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>
diff --git a/arch/arm/mach-uniphier/init/init-ph1-ld4.c b/arch/arm/mach-uniphier/init/init-ph1-ld4.c
new file mode 100644
index 0000000..8d0ef03
--- /dev/null
+++ b/arch/arm/mach-uniphier/init/init-ph1-ld4.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2013-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <spl.h>
+#include <linux/compiler.h>
+#include <mach/init.h>
+#include <mach/micro-support-card.h>
+
+int ph1_ld4_init(const struct uniphier_board_data *bd)
+{
+ ph1_ld4_bcu_init(bd);
+
+ ph1_ld4_sbc_init(bd);
+
+ support_card_reset();
+
+ ph1_ld4_pll_init(bd);
+
+ support_card_init();
+
+ led_puts("L0");
+
+ memconf_init(bd);
+
+ led_puts("L1");
+
+ ph1_ld4_early_clk_init(bd);
+
+ led_puts("L2");
+
+ led_puts("L3");
+
+#ifdef CONFIG_SPL_SERIAL_SUPPORT
+ preloader_console_init();
+#endif
+
+ led_puts("L4");
+
+ {
+ int res;
+
+ res = ph1_ld4_umc_init(bd);
+ if (res < 0) {
+ while (1)
+ ;
+ }
+ }
+
+ led_puts("L5");
+
+ ph1_ld4_enable_dpll_ssc(bd);
+
+ led_puts("L6");
+
+ return 0;
+}