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-rw-r--r--cpu/mcf5227x/speed.c140
1 files changed, 0 insertions, 140 deletions
diff --git a/cpu/mcf5227x/speed.c b/cpu/mcf5227x/speed.c
deleted file mode 100644
index 7e385d3..0000000
--- a/cpu/mcf5227x/speed.c
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- *
- * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
- * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <asm/processor.h>
-
-#include <asm/immap.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/*
- * Low Power Divider specifications
- */
-#define CLOCK_LPD_MIN (1 << 0) /* Divider (decoded) */
-#define CLOCK_LPD_MAX (1 << 15) /* Divider (decoded) */
-
-#define CLOCK_PLL_FVCO_MAX 540000000
-#define CLOCK_PLL_FVCO_MIN 300000000
-
-#define CLOCK_PLL_FSYS_MAX 266666666
-#define CLOCK_PLL_FSYS_MIN 100000000
-#define MHZ 1000000
-
-void clock_enter_limp(int lpdiv)
-{
- volatile ccm_t *ccm = (volatile ccm_t *)MMAP_CCM;
- int i, j;
-
- /* Check bounds of divider */
- if (lpdiv < CLOCK_LPD_MIN)
- lpdiv = CLOCK_LPD_MIN;
- if (lpdiv > CLOCK_LPD_MAX)
- lpdiv = CLOCK_LPD_MAX;
-
- /* Round divider down to nearest power of two */
- for (i = 0, j = lpdiv; j != 1; j >>= 1, i++) ;
-
- /* Apply the divider to the system clock */
- ccm->cdr = (ccm->cdr & 0xF0FF) | CCM_CDR_LPDIV(i);
-
- /* Enable Limp Mode */
- ccm->misccr |= CCM_MISCCR_LIMP;
-}
-
-/*
- * brief Exit Limp mode
- * warning The PLL should be set and locked prior to exiting Limp mode
- */
-void clock_exit_limp(void)
-{
- volatile ccm_t *ccm = (volatile ccm_t *)MMAP_CCM;
- volatile pll_t *pll = (volatile pll_t *)MMAP_PLL;
-
- /* Exit Limp mode */
- ccm->misccr &= ~CCM_MISCCR_LIMP;
-
- /* Wait for the PLL to lock */
- while (!(pll->psr & PLL_PSR_LOCK)) ;
-}
-
-/*
- * get_clocks() fills in gd->cpu_clock and gd->bus_clk
- */
-int get_clocks(void)
-{
-
- volatile ccm_t *ccm = (volatile ccm_t *)MMAP_CCM;
- volatile pll_t *pll = (volatile pll_t *)MMAP_PLL;
- int vco, temp, pcrvalue, pfdr;
- u8 bootmode;
-
- pcrvalue = pll->pcr & 0xFF0F0FFF;
- pfdr = pcrvalue >> 24;
-
- if (pfdr == 0x1E)
- bootmode = 0; /* Normal Mode */
-
-#ifdef CONFIG_CF_SBF
- bootmode = 3; /* Serial Mode */
-#endif
-
- if (bootmode == 0) {
- /* Normal mode */
- vco = ((pll->pcr & 0xFF000000) >> 24) * CONFIG_SYS_INPUT_CLKSRC;
- if ((vco < CLOCK_PLL_FVCO_MIN) || (vco > CLOCK_PLL_FVCO_MAX)) {
- /* Default value */
- pcrvalue = (pll->pcr & 0x00FFFFFF);
- pcrvalue |= 0x1E << 24;
- pll->pcr = pcrvalue;
- vco =
- ((pll->pcr & 0xFF000000) >> 24) *
- CONFIG_SYS_INPUT_CLKSRC;
- }
- gd->vco_clk = vco; /* Vco clock */
- } else if (bootmode == 3) {
- /* serial mode */
- vco = ((pll->pcr & 0xFF000000) >> 24) * CONFIG_SYS_INPUT_CLKSRC;
- gd->vco_clk = vco; /* Vco clock */
- }
-
- if ((ccm->ccr & CCM_MISCCR_LIMP) == CCM_MISCCR_LIMP) {
- /* Limp mode */
- } else {
- gd->inp_clk = CONFIG_SYS_INPUT_CLKSRC; /* Input clock */
-
- temp = (pll->pcr & PLL_PCR_OUTDIV1_MASK) + 1;
- gd->cpu_clk = vco / temp; /* cpu clock */
-
- temp = ((pll->pcr & PLL_PCR_OUTDIV2_MASK) >> 4) + 1;
- gd->flb_clk = vco / temp; /* flexbus clock */
- gd->bus_clk = gd->flb_clk;
- }
-
-#ifdef CONFIG_FSL_I2C
- gd->i2c1_clk = gd->bus_clk;
-#endif
-
- return (0);
-}