[PATCH 41/49] imx: imx93_evk: Set ARM clock to 1.7Ghz

[Peng Fan (OSS)]

From: Peng Fan <peng.fan at nxp.com>

Set ARM clock to OD frequency 1.7Ghz, since we have set PMIC VDD_SOC
to Overdrive voltage 0.9V

Signed-off-by: Ye Li <ye.li at nxp.com>
Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
 arch/arm/include/asm/arch-imx9/clock.h | 4 +++-
 arch/arm/mach-imx/imx9/clock.c         | 9 +++++++++
 board/freescale/imx93_evk/spl.c        | 3 +++
 3 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/arch-imx9/clock.h b/arch/arm/include/asm/arch-imx9/clock.h
index d96f126a1d1..336d8613181 100644
--- a/arch/arm/include/asm/arch-imx9/clock.h
+++ b/arch/arm/include/asm/arch-imx9/clock.h
@@ -217,6 +217,8 @@ void dram_pll_init(ulong pll_val);
 void dram_enable_bypass(ulong clk_val);
 void dram_disable_bypass(void);
 
+int configure_intpll(enum ccm_clk_src pll, u32 freq);
+
 int ccm_clk_src_on(enum ccm_clk_src oscpll, bool enable);
 int ccm_clk_src_auto(enum ccm_clk_src oscpll, bool enable);
 int ccm_clk_src_lpm(enum ccm_clk_src oscpll, bool enable);
@@ -238,5 +240,5 @@ int ccm_shared_gpr_tz_access(u32 gpr, bool non_secure, bool user_mode, bool lock
 void enable_usboh3_clk(unsigned char enable);
 int set_clk_enet(enum enet_freq type);
 int set_clk_eqos(enum enet_freq type);
-
+void set_arm_clk(ulong freq);
 #endif
diff --git a/arch/arm/mach-imx/imx9/clock.c b/arch/arm/mach-imx/imx9/clock.c
index 5d2bc0d2f8f..8240afc6172 100644
--- a/arch/arm/mach-imx/imx9/clock.c
+++ b/arch/arm/mach-imx/imx9/clock.c
@@ -665,6 +665,15 @@ void dram_disable_bypass(void)
 	/* Switch from DRAM  clock root from CCM to PLL */
 	ccm_shared_gpr_set(SHARED_GPR_DRAM_CLK, SHARED_GPR_DRAM_CLK_SEL_PLL);
 }
+
+void set_arm_clk(ulong freq)
+{
+	/* Increase ARM clock to 1.7Ghz */
+	ccm_shared_gpr_set(SHARED_GPR_A55_CLK, SHARED_GPR_A55_CLK_SEL_CCM);
+	configure_intpll(ARM_PLL_CLK, 1700000000);
+	ccm_shared_gpr_set(SHARED_GPR_A55_CLK, SHARED_GPR_A55_CLK_SEL_PLL);
+}
+
 #endif
 
 int clock_init(void)
diff --git a/board/freescale/imx93_evk/spl.c b/board/freescale/imx93_evk/spl.c
index ca33f943424..38cfbac6ea6 100644
--- a/board/freescale/imx93_evk/spl.c
+++ b/board/freescale/imx93_evk/spl.c
@@ -108,6 +108,9 @@ void board_init_f(ulong dummy)
 	}
 	power_init_board();
 
+	/* 1.7GHz */
+	set_arm_clk(1700000000);
+
 	/* Init power of mix */
 	soc_power_init();
 
-- 
2.36.0