Remoteproc as a module in Yocto - Sc589

Question

Hi, 
 We are trying to change Remoteproc to not be automatically initiated during startup as we have a dual device configuration. 
 When trying to build we receive the below errors using the yocto build system. 
 We also tried to export symbols but it doesn't help/work 
 | MODPOST 28 modules | ERROR: "sec_raise_irq" [drivers/remoteproc/adi_remoteproc.ko] undefined! | ERROR: "sec_enable_sci" [drivers/remoteproc/adi_remoteproc.ko] undefined! | ERROR: "sec_enable_ssi" [drivers/remoteproc/adi_remoteproc.ko] undefined! | ERROR: "sec_set_ssi_coreid" [drivers/remoteproc/adi_remoteproc.ko] undefined! 
 Can you please advise how to achieve this? 
 Thanks, 
 Mark

Prasanth R · Accepted Answer

Hi Mark, Could you try applying the patch and rebuild your kernel? build/tmp/work/adsp_sc589_ezkit-poky-linux-gnueabi/linux-adi/4.19-r0/git$ git am 0001-remoteproc-Add-export-symbols-to-build-as-module.patch $bitbake -C compile linux-adi From 9d949c5196d97018988e5092b7abd5420fea318e Mon Sep 17 00:00:00 2001 Date: Fri, 29 Oct 2021 11:44:00 +0530 Subject: [PATCH] remoteproc: Add export symbols to build as module --- arch/arm/mach-sc58x/sec.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/mach-sc58x/sec.c b/arch/arm/mach-sc58x/sec.c index 62c6663..0c9e4cc 100644 --- a/arch/arm/mach-sc58x/sec.c +++ b/arch/arm/mach-sc58x/sec.c @@ -15,6 +15,7 @@ #include #include #include +#include static DEFINE_SPINLOCK(lock); @@ -89,6 +90,7 @@ void sec_raise_irq(unsigned int irq) writel(sid, sec->common_base + SEC_RAISE); spin_unlock_irqrestore(&lock, flags); } +EXPORT_SYMBOL(sec_raise_irq); void sec_enable_ssi(unsigned int sid, bool fault, bool source) { @@ -112,6 +114,7 @@ void sec_enable_ssi(unsigned int sid, bool fault, bool source) spin_unlock_irqrestore(&lock, flags); } +EXPORT_SYMBOL(sec_enable_ssi); void sec_enable_sci(unsigned int coreid) { @@ -127,6 +130,7 @@ void sec_enable_sci(unsigned int coreid) writel(reg_cctl, sec->sci_base + 0x40 * id); spin_unlock_irqrestore(&lock, flags); } +EXPORT_SYMBOL(sec_enable_sci); void sec_set_ssi_coreid(unsigned int sid, unsigned int coreid) { @@ -146,6 +150,7 @@ void sec_set_ssi_coreid(unsigned int sid, unsigned int coreid) spin_unlock_irqrestore(&lock, flags); } +EXPORT_SYMBOL(sec_set_ssi_coreid); static int __init early_sec_init(char *buf) { -- 2.7.4 Thanks, Prasanth R)

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Remoteproc as a module in Yocto - Sc589