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ARM: at91: clock: complete the GCK's clock sources

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Add the UPLL clock and master clock as a clock source for getting
the generated clock frequency to complete its clock sources support.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
This commit is contained in:
Wenyou Yang 2016-04-11 16:41:32 +08:00 committed by Andreas Bießmann
parent 4adf6a7157
commit 7a91e1a383
2 changed files with 8 additions and 0 deletions
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6
arch/arm/mach-at91/armv7/clock.c
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@ -236,6 +236,12 @@ u32 at91_get_periph_generated_clk(u32 id)
case AT91_PMC_PCR_GCKCSS_PLLA_CLK:
freq = gd->arch.plla_rate_hz;
break;
case AT91_PMC_PCR_GCKCSS_UPLL_CLK:
freq = AT91_UTMI_PLL_CLK_FREQ;
break;
case AT91_PMC_PCR_GCKCSS_MCK_CLK:
freq = gd->arch.mck_rate_hz;
break;
default:
printf("Improper GCK clock source selection!\n");
freq = 0;

2
arch/arm/mach-at91/include/mach/clk.h
View File

@ -20,6 +20,8 @@
#define GCK_CSS_MCK_CLK 4
#define GCK_CSS_AUDIO_CLK 5
#define AT91_UTMI_PLL_CLK_FREQ 480000000
static inline unsigned long get_cpu_clk_rate(void)
{
DECLARE_GLOBAL_DATA_PTR;