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ARM: renesas: Add generic timer initialization for V3U Falcon

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Init the Generic Timer for V3U Falcon in early phase

Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com>
Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
This commit is contained in:
Koji Matsuoka 2020-07-21 15:21:53 +09:00 committed by Marek Vasut
parent 4cfdcf3948
commit b3494132f0
1 changed files with 25 additions and 0 deletions
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25
board/renesas/falcon/falcon.c
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@ -20,6 +20,31 @@ DECLARE_GLOBAL_DATA_PTR;
#define CPGWPR 0xE6150000
#define CPGWPCR 0xE6150004
#define EXTAL_CLK 16666600u
#define CNTCR_BASE 0xE6080000
#define CNTFID0 (CNTCR_BASE + 0x020)
#define CNTCR_EN BIT(0)
static void init_generic_timer(void)
{
u32 freq;
/* Set frequency data in CNTFID0 */
freq = EXTAL_CLK;
/* Update memory mapped and register based freqency */
asm volatile ("msr cntfrq_el0, %0" :: "r" (freq));
writel(freq, CNTFID0);
/* Enable counter */
setbits_le32(CNTCR_BASE, CNTCR_EN);
}
void s_init(void)
{
init_generic_timer();
}
int board_early_init_f(void)
{
/* Unlock CPG access */