From df1bf4bdb2a3a26d4bde8ae1aefc16385dd4898f Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Sat, 5 Jul 2008 10:02:48 +0200 Subject: i.MX3: introduce clock API This patch introduces the clock API for for arch-mxc Signed-off-by: Sascha Hauer --- arch/arm/mach-mx3/Makefile | 2 +- arch/arm/mach-mx3/clock.c | 1147 +++++++++++++++++++++++++++++++++++++ arch/arm/mach-mx3/crm_regs.h | 401 +++++++++++++ include/asm-arm/arch-mxc/common.h | 1 + 4 files changed, 1550 insertions(+), 1 deletion(-) create mode 100644 arch/arm/mach-mx3/clock.c create mode 100644 arch/arm/mach-mx3/crm_regs.h diff --git a/arch/arm/mach-mx3/Makefile b/arch/arm/mach-mx3/Makefile index cbec997..febb37f 100644 --- a/arch/arm/mach-mx3/Makefile +++ b/arch/arm/mach-mx3/Makefile @@ -4,5 +4,5 @@ # Object file lists. -obj-y := mm.o time.o +obj-y := mm.o time.o clock.o obj-$(CONFIG_MACH_MX31ADS) += mx31ads.o diff --git a/arch/arm/mach-mx3/clock.c b/arch/arm/mach-mx3/clock.c new file mode 100644 index 0000000..2f36359 --- /dev/null +++ b/arch/arm/mach-mx3/clock.c @@ -0,0 +1,1147 @@ +/* + * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright (C) 2008 by Sascha Hauer + * + * 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., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301, USA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "crm_regs.h" + +#define PRE_DIV_MIN_FREQ 10000000 /* Minimum Frequency after Predivider */ + +static void __calc_pre_post_dividers(u32 div, u32 *pre, u32 *post) +{ + u32 min_pre, temp_pre, old_err, err; + + if (div >= 512) { + *pre = 8; + *post = 64; + } else if (div >= 64) { + min_pre = (div - 1) / 64 + 1; + old_err = 8; + for (temp_pre = 8; temp_pre >= min_pre; temp_pre--) { + err = div % temp_pre; + if (err == 0) { + *pre = temp_pre; + break; + } + err = temp_pre - err; + if (err < old_err) { + old_err = err; + *pre = temp_pre; + } + } + *post = (div + *pre - 1) / *pre; + } else if (div <= 8) { + *pre = div; + *post = 1; + } else { + *pre = 1; + *post = div; + } +} + +static struct clk mcu_pll_clk; +static struct clk mcu_main_clk; +static struct clk usb_pll_clk; +static struct clk serial_pll_clk; +static struct clk ipg_clk; +static struct clk ckih_clk; +static struct clk ahb_clk; + +static int _clk_enable(struct clk *clk) +{ + u32 reg; + + reg = __raw_readl(clk->enable_reg); + reg |= 3 << clk->enable_shift; + __raw_writel(reg, clk->enable_reg); + + return 0; +} + +static void _clk_disable(struct clk *clk) +{ + u32 reg; + + reg = __raw_readl(clk->enable_reg); + reg &= ~(3 << clk->enable_shift); + __raw_writel(reg, clk->enable_reg); +} + +static void _clk_emi_disable(struct clk *clk) +{ + u32 reg; + + reg = __raw_readl(clk->enable_reg); + reg &= ~(3 << clk->enable_shift); + reg |= (1 << clk->enable_shift); + __raw_writel(reg, clk->enable_reg); +} + +static int _clk_pll_set_rate(struct clk *clk, unsigned long rate) +{ + u32 reg; + signed long pd = 1; /* Pre-divider */ + signed long mfi; /* Multiplication Factor (Integer part) */ + signed long mfn; /* Multiplication Factor (Integer part) */ + signed long mfd; /* Multiplication Factor (Denominator Part) */ + signed long tmp; + u32 ref_freq = clk_get_rate(clk->parent); + + while (((ref_freq / pd) * 10) > rate) + pd++; + + if ((ref_freq / pd) < PRE_DIV_MIN_FREQ) + return -EINVAL; + + /* the ref_freq/2 in the following is to round up */ + mfi = (((rate / 2) * pd) + (ref_freq / 2)) / ref_freq; + if (mfi < 5 || mfi > 15) + return -EINVAL; + + /* pick a mfd value that will work + * then solve for mfn */ + mfd = ref_freq / 50000; + + /* + * pll_freq * pd * mfd + * mfn = -------------------- - (mfi * mfd) + * 2 * ref_freq + */ + /* the tmp/2 is for rounding */ + tmp = ref_freq / 10000; + mfn = + ((((((rate / 2) + (tmp / 2)) / tmp) * pd) * mfd) / 10000) - + (mfi * mfd); + + mfn = mfn & 0x3ff; + pd--; + mfd--; + + /* Change the Pll value */ + reg = (mfi << MXC_CCM_PCTL_MFI_OFFSET) | + (mfn << MXC_CCM_PCTL_MFN_OFFSET) | + (mfd << MXC_CCM_PCTL_MFD_OFFSET) | (pd << MXC_CCM_PCTL_PD_OFFSET); + + if (clk == &mcu_pll_clk) + __raw_writel(reg, MXC_CCM_MPCTL); + else if (clk == &usb_pll_clk) + __raw_writel(reg, MXC_CCM_UPCTL); + else if (clk == &serial_pll_clk) + __raw_writel(reg, MXC_CCM_SRPCTL); + + return 0; +} + +static unsigned long _clk_pll_get_rate(struct clk *clk) +{ + long mfi, mfn, mfd, pdf, ref_clk, mfn_abs; + unsigned long reg, ccmr; + s64 temp; + unsigned int prcs; + + ccmr = __raw_readl(MXC_CCM_CCMR); + prcs = (ccmr & MXC_CCM_CCMR_PRCS_MASK) >> MXC_CCM_CCMR_PRCS_OFFSET; + if (prcs == 0x1) + ref_clk = CKIL_CLK_FREQ * 1024; + else + ref_clk = clk_get_rate(&ckih_clk); + + if (clk == &mcu_pll_clk) { + if ((ccmr & MXC_CCM_CCMR_MPE) == 0) + return ref_clk; + if ((ccmr & MXC_CCM_CCMR_MDS) != 0) + return ref_clk; + reg = __raw_readl(MXC_CCM_MPCTL); + } else if (clk == &usb_pll_clk) + reg = __raw_readl(MXC_CCM_UPCTL); + else if (clk == &serial_pll_clk) + reg = __raw_readl(MXC_CCM_SRPCTL); + else { + BUG(); + return 0; + } + + pdf = (reg & MXC_CCM_PCTL_PD_MASK) >> MXC_CCM_PCTL_PD_OFFSET; + mfd = (reg & MXC_CCM_PCTL_MFD_MASK) >> MXC_CCM_PCTL_MFD_OFFSET; + mfi = (reg & MXC_CCM_PCTL_MFI_MASK) >> MXC_CCM_PCTL_MFI_OFFSET; + mfi = (mfi <= 5) ? 5 : mfi; + mfn = mfn_abs = reg & MXC_CCM_PCTL_MFN_MASK; + + if (mfn >= 0x200) { + mfn |= 0xFFFFFE00; + mfn_abs = -mfn; + } + + ref_clk *= 2; + ref_clk /= pdf + 1; + + temp = (u64) ref_clk * mfn_abs; + do_div(temp, mfd + 1); + if (mfn < 0) + temp = -temp; + temp = (ref_clk * mfi) + temp; + + return temp; +} + +static int _clk_usb_pll_enable(struct clk *clk) +{ + u32 reg; + + reg = __raw_readl(MXC_CCM_CCMR); + reg |= MXC_CCM_CCMR_UPE; + __raw_writel(reg, MXC_CCM_CCMR); + + /* No lock bit on MX31, so using max time from spec */ + udelay(80); + + return 0; +} + +static void _clk_usb_pll_disable(struct clk *clk) +{ + u32 reg; + + reg = __raw_readl(MXC_CCM_CCMR); + reg &= ~MXC_CCM_CCMR_UPE; + __raw_writel(reg, MXC_CCM_CCMR); +} + +static int _clk_serial_pll_enable(struct clk *clk) +{ + u32 reg; + + reg = __raw_readl(MXC_CCM_CCMR); + reg |= MXC_CCM_CCMR_SPE; + __raw_writel(reg, MXC_CCM_CCMR); + + /* No lock bit on MX31, so using max time from spec */ + udelay(80); + + return 0; +} + +static void _clk_serial_pll_disable(struct clk *clk) +{ + u32 reg; + + reg = __raw_readl(MXC_CCM_CCMR); + reg &= ~MXC_CCM_CCMR_SPE; + __raw_writel(reg, MXC_CCM_CCMR); +} + +#define PDR0(mask, off) ((__raw_readl(MXC_CCM_PDR0) & mask) >> off) +#define PDR1(mask, off) ((__raw_readl(MXC_CCM_PDR1) & mask) >> off) +#define PDR2(mask, off) ((__raw_readl(MXC_CCM_PDR2) & mask) >> off) + +static unsigned long _clk_mcu_main_get_rate(struct clk *clk) +{ + u32 pmcr0 = __raw_readl(MXC_CCM_PMCR0); + + if ((pmcr0 & MXC_CCM_PMCR0_DFSUP1) == MXC_CCM_PMCR0_DFSUP1_SPLL) + return clk_get_rate(&serial_pll_clk); + else + return clk_get_rate(&mcu_pll_clk); +} + +static unsigned long _clk_hclk_get_rate(struct clk *clk) +{ + unsigned long max_pdf; + + max_pdf = PDR0(MXC_CCM_PDR0_MAX_PODF_MASK, + MXC_CCM_PDR0_MAX_PODF_OFFSET); + return clk_get_rate(clk->parent) / (max_pdf + 1); +} + +static unsigned long _clk_ipg_get_rate(struct clk *clk) +{ + unsigned long ipg_pdf; + + ipg_pdf = PDR0(MXC_CCM_PDR0_IPG_PODF_MASK, + MXC_CCM_PDR0_IPG_PODF_OFFSET); + return clk_get_rate(clk->parent) / (ipg_pdf + 1); +} + +static unsigned long _clk_nfc_get_rate(struct clk *clk) +{ + unsigned long nfc_pdf; + + nfc_pdf = PDR0(MXC_CCM_PDR0_NFC_PODF_MASK, + MXC_CCM_PDR0_NFC_PODF_OFFSET); + return clk_get_rate(clk->parent) / (nfc_pdf + 1); +} + +static unsigned long _clk_hsp_get_rate(struct clk *clk) +{ + unsigned long hsp_pdf; + + hsp_pdf = PDR0(MXC_CCM_PDR0_HSP_PODF_MASK, + MXC_CCM_PDR0_HSP_PODF_OFFSET); + return clk_get_rate(clk->parent) / (hsp_pdf + 1); +} + +static unsigned long _clk_usb_get_rate(struct clk *clk) +{ + unsigned long usb_pdf, usb_prepdf; + + usb_pdf = PDR1(MXC_CCM_PDR1_USB_PODF_MASK, + MXC_CCM_PDR1_USB_PODF_OFFSET); + usb_prepdf = PDR1(MXC_CCM_PDR1_USB_PRDF_MASK, + MXC_CCM_PDR1_USB_PRDF_OFFSET); + return clk_get_rate(clk->parent) / (usb_prepdf + 1) / (usb_pdf + 1); +} + +static unsigned long _clk_csi_get_rate(struct clk *clk) +{ + u32 reg, pre, post; + + reg = __raw_readl(MXC_CCM_PDR0); + pre = (reg & MXC_CCM_PDR0_CSI_PRDF_MASK) >> + MXC_CCM_PDR0_CSI_PRDF_OFFSET; + pre++; + post = (reg & MXC_CCM_PDR0_CSI_PODF_MASK) >> + MXC_CCM_PDR0_CSI_PODF_OFFSET; + post++; + return clk_get_rate(clk->parent) / (pre * post); +} + +static unsigned long _clk_csi_round_rate(struct clk *clk, unsigned long rate) +{ + u32 pre, post, parent = clk_get_rate(clk->parent); + u32 div = parent / rate; + + if (parent % rate) + div++; + + __calc_pre_post_dividers(div, &pre, &post); + + return parent / (pre * post); +} + +static int _clk_csi_set_rate(struct clk *clk, unsigned long rate) +{ + u32 reg, div, pre, post, parent = clk_get_rate(clk->parent); + + div = parent / rate; + + if ((parent / div) != rate) + return -EINVAL; + + __calc_pre_post_dividers(div, &pre, &post); + + /* Set CSI clock divider */ + reg = __raw_readl(MXC_CCM_PDR0) & + ~(MXC_CCM_PDR0_CSI_PODF_MASK | MXC_CCM_PDR0_CSI_PRDF_MASK); + reg |= (post - 1) << MXC_CCM_PDR0_CSI_PODF_OFFSET; + reg |= (pre - 1) << MXC_CCM_PDR0_CSI_PRDF_OFFSET; + __raw_writel(reg, MXC_CCM_PDR0); + + return 0; +} + +static unsigned long _clk_per_get_rate(struct clk *clk) +{ + unsigned long per_pdf; + + per_pdf = PDR0(MXC_CCM_PDR0_PER_PODF_MASK, + MXC_CCM_PDR0_PER_PODF_OFFSET); + return clk_get_rate(clk->parent) / (per_pdf + 1); +} + +static unsigned long _clk_ssi1_get_rate(struct clk *clk) +{ + unsigned long ssi1_pdf, ssi1_prepdf; + + ssi1_pdf = PDR1(MXC_CCM_PDR1_SSI1_PODF_MASK, + MXC_CCM_PDR1_SSI1_PODF_OFFSET); + ssi1_prepdf = PDR1(MXC_CCM_PDR1_SSI1_PRE_PODF_MASK, + MXC_CCM_PDR1_SSI1_PRE_PODF_OFFSET); + return clk_get_rate(clk->parent) / (ssi1_prepdf + 1) / (ssi1_pdf + 1); +} + +static unsigned long _clk_ssi2_get_rate(struct clk *clk) +{ + unsigned long ssi2_pdf, ssi2_prepdf; + + ssi2_pdf = PDR1(MXC_CCM_PDR1_SSI2_PODF_MASK, + MXC_CCM_PDR1_SSI2_PODF_OFFSET); + ssi2_prepdf = PDR1(MXC_CCM_PDR1_SSI2_PRE_PODF_MASK, + MXC_CCM_PDR1_SSI2_PRE_PODF_OFFSET); + return clk_get_rate(clk->parent) / (ssi2_prepdf + 1) / (ssi2_pdf + 1); +} + +static unsigned long _clk_firi_get_rate(struct clk *clk) +{ + unsigned long firi_pdf, firi_prepdf; + + firi_pdf = PDR1(MXC_CCM_PDR1_FIRI_PODF_MASK, + MXC_CCM_PDR1_FIRI_PODF_OFFSET); + firi_prepdf = PDR1(MXC_CCM_PDR1_FIRI_PRE_PODF_MASK, + MXC_CCM_PDR1_FIRI_PRE_PODF_OFFSET); + return clk_get_rate(clk->parent) / (firi_prepdf + 1) / (firi_pdf + 1); +} + +static unsigned long _clk_firi_round_rate(struct clk *clk, unsigned long rate) +{ + u32 pre, post; + u32 parent = clk_get_rate(clk->parent); + u32 div = parent / rate; + + if (parent % rate) + div++; + + __calc_pre_post_dividers(div, &pre, &post); + + return parent / (pre * post); + +} + +static int _clk_firi_set_rate(struct clk *clk, unsigned long rate) +{ + u32 reg, div, pre, post, parent = clk_get_rate(clk->parent); + + div = parent / rate; + + if ((parent / div) != rate) + return -EINVAL; + + __calc_pre_post_dividers(div, &pre, &post); + + /* Set FIRI clock divider */ + reg = __raw_readl(MXC_CCM_PDR1) & + ~(MXC_CCM_PDR1_FIRI_PODF_MASK | MXC_CCM_PDR1_FIRI_PRE_PODF_MASK); + reg |= (pre - 1) << MXC_CCM_PDR1_FIRI_PRE_PODF_OFFSET; + reg |= (post - 1) << MXC_CCM_PDR1_FIRI_PODF_OFFSET; + __raw_writel(reg, MXC_CCM_PDR1); + + return 0; +} + +static unsigned long _clk_mbx_get_rate(struct clk *clk) +{ + return clk_get_rate(clk->parent) / 2; +} + +static unsigned long _clk_mstick1_get_rate(struct clk *clk) +{ + unsigned long msti_pdf; + + msti_pdf = PDR2(MXC_CCM_PDR2_MST1_PDF_MASK, + MXC_CCM_PDR2_MST1_PDF_OFFSET); + return clk_get_rate(clk->parent) / (msti_pdf + 1); +} + +static unsigned long _clk_mstick2_get_rate(struct clk *clk) +{ + unsigned long msti_pdf; + + msti_pdf = PDR2(MXC_CCM_PDR2_MST2_PDF_MASK, + MXC_CCM_PDR2_MST2_PDF_OFFSET); + return clk_get_rate(clk->parent) / (msti_pdf + 1); +} + +static unsigned long ckih_rate; + +static unsigned long clk_ckih_get_rate(struct clk *clk) +{ + return ckih_rate; +} + +static struct clk ckih_clk = { + .name = "ckih", + .get_rate = clk_ckih_get_rate, +}; + +static unsigned long clk_ckil_get_rate(struct clk *clk) +{ + return CKIL_CLK_FREQ; +} + +static struct clk ckil_clk = { + .name = "ckil", + .get_rate = clk_ckil_get_rate, +}; + +static struct clk mcu_pll_clk = { + .name = "mcu_pll", + .parent = &ckih_clk, + .set_rate = _clk_pll_set_rate, + .get_rate = _clk_pll_get_rate, +}; + +static struct clk mcu_main_clk = { + .name = "mcu_main_clk", + .parent = &mcu_pll_clk, + .get_rate = _clk_mcu_main_get_rate, +}; + +static struct clk serial_pll_clk = { + .name = "serial_pll", + .parent = &ckih_clk, + .set_rate = _clk_pll_set_rate, + .get_rate = _clk_pll_get_rate, + .enable = _clk_serial_pll_enable, + .disable = _clk_serial_pll_disable, +}; + +static struct clk usb_pll_clk = { + .name = "usb_pll", + .parent = &ckih_clk, + .set_rate = _clk_pll_set_rate, + .get_rate = _clk_pll_get_rate, + .enable = _clk_usb_pll_enable, + .disable = _clk_usb_pll_disable, +}; + +static struct clk ahb_clk = { + .name = "ahb_clk", + .parent = &mcu_main_clk, + .get_rate = _clk_hclk_get_rate, +}; + +static struct clk per_clk = { + .name = "per_clk", + .parent = &usb_pll_clk, + .get_rate = _clk_per_get_rate, +}; + +static struct clk perclk_clk = { + .name = "perclk_clk", + .parent = &ipg_clk, +}; + +static struct clk cspi_clk[] = { + { + .name = "cspi_clk", + .id = 0, + .parent = &ipg_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR2, + .enable_shift = MXC_CCM_CGR2_CSPI1_OFFSET, + .disable = _clk_disable,}, + { + .name = "cspi_clk", + .id = 1, + .parent = &ipg_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR2, + .enable_shift = MXC_CCM_CGR2_CSPI2_OFFSET, + .disable = _clk_disable,}, + { + .name = "cspi_clk", + .id = 2, + .parent = &ipg_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR0, + .enable_shift = MXC_CCM_CGR0_CSPI3_OFFSET, + .disable = _clk_disable,}, +}; + +static struct clk ipg_clk = { + .name = "ipg_clk", + .parent = &ahb_clk, + .get_rate = _clk_ipg_get_rate, +}; + +static struct clk emi_clk = { + .name = "emi_clk", + .parent = &ahb_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR2, + .enable_shift = MXC_CCM_CGR2_EMI_OFFSET, + .disable = _clk_emi_disable, +}; + +static struct clk gpt_clk = { + .name = "gpt_clk", + .parent = &perclk_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR0, + .enable_shift = MXC_CCM_CGR0_GPT_OFFSET, + .disable = _clk_disable, +}; + +static struct clk pwm_clk = { + .name = "pwm_clk", + .parent = &perclk_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR0, + .enable_shift = MXC_CCM_CGR1_PWM_OFFSET, + .disable = _clk_disable, +}; + +static struct clk epit_clk[] = { + { + .name = "epit_clk", + .id = 0, + .parent = &perclk_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR0, + .enable_shift = MXC_CCM_CGR0_EPIT1_OFFSET, + .disable = _clk_disable,}, + { + .name = "epit_clk", + .id = 1, + .parent = &perclk_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR0, + .enable_shift = MXC_CCM_CGR0_EPIT2_OFFSET, + .disable = _clk_disable,}, +}; + +static struct clk nfc_clk = { + .name = "nfc_clk", + .parent = &ahb_clk, + .get_rate = _clk_nfc_get_rate, +}; + +static struct clk scc_clk = { + .name = "scc_clk", + .parent = &ipg_clk, +}; + +static struct clk ipu_clk = { + .name = "ipu_clk", + .parent = &mcu_main_clk, + .get_rate = _clk_hsp_get_rate, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR1, + .enable_shift = MXC_CCM_CGR1_IPU_OFFSET, + .disable = _clk_disable, +}; + +static struct clk kpp_clk = { + .name = "kpp_clk", + .parent = &ipg_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR1, + .enable_shift = MXC_CCM_CGR1_KPP_OFFSET, + .disable = _clk_disable, +}; + +static struct clk wdog_clk = { + .name = "wdog_clk", + .parent = &ipg_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR1, + .enable_shift = MXC_CCM_CGR1_WDOG_OFFSET, + .disable = _clk_disable, +}; +static struct clk rtc_clk = { + .name = "rtc_clk", + .parent = &ipg_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR1, + .enable_shift = MXC_CCM_CGR1_RTC_OFFSET, + .disable = _clk_disable, +}; + +static struct clk usb_clk[] = { + { + .name = "usb_clk", + .parent = &usb_pll_clk, + .get_rate = _clk_usb_get_rate,}, + { + .name = "usb_ahb_clk", + .parent = &ahb_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR1, + .enable_shift = MXC_CCM_CGR1_USBOTG_OFFSET, + .disable = _clk_disable,}, +}; + +static struct clk csi_clk = { + .name = "csi_clk", + .parent = &serial_pll_clk, + .get_rate = _clk_csi_get_rate, + .round_rate = _clk_csi_round_rate, + .set_rate = _clk_csi_set_rate, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR1, + .enable_shift = MXC_CCM_CGR1_CSI_OFFSET, + .disable = _clk_disable, +}; + +static struct clk uart_clk[] = { + { + .name = "uart_clk", + .id = 0, + .parent = &perclk_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR0, + .enable_shift = MXC_CCM_CGR0_UART1_OFFSET, + .disable = _clk_disable,}, + { + .name = "uart_clk", + .id = 1, + .parent = &perclk_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR0, + .enable_shift = MXC_CCM_CGR0_UART2_OFFSET, + .disable = _clk_disable,}, + { + .name = "uart_clk", + .id = 2, + .parent = &perclk_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR1, + .enable_shift = MXC_CCM_CGR1_UART3_OFFSET, + .disable = _clk_disable,}, + { + .name = "uart_clk", + .id = 3, + .parent = &perclk_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR1, + .enable_shift = MXC_CCM_CGR1_UART4_OFFSET, + .disable = _clk_disable,}, + { + .name = "uart_clk", + .id = 4, + .parent = &perclk_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR1, + .enable_shift = MXC_CCM_CGR1_UART5_OFFSET, + .disable = _clk_disable,}, +}; + +static struct clk i2c_clk[] = { + { + .name = "i2c_clk", + .id = 0, + .parent = &perclk_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR0, + .enable_shift = MXC_CCM_CGR0_I2C1_OFFSET, + .disable = _clk_disable,}, + { + .name = "i2c_clk", + .id = 1, + .parent = &perclk_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR0, + .enable_shift = MXC_CCM_CGR0_I2C2_OFFSET, + .disable = _clk_disable,}, + { + .name = "i2c_clk", + .id = 2, + .parent = &perclk_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR0, + .enable_shift = MXC_CCM_CGR0_I2C3_OFFSET, + .disable = _clk_disable,}, +}; + +static struct clk owire_clk = { + .name = "owire_clk", + .parent = &perclk_clk, + .enable_reg = MXC_CCM_CGR1, + .enable_shift = MXC_CCM_CGR1_OWIRE_OFFSET, + .enable = _clk_enable, + .disable = _clk_disable, +}; + +static struct clk sdhc_clk[] = { + { + .name = "sdhc_clk", + .id = 0, + .parent = &perclk_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR0, + .enable_shift = MXC_CCM_CGR0_SD_MMC1_OFFSET, + .disable = _clk_disable,}, + { + .name = "sdhc_clk", + .id = 1, + .parent = &perclk_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR0, + .enable_shift = MXC_CCM_CGR0_SD_MMC2_OFFSET, + .disable = _clk_disable,}, +}; + +static struct clk ssi_clk[] = { + { + .name = "ssi_clk", + .parent = &serial_pll_clk, + .get_rate = _clk_ssi1_get_rate, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR0, + .enable_shift = MXC_CCM_CGR0_SSI1_OFFSET, + .disable = _clk_disable,}, + { + .name = "ssi_clk", + .id = 1, + .parent = &serial_pll_clk, + .get_rate = _clk_ssi2_get_rate, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR2, + .enable_shift = MXC_CCM_CGR2_SSI2_OFFSET, + .disable = _clk_disable,}, +}; + +static struct clk firi_clk = { + .name = "firi_clk", + .parent = &usb_pll_clk, + .round_rate = _clk_firi_round_rate, + .set_rate = _clk_firi_set_rate, + .get_rate = _clk_firi_get_rate, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR2, + .enable_shift = MXC_CCM_CGR2_FIRI_OFFSET, + .disable = _clk_disable, +}; + +static struct clk ata_clk = { + .name = "ata_clk", + .parent = &ipg_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR0, + .enable_shift = MXC_CCM_CGR0_ATA_OFFSET, + .disable = _clk_disable, +}; + +static struct clk mbx_clk = { + .name = "mbx_clk", + .parent = &ahb_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR2, + .enable_shift = MXC_CCM_CGR2_GACC_OFFSET, + .get_rate = _clk_mbx_get_rate, +}; + +static struct clk vpu_clk = { + .name = "vpu_clk", + .parent = &ahb_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR2, + .enable_shift = MXC_CCM_CGR2_GACC_OFFSET, + .get_rate = _clk_mbx_get_rate, +}; + +static struct clk rtic_clk = { + .name = "rtic_clk", + .parent = &ahb_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR2, + .enable_shift = MXC_CCM_CGR2_RTIC_OFFSET, + .disable = _clk_disable, +}; + +static struct clk rng_clk = { + .name = "rng_clk", + .parent = &ipg_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR0, + .enable_shift = MXC_CCM_CGR0_RNG_OFFSET, + .disable = _clk_disable, +}; + +static struct clk sdma_clk[] = { + { + .name = "sdma_ahb_clk", + .parent = &ahb_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR0, + .enable_shift = MXC_CCM_CGR0_SDMA_OFFSET, + .disable = _clk_disable,}, + { + .name = "sdma_ipg_clk", + .parent = &ipg_clk,} +}; + +static struct clk mpeg4_clk = { + .name = "mpeg4_clk", + .parent = &ahb_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR1, + .enable_shift = MXC_CCM_CGR1_HANTRO_OFFSET, + .disable = _clk_disable, +}; + +static struct clk vl2cc_clk = { + .name = "vl2cc_clk", + .parent = &ahb_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR1, + .enable_shift = MXC_CCM_CGR1_HANTRO_OFFSET, + .disable = _clk_disable, +}; + +static struct clk mstick_clk[] = { + { + .name = "mstick_clk", + .id = 0, + .parent = &usb_pll_clk, + .get_rate = _clk_mstick1_get_rate, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR1, + .enable_shift = MXC_CCM_CGR1_MEMSTICK1_OFFSET, + .disable = _clk_disable,}, + { + .name = "mstick_clk", + .id = 1, + .parent = &usb_pll_clk, + .get_rate = _clk_mstick2_get_rate, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR1, + .enable_shift = MXC_CCM_CGR1_MEMSTICK2_OFFSET, + .disable = _clk_disable,}, +}; + +static struct clk iim_clk = { + .name = "iim_clk", + .parent = &ipg_clk, + .enable = _clk_enable, + .enable_reg = MXC_CCM_CGR0, + .enable_shift = MXC_CCM_CGR0_IIM_OFFSET, + .disable = _clk_disable, +}; + +static unsigned long _clk_cko1_round_rate(struct clk *clk, unsigned long rate) +{ + u32 div, parent = clk_get_rate(clk->parent); + + div = parent / rate; + if (parent % rate) + div++; + + if (div > 8) + div = 16; + else if (div > 4) + div = 8; + else if (div > 2) + div = 4; + + return parent / div; +} + +static int _clk_cko1_set_rate(struct clk *clk, unsigned long rate) +{ + u32 reg, div, parent = clk_get_rate(clk->parent); + + div = parent / rate; + + if (div == 16) + div = 4; + else if (div == 8) + div = 3; + else if (div == 4) + div = 2; + else if (div == 2) + div = 1; + else if (div == 1) + div = 0; + else + return -EINVAL; + + reg = __raw_readl(MXC_CCM_COSR) & ~MXC_CCM_COSR_CLKOUTDIV_MASK; + reg |= div << MXC_CCM_COSR_CLKOUTDIV_OFFSET; + __raw_writel(reg, MXC_CCM_COSR); + + return 0; +} + +static unsigned long _clk_cko1_get_rate(struct clk *clk) +{ + u32 div; + + div = __raw_readl(MXC_CCM_COSR) & MXC_CCM_COSR_CLKOUTDIV_MASK >> + MXC_CCM_COSR_CLKOUTDIV_OFFSET; + + return clk_get_rate(clk->parent) / (1 << div); +} + +static int _clk_cko1_set_parent(struct clk *clk, struct clk *parent) +{ + u32 reg; + + reg = __raw_readl(MXC_CCM_COSR) & ~MXC_CCM_COSR_CLKOSEL_MASK; + + if (parent == &mcu_main_clk) + reg |= 0 << MXC_CCM_COSR_CLKOSEL_OFFSET; + else if (parent == &ipg_clk) + reg |= 1 << MXC_CCM_COSR_CLKOSEL_OFFSET; + else if (parent == &usb_pll_clk) + reg |= 2 << MXC_CCM_COSR_CLKOSEL_OFFSET; + else if (parent == mcu_main_clk.parent) + reg |= 3 << MXC_CCM_COSR_CLKOSEL_OFFSET; + else if (parent == &ahb_clk) + reg |= 5 << MXC_CCM_COSR_CLKOSEL_OFFSET; + else if (parent == &serial_pll_clk) + reg |= 7 << MXC_CCM_COSR_CLKOSEL_OFFSET; + else if (parent == &ckih_clk) + reg |= 8 << MXC_CCM_COSR_CLKOSEL_OFFSET; + else if (parent == &emi_clk) + reg |= 9 << MXC_CCM_COSR_CLKOSEL_OFFSET; + else if (parent == &ipu_clk) + reg |= 0xA << MXC_CCM_COSR_CLKOSEL_OFFSET; + else if (parent == &nfc_clk) + reg |= 0xB << MXC_CCM_COSR_CLKOSEL_OFFSET; + else if (parent == &uart_clk[0]) + reg |= 0xC << MXC_CCM_COSR_CLKOSEL_OFFSET; + else + return -EINVAL; + + __raw_writel(reg, MXC_CCM_COSR); + + return 0; +} + +static int _clk_cko1_enable(struct clk *clk) +{ + u32 reg; + + reg = __raw_readl(MXC_CCM_COSR) | MXC_CCM_COSR_CLKOEN; + __raw_writel(reg, MXC_CCM_COSR); + + return 0; +} + +static void _clk_cko1_disable(struct clk *clk) +{ + u32 reg; + + reg = __raw_readl(MXC_CCM_COSR) & ~MXC_CCM_COSR_CLKOEN; + __raw_writel(reg, MXC_CCM_COSR); +} + +static struct clk cko1_clk = { + .name = "cko1_clk", + .get_rate = _clk_cko1_get_rate, + .set_rate = _clk_cko1_set_rate, + .round_rate = _clk_cko1_round_rate, + .set_parent = _clk_cko1_set_parent, + .enable = _clk_cko1_enable, + .disable = _clk_cko1_disable, +}; + +static struct clk *mxc_clks[] = { + &ckih_clk, + &ckil_clk, + &mcu_pll_clk, + &usb_pll_clk, + &serial_pll_clk, + &mcu_main_clk, + &ahb_clk, + &per_clk, + &perclk_clk, + &cko1_clk, + &emi_clk, + &cspi_clk[0], + &cspi_clk[1], + &cspi_clk[2], + &ipg_clk, + &gpt_clk, + &pwm_clk, + &wdog_clk, + &rtc_clk, + &epit_clk[0], + &epit_clk[1], + &nfc_clk, + &ipu_clk, + &kpp_clk, + &usb_clk[0], + &usb_clk[1], + &csi_clk, + &uart_clk[0], + &uart_clk[1], + &uart_clk[2], + &uart_clk[3], + &uart_clk[4], + &i2c_clk[0], + &i2c_clk[1], + &i2c_clk[2], + &owire_clk, + &sdhc_clk[0], + &sdhc_clk[1], + &ssi_clk[0], + &ssi_clk[1], + &firi_clk, + &ata_clk, + &rtic_clk, + &rng_clk, + &sdma_clk[0], + &sdma_clk[1], + &mstick_clk[0], + &mstick_clk[1], + &scc_clk, + &iim_clk, +}; + +int __init mxc_clocks_init(unsigned long fref) +{ + u32 reg; + struct clk **clkp; + + ckih_rate = fref; + + for (clkp = mxc_clks; clkp < mxc_clks + ARRAY_SIZE(mxc_clks); clkp++) + clk_register(*clkp); + + if (cpu_is_mx31()) { + clk_register(&mpeg4_clk); + clk_register(&mbx_clk); + } else { + clk_register(&vpu_clk); + clk_register(&vl2cc_clk); + } + + /* Turn off all possible clocks */ + __raw_writel(MXC_CCM_CGR0_GPT_MASK, MXC_CCM_CGR0); + __raw_writel(0, MXC_CCM_CGR1); + + __raw_writel(MXC_CCM_CGR2_EMI_MASK | + MXC_CCM_CGR2_IPMUX1_MASK | + MXC_CCM_CGR2_IPMUX2_MASK | + MXC_CCM_CGR2_MXCCLKENSEL_MASK | /* for MX32 */ + MXC_CCM_CGR2_CHIKCAMPEN_MASK | /* for MX32 */ + MXC_CCM_CGR2_OVRVPUBUSY_MASK | /* for MX32 */ + 1 << 27 | 1 << 28, /* Bit 27 and 28 are not defined for + MX32, but still required to be set */ + MXC_CCM_CGR2); + + clk_disable(&cko1_clk); + clk_disable(&usb_pll_clk); + + pr_info("Clock input source is %ld\n", clk_get_rate(&ckih_clk)); + + clk_enable(&gpt_clk); + clk_enable(&emi_clk); + clk_enable(&iim_clk); + + clk_enable(&serial_pll_clk); + + if (mx31_revision() >= CHIP_REV_2_0) { + reg = __raw_readl(MXC_CCM_PMCR1); + /* No PLL restart on DVFS switch; enable auto EMI handshake */ + reg |= MXC_CCM_PMCR1_PLLRDIS | MXC_CCM_PMCR1_EMIRQ_EN; + __raw_writel(reg, MXC_CCM_PMCR1); + } + + return 0; +} + diff --git a/arch/arm/mach-mx3/crm_regs.h b/arch/arm/mach-mx3/crm_regs.h new file mode 100644 index 0000000..4a0e0ed --- /dev/null +++ b/arch/arm/mach-mx3/crm_regs.h @@ -0,0 +1,401 @@ +/* + * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright (C) 2008 by Sascha Hauer + * + * 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., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301, USA. + */ + +#ifndef __ARCH_ARM_MACH_MX3_CRM_REGS_H__ +#define __ARCH_ARM_MACH_MX3_CRM_REGS_H__ + +#define CKIH_CLK_FREQ 26000000 +#define CKIH_CLK_FREQ_27MHZ 27000000 +#define CKIL_CLK_FREQ 32768 + +#define MXC_CCM_BASE IO_ADDRESS(CCM_BASE_ADDR) + +/* Register addresses */ +#define MXC_CCM_CCMR (MXC_CCM_BASE + 0x00) +#define MXC_CCM_PDR0 (MXC_CCM_BASE + 0x04) +#define MXC_CCM_PDR1 (MXC_CCM_BASE + 0x08) +#define MXC_CCM_RCSR (MXC_CCM_BASE + 0x0C) +#define MXC_CCM_MPCTL (MXC_CCM_BASE + 0x10) +#define MXC_CCM_UPCTL (MXC_CCM_BASE + 0x14) +#define MXC_CCM_SRPCTL (MXC_CCM_BASE + 0x18) +#define MXC_CCM_COSR (MXC_CCM_BASE + 0x1C) +#define MXC_CCM_CGR0 (MXC_CCM_BASE + 0x20) +#define MXC_CCM_CGR1 (MXC_CCM_BASE + 0x24) +#define MXC_CCM_CGR2 (MXC_CCM_BASE + 0x28) +#define MXC_CCM_WIMR (MXC_CCM_BASE + 0x2C) +#define MXC_CCM_LDC (MXC_CCM_BASE + 0x30) +#define MXC_CCM_DCVR0 (MXC_CCM_BASE + 0x34) +#define MXC_CCM_DCVR1 (MXC_CCM_BASE + 0x38) +#define MXC_CCM_DCVR2 (MXC_CCM_BASE + 0x3C) +#define MXC_CCM_DCVR3 (MXC_CCM_BASE + 0x40) +#define MXC_CCM_LTR0 (MXC_CCM_BASE + 0x44) +#define MXC_CCM_LTR1 (MXC_CCM_BASE + 0x48) +#define MXC_CCM_LTR2 (MXC_CCM_BASE + 0x4C) +#define MXC_CCM_LTR3 (MXC_CCM_BASE + 0x50) +#define MXC_CCM_LTBR0 (MXC_CCM_BASE + 0x54) +#define MXC_CCM_LTBR1 (MXC_CCM_BASE + 0x58) +#define MXC_CCM_PMCR0 (MXC_CCM_BASE + 0x5C) +#define MXC_CCM_PMCR1 (MXC_CCM_BASE + 0x60) +#define MXC_CCM_PDR2 (MXC_CCM_BASE + 0x64) + +/* Register bit definitions */ +#define MXC_CCM_CCMR_WBEN (1 << 27) +#define MXC_CCM_CCMR_CSCS (1 << 25) +#define MXC_CCM_CCMR_PERCS (1 << 24) +#define MXC_CCM_CCMR_SSI1S_OFFSET 18 +#define MXC_CCM_CCMR_SSI1S_MASK (0x3 << 18) +#define MXC_CCM_CCMR_SSI2S_OFFSET 21 +#define MXC_CCM_CCMR_SSI2S_MASK (0x3 << 21) +#define MXC_CCM_CCMR_LPM_OFFSET 14 +#define MXC_CCM_CCMR_LPM_MASK (0x3 << 14) +#define MXC_CCM_CCMR_FIRS_OFFSET 11 +#define MXC_CCM_CCMR_FIRS_MASK (0x3 << 11) +#define MXC_CCM_CCMR_UPE (1 << 9) +#define MXC_CCM_CCMR_SPE (1 << 8) +#define MXC_CCM_CCMR_MDS (1 << 7) +#define MXC_CCM_CCMR_SBYCS (1 << 4) +#define MXC_CCM_CCMR_MPE (1 << 3) +#define MXC_CCM_CCMR_PRCS_OFFSET 1 +#define MXC_CCM_CCMR_PRCS_MASK (0x3 << 1) + +#define MXC_CCM_PDR0_CSI_PODF_OFFSET 26 +#define MXC_CCM_PDR0_CSI_PODF_MASK (0x3F << 26) +#define MXC_CCM_PDR0_CSI_PRDF_OFFSET 23 +#define MXC_CCM_PDR0_CSI_PRDF_MASK (0x7 << 23) +#define MXC_CCM_PDR0_PER_PODF_OFFSET 16 +#define MXC_CCM_PDR0_PER_PODF_MASK (0x1F << 16) +#define MXC_CCM_PDR0_HSP_PODF_OFFSET 11 +#define MXC_CCM_PDR0_HSP_PODF_MASK (0x7 << 11) +#define MXC_CCM_PDR0_NFC_PODF_OFFSET 8 +#define MXC_CCM_PDR0_NFC_PODF_MASK (0x7 << 8) +#define MXC_CCM_PDR0_IPG_PODF_OFFSET 6 +#define MXC_CCM_PDR0_IPG_PODF_MASK (0x3 << 6) +#define MXC_CCM_PDR0_MAX_PODF_OFFSET 3 +#define MXC_CCM_PDR0_MAX_PODF_MASK (0x7 << 3) +#define MXC_CCM_PDR0_MCU_PODF_OFFSET 0 +#define MXC_CCM_PDR0_MCU_PODF_MASK 0x7 + +#define MXC_CCM_PDR0_HSP_DIV_1 (0x0 << 11) +#define MXC_CCM_PDR0_HSP_DIV_2 (0x1 << 11) +#define MXC_CCM_PDR0_HSP_DIV_3 (0x2 << 11) +#define MXC_CCM_PDR0_HSP_DIV_4 (0x3 << 11) +#define MXC_CCM_PDR0_HSP_DIV_5 (0x4 << 11) +#define MXC_CCM_PDR0_HSP_DIV_6 (0x5 << 11) +#define MXC_CCM_PDR0_HSP_DIV_7 (0x6 << 11) +#define MXC_CCM_PDR0_HSP_DIV_8 (0x7 << 11) + +#define MXC_CCM_PDR0_IPG_DIV_1 (0x0 << 6) +#define MXC_CCM_PDR0_IPG_DIV_2 (0x1 << 6) +#define MXC_CCM_PDR0_IPG_DIV_3 (0x2 << 6) +#define MXC_CCM_PDR0_IPG_DIV_4 (0x3 << 6) + +#define MXC_CCM_PDR0_MAX_DIV_1 (0x0 << 3) +#define MXC_CCM_PDR0_MAX_DIV_2 (0x1 << 3) +#define MXC_CCM_PDR0_MAX_DIV_3 (0x2 << 3) +#define MXC_CCM_PDR0_MAX_DIV_4 (0x3 << 3) +#define MXC_CCM_PDR0_MAX_DIV_5 (0x4 << 3) +#define MXC_CCM_PDR0_MAX_DIV_6 (0x5 << 3) +#define MXC_CCM_PDR0_MAX_DIV_7 (0x6 << 3) +#define MXC_CCM_PDR0_MAX_DIV_8 (0x7 << 3) + +#define MXC_CCM_PDR0_NFC_DIV_1 (0x0 << 8) +#define MXC_CCM_PDR0_NFC_DIV_2 (0x1 << 8) +#define MXC_CCM_PDR0_NFC_DIV_3 (0x2 << 8) +#define MXC_CCM_PDR0_NFC_DIV_4 (0x3 << 8) +#define MXC_CCM_PDR0_NFC_DIV_5 (0x4 << 8) +#define MXC_CCM_PDR0_NFC_DIV_6 (0x5 << 8) +#define MXC_CCM_PDR0_NFC_DIV_7 (0x6 << 8) +#define MXC_CCM_PDR0_NFC_DIV_8 (0x7 << 8) + +#define MXC_CCM_PDR0_MCU_DIV_1 0x0 +#define MXC_CCM_PDR0_MCU_DIV_2 0x1 +#define MXC_CCM_PDR0_MCU_DIV_3 0x2 +#define MXC_CCM_PDR0_MCU_DIV_4 0x3 +#define MXC_CCM_PDR0_MCU_DIV_5 0x4 +#define MXC_CCM_PDR0_MCU_DIV_6 0x5 +#define MXC_CCM_PDR0_MCU_DIV_7 0x6 +#define MXC_CCM_PDR0_MCU_DIV_8 0x7 + +#define MXC_CCM_PDR1_USB_PRDF_OFFSET 30 +#define MXC_CCM_PDR1_USB_PRDF_MASK (0x3 << 30) +#define MXC_CCM_PDR1_USB_PODF_OFFSET 27 +#define MXC_CCM_PDR1_USB_PODF_MASK (0x7 << 27) +#define MXC_CCM_PDR1_FIRI_PRE_PODF_OFFSET 24 +#define MXC_CCM_PDR1_FIRI_PRE_PODF_MASK (0x7 << 24) +#define MXC_CCM_PDR1_FIRI_PODF_OFFSET 18 +#define MXC_CCM_PDR1_FIRI_PODF_MASK (0x3F << 18) +#define MXC_CCM_PDR1_SSI2_PRE_PODF_OFFSET 15 +#define MXC_CCM_PDR1_SSI2_PRE_PODF_MASK (0x7 << 15) +#define MXC_CCM_PDR1_SSI2_PODF_OFFSET 9 +#define MXC_CCM_PDR1_SSI2_PODF_MASK (0x3F << 9) +#define MXC_CCM_PDR1_SSI1_PRE_PODF_OFFSET 6 +#define MXC_CCM_PDR1_SSI1_PRE_PODF_MASK (0x7 << 6) +#define MXC_CCM_PDR1_SSI1_PODF_OFFSET 0 +#define MXC_CCM_PDR1_SSI1_PODF_MASK 0x3F + +/* Bit definitions for RCSR */ +#define MXC_CCM_RCSR_NF16B 0x80000000 + +/* Bit definitions for both MCU, USB and SR PLL control registers */ +#define MXC_CCM_PCTL_BRM 0x80000000 +#define MXC_CCM_PCTL_PD_OFFSET 26 +#define MXC_CCM_PCTL_PD_MASK (0xF << 26) +#define MXC_CCM_PCTL_MFD_OFFSET 16 +#define MXC_CCM_PCTL_MFD_MASK (0x3FF << 16) +#define MXC_CCM_PCTL_MFI_OFFSET 10 +#define MXC_CCM_PCTL_MFI_MASK (0xF << 10) +#define MXC_CCM_PCTL_MFN_OFFSET 0 +#define MXC_CCM_PCTL_MFN_MASK 0x3FF + +#define MXC_CCM_CGR0_SD_MMC1_OFFSET 0 +#define MXC_CCM_CGR0_SD_MMC1_MASK (0x3 << 0) +#define MXC_CCM_CGR0_SD_MMC2_OFFSET 2 +#define MXC_CCM_CGR0_SD_MMC2_MASK (0x3 << 2) +#define MXC_CCM_CGR0_GPT_OFFSET 4 +#define MXC_CCM_CGR0_GPT_MASK (0x3 << 4) +#define MXC_CCM_CGR0_EPIT1_OFFSET 6 +#define MXC_CCM_CGR0_EPIT1_MASK (0x3 << 6) +#define MXC_CCM_CGR0_EPIT2_OFFSET 8 +#define MXC_CCM_CGR0_EPIT2_MASK (0x3 << 8) +#define MXC_CCM_CGR0_IIM_OFFSET 10 +#define MXC_CCM_CGR0_IIM_MASK (0x3 << 10) +#define MXC_CCM_CGR0_ATA_OFFSET 12 +#define MXC_CCM_CGR0_ATA_MASK (0x3 << 12) +#define MXC_CCM_CGR0_SDMA_OFFSET 14 +#define MXC_CCM_CGR0_SDMA_MASK (0x3 << 14) +#define MXC_CCM_CGR0_CSPI3_OFFSET 16 +#define MXC_CCM_CGR0_CSPI3_MASK (0x3 << 16) +#define MXC_CCM_CGR0_RNG_OFFSET 18 +#define MXC_CCM_CGR0_RNG_MASK (0x3 << 18) +#define MXC_CCM_CGR0_UART1_OFFSET 20 +#define MXC_CCM_CGR0_UART1_MASK (0x3 << 20) +#define MXC_CCM_CGR0_UART2_OFFSET 22 +#define MXC_CCM_CGR0_UART2_MASK (0x3 << 22) +#define MXC_CCM_CGR0_SSI1_OFFSET 24 +#define MXC_CCM_CGR0_SSI1_MASK (0x3 << 24) +#define MXC_CCM_CGR0_I2C1_OFFSET 26 +#define MXC_CCM_CGR0_I2C1_MASK (0x3 << 26) +#define MXC_CCM_CGR0_I2C2_OFFSET 28 +#define MXC_CCM_CGR0_I2C2_MASK (0x3 << 28) +#define MXC_CCM_CGR0_I2C3_OFFSET 30 +#define MXC_CCM_CGR0_I2C3_MASK (0x3 << 30) + +#define MXC_CCM_CGR1_HANTRO_OFFSET 0 +#define MXC_CCM_CGR1_HANTRO_MASK (0x3 << 0) +#define MXC_CCM_CGR1_MEMSTICK1_OFFSET 2 +#define MXC_CCM_CGR1_MEMSTICK1_MASK (0x3 << 2) +#define MXC_CCM_CGR1_MEMSTICK2_OFFSET 4 +#define MXC_CCM_CGR1_MEMSTICK2_MASK (0x3 << 4) +#define MXC_CCM_CGR1_CSI_OFFSET 6 +#define MXC_CCM_CGR1_CSI_MASK (0x3 << 6) +#define MXC_CCM_CGR1_RTC_OFFSET 8 +#define MXC_CCM_CGR1_RTC_MASK (0x3 << 8) +#define MXC_CCM_CGR1_WDOG_OFFSET 10 +#define MXC_CCM_CGR1_WDOG_MASK (0x3 << 10) +#define MXC_CCM_CGR1_PWM_OFFSET 12 +#define MXC_CCM_CGR1_PWM_MASK (0x3 << 12) +#define MXC_CCM_CGR1_SIM_OFFSET 14 +#define MXC_CCM_CGR1_SIM_MASK (0x3 << 14) +#define MXC_CCM_CGR1_ECT_OFFSET 16 +#define MXC_CCM_CGR1_ECT_MASK (0x3 << 16) +#define MXC_CCM_CGR1_USBOTG_OFFSET 18 +#define MXC_CCM_CGR1_USBOTG_MASK (0x3 << 18) +#define MXC_CCM_CGR1_KPP_OFFSET 20 +#define MXC_CCM_CGR1_KPP_MASK (0x3 << 20) +#define MXC_CCM_CGR1_IPU_OFFSET 22 +#define MXC_CCM_CGR1_IPU_MASK (0x3 << 22) +#define MXC_CCM_CGR1_UART3_OFFSET 24 +#define MXC_CCM_CGR1_UART3_MASK (0x3 << 24) +#define MXC_CCM_CGR1_UART4_OFFSET 26 +#define MXC_CCM_CGR1_UART4_MASK (0x3 << 26) +#define MXC_CCM_CGR1_UART5_OFFSET 28 +#define MXC_CCM_CGR1_UART5_MASK (0x3 << 28) +#define MXC_CCM_CGR1_OWIRE_OFFSET 30 +#define MXC_CCM_CGR1_OWIRE_MASK (0x3 << 30) + +#define MXC_CCM_CGR2_SSI2_OFFSET 0 +#define MXC_CCM_CGR2_SSI2_MASK (0x3 << 0) +#define MXC_CCM_CGR2_CSPI1_OFFSET 2 +#define MXC_CCM_CGR2_CSPI1_MASK (0x3 << 2) +#define MXC_CCM_CGR2_CSPI2_OFFSET 4 +#define MXC_CCM_CGR2_CSPI2_MASK (0x3 << 4) +#define MXC_CCM_CGR2_GACC_OFFSET 6 +#define MXC_CCM_CGR2_GACC_MASK (0x3 << 6) +#define MXC_CCM_CGR2_EMI_OFFSET 8 +#define MXC_CCM_CGR2_EMI_MASK (0x3 << 8) +#define MXC_CCM_CGR2_RTIC_OFFSET 10 +#define MXC_CCM_CGR2_RTIC_MASK (0x3 << 10) +#define MXC_CCM_CGR2_FIRI_OFFSET 12 +#define MXC_CCM_CGR2_FIRI_MASK (0x3 << 12) +#define MXC_CCM_CGR2_IPMUX1_OFFSET 14 +#define MXC_CCM_CGR2_IPMUX1_MASK (0x3 << 14) +#define MXC_CCM_CGR2_IPMUX2_OFFSET 16 +#define MXC_CCM_CGR2_IPMUX2_MASK (0x3 << 16) + +/* These new CGR2 bits are added in MX32 */ +#define MXC_CCM_CGR2_APMSYSCLKSEL_OFFSET 18 +#define MXC_CCM_CGR2_APMSYSCLKSEL_MASK (0x3 << 18) +#define MXC_CCM_CGR2_APMSSICLKSEL_OFFSET 20 +#define MXC_CCM_CGR2_APMSSICLKSEL_MASK (0x3 << 20) +#define MXC_CCM_CGR2_APMPERCLKSEL_OFFSET 22 +#define MXC_CCM_CGR2_APMPERCLKSEL_MASK (0x3 << 22) +#define MXC_CCM_CGR2_MXCCLKENSEL_OFFSET 24 +#define MXC_CCM_CGR2_MXCCLKENSEL_MASK (0x1 << 24) +#define MXC_CCM_CGR2_CHIKCAMPEN_OFFSET 25 +#define MXC_CCM_CGR2_CHIKCAMPEN_MASK (0x1 << 25) +#define MXC_CCM_CGR2_OVRVPUBUSY_OFFSET 26 +#define MXC_CCM_CGR2_OVRVPUBUSY_MASK (0x1 << 26) +#define MXC_CCM_CGR2_APMENA_OFFSET 30 +#define MXC_CCM_CGR2_AOMENA_MASK (0x1 << 30) + +/* + * LTR0 register offsets + */ +#define MXC_CCM_LTR0_DIV3CK_OFFSET 1 +#define MXC_CCM_LTR0_DIV3CK_MASK (0x3 << 1) +#define MXC_CCM_LTR0_DNTHR_OFFSET 16 +#define MXC_CCM_LTR0_DNTHR_MASK (0x3F << 16) +#define MXC_CCM_LTR0_UPTHR_OFFSET 22 +#define MXC_CCM_LTR0_UPTHR_MASK (0x3F << 22) + +/* + * LTR1 register offsets + */ +#define MXC_CCM_LTR1_PNCTHR_OFFSET 0 +#define MXC_CCM_LTR1_PNCTHR_MASK 0x3F +#define MXC_CCM_LTR1_UPCNT_OFFSET 6 +#define MXC_CCM_LTR1_UPCNT_MASK (0xFF << 6) +#define MXC_CCM_LTR1_DNCNT_OFFSET 14 +#define MXC_CCM_LTR1_DNCNT_MASK (0xFF << 14) +#define MXC_CCM_LTR1_LTBRSR_MASK 0x400000 +#define MXC_CCM_LTR1_LTBRSR_OFFSET 22 +#define MXC_CCM_LTR1_LTBRSR 0x400000 +#define MXC_CCM_LTR1_LTBRSH 0x800000 + +/* + * LTR2 bit definitions. x ranges from 0 for WSW9 to 6 for WSW15 + */ +#define MXC_CCM_LTR2_WSW_OFFSET(x) (11 + (x) * 3) +#define MXC_CCM_LTR2_WSW_MASK(x) (0x7 << \ + MXC_CCM_LTR2_WSW_OFFSET((x))) +#define MXC_CCM_LTR2_EMAC_OFFSET 0 +#define MXC_CCM_LTR2_EMAC_MASK 0x1FF + +/* + * LTR3 bit definitions. x ranges from 0 for WSW0 to 8 for WSW8 + */ +#define MXC_CCM_LTR3_WSW_OFFSET(x) (5 + (x) * 3) +#define MXC_CCM_LTR3_WSW_MASK(x) (0x7 << \ + MXC_CCM_LTR3_WSW_OFFSET((x))) + +#define MXC_CCM_PMCR0_DFSUP1 0x80000000 +#define MXC_CCM_PMCR0_DFSUP1_SPLL (0 << 31) +#define MXC_CCM_PMCR0_DFSUP1_MPLL (1 << 31) +#define MXC_CCM_PMCR0_DFSUP0 0x40000000 +#define MXC_CCM_PMCR0_DFSUP0_PLL (0 << 30) +#define MXC_CCM_PMCR0_DFSUP0_PDR (1 << 30) +#define MXC_CCM_PMCR0_DFSUP_MASK (0x3 << 30) + +#define DVSUP_TURBO 0 +#define DVSUP_HIGH 1 +#define DVSUP_MEDIUM 2 +#define DVSUP_LOW 3 +#define MXC_CCM_PMCR0_DVSUP_TURBO (DVSUP_TURBO << 28) +#define MXC_CCM_PMCR0_DVSUP_HIGH (DVSUP_HIGH << 28) +#define MXC_CCM_PMCR0_DVSUP_MEDIUM (DVSUP_MEDIUM << 28) +#define MXC_CCM_PMCR0_DVSUP_LOW (DVSUP_LOW << 28) +#define MXC_CCM_PMCR0_DVSUP_OFFSET 28 +#define MXC_CCM_PMCR0_DVSUP_MASK (0x3 << 28) +#define MXC_CCM_PMCR0_UDSC 0x08000000 +#define MXC_CCM_PMCR0_UDSC_MASK (1 << 27) +#define MXC_CCM_PMCR0_UDSC_UP (1 << 27) +#define MXC_CCM_PMCR0_UDSC_DOWN (0 << 27) + +#define MXC_CCM_PMCR0_VSCNT_1 (0x0 << 24) +#define MXC_CCM_PMCR0_VSCNT_2 (0x1 << 24) +#define MXC_CCM_PMCR0_VSCNT_3 (0x2 << 24) +#define MXC_CCM_PMCR0_VSCNT_4 (0x3 << 24) +#define MXC_CCM_PMCR0_VSCNT_5 (0x4 << 24) +#define MXC_CCM_PMCR0_VSCNT_6 (0x5 << 24) +#define MXC_CCM_PMCR0_VSCNT_7 (0x6 << 24) +#define MXC_CCM_PMCR0_VSCNT_8 (0x7 << 24) +#define MXC_CCM_PMCR0_VSCNT_OFFSET 24 +#define MXC_CCM_PMCR0_VSCNT_MASK (0x7 << 24) +#define MXC_CCM_PMCR0_DVFEV 0x00800000 +#define MXC_CCM_PMCR0_DVFIS 0x00400000 +#define MXC_CCM_PMCR0_LBMI 0x00200000 +#define MXC_CCM_PMCR0_LBFL 0x00100000 +#define MXC_CCM_PMCR0_LBCF_4 (0x0 << 18) +#define MXC_CCM_PMCR0_LBCF_8 (0x1 << 18) +#define MXC_CCM_PMCR0_LBCF_12 (0x2 << 18) +#define MXC_CCM_PMCR0_LBCF_16 (0x3 << 18) +#define MXC_CCM_PMCR0_LBCF_OFFSET 18 +#define MXC_CCM_PMCR0_LBCF_MASK (0x3 << 18) +#define MXC_CCM_PMCR0_PTVIS 0x00020000 +#define MXC_CCM_PMCR0_UPDTEN 0x00010000 +#define MXC_CCM_PMCR0_UPDTEN_MASK (0x1 << 16) +#define MXC_CCM_PMCR0_FSVAIM 0x00008000 +#define MXC_CCM_PMCR0_FSVAI_OFFSET 13 +#define MXC_CCM_PMCR0_FSVAI_MASK (0x3 << 13) +#define MXC_CCM_PMCR0_DPVCR 0x00001000 +#define MXC_CCM_PMCR0_DPVV 0x00000800 +#define MXC_CCM_PMCR0_WFIM 0x00000400 +#define MXC_CCM_PMCR0_DRCE3 0x00000200 +#define MXC_CCM_PMCR0_DRCE2 0x00000100 +#define MXC_CCM_PMCR0_DRCE1 0x00000080 +#define MXC_CCM_PMCR0_DRCE0 0x00000040 +#define MXC_CCM_PMCR0_DCR 0x00000020 +#define MXC_CCM_PMCR0_DVFEN 0x00000010 +#define MXC_CCM_PMCR0_PTVAIM 0x00000008 +#define MXC_CCM_PMCR0_PTVAI_OFFSET 1 +#define MXC_CCM_PMCR0_PTVAI_MASK (0x3 << 1) +#define MXC_CCM_PMCR0_DPTEN 0x00000001 + +#define MXC_CCM_PMCR1_DVGP_OFFSET 0 +#define MXC_CCM_PMCR1_DVGP_MASK (0xF) + +#define MXC_CCM_PMCR1_PLLRDIS (0x1 << 7) +#define MXC_CCM_PMCR1_EMIRQ_EN (0x1 << 8) + +#define MXC_CCM_DCVR_ULV_MASK (0x3FF << 22) +#define MXC_CCM_DCVR_ULV_OFFSET 22 +#define MXC_CCM_DCVR_LLV_MASK (0x3FF << 12) +#define MXC_CCM_DCVR_LLV_OFFSET 12 +#define MXC_CCM_DCVR_ELV_MASK (0x3FF << 2) +#define MXC_CCM_DCVR_ELV_OFFSET 2 + +#define MXC_CCM_PDR2_MST2_PDF_MASK (0x3F << 7) +#define MXC_CCM_PDR2_MST2_PDF_OFFSET 7 +#define MXC_CCM_PDR2_MST1_PDF_MASK 0x3F +#define MXC_CCM_PDR2_MST1_PDF_OFFSET 0 + +#define MXC_CCM_COSR_CLKOSEL_MASK 0x0F +#define MXC_CCM_COSR_CLKOSEL_OFFSET 0 +#define MXC_CCM_COSR_CLKOUTDIV_MASK (0x07 << 6) +#define MXC_CCM_COSR_CLKOUTDIV_OFFSET 6 +#define MXC_CCM_COSR_CLKOEN (1 << 9) + +/* + * PMCR0 register offsets + */ +#define MXC_CCM_PMCR0_LBFL_OFFSET 20 +#define MXC_CCM_PMCR0_DFSUP0_OFFSET 30 +#define MXC_CCM_PMCR0_DFSUP1_OFFSET 31 + +#endif /* __ARCH_ARM_MACH_MX3_CRM_REGS_H__ */ diff --git a/include/asm-arm/arch-mxc/common.h b/include/asm-arm/arch-mxc/common.h index 23b4350..c6d4aa3 100644 --- a/include/asm-arm/arch-mxc/common.h +++ b/include/asm-arm/arch-mxc/common.h @@ -16,5 +16,6 @@ struct sys_timer; extern void mxc_map_io(void); extern void mxc_init_irq(void); extern struct sys_timer mxc_timer; +extern int mxc_clocks_init(unsigned long fref); #endif -- cgit v1.1