From ba2cfcee889db2de099c46a60090624edf202a81 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Tue, 16 Apr 2019 22:13:29 +0200 Subject: [PATCH] ARM: socfpga: Fully unmap the FPGA bridges from L3 space Instead of just putting the bridges into reset, fully remove the bridges from the L3 main bridge space when disabling them by clearing bits in NIC-301 remap register. Moreover, only touch the 3 LSbits in brgmodrst register as the rest of the bits are undefined. Signed-off-by: Marek Vasut Cc: Chin Liang See Cc: Dinh Nguyen Cc: Simon Goldschmidt Cc: Tien Fong Chee --- arch/arm/mach-socfpga/reset_manager_gen5.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-socfpga/reset_manager_gen5.c b/arch/arm/mach-socfpga/reset_manager_gen5.c index 66af924485..89a384b59c 100644 --- a/arch/arm/mach-socfpga/reset_manager_gen5.c +++ b/arch/arm/mach-socfpga/reset_manager_gen5.c @@ -103,7 +103,8 @@ void socfpga_bridges_reset(int enable) if (enable) { /* brdmodrst */ - writel(0xffffffff, &reset_manager_base->brg_mod_reset); + writel(0x7, &reset_manager_base->brg_mod_reset); + writel(L3REGS_REMAP_OCRAM_MASK, SOCFPGA_L3REGS_ADDRESS); } else { socfpga_bridges_set_handoff_regs(false, false, false); -- 2.25.1