CONFIG_NR_DRAM_BANKS: Remove unreferenced code as its always defined

Since commit 86cf1c82850f ("configs: Migrate CONFIG_NR_DRAM_BANKS") &
commit 999a772d9f24 ("Kconfig: Migrate CONFIG_NR_DRAM_BANKS"),
CONFIG_NR_DRAM_BANKS is always defined with a value (4 is default).
It makes no sense to still carry code that is guarded with
"#ifndef CONFIG_NR_DRAM_BANKS" (and similar). This patch removes
all these unreferenced code paths.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

11 files changed, 19 insertions, 51 deletions

diff --git a/arch/x86/cpu/broadwell/cpu_from_spl.c b/arch/x86/cpu/broadwell/cpu_from_spl.c
index 6567d50653..4d4cdafa2b 100644
--- a/arch/x86/cpu/broadwell/cpu_from_spl.c
+++ b/arch/x86/cpu/broadwell/cpu_from_spl.c
@@ -53,14 +53,12 @@ void board_debug_uart_init(void)
 
 int dram_init_banksize(void)
 {
-#ifdef CONFIG_NR_DRAM_BANKS
 	struct spl_handoff *ho;
 
 	ho = bloblist_find(BLOBLISTT_SPL_HANDOFF, sizeof(*ho));
 	if (!ho)
 		return log_msg_ret("Missing SPL hand-off info", -ENOENT);
 	handoff_load_dram_banks(ho);
-#endif
 
 	return 0;
 }
diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c
index b4e7301d50..bcfd56a912 100644
--- a/board/xilinx/zynqmp/zynqmp.c
+++ b/board/xilinx/zynqmp/zynqmp.c
@@ -423,10 +423,8 @@ int dram_init(void)
 #else
 int dram_init_banksize(void)
 {
-#if defined(CONFIG_NR_DRAM_BANKS)
 	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
 	gd->bd->bi_dram[0].size = get_effective_memsize();
-#endif
 
 	mem_map_fill();
 
diff --git a/cmd/bdinfo.c b/cmd/bdinfo.c
index 9593b345a3..9e230f23cb 100644
--- a/cmd/bdinfo.c
+++ b/cmd/bdinfo.c
@@ -49,7 +49,6 @@ void bdinfo_print_mhz(const char *name, unsigned long hz)
 
 static void print_bi_dram(const struct bd_info *bd)
 {
-#ifdef CONFIG_NR_DRAM_BANKS
 	int i;
 
 	for (i = 0; i < CONFIG_NR_DRAM_BANKS; ++i) {
@@ -59,7 +58,6 @@ static void print_bi_dram(const struct bd_info *bd)
 			bdinfo_print_num("-> size",	bd->bi_dram[i].size);
 		}
 	}
-#endif
 }
 
 __weak void arch_print_bdinfo(void)
diff --git a/common/board_f.c b/common/board_f.c
index d3444c7edc..ed37e3acaa 100644
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -215,8 +215,6 @@ static int announce_dram_init(void)
 static int show_dram_config(void)
 {
 	unsigned long long size;
-
-#ifdef CONFIG_NR_DRAM_BANKS
 	int i;
 
 	debug("\nRAM Configuration:\n");
@@ -229,9 +227,6 @@ static int show_dram_config(void)
 #endif
 	}
 	debug("\nDRAM:  ");
-#else
-	size = gd->ram_size;
-#endif
 
 	print_size(size, "");
 	board_add_ram_info(0);
@@ -242,7 +237,7 @@ static int show_dram_config(void)
 
 __weak int dram_init_banksize(void)
 {
-#if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE)
+#if defined(CONFIG_SYS_SDRAM_BASE)
 	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
 	gd->bd->bi_dram[0].size = get_effective_memsize();
 #endif
diff --git a/common/image.c b/common/image.c
index 9d7d5c17d1..2ed46f7685 100644
--- a/common/image.c
+++ b/common/image.c
@@ -685,8 +685,7 @@ phys_size_t env_get_bootm_size(void)
 		return tmp;
 	}
 
-#if (defined(CONFIG_ARM) || defined(CONFIG_MICROBLAZE)) && \
-     defined(CONFIG_NR_DRAM_BANKS)
+#if defined(CONFIG_ARM) || defined(CONFIG_MICROBLAZE)
 	start = gd->bd->bi_dram[0].start;
 	size = gd->bd->bi_dram[0].size;
 #else
diff --git a/common/init/handoff.c b/common/init/handoff.c
index e00b43e6a7..62071bd017 100644
--- a/common/init/handoff.c
+++ b/common/init/handoff.c
@@ -12,18 +12,15 @@ DECLARE_GLOBAL_DATA_PTR;
 
 void handoff_save_dram(struct spl_handoff *ho)
 {
+	struct bd_info *bd = gd->bd;
+	int i;
+
 	ho->ram_size = gd->ram_size;
-#ifdef CONFIG_NR_DRAM_BANKS
-	{
-		struct bd_info *bd = gd->bd;
-		int i;
-
-		for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
-			ho->ram_bank[i].start = bd->bi_dram[i].start;
-			ho->ram_bank[i].size = bd->bi_dram[i].size;
-		}
+
+	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
+		ho->ram_bank[i].start = bd->bi_dram[i].start;
+		ho->ram_bank[i].size = bd->bi_dram[i].size;
 	}
-#endif
 }
 
 void handoff_load_dram_size(struct spl_handoff *ho)
@@ -33,15 +30,11 @@ void handoff_load_dram_size(struct spl_handoff *ho)
 
 void handoff_load_dram_banks(struct spl_handoff *ho)
 {
-#ifdef CONFIG_NR_DRAM_BANKS
-	{
-		struct bd_info *bd = gd->bd;
-		int i;
-
-		for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
-			bd->bi_dram[i].start = ho->ram_bank[i].start;
-			bd->bi_dram[i].size = ho->ram_bank[i].size;
-		}
+	struct bd_info *bd = gd->bd;
+	int i;
+
+	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
+		bd->bi_dram[i].start = ho->ram_bank[i].start;
+		bd->bi_dram[i].size = ho->ram_bank[i].size;
 	}
-#endif
 }
diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c
index d8a6647a1d..eb07d25301 100644
--- a/drivers/pci/pci-uclass.c
+++ b/drivers/pci/pci-uclass.c
@@ -911,8 +911,8 @@ static void decode_regions(struct pci_controller *hose, ofnode parent_node,
 			   ofnode node)
 {
 	int pci_addr_cells, addr_cells, size_cells;
-	struct bd_info *bd = gd->bd;
 	int cells_per_record;
+	struct bd_info *bd;
 	const u32 *prop;
 	int max_regions;
 	int len;
@@ -989,6 +989,7 @@ static void decode_regions(struct pci_controller *hose, ofnode parent_node,
 	}
 
 	/* Add a region for our local memory */
+	bd = gd->bd;
 	if (!bd)
 		return;
 
diff --git a/include/asm-generic/u-boot.h b/include/asm-generic/u-boot.h
index 62e61d41cc..99d3fe33ad 100644
--- a/include/asm-generic/u-boot.h
+++ b/include/asm-generic/u-boot.h
@@ -70,12 +70,10 @@ struct bd_info {
 #endif
 	ulong	        bi_arch_number;	/* unique id for this board */
 	ulong	        bi_boot_params;	/* where this board expects params */
-#ifdef CONFIG_NR_DRAM_BANKS
 	struct {			/* RAM configuration */
 		phys_addr_t start;
 		phys_size_t size;
 	} bi_dram[CONFIG_NR_DRAM_BANKS];
-#endif /* CONFIG_NR_DRAM_BANKS */
 };
 
 #endif /* __ASSEMBLY__ */
diff --git a/include/handoff.h b/include/handoff.h
index 75d19b1f6e..070a79c1b9 100644
--- a/include/handoff.h
+++ b/include/handoff.h
@@ -20,12 +20,10 @@
 struct spl_handoff {
 	struct arch_spl_handoff arch;
 	u64 ram_size;
-#ifdef CONFIG_NR_DRAM_BANKS
 	struct {
 		u64 start;
 		u64 size;
 	} ram_bank[CONFIG_NR_DRAM_BANKS];
-#endif
 };
 
 void handoff_save_dram(struct spl_handoff *ho);
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index d3b22ec323..1ef976ee26 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -1073,8 +1073,6 @@ int fdtdec_setup_mem_size_base(void)
 	return 0;
 }
 
-#if defined(CONFIG_NR_DRAM_BANKS)
-
 ofnode get_next_memory_node(ofnode mem)
 {
 	do {
@@ -1170,7 +1168,6 @@ int fdtdec_setup_mem_size_base_lowest(void)
 
 	return 0;
 }
-#endif
 
 #if CONFIG_IS_ENABLED(MULTI_DTB_FIT)
 # if CONFIG_IS_ENABLED(MULTI_DTB_FIT_GZIP) ||\
@@ -1633,7 +1630,6 @@ int fdtdec_resetup(int *rescan)
 }
 #endif
 
-#ifdef CONFIG_NR_DRAM_BANKS
 int fdtdec_decode_ram_size(const void *blob, const char *area, int board_id,
 			   phys_addr_t *basep, phys_size_t *sizep,
 			   struct bd_info *bd)
@@ -1739,6 +1735,5 @@ int fdtdec_decode_ram_size(const void *blob, const char *area, int board_id,
 
 	return 0;
 }
-#endif /* CONFIG_NR_DRAM_BANKS */
 
 #endif /* !USE_HOSTCC */
diff --git a/lib/lmb.c b/lib/lmb.c
index 75082f3559..d126f8dc04 100644
--- a/lib/lmb.c
+++ b/lib/lmb.c
@@ -117,22 +117,17 @@ static void lmb_reserve_common(struct lmb *lmb, void *fdt_blob)
 /* Initialize the struct, add memory and call arch/board reserve functions */
 void lmb_init_and_reserve(struct lmb *lmb, struct bd_info *bd, void *fdt_blob)
 {
-#ifdef CONFIG_NR_DRAM_BANKS
 	int i;
-#endif
 
 	lmb_init(lmb);
-#ifdef CONFIG_NR_DRAM_BANKS
+
 	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
 		if (bd->bi_dram[i].size) {
 			lmb_add(lmb, bd->bi_dram[i].start,
 				bd->bi_dram[i].size);
 		}
 	}
-#else
-	if (bd->bi_memsize)
-		lmb_add(lmb, bd->bi_memstart, bd->bi_memsize);
-#endif
+
 	lmb_reserve_common(lmb, fdt_blob);
 }