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Posted to commits@nuttx.apache.org by xi...@apache.org on 2024/09/12 17:50:30 UTC
(nuttx) 03/03: arch/arm64/imx9: Configure ENET clock
This is an automated email from the ASF dual-hosted git repository.
xiaoxiang pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/nuttx.git
commit 101c2f04213a7d29530f06ea18012262c0792e3b
Author: Jouni Ukkonen <jo...@unikie.com>
AuthorDate: Wed Aug 21 12:31:41 2024 +0300
arch/arm64/imx9: Configure ENET clock
Configure ENET clock to 125MHz in clock init
Signed-off-by: Jouni Ukkonen <jo...@unikie.com>
---
arch/arm64/src/imx9/hardware/imx93/imx93_ccm.h | 2 ++
arch/arm64/src/imx9/imx9_ccm.c | 20 ++++++++++++++++++++
2 files changed, 22 insertions(+)
diff --git a/arch/arm64/src/imx9/hardware/imx93/imx93_ccm.h b/arch/arm64/src/imx9/hardware/imx93/imx93_ccm.h
index 1768e7f12d..2432ca018b 100644
--- a/arch/arm64/src/imx9/hardware/imx93/imx93_ccm.h
+++ b/arch/arm64/src/imx9/hardware/imx93/imx93_ccm.h
@@ -730,6 +730,8 @@ static const int g_ccm_root_mux[][ROOT_MUX_MAX] =
#define CCM_NIC_APB_CLK_ROOT 66
#define CCM_DRAM_ALT_CLK_ROOT 76
#define CCM_DRAM_APB_CLK_ROOT 77
+#define CCM_ENET_TIMER_CLK_ROOT 87
+#define CCM_ENET_REF_CLK_ROOT 89
#define CCM_CLK_ROOT_NUM 95
#define CCM_OSCPLL_END 19
diff --git a/arch/arm64/src/imx9/imx9_ccm.c b/arch/arm64/src/imx9/imx9_ccm.c
index 69597b46dc..cba155bb2f 100644
--- a/arch/arm64/src/imx9/imx9_ccm.c
+++ b/arch/arm64/src/imx9/imx9_ccm.c
@@ -556,5 +556,25 @@ int imx9_ccm_clock_init(void)
return ret;
}
+ /* ENET to 125MHz */
+
+ imx9_ccm_gate_on(CCM_LPCG_ENET1, false);
+
+ ret = imx9_ccm_configure_root_clock(CCM_ENET_REF_CLK_ROOT,
+ SYS_PLL1PFD0DIV2, 2);
+ if (ret != 0)
+ {
+ return ret;
+ }
+
+ ret = imx9_ccm_configure_root_clock(CCM_ENET_TIMER_CLK_ROOT,
+ SYS_PLL1PFD0DIV2, 5);
+ if (ret != 0)
+ {
+ return ret;
+ }
+
+ imx9_ccm_gate_on(CCM_LPCG_ENET1, true);
+
return OK;
}