d2912cb15b
Based on 2 normalized pattern(s): 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 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 # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
444 lines
8.5 KiB
C
444 lines
8.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* linux/arch/arm/mach-omap1/mcbsp.c
|
|
*
|
|
* Copyright (C) 2008 Instituto Nokia de Tecnologia
|
|
* Contact: Eduardo Valentin <eduardo.valentin@indt.org.br>
|
|
*
|
|
* Multichannel mode not supported.
|
|
*/
|
|
#include <linux/ioport.h>
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/err.h>
|
|
#include <linux/io.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include <linux/omap-dma.h>
|
|
#include <mach/mux.h>
|
|
#include "soc.h"
|
|
#include <linux/platform_data/asoc-ti-mcbsp.h>
|
|
|
|
#include <mach/irqs.h>
|
|
|
|
#include "iomap.h"
|
|
|
|
#define DPS_RSTCT2_PER_EN (1 << 0)
|
|
#define DSP_RSTCT2_WD_PER_EN (1 << 1)
|
|
|
|
static int dsp_use;
|
|
static struct clk *api_clk;
|
|
static struct clk *dsp_clk;
|
|
static struct platform_device **omap_mcbsp_devices;
|
|
|
|
static void omap1_mcbsp_request(unsigned int id)
|
|
{
|
|
/*
|
|
* On 1510, 1610 and 1710, McBSP1 and McBSP3
|
|
* are DSP public peripherals.
|
|
*/
|
|
if (id == 0 || id == 2) {
|
|
if (dsp_use++ == 0) {
|
|
api_clk = clk_get(NULL, "api_ck");
|
|
dsp_clk = clk_get(NULL, "dsp_ck");
|
|
if (!IS_ERR(api_clk) && !IS_ERR(dsp_clk)) {
|
|
clk_enable(api_clk);
|
|
clk_enable(dsp_clk);
|
|
|
|
/*
|
|
* DSP external peripheral reset
|
|
* FIXME: This should be moved to dsp code
|
|
*/
|
|
__raw_writew(__raw_readw(DSP_RSTCT2) | DPS_RSTCT2_PER_EN |
|
|
DSP_RSTCT2_WD_PER_EN, DSP_RSTCT2);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void omap1_mcbsp_free(unsigned int id)
|
|
{
|
|
if (id == 0 || id == 2) {
|
|
if (--dsp_use == 0) {
|
|
if (!IS_ERR(api_clk)) {
|
|
clk_disable(api_clk);
|
|
clk_put(api_clk);
|
|
}
|
|
if (!IS_ERR(dsp_clk)) {
|
|
clk_disable(dsp_clk);
|
|
clk_put(dsp_clk);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static struct omap_mcbsp_ops omap1_mcbsp_ops = {
|
|
.request = omap1_mcbsp_request,
|
|
.free = omap1_mcbsp_free,
|
|
};
|
|
|
|
#define OMAP7XX_MCBSP1_BASE 0xfffb1000
|
|
#define OMAP7XX_MCBSP2_BASE 0xfffb1800
|
|
|
|
#define OMAP1510_MCBSP1_BASE 0xe1011800
|
|
#define OMAP1510_MCBSP2_BASE 0xfffb1000
|
|
#define OMAP1510_MCBSP3_BASE 0xe1017000
|
|
|
|
#define OMAP1610_MCBSP1_BASE 0xe1011800
|
|
#define OMAP1610_MCBSP2_BASE 0xfffb1000
|
|
#define OMAP1610_MCBSP3_BASE 0xe1017000
|
|
|
|
#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
|
|
struct resource omap7xx_mcbsp_res[][6] = {
|
|
{
|
|
{
|
|
.start = OMAP7XX_MCBSP1_BASE,
|
|
.end = OMAP7XX_MCBSP1_BASE + SZ_256,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.name = "rx",
|
|
.start = INT_7XX_McBSP1RX,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "tx",
|
|
.start = INT_7XX_McBSP1TX,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "rx",
|
|
.start = 9,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
{
|
|
.name = "tx",
|
|
.start = 8,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
},
|
|
{
|
|
{
|
|
.start = OMAP7XX_MCBSP2_BASE,
|
|
.end = OMAP7XX_MCBSP2_BASE + SZ_256,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.name = "rx",
|
|
.start = INT_7XX_McBSP2RX,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "tx",
|
|
.start = INT_7XX_McBSP2TX,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "rx",
|
|
.start = 11,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
{
|
|
.name = "tx",
|
|
.start = 10,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
},
|
|
};
|
|
|
|
#define omap7xx_mcbsp_res_0 omap7xx_mcbsp_res[0]
|
|
|
|
static struct omap_mcbsp_platform_data omap7xx_mcbsp_pdata[] = {
|
|
{
|
|
.ops = &omap1_mcbsp_ops,
|
|
},
|
|
{
|
|
.ops = &omap1_mcbsp_ops,
|
|
},
|
|
};
|
|
#define OMAP7XX_MCBSP_RES_SZ ARRAY_SIZE(omap7xx_mcbsp_res[1])
|
|
#define OMAP7XX_MCBSP_COUNT ARRAY_SIZE(omap7xx_mcbsp_res)
|
|
#else
|
|
#define omap7xx_mcbsp_res_0 NULL
|
|
#define omap7xx_mcbsp_pdata NULL
|
|
#define OMAP7XX_MCBSP_RES_SZ 0
|
|
#define OMAP7XX_MCBSP_COUNT 0
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_OMAP15XX
|
|
struct resource omap15xx_mcbsp_res[][6] = {
|
|
{
|
|
{
|
|
.start = OMAP1510_MCBSP1_BASE,
|
|
.end = OMAP1510_MCBSP1_BASE + SZ_256,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.name = "rx",
|
|
.start = INT_McBSP1RX,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "tx",
|
|
.start = INT_McBSP1TX,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "rx",
|
|
.start = 9,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
{
|
|
.name = "tx",
|
|
.start = 8,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
},
|
|
{
|
|
{
|
|
.start = OMAP1510_MCBSP2_BASE,
|
|
.end = OMAP1510_MCBSP2_BASE + SZ_256,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.name = "rx",
|
|
.start = INT_1510_SPI_RX,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "tx",
|
|
.start = INT_1510_SPI_TX,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "rx",
|
|
.start = 17,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
{
|
|
.name = "tx",
|
|
.start = 16,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
},
|
|
{
|
|
{
|
|
.start = OMAP1510_MCBSP3_BASE,
|
|
.end = OMAP1510_MCBSP3_BASE + SZ_256,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.name = "rx",
|
|
.start = INT_McBSP3RX,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "tx",
|
|
.start = INT_McBSP3TX,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "rx",
|
|
.start = 11,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
{
|
|
.name = "tx",
|
|
.start = 10,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
},
|
|
};
|
|
|
|
#define omap15xx_mcbsp_res_0 omap15xx_mcbsp_res[0]
|
|
|
|
static struct omap_mcbsp_platform_data omap15xx_mcbsp_pdata[] = {
|
|
{
|
|
.ops = &omap1_mcbsp_ops,
|
|
},
|
|
{
|
|
.ops = &omap1_mcbsp_ops,
|
|
},
|
|
{
|
|
.ops = &omap1_mcbsp_ops,
|
|
},
|
|
};
|
|
#define OMAP15XX_MCBSP_RES_SZ ARRAY_SIZE(omap15xx_mcbsp_res[1])
|
|
#define OMAP15XX_MCBSP_COUNT ARRAY_SIZE(omap15xx_mcbsp_res)
|
|
#else
|
|
#define omap15xx_mcbsp_res_0 NULL
|
|
#define omap15xx_mcbsp_pdata NULL
|
|
#define OMAP15XX_MCBSP_RES_SZ 0
|
|
#define OMAP15XX_MCBSP_COUNT 0
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_OMAP16XX
|
|
struct resource omap16xx_mcbsp_res[][6] = {
|
|
{
|
|
{
|
|
.start = OMAP1610_MCBSP1_BASE,
|
|
.end = OMAP1610_MCBSP1_BASE + SZ_256,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.name = "rx",
|
|
.start = INT_McBSP1RX,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "tx",
|
|
.start = INT_McBSP1TX,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "rx",
|
|
.start = 9,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
{
|
|
.name = "tx",
|
|
.start = 8,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
},
|
|
{
|
|
{
|
|
.start = OMAP1610_MCBSP2_BASE,
|
|
.end = OMAP1610_MCBSP2_BASE + SZ_256,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.name = "rx",
|
|
.start = INT_1610_McBSP2_RX,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "tx",
|
|
.start = INT_1610_McBSP2_TX,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "rx",
|
|
.start = 17,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
{
|
|
.name = "tx",
|
|
.start = 16,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
},
|
|
{
|
|
{
|
|
.start = OMAP1610_MCBSP3_BASE,
|
|
.end = OMAP1610_MCBSP3_BASE + SZ_256,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.name = "rx",
|
|
.start = INT_McBSP3RX,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "tx",
|
|
.start = INT_McBSP3TX,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.name = "rx",
|
|
.start = 11,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
{
|
|
.name = "tx",
|
|
.start = 10,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
},
|
|
};
|
|
|
|
#define omap16xx_mcbsp_res_0 omap16xx_mcbsp_res[0]
|
|
|
|
static struct omap_mcbsp_platform_data omap16xx_mcbsp_pdata[] = {
|
|
{
|
|
.ops = &omap1_mcbsp_ops,
|
|
},
|
|
{
|
|
.ops = &omap1_mcbsp_ops,
|
|
},
|
|
{
|
|
.ops = &omap1_mcbsp_ops,
|
|
},
|
|
};
|
|
#define OMAP16XX_MCBSP_RES_SZ ARRAY_SIZE(omap16xx_mcbsp_res[1])
|
|
#define OMAP16XX_MCBSP_COUNT ARRAY_SIZE(omap16xx_mcbsp_res)
|
|
#else
|
|
#define omap16xx_mcbsp_res_0 NULL
|
|
#define omap16xx_mcbsp_pdata NULL
|
|
#define OMAP16XX_MCBSP_RES_SZ 0
|
|
#define OMAP16XX_MCBSP_COUNT 0
|
|
#endif
|
|
|
|
static void omap_mcbsp_register_board_cfg(struct resource *res, int res_count,
|
|
struct omap_mcbsp_platform_data *config, int size)
|
|
{
|
|
int i;
|
|
|
|
omap_mcbsp_devices = kcalloc(size, sizeof(struct platform_device *),
|
|
GFP_KERNEL);
|
|
if (!omap_mcbsp_devices) {
|
|
printk(KERN_ERR "Could not register McBSP devices\n");
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < size; i++) {
|
|
struct platform_device *new_mcbsp;
|
|
int ret;
|
|
|
|
new_mcbsp = platform_device_alloc("omap-mcbsp", i + 1);
|
|
if (!new_mcbsp)
|
|
continue;
|
|
platform_device_add_resources(new_mcbsp, &res[i * res_count],
|
|
res_count);
|
|
config[i].reg_size = 2;
|
|
config[i].reg_step = 2;
|
|
new_mcbsp->dev.platform_data = &config[i];
|
|
ret = platform_device_add(new_mcbsp);
|
|
if (ret) {
|
|
platform_device_put(new_mcbsp);
|
|
continue;
|
|
}
|
|
omap_mcbsp_devices[i] = new_mcbsp;
|
|
}
|
|
}
|
|
|
|
static int __init omap1_mcbsp_init(void)
|
|
{
|
|
if (!cpu_class_is_omap1())
|
|
return -ENODEV;
|
|
|
|
if (cpu_is_omap7xx())
|
|
omap_mcbsp_register_board_cfg(omap7xx_mcbsp_res_0,
|
|
OMAP7XX_MCBSP_RES_SZ,
|
|
omap7xx_mcbsp_pdata,
|
|
OMAP7XX_MCBSP_COUNT);
|
|
|
|
if (cpu_is_omap15xx())
|
|
omap_mcbsp_register_board_cfg(omap15xx_mcbsp_res_0,
|
|
OMAP15XX_MCBSP_RES_SZ,
|
|
omap15xx_mcbsp_pdata,
|
|
OMAP15XX_MCBSP_COUNT);
|
|
|
|
if (cpu_is_omap16xx())
|
|
omap_mcbsp_register_board_cfg(omap16xx_mcbsp_res_0,
|
|
OMAP16XX_MCBSP_RES_SZ,
|
|
omap16xx_mcbsp_pdata,
|
|
OMAP16XX_MCBSP_COUNT);
|
|
|
|
return 0;
|
|
}
|
|
|
|
arch_initcall(omap1_mcbsp_init);
|