freebsd-dev/sys/arm/ralink/rt1310_machdep.c
Adrian Chadd 5c99cda025 [arm] [rt1310] add initial RT1310 SoC code.
This code base on lpc code. Ralink RT1310 is oem from 5V Technologies.
RT1310 is ARM926EJS(arm5t).

Tested:

* Buffalo WZR2-G300N

Submitted by:	Hiroki Mori <yamori813@yahoo.co.jp>
Reviewed by:	mizhka
Differential Revision:	https://reviews.freebsd.org/D7238
2017-05-06 06:14:46 +00:00

177 lines
4.2 KiB
C

/*-
* Copyright (c) 1994-1998 Mark Brinicombe.
* Copyright (c) 1994 Brini.
* All rights reserved.
*
* This code is derived from software written for Brini by Mark Brinicombe
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Brini.
* 4. The name of the company nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: FreeBSD: sys/arm/lpc/lpc_machdep.c
*/
#include "opt_ddb.h"
#include "opt_platform.h"
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#define _ARM32_BUS_DMA_PRIVATE
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/reboot.h>
#include <sys/devmap.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <machine/bus.h>
#include <machine/fdt.h>
#include <machine/machdep.h>
#include <machine/platform.h>
#include <machine/cpu.h>
#include <arm/ralink/rt1310reg.h>
#include <arm/ralink/rt1310var.h>
#include <dev/fdt/fdt_common.h>
#ifdef EARLY_PRINTF
early_putc_t *early_putc;
#endif
uint32_t rt1310_master_clock;
vm_offset_t
platform_lastaddr(void)
{
return (devmap_lastaddr());
}
void
platform_probe_and_attach(void)
{
}
void
platform_gpio_init(void)
{
/*
* Set initial values of GPIO output ports
*/
}
void
platform_late_init(void)
{
bootverbose = 1;
}
/*
* Add a single static device mapping.
* The values used were taken from the ranges property of the SoC node in the
* dts file when this code was converted to arm_devmap_add_entry().
*/
int
platform_devmap_init(void)
{
devmap_add_entry(0x19C00000, 0xE0000);
devmap_add_entry(0x1e800000, 0x800000);
devmap_add_entry(0x1f000000, 0x400000);
return (0);
}
struct arm32_dma_range *
bus_dma_get_range(void)
{
return (NULL);
}
int
bus_dma_get_range_nb(void)
{
return (0);
}
void
cpu_reset(void)
{
bus_space_tag_t bst;
bus_space_handle_t bsh;
bst = fdtbus_bs_tag;
/* Enable WDT */
/* Instant assert of RESETOUT_N with pulse length 1ms */
bus_space_map(bst, 0x1e8c0000, 0x20000, 0, &bsh);
bus_space_write_4(bst, bsh, 0, 13000);
bus_space_write_4(bst, bsh, 8, (1<<3) | (1<<4) | 7);
bus_space_unmap(bst, bsh, 0x20000);
for (;;)
continue;
}
#ifdef RALINK_BOOT_DEBUG
void bootdebug1(int c);
void bootdebug1(int c)
{
/* direct put uart physical address */
uint8_t* uart_base_addr=(uint8_t*)0x1e840000;
*(uart_base_addr) = c;
}
void bootdebug2(int c);
void bootdebug2(int c)
{
#if defined(SOCDEV_PA) && defined(SOCDEV_VA)
/* direct put uart map address at locore-v4.S */
uint8_t* uart_base_addr=(uint8_t*)0xce840000;
*(uart_base_addr) = c;
#endif
}
void bootdebug3(int c);
void bootdebug3(int c)
{
bus_space_tag_t bst;
bus_space_handle_t bsh;
bst = fdtbus_bs_tag;
bus_space_map(bst, 0x1e840000, 0x20000, 0, &bsh);
bus_space_write_1(bst, bsh, 0, c);
bus_space_unmap(bst, bsh, 0x20000);
}
#endif