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Start to add FDT support.

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This commit is contained in:
Warner Losh 2014-08-14 04:21:20 +00:00
parent 280cfc8438
commit 66f2388712
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=269958
2 changed files with 107 additions and 9 deletions
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90
sys/arm/at91/at91_common.c Normal file
View file

@ -0,0 +1,90 @@
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#define _ARM32_BUS_DMA_PRIVATE
#include <sys/param.h>
#include <sys/systm.h>
#include <vm/vm.h>
#include <machine/devmap.h>
#include <machine/machdep.h>
#include <arm/at91/at91var.h>
#include <arm/at91/at91soc.h>
#include <arm/at91/at91_aicreg.h>
#include <dev/fdt/fdt_common.h>
#include <dev/ofw/openfirm.h>
#include <machine/fdt.h>
extern const struct arm_devmap_entry at91_devmap[];
extern struct bus_space at91_bs_tag;
bus_space_tag_t fdtbus_bs_tag = &at91_bs_tag;
struct fdt_fixup_entry fdt_fixup_table[] = {
{ NULL, NULL }
};
static int
fdt_aic_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig,
int *pol)
{
int offset;
if (fdt_is_compatible(node, "atmel,at91rm9200-aic"))
offset = 0;
else
return (ENXIO);
*interrupt = fdt32_to_cpu(intr[0]) + offset;
*trig = INTR_TRIGGER_CONFORM;
*pol = INTR_POLARITY_CONFORM;
return (0);
}
fdt_pic_decode_t fdt_pic_table[] = {
&fdt_aic_decode_ic,
NULL
};
static void
at91_eoi(void *unused)
{
uint32_t *eoicr = (uint32_t *)(0xdffff000 + IC_EOICR);
*eoicr = 0;
}
vm_offset_t
initarm_lastaddr(void)
{
return (arm_devmap_lastaddr());
}
void
initarm_early_init(void)
{
arm_post_filter = at91_eoi;
at91_soc_id();
arm_devmap_register_table(at91_devmap);
}
int
initarm_devmap_init(void)
{
// arm_devmap_add_entry(0xfff00000, 0x00100000); /* 1MB - uart, aic and timers*/
return (0);
}
void
initarm_gpio_init(void)
{
}
void
initarm_late_init(void)
{
}

26
sys/arm/at91/at91_machdep.c
View file

@ -43,6 +43,8 @@
* Created : 17/09/94
*/
#include "opt_platform.h"
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
@ -111,8 +113,12 @@ __FBSDID("$FreeBSD$");
/* this should be evenly divisable by PAGE_SIZE / L2_TABLE_SIZE_REAL (or 4) */
#define NUM_KERNEL_PTS (KERNEL_PT_AFKERNEL + KERNEL_PT_AFKERNEL_NUM)
extern struct bus_space at91_bs_tag;
struct pv_addr kernel_pt_table[NUM_KERNEL_PTS];
uint32_t at91_master_clock;
/* Static device mappings. */
const struct arm_devmap_entry at91_devmap[] = {
/*
@ -194,15 +200,6 @@ const struct arm_devmap_entry at91_devmap[] = {
{ 0, 0, 0, 0, 0, }
};
/* Physical and virtual addresses for some global pages */
struct pv_addr systempage;
struct pv_addr msgbufpv;
struct pv_addr irqstack;
struct pv_addr undstack;
struct pv_addr abtstack;
struct pv_addr kernelstack;
#ifdef LINUX_BOOT_ABI
extern int membanks;
extern int memstart[];
@ -444,6 +441,16 @@ board_init(void)
}
#endif
#ifndef FDT
/* Physical and virtual addresses for some global pages */
struct pv_addr msgbufpv;
struct pv_addr kernelstack;
struct pv_addr systempage;
struct pv_addr irqstack;
struct pv_addr abtstack;
struct pv_addr undstack;
void *
initarm(struct arm_boot_params *abp)
{
@ -651,6 +658,7 @@ initarm(struct arm_boot_params *abp)
return ((void *)(kernelstack.pv_va + USPACE_SVC_STACK_TOP -
sizeof(struct pcb)));
}
#endif
/*
* These functions are handled elsewhere, so make them nops here.