mirror of
https://github.com/torvalds/linux.git
synced 2024-12-24 20:01:55 +00:00
0b79f2772a
- First an ACKed MFD patch deleting the only consumer of these cpu_is* functions outside of mach-ux500 - Introduce a new local cpu_is_u8580() in this patch set to avoid clashing with other patch sets. - Finally de-globalize <mach/id.h>. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQIcBAABAgAGBQJRCAvIAAoJEEEQszewGV1zANkQAJuEX2agV62ULfukOgATLm6A KHvt04X8r9tsZwC6PFZYWtaD60/hUIgtFLfV5gj/RCJlpOqlCqN6+S8y55mmB/Az Cmp2UwFQ0w9uSI+AtJWnwyd/ViGRzoARSJqX144XhITABTi4hu7ODWpNWrVbvOmX Swy1qYBvsrm9L2abE0/I+O8k4YVHX1s73WocGquu6VCAXUWnDxeanrP79A/jARxa vhKZcD/QDfvN71KKIREQTkh3MLQszrHMavVuI3d4aEqL8Pzxn28zUjjIFQDZYhfp 8KpuZe/Vys1+YY5ssd91C8puIi2hxabvniN/IbnYVK98V7jXx01CTSb0csUokWTA 8AIYA34HIEwLJohcOvSzbPw121M0pjqLKhyoqkMi7ExeEolAk3Z8d3FALZ96cbPF WdwUQYx298hZqjsHJx42RozZeGPMxEbmgwxhvjePrIweFcbojyda/AnrFU02svLZ AekYiEObCqsxSmZZ+y0ey3aETD0WmnRf58uPEzylV7ko4bEdxztw+joESv2ieZ2/ fPbRj45M4EPsqsCgQnNsGiBjPIvyKM9gon9Np4PwKHMLCYeRdkX7h5BOEx896mHv IAmzR5h6Y/fd8yOckdK89hF0qBoLBlowbJKa39sKhBoe/pHkumcq92zrXs2pRFQy KFBMEIIAEICgINOL8BLF =zjvx -----END PGP SIGNATURE----- Merge tag 'ux500-no-idh' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/cleanup From Linus Walleij: Removal of the <mach/id.h> include from ux500 - First an ACKed MFD patch deleting the only consumer of these cpu_is* functions outside of mach-ux500 - Introduce a new local cpu_is_u8580() in this patch set to avoid clashing with other patch sets. - Finally de-globalize <mach/id.h>. * tag 'ux500-no-idh' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson: ARM: ux500: de-globalize <mach/id.h> ARM: ux500: Introduce cpu_is_u8580() mfd: prcmu: delete pin control helpers Signed-off-by: Olof Johansson <olof@lixom.net>
104 lines
2.7 KiB
C
104 lines
2.7 KiB
C
/*
|
|
* Copyright (C) ST-Ericsson SA 2011
|
|
*
|
|
* License Terms: GNU General Public License v2
|
|
* Author: Mattias Wallin <mattias.wallin@stericsson.com> for ST-Ericsson
|
|
*/
|
|
#include <linux/io.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/clksrc-dbx500-prcmu.h>
|
|
#include <linux/of.h>
|
|
#include <linux/of_address.h>
|
|
#include <linux/platform_data/clocksource-nomadik-mtu.h>
|
|
|
|
#include <asm/smp_twd.h>
|
|
|
|
#include <mach/setup.h>
|
|
#include <mach/hardware.h>
|
|
#include <mach/irqs.h>
|
|
|
|
#include "id.h"
|
|
|
|
#ifdef CONFIG_HAVE_ARM_TWD
|
|
static DEFINE_TWD_LOCAL_TIMER(u8500_twd_local_timer,
|
|
U8500_TWD_BASE, IRQ_LOCALTIMER);
|
|
|
|
static void __init ux500_twd_init(void)
|
|
{
|
|
struct twd_local_timer *twd_local_timer;
|
|
int err;
|
|
|
|
/* Use this to switch local timer base if changed in new ASICs */
|
|
twd_local_timer = &u8500_twd_local_timer;
|
|
|
|
if (of_have_populated_dt())
|
|
twd_local_timer_of_register();
|
|
else {
|
|
err = twd_local_timer_register(twd_local_timer);
|
|
if (err)
|
|
pr_err("twd_local_timer_register failed %d\n", err);
|
|
}
|
|
}
|
|
#else
|
|
#define ux500_twd_init() do { } while(0)
|
|
#endif
|
|
|
|
const static struct of_device_id prcmu_timer_of_match[] __initconst = {
|
|
{ .compatible = "stericsson,db8500-prcmu-timer-4", },
|
|
{ },
|
|
};
|
|
|
|
void __init ux500_timer_init(void)
|
|
{
|
|
void __iomem *mtu_timer_base;
|
|
void __iomem *prcmu_timer_base;
|
|
void __iomem *tmp_base;
|
|
struct device_node *np;
|
|
|
|
if (cpu_is_u8500_family() || cpu_is_ux540_family()) {
|
|
mtu_timer_base = __io_address(U8500_MTU0_BASE);
|
|
prcmu_timer_base = __io_address(U8500_PRCMU_TIMER_4_BASE);
|
|
} else {
|
|
ux500_unknown_soc();
|
|
}
|
|
|
|
/* TODO: Once MTU has been DT:ed place code above into else. */
|
|
if (of_have_populated_dt()) {
|
|
#ifdef CONFIG_OF
|
|
np = of_find_matching_node(NULL, prcmu_timer_of_match);
|
|
if (!np)
|
|
#endif
|
|
goto dt_fail;
|
|
|
|
tmp_base = of_iomap(np, 0);
|
|
if (!tmp_base)
|
|
goto dt_fail;
|
|
|
|
prcmu_timer_base = tmp_base;
|
|
}
|
|
|
|
dt_fail:
|
|
/* Doing it the old fashioned way. */
|
|
|
|
/*
|
|
* Here we register the timerblocks active in the system.
|
|
* Localtimers (twd) is started when both cpu is up and running.
|
|
* MTU register a clocksource, clockevent and sched_clock.
|
|
* Since the MTU is located in the VAPE power domain
|
|
* it will be cleared in sleep which makes it unsuitable.
|
|
* We however need it as a timer tick (clockevent)
|
|
* during boot to calibrate delay until twd is started.
|
|
* RTC-RTT have problems as timer tick during boot since it is
|
|
* depending on delay which is not yet calibrated. RTC-RTT is in the
|
|
* always-on powerdomain and is used as clockevent instead of twd when
|
|
* sleeping.
|
|
* The PRCMU timer 4 register a clocksource and
|
|
* sched_clock with higher rating then MTU since is always-on.
|
|
*
|
|
*/
|
|
|
|
nmdk_timer_init(mtu_timer_base, IRQ_MTU0);
|
|
clksrc_dbx500_prcmu_init(prcmu_timer_base);
|
|
ux500_twd_init();
|
|
}
|