[ARM] MX27 Clock rework
This changes MX27 to use common clkdev. It also cleans up MX27 clock
support to be more readable.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/mach-mx2/clock_imx27.c b/arch/arm/mach-mx2/clock_imx27.c
index 700a22f..3f7280c 100644
--- a/arch/arm/mach-mx2/clock_imx27.c
+++ b/arch/arm/mach-mx2/clock_imx27.c
@@ -1,6 +1,7 @@
/*
* Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
* Copyright 2008 Juergen Beisert, kernel@pengutronix.de
+ * Copyright 2008 Martin Fuzzey, mfuzzey@gmail.com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -20,23 +21,60 @@
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/module.h>
-#include <linux/spinlock.h>
+
+#include <asm/clkdev.h>
+#include <asm/div64.h>
#include <mach/clock.h>
#include <mach/common.h>
-#include <asm/div64.h>
+#include <mach/hardware.h>
-#include "crm_regs.h"
+/* Register offsets */
+#define CCM_CSCR (IO_ADDRESS(CCM_BASE_ADDR) + 0x0)
+#define CCM_MPCTL0 (IO_ADDRESS(CCM_BASE_ADDR) + 0x4)
+#define CCM_MPCTL1 (IO_ADDRESS(CCM_BASE_ADDR) + 0x8)
+#define CCM_SPCTL0 (IO_ADDRESS(CCM_BASE_ADDR) + 0xC)
+#define CCM_SPCTL1 (IO_ADDRESS(CCM_BASE_ADDR) + 0x10)
+#define CCM_OSC26MCTL (IO_ADDRESS(CCM_BASE_ADDR) + 0x14)
+#define CCM_PCDR0 (IO_ADDRESS(CCM_BASE_ADDR) + 0x18)
+#define CCM_PCDR1 (IO_ADDRESS(CCM_BASE_ADDR) + 0x1c)
+#define CCM_PCCR0 (IO_ADDRESS(CCM_BASE_ADDR) + 0x20)
+#define CCM_PCCR1 (IO_ADDRESS(CCM_BASE_ADDR) + 0x24)
+#define CCM_CCSR (IO_ADDRESS(CCM_BASE_ADDR) + 0x28)
+#define CCM_PMCTL (IO_ADDRESS(CCM_BASE_ADDR) + 0x2c)
+#define CCM_PMCOUNT (IO_ADDRESS(CCM_BASE_ADDR) + 0x30)
+#define CCM_WKGDCTL (IO_ADDRESS(CCM_BASE_ADDR) + 0x34)
-static struct clk ckil_clk;
-static struct clk mpll_clk;
-static struct clk mpll_main_clk[];
-static struct clk spll_clk;
+#define CCM_CSCR_UPDATE_DIS (1 << 31)
+#define CCM_CSCR_SSI2 (1 << 23)
+#define CCM_CSCR_SSI1 (1 << 22)
+#define CCM_CSCR_VPU (1 << 21)
+#define CCM_CSCR_MSHC (1 << 20)
+#define CCM_CSCR_SPLLRES (1 << 19)
+#define CCM_CSCR_MPLLRES (1 << 18)
+#define CCM_CSCR_SP (1 << 17)
+#define CCM_CSCR_MCU (1 << 16)
+#define CCM_CSCR_OSC26MDIV (1 << 4)
+#define CCM_CSCR_OSC26M (1 << 3)
+#define CCM_CSCR_FPM (1 << 2)
+#define CCM_CSCR_SPEN (1 << 1)
+#define CCM_CSCR_MPEN (1 << 0)
-static int _clk_enable(struct clk *clk)
+/* i.MX27 TO 2+ */
+#define CCM_CSCR_ARM_SRC (1 << 15)
+
+#define CCM_SPCTL1_LF (1 << 15)
+#define CCM_SPCTL1_BRMO (1 << 6)
+
+static struct clk mpll_main1_clk, mpll_main2_clk;
+
+static int clk_pccr_enable(struct clk *clk)
{
unsigned long reg;
+ if (!clk->enable_reg)
+ return 0;
+
reg = __raw_readl(clk->enable_reg);
reg |= 1 << clk->enable_shift;
__raw_writel(reg, clk->enable_reg);
@@ -44,16 +82,19 @@
return 0;
}
-static void _clk_disable(struct clk *clk)
+static void clk_pccr_disable(struct clk *clk)
{
unsigned long reg;
+ if (!clk->enable_reg)
+ return;
+
reg = __raw_readl(clk->enable_reg);
reg &= ~(1 << clk->enable_shift);
__raw_writel(reg, clk->enable_reg);
}
-static int _clk_spll_enable(struct clk *clk)
+static int clk_spll_enable(struct clk *clk)
{
unsigned long reg;
@@ -61,13 +102,12 @@
reg |= CCM_CSCR_SPEN;
__raw_writel(reg, CCM_CSCR);
- while ((__raw_readl(CCM_SPCTL1) & CCM_SPCTL1_LF) == 0)
- ;
+ while (!(__raw_readl(CCM_SPCTL1) & CCM_SPCTL1_LF));
return 0;
}
-static void _clk_spll_disable(struct clk *clk)
+static void clk_spll_disable(struct clk *clk)
{
unsigned long reg;
@@ -76,192 +116,30 @@
__raw_writel(reg, CCM_CSCR);
}
-static void _clk_pccr01_enable(unsigned long mask0, unsigned long mask1)
+static int clk_cpu_set_parent(struct clk *clk, struct clk *parent)
{
- unsigned long reg;
-
- reg = __raw_readl(CCM_PCCR0);
- reg |= mask0;
- __raw_writel(reg, CCM_PCCR0);
-
- reg = __raw_readl(CCM_PCCR1);
- reg |= mask1;
- __raw_writel(reg, CCM_PCCR1);
-
-}
-
-static void _clk_pccr01_disable(unsigned long mask0, unsigned long mask1)
-{
- unsigned long reg;
-
- reg = __raw_readl(CCM_PCCR0);
- reg &= ~mask0;
- __raw_writel(reg, CCM_PCCR0);
-
- reg = __raw_readl(CCM_PCCR1);
- reg &= ~mask1;
- __raw_writel(reg, CCM_PCCR1);
-}
-
-static void _clk_pccr10_enable(unsigned long mask1, unsigned long mask0)
-{
- unsigned long reg;
-
- reg = __raw_readl(CCM_PCCR1);
- reg |= mask1;
- __raw_writel(reg, CCM_PCCR1);
-
- reg = __raw_readl(CCM_PCCR0);
- reg |= mask0;
- __raw_writel(reg, CCM_PCCR0);
-}
-
-static void _clk_pccr10_disable(unsigned long mask1, unsigned long mask0)
-{
- unsigned long reg;
-
- reg = __raw_readl(CCM_PCCR1);
- reg &= ~mask1;
- __raw_writel(reg, CCM_PCCR1);
-
- reg = __raw_readl(CCM_PCCR0);
- reg &= ~mask0;
- __raw_writel(reg, CCM_PCCR0);
-}
-
-static int _clk_dma_enable(struct clk *clk)
-{
- _clk_pccr01_enable(CCM_PCCR0_DMA_MASK, CCM_PCCR1_HCLK_DMA_MASK);
-
- return 0;
-}
-
-static void _clk_dma_disable(struct clk *clk)
-{
- _clk_pccr01_disable(CCM_PCCR0_DMA_MASK, CCM_PCCR1_HCLK_DMA_MASK);
-}
-
-static int _clk_rtic_enable(struct clk *clk)
-{
- _clk_pccr01_enable(CCM_PCCR0_RTIC_MASK, CCM_PCCR1_HCLK_RTIC_MASK);
-
- return 0;
-}
-
-static void _clk_rtic_disable(struct clk *clk)
-{
- _clk_pccr01_disable(CCM_PCCR0_RTIC_MASK, CCM_PCCR1_HCLK_RTIC_MASK);
-}
-
-static int _clk_emma_enable(struct clk *clk)
-{
- _clk_pccr01_enable(CCM_PCCR0_EMMA_MASK, CCM_PCCR1_HCLK_EMMA_MASK);
-
- return 0;
-}
-
-static void _clk_emma_disable(struct clk *clk)
-{
- _clk_pccr01_disable(CCM_PCCR0_EMMA_MASK, CCM_PCCR1_HCLK_EMMA_MASK);
-}
-
-static int _clk_slcdc_enable(struct clk *clk)
-{
- _clk_pccr01_enable(CCM_PCCR0_SLCDC_MASK, CCM_PCCR1_HCLK_SLCDC_MASK);
-
- return 0;
-}
-
-static void _clk_slcdc_disable(struct clk *clk)
-{
- _clk_pccr01_disable(CCM_PCCR0_SLCDC_MASK, CCM_PCCR1_HCLK_SLCDC_MASK);
-}
-
-static int _clk_fec_enable(struct clk *clk)
-{
- _clk_pccr01_enable(CCM_PCCR0_FEC_MASK, CCM_PCCR1_HCLK_FEC_MASK);
-
- return 0;
-}
-
-static void _clk_fec_disable(struct clk *clk)
-{
- _clk_pccr01_disable(CCM_PCCR0_FEC_MASK, CCM_PCCR1_HCLK_FEC_MASK);
-}
-
-static int _clk_vpu_enable(struct clk *clk)
-{
- unsigned long reg;
-
- reg = __raw_readl(CCM_PCCR1);
- reg |= CCM_PCCR1_VPU_BAUD_MASK | CCM_PCCR1_HCLK_VPU_MASK;
- __raw_writel(reg, CCM_PCCR1);
-
- return 0;
-}
-
-static void _clk_vpu_disable(struct clk *clk)
-{
- unsigned long reg;
-
- reg = __raw_readl(CCM_PCCR1);
- reg &= ~(CCM_PCCR1_VPU_BAUD_MASK | CCM_PCCR1_HCLK_VPU_MASK);
- __raw_writel(reg, CCM_PCCR1);
-}
-
-static int _clk_sahara2_enable(struct clk *clk)
-{
- _clk_pccr01_enable(CCM_PCCR0_SAHARA_MASK, CCM_PCCR1_HCLK_SAHARA_MASK);
-
- return 0;
-}
-
-static void _clk_sahara2_disable(struct clk *clk)
-{
- _clk_pccr01_disable(CCM_PCCR0_SAHARA_MASK, CCM_PCCR1_HCLK_SAHARA_MASK);
-}
-
-static int _clk_mstick1_enable(struct clk *clk)
-{
- _clk_pccr10_enable(CCM_PCCR1_MSHC_BAUD_MASK, CCM_PCCR0_MSHC_MASK);
-
- return 0;
-}
-
-static void _clk_mstick1_disable(struct clk *clk)
-{
- _clk_pccr10_disable(CCM_PCCR1_MSHC_BAUD_MASK, CCM_PCCR0_MSHC_MASK);
-}
-
-#define CSCR() (__raw_readl(CCM_CSCR))
-#define PCDR0() (__raw_readl(CCM_PCDR0))
-#define PCDR1() (__raw_readl(CCM_PCDR1))
-
-static int _clk_cpu_set_parent(struct clk *clk, struct clk *parent)
-{
- int cscr = CSCR();
+ int cscr = __raw_readl(CCM_CSCR);
if (clk->parent == parent)
return 0;
if (mx27_revision() >= CHIP_REV_2_0) {
- if (parent == &mpll_main_clk[0]) {
+ if (parent == &mpll_main1_clk) {
cscr |= CCM_CSCR_ARM_SRC;
} else {
- if (parent == &mpll_main_clk[1])
+ if (parent == &mpll_main2_clk)
cscr &= ~CCM_CSCR_ARM_SRC;
else
return -EINVAL;
}
__raw_writel(cscr, CCM_CSCR);
- } else
- return -ENODEV;
-
- clk->parent = parent;
- return 0;
+ clk->parent = parent;
+ return 0;
+ }
+ return -ENODEV;
}
-static unsigned long _clk_cpu_round_rate(struct clk *clk, unsigned long rate)
+static unsigned long round_rate_cpu(struct clk *clk, unsigned long rate)
{
int div;
unsigned long parent_rate;
@@ -278,7 +156,7 @@
return parent_rate / div;
}
-static int _clk_cpu_set_rate(struct clk *clk, unsigned long rate)
+static int set_rate_cpu(struct clk *clk, unsigned long rate)
{
unsigned int div;
uint32_t reg;
@@ -295,19 +173,18 @@
reg = __raw_readl(CCM_CSCR);
if (mx27_revision() >= CHIP_REV_2_0) {
- reg &= ~CCM_CSCR_ARM_MASK;
- reg |= div << CCM_CSCR_ARM_OFFSET;
- reg &= ~0x06;
- __raw_writel(reg | 0x80000000, CCM_CSCR);
+ reg &= ~(3 << 12);
+ reg |= div << 12;
+ reg &= ~(CCM_CSCR_FPM | CCM_CSCR_SPEN);
+ __raw_writel(reg | CCM_CSCR_UPDATE_DIS, CCM_CSCR);
} else {
- printk(KERN_ERR "Cant set CPU frequency!\n");
+ printk(KERN_ERR "Can't set CPU frequency!\n");
}
return 0;
}
-static unsigned long _clk_perclkx_round_rate(struct clk *clk,
- unsigned long rate)
+static unsigned long round_rate_per(struct clk *clk, unsigned long rate)
{
u32 div;
unsigned long parent_rate;
@@ -324,7 +201,7 @@
return parent_rate / div;
}
-static int _clk_perclkx_set_rate(struct clk *clk, unsigned long rate)
+static int set_rate_per(struct clk *clk, unsigned long rate)
{
u32 reg;
u32 div;
@@ -340,84 +217,65 @@
return -EINVAL;
div--;
- reg =
- __raw_readl(CCM_PCDR1) & ~(CCM_PCDR1_PERDIV1_MASK <<
- (clk->id << 3));
+ reg = __raw_readl(CCM_PCDR1) & ~(0x3f << (clk->id << 3));
reg |= div << (clk->id << 3);
__raw_writel(reg, CCM_PCDR1);
return 0;
}
-static unsigned long _clk_usb_recalc(struct clk *clk)
+static unsigned long get_rate_usb(struct clk *clk)
{
unsigned long usb_pdf;
unsigned long parent_rate;
parent_rate = clk_get_rate(clk->parent);
- usb_pdf = (CSCR() & CCM_CSCR_USB_MASK) >> CCM_CSCR_USB_OFFSET;
+ usb_pdf = (__raw_readl(CCM_CSCR) >> 28) & 0x7;
return parent_rate / (usb_pdf + 1U);
}
-static unsigned long _clk_ssi1_recalc(struct clk *clk)
+static unsigned long get_rate_ssix(struct clk *clk, unsigned long pdf)
{
- unsigned long ssi1_pdf;
unsigned long parent_rate;
parent_rate = clk_get_rate(clk->parent);
- ssi1_pdf = (PCDR0() & CCM_PCDR0_SSI1BAUDDIV_MASK) >>
- CCM_PCDR0_SSI1BAUDDIV_OFFSET;
-
if (mx27_revision() >= CHIP_REV_2_0)
- ssi1_pdf += 4;
+ pdf += 4; /* MX27 TO2+ */
else
- ssi1_pdf = (ssi1_pdf < 2) ? 124UL : ssi1_pdf;
+ pdf = (pdf < 2) ? 124UL : pdf; /* MX21 & MX27 TO1 */
- return 2UL * parent_rate / ssi1_pdf;
+ return 2UL * parent_rate / pdf;
}
-static unsigned long _clk_ssi2_recalc(struct clk *clk)
+static unsigned long get_rate_ssi1(struct clk *clk)
{
- unsigned long ssi2_pdf;
- unsigned long parent_rate;
-
- parent_rate = clk_get_rate(clk->parent);
-
- ssi2_pdf = (PCDR0() & CCM_PCDR0_SSI2BAUDDIV_MASK) >>
- CCM_PCDR0_SSI2BAUDDIV_OFFSET;
-
- if (mx27_revision() >= CHIP_REV_2_0)
- ssi2_pdf += 4;
- else
- ssi2_pdf = (ssi2_pdf < 2) ? 124UL : ssi2_pdf;
-
- return 2UL * parent_rate / ssi2_pdf;
+ return get_rate_ssix(clk, (__raw_readl(CCM_PCDR0) >> 16) & 0x3f);
}
-static unsigned long _clk_nfc_recalc(struct clk *clk)
+static unsigned long get_rate_ssi2(struct clk *clk)
+{
+ return get_rate_ssix(clk, (__raw_readl(CCM_PCDR0) >> 26) & 0x3f);
+}
+
+static unsigned long get_rate_nfc(struct clk *clk)
{
unsigned long nfc_pdf;
unsigned long parent_rate;
parent_rate = clk_get_rate(clk->parent);
- if (mx27_revision() >= CHIP_REV_2_0) {
- nfc_pdf =
- (PCDR0() & CCM_PCDR0_NFCDIV2_MASK) >>
- CCM_PCDR0_NFCDIV2_OFFSET;
- } else {
- nfc_pdf =
- (PCDR0() & CCM_PCDR0_NFCDIV_MASK) >>
- CCM_PCDR0_NFCDIV_OFFSET;
- }
+ if (mx27_revision() >= CHIP_REV_2_0)
+ nfc_pdf = (__raw_readl(CCM_PCDR0) >> 6) & 0xf;
+ else
+ nfc_pdf = (__raw_readl(CCM_PCDR0) >> 12) & 0xf;
return parent_rate / (nfc_pdf + 1);
}
-static unsigned long _clk_vpu_recalc(struct clk *clk)
+static unsigned long get_rate_vpu(struct clk *clk)
{
unsigned long vpu_pdf;
unsigned long parent_rate;
@@ -425,25 +283,27 @@
parent_rate = clk_get_rate(clk->parent);
if (mx27_revision() >= CHIP_REV_2_0) {
- vpu_pdf =
- (PCDR0() & CCM_PCDR0_VPUDIV2_MASK) >>
- CCM_PCDR0_VPUDIV2_OFFSET;
+ vpu_pdf = (__raw_readl(CCM_PCDR0) >> 10) & 0x3f;
vpu_pdf += 4;
} else {
- vpu_pdf =
- (PCDR0() & CCM_PCDR0_VPUDIV_MASK) >>
- CCM_PCDR0_VPUDIV_OFFSET;
+ vpu_pdf = (__raw_readl(CCM_PCDR0) >> 8) & 0xf;
vpu_pdf = (vpu_pdf < 2) ? 124 : vpu_pdf;
}
+
return 2UL * parent_rate / vpu_pdf;
}
-static unsigned long _clk_parent_round_rate(struct clk *clk, unsigned long rate)
+static unsigned long round_rate_parent(struct clk *clk, unsigned long rate)
{
return clk->parent->round_rate(clk->parent, rate);
}
-static int _clk_parent_set_rate(struct clk *clk, unsigned long rate)
+static unsigned long get_rate_parent(struct clk *clk)
+{
+ return clk_get_rate(clk->parent);
+}
+
+static int set_rate_parent(struct clk *clk, unsigned long rate)
{
return clk->parent->set_rate(clk->parent, rate);
}
@@ -451,94 +311,52 @@
/* in Hz */
static unsigned long external_high_reference = 26000000;
-static unsigned long get_high_reference_clock_rate(struct clk *clk)
+static unsigned long get_rate_high_reference(struct clk *clk)
{
return external_high_reference;
}
-/*
- * the high frequency external clock reference
- * Default case is 26MHz. Could be changed at runtime
- * with a call to change_external_high_reference()
- */
-static struct clk ckih_clk = {
- .name = "ckih",
- .get_rate = get_high_reference_clock_rate,
-};
-
/* in Hz */
static unsigned long external_low_reference = 32768;
-static unsigned long get_low_reference_clock_rate(struct clk *clk)
+static unsigned long get_rate_low_reference(struct clk *clk)
{
return external_low_reference;
}
-/*
- * the low frequency external clock reference
- * Default case is 32.768kHz Could be changed at runtime
- * with a call to change_external_low_reference()
- */
-static struct clk ckil_clk = {
- .name = "ckil",
- .get_rate = get_low_reference_clock_rate,
-};
+static unsigned long get_rate_fpm(struct clk *clk)
+{
+ return clk_get_rate(clk->parent) * 1024;
+}
-static unsigned long get_mpll_clk(struct clk *clk)
+static unsigned long get_rate_mpll(struct clk *clk)
{
return mxc_decode_pll(__raw_readl(CCM_MPCTL0),
clk_get_rate(clk->parent));
}
-static struct clk mpll_clk = {
- .name = "mpll",
- .parent = &ckih_clk,
- .get_rate = get_mpll_clk,
-};
-
-static unsigned long _clk_mpll_main_get_rate(struct clk *clk)
+static unsigned long get_rate_mpll_main(struct clk *clk)
{
unsigned long parent_rate;
parent_rate = clk_get_rate(clk->parent);
/* i.MX27 TO2:
- * clk->id == 0: arm clock source path 1 which is from 2*MPLL/DIV_2
- * clk->id == 1: arm clock source path 2 which is from 2*MPLL/DIV_3
+ * clk->id == 0: arm clock source path 1 which is from 2 * MPLL / 2
+ * clk->id == 1: arm clock source path 2 which is from 2 * MPLL / 3
*/
-
if (mx27_revision() >= CHIP_REV_2_0 && clk->id == 1)
return 2UL * parent_rate / 3UL;
return parent_rate;
}
-static struct clk mpll_main_clk[] = {
- {
- /* For i.MX27 TO2, it is the MPLL path 1 of ARM core
- * It provide the clock source whose rate is same as MPLL
- */
- .name = "mpll_main",
- .id = 0,
- .parent = &mpll_clk,
- .get_rate = _clk_mpll_main_get_rate
- }, {
- /* For i.MX27 TO2, it is the MPLL path 2 of ARM core
- * It provide the clock source whose rate is same MPLL * 2/3
- */
- .name = "mpll_main",
- .id = 1,
- .parent = &mpll_clk,
- .get_rate = _clk_mpll_main_get_rate
- }
-};
-
-static unsigned long get_spll_clk(struct clk *clk)
+static unsigned long get_rate_spll(struct clk *clk)
{
uint32_t reg;
- unsigned long ref_clk;
+ unsigned long rate;
- ref_clk = clk_get_rate(clk->parent);
+ rate = clk_get_rate(clk->parent);
reg = __raw_readl(CCM_SPCTL0);
@@ -548,987 +366,325 @@
if (mx27_revision() >= CHIP_REV_2_0)
__raw_writel(reg, CCM_SPCTL0);
- return mxc_decode_pll(reg, ref_clk);
+ return mxc_decode_pll(reg, rate);
}
-static struct clk spll_clk = {
- .name = "spll",
- .parent = &ckih_clk,
- .get_rate = get_spll_clk,
- .enable = _clk_spll_enable,
- .disable = _clk_spll_disable,
-};
-
-static unsigned long get_cpu_clk(struct clk *clk)
+static unsigned long get_rate_cpu(struct clk *clk)
{
u32 div;
unsigned long rate;
if (mx27_revision() >= CHIP_REV_2_0)
- div = (CSCR() & CCM_CSCR_ARM_MASK) >> CCM_CSCR_ARM_OFFSET;
+ div = (__raw_readl(CCM_CSCR) >> 12) & 0x3;
else
- div = (CSCR() & CCM_CSCR_PRESC_MASK) >> CCM_CSCR_PRESC_OFFSET;
+ div = (__raw_readl(CCM_CSCR) >> 13) & 0x7;
rate = clk_get_rate(clk->parent);
return rate / (div + 1);
}
-static struct clk cpu_clk = {
- .name = "cpu_clk",
- .parent = &mpll_main_clk[1],
- .set_parent = _clk_cpu_set_parent,
- .round_rate = _clk_cpu_round_rate,
- .get_rate = get_cpu_clk,
- .set_rate = _clk_cpu_set_rate,
-};
-
-static unsigned long get_ahb_clk(struct clk *clk)
+static unsigned long get_rate_ahb(struct clk *clk)
{
- unsigned long rate;
- unsigned long bclk_pdf;
+ unsigned long rate, bclk_pdf;
if (mx27_revision() >= CHIP_REV_2_0)
- bclk_pdf = (CSCR() & CCM_CSCR_AHB_MASK)
- >> CCM_CSCR_AHB_OFFSET;
+ bclk_pdf = (__raw_readl(CCM_CSCR) >> 8) & 0x3;
else
- bclk_pdf = (CSCR() & CCM_CSCR_BCLK_MASK)
- >> CCM_CSCR_BCLK_OFFSET;
+ bclk_pdf = (__raw_readl(CCM_CSCR) >> 9) & 0xf;
rate = clk_get_rate(clk->parent);
return rate / (bclk_pdf + 1);
}
-static struct clk ahb_clk = {
- .name = "ahb_clk",
- .parent = &mpll_main_clk[1],
- .get_rate = get_ahb_clk,
-};
-
-static unsigned long get_ipg_clk(struct clk *clk)
+static unsigned long get_rate_ipg(struct clk *clk)
{
- unsigned long rate;
- unsigned long ipg_pdf;
+ unsigned long rate, ipg_pdf;
if (mx27_revision() >= CHIP_REV_2_0)
return clk_get_rate(clk->parent);
else
- ipg_pdf = (CSCR() & CCM_CSCR_IPDIV) >> CCM_CSCR_IPDIV_OFFSET;
+ ipg_pdf = (__raw_readl(CCM_CSCR) >> 8) & 1;
rate = clk_get_rate(clk->parent);
return rate / (ipg_pdf + 1);
}
-static struct clk ipg_clk = {
- .name = "ipg_clk",
- .parent = &ahb_clk,
- .get_rate = get_ipg_clk,
-};
-
-static unsigned long _clk_perclkx_recalc(struct clk *clk)
+static unsigned long get_rate_per(struct clk *clk)
{
- unsigned long perclk_pdf;
- unsigned long parent_rate;
+ unsigned long perclk_pdf, parent_rate;
parent_rate = clk_get_rate(clk->parent);
if (clk->id < 0 || clk->id > 3)
return 0;
- perclk_pdf = (PCDR1() >> (clk->id << 3)) & CCM_PCDR1_PERDIV1_MASK;
+ perclk_pdf = (__raw_readl(CCM_PCDR1) >> (clk->id << 3)) & 0x3f;
return parent_rate / (perclk_pdf + 1);
}
-static struct clk per_clk[] = {
- {
- .name = "per_clk",
- .id = 0,
- .parent = &mpll_main_clk[1],
- .get_rate = _clk_perclkx_recalc,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_PERCLK1_OFFSET,
- .disable = _clk_disable,
- }, {
- .name = "per_clk",
- .id = 1,
- .parent = &mpll_main_clk[1],
- .get_rate = _clk_perclkx_recalc,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_PERCLK2_OFFSET,
- .disable = _clk_disable,
- }, {
- .name = "per_clk",
- .id = 2,
- .parent = &mpll_main_clk[1],
- .round_rate = _clk_perclkx_round_rate,
- .set_rate = _clk_perclkx_set_rate,
- .get_rate = _clk_perclkx_recalc,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_PERCLK3_OFFSET,
- .disable = _clk_disable,
- }, {
- .name = "per_clk",
- .id = 3,
- .parent = &mpll_main_clk[1],
- .round_rate = _clk_perclkx_round_rate,
- .set_rate = _clk_perclkx_set_rate,
- .get_rate = _clk_perclkx_recalc,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_PERCLK4_OFFSET,
- .disable = _clk_disable,
- },
+/*
+ * the high frequency external clock reference
+ * Default case is 26MHz. Could be changed at runtime
+ * with a call to change_external_high_reference()
+ */
+static struct clk ckih_clk = {
+ .get_rate = get_rate_high_reference,
};
-struct clk uart1_clk[] = {
- {
- .name = "uart",
- .id = 0,
- .parent = &per_clk[0],
- .secondary = &uart1_clk[1],
- }, {
- .name = "uart_ipg_clk",
- .id = 0,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_UART1_OFFSET,
- .disable = _clk_disable,
- },
+static struct clk mpll_clk = {
+ .parent = &ckih_clk,
+ .get_rate = get_rate_mpll,
};
-struct clk uart2_clk[] = {
- {
- .name = "uart",
- .id = 1,
- .parent = &per_clk[0],
- .secondary = &uart2_clk[1],
- }, {
- .name = "uart_ipg_clk",
- .id = 1,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_UART2_OFFSET,
- .disable = _clk_disable,
- },
+/* For i.MX27 TO2, it is the MPLL path 1 of ARM core
+ * It provides the clock source whose rate is same as MPLL
+ */
+static struct clk mpll_main1_clk = {
+ .id = 0,
+ .parent = &mpll_clk,
+ .get_rate = get_rate_mpll_main,
};
-struct clk uart3_clk[] = {
- {
- .name = "uart",
- .id = 2,
- .parent = &per_clk[0],
- .secondary = &uart3_clk[1],
- }, {
- .name = "uart_ipg_clk",
- .id = 2,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_UART3_OFFSET,
- .disable = _clk_disable,
- },
+/* For i.MX27 TO2, it is the MPLL path 2 of ARM core
+ * It provides the clock source whose rate is same MPLL * 2 / 3
+ */
+static struct clk mpll_main2_clk = {
+ .id = 1,
+ .parent = &mpll_clk,
+ .get_rate = get_rate_mpll_main,
};
-struct clk uart4_clk[] = {
- {
- .name = "uart",
- .id = 3,
- .parent = &per_clk[0],
- .secondary = &uart4_clk[1],
- }, {
- .name = "uart_ipg_clk",
- .id = 3,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_UART4_OFFSET,
- .disable = _clk_disable,
- },
+static struct clk ahb_clk = {
+ .parent = &mpll_main2_clk,
+ .get_rate = get_rate_ahb,
};
-struct clk uart5_clk[] = {
- {
- .name = "uart",
- .id = 4,
- .parent = &per_clk[0],
- .secondary = &uart5_clk[1],
- }, {
- .name = "uart_ipg_clk",
- .id = 4,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_UART5_OFFSET,
- .disable = _clk_disable,
- },
+static struct clk ipg_clk = {
+ .parent = &ahb_clk,
+ .get_rate = get_rate_ipg,
};
-struct clk uart6_clk[] = {
- {
- .name = "uart",
- .id = 5,
- .parent = &per_clk[0],
- .secondary = &uart6_clk[1],
- }, {
- .name = "uart_ipg_clk",
- .id = 5,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_UART6_OFFSET,
- .disable = _clk_disable,
- },
+static struct clk cpu_clk = {
+ .parent = &mpll_main2_clk,
+ .set_parent = clk_cpu_set_parent,
+ .round_rate = round_rate_cpu,
+ .get_rate = get_rate_cpu,
+ .set_rate = set_rate_cpu,
};
-static struct clk gpt1_clk[] = {
- {
- .name = "gpt_clk",
- .id = 0,
- .parent = &per_clk[0],
- .secondary = &gpt1_clk[1],
- }, {
- .name = "gpt_ipg_clk",
- .id = 0,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_GPT1_OFFSET,
- .disable = _clk_disable,
- },
+static struct clk spll_clk = {
+ .parent = &ckih_clk,
+ .get_rate = get_rate_spll,
+ .enable = clk_spll_enable,
+ .disable = clk_spll_disable,
};
-static struct clk gpt2_clk[] = {
- {
- .name = "gpt_clk",
- .id = 1,
- .parent = &per_clk[0],
- .secondary = &gpt2_clk[1],
- }, {
- .name = "gpt_ipg_clk",
- .id = 1,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_GPT2_OFFSET,
- .disable = _clk_disable,
- },
+/*
+ * the low frequency external clock reference
+ * Default case is 32.768kHz.
+ */
+static struct clk ckil_clk = {
+ .get_rate = get_rate_low_reference,
};
-static struct clk gpt3_clk[] = {
- {
- .name = "gpt_clk",
- .id = 2,
- .parent = &per_clk[0],
- .secondary = &gpt3_clk[1],
- }, {
- .name = "gpt_ipg_clk",
- .id = 2,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_GPT3_OFFSET,
- .disable = _clk_disable,
- },
+/* Output of frequency pre multiplier */
+static struct clk fpm_clk = {
+ .parent = &ckil_clk,
+ .get_rate = get_rate_fpm,
};
-static struct clk gpt4_clk[] = {
- {
- .name = "gpt_clk",
- .id = 3,
- .parent = &per_clk[0],
- .secondary = &gpt4_clk[1],
- }, {
- .name = "gpt_ipg_clk",
- .id = 3,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_GPT4_OFFSET,
- .disable = _clk_disable,
- },
-};
+#define PCCR0 CCM_PCCR0
+#define PCCR1 CCM_PCCR1
-static struct clk gpt5_clk[] = {
- {
- .name = "gpt_clk",
- .id = 4,
- .parent = &per_clk[0],
- .secondary = &gpt5_clk[1],
- }, {
- .name = "gpt_ipg_clk",
- .id = 4,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_GPT5_OFFSET,
- .disable = _clk_disable,
- },
-};
-
-static struct clk gpt6_clk[] = {
- {
- .name = "gpt_clk",
- .id = 5,
- .parent = &per_clk[0],
- .secondary = &gpt6_clk[1],
- }, {
- .name = "gpt_ipg_clk",
- .id = 5,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_GPT6_OFFSET,
- .disable = _clk_disable,
- },
-};
-
-static struct clk pwm_clk[] = {
- {
- .name = "pwm_clk",
- .parent = &per_clk[0],
- .secondary = &pwm_clk[1],
- }, {
- .name = "pwm_clk",
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_PWM_OFFSET,
- .disable = _clk_disable,
- },
-};
-
-static struct clk sdhc1_clk[] = {
- {
- .name = "sdhc_clk",
- .id = 0,
- .parent = &per_clk[1],
- .secondary = &sdhc1_clk[1],
- }, {
- .name = "sdhc_ipg_clk",
- .id = 0,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_SDHC1_OFFSET,
- .disable = _clk_disable,
- },
-};
-
-static struct clk sdhc2_clk[] = {
- {
- .name = "sdhc_clk",
- .id = 1,
- .parent = &per_clk[1],
- .secondary = &sdhc2_clk[1],
- }, {
- .name = "sdhc_ipg_clk",
- .id = 1,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_SDHC2_OFFSET,
- .disable = _clk_disable,
- },
-};
-
-static struct clk sdhc3_clk[] = {
- {
- .name = "sdhc_clk",
- .id = 2,
- .parent = &per_clk[1],
- .secondary = &sdhc3_clk[1],
- }, {
- .name = "sdhc_ipg_clk",
- .id = 2,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_SDHC3_OFFSET,
- .disable = _clk_disable,
- },
-};
-
-static struct clk cspi1_clk[] = {
- {
- .name = "cspi_clk",
- .id = 0,
- .parent = &per_clk[1],
- .secondary = &cspi1_clk[1],
- }, {
- .name = "cspi_ipg_clk",
- .id = 0,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_CSPI1_OFFSET,
- .disable = _clk_disable,
- },
-};
-
-static struct clk cspi2_clk[] = {
- {
- .name = "cspi_clk",
- .id = 1,
- .parent = &per_clk[1],
- .secondary = &cspi2_clk[1],
- }, {
- .name = "cspi_ipg_clk",
- .id = 1,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_CSPI2_OFFSET,
- .disable = _clk_disable,
- },
-};
-
-static struct clk cspi3_clk[] = {
- {
- .name = "cspi_clk",
- .id = 2,
- .parent = &per_clk[1],
- .secondary = &cspi3_clk[1],
- }, {
- .name = "cspi_ipg_clk",
- .id = 2,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_CSPI3_OFFSET,
- .disable = _clk_disable,
- },
-};
-
-static struct clk lcdc_clk[] = {
- {
- .name = "lcdc_clk",
- .parent = &per_clk[2],
- .secondary = &lcdc_clk[1],
- .round_rate = _clk_parent_round_rate,
- .set_rate = _clk_parent_set_rate,
- }, {
- .name = "lcdc_ipg_clk",
- .parent = &ipg_clk,
- .secondary = &lcdc_clk[2],
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_LCDC_OFFSET,
- .disable = _clk_disable,
- }, {
- .name = "lcdc_ahb_clk",
- .parent = &ahb_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_HCLK_LCDC_OFFSET,
- .disable = _clk_disable,
- },
-};
-
-static struct clk csi_clk[] = {
- {
- .name = "csi_perclk",
- .parent = &per_clk[3],
- .secondary = &csi_clk[1],
- .round_rate = _clk_parent_round_rate,
- .set_rate = _clk_parent_set_rate,
- }, {
- .name = "csi_ahb_clk",
- .parent = &ahb_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_HCLK_CSI_OFFSET,
- .disable = _clk_disable,
- },
-};
-
-static struct clk usb_clk[] = {
- {
- .name = "usb_clk",
- .parent = &spll_clk,
- .get_rate = _clk_usb_recalc,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_USBOTG_OFFSET,
- .disable = _clk_disable,
- }, {
- .name = "usb_ahb_clk",
- .parent = &ahb_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_HCLK_USBOTG_OFFSET,
- .disable = _clk_disable,
+#define DEFINE_CLOCK(name, i, er, es, gr, s, p) \
+ static struct clk name = { \
+ .id = i, \
+ .enable_reg = er, \
+ .enable_shift = es, \
+ .get_rate = gr, \
+ .enable = clk_pccr_enable, \
+ .disable = clk_pccr_disable, \
+ .secondary = s, \
+ .parent = p, \
}
-};
-static struct clk ssi1_clk[] = {
- {
- .name = "ssi_clk",
- .id = 0,
- .parent = &mpll_main_clk[1],
- .secondary = &ssi1_clk[1],
- .get_rate = _clk_ssi1_recalc,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_SSI1_BAUD_OFFSET,
- .disable = _clk_disable,
- }, {
- .name = "ssi_ipg_clk",
- .id = 0,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_SSI1_IPG_OFFSET,
- .disable = _clk_disable,
+#define DEFINE_CLOCK1(name, i, er, es, getsetround, s, p) \
+ static struct clk name = { \
+ .id = i, \
+ .enable_reg = er, \
+ .enable_shift = es, \
+ .get_rate = get_rate_##getsetround, \
+ .set_rate = set_rate_##getsetround, \
+ .round_rate = round_rate_##getsetround, \
+ .enable = clk_pccr_enable, \
+ .disable = clk_pccr_disable, \
+ .secondary = s, \
+ .parent = p, \
+ }
+
+/* Forward declaration to keep the following list in order */
+static struct clk slcdc_clk1, sahara2_clk1, rtic_clk1, fec_clk1, emma_clk1,
+ dma_clk1, lcdc_clk2, vpu_clk1;
+
+/* All clocks we can gate through PCCRx in the order of PCCRx bits */
+DEFINE_CLOCK(ssi2_clk1, 1, PCCR0, 0, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(ssi1_clk1, 0, PCCR0, 1, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(slcdc_clk, 0, PCCR0, 2, NULL, &slcdc_clk1, &ahb_clk);
+DEFINE_CLOCK(sdhc3_clk1, 0, PCCR0, 3, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(sdhc2_clk1, 0, PCCR0, 4, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(sdhc1_clk1, 0, PCCR0, 5, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(scc_clk, 0, PCCR0, 6, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(sahara2_clk, 0, PCCR0, 7, NULL, &sahara2_clk1, &ahb_clk);
+DEFINE_CLOCK(rtic_clk, 0, PCCR0, 8, NULL, &rtic_clk1, &ahb_clk);
+DEFINE_CLOCK(rtc_clk, 0, PCCR0, 9, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(pwm_clk1, 0, PCCR0, 11, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(owire_clk, 0, PCCR0, 12, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(mstick_clk1, 0, PCCR0, 13, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(lcdc_clk1, 0, PCCR0, 14, NULL, &lcdc_clk2, &ipg_clk);
+DEFINE_CLOCK(kpp_clk, 0, PCCR0, 15, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(iim_clk, 0, PCCR0, 16, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(i2c2_clk, 1, PCCR0, 17, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(i2c1_clk, 0, PCCR0, 18, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(gpt6_clk1, 0, PCCR0, 29, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(gpt5_clk1, 0, PCCR0, 20, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(gpt4_clk1, 0, PCCR0, 21, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(gpt3_clk1, 0, PCCR0, 22, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(gpt2_clk1, 0, PCCR0, 23, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(gpt1_clk1, 0, PCCR0, 24, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(gpio_clk, 0, PCCR0, 25, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(fec_clk, 0, PCCR0, 26, NULL, &fec_clk1, &ahb_clk);
+DEFINE_CLOCK(emma_clk, 0, PCCR0, 27, NULL, &emma_clk1, &ahb_clk);
+DEFINE_CLOCK(dma_clk, 0, PCCR0, 28, NULL, &dma_clk1, &ahb_clk);
+DEFINE_CLOCK(cspi13_clk1, 0, PCCR0, 29, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(cspi2_clk1, 0, PCCR0, 30, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(cspi1_clk1, 0, PCCR0, 31, NULL, NULL, &ipg_clk);
+
+DEFINE_CLOCK(mstick_clk, 0, PCCR1, 2, NULL, &mstick_clk1, &ipg_clk);
+DEFINE_CLOCK(nfc_clk, 0, PCCR1, 3, get_rate_nfc, NULL, &cpu_clk);
+DEFINE_CLOCK(ssi2_clk, 1, PCCR1, 4, get_rate_ssi2, &ssi2_clk1, &mpll_main2_clk);
+DEFINE_CLOCK(ssi1_clk, 0, PCCR1, 5, get_rate_ssi1, &ssi1_clk1, &mpll_main2_clk);
+DEFINE_CLOCK(vpu_clk, 0, PCCR1, 6, get_rate_vpu, &vpu_clk1, &mpll_main2_clk);
+DEFINE_CLOCK1(per4_clk, 3, PCCR1, 7, per, NULL, &mpll_main2_clk);
+DEFINE_CLOCK1(per3_clk, 2, PCCR1, 8, per, NULL, &mpll_main2_clk);
+DEFINE_CLOCK1(per2_clk, 1, PCCR1, 9, per, NULL, &mpll_main2_clk);
+DEFINE_CLOCK1(per1_clk, 0, PCCR1, 10, per, NULL, &mpll_main2_clk);
+DEFINE_CLOCK(usb_clk1, 0, PCCR1, 11, NULL, NULL, &ahb_clk);
+DEFINE_CLOCK(slcdc_clk1, 0, PCCR1, 12, NULL, NULL, &ahb_clk);
+DEFINE_CLOCK(sahara2_clk1, 0, PCCR1, 13, NULL, NULL, &ahb_clk);
+DEFINE_CLOCK(rtic_clk1, 0, PCCR1, 14, NULL, NULL, &ahb_clk);
+DEFINE_CLOCK(lcdc_clk2, 0, PCCR1, 15, NULL, NULL, &ahb_clk);
+DEFINE_CLOCK(vpu_clk1, 0, PCCR1, 16, NULL, NULL, &ahb_clk);
+DEFINE_CLOCK(fec_clk1, 0, PCCR1, 17, NULL, NULL, &ahb_clk);
+DEFINE_CLOCK(emma_clk1, 0, PCCR1, 18, NULL, NULL, &ahb_clk);
+DEFINE_CLOCK(emi_clk, 0, PCCR1, 19, NULL, NULL, &ahb_clk);
+DEFINE_CLOCK(dma_clk1, 0, PCCR1, 20, NULL, NULL, &ahb_clk);
+DEFINE_CLOCK(csi_clk1, 0, PCCR1, 21, NULL, NULL, &ahb_clk);
+DEFINE_CLOCK(brom_clk, 0, PCCR1, 22, NULL, NULL, &ahb_clk);
+DEFINE_CLOCK(ata_clk, 0, PCCR1, 23, NULL, NULL, &ahb_clk);
+DEFINE_CLOCK(wdog_clk, 0, PCCR1, 24, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(usb_clk, 0, PCCR1, 25, get_rate_usb, &usb_clk1, &spll_clk);
+DEFINE_CLOCK(uart6_clk1, 0, PCCR1, 26, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(uart5_clk1, 0, PCCR1, 27, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(uart4_clk1, 0, PCCR1, 28, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(uart3_clk1, 0, PCCR1, 29, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(uart2_clk1, 0, PCCR1, 30, NULL, NULL, &ipg_clk);
+DEFINE_CLOCK(uart1_clk1, 0, PCCR1, 31, NULL, NULL, &ipg_clk);
+
+/* Clocks we cannot directly gate, but drivers need their rates */
+DEFINE_CLOCK(cspi1_clk, 0, 0, 0, NULL, &cspi1_clk1, &per2_clk);
+DEFINE_CLOCK(cspi2_clk, 1, 0, 0, NULL, &cspi2_clk1, &per2_clk);
+DEFINE_CLOCK(cspi3_clk, 2, 0, 0, NULL, &cspi13_clk1, &per2_clk);
+DEFINE_CLOCK(sdhc1_clk, 0, 0, 0, NULL, &sdhc1_clk1, &per2_clk);
+DEFINE_CLOCK(sdhc2_clk, 1, 0, 0, NULL, &sdhc2_clk1, &per2_clk);
+DEFINE_CLOCK(sdhc3_clk, 2, 0, 0, NULL, &sdhc3_clk1, &per2_clk);
+DEFINE_CLOCK(pwm_clk, 0, 0, 0, NULL, &pwm_clk1, &per1_clk);
+DEFINE_CLOCK(gpt1_clk, 0, 0, 0, NULL, &gpt1_clk1, &per1_clk);
+DEFINE_CLOCK(gpt2_clk, 1, 0, 0, NULL, &gpt2_clk1, &per1_clk);
+DEFINE_CLOCK(gpt3_clk, 2, 0, 0, NULL, &gpt3_clk1, &per1_clk);
+DEFINE_CLOCK(gpt4_clk, 3, 0, 0, NULL, &gpt4_clk1, &per1_clk);
+DEFINE_CLOCK(gpt5_clk, 4, 0, 0, NULL, &gpt5_clk1, &per1_clk);
+DEFINE_CLOCK(gpt6_clk, 5, 0, 0, NULL, &gpt6_clk1, &per1_clk);
+DEFINE_CLOCK(uart1_clk, 0, 0, 0, NULL, &uart1_clk1, &per1_clk);
+DEFINE_CLOCK(uart2_clk, 1, 0, 0, NULL, &uart2_clk1, &per1_clk);
+DEFINE_CLOCK(uart3_clk, 2, 0, 0, NULL, &uart3_clk1, &per1_clk);
+DEFINE_CLOCK(uart4_clk, 3, 0, 0, NULL, &uart4_clk1, &per1_clk);
+DEFINE_CLOCK(uart5_clk, 4, 0, 0, NULL, &uart5_clk1, &per1_clk);
+DEFINE_CLOCK(uart6_clk, 5, 0, 0, NULL, &uart6_clk1, &per1_clk);
+DEFINE_CLOCK1(lcdc_clk, 0, 0, 0, parent, &lcdc_clk1, &per3_clk);
+DEFINE_CLOCK1(csi_clk, 0, 0, 0, parent, &csi_clk1, &per4_clk);
+
+#define _REGISTER_CLOCK(d, n, c) \
+ { \
+ .dev_id = d, \
+ .con_id = n, \
+ .clk = &c, \
},
+
+static struct clk_lookup lookups[] __initdata = {
+ _REGISTER_CLOCK("imx-uart.0", NULL, uart1_clk)
+ _REGISTER_CLOCK("imx-uart.1", NULL, uart2_clk)
+ _REGISTER_CLOCK("imx-uart.2", NULL, uart3_clk)
+ _REGISTER_CLOCK("imx-uart.3", NULL, uart4_clk)
+ _REGISTER_CLOCK("imx-uart.4", NULL, uart5_clk)
+ _REGISTER_CLOCK("imx-uart.5", NULL, uart6_clk)
+ _REGISTER_CLOCK(NULL, "gpt1", gpt1_clk)
+ _REGISTER_CLOCK(NULL, "gpt2", gpt2_clk)
+ _REGISTER_CLOCK(NULL, "gpt3", gpt3_clk)
+ _REGISTER_CLOCK(NULL, "gpt4", gpt4_clk)
+ _REGISTER_CLOCK(NULL, "gpt5", gpt5_clk)
+ _REGISTER_CLOCK(NULL, "gpt6", gpt6_clk)
+ _REGISTER_CLOCK("mxc_pwm.0", NULL, pwm_clk)
+ _REGISTER_CLOCK("mxc-mmc.0", NULL, sdhc1_clk)
+ _REGISTER_CLOCK("mxc-mmc.1", NULL, sdhc2_clk)
+ _REGISTER_CLOCK("mxc-mmc.2", NULL, sdhc3_clk)
+ _REGISTER_CLOCK(NULL, "cspi1", cspi1_clk)
+ _REGISTER_CLOCK(NULL, "cspi2", cspi2_clk)
+ _REGISTER_CLOCK(NULL, "cspi3", cspi3_clk)
+ _REGISTER_CLOCK("imx-fb.0", NULL, lcdc_clk)
+ _REGISTER_CLOCK(NULL, "csi", csi_clk)
+ _REGISTER_CLOCK(NULL, "usb", usb_clk)
+ _REGISTER_CLOCK(NULL, "ssi1", ssi1_clk)
+ _REGISTER_CLOCK(NULL, "ssi2", ssi2_clk)
+ _REGISTER_CLOCK("mxc_nand.0", NULL, nfc_clk)
+ _REGISTER_CLOCK(NULL, "vpu", vpu_clk)
+ _REGISTER_CLOCK(NULL, "dma", dma_clk)
+ _REGISTER_CLOCK(NULL, "rtic", rtic_clk)
+ _REGISTER_CLOCK(NULL, "brom", brom_clk)
+ _REGISTER_CLOCK(NULL, "emma", emma_clk)
+ _REGISTER_CLOCK(NULL, "slcdc", slcdc_clk)
+ _REGISTER_CLOCK("fec.0", NULL, fec_clk)
+ _REGISTER_CLOCK(NULL, "emi", emi_clk)
+ _REGISTER_CLOCK(NULL, "sahara2", sahara2_clk)
+ _REGISTER_CLOCK(NULL, "ata", ata_clk)
+ _REGISTER_CLOCK(NULL, "mstick", mstick_clk)
+ _REGISTER_CLOCK(NULL, "wdog", wdog_clk)
+ _REGISTER_CLOCK(NULL, "gpio", gpio_clk)
+ _REGISTER_CLOCK("imx-i2c.0", NULL, i2c1_clk)
+ _REGISTER_CLOCK("imx-i2c.1", NULL, i2c2_clk)
+ _REGISTER_CLOCK(NULL, "iim", iim_clk)
+ _REGISTER_CLOCK(NULL, "kpp", kpp_clk)
+ _REGISTER_CLOCK("mxc_w1.0", NULL, owire_clk)
+ _REGISTER_CLOCK(NULL, "rtc", rtc_clk)
+ _REGISTER_CLOCK(NULL, "scc", scc_clk)
};
-static struct clk ssi2_clk[] = {
- {
- .name = "ssi_clk",
- .id = 1,
- .parent = &mpll_main_clk[1],
- .secondary = &ssi2_clk[1],
- .get_rate = _clk_ssi2_recalc,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_SSI2_BAUD_OFFSET,
- .disable = _clk_disable,
- }, {
- .name = "ssi_ipg_clk",
- .id = 1,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_SSI2_IPG_OFFSET,
- .disable = _clk_disable,
- },
-};
-
-static struct clk nfc_clk = {
- .name = "nfc",
- .parent = &cpu_clk,
- .get_rate = _clk_nfc_recalc,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_NFC_BAUD_OFFSET,
- .disable = _clk_disable,
-};
-
-static struct clk vpu_clk = {
- .name = "vpu_clk",
- .parent = &mpll_main_clk[1],
- .get_rate = _clk_vpu_recalc,
- .enable = _clk_vpu_enable,
- .disable = _clk_vpu_disable,
-};
-
-static struct clk dma_clk = {
- .name = "dma",
- .parent = &ahb_clk,
- .enable = _clk_dma_enable,
- .disable = _clk_dma_disable,
-};
-
-static struct clk rtic_clk = {
- .name = "rtic_clk",
- .parent = &ahb_clk,
- .enable = _clk_rtic_enable,
- .disable = _clk_rtic_disable,
-};
-
-static struct clk brom_clk = {
- .name = "brom_clk",
- .parent = &ahb_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_HCLK_BROM_OFFSET,
- .disable = _clk_disable,
-};
-
-static struct clk emma_clk = {
- .name = "emma_clk",
- .parent = &ahb_clk,
- .enable = _clk_emma_enable,
- .disable = _clk_emma_disable,
-};
-
-static struct clk slcdc_clk = {
- .name = "slcdc_clk",
- .parent = &ahb_clk,
- .enable = _clk_slcdc_enable,
- .disable = _clk_slcdc_disable,
-};
-
-static struct clk fec_clk = {
- .name = "fec_clk",
- .parent = &ahb_clk,
- .enable = _clk_fec_enable,
- .disable = _clk_fec_disable,
-};
-
-static struct clk emi_clk = {
- .name = "emi_clk",
- .parent = &ahb_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_HCLK_EMI_OFFSET,
- .disable = _clk_disable,
-};
-
-static struct clk sahara2_clk = {
- .name = "sahara_clk",
- .parent = &ahb_clk,
- .enable = _clk_sahara2_enable,
- .disable = _clk_sahara2_disable,
-};
-
-static struct clk ata_clk = {
- .name = "ata_clk",
- .parent = &ahb_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_HCLK_ATA_OFFSET,
- .disable = _clk_disable,
-};
-
-static struct clk mstick1_clk = {
- .name = "mstick1_clk",
- .parent = &ipg_clk,
- .enable = _clk_mstick1_enable,
- .disable = _clk_mstick1_disable,
-};
-
-static struct clk wdog_clk = {
- .name = "wdog_clk",
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR1_WDT_OFFSET,
- .disable = _clk_disable,
-};
-
-static struct clk gpio_clk = {
- .name = "gpio_clk",
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR1,
- .enable_shift = CCM_PCCR0_GPIO_OFFSET,
- .disable = _clk_disable,
-};
-
-static struct clk i2c_clk[] = {
- {
- .name = "i2c_clk",
- .id = 0,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_I2C1_OFFSET,
- .disable = _clk_disable,
- }, {
- .name = "i2c_clk",
- .id = 1,
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_I2C2_OFFSET,
- .disable = _clk_disable,
- },
-};
-
-static struct clk iim_clk = {
- .name = "iim_clk",
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_IIM_OFFSET,
- .disable = _clk_disable,
-};
-
-static struct clk kpp_clk = {
- .name = "kpp_clk",
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_KPP_OFFSET,
- .disable = _clk_disable,
-};
-
-static struct clk owire_clk = {
- .name = "owire",
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_OWIRE_OFFSET,
- .disable = _clk_disable,
-};
-
-static struct clk rtc_clk = {
- .name = "rtc_clk",
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_RTC_OFFSET,
- .disable = _clk_disable,
-};
-
-static struct clk scc_clk = {
- .name = "scc_clk",
- .parent = &ipg_clk,
- .enable = _clk_enable,
- .enable_reg = CCM_PCCR0,
- .enable_shift = CCM_PCCR0_SCC_OFFSET,
- .disable = _clk_disable,
-};
-
-static unsigned long _clk_clko_round_rate(struct clk *clk, unsigned long rate)
+/* Adjust the clock path for TO2 and later */
+static void __init to2_adjust_clocks(void)
{
- u32 div;
- unsigned long parent_rate;
-
- parent_rate = clk_get_rate(clk->parent);
- div = parent_rate / rate;
- if (parent_rate % rate)
- div++;
-
- if (div > 8)
- div = 8;
-
- return parent_rate / div;
-}
-
-static int _clk_clko_set_rate(struct clk *clk, unsigned long rate)
-{
- u32 reg;
- u32 div;
- unsigned long parent_rate;
-
- parent_rate = clk_get_rate(clk->parent);
-
- div = parent_rate / rate;
-
- if (div > 8 || div < 1 || ((parent_rate / div) != rate))
- return -EINVAL;
- div--;
-
- reg = __raw_readl(CCM_PCDR0) & ~CCM_PCDR0_CLKODIV_MASK;
- reg |= div << CCM_PCDR0_CLKODIV_OFFSET;
- __raw_writel(reg, CCM_PCDR0);
-
- return 0;
-}
-
-static unsigned long _clk_clko_recalc(struct clk *clk)
-{
- u32 div;
- unsigned long parent_rate;
-
- parent_rate = clk_get_rate(clk->parent);
-
- div = __raw_readl(CCM_PCDR0) & CCM_PCDR0_CLKODIV_MASK >>
- CCM_PCDR0_CLKODIV_OFFSET;
- div++;
-
- return parent_rate / div;
-}
-
-static int _clk_clko_set_parent(struct clk *clk, struct clk *parent)
-{
- u32 reg;
-
- reg = __raw_readl(CCM_CCSR) & ~CCM_CCSR_CLKOSEL_MASK;
-
- if (parent == &ckil_clk)
- reg |= 0 << CCM_CCSR_CLKOSEL_OFFSET;
- else if (parent == &ckih_clk)
- reg |= 2 << CCM_CCSR_CLKOSEL_OFFSET;
- else if (parent == mpll_clk.parent)
- reg |= 3 << CCM_CCSR_CLKOSEL_OFFSET;
- else if (parent == spll_clk.parent)
- reg |= 4 << CCM_CCSR_CLKOSEL_OFFSET;
- else if (parent == &mpll_clk)
- reg |= 5 << CCM_CCSR_CLKOSEL_OFFSET;
- else if (parent == &spll_clk)
- reg |= 6 << CCM_CCSR_CLKOSEL_OFFSET;
- else if (parent == &cpu_clk)
- reg |= 7 << CCM_CCSR_CLKOSEL_OFFSET;
- else if (parent == &ahb_clk)
- reg |= 8 << CCM_CCSR_CLKOSEL_OFFSET;
- else if (parent == &ipg_clk)
- reg |= 9 << CCM_CCSR_CLKOSEL_OFFSET;
- else if (parent == &per_clk[0])
- reg |= 0xA << CCM_CCSR_CLKOSEL_OFFSET;
- else if (parent == &per_clk[1])
- reg |= 0xB << CCM_CCSR_CLKOSEL_OFFSET;
- else if (parent == &per_clk[2])
- reg |= 0xC << CCM_CCSR_CLKOSEL_OFFSET;
- else if (parent == &per_clk[3])
- reg |= 0xD << CCM_CCSR_CLKOSEL_OFFSET;
- else if (parent == &ssi1_clk[0])
- reg |= 0xE << CCM_CCSR_CLKOSEL_OFFSET;
- else if (parent == &ssi2_clk[0])
- reg |= 0xF << CCM_CCSR_CLKOSEL_OFFSET;
- else if (parent == &nfc_clk)
- reg |= 0x10 << CCM_CCSR_CLKOSEL_OFFSET;
- else if (parent == &mstick1_clk)
- reg |= 0x11 << CCM_CCSR_CLKOSEL_OFFSET;
- else if (parent == &vpu_clk)
- reg |= 0x12 << CCM_CCSR_CLKOSEL_OFFSET;
- else if (parent == &usb_clk[0])
- reg |= 0x15 << CCM_CCSR_CLKOSEL_OFFSET;
- else
- return -EINVAL;
-
- __raw_writel(reg, CCM_CCSR);
-
- return 0;
-}
-
-static int _clk_clko_enable(struct clk *clk)
-{
- u32 reg;
-
- reg = __raw_readl(CCM_PCDR0) | CCM_PCDR0_CLKO_EN;
- __raw_writel(reg, CCM_PCDR0);
-
- return 0;
-}
-
-static void _clk_clko_disable(struct clk *clk)
-{
- u32 reg;
-
- reg = __raw_readl(CCM_PCDR0) & ~CCM_PCDR0_CLKO_EN;
- __raw_writel(reg, CCM_PCDR0);
-}
-
-static struct clk clko_clk = {
- .name = "clko_clk",
- .get_rate = _clk_clko_recalc,
- .set_rate = _clk_clko_set_rate,
- .round_rate = _clk_clko_round_rate,
- .set_parent = _clk_clko_set_parent,
- .enable = _clk_clko_enable,
- .disable = _clk_clko_disable,
-};
-
-static struct clk *mxc_clks[] = {
- &ckih_clk,
- &ckil_clk,
- &mpll_clk,
- &mpll_main_clk[0],
- &mpll_main_clk[1],
- &spll_clk,
- &cpu_clk,
- &ahb_clk,
- &ipg_clk,
- &per_clk[0],
- &per_clk[1],
- &per_clk[2],
- &per_clk[3],
- &clko_clk,
- &uart1_clk[0],
- &uart1_clk[1],
- &uart2_clk[0],
- &uart2_clk[1],
- &uart3_clk[0],
- &uart3_clk[1],
- &uart4_clk[0],
- &uart4_clk[1],
- &uart5_clk[0],
- &uart5_clk[1],
- &uart6_clk[0],
- &uart6_clk[1],
- &gpt1_clk[0],
- &gpt1_clk[1],
- &gpt2_clk[0],
- &gpt2_clk[1],
- &gpt3_clk[0],
- &gpt3_clk[1],
- &gpt4_clk[0],
- &gpt4_clk[1],
- &gpt5_clk[0],
- &gpt5_clk[1],
- &gpt6_clk[0],
- &gpt6_clk[1],
- &pwm_clk[0],
- &pwm_clk[1],
- &sdhc1_clk[0],
- &sdhc1_clk[1],
- &sdhc2_clk[0],
- &sdhc2_clk[1],
- &sdhc3_clk[0],
- &sdhc3_clk[1],
- &cspi1_clk[0],
- &cspi1_clk[1],
- &cspi2_clk[0],
- &cspi2_clk[1],
- &cspi3_clk[0],
- &cspi3_clk[1],
- &lcdc_clk[0],
- &lcdc_clk[1],
- &lcdc_clk[2],
- &csi_clk[0],
- &csi_clk[1],
- &usb_clk[0],
- &usb_clk[1],
- &ssi1_clk[0],
- &ssi1_clk[1],
- &ssi2_clk[0],
- &ssi2_clk[1],
- &nfc_clk,
- &vpu_clk,
- &dma_clk,
- &rtic_clk,
- &brom_clk,
- &emma_clk,
- &slcdc_clk,
- &fec_clk,
- &emi_clk,
- &sahara2_clk,
- &ata_clk,
- &mstick1_clk,
- &wdog_clk,
- &gpio_clk,
- &i2c_clk[0],
- &i2c_clk[1],
- &iim_clk,
- &kpp_clk,
- &owire_clk,
- &rtc_clk,
- &scc_clk,
-};
-
-void __init change_external_low_reference(unsigned long new_ref)
-{
- external_low_reference = new_ref;
-}
-
-unsigned long __init clk_early_get_timer_rate(void)
-{
- return clk_get_rate(&per_clk[0]);
-}
-
-static void __init probe_mxc_clocks(void)
-{
- int i;
+ unsigned long cscr = __raw_readl(CCM_CSCR);
if (mx27_revision() >= CHIP_REV_2_0) {
- if (CSCR() & 0x8000)
- cpu_clk.parent = &mpll_main_clk[0];
+ if (cscr & CCM_CSCR_ARM_SRC)
+ cpu_clk.parent = &mpll_main1_clk;
- if (!(CSCR() & 0x00800000))
- ssi2_clk[0].parent = &spll_clk;
+ if (!(cscr & CCM_CSCR_SSI2))
+ ssi1_clk.parent = &spll_clk;
- if (!(CSCR() & 0x00400000))
- ssi1_clk[0].parent = &spll_clk;
+ if (!(cscr & CCM_CSCR_SSI1))
+ ssi1_clk.parent = &spll_clk;
- if (!(CSCR() & 0x00200000))
+ if (!(cscr & CCM_CSCR_VPU))
vpu_clk.parent = &spll_clk;
} else {
cpu_clk.parent = &mpll_clk;
@@ -1537,11 +693,13 @@
cpu_clk.set_rate = NULL;
ahb_clk.parent = &mpll_clk;
- for (i = 0; i < sizeof(per_clk) / sizeof(per_clk[0]); i++)
- per_clk[i].parent = &mpll_clk;
+ per1_clk.parent = &mpll_clk;
+ per2_clk.parent = &mpll_clk;
+ per3_clk.parent = &mpll_clk;
+ per4_clk.parent = &mpll_clk;
- ssi1_clk[0].parent = &mpll_clk;
- ssi2_clk[0].parent = &mpll_clk;
+ ssi1_clk.parent = &mpll_clk;
+ ssi2_clk.parent = &mpll_clk;
vpu_clk.parent = &mpll_clk;
}
@@ -1553,48 +711,45 @@
*/
int __init mx27_clocks_init(unsigned long fref)
{
- u32 cscr;
- struct clk **clkp;
+ u32 cscr = __raw_readl(CCM_CSCR);
+ int i;
external_high_reference = fref;
- /* detect clock reference for both system PLL */
- cscr = CSCR();
+ /* detect clock reference for both system PLLs */
if (cscr & CCM_CSCR_MCU)
mpll_clk.parent = &ckih_clk;
else
- mpll_clk.parent = &ckil_clk;
+ mpll_clk.parent = &fpm_clk;
if (cscr & CCM_CSCR_SP)
spll_clk.parent = &ckih_clk;
else
- spll_clk.parent = &ckil_clk;
+ spll_clk.parent = &fpm_clk;
- probe_mxc_clocks();
+ to2_adjust_clocks();
- per_clk[0].enable(&per_clk[0]);
- gpt1_clk[1].enable(&gpt1_clk[1]);
+ for (i = 0; i < ARRAY_SIZE(lookups); i++)
+ clkdev_add(&lookups[i]);
- for (clkp = mxc_clks; clkp < mxc_clks + ARRAY_SIZE(mxc_clks); clkp++)
- clk_register(*clkp);
+ /* Turn off all clocks we do not need */
+ __raw_writel(0, CCM_PCCR0);
+ __raw_writel((1 << 10) | (1 << 19), CCM_PCCR1);
- /* Turn off all possible clocks */
- __raw_writel(CCM_PCCR0_GPT1_MASK, CCM_PCCR0);
- __raw_writel(CCM_PCCR1_PERCLK1_MASK | CCM_PCCR1_HCLK_EMI_MASK,
- CCM_PCCR1);
spll_clk.disable(&spll_clk);
- /* This will propagate to all children and init all the clock rates */
-
- clk_enable(&emi_clk);
+ /* enable basic clocks */
+ clk_enable(&per1_clk);
clk_enable(&gpio_clk);
+ clk_enable(&emi_clk);
clk_enable(&iim_clk);
- clk_enable(&gpt1_clk[0]);
+
#ifdef CONFIG_DEBUG_LL_CONSOLE
- clk_enable(&uart1_clk[0]);
+ clk_enable(&uart1_clk);
#endif
- mxc_timer_init(&gpt1_clk[0]);
+ mxc_timer_init(&gpt1_clk);
return 0;
}
+
diff --git a/arch/arm/mach-mx2/cpu_imx27.c b/arch/arm/mach-mx2/cpu_imx27.c
index 239308f..d9e3bf9 100644
--- a/arch/arm/mach-mx2/cpu_imx27.c
+++ b/arch/arm/mach-mx2/cpu_imx27.c
@@ -26,11 +26,11 @@
#include <mach/hardware.h>
-#include "crm_regs.h"
-
static int cpu_silicon_rev = -1;
static int cpu_partnumber;
+#define SYS_CHIP_ID 0x00 /* The offset of CHIP ID register */
+
static void query_silicon_parameter(void)
{
u32 val;
diff --git a/arch/arm/mach-mx2/crm_regs.h b/arch/arm/mach-mx2/crm_regs.h
deleted file mode 100644
index 94644cd..0000000
--- a/arch/arm/mach-mx2/crm_regs.h
+++ /dev/null
@@ -1,273 +0,0 @@
-/*
- * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
- * Copyright 2008 Juergen Beisert, kernel@pengutronix.de
- *
- * 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_MX2_CRM_REGS_H__
-#define __ARCH_ARM_MACH_MX2_CRM_REGS_H__
-
-#include <mach/hardware.h>
-
-/* Register offsets */
-#define CCM_CSCR (IO_ADDRESS(CCM_BASE_ADDR) + 0x0)
-#define CCM_MPCTL0 (IO_ADDRESS(CCM_BASE_ADDR) + 0x4)
-#define CCM_MPCTL1 (IO_ADDRESS(CCM_BASE_ADDR) + 0x8)
-#define CCM_SPCTL0 (IO_ADDRESS(CCM_BASE_ADDR) + 0xC)
-#define CCM_SPCTL1 (IO_ADDRESS(CCM_BASE_ADDR) + 0x10)
-#define CCM_OSC26MCTL (IO_ADDRESS(CCM_BASE_ADDR) + 0x14)
-#define CCM_PCDR0 (IO_ADDRESS(CCM_BASE_ADDR) + 0x18)
-#define CCM_PCDR1 (IO_ADDRESS(CCM_BASE_ADDR) + 0x1c)
-#define CCM_PCCR0 (IO_ADDRESS(CCM_BASE_ADDR) + 0x20)
-#define CCM_PCCR1 (IO_ADDRESS(CCM_BASE_ADDR) + 0x24)
-#define CCM_CCSR (IO_ADDRESS(CCM_BASE_ADDR) + 0x28)
-#define CCM_PMCTL (IO_ADDRESS(CCM_BASE_ADDR) + 0x2c)
-#define CCM_PMCOUNT (IO_ADDRESS(CCM_BASE_ADDR) + 0x30)
-#define CCM_WKGDCTL (IO_ADDRESS(CCM_BASE_ADDR) + 0x34)
-
-#define CCM_CSCR_USB_OFFSET 28
-#define CCM_CSCR_USB_MASK (0x7 << 28)
-#define CCM_CSCR_SD_OFFSET 24
-#define CCM_CSCR_SD_MASK (0x3 << 24)
-#define CCM_CSCR_SSI2 (1 << 23)
-#define CCM_CSCR_SSI2_OFFSET 23
-#define CCM_CSCR_SSI1 (1 << 22)
-#define CCM_CSCR_SSI1_OFFSET 22
-#define CCM_CSCR_VPU (1 << 21)
-#define CCM_CSCR_VPU_OFFSET 21
-#define CCM_CSCR_MSHC (1 << 20)
-#define CCM_CSCR_SPLLRES (1 << 19)
-#define CCM_CSCR_MPLLRES (1 << 18)
-#define CCM_CSCR_SP (1 << 17)
-#define CCM_CSCR_MCU (1 << 16)
-/* CCM_CSCR_ARM_xxx just be avaliable on i.MX27 TO2*/
-#define CCM_CSCR_ARM_SRC (1 << 15)
-#define CCM_CSCR_ARM_OFFSET 12
-#define CCM_CSCR_ARM_MASK (0x3 << 12)
-/* CCM_CSCR_ARM_xxx just be avaliable on i.MX27 TO2*/
-#define CCM_CSCR_PRESC_OFFSET 13
-#define CCM_CSCR_PRESC_MASK (0x7 << 13)
-#define CCM_CSCR_BCLK_OFFSET 9
-#define CCM_CSCR_BCLK_MASK (0xf << 9)
-#define CCM_CSCR_IPDIV_OFFSET 8
-#define CCM_CSCR_IPDIV (1 << 8)
-/* CCM_CSCR_AHB_xxx just be avaliable on i.MX27 TO2*/
-#define CCM_CSCR_AHB_OFFSET 8
-#define CCM_CSCR_AHB_MASK (0x3 << 8)
-/* CCM_CSCR_AHB_xxx just be avaliable on i.MX27 TO2*/
-#define CCM_CSCR_OSC26MDIV (1 << 4)
-#define CCM_CSCR_OSC26M (1 << 3)
-#define CCM_CSCR_FPM (1 << 2)
-#define CCM_CSCR_SPEN (1 << 1)
-#define CCM_CSCR_MPEN 1
-
-#define CCM_MPCTL0_CPLM (1 << 31)
-#define CCM_MPCTL0_PD_OFFSET 26
-#define CCM_MPCTL0_PD_MASK (0xf << 26)
-#define CCM_MPCTL0_MFD_OFFSET 16
-#define CCM_MPCTL0_MFD_MASK (0x3ff << 16)
-#define CCM_MPCTL0_MFI_OFFSET 10
-#define CCM_MPCTL0_MFI_MASK (0xf << 10)
-#define CCM_MPCTL0_MFN_OFFSET 0
-#define CCM_MPCTL0_MFN_MASK 0x3ff
-
-#define CCM_MPCTL1_LF (1 << 15)
-#define CCM_MPCTL1_BRMO (1 << 6)
-
-#define CCM_SPCTL0_CPLM (1 << 31)
-#define CCM_SPCTL0_PD_OFFSET 26
-#define CCM_SPCTL0_PD_MASK (0xf << 26)
-#define CCM_SPCTL0_MFD_OFFSET 16
-#define CCM_SPCTL0_MFD_MASK (0x3ff << 16)
-#define CCM_SPCTL0_MFI_OFFSET 10
-#define CCM_SPCTL0_MFI_MASK (0xf << 10)
-#define CCM_SPCTL0_MFN_OFFSET 0
-#define CCM_SPCTL0_MFN_MASK 0x3ff
-
-#define CCM_SPCTL1_LF (1 << 15)
-#define CCM_SPCTL1_BRMO (1 << 6)
-
-#define CCM_OSC26MCTL_PEAK_OFFSET 16
-#define CCM_OSC26MCTL_PEAK_MASK (0x3 << 16)
-#define CCM_OSC26MCTL_AGC_OFFSET 8
-#define CCM_OSC26MCTL_AGC_MASK (0x3f << 8)
-#define CCM_OSC26MCTL_ANATEST_OFFSET 0
-#define CCM_OSC26MCTL_ANATEST_MASK 0x3f
-
-#define CCM_PCDR0_SSI2BAUDDIV_OFFSET 26
-#define CCM_PCDR0_SSI2BAUDDIV_MASK (0x3f << 26)
-#define CCM_PCDR0_CLKO_EN 25
-#define CCM_PCDR0_CLKODIV_OFFSET 22
-#define CCM_PCDR0_CLKODIV_MASK (0x7 << 22)
-#define CCM_PCDR0_SSI1BAUDDIV_OFFSET 16
-#define CCM_PCDR0_SSI1BAUDDIV_MASK (0x3f << 16)
-/*The difinition for i.MX27 TO2*/
-#define CCM_PCDR0_VPUDIV2_OFFSET 10
-#define CCM_PCDR0_VPUDIV2_MASK (0x3f << 10)
-#define CCM_PCDR0_NFCDIV2_OFFSET 6
-#define CCM_PCDR0_NFCDIV2_MASK (0xf << 6)
-#define CCM_PCDR0_MSHCDIV2_MASK 0x3f
-/*The difinition for i.MX27 TO2*/
-#define CCM_PCDR0_NFCDIV_OFFSET 12
-#define CCM_PCDR0_NFCDIV_MASK (0xf << 12)
-#define CCM_PCDR0_VPUDIV_OFFSET 8
-#define CCM_PCDR0_VPUDIV_MASK (0xf << 8)
-#define CCM_PCDR0_MSHCDIV_OFFSET 0
-#define CCM_PCDR0_MSHCDIV_MASK 0x1f
-
-#define CCM_PCDR1_PERDIV4_OFFSET 24
-#define CCM_PCDR1_PERDIV4_MASK (0x3f << 24)
-#define CCM_PCDR1_PERDIV3_OFFSET 16
-#define CCM_PCDR1_PERDIV3_MASK (0x3f << 16)
-#define CCM_PCDR1_PERDIV2_OFFSET 8
-#define CCM_PCDR1_PERDIV2_MASK (0x3f << 8)
-#define CCM_PCDR1_PERDIV1_OFFSET 0
-#define CCM_PCDR1_PERDIV1_MASK 0x3f
-
-#define CCM_PCCR0_CSPI1_OFFSET 31
-#define CCM_PCCR0_CSPI1_MASK (1 << 31)
-#define CCM_PCCR0_CSPI2_OFFSET 30
-#define CCM_PCCR0_CSPI2_MASK (1 << 30)
-#define CCM_PCCR0_CSPI3_OFFSET 29
-#define CCM_PCCR0_CSPI3_MASK (1 << 29)
-#define CCM_PCCR0_DMA_OFFSET 28
-#define CCM_PCCR0_DMA_MASK (1 << 28)
-#define CCM_PCCR0_EMMA_OFFSET 27
-#define CCM_PCCR0_EMMA_MASK (1 << 27)
-#define CCM_PCCR0_FEC_OFFSET 26
-#define CCM_PCCR0_FEC_MASK (1 << 26)
-#define CCM_PCCR0_GPIO_OFFSET 25
-#define CCM_PCCR0_GPIO_MASK (1 << 25)
-#define CCM_PCCR0_GPT1_OFFSET 24
-#define CCM_PCCR0_GPT1_MASK (1 << 24)
-#define CCM_PCCR0_GPT2_OFFSET 23
-#define CCM_PCCR0_GPT2_MASK (1 << 23)
-#define CCM_PCCR0_GPT3_OFFSET 22
-#define CCM_PCCR0_GPT3_MASK (1 << 22)
-#define CCM_PCCR0_GPT4_OFFSET 21
-#define CCM_PCCR0_GPT4_MASK (1 << 21)
-#define CCM_PCCR0_GPT5_OFFSET 20
-#define CCM_PCCR0_GPT5_MASK (1 << 20)
-#define CCM_PCCR0_GPT6_OFFSET 19
-#define CCM_PCCR0_GPT6_MASK (1 << 19)
-#define CCM_PCCR0_I2C1_OFFSET 18
-#define CCM_PCCR0_I2C1_MASK (1 << 18)
-#define CCM_PCCR0_I2C2_OFFSET 17
-#define CCM_PCCR0_I2C2_MASK (1 << 17)
-#define CCM_PCCR0_IIM_OFFSET 16
-#define CCM_PCCR0_IIM_MASK (1 << 16)
-#define CCM_PCCR0_KPP_OFFSET 15
-#define CCM_PCCR0_KPP_MASK (1 << 15)
-#define CCM_PCCR0_LCDC_OFFSET 14
-#define CCM_PCCR0_LCDC_MASK (1 << 14)
-#define CCM_PCCR0_MSHC_OFFSET 13
-#define CCM_PCCR0_MSHC_MASK (1 << 13)
-#define CCM_PCCR0_OWIRE_OFFSET 12
-#define CCM_PCCR0_OWIRE_MASK (1 << 12)
-#define CCM_PCCR0_PWM_OFFSET 11
-#define CCM_PCCR0_PWM_MASK (1 << 11)
-#define CCM_PCCR0_RTC_OFFSET 9
-#define CCM_PCCR0_RTC_MASK (1 << 9)
-#define CCM_PCCR0_RTIC_OFFSET 8
-#define CCM_PCCR0_RTIC_MASK (1 << 8)
-#define CCM_PCCR0_SAHARA_OFFSET 7
-#define CCM_PCCR0_SAHARA_MASK (1 << 7)
-#define CCM_PCCR0_SCC_OFFSET 6
-#define CCM_PCCR0_SCC_MASK (1 << 6)
-#define CCM_PCCR0_SDHC1_OFFSET 5
-#define CCM_PCCR0_SDHC1_MASK (1 << 5)
-#define CCM_PCCR0_SDHC2_OFFSET 4
-#define CCM_PCCR0_SDHC2_MASK (1 << 4)
-#define CCM_PCCR0_SDHC3_OFFSET 3
-#define CCM_PCCR0_SDHC3_MASK (1 << 3)
-#define CCM_PCCR0_SLCDC_OFFSET 2
-#define CCM_PCCR0_SLCDC_MASK (1 << 2)
-#define CCM_PCCR0_SSI1_IPG_OFFSET 1
-#define CCM_PCCR0_SSI1_IPG_MASK (1 << 1)
-#define CCM_PCCR0_SSI2_IPG_OFFSET 0
-#define CCM_PCCR0_SSI2_IPG_MASK (1 << 0)
-
-#define CCM_PCCR1_UART1_OFFSET 31
-#define CCM_PCCR1_UART1_MASK (1 << 31)
-#define CCM_PCCR1_UART2_OFFSET 30
-#define CCM_PCCR1_UART2_MASK (1 << 30)
-#define CCM_PCCR1_UART3_OFFSET 29
-#define CCM_PCCR1_UART3_MASK (1 << 29)
-#define CCM_PCCR1_UART4_OFFSET 28
-#define CCM_PCCR1_UART4_MASK (1 << 28)
-#define CCM_PCCR1_UART5_OFFSET 27
-#define CCM_PCCR1_UART5_MASK (1 << 27)
-#define CCM_PCCR1_UART6_OFFSET 26
-#define CCM_PCCR1_UART6_MASK (1 << 26)
-#define CCM_PCCR1_USBOTG_OFFSET 25
-#define CCM_PCCR1_USBOTG_MASK (1 << 25)
-#define CCM_PCCR1_WDT_OFFSET 24
-#define CCM_PCCR1_WDT_MASK (1 << 24)
-#define CCM_PCCR1_HCLK_ATA_OFFSET 23
-#define CCM_PCCR1_HCLK_ATA_MASK (1 << 23)
-#define CCM_PCCR1_HCLK_BROM_OFFSET 22
-#define CCM_PCCR1_HCLK_BROM_MASK (1 << 22)
-#define CCM_PCCR1_HCLK_CSI_OFFSET 21
-#define CCM_PCCR1_HCLK_CSI_MASK (1 << 21)
-#define CCM_PCCR1_HCLK_DMA_OFFSET 20
-#define CCM_PCCR1_HCLK_DMA_MASK (1 << 20)
-#define CCM_PCCR1_HCLK_EMI_OFFSET 19
-#define CCM_PCCR1_HCLK_EMI_MASK (1 << 19)
-#define CCM_PCCR1_HCLK_EMMA_OFFSET 18
-#define CCM_PCCR1_HCLK_EMMA_MASK (1 << 18)
-#define CCM_PCCR1_HCLK_FEC_OFFSET 17
-#define CCM_PCCR1_HCLK_FEC_MASK (1 << 17)
-#define CCM_PCCR1_HCLK_VPU_OFFSET 16
-#define CCM_PCCR1_HCLK_VPU_MASK (1 << 16)
-#define CCM_PCCR1_HCLK_LCDC_OFFSET 15
-#define CCM_PCCR1_HCLK_LCDC_MASK (1 << 15)
-#define CCM_PCCR1_HCLK_RTIC_OFFSET 14
-#define CCM_PCCR1_HCLK_RTIC_MASK (1 << 14)
-#define CCM_PCCR1_HCLK_SAHARA_OFFSET 13
-#define CCM_PCCR1_HCLK_SAHARA_MASK (1 << 13)
-#define CCM_PCCR1_HCLK_SLCDC_OFFSET 12
-#define CCM_PCCR1_HCLK_SLCDC_MASK (1 << 12)
-#define CCM_PCCR1_HCLK_USBOTG_OFFSET 11
-#define CCM_PCCR1_HCLK_USBOTG_MASK (1 << 11)
-#define CCM_PCCR1_PERCLK1_OFFSET 10
-#define CCM_PCCR1_PERCLK1_MASK (1 << 10)
-#define CCM_PCCR1_PERCLK2_OFFSET 9
-#define CCM_PCCR1_PERCLK2_MASK (1 << 9)
-#define CCM_PCCR1_PERCLK3_OFFSET 8
-#define CCM_PCCR1_PERCLK3_MASK (1 << 8)
-#define CCM_PCCR1_PERCLK4_OFFSET 7
-#define CCM_PCCR1_PERCLK4_MASK (1 << 7)
-#define CCM_PCCR1_VPU_BAUD_OFFSET 6
-#define CCM_PCCR1_VPU_BAUD_MASK (1 << 6)
-#define CCM_PCCR1_SSI1_BAUD_OFFSET 5
-#define CCM_PCCR1_SSI1_BAUD_MASK (1 << 5)
-#define CCM_PCCR1_SSI2_BAUD_OFFSET 4
-#define CCM_PCCR1_SSI2_BAUD_MASK (1 << 4)
-#define CCM_PCCR1_NFC_BAUD_OFFSET 3
-#define CCM_PCCR1_NFC_BAUD_MASK (1 << 3)
-#define CCM_PCCR1_MSHC_BAUD_OFFSET 2
-#define CCM_PCCR1_MSHC_BAUD_MASK (1 << 2)
-
-#define CCM_CCSR_32KSR (1 << 15)
-#define CCM_CCSR_CLKMODE1 (1 << 9)
-#define CCM_CCSR_CLKMODE0 (1 << 8)
-#define CCM_CCSR_CLKOSEL_OFFSET 0
-#define CCM_CCSR_CLKOSEL_MASK 0x1f
-
-#define SYS_FMCR 0x14 /* Functional Muxing Control Reg */
-#define SYS_CHIP_ID 0x00 /* The offset of CHIP ID register */
-
-#endif /* __ARCH_ARM_MACH_MX2_CRM_REGS_H__ */
diff --git a/arch/arm/plat-mxc/Kconfig b/arch/arm/plat-mxc/Kconfig
index 9cc2b16..10f65bf 100644
--- a/arch/arm/plat-mxc/Kconfig
+++ b/arch/arm/plat-mxc/Kconfig
@@ -15,6 +15,7 @@
config ARCH_MX2
bool "MX2-based"
select CPU_ARM926T
+ select COMMON_CLKDEV
help
This enables support for systems based on the Freescale i.MX2 family