diff options
Diffstat (limited to 'cpu/arm1136/mx31/generic.c')
-rw-r--r-- | cpu/arm1136/mx31/generic.c | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/cpu/arm1136/mx31/generic.c b/cpu/arm1136/mx31/generic.c deleted file mode 100644 index 297d616d5e..0000000000 --- a/cpu/arm1136/mx31/generic.c +++ /dev/null @@ -1,99 +0,0 @@ -/* - * (C) Copyright 2007 - * Sascha Hauer, Pengutronix - * - * 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/arch/mx31-regs.h> - -static u32 mx31_decode_pll(u32 reg, u32 infreq) -{ - u32 mfi = (reg >> 10) & 0xf; - u32 mfn = reg & 0x3f; - u32 mfd = (reg >> 16) & 0x3f; - u32 pd = (reg >> 26) & 0xf; - - mfi = mfi <= 5 ? 5 : mfi; - mfd += 1; - pd += 1; - - return ((2 * (infreq >> 10) * (mfi * mfd + mfn)) / - (mfd * pd)) << 10; -} - -u32 mx31_get_mpl_dpdgck_clk(void) -{ - u32 infreq; - - if ((__REG(CCM_CCMR) & CCMR_PRCS_MASK) == CCMR_FPM) - infreq = CONFIG_MX31_CLK32 * 1024; - else - infreq = CONFIG_MX31_HCLK_FREQ; - - return mx31_decode_pll(__REG(CCM_MPCTL), infreq); } - -u32 mx31_get_mcu_main_clk(void) -{ - /* For now we assume mpl_dpdgck_clk == mcu_main_clk - * which should be correct for most boards - */ - return mx31_get_mpl_dpdgck_clk(); -} - -u32 mx31_get_ipg_clk(void) -{ - u32 freq = mx31_get_mcu_main_clk(); - u32 pdr0 = __REG(CCM_PDR0); - - freq /= ((pdr0 >> 3) & 0x7) + 1; - freq /= ((pdr0 >> 6) & 0x3) + 1; - - return freq; -} - -void mx31_dump_clocks(void) -{ - u32 cpufreq = mx31_get_mcu_main_clk(); - printf("mx31 cpu clock: %dMHz\n", cpufreq / 1000000); - printf("ipg clock : %dHz\n", mx31_get_ipg_clk()); -} - -void mx31_gpio_mux(unsigned long mode) -{ - unsigned long reg, shift, tmp; - - reg = IOMUXC_BASE + (mode & 0xfc); - shift = (~mode & 0x3) * 8; - - tmp = __REG(reg); - tmp &= ~(0xff << shift); - tmp |= ((mode >> 8) & 0xff) << shift; - __REG(reg) = tmp; -} - -#if defined(CONFIG_DISPLAY_CPUINFO) -int print_cpuinfo(void) -{ - printf("CPU: Freescale i.MX31 at %d MHz\n", - mx31_get_mcu_main_clk() / 1000000); - return 0; -} -#endif |