diff options
| author | Ang, Chee Hong <chee.hong.ang@intel.com> | 2019-05-03 01:18:27 -0700 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2019-05-06 12:44:45 +0200 |
| commit | 32e308dd796f34f85d1c088e3218fa3403a9080f (patch) | |
| tree | 32bd274c80d04abc847c38b32dca225ac4ef15bd | |
| parent | a03e9d9fe5e2645be1c053b2765cfe6a9126d362 (diff) | |
ARM: socfpga: stratix10: Probe FPGA status before bridge enable
Send CONFIG_STATUS and RECONFIG_STATUS mailbox commands to Secure
Device Manager (SDM) to get the status of FPGA and make sure the
FPGA is in user mode before enable the bridge.
Signed-off-by: Ang, Chee Hong <chee.hong.ang@intel.com>
| -rw-r--r-- | arch/arm/mach-socfpga/misc_s10.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/mach-socfpga/misc_s10.c b/arch/arm/mach-socfpga/misc_s10.c index 60c96090ce..29abc4a54c 100644 --- a/arch/arm/mach-socfpga/misc_s10.c +++ b/arch/arm/mach-socfpga/misc_s10.c @@ -16,6 +16,7 @@ #include <asm/arch/misc.h> #include <asm/pl310.h> #include <linux/libfdt.h> +#include <asm/arch/mailbox_s10.h> #include <dt-bindings/reset/altr,rst-mgr-s10.h> @@ -152,5 +153,16 @@ int arch_early_init_r(void) void do_bridge_reset(int enable, unsigned int mask) { + /* Check FPGA status before bridge enable */ + if (enable) { + int ret = mbox_get_fpga_config_status(MBOX_RECONFIG_STATUS); + + if (ret && ret != MBOX_CFGSTAT_STATE_CONFIG) + ret = mbox_get_fpga_config_status(MBOX_CONFIG_STATUS); + + if (ret) + return; + } + socfpga_bridges_reset(enable); } |