From: Thor Thayer thor.thayer@linux.intel.com

Remove firewall on MPFE so that SMMU can setup/walk tables in the DDR.

Signed-off-by: Thor Thayer thor.thayer@linux.intel.com Signed-off-by: Jit Loon Lim jit.loon.lim@intel.com --- arch/arm/mach-socfpga/firewall.c | 6 ++++++ arch/arm/mach-socfpga/include/mach/base_addr_soc64.h | 1 + arch/arm/mach-socfpga/include/mach/firewall.h | 1 + 3 files changed, 8 insertions(+)

diff --git a/arch/arm/mach-socfpga/firewall.c b/arch/arm/mach-socfpga/firewall.c index 69229dc651..bbfcdbd9ae 100644 --- a/arch/arm/mach-socfpga/firewall.c +++ b/arch/arm/mach-socfpga/firewall.c @@ -104,4 +104,10 @@ void firewall_setup(void) socfpga_get_sysmgr_addr() + SYSMGR_SOC64_DMA); writel(SYSMGR_DMAPERIPH_ALL_NS, socfpga_get_sysmgr_addr() + SYSMGR_SOC64_DMA_PERIPH); + +#ifdef CONFIG_TARGET_SOCFPGA_AGILEX + /* Disable the MPFE Firewall for SMMU */ + writel(FIREWALL_MPFE_SCR_DISABLE_ALL, SOCFPGA_FW_MPFE_SCR_ADDRESS); +#endif + } diff --git a/arch/arm/mach-socfpga/include/mach/base_addr_soc64.h b/arch/arm/mach-socfpga/include/mach/base_addr_soc64.h index 3f899fcfa3..45c6458597 100644 --- a/arch/arm/mach-socfpga/include/mach/base_addr_soc64.h +++ b/arch/arm/mach-socfpga/include/mach/base_addr_soc64.h @@ -10,6 +10,7 @@ #define SOCFPGA_SDR_SCHEDULER_ADDRESS 0xf8000400 #define SOCFPGA_HMC_MMR_IO48_ADDRESS 0xf8010000 #define SOCFPGA_SDR_ADDRESS 0xf8011000 +#define SOCFPGA_FW_MPFE_SCR_ADDRESS 0xf8020000 #if IS_ENABLED(CONFIG_TARGET_SOCFPGA_AGILEX) || \ IS_ENABLED(CONFIG_TARGET_SOCFPGA_N5X) #define SOCFPGA_FW_MPU_DDR_SCR_ADDRESS 0xf8020200 diff --git a/arch/arm/mach-socfpga/include/mach/firewall.h b/arch/arm/mach-socfpga/include/mach/firewall.h index 5cb7f23f8f..885c04c27f 100644 --- a/arch/arm/mach-socfpga/include/mach/firewall.h +++ b/arch/arm/mach-socfpga/include/mach/firewall.h @@ -75,6 +75,7 @@ struct socfpga_firwall_l4_sys { };

#define FIREWALL_L4_DISABLE_ALL (BIT(0) | BIT(24) | BIT(16)) +#define FIREWALL_MPFE_SCR_DISABLE_ALL (BIT(0) | BIT(8) | BIT(16)) #define FIREWALL_BRIDGE_DISABLE_ALL (~0)

/* Cache coherency unit (CCU) registers */