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Get the CPU frequency and set cpu_cc_freq.

This commit is contained in:
skrll 2012-12-19 15:49:47 +00:00
parent 8774e5e119
commit d884a54458
1 changed files with 14 additions and 2 deletions
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16
sys/arch/evbarm/rpi/rpi_machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: rpi_machdep.c,v 1.18 2012/10/30 20:14:22 skrll Exp $ */
/* $NetBSD: rpi_machdep.c,v 1.19 2012/12/19 15:49:47 skrll Exp $ */
/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: rpi_machdep.c,v 1.18 2012/10/30 20:14:22 skrll Exp $");
__KERNEL_RCSID(0, "$NetBSD: rpi_machdep.c,v 1.19 2012/12/19 15:49:47 skrll Exp $");
#include "opt_evbarm_boardtype.h"
@ -130,6 +130,7 @@ static struct {
struct vcprop_tag_boardserial vbt_serial;
struct vcprop_tag_cmdline vbt_cmdline;
struct vcprop_tag_clockrate vbt_emmcclockrate;
struct vcprop_tag_clockrate vbt_armclockrate;
struct vcprop_tag end;
} vb __packed __aligned(16) =
{
@ -194,6 +195,14 @@ static struct {
},
.id = VCPROP_CLK_EMMC
},
.vbt_armclockrate = {
.tag = {
.vpt_tag = VCPROPTAG_GET_CLOCKRATE,
.vpt_len = VCPROPTAG_LEN(vb.vbt_armclockrate),
.vpt_rcode = VCPROPTAG_REQUEST
},
.id = VCPROP_CLK_ARM
},
.end = {
.vpt_tag = VCPROPTAG_NULL
}
@ -239,6 +248,9 @@ rpi_bootparams(void)
bootconfig.dramblocks++;
}
}
if (vcprop_tag_success_p(&vb.vbt_armclockrate.tag))
curcpu()->ci_data.cpu_cc_freq = vb.vbt_armclockrate.rate;
#ifdef VERBOSE_INIT_ARM
if (vcprop_tag_success_p(&vb.vbt_fwrev.tag))