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ARM: imx legacy: mx31lite: move peripheral initialization to .init_late 

The change moves some of peripheral registrations and initializations
(all peripherals dependent on GPIOs) from .init_machine to .init_late
level, this allows to safely shift the shared GPIO controller driver
initialization level after init level of i.MX IOMUXC driver.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Vladimir Zapolskiy 2016-09-19 04:37:14 +03:00 committed by Shawn Guo
parent 4bc2e627c5
commit 4ed9bb2184
2 changed files with 48 additions and 53 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

68
arch/arm/mach-imx/mach-mx31lite.c
View File

@ -52,6 +52,19 @@
*/
static unsigned int mx31lite_pins[] = {
/* UART1 */
MX31_PIN_CTS1__CTS1,
MX31_PIN_RTS1__RTS1,
MX31_PIN_TXD1__TXD1,
MX31_PIN_RXD1__RXD1,
/* SPI 0 */
MX31_PIN_CSPI1_SCLK__SCLK,
MX31_PIN_CSPI1_MOSI__MOSI,
MX31_PIN_CSPI1_MISO__MISO,
MX31_PIN_CSPI1_SPI_RDY__SPI_RDY,
MX31_PIN_CSPI1_SS0__SS0,
MX31_PIN_CSPI1_SS1__SS1,
MX31_PIN_CSPI1_SS2__SS2,
/* LAN9117 IRQ pin */
IOMUX_MODE(MX31_PIN_SFS6, IOMUX_CONFIG_GPIO),
/* SPI 1 */
@ -64,6 +77,23 @@ static unsigned int mx31lite_pins[] = {
MX31_PIN_CSPI2_SS2__SS2,
};
/* UART */
static const struct imxuart_platform_data uart_pdata __initconst = {
.flags = IMXUART_HAVE_RTSCTS,
};
/* SPI */
static int spi0_internal_chipselect[] = {
MXC_SPI_CS(0),
MXC_SPI_CS(1),
MXC_SPI_CS(2),
};
static const struct spi_imx_master spi0_pdata __initconst = {
.chipselect = spi0_internal_chipselect,
.num_chipselect = ARRAY_SIZE(spi0_internal_chipselect),
};
static const struct mxc_nand_platform_data
mx31lite_nand_board_info __initconst = {
.width = 1,
@ -103,13 +133,13 @@ static struct platform_device smsc911x_device = {
* The MC13783 is the only hard-wired SPI device on the module.
*/
static int spi_internal_chipselect[] = {
static int spi1_internal_chipselect[] = {
MXC_SPI_CS(0),
};
static const struct spi_imx_master spi1_pdata __initconst = {
.chipselect = spi_internal_chipselect,
.num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
.chipselect = spi1_internal_chipselect,
.num_chipselect = ARRAY_SIZE(spi1_internal_chipselect),
};
static struct mc13xxx_platform_data mc13783_pdata __initdata = {
@ -200,8 +230,6 @@ static struct platform_device physmap_flash_device = {
.num_resources = 1,
};
/*
* This structure defines the MX31 memory map.
*/
@ -233,29 +261,30 @@ static struct regulator_consumer_supply dummy_supplies[] = {
static void __init mx31lite_init(void)
{
int ret;
imx31_soc_init();
switch (mx31lite_baseboard) {
case MX31LITE_NOBOARD:
break;
case MX31LITE_DB:
mx31lite_db_init();
break;
default:
printk(KERN_ERR "Illegal mx31lite_baseboard type %d\n",
mx31lite_baseboard);
}
mxc_iomux_setup_multiple_pins(mx31lite_pins, ARRAY_SIZE(mx31lite_pins),
"mx31lite");
imx31_add_imx_uart0(&uart_pdata);
imx31_add_spi_imx0(&spi0_pdata);
/* NOR and NAND flash */
platform_device_register(&physmap_flash_device);
imx31_add_mxc_nand(&mx31lite_nand_board_info);
imx31_add_spi_imx1(&spi1_pdata);
regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
}
static void __init mx31lite_late(void)
{
int ret;
if (mx31lite_baseboard == MX31LITE_DB)
mx31lite_db_init();
mc13783_spi_dev.irq = gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
spi_register_board_info(&mc13783_spi_dev, 1);
@ -265,8 +294,6 @@ static void __init mx31lite_init(void)
if (usbh2_pdata.otg)
imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
/* SMSC9117 IRQ pin */
ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6), "sms9117-irq");
if (ret)
@ -294,5 +321,6 @@ MACHINE_START(MX31LITE, "LogicPD i.MX31 SOM")
.init_irq = mx31_init_irq,
.init_time = mx31lite_timer_init,
.init_machine = mx31lite_init,
.init_late = mx31lite_late,
.restart = mxc_restart,
MACHINE_END

33
arch/arm/mach-imx/mx31lite-db.c
View File

@ -45,19 +45,6 @@
*/
static unsigned int litekit_db_board_pins[] __initdata = {
/* UART1 */
MX31_PIN_CTS1__CTS1,
MX31_PIN_RTS1__RTS1,
MX31_PIN_TXD1__TXD1,
MX31_PIN_RXD1__RXD1,
/* SPI 0 */
MX31_PIN_CSPI1_SCLK__SCLK,
MX31_PIN_CSPI1_MOSI__MOSI,
MX31_PIN_CSPI1_MISO__MISO,
MX31_PIN_CSPI1_SPI_RDY__SPI_RDY,
MX31_PIN_CSPI1_SS0__SS0,
MX31_PIN_CSPI1_SS1__SS1,
MX31_PIN_CSPI1_SS2__SS2,
/* SDHC1 */
MX31_PIN_SD1_DATA0__SD1_DATA0,
MX31_PIN_SD1_DATA1__SD1_DATA1,
@ -67,11 +54,6 @@ static unsigned int litekit_db_board_pins[] __initdata = {
MX31_PIN_SD1_CMD__SD1_CMD,
};
/* UART */
static const struct imxuart_platform_data uart_pdata __initconst = {
.flags = IMXUART_HAVE_RTSCTS,
};
/* MMC */
static int gpio_det, gpio_wp;
@ -146,19 +128,6 @@ static const struct imxmmc_platform_data mmc_pdata __initconst = {
.exit = mxc_mmc1_exit,
};
/* SPI */
static int spi_internal_chipselect[] = {
MXC_SPI_CS(0),
MXC_SPI_CS(1),
MXC_SPI_CS(2),
};
static const struct spi_imx_master spi0_pdata __initconst = {
.chipselect = spi_internal_chipselect,
.num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
};
/* GPIO LEDs */
static const struct gpio_led litekit_leds[] __initconst = {
@ -187,9 +156,7 @@ void __init mx31lite_db_init(void)
mxc_iomux_setup_multiple_pins(litekit_db_board_pins,
ARRAY_SIZE(litekit_db_board_pins),
"development board pins");
imx31_add_imx_uart0(&uart_pdata);
imx31_add_mxc_mmc(0, &mmc_pdata);
imx31_add_spi_imx0(&spi0_pdata);
gpio_led_register_device(-1, &litekit_led_platform_data);
imx31_add_imx2_wdt();
imx31_add_mxc_rtc();