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m68knommu: Coldfire QSPI platform support 

Since Grant has added the coldfire-qspi driver to next-spi, here is the
platform support for the parts that have qspi hardware.  This sets up
gpio to do the spi chip select using the default chip select pins; it should
be trivial for boards that require different or additional spi chip selects to
use other gpios as needed.

Signed-off-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
This commit is contained in:
Steven King 2010-01-22 12:43:03 -08:00 committed by Greg Ungerer
parent e40152ee1e
commit 91d6041721
13 changed files with 1010 additions and 66 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/m68k/include/asm/m520xsim.h
View File

@ -113,6 +113,7 @@
#define MCF_GPIO_PAR_UART (0xA4036)
#define MCF_GPIO_PAR_FECI2C (0xA4033)
#define MCF_GPIO_PAR_QSPI (0xA4034)
#define MCF_GPIO_PAR_FEC (0xA4038)
#define MCF_GPIO_PAR_UART_PAR_URXD0 (0x0001)

5
arch/m68k/include/asm/m523xsim.h
View File

@ -127,5 +127,10 @@
#define MCFGPIO_IRQ_MAX 8
#define MCFGPIO_IRQ_VECBASE MCFINT_VECBASE
/*
* Pin Assignment
*/
#define MCFGPIO_PAR_QSPI (MCF_IPSBAR + 0x10004A)
#define MCFGPIO_PAR_TIMER (MCF_IPSBAR + 0x10004C)
/****************************************************************************/
#endif /* m523xsim_h */

2
arch/m68k/include/asm/m5249sim.h
View File

@ -69,10 +69,12 @@
#define MCFSIM_DMA1ICR MCFSIM_ICR7 /* DMA 1 ICR */
#define MCFSIM_DMA2ICR MCFSIM_ICR8 /* DMA 2 ICR */
#define MCFSIM_DMA3ICR MCFSIM_ICR9 /* DMA 3 ICR */
#define MCFSIM_QSPIICR MCFSIM_ICR10 /* QSPI ICR */
/*
* Define system peripheral IRQ usage.
*/
#define MCF_IRQ_QSPI 28 /* QSPI, Level 4 */
#define MCF_IRQ_TIMER 30 /* Timer0, Level 6 */
#define MCF_IRQ_PROFILER 31 /* Timer1, Level 7 */

7
arch/m68k/include/asm/m527xsim.h
View File

@ -31,6 +31,7 @@
#define MCFINT_UART0 13 /* Interrupt number for UART0 */
#define MCFINT_UART1 14 /* Interrupt number for UART1 */
#define MCFINT_UART2 15 /* Interrupt number for UART2 */
#define MCFINT_QSPI 18 /* Interrupt number for QSPI */
#define MCFINT_PIT1 36 /* Interrupt number for PIT1 */
/*
@ -120,6 +121,9 @@
#define MCFGPIO_PIN_MAX 100
#define MCFGPIO_IRQ_MAX 8
#define MCFGPIO_IRQ_VECBASE MCFINT_VECBASE
#define MCFGPIO_PAR_QSPI (MCF_IPSBAR + 0x10004A)
#define MCFGPIO_PAR_TIMER (MCF_IPSBAR + 0x10004C)
#endif
#ifdef CONFIG_M5275
@ -212,6 +216,8 @@
#define MCFGPIO_PIN_MAX 148
#define MCFGPIO_IRQ_MAX 8
#define MCFGPIO_IRQ_VECBASE MCFINT_VECBASE
#define MCFGPIO_PAR_QSPI (MCF_IPSBAR + 0x10007E)
#endif
/*
@ -223,6 +229,7 @@
#define MCFEPORT_EPPDR (MCF_IPSBAR + 0x130005)
/*
* GPIO pins setups to enable the UARTs.
*/

67
arch/m68k/include/asm/m528xsim.h
View File

@ -29,6 +29,7 @@
#define MCFINT_VECBASE 64 /* Vector base number */
#define MCFINT_UART0 13 /* Interrupt number for UART0 */
#define MCFINT_QSPI 18 /* Interrupt number for QSPI */
#define MCFINT_PIT1 55 /* Interrupt number for PIT1 */
/*
@ -249,70 +250,4 @@
#define MCF5282_I2C_I2SR_RXAK (0x01) // received acknowledge
/*********************************************************************
*
* Queued Serial Peripheral Interface (QSPI) Module
*
*********************************************************************/
/* Derek - 21 Feb 2005 */
/* change to the format used in I2C */
/* Read/Write access macros for general use */
#define MCF5282_QSPI_QMR MCF_IPSBAR + 0x0340
#define MCF5282_QSPI_QDLYR MCF_IPSBAR + 0x0344
#define MCF5282_QSPI_QWR MCF_IPSBAR + 0x0348
#define MCF5282_QSPI_QIR MCF_IPSBAR + 0x034C
#define MCF5282_QSPI_QAR MCF_IPSBAR + 0x0350
#define MCF5282_QSPI_QDR MCF_IPSBAR + 0x0354
#define MCF5282_QSPI_QCR MCF_IPSBAR + 0x0354
/* Bit level definitions and macros */
#define MCF5282_QSPI_QMR_MSTR (0x8000)
#define MCF5282_QSPI_QMR_DOHIE (0x4000)
#define MCF5282_QSPI_QMR_BITS_16 (0x0000)
#define MCF5282_QSPI_QMR_BITS_8 (0x2000)
#define MCF5282_QSPI_QMR_BITS_9 (0x2400)
#define MCF5282_QSPI_QMR_BITS_10 (0x2800)
#define MCF5282_QSPI_QMR_BITS_11 (0x2C00)
#define MCF5282_QSPI_QMR_BITS_12 (0x3000)
#define MCF5282_QSPI_QMR_BITS_13 (0x3400)
#define MCF5282_QSPI_QMR_BITS_14 (0x3800)
#define MCF5282_QSPI_QMR_BITS_15 (0x3C00)
#define MCF5282_QSPI_QMR_CPOL (0x0200)
#define MCF5282_QSPI_QMR_CPHA (0x0100)
#define MCF5282_QSPI_QMR_BAUD(x) (((x)&0x00FF))
#define MCF5282_QSPI_QDLYR_SPE (0x80)
#define MCF5282_QSPI_QDLYR_QCD(x) (((x)&0x007F)<<8)
#define MCF5282_QSPI_QDLYR_DTL(x) (((x)&0x00FF))
#define MCF5282_QSPI_QWR_HALT (0x8000)
#define MCF5282_QSPI_QWR_WREN (0x4000)
#define MCF5282_QSPI_QWR_WRTO (0x2000)
#define MCF5282_QSPI_QWR_CSIV (0x1000)
#define MCF5282_QSPI_QWR_ENDQP(x) (((x)&0x000F)<<8)
#define MCF5282_QSPI_QWR_CPTQP(x) (((x)&0x000F)<<4)
#define MCF5282_QSPI_QWR_NEWQP(x) (((x)&0x000F))
#define MCF5282_QSPI_QIR_WCEFB (0x8000)
#define MCF5282_QSPI_QIR_ABRTB (0x4000)
#define MCF5282_QSPI_QIR_ABRTL (0x1000)
#define MCF5282_QSPI_QIR_WCEFE (0x0800)
#define MCF5282_QSPI_QIR_ABRTE (0x0400)
#define MCF5282_QSPI_QIR_SPIFE (0x0100)
#define MCF5282_QSPI_QIR_WCEF (0x0008)
#define MCF5282_QSPI_QIR_ABRT (0x0004)
#define MCF5282_QSPI_QIR_SPIF (0x0001)
#define MCF5282_QSPI_QAR_ADDR(x) (((x)&0x003F))
#define MCF5282_QSPI_QDR_COMMAND(x) (((x)&0xFF00))
#define MCF5282_QSPI_QCR_DATA(x) (((x)&0x00FF)<<8)
#define MCF5282_QSPI_QCR_CONT (0x8000)
#define MCF5282_QSPI_QCR_BITSE (0x4000)
#define MCF5282_QSPI_QCR_DT (0x2000)
#define MCF5282_QSPI_QCR_DSCK (0x1000)
#define MCF5282_QSPI_QCR_CS (((x)&0x000F)<<8)
/****************************************************************************/
#endif /* m528xsim_h */

1
arch/m68k/include/asm/m532xsim.h
View File

@ -17,6 +17,7 @@
#define MCFINT_UART0 26 /* Interrupt number for UART0 */
#define MCFINT_UART1 27 /* Interrupt number for UART1 */
#define MCFINT_UART2 28 /* Interrupt number for UART2 */
#define MCFINT_QSPI 31 /* Interrupt number for QSPI */
#define MCF_WTM_WCR MCF_REG16(0xFC098000)

64
arch/m68k/include/asm/mcfqspi.h Normal file
View File

@ -0,0 +1,64 @@
/*
* Definitions for Freescale Coldfire QSPI module
*
* Copyright 2010 Steven King <sfking@fdwdc.com>
*
* 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.
*
* 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 mcfqspi_h
#define mcfqspi_h
#if defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x)
#define MCFQSPI_IOBASE (MCF_IPSBAR + 0x340)
#elif defined(CONFIG_M5249)
#define MCFQSPI_IOBASE (MCF_MBAR + 0x300)
#elif defined(CONFIG_M520x) || defined(CONFIG_M532x)
#define MCFQSPI_IOBASE 0xFC058000
#endif
#define MCFQSPI_IOSIZE 0x40
/**
* struct mcfqspi_cs_control - chip select control for the coldfire qspi driver
* @setup: setup the control; allocate gpio's, etc. May be NULL.
* @teardown: finish with the control; free gpio's, etc. May be NULL.
* @select: output the signals to select the device. Can not be NULL.
* @deselect: output the signals to deselect the device. Can not be NULL.
*
* The QSPI module has 4 hardware chip selects. We don't use them. Instead
* platforms are required to supply a mcfqspi_cs_control as a part of the
* platform data for each QSPI master controller. Only the select and
* deselect functions are required.
*/
struct mcfqspi_cs_control {
int (*setup)(struct mcfqspi_cs_control *);
void (*teardown)(struct mcfqspi_cs_control *);
void (*select)(struct mcfqspi_cs_control *, u8, bool);
void (*deselect)(struct mcfqspi_cs_control *, u8, bool);
};
/**
* struct mcfqspi_platform_data - platform data for the coldfire qspi driver
* @bus_num: board specific identifier for this qspi driver.
* @num_chipselects: number of chip selects supported by this qspi driver.
* @cs_control: platform dependent chip select control.
*/
struct mcfqspi_platform_data {
s16 bus_num;
u16 num_chipselect;
struct mcfqspi_cs_control *cs_control;
};
#endif /* mcfqspi_h */

149
arch/m68knommu/platform/520x/config.c
View File

@ -15,10 +15,13 @@
#include <linux/param.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/spi/spi.h>
#include <linux/gpio.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfuart.h>
#include <asm/mcfqspi.h>
/***************************************************************************/
@ -74,9 +77,152 @@ static struct platform_device m520x_fec = {
.resource = m520x_fec_resources,
};
#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
static struct resource m520x_qspi_resources[] = {
{
.start = MCFQSPI_IOBASE,
.end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1,
.flags = IORESOURCE_MEM,
},
{
.start = MCFINT_VECBASE + MCFINT_QSPI,
.end = MCFINT_VECBASE + MCFINT_QSPI,
.flags = IORESOURCE_IRQ,
},
};
#define MCFQSPI_CS0 62
#define MCFQSPI_CS1 63
#define MCFQSPI_CS2 44
static int m520x_cs_setup(struct mcfqspi_cs_control *cs_control)
{
int status;
status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS0 failed\n");
goto fail0;
}
status = gpio_direction_output(MCFQSPI_CS0, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n");
goto fail1;
}
status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS1 failed\n");
goto fail1;
}
status = gpio_direction_output(MCFQSPI_CS1, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n");
goto fail2;
}
status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS2 failed\n");
goto fail2;
}
status = gpio_direction_output(MCFQSPI_CS2, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n");
goto fail3;
}
return 0;
fail3:
gpio_free(MCFQSPI_CS2);
fail2:
gpio_free(MCFQSPI_CS1);
fail1:
gpio_free(MCFQSPI_CS0);
fail0:
return status;
}
static void m520x_cs_teardown(struct mcfqspi_cs_control *cs_control)
{
gpio_free(MCFQSPI_CS2);
gpio_free(MCFQSPI_CS1);
gpio_free(MCFQSPI_CS0);
}
static void m520x_cs_select(struct mcfqspi_cs_control *cs_control,
u8 chip_select, bool cs_high)
{
switch (chip_select) {
case 0:
gpio_set_value(MCFQSPI_CS0, cs_high);
break;
case 1:
gpio_set_value(MCFQSPI_CS1, cs_high);
break;
case 2:
gpio_set_value(MCFQSPI_CS2, cs_high);
break;
}
}
static void m520x_cs_deselect(struct mcfqspi_cs_control *cs_control,
u8 chip_select, bool cs_high)
{
switch (chip_select) {
case 0:
gpio_set_value(MCFQSPI_CS0, !cs_high);
break;
case 1:
gpio_set_value(MCFQSPI_CS1, !cs_high);
break;
case 2:
gpio_set_value(MCFQSPI_CS2, !cs_high);
break;
}
}
static struct mcfqspi_cs_control m520x_cs_control = {
.setup = m520x_cs_setup,
.teardown = m520x_cs_teardown,
.select = m520x_cs_select,
.deselect = m520x_cs_deselect,
};
static struct mcfqspi_platform_data m520x_qspi_data = {
.bus_num = 0,
.num_chipselect = 3,
.cs_control = &m520x_cs_control,
};
static struct platform_device m520x_qspi = {
.name = "mcfqspi",
.id = 0,
.num_resources = ARRAY_SIZE(m520x_qspi_resources),
.resource = m520x_qspi_resources,
.dev.platform_data = &m520x_qspi_data,
};
static void __init m520x_qspi_init(void)
{
u16 par;
/* setup Port QS for QSPI with gpio CS control */
writeb(0x3f, MCF_IPSBAR + MCF_GPIO_PAR_QSPI);
/* make U1CTS and U2RTS gpio for cs_control */
par = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART);
par &= 0x00ff;
writew(par, MCF_IPSBAR + MCF_GPIO_PAR_UART);
}
#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */
static struct platform_device *m520x_devices[] __initdata = {
&m520x_uart,
&m520x_fec,
#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
&m520x_qspi,
#endif
};
/***************************************************************************/
@ -147,6 +293,9 @@ void __init config_BSP(char *commandp, int size)
mach_reset = m520x_cpu_reset;
m520x_uarts_init();
m520x_fec_init();
#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
m520x_qspi_init();
#endif
}
/***************************************************************************/

170
arch/m68knommu/platform/523x/config.c
View File

@ -16,10 +16,13 @@
#include <linux/param.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/spi/spi.h>
#include <linux/gpio.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfuart.h>
#include <asm/mcfqspi.h>
/***************************************************************************/
@ -75,9 +78,173 @@ static struct platform_device m523x_fec = {
.resource = m523x_fec_resources,
};
#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
static struct resource m523x_qspi_resources[] = {
{
.start = MCFQSPI_IOBASE,
.end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1,
.flags = IORESOURCE_MEM,
},
{
.start = MCFINT_VECBASE + MCFINT_QSPI,
.end = MCFINT_VECBASE + MCFINT_QSPI,
.flags = IORESOURCE_IRQ,
},
};
#define MCFQSPI_CS0 91
#define MCFQSPI_CS1 92
#define MCFQSPI_CS2 103
#define MCFQSPI_CS3 99
static int m523x_cs_setup(struct mcfqspi_cs_control *cs_control)
{
int status;
status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS0 failed\n");
goto fail0;
}
status = gpio_direction_output(MCFQSPI_CS0, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n");
goto fail1;
}
status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS1 failed\n");
goto fail1;
}
status = gpio_direction_output(MCFQSPI_CS1, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n");
goto fail2;
}
status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS2 failed\n");
goto fail2;
}
status = gpio_direction_output(MCFQSPI_CS2, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n");
goto fail3;
}
status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS3 failed\n");
goto fail3;
}
status = gpio_direction_output(MCFQSPI_CS3, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n");
goto fail4;
}
return 0;
fail4:
gpio_free(MCFQSPI_CS3);
fail3:
gpio_free(MCFQSPI_CS2);
fail2:
gpio_free(MCFQSPI_CS1);
fail1:
gpio_free(MCFQSPI_CS0);
fail0:
return status;
}
static void m523x_cs_teardown(struct mcfqspi_cs_control *cs_control)
{
gpio_free(MCFQSPI_CS3);
gpio_free(MCFQSPI_CS2);
gpio_free(MCFQSPI_CS1);
gpio_free(MCFQSPI_CS0);
}
static void m523x_cs_select(struct mcfqspi_cs_control *cs_control,
u8 chip_select, bool cs_high)
{
switch (chip_select) {
case 0:
gpio_set_value(MCFQSPI_CS0, cs_high);
break;
case 1:
gpio_set_value(MCFQSPI_CS1, cs_high);
break;
case 2:
gpio_set_value(MCFQSPI_CS2, cs_high);
break;
case 3:
gpio_set_value(MCFQSPI_CS3, cs_high);
break;
}
}
static void m523x_cs_deselect(struct mcfqspi_cs_control *cs_control,
u8 chip_select, bool cs_high)
{
switch (chip_select) {
case 0:
gpio_set_value(MCFQSPI_CS0, !cs_high);
break;
case 1:
gpio_set_value(MCFQSPI_CS1, !cs_high);
break;
case 2:
gpio_set_value(MCFQSPI_CS2, !cs_high);
break;
case 3:
gpio_set_value(MCFQSPI_CS3, !cs_high);
break;
}
}
static struct mcfqspi_cs_control m523x_cs_control = {
.setup = m523x_cs_setup,
.teardown = m523x_cs_teardown,
.select = m523x_cs_select,
.deselect = m523x_cs_deselect,
};
static struct mcfqspi_platform_data m523x_qspi_data = {
.bus_num = 0,
.num_chipselect = 4,
.cs_control = &m523x_cs_control,
};
static struct platform_device m523x_qspi = {
.name = "mcfqspi",
.id = 0,
.num_resources = ARRAY_SIZE(m523x_qspi_resources),
.resource = m523x_qspi_resources,
.dev.platform_data = &m523x_qspi_data,
};
static void __init m523x_qspi_init(void)
{
u16 par;
/* setup QSPS pins for QSPI with gpio CS control */
writeb(0x1f, MCFGPIO_PAR_QSPI);
/* and CS2 & CS3 as gpio */
par = readw(MCFGPIO_PAR_TIMER);
par &= 0x3f3f;
writew(par, MCFGPIO_PAR_TIMER);
}
#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */
static struct platform_device *m523x_devices[] __initdata = {
&m523x_uart,
&m523x_fec,
#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
&m523x_qspi,
#endif
};
/***************************************************************************/
@ -114,6 +281,9 @@ void __init config_BSP(char *commandp, int size)
static int __init init_BSP(void)
{
m523x_fec_init();
#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
m523x_qspi_init();
#endif
platform_add_devices(m523x_devices, ARRAY_SIZE(m523x_devices));
return 0;
}

167
arch/m68knommu/platform/5249/config.c
View File

@ -12,10 +12,13 @@
#include <linux/param.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/spi/spi.h>
#include <linux/gpio.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfuart.h>
#include <asm/mcfqspi.h>
/***************************************************************************/
@ -37,8 +40,169 @@ static struct platform_device m5249_uart = {
.dev.platform_data = m5249_uart_platform,
};
#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
static struct resource m5249_qspi_resources[] = {
{
.start = MCFQSPI_IOBASE,
.end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1,
.flags = IORESOURCE_MEM,
},
{
.start = MCF_IRQ_QSPI,
.end = MCF_IRQ_QSPI,
.flags = IORESOURCE_IRQ,
},
};
#define MCFQSPI_CS0 29
#define MCFQSPI_CS1 24
#define MCFQSPI_CS2 21
#define MCFQSPI_CS3 22
static int m5249_cs_setup(struct mcfqspi_cs_control *cs_control)
{
int status;
status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS0 failed\n");
goto fail0;
}
status = gpio_direction_output(MCFQSPI_CS0, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n");
goto fail1;
}
status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS1 failed\n");
goto fail1;
}
status = gpio_direction_output(MCFQSPI_CS1, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n");
goto fail2;
}
status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS2 failed\n");
goto fail2;
}
status = gpio_direction_output(MCFQSPI_CS2, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n");
goto fail3;
}
status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS3 failed\n");
goto fail3;
}
status = gpio_direction_output(MCFQSPI_CS3, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n");
goto fail4;
}
return 0;
fail4:
gpio_free(MCFQSPI_CS3);
fail3:
gpio_free(MCFQSPI_CS2);
fail2:
gpio_free(MCFQSPI_CS1);
fail1:
gpio_free(MCFQSPI_CS0);
fail0:
return status;
}
static void m5249_cs_teardown(struct mcfqspi_cs_control *cs_control)
{
gpio_free(MCFQSPI_CS3);
gpio_free(MCFQSPI_CS2);
gpio_free(MCFQSPI_CS1);
gpio_free(MCFQSPI_CS0);
}
static void m5249_cs_select(struct mcfqspi_cs_control *cs_control,
u8 chip_select, bool cs_high)
{
switch (chip_select) {
case 0:
gpio_set_value(MCFQSPI_CS0, cs_high);
break;
case 1:
gpio_set_value(MCFQSPI_CS1, cs_high);
break;
case 2:
gpio_set_value(MCFQSPI_CS2, cs_high);
break;
case 3:
gpio_set_value(MCFQSPI_CS3, cs_high);
break;
}
}
static void m5249_cs_deselect(struct mcfqspi_cs_control *cs_control,
u8 chip_select, bool cs_high)
{
switch (chip_select) {
case 0:
gpio_set_value(MCFQSPI_CS0, !cs_high);
break;
case 1:
gpio_set_value(MCFQSPI_CS1, !cs_high);
break;
case 2:
gpio_set_value(MCFQSPI_CS2, !cs_high);
break;
case 3:
gpio_set_value(MCFQSPI_CS3, !cs_high);
break;
}
}
static struct mcfqspi_cs_control m5249_cs_control = {
.setup = m5249_cs_setup,
.teardown = m5249_cs_teardown,
.select = m5249_cs_select,
.deselect = m5249_cs_deselect,
};
static struct mcfqspi_platform_data m5249_qspi_data = {
.bus_num = 0,
.num_chipselect = 4,
.cs_control = &m5249_cs_control,
};
static struct platform_device m5249_qspi = {
.name = "mcfqspi",
.id = 0,
.num_resources = ARRAY_SIZE(m5249_qspi_resources),
.resource = m5249_qspi_resources,
.dev.platform_data = &m5249_qspi_data,
};
static void __init m5249_qspi_init(void)
{
/* QSPI irq setup */
writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL4 | MCFSIM_ICR_PRI0,
MCF_MBAR + MCFSIM_QSPIICR);
mcf_mapirq2imr(MCF_IRQ_QSPI, MCFINTC_QSPI);
}
#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */
static struct platform_device *m5249_devices[] __initdata = {
&m5249_uart,
#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
&m5249_qspi,
#endif
};
/***************************************************************************/
@ -100,6 +264,9 @@ void __init config_BSP(char *commandp, int size)
mach_reset = m5249_cpu_reset;
m5249_timers_init();
m5249_uarts_init();
#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
m5249_qspi_init();
#endif
}
/***************************************************************************/

182
arch/m68knommu/platform/527x/config.c
View File

@ -16,10 +16,13 @@
#include <linux/param.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/spi/spi.h>
#include <linux/gpio.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfuart.h>
#include <asm/mcfqspi.h>
/***************************************************************************/
@ -106,12 +109,188 @@ static struct platform_device m527x_fec[] = {
},
};
#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
static struct resource m527x_qspi_resources[] = {
{
.start = MCFQSPI_IOBASE,
.end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1,
.flags = IORESOURCE_MEM,
},
{
.start = MCFINT_VECBASE + MCFINT_QSPI,
.end = MCFINT_VECBASE + MCFINT_QSPI,
.flags = IORESOURCE_IRQ,
},
};
#if defined(CONFIG_M5271)
#define MCFQSPI_CS0 91
#define MCFQSPI_CS1 92
#define MCFQSPI_CS2 99
#define MCFQSPI_CS3 103
#elif defined(CONFIG_M5275)
#define MCFQSPI_CS0 59
#define MCFQSPI_CS1 60
#define MCFQSPI_CS2 61
#define MCFQSPI_CS3 62
#endif
static int m527x_cs_setup(struct mcfqspi_cs_control *cs_control)
{
int status;
status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS0 failed\n");
goto fail0;
}
status = gpio_direction_output(MCFQSPI_CS0, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n");
goto fail1;
}
status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS1 failed\n");
goto fail1;
}
status = gpio_direction_output(MCFQSPI_CS1, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n");
goto fail2;
}
status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS2 failed\n");
goto fail2;
}
status = gpio_direction_output(MCFQSPI_CS2, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n");
goto fail3;
}
status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS3 failed\n");
goto fail3;
}
status = gpio_direction_output(MCFQSPI_CS3, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n");
goto fail4;
}
return 0;
fail4:
gpio_free(MCFQSPI_CS3);
fail3:
gpio_free(MCFQSPI_CS2);
fail2:
gpio_free(MCFQSPI_CS1);
fail1:
gpio_free(MCFQSPI_CS0);
fail0:
return status;
}
static void m527x_cs_teardown(struct mcfqspi_cs_control *cs_control)
{
gpio_free(MCFQSPI_CS3);
gpio_free(MCFQSPI_CS2);
gpio_free(MCFQSPI_CS1);
gpio_free(MCFQSPI_CS0);
}
static void m527x_cs_select(struct mcfqspi_cs_control *cs_control,
u8 chip_select, bool cs_high)
{
switch (chip_select) {
case 0:
gpio_set_value(MCFQSPI_CS0, cs_high);
break;
case 1:
gpio_set_value(MCFQSPI_CS1, cs_high);
break;
case 2:
gpio_set_value(MCFQSPI_CS2, cs_high);
break;
case 3:
gpio_set_value(MCFQSPI_CS3, cs_high);
break;
}
}
static void m527x_cs_deselect(struct mcfqspi_cs_control *cs_control,
u8 chip_select, bool cs_high)
{
switch (chip_select) {
case 0:
gpio_set_value(MCFQSPI_CS0, !cs_high);
break;
case 1:
gpio_set_value(MCFQSPI_CS1, !cs_high);
break;
case 2:
gpio_set_value(MCFQSPI_CS2, !cs_high);
break;
case 3:
gpio_set_value(MCFQSPI_CS3, !cs_high);
break;
}
}
static struct mcfqspi_cs_control m527x_cs_control = {
.setup = m527x_cs_setup,
.teardown = m527x_cs_teardown,
.select = m527x_cs_select,
.deselect = m527x_cs_deselect,
};
static struct mcfqspi_platform_data m527x_qspi_data = {
.bus_num = 0,
.num_chipselect = 4,
.cs_control = &m527x_cs_control,
};
static struct platform_device m527x_qspi = {
.name = "mcfqspi",
.id = 0,
.num_resources = ARRAY_SIZE(m527x_qspi_resources),
.resource = m527x_qspi_resources,
.dev.platform_data = &m527x_qspi_data,
};
static void __init m527x_qspi_init(void)
{
#if defined(CONFIG_M5271)
u16 par;
/* setup QSPS pins for QSPI with gpio CS control */
writeb(0x1f, MCFGPIO_PAR_QSPI);
/* and CS2 & CS3 as gpio */
par = readw(MCFGPIO_PAR_TIMER);
par &= 0x3f3f;
writew(par, MCFGPIO_PAR_TIMER);
#elif defined(CONFIG_M5275)
/* setup QSPS pins for QSPI with gpio CS control */
writew(0x003e, MCFGPIO_PAR_QSPI);
#endif
}
#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */
static struct platform_device *m527x_devices[] __initdata = {
&m527x_uart,
&m527x_fec[0],
#ifdef CONFIG_FEC2
&m527x_fec[1],
#endif
#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
&m527x_qspi,
#endif
};
/***************************************************************************/
@ -187,6 +366,9 @@ void __init config_BSP(char *commandp, int size)
mach_reset = m527x_cpu_reset;
m527x_uarts_init();
m527x_fec_init();
#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
m527x_qspi_init();
#endif
}
/***************************************************************************/

137
arch/m68knommu/platform/528x/config.c
View File

@ -17,10 +17,13 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/spi/spi.h>
#include <linux/gpio.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfuart.h>
#include <asm/mcfqspi.h>
/***************************************************************************/
@ -76,10 +79,141 @@ static struct platform_device m528x_fec = {
.resource = m528x_fec_resources,
};
#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
static struct resource m528x_qspi_resources[] = {
{
.start = MCFQSPI_IOBASE,
.end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1,
.flags = IORESOURCE_MEM,
},
{
.start = MCFINT_VECBASE + MCFINT_QSPI,
.end = MCFINT_VECBASE + MCFINT_QSPI,
.flags = IORESOURCE_IRQ,
},
};
#define MCFQSPI_CS0 147
#define MCFQSPI_CS1 148
#define MCFQSPI_CS2 149
#define MCFQSPI_CS3 150
static int m528x_cs_setup(struct mcfqspi_cs_control *cs_control)
{
int status;
status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS0 failed\n");
goto fail0;
}
status = gpio_direction_output(MCFQSPI_CS0, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n");
goto fail1;
}
status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS1 failed\n");
goto fail1;
}
status = gpio_direction_output(MCFQSPI_CS1, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n");
goto fail2;
}
status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS2 failed\n");
goto fail2;
}
status = gpio_direction_output(MCFQSPI_CS2, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n");
goto fail3;
}
status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS3 failed\n");
goto fail3;
}
status = gpio_direction_output(MCFQSPI_CS3, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n");
goto fail4;
}
return 0;
fail4:
gpio_free(MCFQSPI_CS3);
fail3:
gpio_free(MCFQSPI_CS2);
fail2:
gpio_free(MCFQSPI_CS1);
fail1:
gpio_free(MCFQSPI_CS0);
fail0:
return status;
}
static void m528x_cs_teardown(struct mcfqspi_cs_control *cs_control)
{
gpio_free(MCFQSPI_CS3);
gpio_free(MCFQSPI_CS2);
gpio_free(MCFQSPI_CS1);
gpio_free(MCFQSPI_CS0);
}
static void m528x_cs_select(struct mcfqspi_cs_control *cs_control,
u8 chip_select, bool cs_high)
{
gpio_set_value(MCFQSPI_CS0 + chip_select, cs_high);
}
static void m528x_cs_deselect(struct mcfqspi_cs_control *cs_control,
u8 chip_select, bool cs_high)
{
gpio_set_value(MCFQSPI_CS0 + chip_select, !cs_high);
}
static struct mcfqspi_cs_control m528x_cs_control = {
.setup = m528x_cs_setup,
.teardown = m528x_cs_teardown,
.select = m528x_cs_select,
.deselect = m528x_cs_deselect,
};
static struct mcfqspi_platform_data m528x_qspi_data = {
.bus_num = 0,
.num_chipselect = 4,
.cs_control = &m528x_cs_control,
};
static struct platform_device m528x_qspi = {
.name = "mcfqspi",
.id = 0,
.num_resources = ARRAY_SIZE(m528x_qspi_resources),
.resource = m528x_qspi_resources,
.dev.platform_data = &m528x_qspi_data,
};
static void __init m528x_qspi_init(void)
{
/* setup Port QS for QSPI with gpio CS control */
__raw_writeb(0x07, MCFGPIO_PQSPAR);
}
#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */
static struct platform_device *m528x_devices[] __initdata = {
&m528x_uart,
&m528x_fec,
#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
&m528x_qspi,
#endif
};
/***************************************************************************/
@ -174,6 +308,9 @@ static int __init init_BSP(void)
mach_reset = m528x_cpu_reset;
m528x_uarts_init();
m528x_fec_init();
#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
m528x_qspi_init();
#endif
platform_add_devices(m528x_devices, ARRAY_SIZE(m528x_devices));
return 0;
}

124
arch/m68knommu/platform/532x/config.c
View File

@ -21,12 +21,15 @@
#include <linux/param.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/spi/spi.h>
#include <linux/gpio.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfuart.h>
#include <asm/mcfdma.h>
#include <asm/mcfwdebug.h>
#include <asm/mcfqspi.h>
/***************************************************************************/
@ -82,9 +85,127 @@ static struct platform_device m532x_fec = {
.resource = m532x_fec_resources,
};
#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
static struct resource m532x_qspi_resources[] = {
{
.start = MCFQSPI_IOBASE,
.end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1,
.flags = IORESOURCE_MEM,
},
{
.start = MCFINT_VECBASE + MCFINT_QSPI,
.end = MCFINT_VECBASE + MCFINT_QSPI,
.flags = IORESOURCE_IRQ,
},
};
#define MCFQSPI_CS0 84
#define MCFQSPI_CS1 85
#define MCFQSPI_CS2 86
static int m532x_cs_setup(struct mcfqspi_cs_control *cs_control)
{
int status;
status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS0 failed\n");
goto fail0;
}
status = gpio_direction_output(MCFQSPI_CS0, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n");
goto fail1;
}
status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS1 failed\n");
goto fail1;
}
status = gpio_direction_output(MCFQSPI_CS1, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n");
goto fail2;
}
status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2");
if (status) {
pr_debug("gpio_request for MCFQSPI_CS2 failed\n");
goto fail2;
}
status = gpio_direction_output(MCFQSPI_CS2, 1);
if (status) {
pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n");
goto fail3;
}
return 0;
fail3:
gpio_free(MCFQSPI_CS2);
fail2:
gpio_free(MCFQSPI_CS1);
fail1:
gpio_free(MCFQSPI_CS0);
fail0:
return status;
}
static void m532x_cs_teardown(struct mcfqspi_cs_control *cs_control)
{
gpio_free(MCFQSPI_CS2);
gpio_free(MCFQSPI_CS1);
gpio_free(MCFQSPI_CS0);
}
static void m532x_cs_select(struct mcfqspi_cs_control *cs_control,
u8 chip_select, bool cs_high)
{
gpio_set_value(MCFQSPI_CS0 + chip_select, cs_high);
}
static void m532x_cs_deselect(struct mcfqspi_cs_control *cs_control,
u8 chip_select, bool cs_high)
{
gpio_set_value(MCFQSPI_CS0 + chip_select, !cs_high);
}
static struct mcfqspi_cs_control m532x_cs_control = {
.setup = m532x_cs_setup,
.teardown = m532x_cs_teardown,
.select = m532x_cs_select,
.deselect = m532x_cs_deselect,
};
static struct mcfqspi_platform_data m532x_qspi_data = {
.bus_num = 0,
.num_chipselect = 3,
.cs_control = &m532x_cs_control,
};
static struct platform_device m532x_qspi = {
.name = "mcfqspi",
.id = 0,
.num_resources = ARRAY_SIZE(m532x_qspi_resources),
.resource = m532x_qspi_resources,
.dev.platform_data = &m532x_qspi_data,
};
static void __init m532x_qspi_init(void)
{
/* setup QSPS pins for QSPI with gpio CS control */
writew(0x01f0, MCF_GPIO_PAR_QSPI);
}
#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */
static struct platform_device *m532x_devices[] __initdata = {
&m532x_uart,
&m532x_fec,
#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
&m532x_qspi,
#endif
};
/***************************************************************************/
@ -158,6 +279,9 @@ static int __init init_BSP(void)
{
m532x_uarts_init();
m532x_fec_init();
#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
m532x_qspi_init();
#endif
platform_add_devices(m532x_devices, ARRAY_SIZE(m532x_devices));
return 0;
}