[PATCH] ARM: imx: Enable instruction cache early on on i.MX8M
Enable instruction cache early on to speed up the boot process on i.MX8M.
Signed-off-by: Marek Vasut marex@denx.de Cc: Fabio Estevam festevam@gmail.com Cc: Peng Fan peng.fan@nxp.com Cc: Stefano Babic sbabic@denx.de --- arch/arm/mach-imx/imx8m/soc.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c index a41afc5b4f8..6fd4377f1c2 100644 --- a/arch/arm/mach-imx/imx8m/soc.c +++ b/arch/arm/mach-imx/imx8m/soc.c @@ -514,6 +514,9 @@ int arch_cpu_init_dm(void) int arch_cpu_init(void) { struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR; + + icache_enable(); + /* * ROM might disable clock for SCTR, * enable the clock before timer_init.
Hi Marek,
On 03.04.22 23:24, Marek Vasut wrote:
Enable instruction cache early on to speed up the boot process on i.MX8M.
Signed-off-by: Marek Vasut marex@denx.de Cc: Fabio Estevam festevam@gmail.com Cc: Peng Fan peng.fan@nxp.com Cc: Stefano Babic sbabic@denx.de
arch/arm/mach-imx/imx8m/soc.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c index a41afc5b4f8..6fd4377f1c2 100644 --- a/arch/arm/mach-imx/imx8m/soc.c +++ b/arch/arm/mach-imx/imx8m/soc.c @@ -514,6 +514,9 @@ int arch_cpu_init_dm(void) int arch_cpu_init(void) { struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
- icache_enable();
- /*
- ROM might disable clock for SCTR,
- enable the clock before timer_init.
This does not seem enough because many boards do not find icache_enable, for example imx8mp_rsb3720a1_4G (but there are many others). Can you check it and repost ? Thanks !
+==================================================== +aarch64-linux-ld.bfd: arch/arm/mach-imx/imx8m/soc.o: in function `arch_cpu_init': +arch/arm/mach-imx/imx8m/soc.c:554: undefined reference to `icache_enable' +make[2]: *** [scripts/Makefile.spl:512: spl/u-boot-spl] Error 1 +make[1]: *** [Makefile:2105: spl/u-boot-spl] Error 2 +make: *** [Makefile:177: sub-make] Error 2
Best regards, Stefano
participants (2)
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Marek Vasut -
Stefano Babic