mips: jz47xx: Add JZ4780 SoC support
Add initial support for the Ingenic JZ47xx MIPS SoC.
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Marek Vasut <marex@denx.de>
diff --git a/arch/mips/mach-jz47xx/jz4780/jz4780.c b/arch/mips/mach-jz47xx/jz4780/jz4780.c
new file mode 100644
index 0000000..dbd328c
--- /dev/null
+++ b/arch/mips/mach-jz47xx/jz4780/jz4780.c
@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * JZ4780 common routines
+ *
+ * Copyright (c) 2013 Imagination Technologies
+ * Author: Paul Burton <paul.burton@imgtec.com>
+ */
+
+#include <config.h>
+#include <common.h>
+#include <asm/io.h>
+#include <asm/sections.h>
+#include <mach/jz4780.h>
+#include <mach/jz4780_dram.h>
+#include <mmc.h>
+#include <spl.h>
+
+#ifdef CONFIG_SPL_BUILD
+/* Pointer to the global data structure for SPL */
+DECLARE_GLOBAL_DATA_PTR;
+gd_t gdata __attribute__ ((section(".bss")));
+
+void board_init_f(ulong dummy)
+{
+ typedef void __noreturn (*image_entry_noargs_t)(void);
+ struct mmc *mmc;
+ unsigned long count;
+ struct image_header *header;
+ int ret;
+
+ /* Set global data pointer */
+ gd = &gdata;
+
+ timer_init();
+ pll_init();
+ sdram_init();
+ enable_caches();
+
+ /* Clear the BSS */
+ memset(__bss_start, 0, (char *)&__bss_end - __bss_start);
+
+ gd->flags |= GD_FLG_SPL_INIT;
+
+ ret = mmc_initialize(NULL);
+ if (ret)
+ hang();
+
+ mmc = find_mmc_device(BOOT_DEVICE_MMC1);
+ if (ret)
+ hang();
+
+ ret = mmc_init(mmc);
+ if (ret)
+ hang();
+
+ header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
+ sizeof(struct image_header));
+
+ count = blk_dread(mmc_get_blk_desc(mmc),
+ CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR,
+ 0x800, header);
+ if (count == 0)
+ hang();
+
+ image_entry_noargs_t image_entry =
+ (image_entry_noargs_t)CONFIG_SYS_TEXT_BASE;
+
+ image_entry();
+
+ hang();
+}
+#endif /* CONFIG_SPL_BUILD */
+
+ulong board_get_usable_ram_top(ulong total_size)
+{
+ return CONFIG_SYS_SDRAM_BASE + (256 * 1024 * 1024);
+}
+
+int print_cpuinfo(void)
+{
+ printf("CPU: Ingenic JZ4780\n");
+ return 0;
+}