ARM: uniphier: allow to enable multiple SoCs

Before this commit, the Kconfig menu in mach-uniphier only allowed us
to choose one SoC to be compiled.  Each SoC has its own defconfig file
for the build-test coverage.  Consequently, some defconfig files are
duplicated with only the difference in CONFIG_DEFAULT_DEVICE_TREE and
CONFIG_{SOC_NAME}=y.

Now, most of board-specific parameters have been moved to device trees,
so it makes sense to include init code of multiple SoCs into a single
image as long as the SoCs have similar architecture.  In fact, some
SoCs of UniPhier family are very similar:
 - PH1-LD4 and PH1-sLD8
 - PH1-LD6b and ProXstream2 (will be added in the upcoming commit)

This commit will be helpful to merge some defconfig files for better
maintainability.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

1 files changed, 83 insertions, 0 deletions

diff --git a/arch/arm/mach-uniphier/include/mach/init.h b/arch/arm/mach-uniphier/include/mach/init.h
new file mode 100644
index 0000000000..228cbb1a19
--- /dev/null
+++ b/arch/arm/mach-uniphier/include/mach/init.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __MACH_INIT_H
+#define __MACH_INIT_H
+
+struct uniphier_board_data {
+	unsigned long dram_ch0_base;
+	unsigned long dram_ch0_size;
+	unsigned long dram_ch0_width;
+	unsigned long dram_ch1_base;
+	unsigned long dram_ch1_size;
+	unsigned long dram_ch1_width;
+	unsigned long dram_ch2_base;
+	unsigned long dram_ch2_size;
+	unsigned long dram_ch2_width;
+	unsigned int  dram_freq;
+};
+
+const struct uniphier_board_data *uniphier_get_board_param(const void *fdt);
+
+int ph1_sld3_init(const struct uniphier_board_data *bd);
+int ph1_ld4_init(const struct uniphier_board_data *bd);
+int ph1_pro4_init(const struct uniphier_board_data *bd);
+int ph1_sld8_init(const struct uniphier_board_data *bd);
+
+#if defined(CONFIG_MICRO_SUPPORT_CARD)
+int ph1_sld3_sbc_init(const struct uniphier_board_data *bd);
+int ph1_ld4_sbc_init(const struct uniphier_board_data *bd);
+int ph1_pro4_sbc_init(const struct uniphier_board_data *bd);
+#else
+static inline int ph1_sld3_sbc_init(const struct uniphier_board_data *bd)
+{
+	return 0;
+}
+
+static inline int ph1_ld4_sbc_init(const struct uniphier_board_data *bd)
+{
+	return 0;
+}
+
+static inline int ph1_pro4_sbc_init(const struct uniphier_board_data *bd)
+{
+	return 0;
+}
+#endif
+
+int ph1_sld3_bcu_init(const struct uniphier_board_data *bd);
+int ph1_ld4_bcu_init(const struct uniphier_board_data *bd);
+
+int memconf_init(const struct uniphier_board_data *bd);
+int ph1_sld3_memconf_init(const struct uniphier_board_data *bd);
+
+int ph1_sld3_pll_init(const struct uniphier_board_data *bd);
+int ph1_ld4_pll_init(const struct uniphier_board_data *bd);
+int ph1_pro4_pll_init(const struct uniphier_board_data *bd);
+int ph1_sld8_pll_init(const struct uniphier_board_data *bd);
+
+int ph1_sld3_enable_dpll_ssc(const struct uniphier_board_data *bd);
+int ph1_ld4_enable_dpll_ssc(const struct uniphier_board_data *bd);
+
+int ph1_ld4_early_clk_init(const struct uniphier_board_data *bd);
+
+int ph1_sld3_early_pin_init(const struct uniphier_board_data *bd);
+
+int ph1_ld4_umc_init(const struct uniphier_board_data *bd);
+int ph1_pro4_umc_init(const struct uniphier_board_data *bd);
+int ph1_sld8_umc_init(const struct uniphier_board_data *bd);
+
+void ph1_sld3_pin_init(void);
+void ph1_ld4_pin_init(void);
+void ph1_pro4_pin_init(void);
+void ph1_sld8_pin_init(void);
+
+void ph1_ld4_clk_init(void);
+void ph1_pro4_clk_init(void);
+
+#define pr_err(fmt, args...)	printf(fmt, ##args)
+
+#endif /* __MACH_INIT_H */