ddr: marvell: a38x: old: Backport immutable debug settings

Backport the option to compile with immutable debug settings also to
the old implementation of the DDR3 training code.

The original PR for mv-ddr-marvell can be seen at
  https://github.com/MarvellEmbeddedProcessors/mv-ddr-marvell/pull/45/

Signed-off-by: Marek Behún <kabel@kernel.org>

3 files changed, 54 insertions, 23 deletions

diff --git a/drivers/ddr/marvell/a38x/old/ddr3_debug.c b/drivers/ddr/marvell/a38x/old/ddr3_debug.c
index d8bd328dfdb..d559a84a68e 100644
--- a/drivers/ddr/marvell/a38x/old/ddr3_debug.c
+++ b/drivers/ddr/marvell/a38x/old/ddr3_debug.c
@@ -12,13 +12,15 @@
 
 #include "ddr3_init.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
  */
-#ifndef SILENT_LIB
+#if !defined(SILENT_LIB) && !defined(CONFIG_DDR_IMMUTABLE_DEBUG_SETTINGS)
 /* Debug flags for other Training modules */
 u8 debug_training_static = DEBUG_LEVEL_ERROR;
 u8 debug_training = DEBUG_LEVEL_ERROR;
@@ -83,12 +85,13 @@ void ddr3_hws_set_log_level(enum ddr_lib_debug_block block, u8 level)
 #endif
 
 struct hws_tip_config_func_db config_func_info[HWS_MAX_DEVICE_NUM];
-u8 is_default_centralization = 0;
-u8 is_tune_result = 0;
-u8 is_validate_window_per_if = 0;
-u8 is_validate_window_per_pup = 0;
-u8 sweep_cnt = 1;
-u32 is_bist_reset_bit = 1;
+
+#if 0
+static u8 is_validate_window_per_if = 0;
+static u8 is_validate_window_per_pup = 0;
+static u8 sweep_cnt = 1;
+#endif
+
 static struct hws_xsb_info xsb_info[HWS_MAX_DEVICE_NUM];
 
 /*
@@ -291,6 +294,7 @@ int print_device_info(u8 dev_num)
 	return MV_OK;
 }
 
+#if 0
 void hws_ddr3_tip_sweep_test(int enable)
 {
 	if (enable) {
@@ -303,6 +307,7 @@ void hws_ddr3_tip_sweep_test(int enable)
 	}
 }
 #endif
+#endif
 
 char *ddr3_tip_convert_tune_result(enum hws_result tune_result)
 {
@@ -326,6 +331,7 @@ int ddr3_tip_print_log(u32 dev_num, u32 mem_addr)
 	u32 if_id = 0;
 	struct hws_topology_map *tm = ddr3_get_topology_map();
 
+#if 0
 #ifndef EXCLUDE_SWITCH_DEBUG
 	if ((is_validate_window_per_if != 0) ||
 	    (is_validate_window_per_pup != 0)) {
@@ -347,6 +353,16 @@ int ddr3_tip_print_log(u32 dev_num, u32 mem_addr)
 		ddr3_tip_reg_dump(dev_num);
 	}
 #endif
+#endif
+
+	/* return early if we won't print anything anyway */
+	if (
+#if defined(SILENT_LIB)
+	    1 ||
+#endif
+	    debug_training < DEBUG_LEVEL_INFO) {
+		return MV_OK;
+	}
 
 	for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1; if_id++) {
 		VALIDATE_ACTIVE(tm->if_act_mask, if_id);
@@ -756,7 +772,9 @@ u32 xsb_test_table[][8] = {
 	 0xffffffff, 0xffffffff}
 };
 
+#if 0
 static int ddr3_tip_access_atr(u32 dev_num, u32 flag_id, u32 value, u32 **ptr);
+#endif
 
 int ddr3_tip_print_adll(void)
 {
@@ -788,6 +806,7 @@ int ddr3_tip_print_adll(void)
 	return MV_OK;
 }
 
+#if 0
 /*
  * Set attribute value
  */
@@ -1155,6 +1174,7 @@ static int ddr3_tip_access_atr(u32 dev_num, u32 flag_id, u32 value, u32 **ptr)
 
 	return MV_OK;
 }
+#endif
 
 #ifndef EXCLUDE_SWITCH_DEBUG
 /*
diff --git a/drivers/ddr/marvell/a38x/old/ddr3_init.c b/drivers/ddr/marvell/a38x/old/ddr3_init.c
index 9818c3d494c..b3c04eb3abc 100644
--- a/drivers/ddr/marvell/a38x/old/ddr3_init.c
+++ b/drivers/ddr/marvell/a38x/old/ddr3_init.c
@@ -385,7 +385,8 @@ int ddr3_init(void)
 		return status;
 
 	/* Set log level for training lib */
-	ddr3_hws_set_log_level(DEBUG_BLOCK_ALL, DEBUG_LEVEL_ERROR);
+	if (!IS_ENABLED(CONFIG_DDR_IMMUTABLE_DEBUG_SETTINGS))
+		ddr3_hws_set_log_level(DEBUG_BLOCK_ALL, DEBUG_LEVEL_ERROR);
 
 	/* Start New Training IP */
 	status = ddr3_hws_hw_training();
diff --git a/drivers/ddr/marvell/a38x/old/ddr3_init.h b/drivers/ddr/marvell/a38x/old/ddr3_init.h
index ad95cc9ef8b..5090cf97a78 100644
--- a/drivers/ddr/marvell/a38x/old/ddr3_init.h
+++ b/drivers/ddr/marvell/a38x/old/ddr3_init.h
@@ -152,17 +152,38 @@ enum log_level  {
 };
 
 /* Globals */
-extern u8 debug_training;
+#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_a38x = DEBUG_LEVEL_ERROR;
+static const u8 debug_pbs = 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_a38x;
+extern u8 debug_pbs;
+#endif /* !CONFIG_DDR_IMMUTABLE_DEBUG_SETTINGS */
+
 extern u8 generic_init_controller;
 extern u32 freq_val[];
 extern u32 is_pll_old;
 extern struct cl_val_per_freq cas_latency_table[];
 extern struct pattern_info pattern_table[];
 extern struct cl_val_per_freq cas_write_latency_table[];
-extern u8 debug_training;
-extern u8 debug_centralization, debug_training_ip, debug_training_bist,
-	debug_pbs, debug_training_static, debug_leveling;
 extern u32 pipe_multicast_mask;
 extern struct hws_tip_config_func_db config_func_info[];
 extern u8 cs_mask_reg[];
@@ -186,8 +207,6 @@ extern u32 g_dic;
 extern u32 g_odt_config;
 extern u32 g_rtt_nom;
 
-extern u8 debug_training_access;
-extern u8 debug_training_a38x;
 extern u32 first_active_if;
 extern enum hws_ddr_freq init_freq;
 extern u32 delay_enable, ck_delay, ck_delay_16, ca_delay;
@@ -227,7 +246,6 @@ extern u32 znri_data_phy_val;
 extern u32 zpri_data_phy_val;
 extern u32 znri_ctrl_phy_val;
 extern u32 zpri_ctrl_phy_val;
-extern u8 debug_training_access;
 extern u32 finger_test, p_finger_start, p_finger_end, n_finger_start,
 	n_finger_end, p_finger_step, n_finger_step;
 extern u32 mode2_t;
@@ -243,8 +261,6 @@ extern u32 freq_mask[HWS_MAX_DEVICE_NUM][DDR_FREQ_LIMIT];
 extern u32 start_pattern, end_pattern;
 
 extern u32 maxt_poll_tries;
-extern u32 is_bist_reset_bit;
-extern u8 debug_training_bist;
 
 extern u8 vref_window_size[MAX_INTERFACE_NUM][MAX_BUS_NUM];
 extern u32 debug_mode;
@@ -252,20 +268,16 @@ extern u32 effective_cs;
 extern int ddr3_tip_centr_skip_min_win_check;
 extern u32 *dq_map_table;
 extern enum auto_tune_stage training_stage;
-extern u8 debug_centralization;
 
 extern u32 delay_enable;
 extern u32 start_pattern, end_pattern;
 extern u32 freq_val[DDR_FREQ_LIMIT];
-extern u8 debug_training_hw_alg;
 extern enum auto_tune_stage training_stage;
 
-extern u8 debug_training_ip;
 extern enum hws_result training_result[MAX_STAGE_LIMIT][MAX_INTERFACE_NUM];
 extern enum auto_tune_stage training_stage;
 extern u32 effective_cs;
 
-extern u8 debug_leveling;
 extern enum hws_result training_result[MAX_STAGE_LIMIT][MAX_INTERFACE_NUM];
 extern enum auto_tune_stage training_stage;
 extern u32 rl_version;
@@ -276,7 +288,6 @@ extern u32 odt_config;
 extern u32 effective_cs;
 extern u32 phy_reg1_val;
 
-extern u8 debug_pbs;
 extern u32 effective_cs;
 extern u16 mask_results_dq_reg_map[];
 extern enum hws_ddr_freq medium_freq;
@@ -296,7 +307,6 @@ extern u32 init_freq;
 #endif
 /* list of allowed frequency listed in order of enum hws_ddr_freq */
 extern u32 freq_val[];
-extern u8 debug_training_static;
 extern u32 first_active_if;
 
 /* Prototypes */