[PATCH v3 11/21] arm: socfpga: Secure register access for clock manager (SoC 64bits)

[chee.hong.ang at intel.com]

From: Chee Hong Ang <chee.hong.ang at intel.com>

Allow clock manager driver to access the System Manager's Boot
Scratch Register 0 in non-secure mode (EL2) on SoC 64bits platform.

Signed-off-by: Chee Hong Ang <chee.hong.ang at intel.com>
---
 arch/arm/mach-socfpga/clock_manager_agilex.c | 5 +++--
 arch/arm/mach-socfpga/clock_manager_s10.c    | 5 +++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-socfpga/clock_manager_agilex.c b/arch/arm/mach-socfpga/clock_manager_agilex.c
index 4ee2b7b..e5a0998 100644
--- a/arch/arm/mach-socfpga/clock_manager_agilex.c
+++ b/arch/arm/mach-socfpga/clock_manager_agilex.c
@@ -12,6 +12,7 @@
 #include <asm/arch/system_manager.h>
 #include <asm/io.h>
 #include <dt-bindings/clock/agilex-clock.h>
+#include <asm/arch/secure_reg_helper.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -65,8 +66,8 @@ unsigned int cm_get_l4_sys_free_clk_hz(void)
 
 u32 cm_get_qspi_controller_clk_hz(void)
 {
-	return readl(socfpga_get_sysmgr_addr() +
-		     SYSMGR_SOC64_BOOT_SCRATCH_COLD0);
+	return socfpga_secure_reg_read32(socfpga_get_sysmgr_addr() +
+					 SYSMGR_SOC64_BOOT_SCRATCH_COLD0);
 }
 
 void cm_print_clock_quick_summary(void)
diff --git a/arch/arm/mach-socfpga/clock_manager_s10.c b/arch/arm/mach-socfpga/clock_manager_s10.c
index 05e4212..02578cc 100644
--- a/arch/arm/mach-socfpga/clock_manager_s10.c
+++ b/arch/arm/mach-socfpga/clock_manager_s10.c
@@ -9,6 +9,7 @@
 #include <asm/arch/clock_manager.h>
 #include <asm/arch/handoff_s10.h>
 #include <asm/arch/system_manager.h>
+#include <asm/arch/secure_reg_helper.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -385,8 +386,8 @@ unsigned int cm_get_l4_sp_clk_hz(void)
 
 unsigned int cm_get_qspi_controller_clk_hz(void)
 {
-	return readl(socfpga_get_sysmgr_addr() +
-		     SYSMGR_SOC64_BOOT_SCRATCH_COLD0);
+	return socfpga_secure_reg_read32(socfpga_get_sysmgr_addr() +
+					 SYSMGR_SOC64_BOOT_SCRATCH_COLD0);
 }
 
 unsigned int cm_get_spi_controller_clk_hz(void)
-- 
2.7.4