167 lines
3.8 KiB
C
167 lines
3.8 KiB
C
/* $Id: at91sam9261bus.c,v 1.2 2008/07/03 01:15:38 matt Exp $ */
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: at91sam9261bus.c,v 1.2 2008/07/03 01:15:38 matt Exp $");
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/time.h>
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#include <sys/device.h>
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#include <uvm/uvm_extern.h>
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#include <arm/at91/at91sam9261busvar.h>
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const struct at91bus_machdep at91sam9261bus = {
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at91sam9261bus_init,
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at91sam9261bus_attach_cn,
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at91sam9261bus_devmap,
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/* clocking support: */
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at91sam9261bus_peripheral_clock,
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/* PIO support: */
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at91sam9261bus_pio_port,
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at91sam9261bus_gpio_mask,
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/* interrupt handling support: */
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at91sam9261bus_intr_init,
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at91sam9261bus_intr_establish,
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at91sam9261bus_intr_disestablish,
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at91sam9261bus_intr_poll,
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at91sam9261bus_intr_dispatch,
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/* configuration */
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at91sam9261bus_peripheral_name,
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at91sam9261bus_search_peripherals
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};
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void at91sam9261bus_init(struct at91bus_clocks *clocks)
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{
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pmap_devmap_register(at91_devmap());
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at91pmc_get_clocks(clocks);
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}
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const struct pmap_devmap *at91sam9261bus_devmap(void)
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{
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static const struct pmap_devmap devmap[] = {
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{
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AT91SAM9261_APB_VBASE,
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AT91SAM9261_APB_HWBASE,
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AT91SAM9261_APB_SIZE,
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VM_PROT_READ | VM_PROT_WRITE,
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PTE_NOCACHE
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},
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{
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0,
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0,
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0,
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0,
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0
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}
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};
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return devmap;
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}
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void at91sam9261bus_peripheral_clock(int pid, int enable)
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{
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switch (pid) {
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case PID_UHP:
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if (enable)
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PMCREG(PMC_SCER) = PMC_SCSR_UHP;
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else
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PMCREG(PMC_SCDR) = PMC_SCSR_UHP;
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break;
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}
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at91pmc_peripheral_clock(pid, enable);
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}
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at91pio_port at91sam9261bus_pio_port(int pid)
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{
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switch (pid) {
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case PID_PIOA: return AT91_PIOA;
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case PID_PIOB: return AT91_PIOB;
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case PID_PIOC: return AT91_PIOC;
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default: panic("%s: pid %d not valid", __FUNCTION__, pid);
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}
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}
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uint32_t at91sam9261bus_gpio_mask(int pid)
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{
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return 0xFFFFFFFFUL;
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}
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const char *at91sam9261bus_peripheral_name(int pid)
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{
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switch (pid) {
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case PID_FIQ: return "FIQ";
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case PID_SYSIRQ:return "SYS";
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case PID_PIOA: return "PIOA";
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case PID_PIOB: return "PIOB";
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case PID_PIOC: return "PIOC";
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case PID_US0: return "USART0";
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case PID_US1: return "USART1";
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case PID_US2: return "USART2";
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case PID_MCI: return "MCI";
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case PID_UDP: return "UDP";
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case PID_TWI: return "TWI";
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case PID_SPI0: return "SPI0";
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case PID_SPI1: return "SPI1";
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case PID_SSC0: return "SSC0";
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case PID_SSC1: return "SSC1";
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case PID_SSC2: return "SSC2";
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case PID_TC0: return "TC0";
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case PID_TC1: return "TC1";
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case PID_TC2: return "TC2";
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case PID_UHP: return "UHP";
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case PID_LCDC: return "LCDC";
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case PID_IRQ0: return "IRQ0";
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case PID_IRQ1: return "IRQ1";
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case PID_IRQ2: return "IRQ2";
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default: panic("%s: invalid pid %d", __FUNCTION__, pid);
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}
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}
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void at91sam9261bus_search_peripherals(device_t self,
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device_t (*found_func)(device_t, bus_addr_t, int))
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{
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static const struct {
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bus_addr_t addr;
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int pid;
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} table[] = {
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{AT91SAM9261_PMC_BASE, -1},
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{AT91SAM9261_AIC_BASE, -1},
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{AT91SAM9261_PIT_BASE, PID_SYSIRQ},
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{AT91SAM9261_TC0_BASE, PID_TC0},
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{AT91SAM9261_TC1_BASE, PID_TC1},
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{AT91SAM9261_TC2_BASE, PID_TC2},
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{AT91SAM9261_DBGU_BASE, PID_SYSIRQ},
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{AT91SAM9261_PIOA_BASE, PID_PIOA},
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{AT91SAM9261_PIOB_BASE, PID_PIOB},
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{AT91SAM9261_PIOC_BASE, PID_PIOC},
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{AT91SAM9261_USART0_BASE, PID_US0},
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{AT91SAM9261_USART1_BASE, PID_US1},
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{AT91SAM9261_USART2_BASE, PID_US2},
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{AT91SAM9261_SSC0_BASE, PID_SSC0},
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{AT91SAM9261_SSC1_BASE, PID_SSC1},
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{AT91SAM9261_SSC2_BASE, PID_SSC2},
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{AT91SAM9261_TWI_BASE, PID_TWI},
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{AT91SAM9261_SPI0_BASE, PID_SPI0},
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{AT91SAM9261_SPI1_BASE, PID_SPI1},
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{AT91SAM9261_UHP_BASE, PID_UHP},
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{AT91SAM9261_LCD_BASE, PID_LCDC},
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{AT91SAM9261_UDP_BASE, PID_UDP},
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{AT91SAM9261_MCI_BASE, PID_MCI},
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{0, 0}
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};
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int i;
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for (i = 0; table[i].addr; i++)
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(*found_func)(self, table[i].addr, table[i].pid);
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}
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