[ARM] 4754/1: [AT91] SSC library support
Core support of the Atmel SSC library for all Atmel AT91 processors. Based on David Brownell's initial patch for the AT91RM9200. Signed-off-by: Andrew Victor <linux@maxim.org.za> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Andrew Victor
Russell King
Родитель
c6686ff9df
Коммит
bfbc32663d
|
|
@ -635,6 +635,179 @@ void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
|
|||
#endif
|
||||
|
||||
|
||||
/* --------------------------------------------------------------------
|
||||
* SSC -- Synchronous Serial Controller
|
||||
* -------------------------------------------------------------------- */
|
||||
|
||||
#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
|
||||
static u64 ssc0_dmamask = DMA_BIT_MASK(32);
|
||||
|
||||
static struct resource ssc0_resources[] = {
|
||||
[0] = {
|
||||
.start = AT91RM9200_BASE_SSC0,
|
||||
.end = AT91RM9200_BASE_SSC0 + SZ_16K - 1,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
[1] = {
|
||||
.start = AT91RM9200_ID_SSC0,
|
||||
.end = AT91RM9200_ID_SSC0,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device at91rm9200_ssc0_device = {
|
||||
.name = "ssc",
|
||||
.id = 0,
|
||||
.dev = {
|
||||
.dma_mask = &ssc0_dmamask,
|
||||
.coherent_dma_mask = DMA_BIT_MASK(32),
|
||||
},
|
||||
.resource = ssc0_resources,
|
||||
.num_resources = ARRAY_SIZE(ssc0_resources),
|
||||
};
|
||||
|
||||
static inline void configure_ssc0_pins(unsigned pins)
|
||||
{
|
||||
if (pins & ATMEL_SSC_TF)
|
||||
at91_set_A_periph(AT91_PIN_PB0, 1);
|
||||
if (pins & ATMEL_SSC_TK)
|
||||
at91_set_A_periph(AT91_PIN_PB1, 1);
|
||||
if (pins & ATMEL_SSC_TD)
|
||||
at91_set_A_periph(AT91_PIN_PB2, 1);
|
||||
if (pins & ATMEL_SSC_RD)
|
||||
at91_set_A_periph(AT91_PIN_PB3, 1);
|
||||
if (pins & ATMEL_SSC_RK)
|
||||
at91_set_A_periph(AT91_PIN_PB4, 1);
|
||||
if (pins & ATMEL_SSC_RF)
|
||||
at91_set_A_periph(AT91_PIN_PB5, 1);
|
||||
}
|
||||
|
||||
static u64 ssc1_dmamask = DMA_BIT_MASK(32);
|
||||
|
||||
static struct resource ssc1_resources[] = {
|
||||
[0] = {
|
||||
.start = AT91RM9200_BASE_SSC1,
|
||||
.end = AT91RM9200_BASE_SSC1 + SZ_16K - 1,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
[1] = {
|
||||
.start = AT91RM9200_ID_SSC1,
|
||||
.end = AT91RM9200_ID_SSC1,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device at91rm9200_ssc1_device = {
|
||||
.name = "ssc",
|
||||
.id = 1,
|
||||
.dev = {
|
||||
.dma_mask = &ssc1_dmamask,
|
||||
.coherent_dma_mask = DMA_BIT_MASK(32),
|
||||
},
|
||||
.resource = ssc1_resources,
|
||||
.num_resources = ARRAY_SIZE(ssc1_resources),
|
||||
};
|
||||
|
||||
static inline void configure_ssc1_pins(unsigned pins)
|
||||
{
|
||||
if (pins & ATMEL_SSC_TF)
|
||||
at91_set_A_periph(AT91_PIN_PB6, 1);
|
||||
if (pins & ATMEL_SSC_TK)
|
||||
at91_set_A_periph(AT91_PIN_PB7, 1);
|
||||
if (pins & ATMEL_SSC_TD)
|
||||
at91_set_A_periph(AT91_PIN_PB8, 1);
|
||||
if (pins & ATMEL_SSC_RD)
|
||||
at91_set_A_periph(AT91_PIN_PB9, 1);
|
||||
if (pins & ATMEL_SSC_RK)
|
||||
at91_set_A_periph(AT91_PIN_PB10, 1);
|
||||
if (pins & ATMEL_SSC_RF)
|
||||
at91_set_A_periph(AT91_PIN_PB11, 1);
|
||||
}
|
||||
|
||||
static u64 ssc2_dmamask = DMA_BIT_MASK(32);
|
||||
|
||||
static struct resource ssc2_resources[] = {
|
||||
[0] = {
|
||||
.start = AT91RM9200_BASE_SSC2,
|
||||
.end = AT91RM9200_BASE_SSC2 + SZ_16K - 1,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
[1] = {
|
||||
.start = AT91RM9200_ID_SSC2,
|
||||
.end = AT91RM9200_ID_SSC2,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device at91rm9200_ssc2_device = {
|
||||
.name = "ssc",
|
||||
.id = 2,
|
||||
.dev = {
|
||||
.dma_mask = &ssc2_dmamask,
|
||||
.coherent_dma_mask = DMA_BIT_MASK(32),
|
||||
},
|
||||
.resource = ssc2_resources,
|
||||
.num_resources = ARRAY_SIZE(ssc2_resources),
|
||||
};
|
||||
|
||||
static inline void configure_ssc2_pins(unsigned pins)
|
||||
{
|
||||
if (pins & ATMEL_SSC_TF)
|
||||
at91_set_A_periph(AT91_PIN_PB12, 1);
|
||||
if (pins & ATMEL_SSC_TK)
|
||||
at91_set_A_periph(AT91_PIN_PB13, 1);
|
||||
if (pins & ATMEL_SSC_TD)
|
||||
at91_set_A_periph(AT91_PIN_PB14, 1);
|
||||
if (pins & ATMEL_SSC_RD)
|
||||
at91_set_A_periph(AT91_PIN_PB15, 1);
|
||||
if (pins & ATMEL_SSC_RK)
|
||||
at91_set_A_periph(AT91_PIN_PB16, 1);
|
||||
if (pins & ATMEL_SSC_RF)
|
||||
at91_set_A_periph(AT91_PIN_PB17, 1);
|
||||
}
|
||||
|
||||
/*
|
||||
* SSC controllers are accessed through library code, instead of any
|
||||
* kind of all-singing/all-dancing driver. For example one could be
|
||||
* used by a particular I2S audio codec's driver, while another one
|
||||
* on the same system might be used by a custom data capture driver.
|
||||
*/
|
||||
void __init at91_add_device_ssc(unsigned id, unsigned pins)
|
||||
{
|
||||
struct platform_device *pdev;
|
||||
|
||||
/*
|
||||
* NOTE: caller is responsible for passing information matching
|
||||
* "pins" to whatever will be using each particular controller.
|
||||
*/
|
||||
switch (id) {
|
||||
case AT91RM9200_ID_SSC0:
|
||||
pdev = &at91rm9200_ssc0_device;
|
||||
configure_ssc0_pins(pins);
|
||||
at91_clock_associate("ssc0_clk", &pdev->dev, "ssc");
|
||||
break;
|
||||
case AT91RM9200_ID_SSC1:
|
||||
pdev = &at91rm9200_ssc1_device;
|
||||
configure_ssc1_pins(pins);
|
||||
at91_clock_associate("ssc1_clk", &pdev->dev, "ssc");
|
||||
break;
|
||||
case AT91RM9200_ID_SSC2:
|
||||
pdev = &at91rm9200_ssc2_device;
|
||||
configure_ssc2_pins(pins);
|
||||
at91_clock_associate("ssc2_clk", &pdev->dev, "ssc");
|
||||
break;
|
||||
default:
|
||||
return;
|
||||
}
|
||||
|
||||
platform_device_register(pdev);
|
||||
}
|
||||
|
||||
#else
|
||||
void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
|
||||
#endif
|
||||
|
||||
|
||||
/* --------------------------------------------------------------------
|
||||
* UART
|
||||
* -------------------------------------------------------------------- */
|
||||
|
|
|
|||
|
|
@ -606,6 +606,85 @@ void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
|
|||
#endif
|
||||
|
||||
|
||||
/* --------------------------------------------------------------------
|
||||
* SSC -- Synchronous Serial Controller
|
||||
* -------------------------------------------------------------------- */
|
||||
|
||||
#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
|
||||
static u64 ssc_dmamask = DMA_BIT_MASK(32);
|
||||
|
||||
static struct resource ssc_resources[] = {
|
||||
[0] = {
|
||||
.start = AT91SAM9260_BASE_SSC,
|
||||
.end = AT91SAM9260_BASE_SSC + SZ_16K - 1,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
[1] = {
|
||||
.start = AT91SAM9260_ID_SSC,
|
||||
.end = AT91SAM9260_ID_SSC,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device at91sam9260_ssc_device = {
|
||||
.name = "ssc",
|
||||
.id = 0,
|
||||
.dev = {
|
||||
.dma_mask = &ssc_dmamask,
|
||||
.coherent_dma_mask = DMA_BIT_MASK(32),
|
||||
},
|
||||
.resource = ssc_resources,
|
||||
.num_resources = ARRAY_SIZE(ssc_resources),
|
||||
};
|
||||
|
||||
static inline void configure_ssc_pins(unsigned pins)
|
||||
{
|
||||
if (pins & ATMEL_SSC_TF)
|
||||
at91_set_A_periph(AT91_PIN_PB17, 1);
|
||||
if (pins & ATMEL_SSC_TK)
|
||||
at91_set_A_periph(AT91_PIN_PB16, 1);
|
||||
if (pins & ATMEL_SSC_TD)
|
||||
at91_set_A_periph(AT91_PIN_PB18, 1);
|
||||
if (pins & ATMEL_SSC_RD)
|
||||
at91_set_A_periph(AT91_PIN_PB19, 1);
|
||||
if (pins & ATMEL_SSC_RK)
|
||||
at91_set_A_periph(AT91_PIN_PB20, 1);
|
||||
if (pins & ATMEL_SSC_RF)
|
||||
at91_set_A_periph(AT91_PIN_PB21, 1);
|
||||
}
|
||||
|
||||
/*
|
||||
* SSC controllers are accessed through library code, instead of any
|
||||
* kind of all-singing/all-dancing driver. For example one could be
|
||||
* used by a particular I2S audio codec's driver, while another one
|
||||
* on the same system might be used by a custom data capture driver.
|
||||
*/
|
||||
void __init at91_add_device_ssc(unsigned id, unsigned pins)
|
||||
{
|
||||
struct platform_device *pdev;
|
||||
|
||||
/*
|
||||
* NOTE: caller is responsible for passing information matching
|
||||
* "pins" to whatever will be using each particular controller.
|
||||
*/
|
||||
switch (id) {
|
||||
case AT91SAM9260_ID_SSC:
|
||||
pdev = &at91sam9260_ssc_device;
|
||||
configure_ssc_pins(pins);
|
||||
at91_clock_associate("ssc_clk", &pdev->dev, "pclk");
|
||||
break;
|
||||
default:
|
||||
return;
|
||||
}
|
||||
|
||||
platform_device_register(pdev);
|
||||
}
|
||||
|
||||
#else
|
||||
void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
|
||||
#endif
|
||||
|
||||
|
||||
/* --------------------------------------------------------------------
|
||||
* UART
|
||||
* -------------------------------------------------------------------- */
|
||||
|
|
|
|||
|
|
@ -618,6 +618,179 @@ void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
|
|||
#endif
|
||||
|
||||
|
||||
/* --------------------------------------------------------------------
|
||||
* SSC -- Synchronous Serial Controller
|
||||
* -------------------------------------------------------------------- */
|
||||
|
||||
#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
|
||||
static u64 ssc0_dmamask = DMA_BIT_MASK(32);
|
||||
|
||||
static struct resource ssc0_resources[] = {
|
||||
[0] = {
|
||||
.start = AT91SAM9261_BASE_SSC0,
|
||||
.end = AT91SAM9261_BASE_SSC0 + SZ_16K - 1,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
[1] = {
|
||||
.start = AT91SAM9261_ID_SSC0,
|
||||
.end = AT91SAM9261_ID_SSC0,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device at91sam9261_ssc0_device = {
|
||||
.name = "ssc",
|
||||
.id = 0,
|
||||
.dev = {
|
||||
.dma_mask = &ssc0_dmamask,
|
||||
.coherent_dma_mask = DMA_BIT_MASK(32),
|
||||
},
|
||||
.resource = ssc0_resources,
|
||||
.num_resources = ARRAY_SIZE(ssc0_resources),
|
||||
};
|
||||
|
||||
static inline void configure_ssc0_pins(unsigned pins)
|
||||
{
|
||||
if (pins & ATMEL_SSC_TF)
|
||||
at91_set_A_periph(AT91_PIN_PB21, 1);
|
||||
if (pins & ATMEL_SSC_TK)
|
||||
at91_set_A_periph(AT91_PIN_PB22, 1);
|
||||
if (pins & ATMEL_SSC_TD)
|
||||
at91_set_A_periph(AT91_PIN_PB23, 1);
|
||||
if (pins & ATMEL_SSC_RD)
|
||||
at91_set_A_periph(AT91_PIN_PB24, 1);
|
||||
if (pins & ATMEL_SSC_RK)
|
||||
at91_set_A_periph(AT91_PIN_PB25, 1);
|
||||
if (pins & ATMEL_SSC_RF)
|
||||
at91_set_A_periph(AT91_PIN_PB26, 1);
|
||||
}
|
||||
|
||||
static u64 ssc1_dmamask = DMA_BIT_MASK(32);
|
||||
|
||||
static struct resource ssc1_resources[] = {
|
||||
[0] = {
|
||||
.start = AT91SAM9261_BASE_SSC1,
|
||||
.end = AT91SAM9261_BASE_SSC1 + SZ_16K - 1,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
[1] = {
|
||||
.start = AT91SAM9261_ID_SSC1,
|
||||
.end = AT91SAM9261_ID_SSC1,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device at91sam9261_ssc1_device = {
|
||||
.name = "ssc",
|
||||
.id = 1,
|
||||
.dev = {
|
||||
.dma_mask = &ssc1_dmamask,
|
||||
.coherent_dma_mask = DMA_BIT_MASK(32),
|
||||
},
|
||||
.resource = ssc1_resources,
|
||||
.num_resources = ARRAY_SIZE(ssc1_resources),
|
||||
};
|
||||
|
||||
static inline void configure_ssc1_pins(unsigned pins)
|
||||
{
|
||||
if (pins & ATMEL_SSC_TF)
|
||||
at91_set_B_periph(AT91_PIN_PA17, 1);
|
||||
if (pins & ATMEL_SSC_TK)
|
||||
at91_set_B_periph(AT91_PIN_PA18, 1);
|
||||
if (pins & ATMEL_SSC_TD)
|
||||
at91_set_B_periph(AT91_PIN_PA19, 1);
|
||||
if (pins & ATMEL_SSC_RD)
|
||||
at91_set_B_periph(AT91_PIN_PA20, 1);
|
||||
if (pins & ATMEL_SSC_RK)
|
||||
at91_set_B_periph(AT91_PIN_PA21, 1);
|
||||
if (pins & ATMEL_SSC_RF)
|
||||
at91_set_B_periph(AT91_PIN_PA22, 1);
|
||||
}
|
||||
|
||||
static u64 ssc2_dmamask = DMA_BIT_MASK(32);
|
||||
|
||||
static struct resource ssc2_resources[] = {
|
||||
[0] = {
|
||||
.start = AT91SAM9261_BASE_SSC2,
|
||||
.end = AT91SAM9261_BASE_SSC2 + SZ_16K - 1,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
[1] = {
|
||||
.start = AT91SAM9261_ID_SSC2,
|
||||
.end = AT91SAM9261_ID_SSC2,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device at91sam9261_ssc2_device = {
|
||||
.name = "ssc",
|
||||
.id = 2,
|
||||
.dev = {
|
||||
.dma_mask = &ssc2_dmamask,
|
||||
.coherent_dma_mask = DMA_BIT_MASK(32),
|
||||
},
|
||||
.resource = ssc2_resources,
|
||||
.num_resources = ARRAY_SIZE(ssc2_resources),
|
||||
};
|
||||
|
||||
static inline void configure_ssc2_pins(unsigned pins)
|
||||
{
|
||||
if (pins & ATMEL_SSC_TF)
|
||||
at91_set_B_periph(AT91_PIN_PC25, 1);
|
||||
if (pins & ATMEL_SSC_TK)
|
||||
at91_set_B_periph(AT91_PIN_PC26, 1);
|
||||
if (pins & ATMEL_SSC_TD)
|
||||
at91_set_B_periph(AT91_PIN_PC27, 1);
|
||||
if (pins & ATMEL_SSC_RD)
|
||||
at91_set_B_periph(AT91_PIN_PC28, 1);
|
||||
if (pins & ATMEL_SSC_RK)
|
||||
at91_set_B_periph(AT91_PIN_PC29, 1);
|
||||
if (pins & ATMEL_SSC_RF)
|
||||
at91_set_B_periph(AT91_PIN_PC30, 1);
|
||||
}
|
||||
|
||||
/*
|
||||
* SSC controllers are accessed through library code, instead of any
|
||||
* kind of all-singing/all-dancing driver. For example one could be
|
||||
* used by a particular I2S audio codec's driver, while another one
|
||||
* on the same system might be used by a custom data capture driver.
|
||||
*/
|
||||
void __init at91_add_device_ssc(unsigned id, unsigned pins)
|
||||
{
|
||||
struct platform_device *pdev;
|
||||
|
||||
/*
|
||||
* NOTE: caller is responsible for passing information matching
|
||||
* "pins" to whatever will be using each particular controller.
|
||||
*/
|
||||
switch (id) {
|
||||
case AT91SAM9261_ID_SSC0:
|
||||
pdev = &at91sam9261_ssc0_device;
|
||||
configure_ssc0_pins(pins);
|
||||
at91_clock_associate("ssc0_clk", &pdev->dev, "pclk");
|
||||
break;
|
||||
case AT91SAM9261_ID_SSC1:
|
||||
pdev = &at91sam9261_ssc1_device;
|
||||
configure_ssc1_pins(pins);
|
||||
at91_clock_associate("ssc1_clk", &pdev->dev, "pclk");
|
||||
break;
|
||||
case AT91SAM9261_ID_SSC2:
|
||||
pdev = &at91sam9261_ssc2_device;
|
||||
configure_ssc2_pins(pins);
|
||||
at91_clock_associate("ssc2_clk", &pdev->dev, "pclk");
|
||||
break;
|
||||
default:
|
||||
return;
|
||||
}
|
||||
|
||||
platform_device_register(pdev);
|
||||
}
|
||||
|
||||
#else
|
||||
void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
|
||||
#endif
|
||||
|
||||
|
||||
/* --------------------------------------------------------------------
|
||||
* UART
|
||||
* -------------------------------------------------------------------- */
|
||||
|
|
|
|||
|
|
@ -865,6 +865,135 @@ void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
|
|||
#endif
|
||||
|
||||
|
||||
/* --------------------------------------------------------------------
|
||||
* SSC -- Synchronous Serial Controller
|
||||
* -------------------------------------------------------------------- */
|
||||
|
||||
#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
|
||||
static u64 ssc0_dmamask = DMA_BIT_MASK(32);
|
||||
|
||||
static struct resource ssc0_resources[] = {
|
||||
[0] = {
|
||||
.start = AT91SAM9263_BASE_SSC0,
|
||||
.end = AT91SAM9263_BASE_SSC0 + SZ_16K - 1,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
[1] = {
|
||||
.start = AT91SAM9263_ID_SSC0,
|
||||
.end = AT91SAM9263_ID_SSC0,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device at91sam9263_ssc0_device = {
|
||||
.name = "ssc",
|
||||
.id = 0,
|
||||
.dev = {
|
||||
.dma_mask = &ssc0_dmamask,
|
||||
.coherent_dma_mask = DMA_BIT_MASK(32),
|
||||
},
|
||||
.resource = ssc0_resources,
|
||||
.num_resources = ARRAY_SIZE(ssc0_resources),
|
||||
};
|
||||
|
||||
static inline void configure_ssc0_pins(unsigned pins)
|
||||
{
|
||||
if (pins & ATMEL_SSC_TF)
|
||||
at91_set_B_periph(AT91_PIN_PB0, 1);
|
||||
if (pins & ATMEL_SSC_TK)
|
||||
at91_set_B_periph(AT91_PIN_PB1, 1);
|
||||
if (pins & ATMEL_SSC_TD)
|
||||
at91_set_B_periph(AT91_PIN_PB2, 1);
|
||||
if (pins & ATMEL_SSC_RD)
|
||||
at91_set_B_periph(AT91_PIN_PB3, 1);
|
||||
if (pins & ATMEL_SSC_RK)
|
||||
at91_set_B_periph(AT91_PIN_PB4, 1);
|
||||
if (pins & ATMEL_SSC_RF)
|
||||
at91_set_B_periph(AT91_PIN_PB5, 1);
|
||||
}
|
||||
|
||||
static u64 ssc1_dmamask = DMA_BIT_MASK(32);
|
||||
|
||||
static struct resource ssc1_resources[] = {
|
||||
[0] = {
|
||||
.start = AT91SAM9263_BASE_SSC1,
|
||||
.end = AT91SAM9263_BASE_SSC1 + SZ_16K - 1,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
[1] = {
|
||||
.start = AT91SAM9263_ID_SSC1,
|
||||
.end = AT91SAM9263_ID_SSC1,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device at91sam9263_ssc1_device = {
|
||||
.name = "ssc",
|
||||
.id = 1,
|
||||
.dev = {
|
||||
.dma_mask = &ssc1_dmamask,
|
||||
.coherent_dma_mask = DMA_BIT_MASK(32),
|
||||
},
|
||||
.resource = ssc1_resources,
|
||||
.num_resources = ARRAY_SIZE(ssc1_resources),
|
||||
};
|
||||
|
||||
static inline void configure_ssc1_pins(unsigned pins)
|
||||
{
|
||||
if (pins & ATMEL_SSC_TF)
|
||||
at91_set_A_periph(AT91_PIN_PB6, 1);
|
||||
if (pins & ATMEL_SSC_TK)
|
||||
at91_set_A_periph(AT91_PIN_PB7, 1);
|
||||
if (pins & ATMEL_SSC_TD)
|
||||
at91_set_A_periph(AT91_PIN_PB8, 1);
|
||||
if (pins & ATMEL_SSC_RD)
|
||||
at91_set_A_periph(AT91_PIN_PB9, 1);
|
||||
if (pins & ATMEL_SSC_RK)
|
||||
at91_set_A_periph(AT91_PIN_PB10, 1);
|
||||
if (pins & ATMEL_SSC_RF)
|
||||
at91_set_A_periph(AT91_PIN_PB11, 1);
|
||||
}
|
||||
|
||||
/*
|
||||
* Return the device node so that board init code can use it as the
|
||||
* parent for the device node reflecting how it's used on this board.
|
||||
*
|
||||
* SSC controllers are accessed through library code, instead of any
|
||||
* kind of all-singing/all-dancing driver. For example one could be
|
||||
* used by a particular I2S audio codec's driver, while another one
|
||||
* on the same system might be used by a custom data capture driver.
|
||||
*/
|
||||
void __init at91_add_device_ssc(unsigned id, unsigned pins)
|
||||
{
|
||||
struct platform_device *pdev;
|
||||
|
||||
/*
|
||||
* NOTE: caller is responsible for passing information matching
|
||||
* "pins" to whatever will be using each particular controller.
|
||||
*/
|
||||
switch (id) {
|
||||
case AT91SAM9263_ID_SSC0:
|
||||
pdev = &at91sam9263_ssc0_device;
|
||||
configure_ssc0_pins(pins);
|
||||
at91_clock_associate("ssc0_clk", &pdev->dev, "pclk");
|
||||
break;
|
||||
case AT91SAM9263_ID_SSC1:
|
||||
pdev = &at91sam9263_ssc1_device;
|
||||
configure_ssc1_pins(pins);
|
||||
at91_clock_associate("ssc1_clk", &pdev->dev, "pclk");
|
||||
break;
|
||||
default:
|
||||
return;
|
||||
}
|
||||
|
||||
platform_device_register(pdev);
|
||||
}
|
||||
|
||||
#else
|
||||
void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
|
||||
#endif
|
||||
|
||||
|
||||
/* --------------------------------------------------------------------
|
||||
* UART
|
||||
* -------------------------------------------------------------------- */
|
||||
|
|
|
|||
|
|
@ -471,6 +471,135 @@ void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
|
|||
#endif
|
||||
|
||||
|
||||
/* --------------------------------------------------------------------
|
||||
* SSC -- Synchronous Serial Controller
|
||||
* -------------------------------------------------------------------- */
|
||||
|
||||
#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
|
||||
static u64 ssc0_dmamask = DMA_BIT_MASK(32);
|
||||
|
||||
static struct resource ssc0_resources[] = {
|
||||
[0] = {
|
||||
.start = AT91SAM9RL_BASE_SSC0,
|
||||
.end = AT91SAM9RL_BASE_SSC0 + SZ_16K - 1,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
[1] = {
|
||||
.start = AT91SAM9RL_ID_SSC0,
|
||||
.end = AT91SAM9RL_ID_SSC0,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device at91sam9rl_ssc0_device = {
|
||||
.name = "ssc",
|
||||
.id = 0,
|
||||
.dev = {
|
||||
.dma_mask = &ssc0_dmamask,
|
||||
.coherent_dma_mask = DMA_BIT_MASK(32),
|
||||
},
|
||||
.resource = ssc0_resources,
|
||||
.num_resources = ARRAY_SIZE(ssc0_resources),
|
||||
};
|
||||
|
||||
static inline void configure_ssc0_pins(unsigned pins)
|
||||
{
|
||||
if (pins & ATMEL_SSC_TF)
|
||||
at91_set_A_periph(AT91_PIN_PC0, 1);
|
||||
if (pins & ATMEL_SSC_TK)
|
||||
at91_set_A_periph(AT91_PIN_PC1, 1);
|
||||
if (pins & ATMEL_SSC_TD)
|
||||
at91_set_A_periph(AT91_PIN_PA15, 1);
|
||||
if (pins & ATMEL_SSC_RD)
|
||||
at91_set_A_periph(AT91_PIN_PA16, 1);
|
||||
if (pins & ATMEL_SSC_RK)
|
||||
at91_set_B_periph(AT91_PIN_PA10, 1);
|
||||
if (pins & ATMEL_SSC_RF)
|
||||
at91_set_B_periph(AT91_PIN_PA22, 1);
|
||||
}
|
||||
|
||||
static u64 ssc1_dmamask = DMA_BIT_MASK(32);
|
||||
|
||||
static struct resource ssc1_resources[] = {
|
||||
[0] = {
|
||||
.start = AT91SAM9RL_BASE_SSC1,
|
||||
.end = AT91SAM9RL_BASE_SSC1 + SZ_16K - 1,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
[1] = {
|
||||
.start = AT91SAM9RL_ID_SSC1,
|
||||
.end = AT91SAM9RL_ID_SSC1,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static struct platform_device at91sam9rl_ssc1_device = {
|
||||
.name = "ssc",
|
||||
.id = 1,
|
||||
.dev = {
|
||||
.dma_mask = &ssc1_dmamask,
|
||||
.coherent_dma_mask = DMA_BIT_MASK(32),
|
||||
},
|
||||
.resource = ssc1_resources,
|
||||
.num_resources = ARRAY_SIZE(ssc1_resources),
|
||||
};
|
||||
|
||||
static inline void configure_ssc1_pins(unsigned pins)
|
||||
{
|
||||
if (pins & ATMEL_SSC_TF)
|
||||
at91_set_B_periph(AT91_PIN_PA29, 1);
|
||||
if (pins & ATMEL_SSC_TK)
|
||||
at91_set_B_periph(AT91_PIN_PA30, 1);
|
||||
if (pins & ATMEL_SSC_TD)
|
||||
at91_set_B_periph(AT91_PIN_PA13, 1);
|
||||
if (pins & ATMEL_SSC_RD)
|
||||
at91_set_B_periph(AT91_PIN_PA14, 1);
|
||||
if (pins & ATMEL_SSC_RK)
|
||||
at91_set_B_periph(AT91_PIN_PA9, 1);
|
||||
if (pins & ATMEL_SSC_RF)
|
||||
at91_set_B_periph(AT91_PIN_PA8, 1);
|
||||
}
|
||||
|
||||
/*
|
||||
* Return the device node so that board init code can use it as the
|
||||
* parent for the device node reflecting how it's used on this board.
|
||||
*
|
||||
* SSC controllers are accessed through library code, instead of any
|
||||
* kind of all-singing/all-dancing driver. For example one could be
|
||||
* used by a particular I2S audio codec's driver, while another one
|
||||
* on the same system might be used by a custom data capture driver.
|
||||
*/
|
||||
void __init at91_add_device_ssc(unsigned id, unsigned pins)
|
||||
{
|
||||
struct platform_device *pdev;
|
||||
|
||||
/*
|
||||
* NOTE: caller is responsible for passing information matching
|
||||
* "pins" to whatever will be using each particular controller.
|
||||
*/
|
||||
switch (id) {
|
||||
case AT91SAM9RL_ID_SSC0:
|
||||
pdev = &at91sam9rl_ssc0_device;
|
||||
configure_ssc0_pins(pins);
|
||||
at91_clock_associate("ssc0_clk", &pdev->dev, "pclk");
|
||||
break;
|
||||
case AT91SAM9RL_ID_SSC1:
|
||||
pdev = &at91sam9rl_ssc1_device;
|
||||
configure_ssc1_pins(pins);
|
||||
at91_clock_associate("ssc1_clk", &pdev->dev, "pclk");
|
||||
break;
|
||||
default:
|
||||
return;
|
||||
}
|
||||
|
||||
platform_device_register(pdev);
|
||||
}
|
||||
|
||||
#else
|
||||
void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
|
||||
#endif
|
||||
|
||||
|
||||
/* --------------------------------------------------------------------
|
||||
* UART
|
||||
* -------------------------------------------------------------------- */
|
||||
|
|
|
|||
|
|
@ -116,6 +116,23 @@ struct atmel_uart_data {
|
|||
};
|
||||
extern void __init at91_add_device_serial(void);
|
||||
|
||||
/*
|
||||
* SSC -- accessed through ssc_request(id). Drivers don't bind to SSC
|
||||
* platform devices. Their SSC ID is part of their configuration data,
|
||||
* along with information about which SSC signals they should use.
|
||||
*/
|
||||
#define ATMEL_SSC_TK 0x01
|
||||
#define ATMEL_SSC_TF 0x02
|
||||
#define ATMEL_SSC_TD 0x04
|
||||
#define ATMEL_SSC_TX (ATMEL_SSC_TK | ATMEL_SSC_TF | ATMEL_SSC_TD)
|
||||
|
||||
#define ATMEL_SSC_RK 0x10
|
||||
#define ATMEL_SSC_RF 0x20
|
||||
#define ATMEL_SSC_RD 0x40
|
||||
#define ATMEL_SSC_RX (ATMEL_SSC_RK | ATMEL_SSC_RF | ATMEL_SSC_RD)
|
||||
|
||||
extern void __init at91_add_device_ssc(unsigned id, unsigned pins);
|
||||
|
||||
/* LCD Controller */
|
||||
struct atmel_lcdfb_info;
|
||||
extern void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data);
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче