spi.c File Reference

#include <assert.h>
#include <console/console.h>
#include <device/mmio.h>
#include <spi_flash.h>
#include <soc/addressmap.h>
#include <soc/flash_controller_common.h>
#include <soc/gpio.h>
#include <soc/spi.h>

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Data Structures
struct	pad_func

Macros
#define	PAD_FUNC(name, func)   {GPIO(name), PAD_##name##_FUNC_##func, GPIO_PULL_DOWN}
#define	PAD_FUNC_SEL(name, func, sel)   {GPIO(name), PAD_##name##_FUNC_##func, sel}
#define	PAD_FUNC_GPIO(name)   {GPIO(name), 0, GPIO_PULL_DOWN}

Functions
void	mtk_snfc_init (int gpio_set)
void	mtk_spi_set_gpio_pinmux (unsigned int bus, enum spi_pad_mask pad_select)

Variables
struct mtk_spi_bus	spi_bus [SPI_BUS_NUMBER]
static const struct pad_func	pad0_funcs [SPI_BUS_NUMBER][4]
static const struct pad_func	pad1_funcs [SPI_BUS_NUMBER][4]
static const struct pad_func	nor_pinmux [SPI_NOR_GPIO_SET_NUM][4]
static const struct spi_ctrlr	spi_flash_ctrlr
const struct spi_ctrlr_buses	spi_ctrlr_bus_map []
const size_t	spi_ctrlr_bus_map_count = ARRAY_SIZE(spi_ctrlr_bus_map)

Macro Definition Documentation

PAD_FUNC

#define PAD_FUNC	(		name,
			func
	)		{GPIO(name), PAD_##name##_FUNC_##func, GPIO_PULL_DOWN}

Definition at line 50 of file spi.c.

PAD_FUNC_GPIO

#define PAD_FUNC_GPIO

(

name

)

{GPIO(name), 0, GPIO_PULL_DOWN}

Definition at line 52 of file spi.c.

PAD_FUNC_SEL

#define PAD_FUNC_SEL	(		name,
			func,
			sel
	)		{GPIO(name), PAD_##name##_FUNC_##func, sel}

Definition at line 51 of file spi.c.

Function Documentation

mtk_snfc_init()

void mtk_snfc_init

(

int

gpio_set

)

Definition at line 141 of file spi.c.

References ARRAY_SIZE, assert, BIOS_DEBUG, BIOS_WARNING, pad_func::func, GPIO_DRV_8_MA, gpio_get_driving(), GPIO_PULL_ENABLE, gpio_set(), gpio_set_driving(), gpio_set_mode(), gpio_set_pull(), nor_pinmux, NULL, printk, pad_func::select, and SPI_NOR_GPIO_SET_NUM.

Referenced by bootblock_mainboard_init().

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mtk_spi_set_gpio_pinmux()

void mtk_spi_set_gpio_pinmux	(	unsigned int	bus,
		enum spi_pad_mask	pad_select
	)

Definition at line 162 of file spi.c.

References assert, pad_func::func, gpio_set_mode(), pad0_funcs, pad1_funcs, SPI_BUS_NUMBER, SPI_PAD0_MASK, and SPI_PAD1_MASK.

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Variable Documentation

nor_pinmux

const struct pad_func nor_pinmux[SPI_NOR_GPIO_SET_NUM][4]

static

Initial value:

= {
        
        [SPI_NOR_GPIO_SET0] = {
                PAD_FUNC_SEL(SPI0_CLK, SPINOR_CK, GPIO_PULL_DOWN),
                PAD_FUNC_SEL(SPI0_CSB, SPINOR_CS, GPIO_PULL_UP),
                PAD_FUNC_SEL(SPI0_MO, SPINOR_IO0, GPIO_PULL_DOWN),
                PAD_FUNC_SEL(SPI0_MI, SPINOR_IO1, GPIO_PULL_DOWN),
        },
        
        [SPI_NOR_GPIO_SET1] = {
                PAD_FUNC_SEL(TDM_RX_BCK, SPINOR_CK, GPIO_PULL_DOWN),
                PAD_FUNC_SEL(TDM_RX_MCLK, SPINOR_CS, GPIO_PULL_UP),
                PAD_FUNC_SEL(TDM_RX_DATA0, SPINOR_IO0, GPIO_PULL_DOWN),
                PAD_FUNC_SEL(TDM_RX_DATA1, SPINOR_IO1, GPIO_PULL_DOWN),
        },
}

Definition at line 1 of file spi.c.

Referenced by mtk_snfc_init(), and nor_set_gpio_pinmux().

pad0_funcs

const struct pad_func pad0_funcs[SPI_BUS_NUMBER][4]

static

Definition at line 1 of file spi.c.

Referenced by mtk_spi_set_gpio_pinmux().

pad1_funcs

const struct pad_func pad1_funcs[SPI_BUS_NUMBER][4]

static

Initial value:

= {
        {
                PAD_FUNC(EINT3, SPI0_MI_B),
                PAD_FUNC_GPIO(EINT1),
                PAD_FUNC(EINT2, SPI0_MO_B),
                PAD_FUNC(EINT0, SPI0_CLK_B),
        },
        {
                PAD_FUNC(EINT9, SPI1_MI_B),
                PAD_FUNC_GPIO(EINT7),
                PAD_FUNC(EINT8, SPI1_MO_B),
                PAD_FUNC(EINT6, SPI1_CLK_B),
        },
        {
                PAD_FUNC(CAM_PDN1, SPI2_MI_B),
                PAD_FUNC_GPIO(CAM_PDN0),
                PAD_FUNC(CAM_RST0, SPI2_MO_B),
                PAD_FUNC(EINT18, SPI2_CLK_B),
        },
        {
        },
        {
                PAD_FUNC(I2S2_DI, SPI4_MI_B),
                PAD_FUNC_GPIO(I2S2_BCK),
                PAD_FUNC(I2S2_LRCK, SPI4_MO_B),
                PAD_FUNC(I2S2_MCK, SPI4_CLK_B),
        },
        {
        },
}

Definition at line 1 of file spi.c.

Referenced by mtk_spi_set_gpio_pinmux().

spi_bus

struct mtk_spi_bus spi_bus[SPI_BUS_NUMBER]

Initial value:

= {
        {
                .regs = (void *)SPI0_BASE,
                .cs_gpio = GPIO(SPI0_CSB),
        },
        {
                .regs = (void *)SPI1_BASE,
                .cs_gpio = GPIO(SPI1_CSB),
        },
        {
                .regs = (void *)SPI2_BASE,
                .cs_gpio = GPIO(SPI2_CSB),
        },
        {
                .regs = (void *)SPI3_BASE,
                .cs_gpio = GPIO(SPI3_CSB),
        },
        {
                .regs = (void *)SPI4_BASE,
                .cs_gpio = GPIO(EINT11),
        },
        {
                .regs = (void *)SPI5_BASE,
                .cs_gpio = GPIO(SPI5_CSB),
        }
}

Definition at line 1 of file spi.c.

spi_ctrlr_bus_map

const struct spi_ctrlr_buses spi_ctrlr_bus_map[]

Initial value:

= {
        {
                .ctrlr = &spi_ctrlr,
                .bus_start = 0,
                .bus_end = SPI_BUS_NUMBER - 1,
        },
        {
                .ctrlr = &spi_flash_ctrlr,
                .bus_start = CONFIG_BOOT_DEVICE_SPI_FLASH_BUS,
                .bus_end = CONFIG_BOOT_DEVICE_SPI_FLASH_BUS,
        },
}

Definition at line 162 of file spi.c.

spi_ctrlr_bus_map_count

const size_t spi_ctrlr_bus_map_count = ARRAY_SIZE(spi_ctrlr_bus_map)

Definition at line 196 of file spi.c.

spi_flash_ctrlr

const struct spi_ctrlr spi_flash_ctrlr

static

Initial value:

= {
        .max_xfer_size = 65535,
        .flash_probe = mtk_spi_flash_probe,
}

Definition at line 162 of file spi.c.