1 files changed, 102 insertions, 0 deletions
diff --git a/drivers/staging/sm750fb/ddk750_chip.h b/drivers/staging/sm750fb/ddk750_chip.h
new file mode 100644
index 0000000000..ee2e9d90f7
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_chip.h
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef DDK750_CHIP_H__
+#define DDK750_CHIP_H__
+#define DEFAULT_INPUT_CLOCK 14318181 /* Default reference clock */
+#ifndef SM750LE_REVISION_ID
+#define SM750LE_REVISION_ID ((unsigned char)0xfe)
+#endif
+
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/uaccess.h>
+
+extern void __iomem *mmio750;
+
+/* software control endianness */
+static inline u32 peek32(u32 addr)
+{
+	return readl(addr + mmio750);
+}
+
+static inline void poke32(u32 addr, u32 data)
+{
+	writel(data, addr + mmio750);
+}
+
+/* This is all the chips recognized by this library */
+enum logical_chip_type {
+	SM_UNKNOWN,
+	SM718,
+	SM750,
+	SM750LE,
+};
+
+enum clock_type {
+	MXCLK_PLL,
+	PRIMARY_PLL,
+	SECONDARY_PLL,
+	VGA0_PLL,
+	VGA1_PLL,
+};
+
+struct pll_value {
+	enum clock_type clock_type;
+	unsigned long input_freq; /* Input clock frequency to the PLL */
+
+	/* Use this when clockType = PANEL_PLL */
+	unsigned long M;
+	unsigned long N;
+	unsigned long OD;
+	unsigned long POD;
+};
+
+/* input struct to initChipParam() function */
+struct initchip_param {
+	/* Use power mode 0 or 1 */
+	unsigned short power_mode;
+
+	/*
+	 * Speed of main chip clock in MHz unit
+	 * 0 = keep the current clock setting
+	 * Others = the new main chip clock
+	 */
+	unsigned short chip_clock;
+
+	/*
+	 * Speed of memory clock in MHz unit
+	 * 0 = keep the current clock setting
+	 * Others = the new memory clock
+	 */
+	unsigned short mem_clock;
+
+	/*
+	 * Speed of master clock in MHz unit
+	 * 0 = keep the current clock setting
+	 * Others = the new master clock
+	 */
+	unsigned short master_clock;
+
+	/*
+	 * 0 = leave all engine state untouched.
+	 * 1 = make sure they are off: 2D, Overlay,
+	 * video alpha, alpha, hardware cursors
+	 */
+	unsigned short set_all_eng_off;
+
+	/*
+	 * 0 = Do not reset the memory controller
+	 * 1 = Reset the memory controller
+	 */
+	unsigned char reset_memory;
+
+	/* More initialization parameter can be added if needed */
+};
+
+enum logical_chip_type sm750_get_chip_type(void);
+void sm750_set_chip_type(unsigned short dev_id, u8 rev_id);
+unsigned int sm750_calc_pll_value(unsigned int request, struct  pll_value *pll);
+unsigned int sm750_format_pll_reg(struct pll_value *p_PLL);
+unsigned int ddk750_get_vm_size(void);
+int ddk750_init_hw(struct initchip_param *pinit_param);
+
+#endif