diff options
author | Peter Tyser <ptyser@xes-inc.com> | 2010-04-12 22:28:11 -0500 |
---|---|---|
committer | Wolfgang Denk <wd@denx.de> | 2010-04-13 09:13:24 +0200 |
commit | 84ad688473bec2875e171b71040eb9e033c6c206 (patch) | |
tree | cf181129cbdf5d833d55262f759ea2cd9cafaff7 /cpu/arm926ejs/mx25/generic.c | |
parent | 8f0fec74ac6d0f3a7134ccebafa1ed9bd8c712ba (diff) | |
download | u-boot-imx-84ad688473bec2875e171b71040eb9e033c6c206.zip u-boot-imx-84ad688473bec2875e171b71040eb9e033c6c206.tar.gz u-boot-imx-84ad688473bec2875e171b71040eb9e033c6c206.tar.bz2 |
arm: Move cpu/$CPU to arch/arm/cpu/$CPU
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'cpu/arm926ejs/mx25/generic.c')
-rw-r--r-- | cpu/arm926ejs/mx25/generic.c | 263 |
1 files changed, 0 insertions, 263 deletions
diff --git a/cpu/arm926ejs/mx25/generic.c b/cpu/arm926ejs/mx25/generic.c deleted file mode 100644 index 694841d..0000000 --- a/cpu/arm926ejs/mx25/generic.c +++ /dev/null @@ -1,263 +0,0 @@ -/* - * (C) Copyright 2009 DENX Software Engineering - * Author: John Rigby <jrigby@gmail.com> - * - * Based on mx27/generic.c: - * Copyright (c) 2008 Eric Jarrige <eric.jarrige@armadeus.org> - * Copyright (c) 2009 Ilya Yanok <yanok@emcraft.com> - * - * 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 <div64.h> -#include <netdev.h> -#include <asm/io.h> -#include <asm/arch/imx-regs.h> -#include <asm/arch/imx25-pinmux.h> -#ifdef CONFIG_MXC_MMC -#include <asm/arch/mxcmmc.h> -#endif - -/* - * get the system pll clock in Hz - * - * mfi + mfn / (mfd +1) - * f = 2 * f_ref * -------------------- - * pd + 1 - */ -static unsigned int imx_decode_pll (unsigned int pll, unsigned int f_ref) -{ - unsigned int mfi = (pll >> CCM_PLL_MFI_SHIFT) - & CCM_PLL_MFI_MASK; - unsigned int mfn = (pll >> CCM_PLL_MFN_SHIFT) - & CCM_PLL_MFN_MASK; - unsigned int mfd = (pll >> CCM_PLL_MFD_SHIFT) - & CCM_PLL_MFD_MASK; - unsigned int pd = (pll >> CCM_PLL_PD_SHIFT) - & CCM_PLL_PD_MASK; - - mfi = mfi <= 5 ? 5 : mfi; - - return lldiv (2 * (u64) f_ref * (mfi * (mfd + 1) + mfn), - (mfd + 1) * (pd + 1)); -} - -static ulong imx_get_mpllclk (void) -{ - struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE; - ulong fref = 24000000; - - return imx_decode_pll (readl (&ccm->mpctl), fref); -} - -ulong imx_get_armclk (void) -{ - struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE; - ulong cctl = readl (&ccm->cctl); - ulong fref = imx_get_mpllclk (); - ulong div; - - if (cctl & CCM_CCTL_ARM_SRC) - fref = lldiv ((fref * 3), 4); - - div = ((cctl >> CCM_CCTL_ARM_DIV_SHIFT) - & CCM_CCTL_ARM_DIV_MASK) + 1; - - return lldiv (fref, div); -} - -ulong imx_get_ahbclk (void) -{ - struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE; - ulong cctl = readl (&ccm->cctl); - ulong fref = imx_get_armclk (); - ulong div; - - div = ((cctl >> CCM_CCTL_AHB_DIV_SHIFT) - & CCM_CCTL_AHB_DIV_MASK) + 1; - - return lldiv (fref, div); -} - -ulong imx_get_perclk (int clk) -{ - struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE; - ulong fref = imx_get_ahbclk (); - ulong div; - - div = readl (&ccm->pcdr[CCM_PERCLK_REG (clk)]); - div = ((div >> CCM_PERCLK_SHIFT (clk)) & CCM_PERCLK_MASK) + 1; - - return lldiv (fref, div); -} - -#if defined(CONFIG_DISPLAY_CPUINFO) -int print_cpuinfo (void) -{ - char buf[32]; - - printf ("CPU: Freescale i.MX25 at %s MHz\n\n", - strmhz (buf, imx_get_mpllclk ())); - return 0; -} -#endif - -int cpu_eth_init (bd_t * bis) -{ -#if defined(CONFIG_FEC_MXC) - struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE; - ulong val; - - val = readl (&ccm->cgr0); - val |= (1 << 23); - writel (val, &ccm->cgr0); - return fecmxc_initialize (bis); -#else - return 0; -#endif -} - -/* - * Initializes on-chip MMC controllers. - * to override, implement board_mmc_init() - */ -int cpu_mmc_init (bd_t * bis) -{ -#ifdef CONFIG_MXC_MMC - return mxc_mmc_init (bis); -#else - return 0; -#endif -} - -#ifdef CONFIG_MXC_UART -void mx25_uart_init_pins (void) -{ - struct iomuxc_mux_ctl *muxctl; - struct iomuxc_pad_ctl *padctl; - u32 inpadctl; - u32 outpadctl; - u32 muxmode0; - - muxctl = (struct iomuxc_mux_ctl *)IMX_IOPADMUX_BASE; - padctl = (struct iomuxc_pad_ctl *)IMX_IOPADCTL_BASE; - muxmode0 = MX25_PIN_MUX_MODE (0); - /* - * set up input pins with hysteresis and 100K pull-ups - */ - inpadctl = MX25_PIN_PAD_CTL_HYS - | MX25_PIN_PAD_CTL_PKE - | MX25_PIN_PAD_CTL_PUE | MX25_PIN_PAD_CTL_100K_PU; - - /* - * set up output pins with 100K pull-downs - * FIXME: need to revisit this - * PUE is ignored if PKE is not set - * so the right value here is likely - * 0x0 for no pull up/down - * or - * 0xc0 for 100k pull down - */ - outpadctl = MX25_PIN_PAD_CTL_PUE | MX25_PIN_PAD_CTL_100K_PD; - - /* UART1 */ - /* rxd */ - writel (muxmode0, &muxctl->pad_uart1_rxd); - writel (inpadctl, &padctl->pad_uart1_rxd); - - /* txd */ - writel (muxmode0, &muxctl->pad_uart1_txd); - writel (outpadctl, &padctl->pad_uart1_txd); - - /* rts */ - writel (muxmode0, &muxctl->pad_uart1_rts); - writel (outpadctl, &padctl->pad_uart1_rts); - - /* cts */ - writel (muxmode0, &muxctl->pad_uart1_cts); - writel (inpadctl, &padctl->pad_uart1_cts); -} -#endif /* CONFIG_MXC_UART */ - -#ifdef CONFIG_FEC_MXC -void mx25_fec_init_pins (void) -{ - struct iomuxc_mux_ctl *muxctl; - struct iomuxc_pad_ctl *padctl; - u32 inpadctl_100kpd; - u32 inpadctl_22kpu; - u32 outpadctl; - u32 muxmode0; - - muxctl = (struct iomuxc_mux_ctl *)IMX_IOPADMUX_BASE; - padctl = (struct iomuxc_pad_ctl *)IMX_IOPADCTL_BASE; - muxmode0 = MX25_PIN_MUX_MODE (0); - inpadctl_100kpd = MX25_PIN_PAD_CTL_HYS - | MX25_PIN_PAD_CTL_PKE - | MX25_PIN_PAD_CTL_PUE | MX25_PIN_PAD_CTL_100K_PD; - inpadctl_22kpu = MX25_PIN_PAD_CTL_HYS - | MX25_PIN_PAD_CTL_PKE - | MX25_PIN_PAD_CTL_PUE | MX25_PIN_PAD_CTL_22K_PU; - /* - * set up output pins with 100K pull-downs - * FIXME: need to revisit this - * PUE is ignored if PKE is not set - * so the right value here is likely - * 0x0 for no pull - * or - * 0xc0 for 100k pull down - */ - outpadctl = MX25_PIN_PAD_CTL_PUE | MX25_PIN_PAD_CTL_100K_PD; - - /* FEC_TX_CLK */ - writel (muxmode0, &muxctl->pad_fec_tx_clk); - writel (inpadctl_100kpd, &padctl->pad_fec_tx_clk); - - /* FEC_RX_DV */ - writel (muxmode0, &muxctl->pad_fec_rx_dv); - writel (inpadctl_100kpd, &padctl->pad_fec_rx_dv); - - /* FEC_RDATA0 */ - writel (muxmode0, &muxctl->pad_fec_rdata0); - writel (inpadctl_100kpd, &padctl->pad_fec_rdata0); - - /* FEC_TDATA0 */ - writel (muxmode0, &muxctl->pad_fec_tdata0); - writel (outpadctl, &padctl->pad_fec_tdata0); - - /* FEC_TX_EN */ - writel (muxmode0, &muxctl->pad_fec_tx_en); - writel (outpadctl, &padctl->pad_fec_tx_en); - - /* FEC_MDC */ - writel (muxmode0, &muxctl->pad_fec_mdc); - writel (outpadctl, &padctl->pad_fec_mdc); - - /* FEC_MDIO */ - writel (muxmode0, &muxctl->pad_fec_mdio); - writel (inpadctl_22kpu, &padctl->pad_fec_mdio); - - /* FEC_RDATA1 */ - writel (muxmode0, &muxctl->pad_fec_rdata1); - writel (inpadctl_100kpd, &padctl->pad_fec_rdata1); - - /* FEC_TDATA1 */ - writel (muxmode0, &muxctl->pad_fec_tdata1); - writel (outpadctl, &padctl->pad_fec_tdata1); - -} -#endif /* CONFIG_FEC_MXC */ |