STRUCT AMD_SPI_FREQ(9)

💅 struct amd_spi_freq(9) — from the Kernel API Manual, bestie ✨

okay so this is a page straight out of the Kernel API Manual, and it's all about one lil struct that's lowkey the matchmaker between your device's speed and the magic values that go in the registers. let me walk you through it 🫶

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✨ NAME ✨

struct amd_spi_freq — no cap, its whole job is matching device speed with the values to write in the regs. that's it, that's the vibe 💅

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🌸 SYNOPSIS 🌸

here's the struct in all its glory, copy it exactly, don't freestyle:

struct amd_spi_freq {
    u32 speed_hz;
    u32 enable_val;
    u32 spd7_val;
 };

three fields, zero drama. iconic honestly 🎀

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🦋 Members 🦋

• speed_hz — the device frequency. literally just the speed, in hz, living its best life as a u32 ✨
• enable_val — the value that gets written to the "enable register". that's the whole assignment, and it ate 🔥
• spd7_val — okay so some frequencies require you to have a value written at the SPISPEED register. not all of them, just some — don't come for me, that's literally what it says 🙈

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👑 SEE ALSO 👑

• Kernel file ./drivers/spi/spi-amd.c — go read it, iykyk 💖

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so yeah, that's the whole page, short and sweet, main character energy only 🌈

lowkey reminder: when you're filling in these fields, remember spd7_val only matters for some frequencies — the manpage said it, not me 💀

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and that's a wrap, bestie! this gem comes to you from ./drivers/spi, dated October 2026 — catch you in the next one, mwah 💜🧚