mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-24 05:04:00 +08:00
4367260c0b
It seems these comments where accidentally added so remove them. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Acked-by: Paul Walmsley <paul@pwsan.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
297 lines
8.2 KiB
C
297 lines
8.2 KiB
C
/*
|
|
* linux/arch/arm/mach-omap2/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/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 <mach/irqs.h>
|
|
#include <plat/dma.h>
|
|
#include <plat/cpu.h>
|
|
#include <plat/mcbsp.h>
|
|
|
|
#include "control.h"
|
|
|
|
|
|
/* McBSP internal signal muxing functions */
|
|
|
|
void omap2_mcbsp1_mux_clkr_src(u8 mux)
|
|
{
|
|
u32 v;
|
|
|
|
v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
|
|
if (mux == CLKR_SRC_CLKR)
|
|
v &= ~OMAP2_MCBSP1_CLKR_MASK;
|
|
else if (mux == CLKR_SRC_CLKX)
|
|
v |= OMAP2_MCBSP1_CLKR_MASK;
|
|
omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0);
|
|
}
|
|
EXPORT_SYMBOL(omap2_mcbsp1_mux_clkr_src);
|
|
|
|
void omap2_mcbsp1_mux_fsr_src(u8 mux)
|
|
{
|
|
u32 v;
|
|
|
|
v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
|
|
if (mux == FSR_SRC_FSR)
|
|
v &= ~OMAP2_MCBSP1_FSR_MASK;
|
|
else if (mux == FSR_SRC_FSX)
|
|
v |= OMAP2_MCBSP1_FSR_MASK;
|
|
omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0);
|
|
}
|
|
EXPORT_SYMBOL(omap2_mcbsp1_mux_fsr_src);
|
|
|
|
/* McBSP CLKS source switching function */
|
|
|
|
int omap2_mcbsp_set_clks_src(u8 id, u8 fck_src_id)
|
|
{
|
|
struct omap_mcbsp *mcbsp;
|
|
struct clk *fck_src;
|
|
char *fck_src_name;
|
|
int r;
|
|
|
|
if (!omap_mcbsp_check_valid_id(id)) {
|
|
pr_err("%s: Invalid id (%d)\n", __func__, id + 1);
|
|
return -EINVAL;
|
|
}
|
|
mcbsp = id_to_mcbsp_ptr(id);
|
|
|
|
if (fck_src_id == MCBSP_CLKS_PAD_SRC)
|
|
fck_src_name = "pad_fck";
|
|
else if (fck_src_id == MCBSP_CLKS_PRCM_SRC)
|
|
fck_src_name = "prcm_fck";
|
|
else
|
|
return -EINVAL;
|
|
|
|
fck_src = clk_get(mcbsp->dev, fck_src_name);
|
|
if (IS_ERR_OR_NULL(fck_src)) {
|
|
pr_err("omap-mcbsp: %s: could not clk_get() %s\n", "clks",
|
|
fck_src_name);
|
|
return -EINVAL;
|
|
}
|
|
|
|
clk_disable(mcbsp->fclk);
|
|
|
|
r = clk_set_parent(mcbsp->fclk, fck_src);
|
|
if (IS_ERR_VALUE(r)) {
|
|
pr_err("omap-mcbsp: %s: could not clk_set_parent() to %s\n",
|
|
"clks", fck_src_name);
|
|
clk_put(fck_src);
|
|
return -EINVAL;
|
|
}
|
|
|
|
clk_enable(mcbsp->fclk);
|
|
|
|
clk_put(fck_src);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(omap2_mcbsp_set_clks_src);
|
|
|
|
|
|
/* Platform data */
|
|
|
|
#ifdef CONFIG_ARCH_OMAP2420
|
|
static struct omap_mcbsp_platform_data omap2420_mcbsp_pdata[] = {
|
|
{
|
|
.phys_base = OMAP24XX_MCBSP1_BASE,
|
|
.dma_rx_sync = OMAP24XX_DMA_MCBSP1_RX,
|
|
.dma_tx_sync = OMAP24XX_DMA_MCBSP1_TX,
|
|
.rx_irq = INT_24XX_MCBSP1_IRQ_RX,
|
|
.tx_irq = INT_24XX_MCBSP1_IRQ_TX,
|
|
},
|
|
{
|
|
.phys_base = OMAP24XX_MCBSP2_BASE,
|
|
.dma_rx_sync = OMAP24XX_DMA_MCBSP2_RX,
|
|
.dma_tx_sync = OMAP24XX_DMA_MCBSP2_TX,
|
|
.rx_irq = INT_24XX_MCBSP2_IRQ_RX,
|
|
.tx_irq = INT_24XX_MCBSP2_IRQ_TX,
|
|
},
|
|
};
|
|
#define OMAP2420_MCBSP_PDATA_SZ ARRAY_SIZE(omap2420_mcbsp_pdata)
|
|
#define OMAP2420_MCBSP_REG_NUM (OMAP_MCBSP_REG_RCCR / sizeof(u32) + 1)
|
|
#else
|
|
#define omap2420_mcbsp_pdata NULL
|
|
#define OMAP2420_MCBSP_PDATA_SZ 0
|
|
#define OMAP2420_MCBSP_REG_NUM 0
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_OMAP2430
|
|
static struct omap_mcbsp_platform_data omap2430_mcbsp_pdata[] = {
|
|
{
|
|
.phys_base = OMAP24XX_MCBSP1_BASE,
|
|
.dma_rx_sync = OMAP24XX_DMA_MCBSP1_RX,
|
|
.dma_tx_sync = OMAP24XX_DMA_MCBSP1_TX,
|
|
.rx_irq = INT_24XX_MCBSP1_IRQ_RX,
|
|
.tx_irq = INT_24XX_MCBSP1_IRQ_TX,
|
|
},
|
|
{
|
|
.phys_base = OMAP24XX_MCBSP2_BASE,
|
|
.dma_rx_sync = OMAP24XX_DMA_MCBSP2_RX,
|
|
.dma_tx_sync = OMAP24XX_DMA_MCBSP2_TX,
|
|
.rx_irq = INT_24XX_MCBSP2_IRQ_RX,
|
|
.tx_irq = INT_24XX_MCBSP2_IRQ_TX,
|
|
},
|
|
{
|
|
.phys_base = OMAP2430_MCBSP3_BASE,
|
|
.dma_rx_sync = OMAP24XX_DMA_MCBSP3_RX,
|
|
.dma_tx_sync = OMAP24XX_DMA_MCBSP3_TX,
|
|
.rx_irq = INT_24XX_MCBSP3_IRQ_RX,
|
|
.tx_irq = INT_24XX_MCBSP3_IRQ_TX,
|
|
},
|
|
{
|
|
.phys_base = OMAP2430_MCBSP4_BASE,
|
|
.dma_rx_sync = OMAP24XX_DMA_MCBSP4_RX,
|
|
.dma_tx_sync = OMAP24XX_DMA_MCBSP4_TX,
|
|
.rx_irq = INT_24XX_MCBSP4_IRQ_RX,
|
|
.tx_irq = INT_24XX_MCBSP4_IRQ_TX,
|
|
},
|
|
{
|
|
.phys_base = OMAP2430_MCBSP5_BASE,
|
|
.dma_rx_sync = OMAP24XX_DMA_MCBSP5_RX,
|
|
.dma_tx_sync = OMAP24XX_DMA_MCBSP5_TX,
|
|
.rx_irq = INT_24XX_MCBSP5_IRQ_RX,
|
|
.tx_irq = INT_24XX_MCBSP5_IRQ_TX,
|
|
},
|
|
};
|
|
#define OMAP2430_MCBSP_PDATA_SZ ARRAY_SIZE(omap2430_mcbsp_pdata)
|
|
#define OMAP2430_MCBSP_REG_NUM (OMAP_MCBSP_REG_RCCR / sizeof(u32) + 1)
|
|
#else
|
|
#define omap2430_mcbsp_pdata NULL
|
|
#define OMAP2430_MCBSP_PDATA_SZ 0
|
|
#define OMAP2430_MCBSP_REG_NUM 0
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_OMAP3
|
|
static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
|
|
{
|
|
.phys_base = OMAP34XX_MCBSP1_BASE,
|
|
.dma_rx_sync = OMAP24XX_DMA_MCBSP1_RX,
|
|
.dma_tx_sync = OMAP24XX_DMA_MCBSP1_TX,
|
|
.rx_irq = INT_24XX_MCBSP1_IRQ_RX,
|
|
.tx_irq = INT_24XX_MCBSP1_IRQ_TX,
|
|
.buffer_size = 0x80, /* The FIFO has 128 locations */
|
|
},
|
|
{
|
|
.phys_base = OMAP34XX_MCBSP2_BASE,
|
|
.phys_base_st = OMAP34XX_MCBSP2_ST_BASE,
|
|
.dma_rx_sync = OMAP24XX_DMA_MCBSP2_RX,
|
|
.dma_tx_sync = OMAP24XX_DMA_MCBSP2_TX,
|
|
.rx_irq = INT_24XX_MCBSP2_IRQ_RX,
|
|
.tx_irq = INT_24XX_MCBSP2_IRQ_TX,
|
|
.buffer_size = 0x500, /* The FIFO has 1024 + 256 locations */
|
|
},
|
|
{
|
|
.phys_base = OMAP34XX_MCBSP3_BASE,
|
|
.phys_base_st = OMAP34XX_MCBSP3_ST_BASE,
|
|
.dma_rx_sync = OMAP24XX_DMA_MCBSP3_RX,
|
|
.dma_tx_sync = OMAP24XX_DMA_MCBSP3_TX,
|
|
.rx_irq = INT_24XX_MCBSP3_IRQ_RX,
|
|
.tx_irq = INT_24XX_MCBSP3_IRQ_TX,
|
|
.buffer_size = 0x80, /* The FIFO has 128 locations */
|
|
},
|
|
{
|
|
.phys_base = OMAP34XX_MCBSP4_BASE,
|
|
.dma_rx_sync = OMAP24XX_DMA_MCBSP4_RX,
|
|
.dma_tx_sync = OMAP24XX_DMA_MCBSP4_TX,
|
|
.rx_irq = INT_24XX_MCBSP4_IRQ_RX,
|
|
.tx_irq = INT_24XX_MCBSP4_IRQ_TX,
|
|
.buffer_size = 0x80, /* The FIFO has 128 locations */
|
|
},
|
|
{
|
|
.phys_base = OMAP34XX_MCBSP5_BASE,
|
|
.dma_rx_sync = OMAP24XX_DMA_MCBSP5_RX,
|
|
.dma_tx_sync = OMAP24XX_DMA_MCBSP5_TX,
|
|
.rx_irq = INT_24XX_MCBSP5_IRQ_RX,
|
|
.tx_irq = INT_24XX_MCBSP5_IRQ_TX,
|
|
.buffer_size = 0x80, /* The FIFO has 128 locations */
|
|
},
|
|
};
|
|
#define OMAP34XX_MCBSP_PDATA_SZ ARRAY_SIZE(omap34xx_mcbsp_pdata)
|
|
#define OMAP34XX_MCBSP_REG_NUM (OMAP_MCBSP_REG_RCCR / sizeof(u32) + 1)
|
|
#else
|
|
#define omap34xx_mcbsp_pdata NULL
|
|
#define OMAP34XX_MCBSP_PDATA_SZ 0
|
|
#define OMAP34XX_MCBSP_REG_NUM 0
|
|
#endif
|
|
|
|
static struct omap_mcbsp_platform_data omap44xx_mcbsp_pdata[] = {
|
|
{
|
|
.phys_base = OMAP44XX_MCBSP1_BASE,
|
|
.dma_rx_sync = OMAP44XX_DMA_MCBSP1_RX,
|
|
.dma_tx_sync = OMAP44XX_DMA_MCBSP1_TX,
|
|
.tx_irq = OMAP44XX_IRQ_MCBSP1,
|
|
},
|
|
{
|
|
.phys_base = OMAP44XX_MCBSP2_BASE,
|
|
.dma_rx_sync = OMAP44XX_DMA_MCBSP2_RX,
|
|
.dma_tx_sync = OMAP44XX_DMA_MCBSP2_TX,
|
|
.tx_irq = OMAP44XX_IRQ_MCBSP2,
|
|
},
|
|
{
|
|
.phys_base = OMAP44XX_MCBSP3_BASE,
|
|
.dma_rx_sync = OMAP44XX_DMA_MCBSP3_RX,
|
|
.dma_tx_sync = OMAP44XX_DMA_MCBSP3_TX,
|
|
.tx_irq = OMAP44XX_IRQ_MCBSP3,
|
|
},
|
|
{
|
|
.phys_base = OMAP44XX_MCBSP4_BASE,
|
|
.dma_rx_sync = OMAP44XX_DMA_MCBSP4_RX,
|
|
.dma_tx_sync = OMAP44XX_DMA_MCBSP4_TX,
|
|
.tx_irq = OMAP44XX_IRQ_MCBSP4,
|
|
},
|
|
};
|
|
#define OMAP44XX_MCBSP_PDATA_SZ ARRAY_SIZE(omap44xx_mcbsp_pdata)
|
|
#define OMAP44XX_MCBSP_REG_NUM (OMAP_MCBSP_REG_RCCR / sizeof(u32) + 1)
|
|
|
|
static int __init omap2_mcbsp_init(void)
|
|
{
|
|
if (cpu_is_omap2420()) {
|
|
omap_mcbsp_count = OMAP2420_MCBSP_PDATA_SZ;
|
|
omap_mcbsp_cache_size = OMAP2420_MCBSP_REG_NUM * sizeof(u16);
|
|
} else if (cpu_is_omap2430()) {
|
|
omap_mcbsp_count = OMAP2430_MCBSP_PDATA_SZ;
|
|
omap_mcbsp_cache_size = OMAP2430_MCBSP_REG_NUM * sizeof(u32);
|
|
} else if (cpu_is_omap34xx()) {
|
|
omap_mcbsp_count = OMAP34XX_MCBSP_PDATA_SZ;
|
|
omap_mcbsp_cache_size = OMAP34XX_MCBSP_REG_NUM * sizeof(u32);
|
|
} else if (cpu_is_omap44xx()) {
|
|
omap_mcbsp_count = OMAP44XX_MCBSP_PDATA_SZ;
|
|
omap_mcbsp_cache_size = OMAP44XX_MCBSP_REG_NUM * sizeof(u32);
|
|
}
|
|
|
|
mcbsp_ptr = kzalloc(omap_mcbsp_count * sizeof(struct omap_mcbsp *),
|
|
GFP_KERNEL);
|
|
if (!mcbsp_ptr)
|
|
return -ENOMEM;
|
|
|
|
if (cpu_is_omap2420())
|
|
omap_mcbsp_register_board_cfg(omap2420_mcbsp_pdata,
|
|
OMAP2420_MCBSP_PDATA_SZ);
|
|
if (cpu_is_omap2430())
|
|
omap_mcbsp_register_board_cfg(omap2430_mcbsp_pdata,
|
|
OMAP2430_MCBSP_PDATA_SZ);
|
|
if (cpu_is_omap34xx())
|
|
omap_mcbsp_register_board_cfg(omap34xx_mcbsp_pdata,
|
|
OMAP34XX_MCBSP_PDATA_SZ);
|
|
if (cpu_is_omap44xx())
|
|
omap_mcbsp_register_board_cfg(omap44xx_mcbsp_pdata,
|
|
OMAP44XX_MCBSP_PDATA_SZ);
|
|
|
|
return omap_mcbsp_init();
|
|
}
|
|
arch_initcall(omap2_mcbsp_init);
|