diff options
author | 2010-01-22 12:43:03 -0800 | |
---|---|---|
committer | 2010-05-17 11:04:19 +1000 | |
commit | 91d60417212fa6b100107384c5e4f5663ab69c8f (patch) | |
tree | 2e751a2df6a8e873b46d800d430d9cf617b9d399 /arch/m68k | |
parent | Linus 2.6.34 (diff) | |
download | linux-91d60417212fa6b100107384c5e4f5663ab69c8f.tar.gz linux-91d60417212fa6b100107384c5e4f5663ab69c8f.tar.bz2 linux-91d60417212fa6b100107384c5e4f5663ab69c8f.zip |
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>
Diffstat (limited to 'arch/m68k')
-rw-r--r-- | arch/m68k/include/asm/m520xsim.h | 1 | ||||
-rw-r--r-- | arch/m68k/include/asm/m523xsim.h | 5 | ||||
-rw-r--r-- | arch/m68k/include/asm/m5249sim.h | 2 | ||||
-rw-r--r-- | arch/m68k/include/asm/m527xsim.h | 7 | ||||
-rw-r--r-- | arch/m68k/include/asm/m528xsim.h | 67 | ||||
-rw-r--r-- | arch/m68k/include/asm/m532xsim.h | 1 | ||||
-rw-r--r-- | arch/m68k/include/asm/mcfqspi.h | 64 |
7 files changed, 81 insertions, 66 deletions
diff --git a/arch/m68k/include/asm/m520xsim.h b/arch/m68k/include/asm/m520xsim.h index ed2b69b96805..db824a4b136e 100644 --- a/arch/m68k/include/asm/m520xsim.h +++ b/arch/m68k/include/asm/m520xsim.h @@ -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) diff --git a/arch/m68k/include/asm/m523xsim.h b/arch/m68k/include/asm/m523xsim.h index a34894cf8e6f..e8d06b24a48e 100644 --- a/arch/m68k/include/asm/m523xsim.h +++ b/arch/m68k/include/asm/m523xsim.h @@ -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 */ diff --git a/arch/m68k/include/asm/m5249sim.h b/arch/m68k/include/asm/m5249sim.h index 14bce877ed88..79b7b402f3c9 100644 --- a/arch/m68k/include/asm/m5249sim.h +++ b/arch/m68k/include/asm/m5249sim.h @@ -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 */ diff --git a/arch/m68k/include/asm/m527xsim.h b/arch/m68k/include/asm/m527xsim.h index 453356d72d80..1feb46f108ce 100644 --- a/arch/m68k/include/asm/m527xsim.h +++ b/arch/m68k/include/asm/m527xsim.h @@ -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. */ diff --git a/arch/m68k/include/asm/m528xsim.h b/arch/m68k/include/asm/m528xsim.h index e2ad1f42b657..891cbedad972 100644 --- a/arch/m68k/include/asm/m528xsim.h +++ b/arch/m68k/include/asm/m528xsim.h @@ -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 */ diff --git a/arch/m68k/include/asm/m532xsim.h b/arch/m68k/include/asm/m532xsim.h index 36bf15aec9ae..c4bf1c81e3cf 100644 --- a/arch/m68k/include/asm/m532xsim.h +++ b/arch/m68k/include/asm/m532xsim.h @@ -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) diff --git a/arch/m68k/include/asm/mcfqspi.h b/arch/m68k/include/asm/mcfqspi.h new file mode 100644 index 000000000000..39d90d51111d --- /dev/null +++ b/arch/m68k/include/asm/mcfqspi.h @@ -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 */ |