &hackkit_flash_resource, 1);
|
|
}
|
|
|
|
/**********************************************************************
|
|
* Exported Functions
|
|
*/
|
|
|
|
MACHINE_START(HACKKIT, "HackKit Cpu Board")
|
|
.phys_io = 0x80000000,
|
|
.io_pg_offst = ((0xf8000000) >> 18) & 0xfffc,
|
|
.boot_params = 0xc0000100,
|
|
.map_io = hackkit_map_io,
|
|
.init_irq = sa1100_init_irq,
|
|
.timer = &sa1100_timer,
|
|
.init_machine = hackkit_init,
|
|
MACHINE_END
|