diff options
author | Vladimir Zapolskiy <vz@mleia.com> | 2016-09-19 03:37:14 +0200 |
---|---|---|
committer | Shawn Guo <shawnguo@kernel.org> | 2016-09-20 16:34:47 +0200 |
commit | 4ed9bb21847b9459cdc16a4027b6058d0540dcc8 (patch) | |
tree | 7aaf8bae6246b222943e463100ded2a739521162 /arch/arm/mach-imx | |
parent | ARM: imx legacy: kzm: move peripheral initialization to .init_late (diff) | |
download | linux-4ed9bb21847b9459cdc16a4027b6058d0540dcc8.tar.xz linux-4ed9bb21847b9459cdc16a4027b6058d0540dcc8.zip |
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>
Diffstat (limited to 'arch/arm/mach-imx')
-rw-r--r-- | arch/arm/mach-imx/mach-mx31lite.c | 68 | ||||
-rw-r--r-- | arch/arm/mach-imx/mx31lite-db.c | 33 |
2 files changed, 48 insertions, 53 deletions
diff --git a/arch/arm/mach-imx/mach-mx31lite.c b/arch/arm/mach-imx/mach-mx31lite.c index 4822a1738de4..f033a57d5694 100644 --- a/arch/arm/mach-imx/mach-mx31lite.c +++ b/arch/arm/mach-imx/mach-mx31lite.c @@ -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 diff --git a/arch/arm/mach-imx/mx31lite-db.c b/arch/arm/mach-imx/mx31lite-db.c index 5a160b7e4fce..c66a006bf2fd 100644 --- a/arch/arm/mach-imx/mx31lite-db.c +++ b/arch/arm/mach-imx/mx31lite-db.c @@ -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(); 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