Release 4.11 arch/arm/mach-omap1/mcbsp.c
/*
* linux/arch/arm/mach-omap1/mcbsp.c
*
* Copyright (C) 2008 Instituto Nokia de Tecnologia
* Contact: Eduardo Valentin <eduardo.valentin@indt.org.br>
*
* 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.
*
* 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);
}
}
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Russell King | 52 | 57.14% | 1 | 25.00% |
| Eduardo Valentin | 35 | 38.46% | 1 | 25.00% |
| Jarkko Nikula | 2 | 2.20% | 1 | 25.00% |
| Arun K S | 2 | 2.20% | 1 | 25.00% |
| Total | 91 | 100.00% | 4 | 100.00% |
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);
}
}
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Russell King | 51 | 71.83% | 1 | 33.33% |
| Eduardo Valentin | 18 | 25.35% | 1 | 33.33% |
| Jarkko Nikula | 2 | 2.82% | 1 | 33.33% |
| Total | 71 | 100.00% | 3 | 100.00% |
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 = kzalloc(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;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jarkko Nikula | 166 | 100.00% | 2 | 100.00% |
| Total | 166 | 100.00% | 2 | 100.00% |
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Eduardo Valentin | 41 | 58.57% | 1 | 12.50% |
| Kishon Vijay Abraham I | 12 | 17.14% | 1 | 12.50% |
| Tony Lindgren | 10 | 14.29% | 1 | 12.50% |
| Paul Walmsley | 3 | 4.29% | 1 | 12.50% |
| Alistair Buxton | 2 | 2.86% | 2 | 25.00% |
| Aaro Koskinen | 1 | 1.43% | 1 | 12.50% |
| Peter Ujfalusi | 1 | 1.43% | 1 | 12.50% |
| Total | 70 | 100.00% | 8 | 100.00% |
arch_initcall(omap1_mcbsp_init);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kishon Vijay Abraham I | 648 | 44.11% | 1 | 4.00% |
| Eduardo Valentin | 369 | 25.12% | 1 | 4.00% |
| Jarkko Nikula | 225 | 15.32% | 5 | 20.00% |
| Russell King | 147 | 10.01% | 2 | 8.00% |
| Alistair Buxton | 19 | 1.29% | 3 | 12.00% |
| Tony Lindgren | 19 | 1.29% | 5 | 20.00% |
| Paul Walmsley | 18 | 1.23% | 1 | 4.00% |
| Janusz Krzysztofik | 15 | 1.02% | 1 | 4.00% |
| Tejun Heo | 3 | 0.20% | 1 | 4.00% |
| Arun K S | 2 | 0.14% | 1 | 4.00% |
| Stanley Miao | 1 | 0.07% | 1 | 4.00% |
| Arnd Bergmann | 1 | 0.07% | 1 | 4.00% |
| Aaro Koskinen | 1 | 0.07% | 1 | 4.00% |
| Peter Ujfalusi | 1 | 0.07% | 1 | 4.00% |
| Total | 1469 | 100.00% | 25 | 100.00% |
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