60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
#include <assert.h>
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#include <sys/types.h>
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#include <machine/cpu.h>
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#include <minix/type.h>
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#include <io.h>
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#include "kernel/kernel.h"
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#include "kernel/proc.h"
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#include "kernel/vm.h"
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#include "kernel/proto.h"
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#include "arch_proto.h"
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#include "omap_reset.h"
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#ifdef AM335X
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#define CM_BASE 0x44E00000
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#define CM_SIZE 0x1000
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#define PRM_DEVICE_OFFSET 0xf00
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#define PRM_RSTCTRL_REG 0x00
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#define RST_GLOBAL_WARM_SW_BIT 0
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#elif DM37XX
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#define CM_BASE 0x48307000
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#define CM_SIZE 0x1000
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#define PRM_RSTCTRL_REG 0x250
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#define RST_DPLL3_BIT 2
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#else
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#define CM_BASE 0x00000000
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#define CM_SIZE 0x1000
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#endif
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struct omap_reset
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{
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vir_bytes base;
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vir_bytes size;
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};
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static struct omap_reset omap_reset = {
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.base = CM_BASE,
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.size = CM_SIZE
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};
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static kern_phys_map reset_phys_map;
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void
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omap3_reset_init(void)
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{
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#if defined(AM335X) || defined(DM37XX)
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kern_phys_map_ptr(omap_reset.base, omap_reset.size, &reset_phys_map,
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&omap_reset.base);
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#endif /* AM335X || DM37XX */
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}
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void
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omap3_reset(void)
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{
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#ifdef AM335X
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mmio_set((omap_reset.base + PRM_DEVICE_OFFSET + PRM_RSTCTRL_REG), (1 << RST_GLOBAL_WARM_SW_BIT));
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#elif DM37XX
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mmio_set((omap_reset.base + PRM_RSTCTRL_REG), (1 << RST_DPLL3_BIT));
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#endif
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}
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