arm: mach-imx: tzasc: convert to cpu_is_mx8xyz macros

Instead of passing in configuration parameters at runtime we can utilize
the `cpu_is_mx8xyz` macro family to determine which bits should be set.

As the tzasc driver is imx specific, all functions are prefixed with
`imx8m_` as well.

Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Stefan Kerkmann <s.kerkmann@pengutronix.de>
Link: https://lore.barebox.org/20240228-v2024-02-0-topic-imx8m-n-p-tzac-v2-3-ee1ae48dc399@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

4 files changed, 12 insertions, 31 deletions

diff --git a/arch/arm/mach-imx/atf.c b/arch/arm/mach-imx/atf.c
index e8060ebd95..9cbc38ef11 100644
--- a/arch/arm/mach-imx/atf.c
+++ b/arch/arm/mach-imx/atf.c
@@ -158,7 +158,7 @@ __noreturn void __imx8mm_load_and_start_image_via_tfa(void *bl33)
 		size_t bl32_size;
 		void *bl32_image;
 
-		imx8mm_tzc380_init();
+		imx8m_tzc380_init();
 		get_builtin_firmware_ext(imx8mm_bl32_bin,
 				bl33, &bl32_image,
 				&bl32_size);
@@ -229,7 +229,7 @@ __noreturn void __imx8mp_load_and_start_image_via_tfa(void *bl33)
 		size_t bl32_size;
 		void *bl32_image;
 
-		imx8mp_tzc380_init();
+		imx8m_tzc380_init();
 		get_builtin_firmware_ext(imx8mp_bl32_bin,
 				bl33, &bl32_image,
 				&bl32_size);
@@ -301,7 +301,7 @@ __noreturn void __imx8mn_load_and_start_image_via_tfa(void *bl33)
 		size_t bl32_size;
 		void *bl32_image;
 
-		imx8mn_tzc380_init();
+		imx8m_tzc380_init();
 		get_builtin_firmware_ext(imx8mn_bl32_bin,
 				bl33, &bl32_image,
 				&bl32_size);
@@ -366,7 +366,7 @@ __noreturn void __imx8mq_load_and_start_image_via_tfa(void *bl33)
 		size_t bl32_size;
 		void *bl32_image;
 
-		imx8mq_tzc380_init();
+		imx8m_tzc380_init();
 		get_builtin_firmware_ext(imx8mq_bl32_bin,
 				bl33, &bl32_image,
 				&bl32_size);
diff --git a/arch/arm/mach-imx/tzasc.c b/arch/arm/mach-imx/tzasc.c
index 1f8d7426c1..4cb4d7c5cf 100644
--- a/arch/arm/mach-imx/tzasc.c
+++ b/arch/arm/mach-imx/tzasc.c
@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 
+#include <mach/imx/generic.h>
 #include <mach/imx/tzasc.h>
 #include <linux/bitops.h>
 #include <mach/imx/imx8m-regs.h>
@@ -13,7 +14,7 @@
 #define MX8M_TZASC_REGION_ATTRIBUTES_0		(MX8M_TZASC_BASE_ADDR + 0x108)
 #define MX8M_TZASC_REGION_ATTRIBUTES_0_SP	GENMASK(31, 28)
 
-static void enable_tzc380(bool bypass_id_swap, bool bypass_id_swap_lock)
+void imx8m_tzc380_init(void)
 {
 	u32 __iomem *gpr = IOMEM(MX8M_IOMUXC_GPR_BASE_ADDR);
 
@@ -25,14 +26,14 @@ static void enable_tzc380(bool bypass_id_swap, bool bypass_id_swap_lock)
 	 * According to TRM, TZASC_ID_SWAP_BYPASS should be set in
 	 * order to avoid AXI Bus errors when GPU is in use
 	 */
-	if (bypass_id_swap)
+	if (cpu_is_mx8mm() || cpu_is_mx8mn() || cpu_is_mx8mp())
 		setbits_le32(&gpr[10], GPR_TZASC_ID_SWAP_BYPASS);
 
 	/*
 	 * imx8mn and imx8mp implements the lock bit for
 	 * TZASC_ID_SWAP_BYPASS, enable it to lock settings
 	 */
-	if (bypass_id_swap_lock)
+	if (cpu_is_mx8mn() || cpu_is_mx8mp())
 		setbits_le32(&gpr[10], GPR_TZASC_ID_SWAP_BYPASS_LOCK);
 
 	/*
@@ -44,23 +45,7 @@ static void enable_tzc380(bool bypass_id_swap, bool bypass_id_swap_lock)
 		   MX8M_TZASC_REGION_ATTRIBUTES_0);
 }
 
-void imx8mq_tzc380_init(void)
-{
-	enable_tzc380(false, false);
-}
-
-void imx8mm_tzc380_init(void)
-{
-	enable_tzc380(true, false);
-}
-
-void imx8mn_tzc380_init(void) __alias(imx8mp_tzc380_init);
-void imx8mp_tzc380_init(void)
-{
-	enable_tzc380(true, true);
-}
-
-bool tzc380_is_enabled(void)
+bool imx8m_tzc380_is_enabled(void)
 {
 	u32 __iomem *gpr = IOMEM(MX8M_IOMUXC_GPR_BASE_ADDR);
 
diff --git a/drivers/soc/imx/soc-imx8m.c b/drivers/soc/imx/soc-imx8m.c
index 48b42a1b17..1b47c914de 100644
--- a/drivers/soc/imx/soc-imx8m.c
+++ b/drivers/soc/imx/soc-imx8m.c
@@ -208,7 +208,7 @@ static int imx8_soc_imx8m_init(struct soc_device_attribute *soc_dev_attr)
 	imx_set_reset_reason(src + IMX7_SRC_SRSR, imx7_reset_reasons);
 	pr_info("%s unique ID: %s\n", cputypestr, uid);
 
-	if (IS_ENABLED(CONFIG_PBL_OPTEE) && tzc380_is_enabled()) {
+	if (IS_ENABLED(CONFIG_PBL_OPTEE) && imx8m_tzc380_is_enabled()) {
 		static struct of_optee_fixup_data optee_fixup_data = {
 			.shm_size = OPTEE_SHM_SIZE,
 			.method = "smc",
diff --git a/include/mach/imx/tzasc.h b/include/mach/imx/tzasc.h
index 724ba50ead..51c86f168e 100644
--- a/include/mach/imx/tzasc.h
+++ b/include/mach/imx/tzasc.h
@@ -6,11 +6,7 @@
 #include <linux/types.h>
 #include <asm/system.h>
 
-void imx8mq_tzc380_init(void);
-void imx8mm_tzc380_init(void);
-void imx8mn_tzc380_init(void);
-void imx8mp_tzc380_init(void);
-
-bool tzc380_is_enabled(void);
+void imx8m_tzc380_init(void);
+bool imx8m_tzc380_is_enabled(void);
 
 #endif