drivers/clk/xilinx/xlnx_vcu.c

Source file repositories/reference/linux-study-clean/drivers/clk/xilinx/xlnx_vcu.c

File Facts

System
Linux kernel
Corpus path
drivers/clk/xilinx/xlnx_vcu.c
Extension
.c
Size
20172 bytes
Lines
772
Domain
Driver Families
Bucket
drivers/clk
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct xvcu_device {
	struct device *dev;
	struct clk *pll_ref;
	struct clk *aclk;
	struct gpio_desc *reset_gpio;
	struct regmap *logicore_reg_ba;
	void __iomem *vcu_slcr_ba;
	struct clk_hw *pll;
	struct clk_hw *pll_post;
	struct clk_hw_onecell_data *clk_data;
};

static const struct regmap_config vcu_settings_regmap_config = {
	.name = "regmap",
	.reg_bits = 32,
	.val_bits = 32,
	.reg_stride = 4,
	.max_register = 0xfff,
	.cache_type = REGCACHE_NONE,
};

/**
 * struct xvcu_pll_cfg - Helper data
 * @fbdiv: The integer portion of the feedback divider to the PLL
 * @cp: PLL charge pump control
 * @res: PLL loop filter resistor control
 * @lfhf: PLL loop filter high frequency capacitor control
 * @lock_dly: Lock circuit configuration settings for lock windowsize
 * @lock_cnt: Lock circuit counter setting
 */
struct xvcu_pll_cfg {
	u32 fbdiv;
	u32 cp;
	u32 res;
	u32 lfhf;
	u32 lock_dly;
	u32 lock_cnt;
};

static const struct xvcu_pll_cfg xvcu_pll_cfg[] = {
	{ 25, 3, 10, 3, 63, 1000 },
	{ 26, 3, 10, 3, 63, 1000 },
	{ 27, 4, 6, 3, 63, 1000 },
	{ 28, 4, 6, 3, 63, 1000 },
	{ 29, 4, 6, 3, 63, 1000 },
	{ 30, 4, 6, 3, 63, 1000 },
	{ 31, 6, 1, 3, 63, 1000 },
	{ 32, 6, 1, 3, 63, 1000 },
	{ 33, 4, 10, 3, 63, 1000 },
	{ 34, 5, 6, 3, 63, 1000 },
	{ 35, 5, 6, 3, 63, 1000 },
	{ 36, 5, 6, 3, 63, 1000 },
	{ 37, 5, 6, 3, 63, 1000 },
	{ 38, 5, 6, 3, 63, 975 },
	{ 39, 3, 12, 3, 63, 950 },
	{ 40, 3, 12, 3, 63, 925 },
	{ 41, 3, 12, 3, 63, 900 },
	{ 42, 3, 12, 3, 63, 875 },
	{ 43, 3, 12, 3, 63, 850 },
	{ 44, 3, 12, 3, 63, 850 },
	{ 45, 3, 12, 3, 63, 825 },
	{ 46, 3, 12, 3, 63, 800 },
	{ 47, 3, 12, 3, 63, 775 },
	{ 48, 3, 12, 3, 63, 775 },
	{ 49, 3, 12, 3, 63, 750 },
	{ 50, 3, 12, 3, 63, 750 },
	{ 51, 3, 2, 3, 63, 725 },
	{ 52, 3, 2, 3, 63, 700 },
	{ 53, 3, 2, 3, 63, 700 },
	{ 54, 3, 2, 3, 63, 675 },
	{ 55, 3, 2, 3, 63, 675 },
	{ 56, 3, 2, 3, 63, 650 },
	{ 57, 3, 2, 3, 63, 650 },
	{ 58, 3, 2, 3, 63, 625 },
	{ 59, 3, 2, 3, 63, 625 },
	{ 60, 3, 2, 3, 63, 625 },
	{ 61, 3, 2, 3, 63, 600 },
	{ 62, 3, 2, 3, 63, 600 },
	{ 63, 3, 2, 3, 63, 600 },
	{ 64, 3, 2, 3, 63, 600 },
	{ 65, 3, 2, 3, 63, 600 },
	{ 66, 3, 2, 3, 63, 600 },
	{ 67, 3, 2, 3, 63, 600 },
	{ 68, 3, 2, 3, 63, 600 },
	{ 69, 3, 2, 3, 63, 600 },
	{ 70, 3, 2, 3, 63, 600 },
	{ 71, 3, 2, 3, 63, 600 },
	{ 72, 3, 2, 3, 63, 600 },
	{ 73, 3, 2, 3, 63, 600 },
	{ 74, 3, 2, 3, 63, 600 },

Annotation

Implementation Notes