int __cpuinit arch_host_irq_init(void)
{
int rc;
physical_addr_t intc_pa;
struct vmm_devtree_node *node;
node = vmm_devtree_find_compatible(NULL, NULL, "ti,omap2-intc");
if (!node) {
return VMM_ENODEV;
}
rc = vmm_devtree_regaddr(node, &intc_pa, 0);
if (rc) {
return rc;
}
return intc_init(intc_pa, OMAP3_MPU_INTC_NRIRQ);
}
static int rbd_driver_probe(struct vmm_device *dev,
const struct vmm_devtree_nodeid *devid)
{
int rc;
physical_addr_t pa;
physical_size_t sz;
rc = vmm_devtree_regaddr(dev->node, &pa, 0);
if (rc) {
return rc;
}
rc = vmm_devtree_regsize(dev->node, &sz, 0);
if (rc) {
return rc;
}
dev->priv = __rbd_create(dev, dev->node->name, pa, sz);
if (!dev->priv) {
return VMM_EFAIL;
}
return VMM_OK;
}
static int sram_probe(struct vmm_device *dev,
const struct vmm_devtree_nodeid *nodeid)
{
void *virt_base = NULL;
struct sram_dev *sram = NULL;
physical_addr_t start = 0;
virtual_size_t size = 0;
int ret = VMM_OK;
ret = vmm_devtree_regaddr(dev->of_node, &start, 0);
if (VMM_OK != ret) {
vmm_printf("%s: Failed to get device base\n", dev->name);
return ret;
}
ret = vmm_devtree_regsize(dev->of_node, &size, 0);
if (VMM_OK != ret) {
vmm_printf("%s: Failed to get device size\n", dev->name);
goto err_out;
}
virt_base = (void *)vmm_host_iomap(start, size);
if (NULL == virt_base) {
vmm_printf("%s: Failed to get remap memory\n", dev->name);
ret = VMM_ENOMEM;
goto err_out;
}
sram = vmm_devm_zalloc(dev, sizeof(*sram));
if (!sram) {
vmm_printf("%s: Failed to allocate structure\n", dev->name);
ret = VMM_ENOMEM;
goto err_out;
}
sram->clk = devm_clk_get(dev, NULL);
if (VMM_IS_ERR(sram->clk))
sram->clk = NULL;
else
clk_prepare_enable(sram->clk);
sram->pool = devm_gen_pool_create(dev, SRAM_GRANULARITY_LOG);
if (!sram->pool) {
vmm_printf("%s: Failed to create memory pool\n", dev->name);
ret = VMM_ENOMEM;
}
ret = gen_pool_add_virt(sram->pool, (unsigned long)virt_base,
start, size);
if (ret < 0) {
vmm_printf("%s: Failed to add memory chunk\n", dev->name);
goto err_out;
}
vmm_devdrv_set_data(dev, sram);
vmm_printf("%s: SRAM pool: %ld KiB @ 0x%p\n", dev->name, size / 1024,
virt_base);
return 0;
err_out:
if (sram->pool)
gen_pool_destroy(sram->pool);
#if 0
if (sram->clk)
clk_disable_unprepare(sram->clk);
#endif /* 0 */
if (sram)
vmm_free(sram);
sram = NULL;
if (virt_base)
vmm_host_iounmap((virtual_addr_t)virt_base);
virt_base = NULL;
return ret;
}
static int mmci_driver_probe(struct vmm_device *dev,
const struct vmm_devtree_nodeid *devid)
{
int rc;
u32 sdi;
virtual_addr_t base;
physical_addr_t basepa;
struct mmc_host *mmc;
struct mmci_host *host;
mmc = mmc_alloc_host(sizeof(struct mmci_host), dev);
if (!mmc) {
rc = VMM_ENOMEM;
goto free_nothing;
}
host = mmc_priv(mmc);
rc = vmm_devtree_regmap(dev->node, &base, 0);
if (rc) {
goto free_host;
}
host->base = (struct sdi_registers *)base;
rc = vmm_devtree_irq_get(dev->node, &host->irq0, 0);
if (rc) {
goto free_reg;
}
if ((rc = vmm_host_irq_register(host->irq0, dev->name,
mmci_cmd_irq_handler, mmc))) {
goto free_reg;
}
rc = vmm_devtree_irq_get(dev->node, &host->irq1, 1);
if (!rc) {
if ((rc = vmm_host_irq_register(host->irq1, dev->name,
mmci_pio_irq_handler, mmc))) {
goto free_irq0;
}
host->singleirq = 0;
} else {
host->singleirq = 1;
}
/* Retrive matching data */
host->pwr_init = ((const u32 *)devid->data)[0];
host->clkdiv_init = ((const u32 *)devid->data)[1];
host->voltages = ((const u32 *)devid->data)[2];
host->caps = ((const u32 *)devid->data)[3];
host->clock_in = ((const u32 *)devid->data)[4];
host->clock_min = ((const u32 *)devid->data)[5];
host->clock_max = ((const u32 *)devid->data)[6];
host->b_max = ((const u32 *)devid->data)[7];
host->version2 = ((const u32 *)devid->data)[8];
/* Initialize power and clock divider */
vmm_writel(host->pwr_init, &host->base->power);
vmm_writel(host->clkdiv_init, &host->base->clock);
vmm_udelay(CLK_CHANGE_DELAY);
/* Disable interrupts */
sdi = vmm_readl(&host->base->mask0) & ~SDI_MASK0_MASK;
vmm_writel(sdi, &host->base->mask0);
/* Setup mmc host configuration */
mmc->caps = host->caps;
mmc->voltages = host->voltages;
mmc->f_min = host->clock_min;
mmc->f_max = host->clock_max;
mmc->b_max = host->b_max;
/* Setup mmc host operations */
mmc->ops.send_cmd = mmci_request;
mmc->ops.set_ios = mmci_set_ios;
mmc->ops.init_card = mmci_init_card;
mmc->ops.get_cd = NULL;
mmc->ops.get_wp = NULL;
rc = mmc_add_host(mmc);
if (rc) {
goto free_irq1;
}
dev->priv = mmc;
vmm_devtree_regaddr(dev->node, &basepa, 0);
vmm_printf("%s: PL%03x manf %x rev%u at 0x%08llx irq %d,%d (pio)\n",
dev->name, amba_part(dev), amba_manf(dev),
amba_rev(dev), (unsigned long long)basepa,
host->irq0, host->irq1);
return VMM_OK;
free_irq1:
if (!host->singleirq) {
vmm_host_irq_unregister(host->irq1, mmc);
}
free_irq0:
vmm_host_irq_unregister(host->irq0, mmc);
free_reg:
vmm_devtree_regunmap(dev->node, (virtual_addr_t)host->base, 0);
free_host:
mmc_free_host(mmc);
free_nothing:
return rc;
}
static int uart_8250_driver_probe(struct vmm_device *dev,
const struct vmm_devtree_nodeid *devid)
{
int rc;
struct uart_8250_port *port;
physical_addr_t ioport;
const char *aval;
port = vmm_zalloc(sizeof(struct uart_8250_port));
if(!port) {
rc = VMM_ENOMEM;
goto free_nothing;
}
if (vmm_devtree_read_string(dev->node,
VMM_DEVTREE_ADDRESS_TYPE_ATTR_NAME,
&aval)) {
aval = NULL;
}
if (aval && !strcmp(aval, VMM_DEVTREE_ADDRESS_TYPE_VAL_IO)) {
port->use_ioport = TRUE;
} else {
port->use_ioport = FALSE;
}
if (port->use_ioport) {
rc = vmm_devtree_regaddr(dev->node, &ioport, 0);
if (rc) {
goto free_port;
}
port->base = ioport;
} else {
rc = vmm_devtree_request_regmap(dev->node, &port->base, 0,
"UART 8250");
if (rc) {
goto free_port;
}
}
if (vmm_devtree_read_u32(dev->node, "reg-shift",
&port->reg_shift)) {
port->reg_shift = 0;
}
if (vmm_devtree_read_u32(dev->node, "reg-io-width",
&port->reg_width)) {
port->reg_width = 1;
}
if (vmm_devtree_read_u32(dev->node, "baudrate",
&port->baudrate)) {
port->baudrate = 115200;
}
rc = vmm_devtree_clock_frequency(dev->node, &port->input_clock);
if (rc) {
goto free_reg;
}
/* Call low-level init function
* Note: low-level init will make sure that
* interrupts are disabled in IER register.
*/
uart_8250_lowlevel_init(port);
/* Setup interrupt handler */
port->irq = vmm_devtree_irq_parse_map(dev->node, 0);
if (!port->irq) {
rc = VMM_ENODEV;
goto free_reg;
}
if ((rc = vmm_host_irq_register(port->irq, dev->name,
uart_8250_irq_handler, port))) {
goto free_reg;
}
/* Create Serial Port */
port->p = serial_create(dev, 256, uart_8250_tx, port);
if (VMM_IS_ERR_OR_NULL(port->p)) {
rc = VMM_PTR_ERR(port->p);
goto free_irq;
}
/* Save port pointer */
dev->priv = port;
/* Unmask Rx interrupt */
port->ier |= (UART_IER_RLSI | UART_IER_RDI);
uart_8250_out(port, UART_IER_OFFSET, port->ier);
return VMM_OK;
free_irq:
vmm_host_irq_unregister(port->irq, port);
free_reg:
if (!port->use_ioport) {
vmm_devtree_regunmap_release(dev->node, port->base, 0);
}
free_port:
vmm_free(port);
free_nothing:
return rc;
}