rockchip: rk322x: add basic soc support
Enable soc support for SPL and U-boot skeleton.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
diff --git a/arch/arm/mach-rockchip/rk322x-board-spl.c b/arch/arm/mach-rockchip/rk322x-board-spl.c
new file mode 100644
index 0000000..15216c7
--- /dev/null
+++ b/arch/arm/mach-rockchip/rk322x-board-spl.c
@@ -0,0 +1,77 @@
+/*
+ * (C) Copyright 2017 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <debug_uart.h>
+#include <dm.h>
+#include <ram.h>
+#include <spl.h>
+#include <asm/io.h>
+#include <asm/arch/bootrom.h>
+#include <asm/arch/cru_rk322x.h>
+#include <asm/arch/grf_rk322x.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/timer.h>
+#include <asm/arch/uart.h>
+
+u32 spl_boot_device(void)
+{
+ return BOOT_DEVICE_MMC1;
+}
+DECLARE_GLOBAL_DATA_PTR;
+
+#define GRF_BASE 0x11000000
+#define SGRF_BASE 0x10140000
+
+#define DEBUG_UART_BASE 0x11030000
+
+void board_debug_uart_init(void)
+{
+static struct rk322x_grf * const grf = (void *)GRF_BASE;
+ /* Enable early UART2 channel 1 on the RK322x */
+ rk_clrsetreg(&grf->gpio1b_iomux,
+ GPIO1B1_MASK | GPIO1B2_MASK,
+ GPIO1B2_UART21_SIN << GPIO1B2_SHIFT |
+ GPIO1B1_UART21_SOUT << GPIO1B1_SHIFT);
+ /* Set channel C as UART2 input */
+ rk_clrsetreg(&grf->con_iomux,
+ CON_IOMUX_UART2SEL_MASK,
+ CON_IOMUX_UART2SEL_21 << CON_IOMUX_UART2SEL_SHIFT);
+}
+void board_init_f(ulong dummy)
+{
+ struct udevice *dev;
+ int ret;
+
+ /*
+ * Debug UART can be used from here if required:
+ *
+ * debug_uart_init();
+ * printch('a');
+ * printhex8(0x1234);
+ * printascii("string");
+ */
+ debug_uart_init();
+ printascii("SPL Init");
+
+ ret = spl_early_init();
+ if (ret) {
+ debug("spl_early_init() failed: %d\n", ret);
+ hang();
+ }
+
+ rockchip_timer_init();
+ printf("timer init done\n");
+ ret = uclass_get_device(UCLASS_RAM, 0, &dev);
+ if (ret) {
+ printf("DRAM init failed: %d\n", ret);
+ return;
+ }
+
+#if defined(CONFIG_ROCKCHIP_SPL_BACK_TO_BROM) && !defined(CONFIG_SPL_BOARD_INIT)
+ back_to_bootrom();
+#endif
+}