Allow compiling with immutable debug settings: - DEBUG_LEVEL is always set to DEBUG_LEVEL_ERROR - register dumps are disabled
This can save around 10 KiB of space in the resulting binary, which is a lot in U-Boot SPL.
Signed-off-by: Marek Behún kabel@kernel.org --- arch/arm/mach-mvebu/Kconfig | 10 +++++++ drivers/ddr/marvell/a38x/ddr3_debug.c | 9 ++++-- drivers/ddr/marvell/a38x/ddr3_init.c | 3 +- drivers/ddr/marvell/a38x/ddr3_init.h | 42 ++++++++++++++++++++++----- 4 files changed, 53 insertions(+), 11 deletions(-)
diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig index f15d3cc5ed..a320793a30 100644 --- a/arch/arm/mach-mvebu/Kconfig +++ b/arch/arm/mach-mvebu/Kconfig @@ -250,6 +250,16 @@ config DDR_LOG_LEVEL At level 3, rovides the windows margin of each DQ as a results of DQS centeralization.
+config DDR_IMMUTABLE_DEBUG_SETTINGS + bool "Immutable DDR debug level (always DEBUG_LEVEL_ERROR)" + depends on ARMADA_38X + help + Makes the DDR training code debug level settings immutable. + The debug level setting from board topology definition is ignored. + The debug level is always set to DEBUG_LEVEL_ERROR and register + dumps are disabled. + This can save around 10 KiB of space in SPL binary. + config DDR_RESET_ON_TRAINING_FAILURE bool "Reset the board on DDR training failure instead of hanging" depends on ARMADA_38X || ARMADA_XP diff --git a/drivers/ddr/marvell/a38x/ddr3_debug.c b/drivers/ddr/marvell/a38x/ddr3_debug.c index d32d42c408..0b65168d82 100644 --- a/drivers/ddr/marvell/a38x/ddr3_debug.c +++ b/drivers/ddr/marvell/a38x/ddr3_debug.c @@ -7,18 +7,21 @@ #include "mv_ddr_training_db.h" #include "mv_ddr_regs.h"
+#if !defined(CONFIG_DDR_IMMUTABLE_DEBUG_SETTINGS) u8 is_reg_dump = 0; u8 debug_pbs = DEBUG_LEVEL_ERROR; +#endif
/* * API to change flags outside of the lib */ -#if defined(SILENT_LIB) +#if defined(SILENT_LIB) || defined(CONFIG_DDR_IMMUTABLE_DEBUG_SETTINGS) void ddr3_hws_set_log_level(enum ddr_lib_debug_block block, u8 level) { /* do nothing */ } -#else /* SILENT_LIB */ +#else /* !SILENT_LIB && !CONFIG_DDR_IMMUTABLE_DEBUG_SETTINGS */ + /* Debug flags for other Training modules */ u8 debug_training_static = DEBUG_LEVEL_ERROR; u8 debug_training = DEBUG_LEVEL_ERROR; @@ -104,7 +107,7 @@ void ddr3_hws_set_log_level(enum ddr_lib_debug_block block, u8 level) #endif /* CONFIG_DDR4 */ } } -#endif /* SILENT_LIB */ +#endif /* !SILENT_LIB && !CONFIG_DDR_IMMUTABLE_DEBUG_SETTINGS */
#if defined(DDR_VIEWER_TOOL) static char *convert_freq(enum mv_ddr_freq freq); diff --git a/drivers/ddr/marvell/a38x/ddr3_init.c b/drivers/ddr/marvell/a38x/ddr3_init.c index 27eb3ac173..7c5147f474 100644 --- a/drivers/ddr/marvell/a38x/ddr3_init.c +++ b/drivers/ddr/marvell/a38x/ddr3_init.c @@ -41,7 +41,8 @@ int ddr3_init(void) mv_ddr_pre_training_soc_config(ddr_type);
/* Set log level for training library */ - mv_ddr_user_log_level_set(DEBUG_BLOCK_ALL); + if (!IS_ENABLED(CONFIG_DDR_IMMUTABLE_DEBUG_SETTINGS)) + mv_ddr_user_log_level_set(DEBUG_BLOCK_ALL);
mv_ddr_early_init();
diff --git a/drivers/ddr/marvell/a38x/ddr3_init.h b/drivers/ddr/marvell/a38x/ddr3_init.h index 9288073a78..b513a13c53 100644 --- a/drivers/ddr/marvell/a38x/ddr3_init.h +++ b/drivers/ddr/marvell/a38x/ddr3_init.h @@ -45,15 +45,46 @@ enum log_level { #define MISL_PHY_ODT_N_OFFS 0x0
/* Globals */ -extern u8 debug_training, debug_calibration, debug_ddr4_centralization, - debug_tap_tuning, debug_dm_tuning; +#if defined(CONFIG_DDR_IMMUTABLE_DEBUG_SETTINGS) +static const u8 is_reg_dump = 0; +static const u8 debug_training_static = DEBUG_LEVEL_ERROR; +static const u8 debug_training = DEBUG_LEVEL_ERROR; +static const u8 debug_leveling = DEBUG_LEVEL_ERROR; +static const u8 debug_centralization = DEBUG_LEVEL_ERROR; +static const u8 debug_training_ip = DEBUG_LEVEL_ERROR; +static const u8 debug_training_bist = DEBUG_LEVEL_ERROR; +static const u8 debug_training_hw_alg = DEBUG_LEVEL_ERROR; +static const u8 debug_training_access = DEBUG_LEVEL_ERROR; +static const u8 debug_training_device = DEBUG_LEVEL_ERROR; +static const u8 debug_pbs = DEBUG_LEVEL_ERROR; + +static const u8 debug_tap_tuning = DEBUG_LEVEL_ERROR; +static const u8 debug_calibration = DEBUG_LEVEL_ERROR; +static const u8 debug_ddr4_centralization = DEBUG_LEVEL_ERROR; +static const u8 debug_dm_tuning = DEBUG_LEVEL_ERROR; +#else /* !CONFIG_DDR_IMMUTABLE_DEBUG_SETTINGS */ extern u8 is_reg_dump; +extern u8 debug_training_static; +extern u8 debug_training; +extern u8 debug_leveling; +extern u8 debug_centralization; +extern u8 debug_training_ip; +extern u8 debug_training_bist; +extern u8 debug_training_hw_alg; +extern u8 debug_training_access; +extern u8 debug_training_device; +extern u8 debug_pbs; + +extern u8 debug_tap_tuning; +extern u8 debug_calibration; +extern u8 debug_ddr4_centralization; +extern u8 debug_dm_tuning; +#endif /* !CONFIG_DDR_IMMUTABLE_DEBUG_SETTINGS */ + extern u8 generic_init_controller; /* list of allowed frequency listed in order of enum mv_ddr_freq */ extern u32 is_pll_old; extern struct pattern_info pattern_table[]; -extern u8 debug_centralization, debug_training_ip, debug_training_bist, - debug_pbs, debug_training_static, debug_leveling; extern struct hws_tip_config_func_db config_func_info[]; extern u8 twr_mask_table[]; extern u8 cl_mask_table[]; @@ -76,7 +107,6 @@ extern u32 g_rtt_nom; extern u32 g_rtt_wr; extern u32 g_rtt_park;
-extern u8 debug_training_access; extern u32 first_active_if; extern u32 delay_enable, ck_delay, ca_delay; extern u32 mask_tune_func; @@ -122,8 +152,6 @@ extern u32 effective_cs; extern int ddr3_tip_centr_skip_min_win_check; extern u32 *dq_map_table;
-extern u8 debug_training_hw_alg; - extern u32 start_xsb_offset; extern u32 odt_config;