static unsigned
bfin_ppi_io_read_buffer (struct hw *me, void *dest, int space,
address_word addr, unsigned nr_bytes)
{
struct bfin_ppi *ppi = hw_data (me);
bu32 mmr_off;
bu16 *valuep;
mmr_off = addr - ppi->base;
valuep = (void *)((unsigned long)ppi + mmr_base() + mmr_off);
HW_TRACE_READ ();
dv_bfin_mmr_require_16 (me, addr, nr_bytes, false);
switch (mmr_off)
{
case mmr_offset(control):
case mmr_offset(count):
case mmr_offset(delay):
case mmr_offset(frame):
case mmr_offset(status):
dv_store_2 (dest, *valuep);
break;
default:
dv_bfin_mmr_invalid (me, addr, nr_bytes, false);
break;
}
return nr_bytes;
}
static unsigned
bfin_ebiu_ddrc_io_read_buffer (struct hw *me, void *dest,
int space, address_word addr, unsigned nr_bytes)
{
struct bfin_ebiu_ddrc *ddrc = hw_data (me);
bu32 mmr_off;
bu32 *value32p;
bu16 *value16p;
void *valuep;
mmr_off = addr - ddrc->base;
valuep = (void *)((unsigned long)ddrc + mmr_base() + mmr_off);
value16p = valuep;
value32p = valuep;
HW_TRACE_READ ();
switch (mmr_off)
{
case mmr_offset(errmst):
case mmr_offset(rstctl):
dv_bfin_mmr_require_16 (me, addr, nr_bytes, false);
dv_store_2 (dest, *value16p);
break;
default:
dv_bfin_mmr_require_32 (me, addr, nr_bytes, false);
dv_store_4 (dest, *value32p);
break;
}
return nr_bytes;
}
static unsigned
bfin_ctimer_io_read_buffer (struct hw *me, void *dest,
int space, address_word addr, unsigned nr_bytes)
{
struct bfin_ctimer *ctimer = hw_data (me);
bu32 mmr_off;
bu32 *valuep;
mmr_off = addr - ctimer->base;
valuep = (void *)((unsigned long)ctimer + mmr_base() + mmr_off);
HW_TRACE_READ ();
switch (mmr_off)
{
case mmr_offset(tcount):
/* Since we're optimizing events here, we need to calculate
the new tcount value. */
if (bfin_ctimer_enabled (ctimer))
bfin_ctimer_update_count (me, ctimer);
break;
}
dv_store_4 (dest, *valuep);
return nr_bytes;
}
static unsigned
bfin_wdog_io_read_buffer (struct hw *me, void *dest,
int space, address_word addr, unsigned nr_bytes)
{
struct bfin_wdog *wdog = hw_data (me);
bu32 mmr_off;
bu16 *value16p;
bu32 *value32p;
void *valuep;
mmr_off = addr - wdog->base;
valuep = (void *)((unsigned long)wdog + mmr_base() + mmr_off);
value16p = valuep;
value32p = valuep;
HW_TRACE_READ ();
switch (mmr_off)
{
case mmr_offset(ctl):
dv_bfin_mmr_require_16 (me, addr, nr_bytes, false);
dv_store_2 (dest, *value16p);
break;
case mmr_offset(cnt):
case mmr_offset(stat):
dv_store_4 (dest, *value32p);
break;
}
return nr_bytes;
}
static unsigned
bfin_jtag_io_read_buffer (struct hw *me, void *dest, int space,
address_word addr, unsigned nr_bytes)
{
struct bfin_jtag *jtag = hw_data (me);
bu32 mmr_off;
bu32 value;
bu32 *valuep;
mmr_off = addr - jtag->base;
valuep = (void *)((unsigned long)jtag + mmr_base() + mmr_off);
HW_TRACE_READ ();
switch (mmr_off)
{
case mmr_offset(dbgstat):
case mmr_offset(dspid):
value = *valuep;
break;
default:
while (1) /* Core MMRs -> exception -> doesn't return. */
dv_bfin_mmr_invalid (me, addr, nr_bytes, false);
break;
}
dv_store_4 (dest, value);
return nr_bytes;
}
static unsigned
bfin_uart_io_read_buffer (struct hw *me, void *dest,
int space, address_word addr, unsigned nr_bytes)
{
struct bfin_uart *uart = hw_data (me);
bu32 mmr_off;
bu16 *valuep;
mmr_off = addr - uart->base;
valuep = (void *)((unsigned long)uart + mmr_base() + mmr_off);
HW_TRACE_READ ();
dv_bfin_mmr_require_16 (me, addr, nr_bytes, false);
switch (mmr_off)
{
case mmr_offset(dll):
if (uart->lcr & DLAB)
dv_store_2 (dest, uart->dll);
else
{
uart->rbr = bfin_uart_get_next_byte (me, uart->rbr, uart->mcr, NULL);
dv_store_2 (dest, uart->rbr);
}
break;
case mmr_offset(dlh):
if (uart->lcr & DLAB)
dv_store_2 (dest, uart->dlh);
else
dv_store_2 (dest, uart->ier);
break;
case mmr_offset(lsr):
/* XXX: Reads are destructive on most parts, but not all ... */
uart->lsr |= bfin_uart_get_status (me);
dv_store_2 (dest, *valuep);
uart->lsr = 0;
break;
case mmr_offset(iir):
/* XXX: Reads are destructive ... */
case mmr_offset(lcr):
case mmr_offset(mcr):
case mmr_offset(scr):
case mmr_offset(gctl):
dv_store_2 (dest, *valuep);
break;
default:
dv_bfin_mmr_invalid (me, addr, nr_bytes, false);
break;
}
return nr_bytes;
}
static unsigned
bfin_eppi_io_read_buffer (struct hw *me, void *dest,
int space, address_word addr, unsigned nr_bytes)
{
struct bfin_eppi *eppi = hw_data (me);
bu32 mmr_off;
bu16 *value16p;
bu32 *value32p;
void *valuep;
/* Invalid access mode is higher priority than missing register. */
if (!dv_bfin_mmr_require_16_32 (me, addr, nr_bytes, true))
return 0;
mmr_off = addr - eppi->base;
valuep = (void *)((unsigned long)eppi + mmr_base() + mmr_off);
value16p = valuep;
value32p = valuep;
HW_TRACE_READ ();
switch (mmr_off)
{
case mmr_offset(status):
case mmr_offset(hcount):
case mmr_offset(hdelay):
case mmr_offset(vcount):
case mmr_offset(vdelay):
case mmr_offset(frame):
case mmr_offset(line):
case mmr_offset(clkdiv):
if (!dv_bfin_mmr_require_16 (me, addr, nr_bytes, false))
return 0;
dv_store_2 (dest, *value16p);
break;
case mmr_offset(control):
case mmr_offset(fs1w_hbl):
case mmr_offset(fs1p_avpl):
case mmr_offset(fsw2_lvb):
case mmr_offset(fs2p_lavf):
case mmr_offset(clip):
case mmr_offset(err):
if (!dv_bfin_mmr_require_32 (me, addr, nr_bytes, false))
return 0;
dv_store_4 (dest, *value32p);
break;
default:
dv_bfin_mmr_invalid (me, addr, nr_bytes, false);
return 0;
}
return nr_bytes;
}
static unsigned
bfin_gpio_io_read_buffer (struct hw *me, void *dest, int space,
address_word addr, unsigned nr_bytes)
{
struct bfin_gpio *port = hw_data (me);
bu32 mmr_off;
bu16 *value16p;
bu32 *value32p;
void *valuep;
mmr_off = addr - port->base;
/* Invalid access mode is higher priority than missing register. */
if (mmr_off == mmr_offset (mux))
{
if (!dv_bfin_mmr_require_32 (me, addr, nr_bytes, false))
return 0;
}
else
if (!dv_bfin_mmr_require_16 (me, addr, nr_bytes, false))
return 0;
valuep = (void *)((unsigned long)port + mmr_base() + mmr_off);
value16p = valuep;
value32p = valuep;
HW_TRACE_READ ();
switch (mmr_off)
{
case mmr_offset(data):
case mmr_offset(clear):
case mmr_offset(set):
dv_store_2 (dest, port->data);
break;
case mmr_offset(dir_clear):
case mmr_offset(dir_set):
dv_store_2 (dest, port->dir);
break;
case mmr_offset(fer):
case mmr_offset(inen):
dv_store_2 (dest, *value16p);
break;
case mmr_offset(mux):
dv_store_4 (dest, *value32p);
break;
default:
dv_bfin_mmr_invalid (me, addr, nr_bytes, false);
return 0;
}
return nr_bytes;
}
static unsigned
bfin_uart_io_read_buffer (struct hw *me, void *dest,
int space, address_word addr, unsigned nr_bytes)
{
struct bfin_uart *uart = hw_data (me);
bu32 mmr_off;
bu16 *valuep;
/* Invalid access mode is higher priority than missing register. */
if (!dv_bfin_mmr_require_16 (me, addr, nr_bytes, false))
return 0;
mmr_off = addr - uart->base;
valuep = (void *)((unsigned long)uart + mmr_base() + mmr_off);
HW_TRACE_READ ();
switch (mmr_off)
{
case mmr_offset(rbr):
uart->rbr = bfin_uart_get_next_byte (me, uart->rbr, uart->mcr, NULL);
dv_store_2 (dest, uart->rbr);
break;
case mmr_offset(ier_set):
case mmr_offset(ier_clear):
dv_store_2 (dest, uart->ier);
bfin_uart_reschedule (me);
break;
case mmr_offset(lsr):
uart->lsr &= ~(DR | THRE | TEMT);
uart->lsr |= bfin_uart_get_status (me);
case mmr_offset(thr):
case mmr_offset(msr):
case mmr_offset(dll):
case mmr_offset(dlh):
case mmr_offset(gctl):
case mmr_offset(lcr):
case mmr_offset(mcr):
case mmr_offset(scr):
dv_store_2 (dest, *valuep);
break;
default:
dv_bfin_mmr_invalid (me, addr, nr_bytes, false);
return 0;
}
return nr_bytes;
}
static unsigned
bfin_cec_io_read_buffer (struct hw *me, void *dest,
int space, address_word addr, unsigned nr_bytes)
{
struct bfin_cec *cec = hw_data (me);
bu32 mmr_off;
bu32 *valuep;
mmr_off = addr - cec->base;
valuep = (void *)((unsigned long)cec + mmr_base() + mmr_off);
HW_TRACE_READ ();
dv_store_4 (dest, *valuep);
return nr_bytes;
}
static unsigned
bfin_rtc_io_read_buffer (struct hw *me, void *dest,
int space, address_word addr, unsigned nr_bytes)
{
struct bfin_rtc *rtc = hw_data (me);
bu32 mmr_off;
bu16 *value16p;
bu32 *value32p;
void *valuep;
mmr_off = addr - rtc->base;
valuep = (void *)((unsigned long)rtc + mmr_base() + mmr_off);
value16p = valuep;
value32p = valuep;
HW_TRACE_READ ();
switch (mmr_off)
{
case mmr_offset(stat):
{
time_t t = time (NULL);
struct tm *tm = localtime (&t);
bu32 value =
(((tm->tm_year - 70) * 365 + tm->tm_yday) << 17) |
(tm->tm_hour << 12) |
(tm->tm_min << 6) |
(tm->tm_sec << 0);
dv_store_4 (dest, value);
break;
}
case mmr_offset(alarm):
dv_store_4 (dest, *value32p);
break;
case mmr_offset(istat):
case mmr_offset(ictl):
case mmr_offset(swcnt):
case mmr_offset(pren):
dv_store_2 (dest, *value16p);
break;
}
return nr_bytes;
}
static unsigned
bfin_ebiu_sdc_io_read_buffer (struct hw *me, void *dest,
int space, address_word addr, unsigned nr_bytes)
{
struct bfin_ebiu_sdc *sdc = hw_data (me);
bu32 mmr_off;
bu32 *value32p;
bu16 *value16p;
void *valuep;
mmr_off = addr - sdc->base;
valuep = (void *)((unsigned long)sdc + mmr_base() + mmr_off);
value16p = valuep;
value32p = valuep;
HW_TRACE_READ ();
switch (mmr_off)
{
case mmr_offset(sdgctl):
dv_store_4 (dest, *value32p);
break;
case mmr_offset(sdbctl):
if (sdc->type == 561)
{
dv_bfin_mmr_require_32 (me, addr, nr_bytes, false);
dv_store_4 (dest, *value32p);
}
else
{
dv_bfin_mmr_require_16 (me, addr, nr_bytes, false);
dv_store_2 (dest, *value16p);
}
break;
case mmr_offset(sdrrc):
case mmr_offset(sdstat):
dv_bfin_mmr_require_16 (me, addr, nr_bytes, false);
dv_store_2 (dest, *value16p);
break;
}
return nr_bytes;
}
static unsigned
bfin_gptimer_io_read_buffer (struct hw *me, void *dest, int space,
address_word addr, unsigned nr_bytes)
{
struct bfin_gptimer *gptimer = hw_data (me);
bu32 mmr_off;
bu16 *value16p;
bu32 *value32p;
void *valuep;
/* Invalid access mode is higher priority than missing register. */
if (!dv_bfin_mmr_require_16_32 (me, addr, nr_bytes, false))
return 0;
mmr_off = addr - gptimer->base;
valuep = (void *)((unsigned long)gptimer + mmr_base() + mmr_off);
value16p = valuep;
value32p = valuep;
HW_TRACE_READ ();
switch (mmr_off)
{
case mmr_offset(config):
if (!dv_bfin_mmr_require_16 (me, addr, nr_bytes, false))
return 0;
dv_store_2 (dest, *value16p);
break;
case mmr_offset(counter):
case mmr_offset(period):
case mmr_offset(width):
if (!dv_bfin_mmr_require_32 (me, addr, nr_bytes, false))
return 0;
dv_store_4 (dest, *value32p);
break;
default:
dv_bfin_mmr_invalid (me, addr, nr_bytes, false);
return 0;
}
return nr_bytes;
}
static unsigned
bfin_cec_io_read_buffer (struct hw *me, void *dest,
int space, address_word addr, unsigned nr_bytes)
{
struct bfin_cec *cec = hw_data (me);
bu32 mmr_off;
bu32 *valuep;
/* Invalid access mode is higher priority than missing register. */
if (!dv_bfin_mmr_require_32 (me, addr, nr_bytes, false))
return 0;
mmr_off = addr - cec->base;
valuep = (void *)((unsigned long)cec + mmr_base() + mmr_off);
HW_TRACE_READ ();
dv_store_4 (dest, *valuep);
return nr_bytes;
}
static unsigned
bfin_spi_io_read_buffer (struct hw *me, void *dest, int space,
address_word addr, unsigned nr_bytes)
{
struct bfin_spi *spi = hw_data (me);
bu32 mmr_off;
bu16 *valuep;
/* Invalid access mode is higher priority than missing register. */
if (!dv_bfin_mmr_require_16 (me, addr, nr_bytes, false))
return 0;
mmr_off = addr - spi->base;
valuep = (void *)((unsigned long)spi + mmr_base() + mmr_off);
HW_TRACE_READ ();
switch (mmr_off)
{
case mmr_offset(rdbr):
dv_store_2 (dest, *valuep);
if (bfin_spi_enabled (spi) && bfin_spi_timod (spi) == RDBR_CORE)
spi->stat &= ~(RXS | TXS);
break;
case mmr_offset(ctl):
case mmr_offset(stat):
case mmr_offset(flg):
case mmr_offset(tdbr):
case mmr_offset(baud):
case mmr_offset(shadow):
dv_store_2 (dest, *valuep);
break;
default:
dv_bfin_mmr_invalid (me, addr, nr_bytes, false);
return 0;
}
return nr_bytes;
}
static unsigned
bfin_ebiu_ddrc_io_read_buffer (struct hw *me, void *dest,
int space, address_word addr, unsigned nr_bytes)
{
struct bfin_ebiu_ddrc *ddrc = hw_data (me);
bu32 mmr_off;
bu32 *value32p;
bu16 *value16p;
void *valuep;
/* Invalid access mode is higher priority than missing register. */
if (!dv_bfin_mmr_require_16_32 (me, addr, nr_bytes, true))
return 0;
mmr_off = addr - ddrc->base;
valuep = (void *)((unsigned long)ddrc + mmr_base() + mmr_off);
value16p = valuep;
value32p = valuep;
HW_TRACE_READ ();
switch (mmr_off)
{
case mmr_offset(errmst):
case mmr_offset(rstctl):
if (!dv_bfin_mmr_require_16 (me, addr, nr_bytes, false))
return 0;
dv_store_2 (dest, *value16p);
break;
default:
if (!dv_bfin_mmr_require_32 (me, addr, nr_bytes, false))
return 0;
dv_store_4 (dest, *value32p);
break;
}
return nr_bytes;
}