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

source/bootloader/u-boot-2020.01/board/ti/ks2_evm/board_k2e.c

@@ -0,0 +1,116 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * K2E EVM : Board initialization
+ *
+ * (C) Copyright 2014
+ *     Texas Instruments Incorporated, <www.ti.com>
+ */
+
+#include <common.h>
+#include <asm/arch/ddr3.h>
+#include <asm/arch/hardware.h>
+#include <asm/ti-common/keystone_net.h>
+
+unsigned int get_external_clk(u32 clk)
+{
+	unsigned int clk_freq;
+
+	switch (clk) {
+	case sys_clk:
+		clk_freq = 100000000;
+		break;
+	case alt_core_clk:
+		clk_freq = 100000000;
+		break;
+	case pa_clk:
+		clk_freq = 100000000;
+		break;
+	case ddr3a_clk:
+		clk_freq = 100000000;
+		break;
+	default:
+		clk_freq = 0;
+		break;
+	}
+
+	return clk_freq;
+}
+
+static struct pll_init_data core_pll_config[NUM_SPDS] = {
+	[SPD800]	= CORE_PLL_800,
+	[SPD850]	= CORE_PLL_850,
+	[SPD1000]	= CORE_PLL_1000,
+	[SPD1250]	= CORE_PLL_1250,
+	[SPD1350]	= CORE_PLL_1350,
+	[SPD1400]	= CORE_PLL_1400,
+	[SPD1500]	= CORE_PLL_1500,
+};
+
+/* DEV and ARM speed definitions as specified in DEVSPEED register */
+int speeds[DEVSPEED_NUMSPDS] = {
+	SPD850,
+	SPD1000,
+	SPD1250,
+	SPD1350,
+	SPD1400,
+	SPD1500,
+	SPD1400,
+	SPD1350,
+	SPD1250,
+	SPD1000,
+	SPD850,
+	SPD800,
+};
+
+s16 divn_val[16] = {
+	0, 0, 1, 4, 23, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+};
+
+static struct pll_init_data pa_pll_config =
+	PASS_PLL_1000;
+
+struct pll_init_data *get_pll_init_data(int pll)
+{
+	int speed;
+	struct pll_init_data *data;
+
+	switch (pll) {
+	case MAIN_PLL:
+		speed = get_max_dev_speed(speeds);
+		data = &core_pll_config[speed];
+		break;
+	case PASS_PLL:
+		data = &pa_pll_config;
+		break;
+	default:
+		data = NULL;
+	}
+
+	return data;
+}
+
+#if defined(CONFIG_MULTI_DTB_FIT)
+int board_fit_config_name_match(const char *name)
+{
+	if (!strcmp(name, "keystone-k2e-evm"))
+		return 0;
+
+	return -1;
+}
+#endif
+
+#if defined(CONFIG_BOARD_EARLY_INIT_F)
+int board_early_init_f(void)
+{
+	init_plls();
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_SPL_BUILD
+void spl_init_keystone_plls(void)
+{
+	init_plls();
+}
+#endif