1 files changed, 125 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-aspeed/scu_ast2500.h b/arch/arm/include/asm/arch-aspeed/scu_ast2500.h
new file mode 100644
index 0000000..fc0c01a
--- /dev/null
+++ b/arch/arm/include/asm/arch-aspeed/scu_ast2500.h
@@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 2016 Google, Inc
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#ifndef _ASM_ARCH_SCU_AST2500_H
+#define _ASM_ARCH_SCU_AST2500_H
+
+#define SCU_UNLOCK_VALUE		0x1688a8a8
+
+#define SCU_HWSTRAP_VGAMEM_MASK		3
+#define SCU_HWSTRAP_VGAMEM_SHIFT	2
+#define SCU_HWSTRAP_DDR4		(1 << 24)
+#define SCU_HWSTRAP_CLKIN_25MHZ		(1 << 23)
+
+#define SCU_MPLL_DENUM_SHIFT		0
+#define SCU_MPLL_DENUM_MASK		0x1f
+#define SCU_MPLL_NUM_SHIFT		5
+#define SCU_MPLL_NUM_MASK		0xff
+#define SCU_MPLL_POST_SHIFT		13
+#define SCU_MPLL_POST_MASK		0x3f
+
+#define SCU_HPLL_DENUM_SHIFT		0
+#define SCU_HPLL_DENUM_MASK		0x1f
+#define SCU_HPLL_NUM_SHIFT		5
+#define SCU_HPLL_NUM_MASK		0xff
+#define SCU_HPLL_POST_SHIFT		13
+#define SCU_HPLL_POST_MASK		0x3f
+
+#define SCU_MISC2_UARTCLK_SHIFT		24
+
+#define SCU_MISC_UARTCLK_DIV13		(1 << 12)
+
+#ifndef __ASSEMBLY__
+
+struct ast2500_clk_priv {
+	struct ast2500_scu *scu;
+};
+
+struct ast2500_scu {
+	u32 protection_key;
+	u32 sysreset_ctrl1;
+	u32 clk_sel1;
+	u32 clk_stop_ctrl1;
+	u32 freq_counter_ctrl;
+	u32 freq_counter_cmp;
+	u32 intr_ctrl;
+	u32 d2_pll_param;
+	u32 m_pll_param;
+	u32 h_pll_param;
+	u32 d_pll_param;
+	u32 misc_ctrl1;
+	u32 pci_config[3];
+	u32 sysreset_status;
+	u32 vga_handshake[2];
+	u32 mac_clk_delay;
+	u32 misc_ctrl2;
+	u32 vga_scratch[8];
+	u32 hwstrap;
+	u32 rng_ctrl;
+	u32 rng_data;
+	u32 rev_id;
+	u32 pinmux_ctrl[6];
+	u32 reserved0;
+	u32 extrst_sel;
+	u32 pinmux_ctrl1[4];
+	u32 reserved1[2];
+	u32 mac_clk_delay_100M;
+	u32 mac_clk_delay_10M;
+	u32 wakeup_enable;
+	u32 wakeup_control;
+	u32 reserved2[3];
+	u32 sysreset_ctrl2;
+	u32 clk_sel2;
+	u32 clk_stop_ctrl2;
+	u32 freerun_counter;
+	u32 freerun_counter_ext;
+	u32 clk_duty_meas_ctrl;
+	u32 clk_duty_meas_res;
+	u32 reserved3[4];
+	/* The next registers are not key-protected */
+	struct ast2500_cpu2 {
+		u32 ctrl;
+		u32 base_addr[9];
+		u32 cache_ctrl;
+	} cpu2;
+	u32 reserved4;
+	u32 d_pll_ext_param[3];
+	u32 d2_pll_ext_param[3];
+	u32 mh_pll_ext_param;
+	u32 reserved5;
+	u32 chip_id[2];
+	u32 reserved6[2];
+	u32 uart_clk_ctrl;
+	u32 reserved7[7];
+	u32 pcie_config;
+	u32 mmio_decode;
+	u32 reloc_ctrl_decode[2];
+	u32 mailbox_addr;
+	u32 shared_sram_decode[2];
+	u32 bmc_rev_id;
+	u32 reserved8;
+	u32 bmc_device_id;
+	u32 reserved9[13];
+	u32 clk_duty_sel;
+};
+
+/**
+ * ast_get_clk() - get a pointer to Clock Driver
+ *
+ * @devp, OUT - pointer to Clock Driver
+ * @return zero on success, error code (< 0) otherwise.
+ */
+int ast_get_clk(struct udevice **devp);
+
+/**
+ * ast_get_scu() - get a pointer to SCU registers
+ *
+ * @return pointer to struct ast2500_scu on success, ERR_PTR otherwise
+ */
+void *ast_get_scu(void);
+
+#endif  /* __ASSEMBLY__ */
+
+#endif  /* _ASM_ARCH_SCU_AST2500_H */