static void
at91_clock_init(void)
{
struct at91_pmc_clock *clk;
/* Update USB device port clock info */
clk = at91_pmc_clock_ref("udpck");
clk->pmc_mask = PMC_SCER_UDP_SAM9;
at91_pmc_clock_deref(clk);
/* Update USB host port clock info */
clk = at91_pmc_clock_ref("uhpck");
clk->pmc_mask = PMC_SCER_UHP_SAM9;
at91_pmc_clock_deref(clk);
/* Each SOC has different PLL contraints */
clk = at91_pmc_clock_ref("plla");
clk->pll_min_in = SAM9260_PLL_A_MIN_IN_FREQ; /* 1 MHz */
clk->pll_max_in = SAM9260_PLL_A_MAX_IN_FREQ; /* 32 MHz */
clk->pll_min_out = SAM9260_PLL_A_MIN_OUT_FREQ; /* 80 MHz */
clk->pll_max_out = SAM9260_PLL_A_MAX_OUT_FREQ; /* 240 MHz */
clk->pll_mul_shift = SAM9260_PLL_A_MUL_SHIFT;
clk->pll_mul_mask = SAM9260_PLL_A_MUL_MASK;
clk->pll_div_shift = SAM9260_PLL_A_DIV_SHIFT;
clk->pll_div_mask = SAM9260_PLL_A_DIV_MASK;
clk->set_outb = at91_pll_outa;
at91_pmc_clock_deref(clk);
/*
* Fudge MAX pll in frequence down below 3.0 MHz to ensure
* PMC alogrithm choose the divisor that causes the input clock
* to be near the optimal 2 MHz per datasheet. We know
* we are going to be using this for the USB clock at 96 MHz.
* Causes no extra frequency deviation for all recomended crystal
* values. See Note 1, table 40-16 SAM9260 doc.
*/
clk = at91_pmc_clock_ref("pllb");
clk->pll_min_in = SAM9260_PLL_B_MIN_IN_FREQ; /* 1 MHz */
clk->pll_max_in = SAM9260_PLL_B_MAX_IN_FREQ; /* 5 MHz */
clk->pll_max_in = 2999999; /* ~3 MHz */
clk->pll_min_out = SAM9260_PLL_B_MIN_OUT_FREQ; /* 70 MHz */
clk->pll_max_out = SAM9260_PLL_B_MAX_OUT_FREQ; /* 130 MHz */
clk->pll_mul_shift = SAM9260_PLL_B_MUL_SHIFT;
clk->pll_mul_mask = SAM9260_PLL_B_MUL_MASK;
clk->pll_div_shift = SAM9260_PLL_B_DIV_SHIFT;
clk->pll_div_mask = SAM9260_PLL_B_DIV_MASK;
clk->set_outb = at91_pll_outb;
at91_pmc_clock_deref(clk);
}
/*
* Allow the master clock frequency to be changed from whatever the bootloader
* set up, because sometimes it's harder to change/update a bootloader than it
* is to change/update the kernel once a product is in the field.
*/
static void
master_clock_init(void)
{
uint32_t mckr = RD4HW(AT91RM92_PMC_BASE, PMC_MCKR);
int hintvalue = 0;
int newmckr = 0;
/*
* If there's a hint that specifies the contents of MCKR, use it
* without question (it had better be right).
*
* If there's a "mckfreq" hint it might be in hertz or mhz (convert the
* latter to hz). Calculate the new MCK divider. If the CPU frequency
* is not a sane multiple of the hinted MCK frequency this is likely to
* behave badly. The moral is: don't hint at impossibilities.
*/
if (resource_int_value("at91", 0, "mckr", &hintvalue) == 0) {
newmckr = hintvalue;
} else {
hintvalue = 90; /* Default to 90mhz if not specified. */
resource_int_value("at91", 0, "mckfreq", &hintvalue);
if (hintvalue != 0) {
if (hintvalue < 1000)
hintvalue *= 1000000;
if (hintvalue != at91_master_clock) {
uint32_t divider;
struct at91_pmc_clock * cpuclk;
cpuclk = at91_pmc_clock_ref("cpu");
divider = (cpuclk->hz / hintvalue) - 1;
newmckr = (mckr & 0xFFFFFCFF) | ((divider & 0x03) << 8);
at91_pmc_clock_deref(cpuclk);
}
}
}
/* If the new mckr value is different than what's in the register now,
* make the change and wait for the clocks to settle (MCKRDY status).
*
* MCKRDY will never be asserted unless either the selected clock or the
* prescaler value changes (but not both at once) [this is detailed in
* the rm9200 errata]. This code assumes the prescaler value is always
* zero and that by time we get to here we're running on something other
* than the slow clock, so to change the mckr divider we first change
* back to the slow clock (keeping prescaler and divider unchanged),
* then go back to the original selected clock with the new divider.
*
* After changing MCK, go re-init everything clock-related, and reset
* the baud rate generator for the console (doing this here is kind of a
* rude hack, but hey, you do what you have to to run MCK faster).
*/
if (newmckr != 0 && newmckr != mckr) {
if (mckr & 0x03)
change_mckr(mckr & ~0x03);
change_mckr(newmckr);
at91_pmc_init_clock();
WR4HW(AT91RM92_DBGU_BASE, USART_BRGR, BAUD2DIVISOR(115200));
}
}
static void
at91_clock_init(void)
{
struct at91_pmc_clock *clk;
/* Update USB device port clock info */
clk = at91_pmc_clock_ref("udpck");
clk->pmc_mask = PMC_SCER_UDP;
at91_pmc_clock_deref(clk);
/* Update USB host port clock info */
clk = at91_pmc_clock_ref("uhpck");
clk->pmc_mask = PMC_SCER_UHP;
at91_pmc_clock_deref(clk);
/* Each SOC has different PLL contraints */
clk = at91_pmc_clock_ref("plla");
clk->pll_min_in = RM9200_PLL_A_MIN_IN_FREQ; /* 1 MHz */
clk->pll_max_in = RM9200_PLL_A_MAX_IN_FREQ; /* 32 MHz */
clk->pll_min_out = RM9200_PLL_A_MIN_OUT_FREQ; /* 80 MHz */
clk->pll_max_out = RM9200_PLL_A_MAX_OUT_FREQ; /* 180 MHz */
clk->pll_mul_shift = RM9200_PLL_A_MUL_SHIFT;
clk->pll_mul_mask = RM9200_PLL_A_MUL_MASK;
clk->pll_div_shift = RM9200_PLL_A_DIV_SHIFT;
clk->pll_div_mask = RM9200_PLL_A_DIV_MASK;
clk->set_outb = at91_pll_outb;
at91_pmc_clock_deref(clk);
clk = at91_pmc_clock_ref("pllb");
clk->pll_min_in = RM9200_PLL_B_MIN_IN_FREQ; /* 100 KHz */
clk->pll_max_in = RM9200_PLL_B_MAX_IN_FREQ; /* 32 MHz */
clk->pll_min_out = RM9200_PLL_B_MIN_OUT_FREQ; /* 30 MHz */
clk->pll_max_out = RM9200_PLL_B_MAX_OUT_FREQ; /* 240 MHz */
clk->pll_mul_shift = RM9200_PLL_B_MUL_SHIFT;
clk->pll_mul_mask = RM9200_PLL_B_MUL_MASK;
clk->pll_div_shift = RM9200_PLL_B_DIV_SHIFT;
clk->pll_div_mask = RM9200_PLL_B_DIV_MASK;
clk->set_outb = at91_pll_outb;
at91_pmc_clock_deref(clk);
}
static void
at91_clock_init(void)
{
struct at91_pmc_clock *clk;
/* Update USB host port clock info */
clk = at91_pmc_clock_ref("uhpck");
clk->pmc_mask = PMC_SCER_UHP_SAM9;
at91_pmc_clock_deref(clk);
/* Each SOC has different PLL contraints */
clk = at91_pmc_clock_ref("plla");
clk->pll_min_in = SAM9G45_PLL_A_MIN_IN_FREQ; /* 2 MHz */
clk->pll_max_in = SAM9G45_PLL_A_MAX_IN_FREQ; /* 32 MHz */
clk->pll_min_out = SAM9G45_PLL_A_MIN_OUT_FREQ; /* 400 MHz */
clk->pll_max_out = SAM9G45_PLL_A_MAX_OUT_FREQ; /* 800 MHz */
clk->pll_mul_shift = SAM9G45_PLL_A_MUL_SHIFT;
clk->pll_mul_mask = SAM9G45_PLL_A_MUL_MASK;
clk->pll_div_shift = SAM9G45_PLL_A_DIV_SHIFT;
clk->pll_div_mask = SAM9G45_PLL_A_DIV_MASK;
clk->set_outb = at91_pmc_800mhz_plla_outb;
at91_pmc_clock_deref(clk);
}
void
cpu_initclocks(void)
{
struct at91_pmc_clock *master;
master = at91_pmc_clock_ref("mck");
pit_rate = master->hz / 16;
pit_cycle = (pit_rate + HZ/2) / HZ;
at91pit_timecounter.tc_frequency = pit_rate;
WR4(PIT_MR, 0);
while (PIT_PIV(RD4(PIT_PIVR)) != 0);
WR4(PIT_MR, (pit_cycle - 1) | PIT_IEN | PIT_EN);
tc_init(&at91pit_timecounter);
}
static int
at91_udp_attach(device_t dev)
{
struct at91_udp_softc *sc = device_get_softc(dev);
int err;
int rid;
/* setup AT9100 USB device controller interface softc */
sc->sc_dci.sc_clocks_on = &at91_udp_clocks_on;
sc->sc_dci.sc_clocks_off = &at91_udp_clocks_off;
sc->sc_dci.sc_clocks_arg = sc;
sc->sc_dci.sc_pull_up = &at91_udp_pull_up;
sc->sc_dci.sc_pull_down = &at91_udp_pull_down;
sc->sc_dci.sc_pull_arg = sc;
/* initialise some bus fields */
sc->sc_dci.sc_bus.parent = dev;
sc->sc_dci.sc_bus.devices = sc->sc_dci.sc_devices;
sc->sc_dci.sc_bus.devices_max = AT91_MAX_DEVICES;
/* get all DMA memory */
if (usb_bus_mem_alloc_all(&sc->sc_dci.sc_bus,
USB_GET_DMA_TAG(dev), NULL)) {
return (ENOMEM);
}
callout_init_mtx(&sc->sc_vbus, &sc->sc_dci.sc_bus.bus_mtx, 0);
/*
* configure VBUS input pin, enable deglitch and enable
* interrupt :
*/
at91_pio_use_gpio(VBUS_BASE, VBUS_MASK);
at91_pio_gpio_input(VBUS_BASE, VBUS_MASK);
at91_pio_gpio_set_deglitch(VBUS_BASE, VBUS_MASK, 1);
at91_pio_gpio_set_interrupt(VBUS_BASE, VBUS_MASK, 0);
/*
* configure PULLUP output pin :
*/
at91_pio_use_gpio(PULLUP_BASE, PULLUP_MASK);
at91_pio_gpio_output(PULLUP_BASE, PULLUP_MASK, 0);
at91_udp_pull_down(sc);
/* wait 10ms for pulldown to stabilise */
usb_pause_mtx(NULL, hz / 100);
sc->sc_mclk = at91_pmc_clock_ref("mck");
sc->sc_iclk = at91_pmc_clock_ref("udc_clk");
sc->sc_fclk = at91_pmc_clock_ref("udpck");
rid = MEM_RID;
sc->sc_dci.sc_io_res =
bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
if (!(sc->sc_dci.sc_io_res)) {
err = ENOMEM;
goto error;
}
sc->sc_dci.sc_io_tag = rman_get_bustag(sc->sc_dci.sc_io_res);
sc->sc_dci.sc_io_hdl = rman_get_bushandle(sc->sc_dci.sc_io_res);
sc->sc_dci.sc_io_size = rman_get_size(sc->sc_dci.sc_io_res);
rid = 0;
sc->sc_dci.sc_irq_res =
bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
if (!(sc->sc_dci.sc_irq_res)) {
goto error;
}
sc->sc_dci.sc_bus.bdev = device_add_child(dev, "usbus", -1);
if (!(sc->sc_dci.sc_bus.bdev)) {
goto error;
}
device_set_ivars(sc->sc_dci.sc_bus.bdev, &sc->sc_dci.sc_bus);
err = bus_setup_intr(dev, sc->sc_dci.sc_irq_res, INTR_TYPE_TTY | INTR_MPSAFE,
at91dci_filter_interrupt, at91dci_interrupt, sc, &sc->sc_dci.sc_intr_hdl);
if (err) {
sc->sc_dci.sc_intr_hdl = NULL;
goto error;
}
err = at91dci_init(&sc->sc_dci);
if (!err) {
err = device_probe_and_attach(sc->sc_dci.sc_bus.bdev);
}
if (err) {
goto error;
} else {
/* poll VBUS one time */
USB_BUS_LOCK(&sc->sc_dci.sc_bus);
at91_vbus_poll(sc);
USB_BUS_UNLOCK(&sc->sc_dci.sc_bus);
}
return (0);
error:
at91_udp_detach(dev);
return (ENXIO);
}
static int
ohci_atmelarm_attach(device_t dev)
{
struct at91_ohci_softc *sc = device_get_softc(dev);
int err;
int rid;
/* initialise some bus fields */
sc->sc_ohci.sc_bus.parent = dev;
sc->sc_ohci.sc_bus.devices = sc->sc_ohci.sc_devices;
sc->sc_ohci.sc_bus.devices_max = OHCI_MAX_DEVICES;
/* get all DMA memory */
if (usb_bus_mem_alloc_all(&sc->sc_ohci.sc_bus,
USB_GET_DMA_TAG(dev), &ohci_iterate_hw_softc)) {
return (ENOMEM);
}
sc->iclk = at91_pmc_clock_ref("ohci_clk");
sc->fclk = at91_pmc_clock_ref("uhpck");
sc->sc_ohci.sc_dev = dev;
rid = MEM_RID;
sc->sc_ohci.sc_io_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&rid, RF_ACTIVE);
if (!(sc->sc_ohci.sc_io_res)) {
err = ENOMEM;
goto error;
}
sc->sc_ohci.sc_io_tag = rman_get_bustag(sc->sc_ohci.sc_io_res);
sc->sc_ohci.sc_io_hdl = rman_get_bushandle(sc->sc_ohci.sc_io_res);
sc->sc_ohci.sc_io_size = rman_get_size(sc->sc_ohci.sc_io_res);
rid = 0;
sc->sc_ohci.sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
RF_ACTIVE);
if (!(sc->sc_ohci.sc_irq_res)) {
goto error;
}
sc->sc_ohci.sc_bus.bdev = device_add_child(dev, "usbus", -1);
if (!(sc->sc_ohci.sc_bus.bdev)) {
goto error;
}
device_set_ivars(sc->sc_ohci.sc_bus.bdev, &sc->sc_ohci.sc_bus);
strlcpy(sc->sc_ohci.sc_vendor, "Atmel", sizeof(sc->sc_ohci.sc_vendor));
#if (__FreeBSD_version >= 700031)
err = bus_setup_intr(dev, sc->sc_ohci.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
NULL, (driver_intr_t *)ohci_interrupt, sc, &sc->sc_ohci.sc_intr_hdl);
#else
err = bus_setup_intr(dev, sc->sc_ohci.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
(driver_intr_t *)ohci_interrupt, sc, &sc->sc_ohci.sc_intr_hdl);
#endif
if (err) {
sc->sc_ohci.sc_intr_hdl = NULL;
goto error;
}
/*
* turn on the clocks from the AT91's point of view. Keep the unit in reset.
*/
at91_pmc_clock_enable(sc->iclk);
at91_pmc_clock_enable(sc->fclk);
bus_space_write_4(sc->sc_ohci.sc_io_tag, sc->sc_ohci.sc_io_hdl,
OHCI_CONTROL, 0);
err = ohci_init(&sc->sc_ohci);
if (!err) {
err = device_probe_and_attach(sc->sc_ohci.sc_bus.bdev);
}
if (err) {
goto error;
}
return (0);
error:
ohci_atmelarm_detach(dev);
return (ENXIO);
}
static int
at91_attach(device_t dev)
{
struct at91_pmc_clock *clk;
struct at91sam9_softc *sc = device_get_softc(dev);
int i;
struct at91_softc *at91sc = device_get_softc(device_get_parent(dev));
sc->sc_st = at91sc->sc_st;
sc->sc_sh = at91sc->sc_sh;
sc->dev = dev;
/*
* XXX These values work for the RM9200, SAM926[01], and SAM9260
* will have to fix this when we want to support anything else. XXX
*/
if (bus_space_subregion(sc->sc_st, sc->sc_sh, AT91SAM9260_SYS_BASE,
AT91SAM9260_SYS_SIZE, &sc->sc_sys_sh) != 0)
panic("Enable to map system registers");
if (bus_space_subregion(sc->sc_st, sc->sc_sh, AT91SAM9260_DBGU_BASE,
AT91SAM9260_DBGU_SIZE, &sc->sc_dbg_sh) != 0)
panic("Enable to map DBGU registers");
if (bus_space_subregion(sc->sc_st, sc->sc_sh, AT91SAM9260_AIC_BASE,
AT91SAM9260_AIC_SIZE, &sc->sc_aic_sh) != 0)
panic("Enable to map system registers");
/* XXX Hack to tell atmelarm about the AIC */
at91sc->sc_aic_sh = sc->sc_aic_sh;
at91sc->sc_irq_system = AT91SAM9260_IRQ_SYSTEM;
for (i = 0; i < 32; i++) {
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_SVR +
i * 4, i);
/* Priority. */
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_SMR + i * 4,
at91_irq_prio[i]);
if (i < 8)
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_EOICR,
1);
}
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_SPU, 32);
/* No debug. */
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_DCR, 0);
/* Disable and clear all interrupts. */
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_IDCR, 0xffffffff);
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_ICCR, 0xffffffff);
/* Disable all interrupts for DBGU */
bus_space_write_4(sc->sc_st, sc->sc_dbg_sh, 0x0c, 0xffffffff);
if (bus_space_subregion(sc->sc_st, sc->sc_sh,
AT91SAM9260_MATRIX_BASE, AT91SAM9260_MATRIX_SIZE,
&sc->sc_matrix_sh) != 0)
panic("Enable to map matrix registers");
/* activate NAND*/
i = bus_space_read_4(sc->sc_st, sc->sc_matrix_sh,
AT91SAM9260_EBICSA);
bus_space_write_4(sc->sc_st, sc->sc_matrix_sh,
AT91SAM9260_EBICSA,
i | AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA);
/* Update USB device port clock info */
clk = at91_pmc_clock_ref("udpck");
clk->pmc_mask = PMC_SCER_UDP_SAM9;
at91_pmc_clock_deref(clk);
/* Update USB host port clock info */
clk = at91_pmc_clock_ref("uhpck");
clk->pmc_mask = PMC_SCER_UHP_SAM9;
at91_pmc_clock_deref(clk);
/* Each SOC has different PLL contraints */
clk = at91_pmc_clock_ref("plla");
clk->pll_min_in = SAM9260_PLL_A_MIN_IN_FREQ; /* 1 MHz */
clk->pll_max_in = SAM9260_PLL_A_MAX_IN_FREQ; /* 32 MHz */
clk->pll_min_out = SAM9260_PLL_A_MIN_OUT_FREQ; /* 80 MHz */
clk->pll_max_out = SAM9260_PLL_A_MAX_OUT_FREQ; /* 240 MHz */
clk->pll_mul_shift = SAM9260_PLL_A_MUL_SHIFT;
clk->pll_mul_mask = SAM9260_PLL_A_MUL_MASK;
clk->pll_div_shift = SAM9260_PLL_A_DIV_SHIFT;
clk->pll_div_mask = SAM9260_PLL_A_DIV_MASK;
clk->set_outb = at91_pll_outa;
at91_pmc_clock_deref(clk);
/*
* Fudge MAX pll in frequence down below 3.0 Mhz to ensure
* PMC alogrithm choose the divisor that causes the input clock
* to be near the optimal 2 Mhz per datasheet. We know
* we are going to be using this for the USB clock at 96 Mhz.
* Causes no extra frequency deviation for all recomended crystal values.
*/
clk = at91_pmc_clock_ref("pllb");
clk->pll_min_in = SAM9260_PLL_B_MIN_IN_FREQ; /* 1 MHz */
clk->pll_max_in = SAM9260_PLL_B_MAX_IN_FREQ; /* 5 MHz */
clk->pll_max_in = 2999999; /* ~3 MHz */
clk->pll_min_out = SAM9260_PLL_B_MIN_OUT_FREQ; /* 70 MHz */
clk->pll_max_out = SAM9260_PLL_B_MAX_OUT_FREQ; /* 130 MHz */
clk->pll_mul_shift = SAM9260_PLL_B_MUL_SHIFT;
clk->pll_mul_mask = SAM9260_PLL_B_MUL_MASK;
clk->pll_div_shift = SAM9260_PLL_B_DIV_SHIFT;
clk->pll_div_mask = SAM9260_PLL_B_DIV_MASK;
clk->set_outb = at91_pll_outb;
at91_pmc_clock_deref(clk);
return (0);
}
static int
at91_attach(device_t dev)
{
struct at91_pmc_clock *clk;
struct at91sam9_softc *sc = device_get_softc(dev);
int i;
struct at91_softc *at91sc = device_get_softc(device_get_parent(dev));
sc->sc_st = at91sc->sc_st;
sc->sc_sh = at91sc->sc_sh;
sc->dev = dev;
/*
* XXX These values work for the RM9200, SAM926[01], and SAM9G20
* will have to fix this when we want to support anything else. XXX
*/
if (bus_space_subregion(sc->sc_st, sc->sc_sh, AT91SAM9G20_SYS_BASE,
AT91SAM9G20_SYS_SIZE, &sc->sc_sys_sh) != 0)
panic("Enable to map system registers");
if (bus_space_subregion(sc->sc_st, sc->sc_sh, AT91SAM9G20_DBGU_BASE,
AT91SAM9G20_DBGU_SIZE, &sc->sc_dbg_sh) != 0)
panic("Enable to map DBGU registers");
if (bus_space_subregion(sc->sc_st, sc->sc_sh, AT91SAM9G20_AIC_BASE,
AT91SAM9G20_AIC_SIZE, &sc->sc_aic_sh) != 0)
panic("Enable to map system registers");
/* XXX Hack to tell atmelarm about the AIC */
at91sc->sc_aic_sh = sc->sc_aic_sh;
at91sc->sc_irq_system = AT91SAM9G20_IRQ_SYSTEM;
for (i = 0; i < 32; i++) {
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_SVR +
i * 4, i);
/* Priority. */
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_SMR + i * 4,
at91_irq_prio[i]);
if (i < 8)
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_EOICR,
1);
}
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_SPU, 32);
/* No debug. */
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_DCR, 0);
/* Disable and clear all interrupts. */
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_IDCR, 0xffffffff);
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_ICCR, 0xffffffff);
/* Disable all interrupts for DBGU */
bus_space_write_4(sc->sc_st, sc->sc_dbg_sh, 0x0c, 0xffffffff);
if (bus_space_subregion(sc->sc_st, sc->sc_sh,
AT91SAM9G20_MATRIX_BASE, AT91SAM9G20_MATRIX_SIZE,
&sc->sc_matrix_sh) != 0)
panic("Enable to map matrix registers");
/* activate NAND*/
i = bus_space_read_4(sc->sc_st, sc->sc_matrix_sh,
AT91SAM9G20_EBICSA);
bus_space_write_4(sc->sc_st, sc->sc_matrix_sh,
AT91SAM9G20_EBICSA,
i | AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA);
/* Update USB device port clock info */
clk = at91_pmc_clock_ref("udpck");
clk->pmc_mask = PMC_SCER_UDP_SAM9;
at91_pmc_clock_deref(clk);
/* Update USB host port clock info */
clk = at91_pmc_clock_ref("uhpck");
clk->pmc_mask = PMC_SCER_UHP_SAM9;
at91_pmc_clock_deref(clk);
/* Each SOC has different PLL contraints */
clk = at91_pmc_clock_ref("plla");
clk->pll_min_in = SAM9G20_PLL_A_MIN_IN_FREQ; /* 2 MHz */
clk->pll_max_in = SAM9G20_PLL_A_MAX_IN_FREQ; /* 32 MHz */
clk->pll_min_out = SAM9G20_PLL_A_MIN_OUT_FREQ; /* 400 MHz */
clk->pll_max_out = SAM9G20_PLL_A_MAX_OUT_FREQ; /* 800 MHz */
clk->pll_mul_shift = SAM9G20_PLL_A_MUL_SHIFT;
clk->pll_mul_mask = SAM9G20_PLL_A_MUL_MASK;
clk->pll_div_shift = SAM9G20_PLL_A_DIV_SHIFT;
clk->pll_div_mask = SAM9G20_PLL_A_DIV_MASK;
clk->set_outb = at91_pll_outa;
at91_pmc_clock_deref(clk);
clk = at91_pmc_clock_ref("pllb");
clk->pll_min_in = SAM9G20_PLL_B_MIN_IN_FREQ; /* 2 MHz */
clk->pll_max_in = SAM9G20_PLL_B_MAX_IN_FREQ; /* 32 MHz */
clk->pll_min_out = SAM9G20_PLL_B_MIN_OUT_FREQ; /* 30 MHz */
clk->pll_max_out = SAM9G20_PLL_B_MAX_OUT_FREQ; /* 100 MHz */
clk->pll_mul_shift = SAM9G20_PLL_B_MUL_SHIFT;
clk->pll_mul_mask = SAM9G20_PLL_B_MUL_MASK;
clk->pll_div_shift = SAM9G20_PLL_B_DIV_SHIFT;
clk->pll_div_mask = SAM9G20_PLL_B_DIV_MASK;
clk->set_outb = at91_pll_outb;
at91_pmc_clock_deref(clk);
return (0);
}
static int
at91_attach(device_t dev)
{
struct at91_pmc_clock *clk;
struct at91rm92_softc *sc = device_get_softc(dev);
int i;
struct at91_softc *at91sc = device_get_softc(device_get_parent(dev));
sc->sc_st = at91sc->sc_st;
sc->sc_sh = at91sc->sc_sh;
sc->dev = dev;
if (bus_space_subregion(sc->sc_st, sc->sc_sh, AT91RM92_SYS_BASE,
AT91RM92_SYS_SIZE, &sc->sc_sys_sh) != 0)
panic("Enable to map system registers");
if (bus_space_subregion(sc->sc_st, sc->sc_sh, AT91RM92_DBGU_BASE,
AT91RM92_DBGU_SIZE, &sc->sc_dbg_sh) != 0)
panic("Enable to map DBGU registers");
if (bus_space_subregion(sc->sc_st, sc->sc_sh, AT91RM92_AIC_BASE,
AT91RM92_AIC_SIZE, &sc->sc_aic_sh) != 0)
panic("Enable to map system registers");
/* XXX Hack to tell atmelarm about the AIC */
at91sc->sc_aic_sh = sc->sc_aic_sh;
at91sc->sc_irq_system = AT91RM92_IRQ_SYSTEM;
for (i = 0; i < 32; i++) {
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_SVR +
i * 4, i);
/* Priority. */
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_SMR + i * 4,
at91_irq_prio[i]);
if (i < 8)
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_EOICR,
1);
}
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_SPU, 32);
/* No debug. */
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_DCR, 0);
/* Disable and clear all interrupts. */
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_IDCR, 0xffffffff);
bus_space_write_4(sc->sc_st, sc->sc_aic_sh, IC_ICCR, 0xffffffff);
/* Disable all interrupts for RTC (0xe24 == RTC_IDR) */
bus_space_write_4(sc->sc_st, sc->sc_sys_sh, 0xe24, 0xffffffff);
/* Disable all interrupts for the SDRAM controller */
bus_space_write_4(sc->sc_st, sc->sc_sys_sh, 0xfa8, 0xffffffff);
/* Disable all interrupts for DBGU */
bus_space_write_4(sc->sc_st, sc->sc_dbg_sh, 0x0c, 0xffffffff);
/* Update USB device port clock info */
clk = at91_pmc_clock_ref("udpck");
clk->pmc_mask = PMC_SCER_UDP;
at91_pmc_clock_deref(clk);
/* Update USB host port clock info */
clk = at91_pmc_clock_ref("uhpck");
clk->pmc_mask = PMC_SCER_UHP;
at91_pmc_clock_deref(clk);
/* Each SOC has different PLL contraints */
clk = at91_pmc_clock_ref("plla");
clk->pll_min_in = RM9200_PLL_A_MIN_IN_FREQ; /* 1 MHz */
clk->pll_max_in = RM9200_PLL_A_MAX_IN_FREQ; /* 32 MHz */
clk->pll_min_out = RM9200_PLL_A_MIN_OUT_FREQ; /* 80 MHz */
clk->pll_max_out = RM9200_PLL_A_MAX_OUT_FREQ; /* 180 MHz */
clk->pll_mul_shift = RM9200_PLL_A_MUL_SHIFT;
clk->pll_mul_mask = RM9200_PLL_A_MUL_MASK;
clk->pll_div_shift = RM9200_PLL_A_DIV_SHIFT;
clk->pll_div_mask = RM9200_PLL_A_DIV_MASK;
clk->set_outb = at91_pll_outb;
at91_pmc_clock_deref(clk);
clk = at91_pmc_clock_ref("pllb");
clk->pll_min_in = RM9200_PLL_B_MIN_IN_FREQ; /* 100 KHz */
clk->pll_max_in = RM9200_PLL_B_MAX_IN_FREQ; /* 32 MHz */
clk->pll_min_out = RM9200_PLL_B_MIN_OUT_FREQ; /* 30 MHz */
clk->pll_max_out = RM9200_PLL_B_MAX_OUT_FREQ; /* 240 MHz */
clk->pll_mul_shift = RM9200_PLL_B_MUL_SHIFT;
clk->pll_mul_mask = RM9200_PLL_B_MUL_MASK;
clk->pll_div_shift = RM9200_PLL_B_DIV_SHIFT;
clk->pll_div_mask = RM9200_PLL_B_DIV_MASK;
clk->set_outb = at91_pll_outb;
at91_pmc_clock_deref(clk);
return (0);
}