[PATCH v2] ARM: imx: Enable instruction cache early on on i.MX8M

[sbabic]

> Enable instruction cache early on to speed up the boot process on i.MX8M.
> Signed-off-by: Marek Vasut 
> Cc: Fabio Estevam 
> Cc: Peng Fan 
> Cc: Stefano Babic 
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

-- 
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DENX Software Engineering GmbH,  Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sba...@denx.de
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Re: [PATCH v2] ARM: imx: Enable instruction cache early on on i.MX8M

[Stefano Babic]

On 13.04.22 00:41, Marek Vasut wrote:

Enable instruction cache early on to speed up the boot process on i.MX8M.

Signed-off-by: Marek Vasut 
Cc: Fabio Estevam 
Cc: Peng Fan 
Cc: Stefano Babic 
---
V2: Protect the icache_enable with !CONFIG_IS_ENABLED(SYS_ICACHE_OFF),
 the symbol might be undefined in case CONFIG_(SPL_)SYS_ICACHE_OFF
 is set
---
  arch/arm/mach-imx/imx8m/soc.c | 5 +
  1 file changed, 5 insertions(+)

diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c
index bb94ef51492..8171631db10 100644
--- a/arch/arm/mach-imx/imx8m/soc.c
+++ b/arch/arm/mach-imx/imx8m/soc.c
@@ -550,6 +550,11 @@ EVENT_SPY(EVT_DM_POST_INIT, imx8m_check_clock);
  int arch_cpu_init(void)
  {
struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
+
+#if !CONFIG_IS_ENABLED(SYS_ICACHE_OFF)
+   icache_enable();
+#endif
+
/*
 * ROM might disable clock for SCTR,
 * enable the clock before timer_init.


Thanks for fast fix - I apply this before my PR.

Regards,
Stefano

--
=
DENX Software Engineering GmbH,  Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sba...@denx.de
=

[PATCH v2] ARM: imx: Enable instruction cache early on on i.MX8M

[Marek Vasut]

Enable instruction cache early on to speed up the boot process on i.MX8M.

Signed-off-by: Marek Vasut 
Cc: Fabio Estevam 
Cc: Peng Fan 
Cc: Stefano Babic 
---
V2: Protect the icache_enable with !CONFIG_IS_ENABLED(SYS_ICACHE_OFF),
the symbol might be undefined in case CONFIG_(SPL_)SYS_ICACHE_OFF
is set
---
 arch/arm/mach-imx/imx8m/soc.c | 5 +
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c
index bb94ef51492..8171631db10 100644
--- a/arch/arm/mach-imx/imx8m/soc.c
+++ b/arch/arm/mach-imx/imx8m/soc.c
@@ -550,6 +550,11 @@ EVENT_SPY(EVT_DM_POST_INIT, imx8m_check_clock);
 int arch_cpu_init(void)
 {
struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
+
+#if !CONFIG_IS_ENABLED(SYS_ICACHE_OFF)
+   icache_enable();
+#endif
+
/*
 * ROM might disable clock for SCTR,
 * enable the clock before timer_init.
-- 
2.35.1