From: "Ang, Chee Hong" <[email protected]> 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 <[email protected]> --- arch/arm/mach-socfpga/misc_s10.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm/mach-socfpga/misc_s10.c b/arch/arm/mach-socfpga/misc_s10.c index 113eace..0e4133f 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) { + /* 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); } -- 2.7.4 _______________________________________________ U-Boot mailing list [email protected] https://lists.denx.de/listinfo/u-boot
