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ARM: OMAP: Allocate McBSP devices dynamically

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Based on Chandra's earlier patches in linux-omap tree.

Note that omap1_mcbsp_check and omap2_mcbsp_check are no longer
needed as there's now omap_mcbsp_check_valid_id() defined.

Also some functions can now be marked __init.

Signed-off-by: Chandra Shekhar <x0044955@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Chandra Shekhar
2008-10-08 10:01:39 +03:00
committed by Tony Lindgren
parent 25cef22514
commit b4b58f5834
4 changed files with 270 additions and 216 deletions
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33
arch/arm/plat-omap/include/mach/mcbsp.h
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@ -81,9 +81,6 @@
#define OMAP_MCBSP_REG_XCERG 0x3A
#define OMAP_MCBSP_REG_XCERH 0x3C
#define OMAP_MAX_MCBSP_COUNT 3
#define MAX_MCBSP_CLOCKS 3
#define AUDIO_MCBSP_DATAWRITE (OMAP1510_MCBSP1_BASE + OMAP_MCBSP_REG_DXR1)
#define AUDIO_MCBSP_DATAREAD (OMAP1510_MCBSP1_BASE + OMAP_MCBSP_REG_DRR1)
@ -91,12 +88,14 @@
#define AUDIO_DMA_TX OMAP_DMA_MCBSP1_TX
#define AUDIO_DMA_RX OMAP_DMA_MCBSP1_RX
#elif defined(CONFIG_ARCH_OMAP24XX)
#elif defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
#define OMAP_MCBSP_REG_DRR2 0x00
#define OMAP_MCBSP_REG_DRR1 0x04
#define OMAP_MCBSP_REG_DXR2 0x08
#define OMAP_MCBSP_REG_DXR1 0x0C
#define OMAP_MCBSP_REG_DRR 0x00
#define OMAP_MCBSP_REG_DXR 0x08
#define OMAP_MCBSP_REG_SPCR2 0x10
#define OMAP_MCBSP_REG_SPCR1 0x14
#define OMAP_MCBSP_REG_RCR2 0x18
@ -124,9 +123,9 @@
#define OMAP_MCBSP_REG_RCERH 0x70
#define OMAP_MCBSP_REG_XCERG 0x74
#define OMAP_MCBSP_REG_XCERH 0x78
#define OMAP_MAX_MCBSP_COUNT 2
#define MAX_MCBSP_CLOCKS 2
#define OMAP_MCBSP_REG_SYSCON 0x8C
#define OMAP_MCBSP_REG_XCCR 0xAC
#define OMAP_MCBSP_REG_RCCR 0xB0
#define AUDIO_MCBSP_DATAWRITE (OMAP24XX_MCBSP2_BASE + OMAP_MCBSP_REG_DXR1)
#define AUDIO_MCBSP_DATAREAD (OMAP24XX_MCBSP2_BASE + OMAP_MCBSP_REG_DRR1)
@ -137,10 +136,6 @@
#endif
#define OMAP_MCBSP_READ(base, reg) __raw_readw((base) + OMAP_MCBSP_REG_##reg)
#define OMAP_MCBSP_WRITE(base, reg, val) __raw_writew((val), (base) + OMAP_MCBSP_REG_##reg)
/************************** McBSP SPCR1 bit definitions ***********************/
#define RRST 0x0001
#define RRDY 0x0002
@ -151,6 +146,7 @@
#define DXENA 0x0080
#define CLKSTP(value) ((value)<<11) /* bits 11:12 */
#define RJUST(value) ((value)<<13) /* bits 13:14 */
#define ALB 0x8000
#define DLB 0x8000
/************************** McBSP SPCR2 bit definitions ***********************/
@ -228,6 +224,17 @@
#define XPABLK(value) ((value)<<5) /* Bits 5:6 */
#define XPBBLK(value) ((value)<<7) /* Bits 7:8 */
/*********************** McBSP XCCR bit definitions *************************/
#define DILB 0x0020
#define XDMAEN 0x0008
#define XDISABLE 0x0001
/********************** McBSP RCCR bit definitions *************************/
#define RDMAEN 0x0008
#define RDISABLE 0x0001
/********************** McBSP SYSCONFIG bit definitions ********************/
#define SOFTRST 0x0002
/* we don't do multichannel for now */
struct omap_mcbsp_reg_cfg {
@ -311,7 +318,6 @@ struct omap_mcbsp_spi_cfg {
struct omap_mcbsp_ops {
void (*request)(unsigned int);
void (*free)(unsigned int);
int (*check)(unsigned int);
};
struct omap_mcbsp_platform_data {
@ -353,6 +359,8 @@ struct omap_mcbsp {
struct omap_mcbsp_platform_data *pdata;
struct clk *clk;
};
extern struct omap_mcbsp **mcbsp_ptr;
extern int omap_mcbsp_count;
int omap_mcbsp_init(void);
void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config,
@ -377,5 +385,6 @@ void omap_mcbsp_set_spi_mode(unsigned int id, const struct omap_mcbsp_spi_cfg *
/* Polled read/write functions */
int omap_mcbsp_pollread(unsigned int id, u16 * buf);
int omap_mcbsp_pollwrite(unsigned int id, u16 buf);
int omap_mcbsp_set_io_type(unsigned int id, omap_mcbsp_io_type_t io_type);
#endif