1 files changed, 0 insertions, 167 deletions
diff --git a/arch/arm/cpu/armv7/at91/clock.c b/arch/arm/cpu/armv7/at91/clock.c
deleted file mode 100644
index 2cdddb2504..0000000000
--- a/arch/arm/cpu/armv7/at91/clock.c
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
- * [origin: Linux kernel linux/arch/arm/mach-at91/clock.c]
- *
- * Copyright (C) 2005 David Brownell
- * Copyright (C) 2005 Ivan Kokshaysky
- * Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
- * Copyright (C) 2013 Bo Shen <voice.shen@atmel.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <asm/arch/hardware.h>
-#include <asm/arch/at91_pmc.h>
-#include <asm/arch/clk.h>
-
-#if !defined(CONFIG_AT91FAMILY)
-# error You need to define CONFIG_AT91FAMILY in your board config!
-#endif
-
-DECLARE_GLOBAL_DATA_PTR;
-
-static unsigned long at91_css_to_rate(unsigned long css)
-{
-	switch (css) {
-	case AT91_PMC_MCKR_CSS_SLOW:
-		return CONFIG_SYS_AT91_SLOW_CLOCK;
-	case AT91_PMC_MCKR_CSS_MAIN:
-		return gd->arch.main_clk_rate_hz;
-	case AT91_PMC_MCKR_CSS_PLLA:
-		return gd->arch.plla_rate_hz;
-	}
-
-	return 0;
-}
-
-static u32 at91_pll_rate(u32 freq, u32 reg)
-{
-	unsigned mul, div;
-
-	div = reg & 0xff;
-	mul = (reg >> 18) & 0x7f;
-	if (div && mul) {
-		freq /= div;
-		freq *= mul + 1;
-	} else {
-		freq = 0;
-	}
-
-	return freq;
-}
-
-int at91_clock_init(unsigned long main_clock)
-{
-	unsigned freq, mckr;
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
-#ifndef CONFIG_SYS_AT91_MAIN_CLOCK
-	unsigned tmp;
-	/*
-	 * When the bootloader initialized the main oscillator correctly,
-	 * there's no problem using the cycle counter.  But if it didn't,
-	 * or when using oscillator bypass mode, we must be told the speed
-	 * of the main clock.
-	 */
-	if (!main_clock) {
-		do {
-			tmp = readl(&pmc->mcfr);
-		} while (!(tmp & AT91_PMC_MCFR_MAINRDY));
-		tmp &= AT91_PMC_MCFR_MAINF_MASK;
-		main_clock = tmp * (CONFIG_SYS_AT91_SLOW_CLOCK / 16);
-	}
-#endif
-	gd->arch.main_clk_rate_hz = main_clock;
-
-	/* report if PLLA is more than mildly overclocked */
-	gd->arch.plla_rate_hz = at91_pll_rate(main_clock, readl(&pmc->pllar));
-
-	/*
-	 * MCK and CPU derive from one of those primary clocks.
-	 * For now, assume this parentage won't change.
-	 */
-	mckr = readl(&pmc->mckr);
-
-	/* plla divisor by 2 */
-	if (mckr & (1 << 12))
-		gd->arch.plla_rate_hz >>= 1;
-
-	gd->arch.mck_rate_hz = at91_css_to_rate(mckr & AT91_PMC_MCKR_CSS_MASK);
-	freq = gd->arch.mck_rate_hz;
-
-	/* prescale */
-	freq >>= mckr & AT91_PMC_MCKR_PRES_MASK;
-
-	switch (mckr & AT91_PMC_MCKR_MDIV_MASK) {
-	case AT91_PMC_MCKR_MDIV_2:
-		gd->arch.mck_rate_hz = freq / 2;
-		break;
-	case AT91_PMC_MCKR_MDIV_3:
-		gd->arch.mck_rate_hz = freq / 3;
-		break;
-	case AT91_PMC_MCKR_MDIV_4:
-		gd->arch.mck_rate_hz = freq / 4;
-		break;
-	default:
-		break;
-	}
-
-	gd->arch.cpu_clk_rate_hz = freq;
-
-	return 0;
-}
-
-void at91_plla_init(u32 pllar)
-{
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
-
-	writel(pllar, &pmc->pllar);
-	while (!(readl(&pmc->sr) & (AT91_PMC_LOCKA | AT91_PMC_MCKRDY)))
-		;
-}
-
-void at91_mck_init(u32 mckr)
-{
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
-	u32 tmp;
-
-	tmp = readl(&pmc->mckr);
-	tmp &= ~(AT91_PMC_MCKR_CSS_MASK  |
-		 AT91_PMC_MCKR_PRES_MASK |
-		 AT91_PMC_MCKR_MDIV_MASK |
-		 AT91_PMC_MCKR_PLLADIV_2);
-	tmp |= mckr & (AT91_PMC_MCKR_CSS_MASK  |
-		       AT91_PMC_MCKR_PRES_MASK |
-		       AT91_PMC_MCKR_MDIV_MASK |
-		       AT91_PMC_MCKR_PLLADIV_2);
-	writel(tmp, &pmc->mckr);
-
-	while (!(readl(&pmc->sr) & AT91_PMC_MCKRDY))
-		;
-}
-
-void at91_periph_clk_enable(int id)
-{
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
-	u32 regval;
-
-	if (id > AT91_PMC_PCR_PID_MASK)
-		return;
-
-	regval = AT91_PMC_PCR_EN | AT91_PMC_PCR_CMD_WRITE | id;
-
-	writel(regval, &pmc->pcr);
-}
-
-void at91_periph_clk_disable(int id)
-{
-	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
-	u32 regval;
-
-	if (id > AT91_PMC_PCR_PID_MASK)
-		return;
-
-	regval = AT91_PMC_PCR_CMD_WRITE | id;
-
-	writel(regval, &pmc->pcr);
-}