+// SPDX-License-Identifier: GPL-2.0+
/*
* (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 <clock_legacy.h>
#include <div64.h>
+#include <init.h>
+#include <net.h>
#include <netdev.h>
+#include <vsprintf.h>
#include <asm/io.h>
+#include <asm/arch-imx/cpu.h>
#include <asm/arch/imx-regs.h>
-#include <asm/arch/imx25-pinmux.h>
-#ifdef CONFIG_MXC_MMC
-#include <asm/arch/mxcmmc.h>
+#include <asm/arch/clock.h>
+
+#ifdef CONFIG_FSL_ESDHC_IMX
+#include <fsl_esdhc_imx.h>
+
+DECLARE_GLOBAL_DATA_PTR;
#endif
/*
* f = 2 * f_ref * --------------------
* pd + 1
*/
-static unsigned int imx_decode_pll (unsigned int pll, unsigned int f_ref)
+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)
+ int mfn = (pll >> CCM_PLL_MFN_SHIFT)
& CCM_PLL_MFN_MASK;
unsigned int mfd = (pll >> CCM_PLL_MFD_SHIFT)
& CCM_PLL_MFD_MASK;
& CCM_PLL_PD_MASK;
mfi = mfi <= 5 ? 5 : mfi;
+ mfn = mfn >= 512 ? mfn - 1024 : mfn;
+ mfd += 1;
+ pd += 1;
- return lldiv (2 * (u64) f_ref * (mfi * (mfd + 1) + mfn),
- (mfd + 1) * (pd + 1));
+ return lldiv(2 * (u64) f_ref * (mfi * mfd + mfn),
+ mfd * pd);
}
-static ulong imx_get_mpllclk (void)
+static ulong imx_get_mpllclk(void)
{
struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE;
- ulong fref = 24000000;
+ ulong fref = MXC_HCLK;
- return imx_decode_pll (readl (&ccm->mpctl), fref);
+ return imx_decode_pll(readl(&ccm->mpctl), fref);
}
-ulong imx_get_armclk (void)
+static ulong imx_get_upllclk(void)
{
struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE;
- ulong cctl = readl (&ccm->cctl);
- ulong fref = imx_get_mpllclk ();
+ ulong fref = MXC_HCLK;
+
+ return imx_decode_pll(readl(&ccm->upctl), fref);
+}
+
+static 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);
+ fref = lldiv((u64) fref * 3, 4);
div = ((cctl >> CCM_CCTL_ARM_DIV_SHIFT)
& CCM_CCTL_ARM_DIV_MASK) + 1;
- return lldiv (fref, div);
+ return fref / div;
}
-ulong imx_get_ahbclk (void)
+static 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 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);
+ return fref / div;
+}
+
+static ulong imx_get_ipgclk(void)
+{
+ return imx_get_ahbclk() / 2;
}
-ulong imx_get_perclk (int clk)
+static ulong imx_get_perclk(int clk)
{
struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE;
- ulong fref = imx_get_ahbclk ();
+ ulong fref = readl(&ccm->mcr) & (1 << clk) ? imx_get_upllclk() :
+ imx_get_ahbclk();
ulong div;
- div = readl (&ccm->pcdr[CCM_PERCLK_REG (clk)]);
- div = ((div >> CCM_PERCLK_SHIFT (clk)) & CCM_PERCLK_MASK) + 1;
+ div = readl(&ccm->pcdr[CCM_PERCLK_REG(clk)]);
+ div = ((div >> CCM_PERCLK_SHIFT(clk)) & CCM_PERCLK_MASK) + 1;
- return lldiv (fref, div);
+ return fref / div;
+}
+
+int imx_set_perclk(enum mxc_clock clk, bool from_upll, unsigned int freq)
+{
+ struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE;
+ ulong fref = from_upll ? imx_get_upllclk() : imx_get_ahbclk();
+ ulong div = (fref + freq - 1) / freq;
+
+ if (clk > MXC_UART_CLK || !div || --div > CCM_PERCLK_MASK)
+ return -EINVAL;
+
+ clrsetbits_le32(&ccm->pcdr[CCM_PERCLK_REG(clk)],
+ CCM_PERCLK_MASK << CCM_PERCLK_SHIFT(clk),
+ div << CCM_PERCLK_SHIFT(clk));
+ if (from_upll)
+ setbits_le32(&ccm->mcr, 1 << clk);
+ else
+ clrbits_le32(&ccm->mcr, 1 << clk);
+ return 0;
+}
+
+unsigned int mxc_get_clock(enum mxc_clock clk)
+{
+ if (clk >= MXC_CLK_NUM)
+ return -1;
+ switch (clk) {
+ case MXC_ARM_CLK:
+ return imx_get_armclk();
+ case MXC_AHB_CLK:
+ return imx_get_ahbclk();
+ case MXC_IPG_CLK:
+ case MXC_CSPI_CLK:
+ case MXC_FEC_CLK:
+ return imx_get_ipgclk();
+ default:
+ return imx_get_perclk(clk);
+ }
}
u32 get_cpu_rev(void)
case 0x01:
system_rev |= CHIP_REV_1_1;
break;
+ case 0x02:
+ system_rev |= CHIP_REV_1_2;
+ break;
default:
system_rev |= 0x8000;
break;
}
-int print_cpuinfo (void)
+int print_cpuinfo(void)
{
char buf[32];
u32 cpurev = get_cpu_rev();
printf("CPU: Freescale i.MX25 rev%d.%d%s at %s MHz\n",
(cpurev & 0xF0) >> 4, (cpurev & 0x0F),
((cpurev & 0x8000) ? " unknown" : ""),
- strmhz (buf, imx_get_armclk ()));
- printf("Reset cause: %s\n\n", get_reset_cause());
+ strmhz(buf, imx_get_armclk()));
+ printf("Reset cause: %s\n", get_reset_cause());
return 0;
}
#endif
-int cpu_eth_init (bd_t * bis)
-{
#if defined(CONFIG_FEC_MXC)
+/*
+ * Initializes on-chip ethernet controllers.
+ * to override, implement board_eth_init()
+ */
+int cpu_eth_init(bd_t *bis)
+{
struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE;
ulong val;
- val = readl (&ccm->cgr0);
+ val = readl(&ccm->cgr0);
val |= (1 << 23);
- writel (val, &ccm->cgr0);
- return fecmxc_initialize (bis);
+ writel(val, &ccm->cgr0);
+ return fecmxc_initialize(bis);
+}
+#endif
+
+int get_clocks(void)
+{
+#ifdef CONFIG_FSL_ESDHC_IMX
+#if CONFIG_SYS_FSL_ESDHC_ADDR == IMX_MMC_SDHC2_BASE
+ gd->arch.sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
#else
- return 0;
+ gd->arch.sdhc_clk = mxc_get_clock(MXC_ESDHC1_CLK);
+#endif
#endif
+ return 0;
}
+#ifdef CONFIG_FSL_ESDHC_IMX
/*
* 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_uart1_init_pins(void)
+int cpu_mmc_init(bd_t *bis)
{
- 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);
+ return fsl_esdhc_mmc_init(bis);
}
-#endif /* CONFIG_MXC_UART */
+#endif
#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);
-
-}
-
-void imx_get_mac_from_fuse(unsigned char *mac)
+void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
{
int i;
struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE;
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