From: Vyacheslav Yurkov <[email protected]> When DDR firewall configuration is updated the F2SDRAM bridges need to be brought from reset.
Signed-off-by: Vyacheslav Yurkov <[email protected]> --- arch/arm/mach-socfpga/arria10-sdram.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/arm/mach-socfpga/arria10-sdram.c b/arch/arm/mach-socfpga/arria10-sdram.c index b7eade0b17..a6eb63299a 100644 --- a/arch/arm/mach-socfpga/arria10-sdram.c +++ b/arch/arm/mach-socfpga/arria10-sdram.c @@ -468,6 +468,18 @@ static void arria10_sdram_mmr_init(void) } } +static void arria10_f2sdram_bridges_reset(void) +{ + uint32_t val; + + /* Release F2SDRAM bridges from reset */ + val = readl(ARRIA10_RSTMGR_ADDR + ARRIA10_RSTMGR_BRGMODRST); + val &= ~(ARRIA10_RSTMGR_BRGMODRST_F2SSDRAM0 | + ARRIA10_RSTMGR_BRGMODRST_F2SSDRAM1 | + ARRIA10_RSTMGR_BRGMODRST_F2SSDRAM2); + writel(val, ARRIA10_RSTMGR_ADDR + ARRIA10_RSTMGR_BRGMODRST); +} + static int arria10_sdram_firewall_setup(void) { uint32_t mpu_en = 0; @@ -512,6 +524,8 @@ static int arria10_sdram_firewall_setup(void) writel(0xffff0000, ARRIA10_NOC_FW_DDR_L3_HPSREGION0ADDR); writel(ARRIA10_NOC_FW_DDR_L3_HPSREG0EN, ARRIA10_NOC_FW_DDR_L3_EN); + arria10_f2sdram_bridges_reset(); + return 0; } -- 2.25.1
