From patchwork Fri Feb 21 05:47:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Ang, Chee Hong" X-Patchwork-Id: 236690 List-Id: U-Boot discussion From: chee.hong.ang at intel.com (chee.hong.ang at intel.com) Date: Thu, 20 Feb 2020 21:47:36 -0800 Subject: [PATCH v3 18/21] arm: socfpga: Bridge reset invokes SMC service calls in EL2 In-Reply-To: <1582264059-37988-1-git-send-email-chee.hong.ang@intel.com> References: <1582264059-37988-1-git-send-email-chee.hong.ang@intel.com> Message-ID: <1582264059-37988-19-git-send-email-chee.hong.ang@intel.com> From: Chee Hong Ang In EL3, do_bridge_reset() directly send mailbox commands to SDM to query the FPGA configuration status. If running in non-secure mode (EL2), it invokes SMC service calls to ATF (EL3) to perform the query. Signed-off-by: Chee Hong Ang --- arch/arm/mach-socfpga/misc_s10.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-socfpga/misc_s10.c b/arch/arm/mach-socfpga/misc_s10.c index 393b486..d93aaf5 100644 --- a/arch/arm/mach-socfpga/misc_s10.c +++ b/arch/arm/mach-socfpga/misc_s10.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -154,11 +155,24 @@ void do_bridge_reset(int enable, unsigned int mask) { /* Check FPGA status before bridge enable */ if (enable) { +#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_ATF) + u64 arg = 1; + + /* Send MBOX_RECONFIG_STATUS to SDM */ + int ret = invoke_smc(INTEL_SIP_SMC_FPGA_CONFIG_ISDONE, NULL, 0, + NULL, 0); + + if (ret && ret != INTEL_SIP_SMC_FPGA_CONFIG_STATUS_BUSY) { + /* Send MBOX_CONFIG_STATUS to SDM */ + ret = invoke_smc(INTEL_SIP_SMC_FPGA_CONFIG_ISDONE, + &arg, 1, NULL, 0); + } +#else 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); - +#endif if (ret) return; }