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-rw-r--r--arch/arm/mach-mxs/clock-mx23.c10
-rw-r--r--arch/arm/mach-mxs/clock-mx28.c48
-rw-r--r--arch/arm/mach-mxs/clock.c33
-rw-r--r--arch/arm/mach-mxs/devices-mx28.h3
-rw-r--r--arch/arm/mach-mxs/devices/platform-mxs-saif.c5
-rw-r--r--arch/arm/mach-mxs/include/mach/common.h2
-rw-r--r--arch/arm/mach-mxs/include/mach/devices-common.h4
-rw-r--r--arch/arm/mach-mxs/include/mach/digctl.h21
-rw-r--r--arch/arm/mach-mxs/include/mach/system.h2
-rw-r--r--arch/arm/mach-mxs/include/mach/vmalloc.h22
-rw-r--r--arch/arm/mach-mxs/mach-m28evk.c1
-rw-r--r--arch/arm/mach-mxs/mach-mx23evk.c1
-rw-r--r--arch/arm/mach-mxs/mach-mx28evk.c21
-rw-r--r--arch/arm/mach-mxs/mach-stmp378x_devb.c1
-rw-r--r--arch/arm/mach-mxs/mach-tx28.c1
-rw-r--r--arch/arm/mach-mxs/system.c6
-rw-r--r--arch/arm/mach-mxs/timer.c2
17 files changed, 128 insertions, 55 deletions
diff --git a/arch/arm/mach-mxs/clock-mx23.c b/arch/arm/mach-mxs/clock-mx23.c
index 0163b6d8377..e12e11231dc 100644
--- a/arch/arm/mach-mxs/clock-mx23.c
+++ b/arch/arm/mach-mxs/clock-mx23.c
@@ -545,11 +545,11 @@ int __init mx23_clocks_init(void)
*/
clk_set_parent(&ssp_clk, &ref_io_clk);
- clk_enable(&cpu_clk);
- clk_enable(&hbus_clk);
- clk_enable(&xbus_clk);
- clk_enable(&emi_clk);
- clk_enable(&uart_clk);
+ clk_prepare_enable(&cpu_clk);
+ clk_prepare_enable(&hbus_clk);
+ clk_prepare_enable(&xbus_clk);
+ clk_prepare_enable(&emi_clk);
+ clk_prepare_enable(&uart_clk);
clkdev_add_table(lookups, ARRAY_SIZE(lookups));
diff --git a/arch/arm/mach-mxs/clock-mx28.c b/arch/arm/mach-mxs/clock-mx28.c
index da6e4aad177..5d68e415222 100644
--- a/arch/arm/mach-mxs/clock-mx28.c
+++ b/arch/arm/mach-mxs/clock-mx28.c
@@ -22,6 +22,7 @@
#include <linux/io.h>
#include <linux/jiffies.h>
#include <linux/clkdev.h>
+#include <linux/spinlock.h>
#include <asm/clkdev.h>
#include <asm/div64.h>
@@ -29,6 +30,7 @@
#include <mach/mx28.h>
#include <mach/common.h>
#include <mach/clock.h>
+#include <mach/digctl.h>
#include "regs-clkctrl-mx28.h"
@@ -43,6 +45,33 @@ static struct clk emi_clk;
static struct clk saif0_clk;
static struct clk saif1_clk;
static struct clk clk32k_clk;
+static DEFINE_SPINLOCK(clkmux_lock);
+
+/*
+ * HW_SAIF_CLKMUX_SEL:
+ * DIRECT(0x0): SAIF0 clock pins selected for SAIF0 input clocks, and SAIF1
+ * clock pins selected for SAIF1 input clocks.
+ * CROSSINPUT(0x1): SAIF1 clock inputs selected for SAIF0 input clocks, and
+ * SAIF0 clock inputs selected for SAIF1 input clocks.
+ * EXTMSTR0(0x2): SAIF0 clock pin selected for both SAIF0 and SAIF1 input
+ * clocks.
+ * EXTMSTR1(0x3): SAIF1 clock pin selected for both SAIF0 and SAIF1 input
+ * clocks.
+ */
+int mxs_saif_clkmux_select(unsigned int clkmux)
+{
+ if (clkmux > 0x3)
+ return -EINVAL;
+
+ spin_lock(&clkmux_lock);
+ __raw_writel(BM_DIGCTL_CTRL_SAIF_CLKMUX,
+ DIGCTRL_BASE_ADDR + HW_DIGCTL_CTRL + MXS_CLR_ADDR);
+ __raw_writel(clkmux << BP_DIGCTL_CTRL_SAIF_CLKMUX,
+ DIGCTRL_BASE_ADDR + HW_DIGCTL_CTRL + MXS_SET_ADDR);
+ spin_unlock(&clkmux_lock);
+
+ return 0;
+}
static int _raw_clk_enable(struct clk *clk)
{
@@ -775,16 +804,25 @@ int __init mx28_clocks_init(void)
clk_set_parent(&ssp0_clk, &ref_io0_clk);
clk_set_parent(&ssp1_clk, &ref_io0_clk);
- clk_enable(&cpu_clk);
- clk_enable(&hbus_clk);
- clk_enable(&xbus_clk);
- clk_enable(&emi_clk);
- clk_enable(&uart_clk);
+ clk_prepare_enable(&cpu_clk);
+ clk_prepare_enable(&hbus_clk);
+ clk_prepare_enable(&xbus_clk);
+ clk_prepare_enable(&emi_clk);
+ clk_prepare_enable(&uart_clk);
clk_set_parent(&lcdif_clk, &ref_pix_clk);
clk_set_parent(&saif0_clk, &pll0_clk);
clk_set_parent(&saif1_clk, &pll0_clk);
+ /*
+ * Set an initial clock rate for the saif internal logic to work
+ * properly. This is important when working in EXTMASTER mode that
+ * uses the other saif's BITCLK&LRCLK but it still needs a basic
+ * clock which should be fast enough for the internal logic.
+ */
+ clk_set_rate(&saif0_clk, 24000000);
+ clk_set_rate(&saif1_clk, 24000000);
+
clkdev_add_table(lookups, ARRAY_SIZE(lookups));
mxs_timer_init(&clk32k_clk, MX28_INT_TIMER0);
diff --git a/arch/arm/mach-mxs/clock.c b/arch/arm/mach-mxs/clock.c
index a7093c88e6a..97a6f4acc6c 100644
--- a/arch/arm/mach-mxs/clock.c
+++ b/arch/arm/mach-mxs/clock.c
@@ -74,10 +74,15 @@ static int __clk_enable(struct clk *clk)
return 0;
}
-/* This function increments the reference count on the clock and enables the
- * clock if not already enabled. The parent clock tree is recursively enabled
+/*
+ * The clk_enable/clk_disable could be called by drivers in atomic context,
+ * so they should not really hold mutex. Instead, clk_prepare/clk_unprepare
+ * can hold a mutex, as the pair will only be called in non-atomic context.
+ * Before migrating to common clk framework, we can have __clk_enable and
+ * __clk_disable called in clk_prepare/clk_unprepare with mutex held and
+ * leave clk_enable/clk_disable as the dummy functions.
*/
-int clk_enable(struct clk *clk)
+int clk_prepare(struct clk *clk)
{
int ret = 0;
@@ -90,13 +95,9 @@ int clk_enable(struct clk *clk)
return ret;
}
-EXPORT_SYMBOL(clk_enable);
+EXPORT_SYMBOL(clk_prepare);
-/* This function decrements the reference count on the clock and disables
- * the clock when reference count is 0. The parent clock tree is
- * recursively disabled
- */
-void clk_disable(struct clk *clk)
+void clk_unprepare(struct clk *clk)
{
if (clk == NULL || IS_ERR(clk))
return;
@@ -105,6 +106,18 @@ void clk_disable(struct clk *clk)
__clk_disable(clk);
mutex_unlock(&clocks_mutex);
}
+EXPORT_SYMBOL(clk_unprepare);
+
+int clk_enable(struct clk *clk)
+{
+ return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+ /* nothing to do */
+}
EXPORT_SYMBOL(clk_disable);
/* Retrieve the *current* clock rate. If the clock itself
@@ -166,7 +179,7 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
return ret;
if (clk->usecount)
- clk_enable(parent);
+ clk_prepare_enable(parent);
mutex_lock(&clocks_mutex);
ret = clk->set_parent(clk, parent);
diff --git a/arch/arm/mach-mxs/devices-mx28.h b/arch/arm/mach-mxs/devices-mx28.h
index c8887103f0e..4f50094e293 100644
--- a/arch/arm/mach-mxs/devices-mx28.h
+++ b/arch/arm/mach-mxs/devices-mx28.h
@@ -47,6 +47,7 @@ struct platform_device *__init mx28_add_mxsfb(
const struct mxsfb_platform_data *pdata);
extern const struct mxs_saif_data mx28_saif_data[] __initconst;
-#define mx28_add_saif(id) mxs_add_saif(&mx28_saif_data[id])
+#define mx28_add_saif(id, pdata) \
+ mxs_add_saif(&mx28_saif_data[id], pdata)
struct platform_device *__init mx28_add_rtc_stmp3xxx(void);
diff --git a/arch/arm/mach-mxs/devices/platform-mxs-saif.c b/arch/arm/mach-mxs/devices/platform-mxs-saif.c
index 1ec965e9fe9..f6e3a60b420 100644
--- a/arch/arm/mach-mxs/devices/platform-mxs-saif.c
+++ b/arch/arm/mach-mxs/devices/platform-mxs-saif.c
@@ -32,7 +32,8 @@ const struct mxs_saif_data mx28_saif_data[] __initconst = {
};
#endif
-struct platform_device *__init mxs_add_saif(const struct mxs_saif_data *data)
+struct platform_device *__init mxs_add_saif(const struct mxs_saif_data *data,
+ const struct mxs_saif_platform_data *pdata)
{
struct resource res[] = {
{
@@ -56,5 +57,5 @@ struct platform_device *__init mxs_add_saif(const struct mxs_saif_data *data)
};
return mxs_add_platform_device("mxs-saif", data->id, res,
- ARRAY_SIZE(res), NULL, 0);
+ ARRAY_SIZE(res), pdata, sizeof(*pdata));
}
diff --git a/arch/arm/mach-mxs/include/mach/common.h b/arch/arm/mach-mxs/include/mach/common.h
index 635bb5d9a20..e1237ab2586 100644
--- a/arch/arm/mach-mxs/include/mach/common.h
+++ b/arch/arm/mach-mxs/include/mach/common.h
@@ -16,6 +16,8 @@ struct clk;
extern const u32 *mxs_get_ocotp(void);
extern int mxs_reset_block(void __iomem *);
extern void mxs_timer_init(struct clk *, int);
+extern void mxs_restart(char, const char *);
+extern int mxs_saif_clkmux_select(unsigned int clkmux);
extern int mx23_register_gpios(void);
extern int mx23_clocks_init(void);
diff --git a/arch/arm/mach-mxs/include/mach/devices-common.h b/arch/arm/mach-mxs/include/mach/devices-common.h
index a8080f44c03..dc369c1239f 100644
--- a/arch/arm/mach-mxs/include/mach/devices-common.h
+++ b/arch/arm/mach-mxs/include/mach/devices-common.h
@@ -94,6 +94,7 @@ struct platform_device *__init mxs_add_mxs_pwm(
resource_size_t iobase, int id);
/* saif */
+#include <sound/saif.h>
struct mxs_saif_data {
int id;
resource_size_t iobase;
@@ -103,4 +104,5 @@ struct mxs_saif_data {
};
struct platform_device *__init mxs_add_saif(
- const struct mxs_saif_data *data);
+ const struct mxs_saif_data *data,
+ const struct mxs_saif_platform_data *pdata);
diff --git a/arch/arm/mach-mxs/include/mach/digctl.h b/arch/arm/mach-mxs/include/mach/digctl.h
new file mode 100644
index 00000000000..49a888c65d6
--- /dev/null
+++ b/arch/arm/mach-mxs/include/mach/digctl.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __MACH_DIGCTL_H__
+#define __MACH_DIGCTL_H__
+
+/* MXS DIGCTL SAIF CLKMUX */
+#define MXS_DIGCTL_SAIF_CLKMUX_DIRECT 0x0
+#define MXS_DIGCTL_SAIF_CLKMUX_CROSSINPUT 0x1
+#define MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR0 0x2
+#define MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR1 0x3
+
+#define HW_DIGCTL_CTRL 0x0
+#define BP_DIGCTL_CTRL_SAIF_CLKMUX 10
+#define BM_DIGCTL_CTRL_SAIF_CLKMUX (0x3 << 10)
+#endif
diff --git a/arch/arm/mach-mxs/include/mach/system.h b/arch/arm/mach-mxs/include/mach/system.h
index 0e428239b43..e7ad1bb2942 100644
--- a/arch/arm/mach-mxs/include/mach/system.h
+++ b/arch/arm/mach-mxs/include/mach/system.h
@@ -22,6 +22,4 @@ static inline void arch_idle(void)
cpu_do_idle();
}
-void arch_reset(char mode, const char *cmd);
-
#endif /* __MACH_MXS_SYSTEM_H__ */
diff --git a/arch/arm/mach-mxs/include/mach/vmalloc.h b/arch/arm/mach-mxs/include/mach/vmalloc.h
deleted file mode 100644
index 103b0165ed0..00000000000
--- a/arch/arm/mach-mxs/include/mach/vmalloc.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright (C) 2000 Russell King.
- * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
- *
- * 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.
- */
-
-#ifndef __MACH_MXS_VMALLOC_H__
-#define __MACH_MXS_VMALLOC_H__
-
-/* vmalloc ending address */
-#define VMALLOC_END 0xf4000000UL
-
-#endif /* __MACH_MXS_VMALLOC_H__ */
diff --git a/arch/arm/mach-mxs/mach-m28evk.c b/arch/arm/mach-mxs/mach-m28evk.c
index 6b00577b702..2f2758230ed 100644
--- a/arch/arm/mach-mxs/mach-m28evk.c
+++ b/arch/arm/mach-mxs/mach-m28evk.c
@@ -363,4 +363,5 @@ MACHINE_START(M28EVK, "DENX M28 EVK")
.init_irq = mx28_init_irq,
.timer = &m28evk_timer,
.init_machine = m28evk_init,
+ .restart = mxs_restart,
MACHINE_END
diff --git a/arch/arm/mach-mxs/mach-mx23evk.c b/arch/arm/mach-mxs/mach-mx23evk.c
index c325fbe4e4c..5ea1c57d260 100644
--- a/arch/arm/mach-mxs/mach-mx23evk.c
+++ b/arch/arm/mach-mxs/mach-mx23evk.c
@@ -184,4 +184,5 @@ MACHINE_START(MX23EVK, "Freescale MX23 EVK")
.init_irq = mx23_init_irq,
.timer = &mx23evk_timer,
.init_machine = mx23evk_init,
+ .restart = mxs_restart,
MACHINE_END
diff --git a/arch/arm/mach-mxs/mach-mx28evk.c b/arch/arm/mach-mxs/mach-mx28evk.c
index 064ec5abaa5..fdb0a5664dd 100644
--- a/arch/arm/mach-mxs/mach-mx28evk.c
+++ b/arch/arm/mach-mxs/mach-mx28evk.c
@@ -27,6 +27,7 @@
#include <mach/common.h>
#include <mach/iomux-mx28.h>
+#include <mach/digctl.h>
#include "devices-mx28.h"
@@ -228,7 +229,7 @@ static void __init mx28evk_fec_reset(void)
/* Enable fec phy clock */
clk = clk_get_sys("pll2", NULL);
if (!IS_ERR(clk))
- clk_enable(clk);
+ clk_prepare_enable(clk);
/* Power up fec phy */
ret = gpio_request(MX28EVK_FEC_PHY_POWER, "fec-phy-power");
@@ -421,6 +422,18 @@ static struct gpio mx28evk_lcd_gpios[] = {
{ MX28EVK_BL_ENABLE, GPIOF_OUT_INIT_HIGH, "bl-enable" },
};
+static const struct mxs_saif_platform_data
+ mx28evk_mxs_saif_pdata[] __initconst = {
+ /* working on EXTMSTR0 mode (saif0 master, saif1 slave) */
+ {
+ .master_mode = 1,
+ .master_id = 0,
+ }, {
+ .master_mode = 0,
+ .master_id = 0,
+ },
+};
+
static void __init mx28evk_init(void)
{
int ret;
@@ -454,8 +467,9 @@ static void __init mx28evk_init(void)
else
mx28_add_mxsfb(&mx28evk_mxsfb_pdata);
- mx28_add_saif(0);
- mx28_add_saif(1);
+ mxs_saif_clkmux_select(MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR0);
+ mx28_add_saif(0, &mx28evk_mxs_saif_pdata[0]);
+ mx28_add_saif(1, &mx28evk_mxs_saif_pdata[1]);
mx28_add_mxs_i2c(0);
i2c_register_board_info(0, mxs_i2c0_board_info,
@@ -501,4 +515,5 @@ MACHINE_START(MX28EVK, "Freescale MX28 EVK")
.init_irq = mx28_init_irq,
.timer = &mx28evk_timer,
.init_machine = mx28evk_init,
+ .restart = mxs_restart,
MACHINE_END
diff --git a/arch/arm/mach-mxs/mach-stmp378x_devb.c b/arch/arm/mach-mxs/mach-stmp378x_devb.c
index 6834dea38c0..a626c07b871 100644
--- a/arch/arm/mach-mxs/mach-stmp378x_devb.c
+++ b/arch/arm/mach-mxs/mach-stmp378x_devb.c
@@ -117,4 +117,5 @@ MACHINE_START(STMP378X, "STMP378X")
.init_irq = mx23_init_irq,
.timer = &stmp378x_dvb_timer,
.init_machine = stmp378x_dvb_init,
+ .restart = mxs_restart,
MACHINE_END
diff --git a/arch/arm/mach-mxs/mach-tx28.c b/arch/arm/mach-mxs/mach-tx28.c
index 9a1f0e7a338..2c0862e655e 100644
--- a/arch/arm/mach-mxs/mach-tx28.c
+++ b/arch/arm/mach-mxs/mach-tx28.c
@@ -178,4 +178,5 @@ MACHINE_START(TX28, "Ka-Ro electronics TX28 module")
.init_irq = mx28_init_irq,
.timer = &tx28_timer,
.init_machine = tx28_stk5v3_init,
+ .restart = mxs_restart,
MACHINE_END
diff --git a/arch/arm/mach-mxs/system.c b/arch/arm/mach-mxs/system.c
index 20ec3bddf7c..54f91ad1c96 100644
--- a/arch/arm/mach-mxs/system.c
+++ b/arch/arm/mach-mxs/system.c
@@ -42,7 +42,7 @@ static void __iomem *mxs_clkctrl_reset_addr;
/*
* Reset the system. It is called by machine_restart().
*/
-void arch_reset(char mode, const char *cmd)
+void mxs_restart(char mode, const char *cmd)
{
/* reset the chip */
__mxs_setl(MXS_CLKCTRL_RESET_CHIP, mxs_clkctrl_reset_addr);
@@ -53,7 +53,7 @@ void arch_reset(char mode, const char *cmd)
mdelay(50);
/* We'll take a jump through zero as a poor second */
- cpu_reset(0);
+ soft_restart(0);
}
static int __init mxs_arch_reset_init(void)
@@ -66,7 +66,7 @@ static int __init mxs_arch_reset_init(void)
clk = clk_get_sys("rtc", NULL);
if (!IS_ERR(clk))
- clk_enable(clk);
+ clk_prepare_enable(clk);
return 0;
}
diff --git a/arch/arm/mach-mxs/timer.c b/arch/arm/mach-mxs/timer.c
index cace0d2e5a5..564a63279f1 100644
--- a/arch/arm/mach-mxs/timer.c
+++ b/arch/arm/mach-mxs/timer.c
@@ -245,7 +245,7 @@ static int __init mxs_clocksource_init(struct clk *timer_clk)
void __init mxs_timer_init(struct clk *timer_clk, int irq)
{
- clk_enable(timer_clk);
+ clk_prepare_enable(timer_clk);
/*
* Initialize timers to a known state
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-26 23:45:42 +0000