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Diffstat (limited to 'arch/avr32/cpu/at32ap700x/clk.c')
-rw-r--r--arch/avr32/cpu/at32ap700x/clk.c82
1 files changed, 0 insertions, 82 deletions
diff --git a/arch/avr32/cpu/at32ap700x/clk.c b/arch/avr32/cpu/at32ap700x/clk.c
deleted file mode 100644
index 0fc6088e3e..0000000000
--- a/arch/avr32/cpu/at32ap700x/clk.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * Copyright (C) 2005-2008 Atmel Corporation
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-#include <common.h>
-
-#include <asm/io.h>
-
-#include <asm/arch/clk.h>
-#include <asm/arch/hardware.h>
-#include <asm/arch/portmux.h>
-
-#include "sm.h"
-
-void clk_init(void)
-{
- uint32_t cksel;
-
- /* in case of soft resets, disable watchdog */
- sm_writel(WDT_CTRL, SM_BF(KEY, 0x55));
- sm_writel(WDT_CTRL, SM_BF(KEY, 0xaa));
-
-#ifdef CONFIG_PLL
- /* Initialize the PLL */
- sm_writel(PM_PLL0, (SM_BF(PLLCOUNT, CONFIG_SYS_PLL0_SUPPRESS_CYCLES)
- | SM_BF(PLLMUL, CONFIG_SYS_PLL0_MUL - 1)
- | SM_BF(PLLDIV, CONFIG_SYS_PLL0_DIV - 1)
- | SM_BF(PLLOPT, CONFIG_SYS_PLL0_OPT)
- | SM_BF(PLLOSC, 0)
- | SM_BIT(PLLEN)));
-
- /* Wait for lock */
- while (!(sm_readl(PM_ISR) & SM_BIT(LOCK0))) ;
-#endif
-
- /* Set up clocks for the CPU and all peripheral buses */
- cksel = 0;
- if (CONFIG_SYS_CLKDIV_CPU)
- cksel |= SM_BIT(CPUDIV) | SM_BF(CPUSEL, CONFIG_SYS_CLKDIV_CPU - 1);
- if (CONFIG_SYS_CLKDIV_HSB)
- cksel |= SM_BIT(HSBDIV) | SM_BF(HSBSEL, CONFIG_SYS_CLKDIV_HSB - 1);
- if (CONFIG_SYS_CLKDIV_PBA)
- cksel |= SM_BIT(PBADIV) | SM_BF(PBASEL, CONFIG_SYS_CLKDIV_PBA - 1);
- if (CONFIG_SYS_CLKDIV_PBB)
- cksel |= SM_BIT(PBBDIV) | SM_BF(PBBSEL, CONFIG_SYS_CLKDIV_PBB - 1);
- sm_writel(PM_CKSEL, cksel);
-
-#ifdef CONFIG_PLL
- /* Use PLL0 as main clock */
- sm_writel(PM_MCCTRL, SM_BIT(PLLSEL));
-
-#ifdef CONFIG_LCD
- /* Set up pixel clock for the LCDC */
- sm_writel(PM_GCCTRL(7), SM_BIT(PLLSEL) | SM_BIT(CEN));
-#endif
-#endif
-}
-
-unsigned long __gclk_set_rate(unsigned int id, enum gclk_parent parent,
- unsigned long rate, unsigned long parent_rate)
-{
- unsigned long divider;
-
- if (rate == 0 || parent_rate == 0) {
- sm_writel(PM_GCCTRL(id), 0);
- return 0;
- }
-
- divider = (parent_rate + rate / 2) / rate;
- if (divider <= 1) {
- sm_writel(PM_GCCTRL(id), parent | SM_BIT(CEN));
- rate = parent_rate;
- } else {
- divider = min(255UL, divider / 2 - 1);
- sm_writel(PM_GCCTRL(id), parent | SM_BIT(CEN) | SM_BIT(DIVEN)
- | SM_BF(DIV, divider));
- rate = parent_rate / (2 * (divider + 1));
- }
-
- return rate;
-}