From: Thor Thayer <thor.tha...@linux.intel.com> Enable TCU access through the Stratix10 CCU so that the SMMU can access the SDRAM.
Signed-off-by: Thor Thayer <thor.tha...@linux.intel.com> --- v2 Rebase patch on top of pending patchset [PATCH v8 00/19] Add Intel Agilex SoC support https://patchwork.ozlabs.org/cover/1201373/ --- arch/arm/mach-socfpga/include/mach/firewall.h | 7 +++++++ drivers/ddr/altera/sdram_s10.c | 14 ++++++++++++++ 2 files changed, 21 insertions(+) diff --git a/arch/arm/mach-socfpga/include/mach/firewall.h b/arch/arm/mach-socfpga/include/mach/firewall.h index 516bd1c0e1ec..430341bea14c 100644 --- a/arch/arm/mach-socfpga/include/mach/firewall.h +++ b/arch/arm/mach-socfpga/include/mach/firewall.h @@ -95,6 +95,13 @@ struct socfpga_firwall_l4_sys { #define CCU_IOM_MPRT_ADMASK_MEM_RAM0 0x18628 +#define CCU_TCU_MPRT_ADBASE_MEMSPACE0 0x2c520 +#define CCU_TCU_MPRT_ADBASE_MEMSPACE1A 0x2c540 +#define CCU_TCU_MPRT_ADBASE_MEMSPACE1B 0x2c560 +#define CCU_TCU_MPRT_ADBASE_MEMSPACE1C 0x2c580 +#define CCU_TCU_MPRT_ADBASE_MEMSPACE1D 0x2c5a0 +#define CCU_TCU_MPRT_ADBASE_MEMSPACE1E 0x2c5c0 + #define CCU_ADMASK_P_MASK BIT(0) #define CCU_ADMASK_NS_MASK BIT(1) diff --git a/drivers/ddr/altera/sdram_s10.c b/drivers/ddr/altera/sdram_s10.c index fcab3ae3e4ba..a7bf82e4e5ce 100644 --- a/drivers/ddr/altera/sdram_s10.c +++ b/drivers/ddr/altera/sdram_s10.c @@ -104,6 +104,20 @@ int sdram_mmr_init_full(struct udevice *dev) clrbits_le32(CCU_REG_ADDR(CCU_IOM_MPRT_ADBASE_MEMSPACE1E), CCU_ADBASE_DI_MASK); + /* Enable access to DDR from TCU */ + clrbits_le32(CCU_REG_ADDR(CCU_TCU_MPRT_ADBASE_MEMSPACE0), + CCU_ADBASE_DI_MASK); + clrbits_le32(CCU_REG_ADDR(CCU_TCU_MPRT_ADBASE_MEMSPACE1A), + CCU_ADBASE_DI_MASK); + clrbits_le32(CCU_REG_ADDR(CCU_TCU_MPRT_ADBASE_MEMSPACE1B), + CCU_ADBASE_DI_MASK); + clrbits_le32(CCU_REG_ADDR(CCU_TCU_MPRT_ADBASE_MEMSPACE1C), + CCU_ADBASE_DI_MASK); + clrbits_le32(CCU_REG_ADDR(CCU_TCU_MPRT_ADBASE_MEMSPACE1D), + CCU_ADBASE_DI_MASK); + clrbits_le32(CCU_REG_ADDR(CCU_TCU_MPRT_ADBASE_MEMSPACE1E), + CCU_ADBASE_DI_MASK); + /* this enables nonsecure access to DDR */ /* mpuregion0addr_limit */ FW_MPU_DDR_SCR_WRITEL(0xFFFF0000, FW_MPU_DDR_SCR_MPUREGION0ADDR_LIMIT); -- 2.7.4
