ARM: uniphier: remove sLD3 SoC support

This SoC is too old.  It is difficult to maintain any longer.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/clk/Makefile b/arch/arm/mach-uniphier/clk/Makefile
index 1680ddd..76633bc 100644
--- a/arch/arm/mach-uniphier/clk/Makefile
+++ b/arch/arm/mach-uniphier/clk/Makefile
@@ -4,17 +4,15 @@
 
 ifdef CONFIG_SPL_BUILD
 
-obj-$(CONFIG_ARCH_UNIPHIER_SLD3)	+= clk-early-sld3.o clk-dram-sld3.o dpll-sld3.o
-obj-$(CONFIG_ARCH_UNIPHIER_LD4)		+= clk-early-sld3.o clk-dram-sld3.o dpll-ld4.o
-obj-$(CONFIG_ARCH_UNIPHIER_PRO4)	+= clk-early-sld3.o clk-dram-sld3.o dpll-pro4.o
-obj-$(CONFIG_ARCH_UNIPHIER_SLD8)	+= clk-early-sld3.o clk-dram-sld3.o dpll-sld8.o
-obj-$(CONFIG_ARCH_UNIPHIER_PRO5)	+= clk-early-sld3.o clk-dram-pro5.o dpll-pro5.o
-obj-$(CONFIG_ARCH_UNIPHIER_PXS2)	+= clk-early-sld3.o clk-dram-pxs2.o dpll-pxs2.o
-obj-$(CONFIG_ARCH_UNIPHIER_LD6B)	+= clk-early-sld3.o clk-dram-pxs2.o dpll-pxs2.o
+obj-$(CONFIG_ARCH_UNIPHIER_LD4)		+= clk-early-ld4.o clk-dram-ld4.o dpll-ld4.o
+obj-$(CONFIG_ARCH_UNIPHIER_PRO4)	+= clk-early-ld4.o clk-dram-ld4.o dpll-pro4.o
+obj-$(CONFIG_ARCH_UNIPHIER_SLD8)	+= clk-early-ld4.o clk-dram-ld4.o dpll-sld8.o
+obj-$(CONFIG_ARCH_UNIPHIER_PRO5)	+= clk-early-ld4.o clk-dram-pro5.o dpll-pro5.o
+obj-$(CONFIG_ARCH_UNIPHIER_PXS2)	+= clk-early-ld4.o clk-dram-pxs2.o dpll-pxs2.o
+obj-$(CONFIG_ARCH_UNIPHIER_LD6B)	+= clk-early-ld4.o clk-dram-pxs2.o dpll-pxs2.o
 
 else
 
-obj-$(CONFIG_ARCH_UNIPHIER_SLD3)	+= clk-ld4.o pll-sld3.o dpll-tail.o
 obj-$(CONFIG_ARCH_UNIPHIER_LD4)		+= clk-ld4.o pll-ld4.o dpll-tail.o
 obj-$(CONFIG_ARCH_UNIPHIER_PRO4)	+= clk-pro4.o pll-pro4.o dpll-tail.o
 obj-$(CONFIG_ARCH_UNIPHIER_SLD8)	+= clk-ld4.o pll-ld4.o dpll-tail.o
diff --git a/arch/arm/mach-uniphier/clk/clk-dram-sld3.c b/arch/arm/mach-uniphier/clk/clk-dram-ld4.c
similarity index 93%
rename from arch/arm/mach-uniphier/clk/clk-dram-sld3.c
rename to arch/arm/mach-uniphier/clk/clk-dram-ld4.c
index 3430303..407daf0 100644
--- a/arch/arm/mach-uniphier/clk/clk-dram-sld3.c
+++ b/arch/arm/mach-uniphier/clk/clk-dram-ld4.c
@@ -12,7 +12,7 @@
 #include "../init.h"
 #include "../sc-regs.h"
 
-void uniphier_sld3_dram_clk_init(void)
+void uniphier_ld4_dram_clk_init(void)
 {
 	u32 tmp;
 
diff --git a/arch/arm/mach-uniphier/clk/clk-early-sld3.c b/arch/arm/mach-uniphier/clk/clk-early-ld4.c
similarity index 93%
rename from arch/arm/mach-uniphier/clk/clk-early-sld3.c
rename to arch/arm/mach-uniphier/clk/clk-early-ld4.c
index 3235da2..07b916d 100644
--- a/arch/arm/mach-uniphier/clk/clk-early-sld3.c
+++ b/arch/arm/mach-uniphier/clk/clk-early-ld4.c
@@ -12,7 +12,7 @@
 #include "../init.h"
 #include "../sc-regs.h"
 
-void uniphier_sld3_early_clk_init(void)
+void uniphier_ld4_early_clk_init(void)
 {
 	u32 tmp;
 
diff --git a/arch/arm/mach-uniphier/clk/dpll-sld3.c b/arch/arm/mach-uniphier/clk/dpll-sld3.c
deleted file mode 100644
index 0eb310c..0000000
--- a/arch/arm/mach-uniphier/clk/dpll-sld3.c
+++ /dev/null
@@ -1,13 +0,0 @@
-/*
- * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include "../init.h"
-
-int uniphier_sld3_dpll_init(const struct uniphier_board_data *bd)
-{
-	/* add pll init code here */
-	return 0;
-}
diff --git a/arch/arm/mach-uniphier/clk/pll-sld3.c b/arch/arm/mach-uniphier/clk/pll-sld3.c
deleted file mode 100644
index 37a7c12..0000000
--- a/arch/arm/mach-uniphier/clk/pll-sld3.c
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * Copyright (C) 2016 Socionext Inc.
- *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include "../init.h"
-#include "pll.h"
-
-void uniphier_sld3_pll_init(void)
-{
-	uniphier_ld4_dpll_ssc_en();
-}