* Chandra shekhar <x0044955@xxxxxx> [080616 15:23]:
>
> Signed-off-by: chandra shekhar <x0044955@xxxxxx>
> ---
> arch/arm/configs/omap_3430sdp_defconfig | 1
> arch/arm/mach-omap2/mcbsp.c | 45 ++++++++++++++++++++++++++++++++
> arch/arm/plat-omap/mcbsp.c | 2 -
> include/asm-arm/arch-omap/mcbsp.h | 34 ++++++++++++++++++++++--
> 4 files changed, 79 insertions(+), 3 deletions(-)
>
> Index: linux-omap-2.6/include/asm-arm/arch-omap/mcbsp.h
> ===================================================================
> --- linux-omap-2.6.orig/include/asm-arm/arch-omap/mcbsp.h 2008-06-14 16:40:58.012054175 +0530
> +++ linux-omap-2.6/include/asm-arm/arch-omap/mcbsp.h 2008-06-14 16:51:20.795567825 +0530
> @@ -46,6 +46,9 @@
>
> #define OMAP34XX_MCBSP1_BASE 0x48074000
> #define OMAP34XX_MCBSP2_BASE 0x49022000
> +#define OMAP34XX_MCBSP3_BASE 0x49024000
> +#define OMAP34XX_MCBSP4_BASE 0x49026000
> +#define OMAP34XX_MCBSP5_BASE 0x48096000
>
> #if defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP730)
>
> @@ -97,6 +100,8 @@
> #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
> @@ -124,8 +129,10 @@
> #define OMAP_MCBSP_REG_RCERH 0x70
> #define OMAP_MCBSP_REG_XCERG 0x74
> #define OMAP_MCBSP_REG_XCERH 0x78
> +#define OMAP_MCBSP_REG_SYSCON 0x8C
> +#define OMAP_MCBSP_REG_XCCR 0xAC
> +#define OMAP_MCBSP_REG_RCCR 0xB0
>
> -#define OMAP_MAX_MCBSP_COUNT 2
> #define MAX_MCBSP_CLOCKS 2
>
> #define AUDIO_MCBSP_DATAWRITE (OMAP24XX_MCBSP2_BASE + OMAP_MCBSP_REG_DXR1)
> @@ -135,11 +142,18 @@
> #define AUDIO_DMA_TX OMAP24XX_DMA_MCBSP2_TX
> #define AUDIO_DMA_RX OMAP24XX_DMA_MCBSP2_RX
>
> +#if defined CONFIG_ARCH_OMAP2420
> +#define OMAP_MAX_MCBSP_COUNT 2
> +#else
> +#define OMAP_MAX_MCBSP_COUNT 5
> +#endif
> +
This count needs to be set dynamically during init using
if (cpu_is_omap34xx()). Otherwise compiling in support for
24xx and 34xx into the same kernel will fail to boot properly.
> #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)
>
> +#define OMAP_MCBSP_BIT(ARG) ((0x01)<<(ARG))
Please add spaces around the << above. Also, 0x01 does not need to be
in braces.
>
> /************************** McBSP SPCR1 bit definitions ***********************/
> #define RRST 0x0001
> @@ -151,6 +165,7 @@
> #define DXENA 0x0080
> #define CLKSTP(value) ((value)<<11) /* bits 11:12 */
> #define RJUST(value) ((value)<<13) /* bits 13:14 */
Spaces around the << here too.
> +#define ALB 0x8000
> #define DLB 0x8000
>
> /************************** McBSP SPCR2 bit definitions ***********************/
> @@ -228,6 +243,19 @@
> #define XPABLK(value) ((value)<<5) /* Bits 5:6 */
> #define XPBBLK(value) ((value)<<7) /* Bits 7:8 */
Here too.
> +/*********************** McBSP XCCR bit definitions *************************/
> +#define DILB OMAP_MCBSP_BIT(5)
> +#define XDMAEN OMAP_MCBSP_BIT(3)
> +#define XDISABLE OMAP_MCBSP_BIT(0)
> +
> +/********************** McBSP RCCR bit definitions *************************/
> +#define RDMAEN OMAP_MCBSP_BIT(3)
> +#define RDISABLE OMAP_MCBSP_BIT(0)
> +
> +/********************** McBSP SYSCONFIG bit definitions ********************/
> +#define SOFTRST OMAP_MCBSP_BIT(1)
> +
> +/********************** MACRO DEFINITIONS *********************************/
>
> /* we don't do multichannel for now */
> struct omap_mcbsp_reg_cfg {
> @@ -260,6 +288,8 @@ typedef enum {
> OMAP_MCBSP1 = 0,
> OMAP_MCBSP2,
> OMAP_MCBSP3,
> + OMAP_MCBSP4,
> + OMAP_MCBSP5
> } omap_mcbsp_id;
>
> typedef int __bitwise omap_mcbsp_io_type_t;
> @@ -352,6 +382,7 @@ struct omap_mcbsp {
> struct omap_mcbsp_platform_data *pdata;
> struct clk *clk;
> };
> +extern struct omap_mcbsp mcbsp[OMAP_MAX_MCBSP_COUNT];
>
> int omap_mcbsp_init(void);
> void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config,
> @@ -369,7 +400,6 @@ int omap_mcbsp_recv_buffer(unsigned int
> int omap_mcbsp_spi_master_xmit_word_poll(unsigned int id, u32 word);
> int omap_mcbsp_spi_master_recv_word_poll(unsigned int id, u32 * word);
>
> -
> /* SPI specific API */
> void omap_mcbsp_set_spi_mode(unsigned int id, const struct omap_mcbsp_spi_cfg * spi_cfg);
>
> Index: linux-omap-2.6/arch/arm/mach-omap2/mcbsp.c
> ===================================================================
> --- linux-omap-2.6.orig/arch/arm/mach-omap2/mcbsp.c 2008-06-14 16:40:58.012054175 +0530
> +++ linux-omap-2.6/arch/arm/mach-omap2/mcbsp.c 2008-06-14 16:41:38.126799140 +0530
> @@ -89,6 +89,30 @@ static struct mcbsp_internal_clk omap_mc
> .disable = omap_mcbsp_clk_disable,
> },
> },
> + {
> + .clk = {
> + .name = "mcbsp_clk",
> + .id = 3,
> + .enable = omap_mcbsp_clk_enable,
> + .disable = omap_mcbsp_clk_disable,
> + },
> + },
> + {
> + .clk = {
> + .name = "mcbsp_clk",
> + .id = 4,
> + .enable = omap_mcbsp_clk_enable,
> + .disable = omap_mcbsp_clk_disable,
> + },
> + },
> + {
> + .clk = {
> + .name = "mcbsp_clk",
> + .id = 5,
> + .enable = omap_mcbsp_clk_enable,
> + .disable = omap_mcbsp_clk_disable,
> + },
> + },
> };
>
> #define omap_mcbsp_clks_size ARRAY_SIZE(omap_mcbsp_clks)
> @@ -178,6 +202,27 @@ static struct omap_mcbsp_platform_data o
> .ops = &omap2_mcbsp_ops,
> .clk_name = "mcbsp_clk",
> },
> + {
> + .virt_base = IO_ADDRESS(OMAP34XX_MCBSP3_BASE),
> + .dma_rx_sync = OMAP24XX_DMA_MCBSP3_RX,
> + .dma_tx_sync = OMAP24XX_DMA_MCBSP3_TX,
> + .ops = &omap2_mcbsp_ops,
> + .clk_name = "mcbsp_clk",
> + },
> + {
> + .virt_base = IO_ADDRESS(OMAP34XX_MCBSP4_BASE),
> + .dma_rx_sync = OMAP24XX_DMA_MCBSP4_RX,
> + .dma_tx_sync = OMAP24XX_DMA_MCBSP4_TX,
> + .ops = &omap2_mcbsp_ops,
> + .clk_name = "mcbsp_clk",
> + },
> + {
> + .virt_base = IO_ADDRESS(OMAP34XX_MCBSP5_BASE),
> + .dma_rx_sync = OMAP24XX_DMA_MCBSP5_RX,
> + .dma_tx_sync = OMAP24XX_DMA_MCBSP5_TX,
> + .ops = &omap2_mcbsp_ops,
> + .clk_name = "mcbsp_clk",
> + },
> };
Can you please change the above to use OMAP2_IO_ADDRESS() instead of
IO_ADDRESS()? That way we don't need to patch it again for multi-omap
in the future :)
> #define OMAP34XX_MCBSP_PDATA_SZ ARRAY_SIZE(omap34xx_mcbsp_pdata)
> #else
> Index: linux-omap-2.6/arch/arm/configs/omap_3430sdp_defconfig
> ===================================================================
> --- linux-omap-2.6.orig/arch/arm/configs/omap_3430sdp_defconfig 2008-06-14 16:40:58.012054175 +0530
> +++ linux-omap-2.6/arch/arm/configs/omap_3430sdp_defconfig 2008-06-14 16:41:38.127799108 +0530
> @@ -522,6 +522,7 @@ CONFIG_MISC_DEVICES=y
> # CONFIG_EEPROM_93CX6 is not set
> # CONFIG_OMAP_STI is not set
> # CONFIG_ENCLOSURE_SERVICES is not set
> +CONFIG_OMAP_MCBSP=y
> CONFIG_HAVE_IDE=y
> # CONFIG_IDE is not set
>
> Index: linux-omap-2.6/arch/arm/plat-omap/mcbsp.c
> ===================================================================
> --- linux-omap-2.6.orig/arch/arm/plat-omap/mcbsp.c 2008-06-14 16:40:58.012054175 +0530
> +++ linux-omap-2.6/arch/arm/plat-omap/mcbsp.c 2008-06-14 16:41:38.127799108 +0530
> @@ -28,7 +28,7 @@
> #include <asm/arch/dma.h>
> #include <asm/arch/mcbsp.h>
>
> -static struct omap_mcbsp mcbsp[OMAP_MAX_MCBSP_COUNT];
> +struct omap_mcbsp mcbsp[OMAP_MAX_MCBSP_COUNT];
Can you please change it to kzalloc the needed number of ports? You
might want to do that as a separate patch first before adding support
for 34xx.
Regards,
Tony
>
> #define omap_mcbsp_check_valid_id(id) (mcbsp[id].pdata && \
> mcbsp[id].pdata->ops && \
>
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