[PATCH] arch: mach-k3: j721s2_init: Disable the firewalls

[Manorit Chawdhry]

On 18:32-20230328, Jayesh Choudhary wrote:
> Some firewalls enabled by ROM are still left on. So some
> address space is inaccessible to the bootloader. For example,
> in OSPI boot mode we get an exception and the system hangs.
> Therefore, disable all the firewalls left on by the ROM.
> 
> Signed-off-by: Jayesh Choudhary <j-choudhary at ti.com>
> ---
>  arch/arm/mach-k3/j721s2_init.c | 53 ++++++++++++++++++++++++++++++++++
>  1 file changed, 53 insertions(+)
> 
> diff --git a/arch/arm/mach-k3/j721s2_init.c b/arch/arm/mach-k3/j721s2_init.c
> index 09e55ed456..7d347b5156 100644
> --- a/arch/arm/mach-k3/j721s2_init.c
> +++ b/arch/arm/mach-k3/j721s2_init.c
> @@ -22,6 +22,51 @@
>  #include <mmc.h>
>  #include <remoteproc.h>
>  
> +struct fwl_data cbass_hc_cfg0_fwls[] = {
> +	{ "PCIE0_CFG", 2577, 7 },
> +	{ "EMMC8SS0_CFG", 2579, 4 },
> +	{ "USB3SS0_CORE", 2580, 4 },
> +	{ "USB3SS1_CORE", 2581, 1 },
> +}, cbass_hc2_fwls[] = {
> +	{ "PCIE0", 2547, 24 },
> +	{ "HC2_WIZ16B8M4CT2", 2552, 1 },
> +}, cbass_rc_cfg0_fwls[] = {
> +	{ "EMMCSD4SS0_CFG", 2400, 4 },
> +}, infra_cbass0_fwls[] = {
> +	{ "PSC0", 5, 1 },
> +	{ "PLL_CTRL0", 6, 1 },
> +	{ "PLL_MMR0", 8, 26 },
> +	{ "CTRL_MMR0", 9, 16 },
> +	{ "GPIO0", 16, 1 },
> +}, mcu_cbass0_fwls[] = {
> +	{ "MCU_R5FSS0_CORE0", 1024, 4 },
> +	{ "MCU_R5FSS0_CORE0_CFG", 1025, 3 },
> +	{ "MCU_R5FSS0_CORE1", 1028, 4 },
> +	{ "MCU_R5FSS0_CORE1_CFG", 1029, 1 },
> +	{ "MCU_FSS0_CFG", 1032, 12 },
> +	{ "MCU_FSS0_S1", 1033, 8 },
> +	{ "MCU_FSS0_S0", 1036, 8 },
> +	{ "MCU_PSROM49152X32", 1048, 1 },
> +	{ "MCU_MSRAM128KX64", 1050, 8 },
> +	{ "MCU_MSRAM128KX64_CFG", 1051, 1 },
> +	{ "MCU_TIMER0", 1056, 1 },
> +	{ "MCU_TIMER9", 1065, 1 },
> +	{ "MCU_USART0", 1120, 1 },
> +	{ "MCU_I2C0", 1152, 1 },
> +	{ "MCU_CTRL_MMR0", 1200, 8 },
> +	{ "MCU_PLL_MMR0", 1201, 3 },
> +	{ "MCU_CPSW0", 1220, 2 },
> +}, wkup_cbass0_fwls[] = {
> +	{ "WKUP_PSC0", 129, 1 },
> +	{ "WKUP_PLL_CTRL0", 130, 1 },
> +	{ "WKUP_CTRL_MMR0", 131, 16 },
> +	{ "WKUP_GPIO0", 132, 1 },
> +	{ "WKUP_I2C0", 144, 1 },
> +	{ "WKUP_USART0", 160, 1 },
> +}, navss_cbass0_fwls[] = {
> +	{ "NACSS_VIRT0", 6253, 1 },
> +};
> +
>  static void ctrl_mmr_unlock(void)
>  {
>  	/* Unlock all WKUP_CTRL_MMR0 module registers */
> @@ -150,6 +195,14 @@ void k3_spl_init(void)
>  			if (ret)
>  				panic("Failed to initialize clk-k3!\n");
>  		}
> +
> +		remove_fwl_configs(cbass_hc_cfg0_fwls, ARRAY_SIZE(cbass_hc_cfg0_fwls));
> +		remove_fwl_configs(cbass_hc2_fwls, ARRAY_SIZE(cbass_hc2_fwls));
> +		remove_fwl_configs(cbass_rc_cfg0_fwls, ARRAY_SIZE(cbass_rc_cfg0_fwls));
> +		remove_fwl_configs(infra_cbass0_fwls, ARRAY_SIZE(infra_cbass0_fwls));
> +		remove_fwl_configs(mcu_cbass0_fwls, ARRAY_SIZE(mcu_cbass0_fwls));
> +		remove_fwl_configs(wkup_cbass0_fwls, ARRAY_SIZE(wkup_cbass0_fwls));
> +		remove_fwl_configs(navss_cbass0_fwls, ARRAY_SIZE(navss_cbass0_fwls));
>  	}
>  
>  	/* Output System Firmware version info */
> -- 

Reviewed-by: Manorit Chawdhry <m-chawdhry at ti.com>

- Manorit

> 2.25.1
>