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Diffstat (limited to 'arch/arm/mach-imx/imx8m/soc.c')
-rw-r--r--arch/arm/mach-imx/imx8m/soc.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c
index d115b25a5b..a4863281e3 100644
--- a/arch/arm/mach-imx/imx8m/soc.c
+++ b/arch/arm/mach-imx/imx8m/soc.c
@@ -327,7 +327,7 @@ phys_size_t get_effective_memsize(void)
}
}
-ulong board_get_usable_ram_top(ulong total_size)
+phys_size_t board_get_usable_ram_top(phys_size_t total_size)
{
ulong top_addr;
@@ -544,6 +544,16 @@ static int imx8m_check_clock(void *ctx, struct event *event)
}
EVENT_SPY(EVT_DM_POST_INIT, imx8m_check_clock);
+static void imx8m_setup_snvs(void)
+{
+ /* Enable SNVS clock */
+ clock_enable(CCGR_SNVS, 1);
+ /* Initialize glitch detect */
+ writel(SNVS_LPPGDR_INIT, SNVS_BASE_ADDR + SNVS_LPLVDR);
+ /* Clear interrupt status */
+ writel(0xffffffff, SNVS_BASE_ADDR + SNVS_LPSR);
+}
+
int arch_cpu_init(void)
{
struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
@@ -594,6 +604,8 @@ int arch_cpu_init(void)
writel(0x200, &ocotp->ctrl_clr);
}
+ imx8m_setup_snvs();
+
return 0;
}