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arm: socfpga: soc64: Add ATF support for Reset Manager driver

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In non-secure mode (EL2), Reset Manager driver calls the
SMC/PSCI service provided by ATF to enable/disable the
SOCFPGA bridges.

Signed-off-by: Chee Hong Ang <chee.hong.ang@intel.com>
Signed-off-by: Siew Chin Lim <elly.siew.chin.lim@intel.com>
This commit is contained in:
Chee Hong Ang 2020-12-24 18:21:06 +08:00 committed by Ley Foon Tan
parent a90ae0167b
commit 018d27f251
1 changed files with 13 additions and 0 deletions
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13
arch/arm/mach-socfpga/reset_manager_s10.c
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@ -5,11 +5,14 @@
*/
#include <common.h>
#include <hang.h>
#include <asm/io.h>
#include <asm/arch/reset_manager.h>
#include <asm/arch/smc_api.h>
#include <asm/arch/system_manager.h>
#include <dt-bindings/reset/altr,rst-mgr-s10.h>
#include <linux/iopoll.h>
#include <linux/intel-smc.h>
DECLARE_GLOBAL_DATA_PTR;
@ -55,6 +58,15 @@ void socfpga_per_reset_all(void)
void socfpga_bridges_reset(int enable)
{
#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_ATF)
u64 arg = enable;
int ret = invoke_smc(INTEL_SIP_SMC_HPS_SET_BRIDGES, &arg, 1, NULL, 0);
if (ret) {
printf("SMC call failed with error %d in %s.\n", ret, __func__);
return;
}
#else
u32 reg;
if (enable) {
@ -101,6 +113,7 @@ void socfpga_bridges_reset(int enable)
/* Disable NOC timeout */
writel(0, socfpga_get_sysmgr_addr() + SYSMGR_SOC64_NOC_TIMEOUT);
}
#endif
}
/*