drivers: firewall: stm32_etzpc: remove header file

Remove stm32_etzpc.h header file that is not required since the
declared and defined resources are used internally in stm32_etzpc.c

By the way, also remove inclusion of stm32mp15-etzpc.h DT bindings
header file from stm32_rng.c where it is not needed.

Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>

core/arch/arm/plat-stm32mp1/main.c

@@ -11,7 +11,6 @@
 #include <drivers/gic.h>
 #include <drivers/pinctrl.h>
 #include <drivers/stm32_bsec.h>
-#include <drivers/stm32_etzpc.h>
 #include <drivers/stm32_gpio.h>
 #include <drivers/stm32_iwdg.h>
 #include <drivers/stm32_uart.h>

core/drivers/firewall/stm32_etzpc.c

@@ -14,7 +14,6 @@
 #include <drivers/clk_dt.h>
 #include <drivers/firewall.h>
 #include <drivers/firewall_device.h>
-#include <drivers/stm32_etzpc.h>
 #include <drivers/stm32mp_dt_bindings.h>
 #ifdef CFG_STM32MP15
 #include <drivers/stm32mp1_rcc.h>
@@ -67,6 +66,15 @@
 #define TZMA_PM_LOCK_BIT		BIT(15)
 #define TZMA_PM_VALUE_MASK		GENMASK_32(9, 0)
 
+/* ETZPC DECPROT bit field values */
+enum etzpc_decprot_attributes {
+	ETZPC_DECPROT_S_RW = 0,
+	ETZPC_DECPROT_NS_R_S_W = 1,
+	ETZPC_DECPROT_MCU_ISOLATION = 2,
+	ETZPC_DECPROT_NS_RW = 3,
+	ETZPC_DECPROT_MAX = 4,
+};
+
 /*
  * struct stm32_etzpc_platdata - Driver data set at initialization
  *
@@ -218,7 +226,7 @@ static void etzpc_configure_decprot(uint32_t decprot_id,
 	etzpc_unlock(exceptions);
 }
 
-enum etzpc_decprot_attributes etzpc_get_decprot(uint32_t decprot_id)
+static enum etzpc_decprot_attributes etzpc_get_decprot(uint32_t decprot_id)
 {
 	size_t offset = U(4) * (decprot_id / IDS_PER_DECPROT_REGS);
 	uint32_t shift = (decprot_id % IDS_PER_DECPROT_REGS) << DECPROT_SHIFT;
@@ -260,7 +268,7 @@ static bool decprot_is_locked(uint32_t decprot_id)
 	return io_read32(base + offset + ETZPC_DECPROT_LOCK0) & mask;
 }
 
-void etzpc_configure_tzma(uint32_t tzma_id, uint16_t tzma_value)
+static void etzpc_configure_tzma(uint32_t tzma_id, uint16_t tzma_value)
 {
 	size_t offset = sizeof(uint32_t) * tzma_id;
 	vaddr_t base = etzpc_device->pdata.base.va;

core/drivers/stm32_rng.c

@@ -7,10 +7,6 @@
 #include <drivers/clk.h>
 #include <drivers/clk_dt.h>
 #include <drivers/rstctrl.h>
-#if defined(CFG_STM32MP15)
-#include <drivers/stm32_etzpc.h>
-#include <dt-bindings/firewall/stm32mp15-etzpc.h>
-#endif /* defined(CFG_STM32MP15) */
 #include <io.h>
 #include <kernel/delay.h>
 #include <kernel/dt.h>