diff options
Diffstat (limited to 'sys/arm/mv/mv_machdep.c')
| -rw-r--r-- | sys/arm/mv/mv_machdep.c | 67 |
1 files changed, 58 insertions, 9 deletions
diff --git a/sys/arm/mv/mv_machdep.c b/sys/arm/mv/mv_machdep.c index 782fcf0..174394a 100644 --- a/sys/arm/mv/mv_machdep.c +++ b/sys/arm/mv/mv_machdep.c @@ -46,10 +46,14 @@ __FBSDID("$FreeBSD$"); #include <sys/systm.h> #include <sys/bus.h> #include <sys/devmap.h> +#include <sys/kernel.h> #include <vm/vm.h> #include <vm/pmap.h> +#include <arm/arm/mpcore_timervar.h> +#include <arm/arm/nexusvar.h> + #include <machine/bus.h> #include <machine/fdt.h> #include <machine/machdep.h> @@ -59,6 +63,7 @@ __FBSDID("$FreeBSD$"); #include <machine/cpu-v4.h> #else #include <machine/cpu-v6.h> +#include <machine/pte-v6.h> #endif #include <arm/mv/mvreg.h> /* XXX */ @@ -66,6 +71,7 @@ __FBSDID("$FreeBSD$"); #include <arm/mv/mvwin.h> #include <dev/fdt/fdt_common.h> +#include <dev/ofw/ofw_bus_subr.h> static int platform_mpp_init(void); #if defined(SOC_MV_ARMADAXP) @@ -76,6 +82,7 @@ void armadaxp_l2_init(void); int armada38x_win_set_iosync_barrier(void); int armada38x_scu_enable(void); int armada38x_open_bootrom_win(void); +int armada38x_mbus_optimization(void); #endif #define MPP_PIN_MAX 68 @@ -84,6 +91,39 @@ int armada38x_open_bootrom_win(void); #define MPP_SEL(pin,func) (((func) & 0xf) << \ (((pin) % MPP_PINS_PER_REG) * 4)) +static void +mv_busdma_tag_init(void *arg __unused) +{ + phandle_t node; + bus_dma_tag_t dmat; + + /* + * If this platform has coherent DMA, create the parent DMA tag to pass + * down the coherent flag to all busses and devices on the platform, + * otherwise return without doing anything. By default create tag + * for all A38x-based platforms only. + */ + if ((node = OF_finddevice("/")) == -1) + return; + if (ofw_bus_node_is_compatible(node, "marvell,armada380") == 0) + return; + + bus_dma_tag_create(NULL, /* No parent tag */ + 1, 0, /* alignment, bounds */ + BUS_SPACE_MAXADDR, /* lowaddr */ + BUS_SPACE_MAXADDR, /* highaddr */ + NULL, NULL, /* filter, filterarg */ + BUS_SPACE_MAXSIZE, /* maxsize */ + BUS_SPACE_UNRESTRICTED, /* nsegments */ + BUS_SPACE_MAXSIZE, /* maxsegsize */ + BUS_DMA_COHERENT, /* flags */ + NULL, NULL, /* lockfunc, lockarg */ + &dmat); + + nexus_set_dma_tag(dmat); +} +SYSINIT(mv_busdma_tag, SI_SUB_DRIVERS, SI_ORDER_ANY, mv_busdma_tag_init, NULL); + static int platform_mpp_init(void) { @@ -103,7 +143,7 @@ platform_mpp_init(void) * Try to access the MPP node directly i.e. through /aliases/mpp. */ if ((node = OF_finddevice("mpp")) != -1) - if (fdt_is_compatible(node, "mrvl,mpp")) + if (ofw_bus_node_is_compatible(node, "mrvl,mpp")) goto moveon; /* * Find the node the long way. @@ -243,14 +283,9 @@ platform_late_init(void) /* * Re-initialise decode windows */ -#if !defined(SOC_MV_FREY) if (soc_decode_win() != 0) printf("WARNING: could not re-initialise decode windows! " "Running with existing settings...\n"); -#else - /* Disable watchdog and timers */ - write_cpu_ctrl(CPU_TIMERS_BASE + CPU_TIMER_CONTROL, 0); -#endif #if defined(SOC_MV_ARMADAXP) #if !defined(SMP) /* For SMP case it should be initialized after APs are booted */ @@ -260,9 +295,23 @@ platform_late_init(void) #endif #if defined(SOC_MV_ARMADA38X) + /* Configure timers' base frequency */ + arm_tmr_change_frequency(get_cpu_freq() / 2); + + /* + * Workaround for Marvell Armada38X family HW issue + * between Cortex-A9 CPUs and on-chip devices that may + * cause hang on heavy load. + * To avoid that, map all registers including PCIe IO + * as strongly ordered instead of device memory. + */ + pmap_remap_vm_attr(VM_MEMATTR_DEVICE, VM_MEMATTR_SO); + /* Set IO Sync Barrier bit for all Mbus devices */ if (armada38x_win_set_iosync_barrier() != 0) printf("WARNING: could not map CPU Subsystem registers\n"); + if (armada38x_mbus_optimization() != 0) + printf("WARNING: could not enable mbus optimization\n"); if (armada38x_scu_enable() != 0) printf("WARNING: could not enable SCU\n"); #ifdef SMP @@ -288,8 +337,8 @@ platform_sram_devmap(struct devmap_entry *map) * SRAM range. */ if ((child = OF_finddevice("/sram")) != 0) - if (fdt_is_compatible(child, "mrvl,cesa-sram") || - fdt_is_compatible(child, "mrvl,scratchpad")) + if (ofw_bus_node_is_compatible(child, "mrvl,cesa-sram") || + ofw_bus_node_is_compatible(child, "mrvl,scratchpad")) goto moveon; if ((root = OF_finddevice("/")) == 0) @@ -404,7 +453,7 @@ platform_devmap_init(void) i += 2; } - if (fdt_is_compatible(child, "mrvl,lbc")) { + if (ofw_bus_node_is_compatible(child, "mrvl,lbc")) { /* Check available space */ if (OF_getencprop(child, "bank-count", &bank_count, sizeof(bank_count)) <= 0) |
