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From 5d2f3f48a66a1f3f90d35679920832569100ed35 Mon Sep 17 00:00:00 2001
From: Ahmad Fatoum <a.fatoum@pengutronix.de>
Date: Wed, 13 Mar 2024 08:08:13 +0100
Subject: [PATCH 3/3] imx: disable DRAM retention by default
Building the default upstream configuration is no longer possible
Change-Id: I714f8ea96f18154db02390ba500f4a2dc5329ee7
---
plat/imx/common/include/imx_sip_svc.h | 8 ++++++++
plat/imx/imx8m/imx8mm/platform.mk | 9 ++++++++-
plat/imx/imx8m/imx8mn/platform.mk | 9 ++++++++-
plat/imx/imx8m/imx8mp/platform.mk | 9 ++++++++-
plat/imx/imx8m/imx8mq/platform.mk | 9 ++++++++-
plat/imx/imx8m/include/dram.h | 8 +++++++-
6 files changed, 47 insertions(+), 5 deletions(-)
diff --git a/plat/imx/common/include/imx_sip_svc.h b/plat/imx/common/include/imx_sip_svc.h
index 0e91c7174a52..5015eb6a1f11 100644
--- a/plat/imx/common/include/imx_sip_svc.h
+++ b/plat/imx/common/include/imx_sip_svc.h
@@ -57,8 +57,16 @@ int imx_soc_info_handler(uint32_t smc_fid, u_register_t x1,
u_register_t x2, u_register_t x3);
int imx_gpc_handler(uint32_t smc_fid, u_register_t x1,
u_register_t x2, u_register_t x3);
+#if IMX_DRAM_RETENTION
int dram_dvfs_handler(uint32_t smc_fid, void *handle,
u_register_t x1, u_register_t x2, u_register_t x3);
+#else
+static inline int dram_dvfs_handler(uint32_t smc_fid, void *handle,
+ u_register_t x1, u_register_t x2, u_register_t x3)
+{
+ SMC_RET1(handle, SMC_UNK);
+}
+#endif
#endif
#if defined(PLAT_imx8mm) || defined(PLAT_imx8mn) || defined(PLAT_imx8mp)
int dram_dvfs_handler(uint32_t smc_fid, void *handle,
diff --git a/plat/imx/imx8m/imx8mm/platform.mk b/plat/imx/imx8m/imx8mm/platform.mk
index 97f4f248824d..849ae5e4ca36 100644
--- a/plat/imx/imx8m/imx8mm/platform.mk
+++ b/plat/imx/imx8m/imx8mm/platform.mk
@@ -52,7 +52,6 @@ BL31_SOURCES += plat/imx/common/imx8_helpers.S \
drivers/delay_timer/delay_timer.c \
drivers/delay_timer/generic_delay_timer.c \
${XLAT_TABLES_LIB_SRCS} \
- ${IMX_DRAM_SOURCES} \
${IMX_GIC_SOURCES}
ifeq (${NEED_BL2},yes)
@@ -153,6 +152,14 @@ ERRATA_A53_835769 := 1
ERRATA_A53_843419 := 1
ERRATA_A53_855873 := 1
+IMX_DRAM_RETENTION ?= 1
+$(eval $(call assert_boolean,IMX_DRAM_RETENTION))
+$(eval $(call add_define,IMX_DRAM_RETENTION))
+
+ifeq (${IMX_DRAM_RETENTION},1)
+BL31_SOURCES += ${IMX_DRAM_SOURCES}
+endif
+
BL32_BASE ?= 0xbe000000
$(eval $(call add_define,BL32_BASE))
diff --git a/plat/imx/imx8m/imx8mn/platform.mk b/plat/imx/imx8m/imx8mn/platform.mk
index e0826e29a88c..94d31a2681aa 100644
--- a/plat/imx/imx8m/imx8mn/platform.mk
+++ b/plat/imx/imx8m/imx8mn/platform.mk
@@ -46,7 +46,6 @@ BL31_SOURCES += plat/imx/common/imx8_helpers.S \
drivers/arm/tzc/tzc380.c \
drivers/delay_timer/delay_timer.c \
drivers/delay_timer/generic_delay_timer.c \
- ${IMX_DRAM_SOURCES} \
${IMX_GIC_SOURCES} \
${XLAT_TABLES_LIB_SRCS}
@@ -59,6 +58,14 @@ ERRATA_A53_835769 := 1
ERRATA_A53_843419 := 1
ERRATA_A53_855873 := 1
+IMX_DRAM_RETENTION ?= 1
+$(eval $(call assert_boolean,IMX_DRAM_RETENTION))
+$(eval $(call add_define,IMX_DRAM_RETENTION))
+
+ifeq (${IMX_DRAM_RETENTION},1)
+BL31_SOURCES += ${IMX_DRAM_SOURCES}
+endif
+
BL32_BASE ?= 0xbe000000
$(eval $(call add_define,BL32_BASE))
diff --git a/plat/imx/imx8m/imx8mp/platform.mk b/plat/imx/imx8m/imx8mp/platform.mk
index ce6907195152..1f699c4f26f0 100644
--- a/plat/imx/imx8m/imx8mp/platform.mk
+++ b/plat/imx/imx8m/imx8mp/platform.mk
@@ -47,7 +47,6 @@ BL31_SOURCES += plat/imx/common/imx8_helpers.S \
drivers/arm/tzc/tzc380.c \
drivers/delay_timer/delay_timer.c \
drivers/delay_timer/generic_delay_timer.c \
- ${IMX_DRAM_SOURCES} \
${IMX_GIC_SOURCES} \
${XLAT_TABLES_LIB_SRCS}
@@ -150,6 +149,14 @@ ERRATA_A53_835769 := 1
ERRATA_A53_843419 := 1
ERRATA_A53_855873 := 1
+IMX_DRAM_RETENTION ?= 1
+$(eval $(call assert_boolean,IMX_DRAM_RETENTION))
+$(eval $(call add_define,IMX_DRAM_RETENTION))
+
+ifeq (${IMX_DRAM_RETENTION},1)
+BL31_SOURCES += ${IMX_DRAM_SOURCES}
+endif
+
BL32_BASE ?= 0x56000000
$(eval $(call add_define,BL32_BASE))
diff --git a/plat/imx/imx8m/imx8mq/platform.mk b/plat/imx/imx8m/imx8mq/platform.mk
index 648159eb3d10..f61620bd4224 100644
--- a/plat/imx/imx8m/imx8mq/platform.mk
+++ b/plat/imx/imx8m/imx8mq/platform.mk
@@ -43,7 +43,6 @@ BL31_SOURCES += plat/imx/common/imx8_helpers.S \
drivers/delay_timer/delay_timer.c \
drivers/delay_timer/generic_delay_timer.c \
${XLAT_TABLES_LIB_SRCS} \
- ${IMX_DRAM_SOURCES} \
${IMX_GIC_SOURCES}
ENABLE_PIE := 1
@@ -56,6 +55,14 @@ ERRATA_A53_835769 := 1
ERRATA_A53_843419 := 1
ERRATA_A53_855873 := 1
+IMX_DRAM_RETENTION ?= 0
+$(eval $(call assert_boolean,IMX_DRAM_RETENTION))
+$(eval $(call add_define,IMX_DRAM_RETENTION))
+
+ifeq (${IMX_DRAM_RETENTION},1)
+BL31_SOURCES += ${IMX_DRAM_SOURCES}
+endif
+
BL32_BASE ?= 0xfe000000
$(eval $(call add_define,BL32_BASE))
diff --git a/plat/imx/imx8m/include/dram.h b/plat/imx/imx8m/include/dram.h
index 719c39063778..1cf0666e9cad 100644
--- a/plat/imx/imx8m/include/dram.h
+++ b/plat/imx/imx8m/include/dram.h
@@ -70,13 +70,19 @@ struct dram_info {
extern struct dram_info dram_info;
-void dram_info_init(unsigned long dram_timing_base);
void dram_umctl2_init(struct dram_timing_info *timing);
void dram_phy_init(struct dram_timing_info *timing);
/* dram retention */
+#if IMX_DRAM_RETENTION
+void dram_info_init(unsigned long dram_timing_base);
void dram_enter_retention(void);
void dram_exit_retention(void);
+#else
+static inline void dram_info_init(unsigned long dram_timing_base) {}
+static inline void dram_enter_retention(void) {}
+static inline void dram_exit_retention(void) {}
+#endif
void dram_clock_switch(unsigned int target_drate, bool bypass_mode);
--
2.39.2
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