GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/arch/arm/mach-rockchip/rk322x/rk322x.c

@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2019 Rockchip Electronics Co., Ltd
+ */
+#include <asm/io.h>
+#include <asm/arch-rockchip/bootrom.h>
+#include <asm/arch-rockchip/grf_rk322x.h>
+#include <asm/arch-rockchip/hardware.h>
+
+const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = {
+	[BROM_BOOTSOURCE_EMMC] = "/dwmmc@30020000",
+	[BROM_BOOTSOURCE_SD] = "/dwmmc@30000000",
+};
+
+#ifdef CONFIG_DEBUG_UART_BOARD_INIT
+void board_debug_uart_init(void)
+{
+#define GRF_BASE	0x11000000
+	static struct rk322x_grf * const grf = (void *)GRF_BASE;
+	enum {
+		GPIO1B2_SHIFT		= 4,
+		GPIO1B2_MASK		= 3 << GPIO1B2_SHIFT,
+		GPIO1B2_GPIO            = 0,
+		GPIO1B2_UART1_SIN,
+		GPIO1B2_UART21_SIN,
+
+		GPIO1B1_SHIFT		= 2,
+		GPIO1B1_MASK		= 3 << GPIO1B1_SHIFT,
+		GPIO1B1_GPIO            = 0,
+		GPIO1B1_UART1_SOUT,
+		GPIO1B1_UART21_SOUT,
+	};
+	enum {
+		CON_IOMUX_UART2SEL_SHIFT = 8,
+		CON_IOMUX_UART2SEL_MASK	= 1 << CON_IOMUX_UART2SEL_SHIFT,
+		CON_IOMUX_UART2SEL_2	= 0,
+		CON_IOMUX_UART2SEL_21,
+	};
+
+	/* 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);
+}
+#endif
+
+int arch_cpu_init(void)
+{
+#ifdef CONFIG_SPL_BUILD
+#define SGRF_BASE	0x10150000
+	static struct rk322x_sgrf * const sgrf = (void *)SGRF_BASE;
+
+	/* Disable the ddr secure region setting to make it non-secure */
+	rk_clrreg(&sgrf->soc_con[0], 0x4000);
+#else
+#define GRF_BASE	0x11000000
+	static struct rk322x_grf * const grf = (void *)GRF_BASE;
+	/*
+	 * The integrated macphy is enabled by default, disable it
+	 * for saving power consuming.
+	 */
+	rk_clrsetreg(&grf->macphy_con[0],
+		     MACPHY_CFG_ENABLE_MASK,
+		     0 << MACPHY_CFG_ENABLE_SHIFT);
+
+#endif
+	return 0;
+}