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ARM: tegra: replace the CPU power on function with PMC call

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Using the CPU power on function in PMC driver to bring up secondary CPUs,
because we are going to re-factor powergate driver to support generic
power domain. It will be removed later and added the generic power domain
support in PMC driver.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Joseph Lo 2013-02-26 16:28:06 +00:00 committed by Stephen Warren
parent c141753fc3
commit 7e56474456
1 changed files with 7 additions and 12 deletions
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19
arch/arm/mach-tegra/platsmp.c
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@ -26,11 +26,10 @@
#include <asm/smp_scu.h>
#include <asm/smp_plat.h>
#include <mach/powergate.h>
#include "fuse.h"
#include "flowctrl.h"
#include "reset.h"
#include "pmc.h"
#include "common.h"
#include "iomap.h"
@ -80,14 +79,10 @@ static int tegra20_boot_secondary(unsigned int cpu, struct task_struct *idle)
static int tegra30_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
int ret, pwrgateid;
int ret;
unsigned long timeout;
cpu = cpu_logical_map(cpu);
pwrgateid = tegra_cpu_powergate_id(cpu);
if (pwrgateid < 0)
return pwrgateid;
tegra_put_cpu_in_reset(cpu);
flowctrl_write_cpu_halt(cpu, 0);
@ -108,7 +103,7 @@ static int tegra30_boot_secondary(unsigned int cpu, struct task_struct *idle)
if (cpumask_test_cpu(cpu, &tegra_cpu_init_mask)) {
timeout = jiffies + msecs_to_jiffies(50);
do {
if (tegra_powergate_is_powered(pwrgateid))
if (tegra_pmc_cpu_is_powered(cpu))
goto remove_clamps;
udelay(10);
} while (time_before(jiffies, timeout));
@ -120,14 +115,14 @@ static int tegra30_boot_secondary(unsigned int cpu, struct task_struct *idle)
* be un-gated by un-toggling the power gate register
* manually.
*/
if (!tegra_powergate_is_powered(pwrgateid)) {
ret = tegra_powergate_power_on(pwrgateid);
if (!tegra_pmc_cpu_is_powered(cpu)) {
ret = tegra_pmc_cpu_power_on(cpu);
if (ret)
return ret;
/* Wait for the power to come up. */
timeout = jiffies + msecs_to_jiffies(100);
while (tegra_powergate_is_powered(pwrgateid)) {
while (tegra_pmc_cpu_is_powered(cpu)) {
if (time_after(jiffies, timeout))
return -ETIMEDOUT;
udelay(10);
@ -140,7 +135,7 @@ static int tegra30_boot_secondary(unsigned int cpu, struct task_struct *idle)
udelay(10);
/* Remove I/O clamps. */
ret = tegra_powergate_remove_clamping(pwrgateid);
ret = tegra_pmc_cpu_remove_clamping(cpu);
if (ret)
return ret;