Hemant Pedanekar <[email protected]> writes:
> This patch adds platform data and init function for IDE which could be called
> from board specific file to register IDE device.
>
> Note that for 594MHz device the transfer mode is limited to UDMA4 since ideclk
> rate is less than 100 MHz, which forces udma_mask in palm_bk3710.c to UDMA4,
> while for 729MHz device, it is UDMA5.
>
> Signed-off-by: Hemant Pedanekar <[email protected]>
Thanks, pushing to davinci git.
Kevin
> ---
> arch/arm/mach-davinci/dm646x.c | 32
> +++++++++++++++++++++++++++
> arch/arm/mach-davinci/include/mach/dm646x.h | 3 ++
> 2 files changed, 35 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
> index 7e2c036..40512b9 100644
> --- a/arch/arm/mach-davinci/dm646x.c
> +++ b/arch/arm/mach-davinci/dm646x.c
> @@ -596,6 +596,32 @@ static struct platform_device dm646x_edma_device = {
> .resource = edma_resources,
> };
>
> +static struct resource ide_resources[] = {
> + {
> + .start = DM646X_ATA_REG_BASE,
> + .end = DM646X_ATA_REG_BASE + 0x7ff,
> + .flags = IORESOURCE_MEM,
> + },
> + {
> + .start = IRQ_DM646X_IDE,
> + .end = IRQ_DM646X_IDE,
> + .flags = IORESOURCE_IRQ,
> + },
> +};
> +
> +static u64 ide_dma_mask = DMA_BIT_MASK(32);
> +
> +static struct platform_device ide_dev = {
> + .name = "palm_bk3710",
> + .id = -1,
> + .resource = ide_resources,
> + .num_resources = ARRAY_SIZE(ide_resources),
> + .dev = {
> + .dma_mask = &ide_dma_mask,
> + .coherent_dma_mask = DMA_BIT_MASK(32),
> + },
> +};
> +
> static struct resource dm646x_mcasp0_resources[] = {
> {
> .name = "mcasp0",
> @@ -765,6 +791,12 @@ static struct davinci_soc_info davinci_soc_info_dm646x =
> {
> .sram_len = SZ_32K,
> };
>
> +void __init dm646x_init_ide()
> +{
> + davinci_cfg_reg(DM646X_ATAEN);
> + platform_device_register(&ide_dev);
> +}
> +
> void __init dm646x_init_mcasp0(struct snd_platform_data *pdata)
> {
> dm646x_mcasp0_device.dev.platform_data = pdata;
> diff --git a/arch/arm/mach-davinci/include/mach/dm646x.h
> b/arch/arm/mach-davinci/include/mach/dm646x.h
> index 0585484..feb1e02 100644
> --- a/arch/arm/mach-davinci/include/mach/dm646x.h
> +++ b/arch/arm/mach-davinci/include/mach/dm646x.h
> @@ -22,7 +22,10 @@
> #define DM646X_EMAC_MDIO_OFFSET (0x4000)
> #define DM646X_EMAC_CNTRL_RAM_SIZE (0x2000)
>
> +#define DM646X_ATA_REG_BASE (0x01C66000)
> +
> void __init dm646x_init(void);
> +void __init dm646x_init_ide(void);
> void __init dm646x_init_mcasp0(struct snd_platform_data *pdata);
> void __init dm646x_init_mcasp1(struct snd_platform_data *pdata);
>
> --
> 1.6.2.4
>
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