diff options
Diffstat (limited to 'sys/arm/at91/at91sam9.c')
| -rw-r--r-- | sys/arm/at91/at91sam9.c | 717 |
1 files changed, 0 insertions, 717 deletions
diff --git a/sys/arm/at91/at91sam9.c b/sys/arm/at91/at91sam9.c deleted file mode 100644 index a6510ea..0000000 --- a/sys/arm/at91/at91sam9.c +++ /dev/null @@ -1,717 +0,0 @@ -/*- - * Copyright (c) 2005 Olivier Houchard. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/bus.h> -#include <sys/kernel.h> -#include <sys/malloc.h> -#include <sys/module.h> - -#include <vm/vm.h> -#include <vm/vm_kern.h> -#include <vm/pmap.h> -#include <vm/vm_page.h> -#include <vm/vm_extern.h> - -#define _ARM32_BUS_DMA_PRIVATE -#include <machine/bus.h> -#include <machine/intr.h> -#include <arm/at91/at91_aicreg.h> -#include <arm/at91/at91sam9g20reg.h> -#include <arm/at91/at91var.h> - -static struct at91_softc *at91_softc; - -static void at91_eoi(void *); - -uint32_t at91_master_clock = AT91C_MASTER_CLOCK; - -static int -at91_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int flags, - bus_space_handle_t *bshp) -{ - vm_paddr_t pa, endpa; - - pa = trunc_page(bpa); - if (pa >= 0xfff00000) { - *bshp = pa - 0xf0000000 + 0xd0000000; - return (0); - } - if (pa >= 0xdff00000) - return (0); - endpa = round_page(bpa + size); - - *bshp = (vm_offset_t)pmap_mapdev(pa, endpa - pa); - - return (0); -} - -static void -at91_bs_unmap(void *t, bus_space_handle_t h, bus_size_t size) -{ - vm_offset_t va, endva; - - va = trunc_page((vm_offset_t)t); - endva = va + round_page(size); - - /* Free the kernel virtual mapping. */ - kmem_free(kernel_map, va, endva - va); -} - -static int -at91_bs_subregion(void *t, bus_space_handle_t bsh, bus_size_t offset, - bus_size_t size, bus_space_handle_t *nbshp) -{ - - *nbshp = bsh + offset; - return (0); -} - -static void -at91_barrier(void *t, bus_space_handle_t bsh, bus_size_t size, bus_size_t b, - int a) -{ -} - -bs_protos(generic); -bs_protos(generic_armv4); - -struct bus_space at91_bs_tag = { - /* cookie */ - (void *) 0, - - /* mapping/unmapping */ - at91_bs_map, - at91_bs_unmap, - at91_bs_subregion, - - /* allocation/deallocation */ - NULL, - NULL, - - /* barrier */ - at91_barrier, - - /* read (single) */ - generic_bs_r_1, - generic_armv4_bs_r_2, - generic_bs_r_4, - NULL, - - /* read multiple */ - generic_bs_rm_1, - generic_armv4_bs_rm_2, - generic_bs_rm_4, - NULL, - - /* read region */ - generic_bs_rr_1, - generic_armv4_bs_rr_2, - generic_bs_rr_4, - NULL, - - /* write (single) */ - generic_bs_w_1, - generic_armv4_bs_w_2, - generic_bs_w_4, - NULL, - - /* write multiple */ - generic_bs_wm_1, - generic_armv4_bs_wm_2, - generic_bs_wm_4, - NULL, - - /* write region */ - NULL, - generic_armv4_bs_wr_2, - generic_bs_wr_4, - NULL, - - /* set multiple */ - NULL, - NULL, - NULL, - NULL, - - /* set region */ - NULL, - generic_armv4_bs_sr_2, - generic_bs_sr_4, - NULL, - - /* copy */ - NULL, - generic_armv4_bs_c_2, - NULL, - NULL, - - /* read (single) stream */ - generic_bs_r_1, - generic_armv4_bs_r_2, - generic_bs_r_4, - NULL, - - /* read multiple stream */ - generic_bs_rm_1, - generic_armv4_bs_rm_2, - generic_bs_rm_4, - NULL, - - /* read region stream */ - generic_bs_rr_1, - generic_armv4_bs_rr_2, - generic_bs_rr_4, - NULL, - - /* write (single) stream */ - generic_bs_w_1, - generic_armv4_bs_w_2, - generic_bs_w_4, - NULL, - - /* write multiple stream */ - generic_bs_wm_1, - generic_armv4_bs_wm_2, - generic_bs_wm_4, - NULL, - - /* write region stream */ - NULL, - generic_armv4_bs_wr_2, - generic_bs_wr_4, - NULL, -}; - -static int -at91_probe(device_t dev) -{ - device_set_desc(dev, "AT91 device bus"); - arm_post_filter = at91_eoi; - return (0); -} - -static void -at91_identify(driver_t *drv, device_t parent) -{ - - BUS_ADD_CHILD(parent, 0, "atmelarm", 0); -} - -struct arm32_dma_range * -bus_dma_get_range(void) -{ - - return (NULL); -} - -int -bus_dma_get_range_nb(void) -{ - return (0); -} - -extern void irq_entry(void); - -static void -at91_add_child(device_t dev, int prio, const char *name, int unit, - bus_addr_t addr, bus_size_t size, int irq0, int irq1, int irq2) -{ - device_t kid; - struct at91_ivar *ivar; - - kid = device_add_child_ordered(dev, prio, name, unit); - if (kid == NULL) { - printf("Can't add child %s%d ordered\n", name, unit); - return; - } - ivar = malloc(sizeof(*ivar), M_DEVBUF, M_NOWAIT | M_ZERO); - if (ivar == NULL) { - device_delete_child(dev, kid); - printf("Can't add alloc ivar\n"); - return; - } - device_set_ivars(kid, ivar); - resource_list_init(&ivar->resources); - if (irq0 != -1) - bus_set_resource(kid, SYS_RES_IRQ, 0, irq0, 1); - if (irq1 != 0) - bus_set_resource(kid, SYS_RES_IRQ, 1, irq1, 1); - if (irq2 != 0) - bus_set_resource(kid, SYS_RES_IRQ, 2, irq2, 1); - if (addr != 0) - bus_set_resource(kid, SYS_RES_MEMORY, 0, addr, size); -} - -struct cpu_devs -{ - const char *name; - int unit; - bus_addr_t mem_base; - bus_size_t mem_len; - int irq0; - int irq1; - int irq2; -}; - -struct cpu_devs at91sam9_devs[] = -{ - { - "at91_pit", 0, - AT91SAM9G20_BASE + AT91SAM9G20_PIT_BASE, AT91SAM9G20_PIT_SIZE, - AT91SAM9G20_IRQ_SYSTEM - }, - { - "at91_wdt", 0, - AT91SAM9G20_BASE + AT91SAM9G20_WDT_BASE, AT91SAM9G20_WDT_SIZE, - AT91SAM9G20_IRQ_SYSTEM - }, - { - "at91_pmc", 0, - AT91SAM9G20_BASE + AT91SAM9G20_PMC_BASE, AT91SAM9G20_PMC_SIZE, - AT91SAM9G20_IRQ_SYSTEM - }, - { - "at91_pio", 0, - AT91SAM9G20_BASE + AT91SAM9G20_PIOA_BASE, AT91SAM9G20_PIO_SIZE, - AT91SAM9G20_IRQ_SYSTEM - }, - { - "at91_pio", 1, - AT91SAM9G20_BASE + AT91SAM9G20_PIOB_BASE, AT91SAM9G20_PIO_SIZE, - AT91SAM9G20_IRQ_SYSTEM - }, - { - "at91_pio", 2, - AT91SAM9G20_BASE + AT91SAM9G20_PIOC_BASE, AT91SAM9G20_PIO_SIZE, - AT91SAM9G20_IRQ_SYSTEM - }, - { - "uart", 0, - AT91SAM9G20_BASE + AT91SAM9G20_DBGU_BASE, AT91SAM9G20_DBGU_SIZE, - AT91SAM9G20_IRQ_SYSTEM - }, - { - "uart", 1, - AT91SAM9G20_BASE + AT91SAM9G20_USART0_BASE, AT91SAM9G20_USART_SIZE, - AT91SAM9G20_IRQ_USART0 - }, - { - "uart", 2, - AT91SAM9G20_BASE + AT91SAM9G20_USART1_BASE, AT91SAM9G20_USART_SIZE, - AT91SAM9G20_IRQ_USART1 - }, - { - "uart", 3, - AT91SAM9G20_BASE + AT91SAM9G20_USART2_BASE, AT91SAM9G20_USART_SIZE, - AT91SAM9G20_IRQ_USART2 - }, - { - "spi", 0, - AT91SAM9G20_BASE + AT91SAM9G20_SPI0_BASE, AT91SAM9G20_SPI0_SIZE, - AT91SAM9G20_IRQ_SPI0 - }, - { - "spi", 1, - AT91SAM9G20_BASE + AT91SAM9G20_SPI1_BASE, AT91SAM9G20_SPI1_SIZE, - AT91SAM9G20_IRQ_SPI1 - }, - { - "ohci", 0, - AT91SAM9G20_OHCI_BASE, AT91SAM9G20_OHCI_SIZE, - AT91SAM9G20_IRQ_UHP - }, - { - "macb", 0, - AT91SAM9G20_BASE + AT91SAM9G20_EMAC_BASE, AT91SAM9G20_EMAC_SIZE, - AT91SAM9G20_IRQ_EMAC - }, - { - "nand", 0, - AT91SAM9G20_NAND_BASE, AT91SAM9G20_NAND_SIZE, - -1 - }, - { 0, 0, 0, 0, 0 } -}; - -static void -at91_cpu_add_builtin_children(device_t dev, struct at91_softc *sc) -{ - int i; - struct cpu_devs *walker; - - // XXX should look at the device id in the DBGU register and - // XXX based on the CPU load in these devices - for (i = 0, walker = at91sam9_devs; walker->name; i++, walker++) { - at91_add_child(dev, i, walker->name, walker->unit, - walker->mem_base, walker->mem_len, walker->irq0, - walker->irq1, walker->irq2); - } -} - -#define NORMDEV 50 - -/* - * Standard priority levels for the system. 0 is lowest and 7 is highest. - * These values are the ones Atmel uses for its Linux port - */ -static int irq_prio[32] = -{ - 7, /* Advanced Interrupt Controller */ - 7, /* System Peripherals */ - 1, /* Parallel IO Controller A */ - 1, /* Parallel IO Controller B */ - 1, /* Parallel IO Controller C */ - 0, /* Analog-to-Digital Converter */ - 5, /* USART 0 */ - 5, /* USART 1 */ - 5, /* USART 2 */ - 0, /* Multimedia Card Interface */ - 2, /* USB Device Port */ - 6, /* Two-Wire Interface */ - 5, /* Serial Peripheral Interface 0 */ - 5, /* Serial Peripheral Interface 1 */ - 5, /* Serial Synchronous Controller */ - 0, - 0, - 0, /* Timer Counter 0 */ - 0, /* Timer Counter 1 */ - 0, /* Timer Counter 2 */ - 2, /* USB Host port */ - 3, /* Ethernet */ - 0, /* Image Sensor Interface */ - 5, /* USART 3 */ - 5, /* USART 4 */ - 5, /* USART 5 */ - 0, /* Timer Counter 3 */ - 0, /* Timer Counter 4 */ - 0, /* Timer Counter 5 */ - 0, /* Advanced Interrupt Controller */ - 0, /* Advanced Interrupt Controller */ - 0, /* Advanced Interrupt Controller */ -}; - -static int -at91_attach(device_t dev) -{ - struct at91_softc *sc = device_get_softc(dev); - int i; - - at91_softc = sc; - sc->sc_st = &at91_bs_tag; - sc->sc_sh = AT91SAM9G20_BASE; - sc->dev = dev; - 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 IRQ registers"); - sc->sc_irq_rman.rm_type = RMAN_ARRAY; - sc->sc_irq_rman.rm_descr = "AT91 IRQs"; - sc->sc_mem_rman.rm_type = RMAN_ARRAY; - sc->sc_mem_rman.rm_descr = "AT91 Memory"; - if (rman_init(&sc->sc_irq_rman) != 0 || - rman_manage_region(&sc->sc_irq_rman, 1, 31) != 0) - panic("at91_attach: failed to set up IRQ rman"); - if (rman_init(&sc->sc_mem_rman) != 0 || - rman_manage_region(&sc->sc_mem_rman, 0xdff00000ul, - 0xdffffffful) != 0) - panic("at91_attach: failed to set up memory rman"); - if (rman_manage_region(&sc->sc_mem_rman, AT91SAM9G20_OHCI_BASE, - AT91SAM9G20_OHCI_BASE + AT91SAM9G20_OHCI_SIZE - 1) != 0) - panic("at91_attach: failed to set up ohci memory"); - - if (rman_manage_region(&sc->sc_mem_rman, AT91SAM9G20_NAND_BASE, - AT91SAM9G20_NAND_BASE + AT91SAM9G20_NAND_SIZE - 1) != 0) - panic("at91_attach: failed to set up ohci memory"); - - -#if 0 - if (rman_manage_region(&sc->sc_mem_rman, AT91SAM9G20_CF_BASE, - AT91SAM9G20_CF_BASE + AT91SAM9G20_CF_SIZE - 1) != 0) - panic("at91_attach: failed to set up CompactFlash ATA memory"); -#endif - - for (i = 0; i < 32; i++) { - bus_space_write_4(sc->sc_st, sc->sc_sys_sh, 0x1000 + IC_SVR + - i * 4, i); - /* Priority. */ - bus_space_write_4(sc->sc_st, sc->sc_sys_sh, 0x1000 + IC_SMR + i * 4, - irq_prio[i]); - if (i < 8) - bus_space_write_4(sc->sc_st, sc->sc_sys_sh, 0x1000 + IC_EOICR, - 1); - } - bus_space_write_4(sc->sc_st, sc->sc_sys_sh, 0x1000 + IC_SPU, 32); - /* No debug. */ - bus_space_write_4(sc->sc_st, sc->sc_sys_sh, 0x1000 + IC_DCR, 0); - /* Disable and clear all interrupts. */ - bus_space_write_4(sc->sc_st, sc->sc_sys_sh, 0x1000 + IC_IDCR, 0xffffffff); - bus_space_write_4(sc->sc_st, sc->sc_sys_sh, 0x1000 + IC_ICCR, 0xffffffff); - - /* XXX */ - /* 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 DBGU */ - bus_space_write_4(sc->sc_st, sc->sc_sys_sh, 0x120c, 0xffffffff); - /* Disable all interrupts for the SDRAM controller */ - //bus_space_write_4(sc->sc_st, sc->sc_sys_sh, 0xfa8, 0xffffffff); - - - i = bus_space_read_4(sc->sc_st, - sc->sc_sys_sh, AT91SAM9G20_EBICSA); - - /*activate NAND*/ - bus_space_write_4(sc->sc_st, sc->sc_sys_sh, AT91SAM9G20_EBICSA, - i | AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA); - - - at91_cpu_add_builtin_children(dev, sc); - - bus_generic_probe(dev); - bus_generic_attach(dev); - enable_interrupts(I32_bit | F32_bit); - return (0); -} - -static struct resource * -at91_alloc_resource(device_t dev, device_t child, int type, int *rid, - u_long start, u_long end, u_long count, u_int flags) -{ - struct at91_softc *sc = device_get_softc(dev); - struct resource_list_entry *rle; - struct at91_ivar *ivar = device_get_ivars(child); - struct resource_list *rl = &ivar->resources; - - if (device_get_parent(child) != dev) - return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child, - type, rid, start, end, count, flags)); - - rle = resource_list_find(rl, type, *rid); - if (rle == NULL) - return (NULL); - if (rle->res) - panic("Resource rid %d type %d already in use", *rid, type); - if (start == 0UL && end == ~0UL) { - start = rle->start; - count = ulmax(count, rle->count); - end = ulmax(rle->end, start + count - 1); - } - switch (type) - { - case SYS_RES_IRQ: - rle->res = rman_reserve_resource(&sc->sc_irq_rman, - start, end, count, flags, child); - break; - case SYS_RES_MEMORY: - - rle->res = rman_reserve_resource(&sc->sc_mem_rman, - start, end, count, flags, child); - if (rle->res != NULL) { - rman_set_bustag(rle->res, &at91_bs_tag); - rman_set_bushandle(rle->res, start); - } - break; - } - if (rle->res) { - rle->start = rman_get_start(rle->res); - rle->end = rman_get_end(rle->res); - rle->count = count; - rman_set_rid(rle->res, *rid); - } - return (rle->res); -} - -static struct resource_list * -at91_get_resource_list(device_t dev, device_t child) -{ - struct at91_ivar *ivar; - - ivar = device_get_ivars(child); - return (&(ivar->resources)); -} - -static int -at91_release_resource(device_t dev, device_t child, int type, - int rid, struct resource *r) -{ - struct resource_list *rl; - struct resource_list_entry *rle; - - rl = at91_get_resource_list(dev, child); - if (rl == NULL) - return (EINVAL); - rle = resource_list_find(rl, type, rid); - if (rle == NULL) - return (EINVAL); - rman_release_resource(r); - rle->res = NULL; - return (0); -} - -static int -at91_setup_intr(device_t dev, device_t child, - struct resource *ires, int flags, driver_filter_t *filt, - driver_intr_t *intr, void *arg, void **cookiep) -{ - struct at91_softc *sc = device_get_softc(dev); - - if (rman_get_start(ires) == AT91SAM9G20_IRQ_SYSTEM && filt == NULL) - panic("All system interrupt ISRs must be FILTER"); - BUS_SETUP_INTR(device_get_parent(dev), child, ires, flags, filt, - intr, arg, cookiep); - bus_space_write_4(sc->sc_st, sc->sc_sys_sh, 0x1000 + IC_IECR, - 1 << rman_get_start(ires)); - return (0); -} - -static int -at91_teardown_intr(device_t dev, device_t child, struct resource *res, - void *cookie) -{ - struct at91_softc *sc = device_get_softc(dev); - - bus_space_write_4(sc->sc_st, sc->sc_sys_sh, 0x1000 + IC_IDCR, - 1 << rman_get_start(res)); - return (BUS_TEARDOWN_INTR(device_get_parent(dev), child, res, cookie)); -} - -static int -at91_activate_resource(device_t bus, device_t child, int type, int rid, - struct resource *r) -{ -#if 0 - u_long p; - int error; - - if (type == SYS_RES_MEMORY) { - error = bus_space_map(rman_get_bustag(r), - rman_get_bushandle(r), rman_get_size(r), 0, &p); - if (error) - return (error); - rman_set_bushandle(r, p); - } -#endif - return (rman_activate_resource(r)); -} - -static int -at91_print_child(device_t dev, device_t child) -{ - struct at91_ivar *ivars; - struct resource_list *rl; - int retval = 0; - - ivars = device_get_ivars(child); - rl = &ivars->resources; - - retval += bus_print_child_header(dev, child); - - retval += resource_list_print_type(rl, "port", SYS_RES_IOPORT, "%#lx"); - retval += resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#lx"); - retval += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%ld"); - if (device_get_flags(dev)) - retval += printf(" flags %#x", device_get_flags(dev)); - - retval += bus_print_child_footer(dev, child); - - return (retval); -} - -void -arm_mask_irq(uintptr_t nb) -{ - - bus_space_write_4(at91_softc->sc_st, - at91_softc->sc_sys_sh, 0x1000 + IC_IDCR, 1 << nb); - -} - -int -arm_get_next_irq(int last __unused) -{ - int status; - int irq; - - irq = bus_space_read_4(at91_softc->sc_st, - at91_softc->sc_sys_sh, 0x1000 + IC_IVR); - status = bus_space_read_4(at91_softc->sc_st, - at91_softc->sc_sys_sh, 0x1000 + IC_ISR); - if (status == 0) { - bus_space_write_4(at91_softc->sc_st, - at91_softc->sc_sys_sh, 0x1000 + IC_EOICR, 1); - return (-1); - } - return (irq); -} - -void -arm_unmask_irq(uintptr_t nb) -{ - - bus_space_write_4(at91_softc->sc_st, - at91_softc->sc_sys_sh, 0x1000 + IC_IECR, 1 << nb); - bus_space_write_4(at91_softc->sc_st, at91_softc->sc_sys_sh, - 0x1000 + IC_EOICR, 0); - -} - -static void -at91_eoi(void *unused) -{ - bus_space_write_4(at91_softc->sc_st, at91_softc->sc_sys_sh, - 0x1000 + IC_EOICR, 0); -} - -static device_method_t at91_methods[] = { - DEVMETHOD(device_probe, at91_probe), - DEVMETHOD(device_attach, at91_attach), - DEVMETHOD(device_identify, at91_identify), - - DEVMETHOD(bus_alloc_resource, at91_alloc_resource), - DEVMETHOD(bus_setup_intr, at91_setup_intr), - DEVMETHOD(bus_teardown_intr, at91_teardown_intr), - DEVMETHOD(bus_activate_resource, at91_activate_resource), - DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), - DEVMETHOD(bus_get_resource_list,at91_get_resource_list), - DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource), - DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), - DEVMETHOD(bus_release_resource, at91_release_resource), - DEVMETHOD(bus_print_child, at91_print_child), - - {0, 0}, -}; - -static driver_t at91_driver = { - "atmelarm", - at91_methods, - sizeof(struct at91_softc), -}; -static devclass_t at91_devclass; - -DRIVER_MODULE(atmelarm, nexus, at91_driver, at91_devclass, 0, 0); |
