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/*
* TI OMAP processors UART emulation.
*
* Copyright (C) 2006-2008 Andrzej Zaborowski <balrog@zabor.org>
* Copyright (C) 2007-2009 Nokia Corporation
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 or
* (at your option) version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include "chardev/char.h"
#include "hw/arm/omap.h"
#include "hw/char/serial-mm.h"
#include "exec/address-spaces.h"
/* UARTs */
struct omap_uart_s {
MemoryRegion iomem;
hwaddr base;
SerialMM *serial; /* TODO */
omap_clk fclk;
qemu_irq irq;
uint8_t eblr;
uint8_t syscontrol;
uint8_t wkup;
uint8_t cfps;
uint8_t clksel;
};
void omap_uart_reset(struct omap_uart_s *s)
{
s->eblr = 0x00;
s->syscontrol = 0;
s->wkup = 0x3f;
s->cfps = 0x69;
s->clksel = 0;
}
struct omap_uart_s *omap_uart_init(hwaddr base,
qemu_irq irq, omap_clk fclk, omap_clk iclk,
qemu_irq txdma, qemu_irq rxdma,
const char *label, Chardev *chr)
{
struct omap_uart_s *s = g_new0(struct omap_uart_s, 1);
s->base = base;
s->fclk = fclk;
s->irq = irq;
s->serial = serial_mm_init(get_system_memory(), base, 2, irq,
omap_clk_getrate(fclk) / 16,
chr ?: qemu_chr_new(label, "null", NULL),
DEVICE_NATIVE_ENDIAN);
return s;
}
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