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ARM: tegra: fix pmc_pwrgate_timer_mult register definition

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Register pmc_pwrgate_timer_mult has a different layout on Tegra114 and
Tegra124. Reflect this in pmc.h.

Also, simply write the whole of the register in start_cpu() rather than
doing a read-modify-write; the register is simple enough that the code
can easily construct the entire desired value.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This commit is contained in:
Stephen Warren 2014-02-03 14:03:25 -07:00 committed by Tom Warren
parent cd7efc2a94
commit f3026c1683
2 changed files with 13 additions and 2 deletions
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4
arch/arm/cpu/arm720t/tegra124/cpu.c
View file

@ -252,8 +252,8 @@ void start_cpu(u32 reset_vector)
tegra124_init_clocks();
/* Set power-gating timer multiplier */
clrbits_le32(&pmc->pmc_pwrgate_timer_mult, TIMER_MULT_MASK);
setbits_le32(&pmc->pmc_pwrgate_timer_mult, MULT_8);
writel((MULT_8 << TIMER_MULT_SHIFT) | (MULT_8 << TIMER_MULT_CPU_SHIFT),
&pmc->pmc_pwrgate_timer_mult);
enable_cpu_power_rail();
enable_cpu_clocks();

11
arch/arm/include/asm/arch-tegra/pmc.h
View file

@ -298,14 +298,25 @@ struct pmc_ctlr {
#define PMC_XOFS_SHIFT 1
#define PMC_XOFS_MASK (0x3F << PMC_XOFS_SHIFT)
#if defined(CONFIG_TEGRA114)
#define TIMER_MULT_SHIFT 0
#define TIMER_MULT_MASK (3 << TIMER_MULT_SHIFT)
#define TIMER_MULT_CPU_SHIFT 2
#define TIMER_MULT_CPU_MASK (3 << TIMER_MULT_CPU_SHIFT)
#elif defined(CONFIG_TEGRA124)
#define TIMER_MULT_SHIFT 0
#define TIMER_MULT_MASK (7 << TIMER_MULT_SHIFT)
#define TIMER_MULT_CPU_SHIFT 3
#define TIMER_MULT_CPU_MASK (7 << TIMER_MULT_CPU_SHIFT)
#endif
#define MULT_1 0
#define MULT_2 1
#define MULT_4 2
#define MULT_8 3
#if defined(CONFIG_TEGRA124)
#define MULT_16 4
#endif
#define AMAP_WRITE_SHIFT 20
#define AMAP_WRITE_ON (1 << AMAP_WRITE_SHIFT)