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/*-
* Copyright (c) 2013 Ruslan Bukin <br@bsdpad.com>
* Copyright (c) 2015 Semihalf
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR 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.
*
*/
#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/lock.h>
#include <sys/mutex.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <machine/bus.h>
#include <machine/frame.h> /* For trapframe_t, used in <machine/machdep.h> */
#include <machine/machdep.h>
#include <machine/devmap.h>
#include <machine/platform.h>
#include <machine/fdt.h>
#include <dev/fdt/fdt_common.h>
#include "opt_ddb.h"
#include "opt_platform.h"
struct mtx al_dbg_lock;
#define DEVMAP_MAX_VA_ADDRESS 0xF0000000
bus_addr_t al_devmap_pa;
bus_addr_t al_devmap_size;
#define AL_NB_SERVICE_OFFSET 0x70000
#define AL_NB_CCU_OFFSET 0x90000
#define AL_CCU_SNOOP_CONTROL_IOFAB_0_OFFSET 0x4000
#define AL_CCU_SNOOP_CONTROL_IOFAB_1_OFFSET 0x5000
#define AL_CCU_SPECULATION_CONTROL_OFFSET 0x4
#define AL_NB_ACF_MISC_OFFSET 0xD0
#define AL_NB_ACF_MISC_READ_BYPASS (1 << 30)
int alpine_get_devmap_base(bus_addr_t *pa, bus_addr_t *size);
vm_offset_t
platform_lastaddr(void)
{
return (DEVMAP_MAX_VA_ADDRESS);
}
void
platform_probe_and_attach(void)
{
}
void
platform_gpio_init(void)
{
}
void
platform_late_init(void)
{
bus_addr_t reg_baddr;
uint32_t val;
if (!mtx_initialized(&al_dbg_lock))
mtx_init(&al_dbg_lock, "ALDBG", "ALDBG", MTX_SPIN);
/* configure system fabric */
if (bus_space_map(fdtbus_bs_tag, al_devmap_pa, al_devmap_size, 0,
®_baddr))
panic("Couldn't map Register Space area");
/* do not allow reads to bypass writes to different addresses */
val = bus_space_read_4(fdtbus_bs_tag, reg_baddr,
AL_NB_SERVICE_OFFSET + AL_NB_ACF_MISC_OFFSET);
val &= ~AL_NB_ACF_MISC_READ_BYPASS;
bus_space_write_4(fdtbus_bs_tag, reg_baddr,
AL_NB_SERVICE_OFFSET + AL_NB_ACF_MISC_OFFSET, val);
/* enable cache snoop */
bus_space_write_4(fdtbus_bs_tag, reg_baddr,
AL_NB_CCU_OFFSET + AL_CCU_SNOOP_CONTROL_IOFAB_0_OFFSET, 1);
bus_space_write_4(fdtbus_bs_tag, reg_baddr,
AL_NB_CCU_OFFSET + AL_CCU_SNOOP_CONTROL_IOFAB_1_OFFSET, 1);
/* disable speculative fetches from masters */
bus_space_write_4(fdtbus_bs_tag, reg_baddr,
AL_NB_CCU_OFFSET + AL_CCU_SPECULATION_CONTROL_OFFSET, 7);
bus_space_unmap(fdtbus_bs_tag, reg_baddr, al_devmap_size);
}
/*
* Construct devmap table with DT-derived config data.
*/
int
platform_devmap_init(void)
{
alpine_get_devmap_base(&al_devmap_pa, &al_devmap_size);
arm_devmap_add_entry(al_devmap_pa, al_devmap_size);
return (0);
}
struct arm32_dma_range *
bus_dma_get_range(void)
{
return (NULL);
}
int
bus_dma_get_range_nb(void)
{
return (0);
}
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