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Add support for a Freescale non-CPM SPI controller

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This patch adds support for the SPI controller found on Freescale PowerPC
processors such as the MCP834x family.  Additionally, a new config option,
CONFIG_HARD_SPI, is added for general purpose SPI controller use.

Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
This commit is contained in:
Ben Warren
2008-01-16 22:37:35 -05:00
committed by Kim Phillips
parent a8cb43a89b
commit 04a9e1180a
7 changed files with 264 additions and 4 deletions
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9
include/asm-ppc/immap_83xx.h
View File

@@ -30,6 +30,7 @@
#include <asm/types.h>
#include <asm/fsl_i2c.h>
#include <asm/mpc8xxx_spi.h>
/*
* Local Access Window
@@ -627,7 +628,7 @@ typedef struct immap {
u8 res3[0x900];
lbus83xx_t lbus; /* Local Bus Controller Registers */
u8 res4[0x1000];
spi83xx_t spi; /* Serial Peripheral Interface */
spi8xxx_t spi; /* Serial Peripheral Interface */
dma83xx_t dma; /* DMA */
pciconf83xx_t pci_conf[2]; /* PCI Software Configuration Registers */
ios83xx_t ios; /* Sequencer */
@@ -661,7 +662,7 @@ typedef struct immap {
u8 res2[0x900];
lbus83xx_t lbus; /* Local Bus Controller Registers */
u8 res3[0x1000];
spi83xx_t spi; /* Serial Peripheral Interface */
spi8xxx_t spi; /* Serial Peripheral Interface */
dma83xx_t dma; /* DMA */
pciconf83xx_t pci_conf[1]; /* PCI Software Configuration Registers */
u8 res4[0x80];
@@ -696,7 +697,7 @@ typedef struct immap {
u8 res2[0x900];
lbus83xx_t lbus; /* Local Bus Controller Registers */
u8 res3[0x1000];
spi83xx_t spi; /* Serial Peripheral Interface */
spi8xxx_t spi; /* Serial Peripheral Interface */
dma83xx_t dma; /* DMA */
pciconf83xx_t pci_conf[1]; /* PCI Software Configuration Registers */
u8 res4[0x80];
@@ -741,7 +742,7 @@ typedef struct immap {
u8 res2[0x900];
lbus83xx_t lbus; /* Local Bus Controller Registers */
u8 res3[0x1000];
spi83xx_t spi; /* Serial Peripheral Interface */
spi8xxx_t spi; /* Serial Peripheral Interface */
dma83xx_t dma; /* DMA */
pciconf83xx_t pci_conf[1]; /* PCI Software Configuration Registers */
u8 res4[0x80];

49
include/asm-ppc/mpc8xxx_spi.h Normal file
View File

@@ -0,0 +1,49 @@
/*
* Freescale non-CPM SPI Controller
*
* Copyright 2008 Qstreams Networks, Inc.
*
* This software may be used and distributed according to the
* terms of the GNU Public License, Version 2, incorporated
* herein by reference.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef _ASM_MPC8XXX_SPI_H_
#define _ASM_MPC8XXX_SPI_H_
#include <asm/types.h>
#if defined(CONFIG_MPC834X) || \
defined(CONFIG_MPC8313) || \
defined(CONFIG_MPC8315) || \
defined(CONFIG_MPC837X)
typedef struct spi8xxx
{
u8 res0[0x20]; /* 0x0-0x01f reserved */
u32 mode; /* mode register */
u32 event; /* event register */
u32 mask; /* mask register */
u32 com; /* command register */
u32 tx; /* transmit register */
u32 rx; /* receive register */
u8 res1[0xC8]; /* fill up to 0x100 */
} spi8xxx_t;
#endif
#endif /* _ASM_MPC8XXX_SPI_H_ */