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/* $OpenBSD: exynos_machdep.c,v 1.6 2016/04/24 00:57:23 patrick Exp $ */
/*
* Copyright (c) 2013 Patrick Wildt <patrick@blueri.se>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/termios.h>
#include <machine/bus.h>
#if NFDT > 0
#include <machine/fdt.h>
#endif
#include <arm/cortex/smc.h>
#include <arm/armv7/armv7var.h>
#include <armv7/armv7/armv7var.h>
#include <armv7/exynos/exdisplayvar.h>
#include <armv7/exynos/exuartvar.h>
#include <armv7/armv7/armv7_machdep.h>
extern void exdog_reset(void);
extern char *exynos_board_name(void);
extern struct board_dev *exynos_board_devs(void);
extern void exynos_board_init(void);
extern int comcnspeed;
extern int comcnmode;
static void
exynos_platform_smc_write(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off,
uint32_t op, uint32_t val)
{
bus_space_write_4(iot, ioh, off, val);
}
static void
exynos_platform_init_cons(void)
{
paddr_t paddr;
size_t size;
switch (board_id) {
case BOARD_ID_EXYNOS5_CHROMEBOOK:
#if NFDT > 0
void *node;
node = fdt_find_node("/framebuffer");
if (node != NULL) {
uint32_t *mem;
if (fdt_node_property(node, "reg", (char **)&mem) >= 2*sizeof(uint32_t)) {
paddr = betoh32(*mem++);
size = betoh32(*mem);
}
}
#else
paddr = 0xbfc00000;
size = 0x202000;
#endif
exdisplay_cnattach(&armv7_bs_tag, paddr, size);
break;
case BOARD_ID_EXYNOS4_SMDKC210:
case BOARD_ID_EXYNOS4_NURI:
paddr = 0x13800000;
exuartcnattach(&armv7_bs_tag, paddr, comcnspeed, comcnmode);
break;
default:
printf("board type %x unknown", board_id);
return;
/* XXX - HELP */
}
}
static void
exynos_platform_watchdog_reset(void)
{
exdog_reset();
}
static void
exynos_platform_powerdown(void)
{
}
const char *
exynos_platform_board_name(void)
{
return (exynos_board_name());
}
static void
exynos_platform_disable_l2_if_needed(void)
{
}
void
exynos_platform_board_init(void)
{
exynos_board_init();
}
struct armv7_platform exynos_platform = {
.boot_name = "OpenBSD/exynos",
.board_name = exynos_platform_board_name,
.board_init = exynos_platform_board_init,
.smc_write = exynos_platform_smc_write,
.init_cons = exynos_platform_init_cons,
.watchdog_reset = exynos_platform_watchdog_reset,
.powerdown = exynos_platform_powerdown,
.disable_l2_if_needed = exynos_platform_disable_l2_if_needed,
};
struct armv7_platform *
exynos_platform_match(void)
{
struct board_dev *devs;
devs = exynos_board_devs();
if (devs == NULL)
return (NULL);
exynos_platform.devs = devs;
return (&exynos_platform);
}
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