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Diffstat (limited to 'cpu/arm926ejs/mx25/generic.c')
-rw-r--r--cpu/arm926ejs/mx25/generic.c263
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 */
generated by cgit v1.1 at 2024-12-04 08:05:16 +0000