Tegra186: Update API for reset vector ARI

The TEGRA_ARI_COPY_MISCREG_AA64_RST ARI should be called with
request_lo/hi set to zero. MTS automatically takes the reset
vector from MISCREG_AA64_RST register and does not need it to
be passed as parameters.  This patch updates the API and the
caller function accordingly.

Change-Id: Ie3e3402d93951102239d988ca9f0cdf94f290d2f
Signed-off-by: Krishna Sitaraman <ksitaraman@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

plat/nvidia/tegra/soc/t186/drivers/include/mce.h

@@ -338,9 +338,7 @@ typedef struct arch_mce_ops {
 	 * This ARI request allows updating the reset vector register for
 	 * D15 and A57 CPUs.
 	 */
-	int (*update_reset_vector)(uint32_t ari_base,
-				   uint32_t addr_low,
-				   uint32_t addr_high);
+	int (*update_reset_vector)(uint32_t ari_base);
 	/*
 	 * This ARI request instructs the ROC to flush A57 data caches in
 	 * order to maintain coherency with the Denver cluster.
@@ -397,7 +395,7 @@ typedef struct arch_mce_ops {
 
 int mce_command_handler(mce_cmd_t cmd, uint64_t arg0, uint64_t arg1,
 		uint64_t arg2);
-int mce_update_reset_vector(uint32_t addr_lo, uint32_t addr_hi);
+int mce_update_reset_vector(void);
 int mce_update_gsc_videomem(void);
 int mce_update_gsc_tzdram(void);
 int mce_update_gsc_tzram(void);
@@ -418,7 +416,7 @@ int ari_is_ccx_allowed(uint32_t ari_base, uint32_t state, uint32_t wake_time);
 int ari_is_sc7_allowed(uint32_t ari_base, uint32_t state, uint32_t wake_time);
 int ari_online_core(uint32_t ari_base, uint32_t core);
 int ari_cc3_ctrl(uint32_t ari_base, uint32_t freq, uint32_t volt, uint8_t enable);
-int ari_reset_vector_update(uint32_t ari_base, uint32_t lo, uint32_t hi);
+int ari_reset_vector_update(uint32_t ari_base);
 int ari_roc_flush_cache_trbits(uint32_t ari_base);
 int ari_roc_flush_cache(uint32_t ari_base);
 int ari_roc_clean_cache(uint32_t ari_base);

plat/nvidia/tegra/soc/t186/drivers/mce/ari.c

@@ -334,7 +334,7 @@ int ari_cc3_ctrl(uint32_t ari_base, uint32_t freq, uint32_t volt, uint8_t enable
 	return ari_request_wait(ari_base, 0, TEGRA_ARI_CC3_CTRL, val, 0);
 }
 
-int ari_reset_vector_update(uint32_t ari_base, uint32_t lo, uint32_t hi)
+int ari_reset_vector_update(uint32_t ari_base)
 {
 	/* clean the previous response state */
 	ari_clobber_response(ari_base);
@@ -343,7 +343,7 @@ int ari_reset_vector_update(uint32_t ari_base, uint32_t lo, uint32_t hi)
 	 * Need to program the CPU reset vector one time during cold boot
 	 * and SC7 exit
 	 */
-	ari_request_wait(ari_base, 0, TEGRA_ARI_COPY_MISCREG_AA64_RST, lo, hi);
+	ari_request_wait(ari_base, 0, TEGRA_ARI_COPY_MISCREG_AA64_RST, 0, 0);
 
 	return 0;
 }

plat/nvidia/tegra/soc/t186/drivers/mce/mce.c

@@ -403,11 +403,11 @@ int mce_command_handler(mce_cmd_t cmd, uint64_t arg0, uint64_t arg1,
 /*******************************************************************************
  * Handler to update the reset vector for CPUs
  ******************************************************************************/
-int mce_update_reset_vector(uint32_t addr_lo, uint32_t addr_hi)
+int mce_update_reset_vector(void)
 {
 	arch_mce_ops_t *ops = mce_get_curr_cpu_ops();
 
-	ops->update_reset_vector(mce_get_curr_cpu_ari_base(), addr_lo, addr_hi);
+	ops->update_reset_vector(mce_get_curr_cpu_ari_base());
 
 	return 0;
 }

plat/nvidia/tegra/soc/t186/plat_secondary.c

@@ -91,5 +91,5 @@ void plat_secondary_setup(void)
 			addr_high);
 
 	/* update reset vector address to the CCPLEX */
-	mce_update_reset_vector(addr_low, addr_high);
+	mce_update_reset_vector();
 }