1 files changed, 80 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/mach-owl/soc.c b/roms/u-boot/arch/arm/mach-owl/soc.c
new file mode 100644
index 000000000..4baef2eed
--- /dev/null
+++ b/roms/u-boot/arch/arm/mach-owl/soc.c
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Actions Semi Owl SoCs platform support.
+ *
+ * Copyright (C) 2018 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+ */
+
+#include <cpu_func.h>
+#include <init.h>
+#include <asm/cache.h>
+#include <asm/global_data.h>
+#include <linux/arm-smccc.h>
+#include <linux/psci.h>
+#include <common.h>
+#include <asm/io.h>
+#include <asm/mach-types.h>
+#include <asm/psci.h>
+
+#define DMM_INTERLEAVE_PER_CH_CFG	0xe0290028
+
+DECLARE_GLOBAL_DATA_PTR;
+
+unsigned int owl_get_ddrcap(void)
+{
+	unsigned int val, cap;
+
+	/* ddr capacity register initialized by ddr driver
+	 * in early bootloader
+	 */
+#if defined(CONFIG_MACH_S700)
+	val = (readl(DMM_INTERLEAVE_PER_CH_CFG) >> 8) & 0x7;
+	cap =  (val + 1) * 256;
+#elif defined(CONFIG_MACH_S900)
+	val = (readl(DMM_INTERLEAVE_PER_CH_CFG) >> 8) & 0xf;
+	cap =  64 * (1 << val);
+#endif
+
+	return cap;
+}
+
+/*
+ * dram_init - sets uboots idea of sdram size
+ */
+int dram_init(void)
+{
+	gd->ram_size = owl_get_ddrcap() * 1024 * 1024;
+	return 0;
+}
+
+/* This is called after dram_init() so use get_ram_size result */
+int dram_init_banksize(void)
+{
+	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+	gd->bd->bi_dram[0].size = gd->ram_size;
+
+	return 0;
+}
+
+static void show_psci_version(void)
+{
+	struct arm_smccc_res res;
+
+	arm_smccc_smc(ARM_PSCI_0_2_FN_PSCI_VERSION, 0, 0, 0, 0, 0, 0, 0, &res);
+
+	printf("PSCI:  v%ld.%ld\n",
+		PSCI_VERSION_MAJOR(res.a0),
+		PSCI_VERSION_MINOR(res.a0));
+}
+
+int board_init(void)
+{
+	show_psci_version();
+
+	return 0;
+}
+
+void reset_cpu(void)
+{
+	psci_system_reset();
+}