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[MFD] Add SA11x0 MCP platform device support

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Add platform device data for the SA11x0 MCP device.  This allows
platforms to customise the configuration of the SA11x0 MCP device
according to their needs.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2005-08-18 10:10:46 +01:00 committed by Russell King
parent 5e742ad66b
commit 323cdfc191
9 changed files with 79 additions and 10 deletions
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7
arch/arm/mach-sa1100/assabet.c
View File

@ -35,6 +35,7 @@
#include <asm/mach/map.h>
#include <asm/mach/serial_sa1100.h>
#include <asm/arch/assabet.h>
#include <asm/arch/mcp.h>
#include "generic.h"
@ -198,6 +199,11 @@ static struct irda_platform_data assabet_irda_data = {
.set_speed = assabet_irda_set_speed,
};
static struct mcp_plat_data assabet_mcp_data = {
.mccr0 = MCCR0_ADM,
.sclk_rate = 11981000,
};
static void __init assabet_init(void)
{
/*
@ -246,6 +252,7 @@ static void __init assabet_init(void)
sa11x0_set_flash_data(&assabet_flash_data, assabet_flash_resources,
ARRAY_SIZE(assabet_flash_resources));
sa11x0_set_irda_data(&assabet_irda_data);
sa11x0_set_mcp_data(&assabet_mcp_data);
}
/*

7
arch/arm/mach-sa1100/cerf.c
View File

@ -29,6 +29,7 @@
#include <asm/mach/serial_sa1100.h>
#include <asm/arch/cerf.h>
#include <asm/arch/mcp.h>
#include "generic.h"
static struct resource cerfuart2_resources[] = {
@ -116,10 +117,16 @@ static void __init cerf_map_io(void)
GPDR |= CERF_GPIO_CF_RESET;
}
static struct mcp_plat_data cerf_mcp_data = {
.mccr0 = MCCR0_ADM,
.sclk_rate = 11981000,
};
static void __init cerf_init(void)
{
platform_add_devices(cerf_devices, ARRAY_SIZE(cerf_devices));
sa11x0_set_flash_data(&cerf_flash_data, &cerf_flash_resource, 1);
sa11x0_set_mcp_data(&cerf_mcp_data);
}
MACHINE_START(CERF, "Intrinsyc CerfBoard/CerfCube")

5
arch/arm/mach-sa1100/generic.c
View File

@ -221,6 +221,11 @@ static struct platform_device sa11x0mcp_device = {
.resource = sa11x0mcp_resources,
};
void sa11x0_set_mcp_data(struct mcp_plat_data *data)
{
sa11x0mcp_device.dev.platform_data = data;
}
static struct resource sa11x0ssp_resources[] = {
[0] = {
.start = 0x80070000,

3
arch/arm/mach-sa1100/generic.h
View File

@ -34,5 +34,8 @@ struct resource;
extern void sa11x0_set_flash_data(struct flash_platform_data *flash,
struct resource *res, int nr);
struct sa11x0_ssp_plat_ops;
extern void sa11x0_set_ssp_data(struct sa11x0_ssp_plat_ops *ops);
struct irda_platform_data;
void sa11x0_set_irda_data(struct irda_platform_data *irda);

12
arch/arm/mach-sa1100/lart.c
View File

@ -13,12 +13,23 @@
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/serial_sa1100.h>
#include <asm/arch/mcp.h>
#include "generic.h"
#warning "include/asm/arch-sa1100/ide.h needs fixing for lart"
static struct mcp_plat_data lart_mcp_data = {
.mccr0 = MCCR0_ADM,
.sclk_rate = 11981000,
};
static void __init lart_init(void)
{
sa11x0_set_mcp_data(&lart_mcp_data);
}
static struct map_desc lart_io_desc[] __initdata = {
/* virtual physical length type */
{ 0xe8000000, 0x00000000, 0x00400000, MT_DEVICE }, /* main flash memory */
@ -47,5 +58,6 @@ MACHINE_START(LART, "LART")
.boot_params = 0xc0000100,
.map_io = lart_map_io,
.init_irq = sa1100_init_irq,
.init_machine = lart_init,
.timer = &sa1100_timer,
MACHINE_END

7
arch/arm/mach-sa1100/shannon.c
View File

@ -18,6 +18,7 @@
#include <asm/mach/flash.h>
#include <asm/mach/map.h>
#include <asm/mach/serial_sa1100.h>
#include <asm/arch/mcp.h>
#include <asm/arch/shannon.h>
#include "generic.h"
@ -52,9 +53,15 @@ static struct resource shannon_flash_resource = {
.flags = IORESOURCE_MEM,
};
static struct mcp_plat_data shannon_mcp_data = {
.mccr0 = MCCR0_ADM,
.sclk_rate = 11981000,
};
static void __init shannon_init(void)
{
sa11x0_set_flash_data(&shannon_flash_data, &shannon_flash_resource, 1);
sa11x0_set_mcp_data(&shannon_mcp_data);
}
static void __init shannon_map_io(void)

7
arch/arm/mach-sa1100/simpad.c
View File

@ -23,6 +23,7 @@
#include <asm/mach/flash.h>
#include <asm/mach/map.h>
#include <asm/mach/serial_sa1100.h>
#include <asm/arch/mcp.h>
#include <asm/arch/simpad.h>
#include <linux/serial_core.h>
@ -123,6 +124,11 @@ static struct resource simpad_flash_resources [] = {
}
};
static struct mcp_plat_data simpad_mcp_data = {
.mccr0 = MCCR0_ADM,
.sclk_rate = 11981000,
};
static void __init simpad_map_io(void)
@ -157,6 +163,7 @@ static void __init simpad_map_io(void)
sa11x0_set_flash_data(&simpad_flash_data, simpad_flash_resources,
ARRAY_SIZE(simpad_flash_resources));
sa11x0_set_mcp_data(&simpad_mcp_data);
}
static void simpad_power_off(void)

20
drivers/mfd/mcp-sa11x0.c
View File

@ -24,6 +24,7 @@
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/system.h>
#include <asm/arch/mcp.h>
#include <asm/arch/assabet.h>
@ -140,16 +141,11 @@ static struct mcp_ops mcp_sa11x0 = {
static int mcp_sa11x0_probe(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct mcp_plat_data *data = pdev->dev.platform_data;
struct mcp *mcp;
int ret;
if (!machine_is_adsbitsy() && !machine_is_assabet() &&
!machine_is_cerf() && !machine_is_flexanet() &&
!machine_is_freebird() && !machine_is_graphicsclient() &&
!machine_is_graphicsmaster() && !machine_is_lart() &&
!machine_is_omnimeter() && !machine_is_pfs168() &&
!machine_is_shannon() && !machine_is_simpad() &&
!machine_is_yopy())
if (!data)
return -ENODEV;
if (!request_mem_region(0x80060000, 0x60, "sa11x0-mcp"))
@ -163,7 +159,7 @@ static int mcp_sa11x0_probe(struct device *dev)
mcp->owner = THIS_MODULE;
mcp->ops = &mcp_sa11x0;
mcp->sclk_rate = 11981000,
mcp->sclk_rate = data->sclk_rate;
mcp->dma_audio_rd = DMA_Ser4MCP0Rd;
mcp->dma_audio_wr = DMA_Ser4MCP0Wr;
mcp->dma_telco_rd = DMA_Ser4MCP1Rd;
@ -184,9 +180,13 @@ static int mcp_sa11x0_probe(struct device *dev)
PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
/*
* Initialise device. Note that we initially
* set the sampling rate to minimum.
*/
Ser4MCSR = -1;
Ser4MCCR1 = 0;
Ser4MCCR0 = 0x00007f7f | MCCR0_ADM;
Ser4MCCR1 = data->mccr1;
Ser4MCCR0 = data->mccr0 | 0x7f7f;
/*
* Calculate the read/write timeout (us) from the bit clock

21
include/asm-arm/arch-sa1100/mcp.h Normal file
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@ -0,0 +1,21 @@
/*
* linux/include/asm-arm/arch-sa1100/mcp.h
*
* Copyright (C) 2005 Russell King.
*
* 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 __ASM_ARM_ARCH_MCP_H
#define __ASM_ARM_ARCH_MCP_H
#include <linux/types.h>
struct mcp_plat_data {
u32 mccr0;
u32 mccr1;
unsigned int sclk_rate;
};
#endif