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[AVR32] Implement more at32_add_device_foo() functions
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Implement functions for adding platform devices for TWI, MCI, AC97C
and ABDAC. They may need to be modified to cope with platform data,
etc. when the corresponding drivers are ready to be merged, but such
changes are much less likely to conflict than adding support for a
whole new type of device.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
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Haavard Skinnemoen committed Oct 23, 2007
1 parent 8629896 commit 2042c1c
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Showing 2 changed files with 213 additions and 0 deletions.
208 changes: 208 additions & 0 deletions arch/avr32/mach-at32ap/at32ap7000.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -556,6 +556,17 @@ static struct clk pico_clk = {
.users = 1,
};

static struct resource dmaca0_resource[] = {
{
.start = 0xff200000,
.end = 0xff20ffff,
.flags = IORESOURCE_MEM,
},
IRQ(2),
};
DEFINE_DEV(dmaca, 0);
DEV_CLK(hclk, dmaca0, hsb, 10);

/* --------------------------------------------------------------------
* HMATRIX
* -------------------------------------------------------------------- */
Expand Down Expand Up @@ -655,6 +666,7 @@ void __init at32_add_system_devices(void)
platform_device_register(&at32_eic0_device);
platform_device_register(&smc0_device);
platform_device_register(&pdc_device);
platform_device_register(&dmaca0_device);

platform_device_register(&at32_systc0_device);

Expand Down Expand Up @@ -959,6 +971,96 @@ at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n)
return pdev;
}

/* --------------------------------------------------------------------
* TWI
* -------------------------------------------------------------------- */
static struct resource atmel_twi0_resource[] __initdata = {
PBMEM(0xffe00800),
IRQ(5),
};
static struct clk atmel_twi0_pclk = {
.name = "twi_pclk",
.parent = &pba_clk,
.mode = pba_clk_mode,
.get_rate = pba_clk_get_rate,
.index = 2,
};

struct platform_device *__init at32_add_device_twi(unsigned int id)
{
struct platform_device *pdev;

if (id != 0)
return NULL;

pdev = platform_device_alloc("atmel_twi", id);
if (!pdev)
return NULL;

if (platform_device_add_resources(pdev, atmel_twi0_resource,
ARRAY_SIZE(atmel_twi0_resource)))
goto err_add_resources;

select_peripheral(PA(6), PERIPH_A, 0); /* SDA */
select_peripheral(PA(7), PERIPH_A, 0); /* SDL */

atmel_twi0_pclk.dev = &pdev->dev;

platform_device_add(pdev);
return pdev;

err_add_resources:
platform_device_put(pdev);
return NULL;
}

/* --------------------------------------------------------------------
* MMC
* -------------------------------------------------------------------- */
static struct resource atmel_mci0_resource[] __initdata = {
PBMEM(0xfff02400),
IRQ(28),
};
static struct clk atmel_mci0_pclk = {
.name = "mci_clk",
.parent = &pbb_clk,
.mode = pbb_clk_mode,
.get_rate = pbb_clk_get_rate,
.index = 9,
};

struct platform_device *__init at32_add_device_mci(unsigned int id)
{
struct platform_device *pdev;

if (id != 0)
return NULL;

pdev = platform_device_alloc("atmel_mci", id);
if (!pdev)
return NULL;

if (platform_device_add_resources(pdev, atmel_mci0_resource,
ARRAY_SIZE(atmel_mci0_resource)))
goto err_add_resources;

select_peripheral(PA(10), PERIPH_A, 0); /* CLK */
select_peripheral(PA(11), PERIPH_A, 0); /* CMD */
select_peripheral(PA(12), PERIPH_A, 0); /* DATA0 */
select_peripheral(PA(13), PERIPH_A, 0); /* DATA1 */
select_peripheral(PA(14), PERIPH_A, 0); /* DATA2 */
select_peripheral(PA(15), PERIPH_A, 0); /* DATA3 */

atmel_mci0_pclk.dev = &pdev->dev;

platform_device_add(pdev);
return pdev;

err_add_resources:
platform_device_put(pdev);
return NULL;
}

/* --------------------------------------------------------------------
* LCDC
* -------------------------------------------------------------------- */
Expand Down Expand Up @@ -1292,6 +1394,105 @@ at32_add_device_ide(unsigned int id, unsigned int extint,
return pdev;
}

/* --------------------------------------------------------------------
* AC97C
* -------------------------------------------------------------------- */
static struct resource atmel_ac97c0_resource[] __initdata = {
PBMEM(0xfff02800),
IRQ(29),
};
static struct clk atmel_ac97c0_pclk = {
.name = "pclk",
.parent = &pbb_clk,
.mode = pbb_clk_mode,
.get_rate = pbb_clk_get_rate,
.index = 10,
};

struct platform_device *__init at32_add_device_ac97c(unsigned int id)
{
struct platform_device *pdev;

if (id != 0)
return NULL;

pdev = platform_device_alloc("atmel_ac97c", id);
if (!pdev)
return NULL;

if (platform_device_add_resources(pdev, atmel_ac97c0_resource,
ARRAY_SIZE(atmel_ac97c0_resource)))
goto err_add_resources;

select_peripheral(PB(20), PERIPH_B, 0); /* SYNC */
select_peripheral(PB(21), PERIPH_B, 0); /* SDO */
select_peripheral(PB(22), PERIPH_B, 0); /* SDI */
select_peripheral(PB(23), PERIPH_B, 0); /* SCLK */

atmel_ac97c0_pclk.dev = &pdev->dev;

platform_device_add(pdev);
return pdev;

err_add_resources:
platform_device_put(pdev);
return NULL;
}

/* --------------------------------------------------------------------
* ABDAC
* -------------------------------------------------------------------- */
static struct resource abdac0_resource[] __initdata = {
PBMEM(0xfff02000),
IRQ(27),
};
static struct clk abdac0_pclk = {
.name = "pclk",
.parent = &pbb_clk,
.mode = pbb_clk_mode,
.get_rate = pbb_clk_get_rate,
.index = 8,
};
static struct clk abdac0_sample_clk = {
.name = "sample_clk",
.mode = genclk_mode,
.get_rate = genclk_get_rate,
.set_rate = genclk_set_rate,
.set_parent = genclk_set_parent,
.index = 6,
};

struct platform_device *__init at32_add_device_abdac(unsigned int id)
{
struct platform_device *pdev;

if (id != 0)
return NULL;

pdev = platform_device_alloc("abdac", id);
if (!pdev)
return NULL;

if (platform_device_add_resources(pdev, abdac0_resource,
ARRAY_SIZE(abdac0_resource)))
goto err_add_resources;

select_peripheral(PB(20), PERIPH_A, 0); /* DATA1 */
select_peripheral(PB(21), PERIPH_A, 0); /* DATA0 */
select_peripheral(PB(22), PERIPH_A, 0); /* DATAN1 */
select_peripheral(PB(23), PERIPH_A, 0); /* DATAN0 */

abdac0_pclk.dev = &pdev->dev;
abdac0_sample_clk.dev = &pdev->dev;

platform_device_add(pdev);
return pdev;

err_add_resources:
platform_device_put(pdev);
return NULL;
}

/* --------------------------------------------------------------------
* GCLK
* -------------------------------------------------------------------- */
Expand Down Expand Up @@ -1355,6 +1556,7 @@ struct clk *at32_clock_list[] = {
&smc0_mck,
&pdc_hclk,
&pdc_pclk,
&dmaca0_hclk,
&pico_clk,
&pio0_mck,
&pio1_mck,
Expand All @@ -1372,13 +1574,18 @@ struct clk *at32_clock_list[] = {
&macb1_pclk,
&atmel_spi0_spi_clk,
&atmel_spi1_spi_clk,
&atmel_twi0_pclk,
&atmel_mci0_pclk,
&atmel_lcdfb0_hck1,
&atmel_lcdfb0_pixclk,
&ssc0_pclk,
&ssc1_pclk,
&ssc2_pclk,
&usba0_hclk,
&usba0_pclk,
&atmel_ac97c0_pclk,
&abdac0_pclk,
&abdac0_sample_clk,
&gclk0,
&gclk1,
&gclk2,
Expand Down Expand Up @@ -1420,6 +1627,7 @@ void __init at32_clock_init(void)
genclk_init_parent(&gclk3);
genclk_init_parent(&gclk4);
genclk_init_parent(&atmel_lcdfb0_pixclk);
genclk_init_parent(&abdac0_sample_clk);

/*
* Turn on all clocks that have at least one user already, and
Expand Down
5 changes: 5 additions & 0 deletions include/asm-avr32/arch-at32ap/board.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -65,4 +65,9 @@ at32_add_device_ide(unsigned int id, unsigned int extint,
struct platform_device *
at32_add_device_ssc(unsigned int id, unsigned int flags);

struct platform_device *at32_add_device_twi(unsigned int id);
struct platform_device *at32_add_device_mci(unsigned int id);
struct platform_device *at32_add_device_ac97c(unsigned int id);
struct platform_device *at32_add_device_abdac(unsigned int id);

#endif /* __ASM_ARCH_BOARD_H */

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