[PATCH v4 2/3] arm: mach-k3: j784s4_init: Trigger LBIST and PBIST on MAIN R5 2_0

[Manorit Chawdhry]

Hi Neha,

On 15:57-20250609, Neha Malcom Francis wrote:
> Trigger all tests of PBIST and LBIST using appropriate calls to set the
> core under test (MAIN R5 2_0) to it's required state.
> 
> Signed-off-by: Neha Malcom Francis <n-francis at ti.com>
> ---
> No change since v3
> 
>  arch/arm/mach-k3/j784s4/j784s4_init.c | 52 +++++++++++++++++++++++++++
>  1 file changed, 52 insertions(+)
> 
> diff --git a/arch/arm/mach-k3/j784s4/j784s4_init.c b/arch/arm/mach-k3/j784s4/j784s4_init.c
> index 787cf6261e4..6e21d057fb8 100644
> --- a/arch/arm/mach-k3/j784s4/j784s4_init.c
> +++ b/arch/arm/mach-k3/j784s4/j784s4_init.c
> @@ -17,6 +17,7 @@
>  #include <dm/pinctrl.h>
>  #include <mmc.h>
>  #include <remoteproc.h>
> +#include <k3_bist.h>
>  
>  #include "../sysfw-loader.h"
>  #include "../common.h"
> @@ -122,6 +123,48 @@ static void setup_navss_nb(void)
>  	writel(NB_THREADMAP_BIT2, (uintptr_t)NAVSS0_NBSS_NB1_CFG_NB_THREADMAP);
>  }
>  
> +/* Execute and check results of BIST executed on MCU1_x and MCU4_O */
> +static void run_bist_j784s4(struct udevice *dev)
> +{
> +	struct bist_ops *ops;
> +	struct ti_sci_handle *handle;
> +	int ret;
> +
> +	ops = (struct bist_ops *)device_get_ops(dev);
> +	handle = get_ti_sci_handle();
> +
> +	/* get status of HW POST PBIST on MCU1_x */
> +	if (ops->run_pbist_post())
> +		panic("HW POST LBIST on MCU1_x failed\n");
> +
> +	/* trigger PBIST tests on MCU4_0 */
> +	ret = prepare_pbist(handle);
> +	ret |= ops->run_pbist_neg();
> +	ret |= deprepare_pbist(handle);
> +
> +	ret |= prepare_pbist(handle);
> +	ret |= ops->run_pbist();
> +	ret |= deprepare_pbist(handle);
> +
> +	ret |= prepare_pbist(handle);
> +	ret |= ops->run_pbist_rom();
> +	ret |= deprepare_pbist(handle);
> +
> +	if (ret)
> +		panic("PBIST on MCU4_0 failed: %d\n", ret);
> +
> +	/* get status of HW POST PBIST on MCU1_x */
> +	if (ops->run_lbist_post())
> +		panic("HW POST LBIST on MCU1_x failed\n");
> +
> +	/* trigger LBIST tests on MCU1_x */
> +	ret = prepare_lbist(handle);
> +	ret |= ops->run_lbist();
> +	ret |= deprepare_lbist(handle);
> +	if (ret)
> +		panic("LBIST on MCU4_0 failed: %d\n", ret);
> +}
> +
>  /*
>   * This uninitialized global variable would normal end up in the .bss section,
>   * but the .bss is cleared between writing and reading this variable, so move
> @@ -251,6 +294,15 @@ void board_init_f(ulong dummy)
>  			printf("AVS init failed: %d\n", ret);
>  	}
>  
> +	if (!IS_ENABLED(CONFIG_CPU_V7R) && IS_ENABLED(CONFIG_K3_BIST)) {
> +		ret = uclass_get_device_by_driver(UCLASS_MISC,
> +						  DM_DRIVER_GET(k3_bist),
> +						  &dev);
> +		if (ret)
> +			panic("Failed to get BIST device: %d\n", ret);

nit: Add "\n" here

> +		run_bist_j784s4(dev);
> +	}
> +
>  	if (IS_ENABLED(CONFIG_CPU_V7R))
>  		setup_navss_nb();
>  
> -- 
> 2.34.1
> 

Regards,
Manorit