Commit bea8bcb1 authored by Steven King's avatar Steven King Committed by Greg Ungerer
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m68knommu: Add support for the Coldfire m5441x.



Add support for the Coldfire 5441x (54410/54415/54416/54417/54418).  Currently
we only support noMMU mode.  It requires the PIT patch posted previously as it
uses the PIT instead of the dma timer as a clock source so we can get all that
GENERIC_CLOCKEVENTS goodness.  It also adds some simple clk definitions and
very simple minded power management.  The gpio code is tweeked and some
additional devices are added to devices.c.  The Makefile uses -mv4e as
apparently, the only difference a v4m (m5441x) and a v4e is the later has a
FPU, which I don't think should matter to us in the kernel.
Signed-off-by: default avatarSteven King <sfking@fdwdc.com>
Signed-off-by: default avatarGreg Ungerer <gerg@uclinux.org>
parent bdee4e26
......@@ -261,6 +261,14 @@ config M548x
help
Freescale ColdFire 5480/5481/5482/5483/5484/5485 processor support.
config M5441x
bool "MCF5441x"
depends on !MMU
select GENERIC_CLOCKEVENTS
select HAVE_CACHE_CB
help
Freescale Coldfire 54410/54415/54416/54417/54418 processor support.
endif # COLDFIRE
......
......@@ -41,6 +41,7 @@ cpuflags-$(CONFIG_M68030) :=
cpuflags-$(CONFIG_M68020) :=
cpuflags-$(CONFIG_M68360) := -m68332
cpuflags-$(CONFIG_M68000) := -m68000
cpuflags-$(CONFIG_M5441x) := $(call cc-option,-mcpu=54455,-mcfv4e)
cpuflags-$(CONFIG_M54xx) := $(call cc-option,-mcpu=5475,-m5200)
cpuflags-$(CONFIG_M5407) := $(call cc-option,-mcpu=5407,-m5200)
cpuflags-$(CONFIG_M532x) := $(call cc-option,-mcpu=532x,-m5307)
......
......@@ -64,8 +64,14 @@ static inline void gpio_set_value(unsigned gpio, int value)
static inline int gpio_to_irq(unsigned gpio)
{
return (gpio < MCFGPIO_IRQ_MAX) ? gpio + MCFGPIO_IRQ_VECBASE
: __gpio_to_irq(gpio);
#if defined(MCFGPIO_IRQ_MIN)
if ((gpio >= MCFGPIO_IRQ_MIN) && (gpio < MCFGPIO_IRQ_MAX))
#else
if (gpio < MCFGPIO_IRQ_MAX)
#endif
return gpio + MCFGPIO_IRQ_VECBASE;
else
return __gpio_to_irq(gpio);
}
static inline int irq_to_gpio(unsigned irq)
......
/*
* m5441xsim.h -- Coldfire 5441x register definitions
*
* (C) Copyright 2012, Steven King <sfking@fdwdc.com>
*/
#ifndef m5441xsim_h
#define m5441xsim_h
#define CPU_NAME "COLDFIRE(m5441x)"
#define CPU_INSTR_PER_JIFFY 2
#define MCF_BUSCLK (MCF_CLK / 2)
#include <asm/m54xxacr.h>
/*
* Reset Controller Module.
*/
#define MCF_RCR 0xec090000
#define MCF_RSR 0xec090001
#define MCF_RCR_SWRESET 0x80 /* Software reset bit */
#define MCF_RCR_FRCSTOUT 0x40 /* Force external reset */
/*
* Interrupt Controller Modules.
*/
/* the 5441x have 3 interrupt controllers, each control 64 interrupts */
#define MCFINT_VECBASE 64
#define MCFINT0_VECBASE MCFINT_VECBASE
#define MCFINT1_VECBASE (MCFINT0_VECBASE + 64)
#define MCFINT2_VECBASE (MCFINT1_VECBASE + 64)
/* interrupt controller 0 */
#define MCFINTC0_SIMR 0xfc04801c
#define MCFINTC0_CIMR 0xfc04801d
#define MCFINTC0_ICR0 0xfc048040
/* interrupt controller 1 */
#define MCFINTC1_SIMR 0xfc04c01c
#define MCFINTC1_CIMR 0xfc04c01d
#define MCFINTC1_ICR0 0xfc04c040
/* interrupt controller 2 */
#define MCFINTC2_SIMR 0xfc05001c
#define MCFINTC2_CIMR 0xfc05001d
#define MCFINTC2_ICR0 0xfc050040
/* on interrupt controller 0 */
#define MCFINT0_EPORT0 1
#define MCFINT0_UART0 26
#define MCFINT0_UART1 27
#define MCFINT0_UART2 28
#define MCFINT0_UART3 29
#define MCFINT0_I2C0 30
#define MCFINT0_DSPI0 31
#define MCFINT0_TIMER0 32
#define MCFINT0_TIMER1 33
#define MCFINT0_TIMER2 34
#define MCFINT0_TIMER3 35
#define MCFINT0_FECRX0 36
#define MCFINT0_FECTX0 40
#define MCFINT0_FECENTC0 42
#define MCFINT0_FECRX1 49
#define MCFINT0_FECTX1 53
#define MCFINT0_FECENTC1 55
/* on interrupt controller 1 */
#define MCFINT1_UART4 48
#define MCFINT1_UART5 49
#define MCFINT1_UART6 50
#define MCFINT1_UART7 51
#define MCFINT1_UART8 52
#define MCFINT1_UART9 53
#define MCFINT1_DSPI1 54
#define MCFINT1_DSPI2 55
#define MCFINT1_DSPI3 56
#define MCFINT1_I2C1 57
#define MCFINT1_I2C2 58
#define MCFINT1_I2C3 59
#define MCFINT1_I2C4 60
#define MCFINT1_I2C5 61
/* on interrupt controller 2 */
#define MCFINT2_PIT0 13
#define MCFINT2_PIT1 14
#define MCFINT2_PIT2 15
#define MCFINT2_PIT3 16
#define MCFINT2_RTC 26
/*
* PIT timer module.
*/
#define MCFPIT_BASE0 0xFC080000 /* Base address of TIMER0 */
#define MCFPIT_BASE1 0xFC084000 /* Base address of TIMER1 */
#define MCFPIT_BASE2 0xFC088000 /* Base address of TIMER2 */
#define MCFPIT_BASE3 0xFC08C000 /* Base address of TIMER3 */
#define MCF_IRQ_PIT1 (MCFINT2_VECBASE + MCFINT2_PIT1)
/*
* Power Management
*/
#define MCFPM_WCR 0xfc040013
#define MCFPM_PPMSR0 0xfc04002c
#define MCFPM_PPMCR0 0xfc04002d
#define MCFPM_PPMSR1 0xfc04002e
#define MCFPM_PPMCR1 0xfc04002f
#define MCFPM_PPMHR0 0xfc040030
#define MCFPM_PPMLR0 0xfc040034
#define MCFPM_PPMHR1 0xfc040038
#define MCFPM_PPMLR1 0xfc04003c
#define MCFPM_LPCR 0xec090007
/*
* UART module.
*/
#define MCFUART_BASE0 0xfc060000 /* Base address of UART0 */
#define MCFUART_BASE1 0xfc064000 /* Base address of UART1 */
#define MCFUART_BASE2 0xfc068000 /* Base address of UART2 */
#define MCFUART_BASE3 0xfc06c000 /* Base address of UART3 */
#define MCFUART_BASE4 0xec060000 /* Base address of UART4 */
#define MCFUART_BASE5 0xec064000 /* Base address of UART5 */
#define MCFUART_BASE6 0xec068000 /* Base address of UART6 */
#define MCFUART_BASE7 0xec06c000 /* Base address of UART7 */
#define MCFUART_BASE8 0xec070000 /* Base address of UART8 */
#define MCFUART_BASE9 0xec074000 /* Base address of UART9 */
#define MCF_IRQ_UART0 (MCFINT0_VECBASE + MCFINT0_UART0)
#define MCF_IRQ_UART1 (MCFINT0_VECBASE + MCFINT0_UART1)
#define MCF_IRQ_UART2 (MCFINT0_VECBASE + MCFINT0_UART2)
#define MCF_IRQ_UART3 (MCFINT0_VECBASE + MCFINT0_UART3)
#define MCF_IRQ_UART4 (MCFINT1_VECBASE + MCFINT1_UART4)
#define MCF_IRQ_UART5 (MCFINT1_VECBASE + MCFINT1_UART5)
#define MCF_IRQ_UART6 (MCFINT1_VECBASE + MCFINT1_UART6)
#define MCF_IRQ_UART7 (MCFINT1_VECBASE + MCFINT1_UART7)
#define MCF_IRQ_UART8 (MCFINT1_VECBASE + MCFINT1_UART8)
#define MCF_IRQ_UART9 (MCFINT1_VECBASE + MCFINT1_UART9)
/*
* FEC modules.
*/
#define MCFFEC_BASE0 0xfc0d4000
#define MCFFEC_SIZE0 0x800
#define MCF_IRQ_FECRX0 (MCFINT0_VECBASE + MCFINT0_FECRX0)
#define MCF_IRQ_FECTX0 (MCFINT0_VECBASE + MCFINT0_FECTX0)
#define MCF_IRQ_FECENTC0 (MCFINT0_VECBASE + MCFINT0_FECENTC0)
#define MCFFEC_BASE1 0xfc0d8000
#define MCFFEC_SIZE1 0x800
#define MCF_IRQ_FECRX1 (MCFINT0_VECBASE + MCFINT0_FECRX1)
#define MCF_IRQ_FECTX1 (MCFINT0_VECBASE + MCFINT0_FECTX1)
#define MCF_IRQ_FECENTC1 (MCFINT0_VECBASE + MCFINT0_FECENTC1)
/*
* I2C modules.
*/
#define MCFI2C_BASE0 0xfc058000
#define MCFI2C_SIZE0 0x20
#define MCFI2C_BASE1 0xfc038000
#define MCFI2C_SIZE1 0x20
#define MCFI2C_BASE2 0xec010000
#define MCFI2C_SIZE2 0x20
#define MCFI2C_BASE3 0xec014000
#define MCFI2C_SIZE3 0x20
#define MCFI2C_BASE4 0xec018000
#define MCFI2C_SIZE4 0x20
#define MCFI2C_BASE5 0xec01c000
#define MCFI2C_SIZE5 0x20
#define MCF_IRQ_I2C0 (MCFINT0_VECBASE + MCFINT0_I2C0)
#define MCF_IRQ_I2C1 (MCFINT1_VECBASE + MCFINT1_I2C1)
#define MCF_IRQ_I2C2 (MCFINT1_VECBASE + MCFINT1_I2C2)
#define MCF_IRQ_I2C3 (MCFINT1_VECBASE + MCFINT1_I2C3)
#define MCF_IRQ_I2C4 (MCFINT1_VECBASE + MCFINT1_I2C4)
#define MCF_IRQ_I2C5 (MCFINT1_VECBASE + MCFINT1_I2C5)
/*
* EPORT Module.
*/
#define MCFEPORT_EPPAR 0xfc090000
#define MCFEPORT_EPIER 0xfc090003
#define MCFEPORT_EPFR 0xfc090006
/*
* GPIO Module.
*/
#define MCFGPIO_PODR_A 0xec094000
#define MCFGPIO_PODR_B 0xec094001
#define MCFGPIO_PODR_C 0xec094002
#define MCFGPIO_PODR_D 0xec094003
#define MCFGPIO_PODR_E 0xec094004
#define MCFGPIO_PODR_F 0xec094005
#define MCFGPIO_PODR_G 0xec094006
#define MCFGPIO_PODR_H 0xec094007
#define MCFGPIO_PODR_I 0xec094008
#define MCFGPIO_PODR_J 0xec094009
#define MCFGPIO_PODR_K 0xec09400a
#define MCFGPIO_PDDR_A 0xec09400c
#define MCFGPIO_PDDR_B 0xec09400d
#define MCFGPIO_PDDR_C 0xec09400e
#define MCFGPIO_PDDR_D 0xec09400f
#define MCFGPIO_PDDR_E 0xec094010
#define MCFGPIO_PDDR_F 0xec094011
#define MCFGPIO_PDDR_G 0xec094012
#define MCFGPIO_PDDR_H 0xec094013
#define MCFGPIO_PDDR_I 0xec094014
#define MCFGPIO_PDDR_J 0xec094015
#define MCFGPIO_PDDR_K 0xec094016
#define MCFGPIO_PPDSDR_A 0xec094018
#define MCFGPIO_PPDSDR_B 0xec094019
#define MCFGPIO_PPDSDR_C 0xec09401a
#define MCFGPIO_PPDSDR_D 0xec09401b
#define MCFGPIO_PPDSDR_E 0xec09401c
#define MCFGPIO_PPDSDR_F 0xec09401d
#define MCFGPIO_PPDSDR_G 0xec09401e
#define MCFGPIO_PPDSDR_H 0xec09401f
#define MCFGPIO_PPDSDR_I 0xec094020
#define MCFGPIO_PPDSDR_J 0xec094021
#define MCFGPIO_PPDSDR_K 0xec094022
#define MCFGPIO_PCLRR_A 0xec094024
#define MCFGPIO_PCLRR_B 0xec094025
#define MCFGPIO_PCLRR_C 0xec094026
#define MCFGPIO_PCLRR_D 0xec094027
#define MCFGPIO_PCLRR_E 0xec094028
#define MCFGPIO_PCLRR_F 0xec094029
#define MCFGPIO_PCLRR_G 0xec09402a
#define MCFGPIO_PCLRR_H 0xec09402b
#define MCFGPIO_PCLRR_I 0xec09402c
#define MCFGPIO_PCLRR_J 0xec09402d
#define MCFGPIO_PCLRR_K 0xec09402e
#define MCFGPIO_PAR_FBCTL 0xec094048
#define MCFGPIO_PAR_BE 0xec094049
#define MCFGPIO_PAR_CS 0xec09404a
#define MCFGPIO_PAR_CANI2C 0xec09404b
#define MCFGPIO_PAR_IRQ0H 0xec09404c
#define MCFGPIO_PAR_IRQ0L 0xec09404d
#define MCFGPIO_PAR_DSPIOWH 0xec09404e
#define MCFGPIO_PAR_DSPIOWL 0xec09404f
#define MCFGPIO_PAR_TIMER 0xec094050
#define MCFGPIO_PAR_UART2 0xec094051
#define MCFGPIO_PAR_UART1 0xec094052
#define MCFGPIO_PAR_UART0 0xec094053
#define MCFGPIO_PAR_SDHCH 0xec094054
#define MCFGPIO_PAR_SDHCL 0xec094055
#define MCFGPIO_PAR_SIMP0H 0xec094056
#define MCFGPIO_PAR_SIMP0L 0xec094057
#define MCFGPIO_PAR_SSI0H 0xec094058
#define MCFGPIO_PAR_SSI0L 0xec094059
#define MCFGPIO_PAR_DEBUGH1 0xec09405a
#define MCFGPIO_PAR_DEBUGH0 0xec09405b
#define MCFGPIO_PAR_DEBUGl 0xec09405c
#define MCFGPIO_PAR_FEC 0xec09405e
/* generalization for generic gpio support */
#define MCFGPIO_PODR MCFGPIO_PODR_A
#define MCFGPIO_PDDR MCFGPIO_PDDR_A
#define MCFGPIO_PPDR MCFGPIO_PPDSDR_A
#define MCFGPIO_SETR MCFGPIO_PPDSDR_A
#define MCFGPIO_CLRR MCFGPIO_PCLRR_A
#define MCFGPIO_IRQ_MIN 17
#define MCFGPIO_IRQ_MAX 24
#define MCFGPIO_IRQ_VECBASE (MCFINT_VECBASE - MCFGPIO_IRQ_MIN)
#define MCFGPIO_PIN_MAX 87
#endif /* m5441xsim_h */
......@@ -55,6 +55,10 @@
#define ICACHE_SIZE 0x8000 /* instruction - 32k */
#define DCACHE_SIZE 0x8000 /* data - 32k */
#elif defined(CONFIG_M5441x)
#define ICACHE_SIZE 0x2000 /* instruction - 8k */
#define DCACHE_SIZE 0x2000 /* data - 8k */
#endif
#define CACHE_LINE_SIZE 0x0010 /* 16 bytes */
......
/*
* mcfclk.h -- coldfire specific clock structure
*/
#ifndef mcfclk_h
#define mcfclk_h
struct clk;
#ifdef MCFPM_PPMCR0
struct clk_ops {
void (*enable)(struct clk *);
void (*disable)(struct clk *);
};
struct clk {
const char *name;
struct clk_ops *clk_ops;
unsigned long rate;
unsigned long enabled;
u8 slot;
};
extern struct clk *mcf_clks[];
extern struct clk_ops clk_ops0;
#ifdef MCFPM_PPMCR1
extern struct clk_ops clk_ops1;
#endif /* MCFPM_PPMCR1 */
#define DEFINE_CLK(clk_bank, clk_name, clk_slot, clk_rate) \
static struct clk __clk_##clk_bank##_##clk_slot = { \
.name = clk_name, \
.clk_ops = &clk_ops##clk_bank, \
.rate = clk_rate, \
.slot = clk_slot, \
}
void __clk_init_enabled(struct clk *);
void __clk_init_disabled(struct clk *);
#endif /* MCFPM_PPMCR0 */
#endif /* mcfclk_h */
......@@ -104,7 +104,8 @@ static inline void gpio_free(unsigned gpio)
#if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \
defined(CONFIG_M520x) || defined(CONFIG_M523x) || \
defined(CONFIG_M527x) || defined(CONFIG_M528x) || \
defined(CONFIG_M532x) || defined(CONFIG_M54xx)
defined(CONFIG_M532x) || defined(CONFIG_M54xx) || \
defined(CONFIG_M5441x)
/* These parts have GPIO organized by 8 bit ports */
......@@ -137,7 +138,8 @@ static inline void gpio_free(unsigned gpio)
#define mcfgpio_port(gpio) ((gpio) / MCFGPIO_PORTSIZE)
#if defined(CONFIG_M520x) || defined(CONFIG_M523x) || \
defined(CONFIG_M527x) || defined(CONFIG_M528x) || defined(CONFIG_M532x)
defined(CONFIG_M527x) || defined(CONFIG_M528x) || \
defined(CONFIG_M532x) || defined(CONFIG_M5441x)
/*
* These parts have an 'Edge' Port module (external interrupt/GPIO) which uses
* read-modify-write to change an output and a GPIO module which has separate
......@@ -149,6 +151,9 @@ static inline void gpio_free(unsigned gpio)
* read-modify-write as well as those controlled by the EPORT and GPIO modules.
*/
#define MCFGPIO_SCR_START 40
#elif defined(CONFIGM5441x)
/* The m5441x EPORT doesn't have its own GPIO port, uses PORT C */
#define MCFGPIO_SCR_START 0
#else
#define MCFGPIO_SCR_START 8
#endif
......@@ -189,7 +194,9 @@ static inline u32 __mcfgpio_ppdr(unsigned gpio)
else
return MCFSIM2_GPIO1READ;
#elif defined(CONFIG_M520x) || defined(CONFIG_M523x) || \
defined(CONFIG_M527x) || defined(CONFIG_M528x) || defined(CONFIG_M532x)
defined(CONFIG_M527x) || defined(CONFIG_M528x) || \
defined(CONFIG_M532x) || defined(CONFIG_M5441x)
#if !defined(CONFIG_M5441x)
if (gpio < 8)
return MCFEPORT_EPPDR;
#if defined(CONFIG_M528x)
......@@ -201,8 +208,9 @@ static inline u32 __mcfgpio_ppdr(unsigned gpio)
return MCFQADC_PORTQA;
else if (gpio < 40)
return MCFQADC_PORTQB;
#endif
#endif /* defined(CONFIG_M528x) */
else
#endif /* !defined(CONFIG_M5441x) */
return MCFGPIO_PPDR + mcfgpio_port(gpio - MCFGPIO_SCR_START);
#else
return 0;
......@@ -228,7 +236,9 @@ static inline u32 __mcfgpio_podr(unsigned gpio)
else
return MCFSIM2_GPIO1WRITE;
#elif defined(CONFIG_M520x) || defined(CONFIG_M523x) || \
defined(CONFIG_M527x) || defined(CONFIG_M528x) || defined(CONFIG_M532x)
defined(CONFIG_M527x) || defined(CONFIG_M528x) || \
defined(CONFIG_M532x) || defined(CONFIG_M5441x)
#if !defined(CONFIG_M5441x)
if (gpio < 8)
return MCFEPORT_EPDR;
#if defined(CONFIG_M528x)
......@@ -240,8 +250,9 @@ static inline u32 __mcfgpio_podr(unsigned gpio)
return MCFQADC_PORTQA;
else if (gpio < 40)
return MCFQADC_PORTQB;
#endif
#endif /* defined(CONFIG_M528x) */
else
#endif /* !defined(CONFIG_M5441x) */
return MCFGPIO_PODR + mcfgpio_port(gpio - MCFGPIO_SCR_START);
#else
return 0;
......@@ -267,7 +278,9 @@ static inline u32 __mcfgpio_pddr(unsigned gpio)
else
return MCFSIM2_GPIO1ENABLE;
#elif defined(CONFIG_M520x) || defined(CONFIG_M523x) || \
defined(CONFIG_M527x) || defined(CONFIG_M528x) || defined(CONFIG_M532x)
defined(CONFIG_M527x) || defined(CONFIG_M528x) || \
defined(CONFIG_M532x) || defined(CONFIG_M5441x)
#if !defined(CONFIG_M5441x)
if (gpio < 8)
return MCFEPORT_EPDDR;
#if defined(CONFIG_M528x)
......@@ -279,8 +292,9 @@ static inline u32 __mcfgpio_pddr(unsigned gpio)
return MCFQADC_DDRQA;
else if (gpio < 40)
return MCFQADC_DDRQB;
#endif
#endif /* defined(CONFIG_M528x) */
else
#endif /* !defined(CONFIG_M5441x) */
return MCFGPIO_PDDR + mcfgpio_port(gpio - MCFGPIO_SCR_START);
#else
return 0;
......
......@@ -46,6 +46,8 @@
#include <asm/mcfintc.h>
#elif defined(CONFIG_M54xx)
#include <asm/m54xxsim.h>
#elif defined(CONFIG_M5441x)
#include <asm/m5441xsim.h>
#endif
/****************************************************************************/
......
......@@ -19,7 +19,7 @@
#define MCFTIMER_TRR 0x04 /* Timer Reference (r/w) */
#define MCFTIMER_TCR 0x08 /* Timer Capture reg (r/w) */
#define MCFTIMER_TCN 0x0C /* Timer Counter reg (r/w) */
#if defined(CONFIG_M532x)
#if defined(CONFIG_M532x) || defined(CONFIG_M5441x)
#define MCFTIMER_TER 0x03 /* Timer Event reg (r/w) */
#else
#define MCFTIMER_TER 0x11 /* Timer Event reg (r/w) */
......
......@@ -28,6 +28,7 @@ obj-$(CONFIG_M5307) += m5307.o timers.o intc.o reset.o
obj-$(CONFIG_M532x) += m532x.o timers.o intc-simr.o reset.o
obj-$(CONFIG_M5407) += m5407.o timers.o intc.o reset.o
obj-$(CONFIG_M54xx) += m54xx.o sltimers.o intc-2.o
obj-$(CONFIG_M5441x) += m5441x.o pit.o intc-simr.o reset.o
obj-$(CONFIG_NETtel) += nettel.o
obj-$(CONFIG_CLEOPATRA) += nettel.o
......
......@@ -10,11 +10,17 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/mutex.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/err.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfclk.h>
/***************************************************************************/
#ifndef MCFPM_PPMCR0
struct clk *clk_get(struct device *dev, const char *id)
{
return NULL;
......@@ -49,4 +55,101 @@ struct clk *devm_clk_get(struct device *dev, const char *id)
}
EXPORT_SYMBOL(devm_clk_get);
#else
static DEFINE_SPINLOCK(clk_lock);
struct clk *clk_get(struct device *dev, const char *id)
{
const char *clk_name = dev ? dev_name(dev) : id ? id : NULL;
struct clk *clk;
unsigned i;
for (i = 0; (clk = mcf_clks[i]) != NULL; ++i)
if (!strcmp(clk->name, clk_name))
return clk;
pr_warn("clk_get: didn't find clock %s\n", clk_name);
return ERR_PTR(-ENOENT);
}
EXPORT_SYMBOL(clk_get);
int clk_enable(struct clk *clk)
{
unsigned long flags;
spin_lock_irqsave(&clk_lock, flags);
if ((clk->enabled++ == 0) && clk->clk_ops)
clk->clk_ops->enable(clk);
spin_unlock_irqrestore(&clk_lock, flags);
return 0;
}
EXPORT_SYMBOL(clk_enable);
void clk_disable(struct clk *clk)
{
unsigned long flags;
spin_lock_irqsave(&clk_lock, flags);
if ((--clk->enabled == 0) && clk->clk_ops)
clk->clk_ops->disable(clk);
spin_unlock_irqrestore(&clk_lock, flags);
}
EXPORT_SYMBOL(clk_disable);
void clk_put(struct clk *clk)
{
if (clk->enabled != 0)
pr_warn("clk_put %s still enabled\n", clk->name);
}
EXPORT_SYMBOL(clk_put);
unsigned long clk_get_rate(struct clk *clk)
{
return clk->rate;
}
EXPORT_SYMBOL(clk_get_rate);
/***************************************************************************/
void __clk_init_enabled(struct clk *clk)
{
clk->enabled = 1;
clk->clk_ops->enable(clk);
}
void __clk_init_disabled(struct clk *clk)
{
clk->enabled = 0;
clk->clk_ops->disable(clk);
}
static void __clk_enable0(struct clk *clk)
{
__raw_writeb(clk->slot, MCFPM_PPMCR0);
}
static void __clk_disable0(struct clk *clk)
{
__raw_writeb(clk->slot, MCFPM_PPMSR0);
}
struct clk_ops clk_ops0 = {
.enable = __clk_enable0,
.disable = __clk_disable0,
};
#ifdef MCFPM_PPMCR1
static void __clk_enable1(struct clk *clk)
{
__raw_writeb(clk->slot, MCFPM_PPMCR1);
}
static void __clk_disable1(struct clk *clk)
{
__raw_writeb(clk->slot, MCFPM_PPMSR1);
}
struct clk_ops clk_ops1 = {
.enable = __clk_enable1,
.disable = __clk_disable1,
};
#endif /* MCFPM_PPMCR1 */
#endif /* MCFPM_PPMCR0 */
......@@ -13,6 +13,7 @@
#include <linux/io.h>
#include <linux/spi/spi.h>
#include <linux/gpio.h>
#include <linux/fec.h>
#include <asm/traps.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
......@@ -20,7 +21,7 @@
#include <asm/mcfqspi.h>
/*
* All current ColdFire parts contain from 2, 3 or 4 UARTS.
* All current ColdFire parts contain from 2, 3, 4 or 10 UARTS.
*/
static struct mcf_platform_uart mcf_uart_platform_data[] = {
{
......@@ -42,6 +43,42 @@ static struct mcf_platform_uart mcf_uart_platform_data[] = {
.mapbase = MCFUART_BASE3,
.irq = MCF_IRQ_UART3,
},
#endif
#ifdef MCFUART_BASE4
{
.mapbase = MCFUART_BASE4,