diff options
Diffstat (limited to 'arch/arm/mach-lpc32xx/phy3250.c')
| -rw-r--r-- | arch/arm/mach-lpc32xx/phy3250.c | 149 |
1 files changed, 52 insertions, 97 deletions
diff --git a/arch/arm/mach-lpc32xx/phy3250.c b/arch/arm/mach-lpc32xx/phy3250.c index 7f7401ec7487..540106cdb9ec 100644 --- a/arch/arm/mach-lpc32xx/phy3250.c +++ b/arch/arm/mach-lpc32xx/phy3250.c @@ -1,8 +1,9 @@ /* - * arch/arm/mach-lpc32xx/phy3250.c + * Platform support for LPC32xx SoC * * Author: Kevin Wells <kevin.wells@nxp.com> * + * Copyright (C) 2012 Roland Stigge <stigge@antcom.de> * Copyright (C) 2010 NXP Semiconductors * * This program is free software; you can redistribute it and/or modify @@ -25,11 +26,16 @@ #include <linux/device.h> #include <linux/spi/spi.h> #include <linux/spi/eeprom.h> -#include <linux/leds.h> #include <linux/gpio.h> #include <linux/amba/bus.h> #include <linux/amba/clcd.h> #include <linux/amba/pl022.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> +#include <linux/of_platform.h> +#include <linux/clk.h> +#include <linux/amba/pl08x.h> #include <asm/setup.h> #include <asm/mach-types.h> @@ -47,7 +53,6 @@ #define SPI0_CS_GPIO LPC32XX_GPIO(LPC32XX_GPIO_P3_GRP, 5) #define LCD_POWER_GPIO LPC32XX_GPIO(LPC32XX_GPO_P3_GRP, 0) #define BKL_POWER_GPIO LPC32XX_GPIO(LPC32XX_GPO_P3_GRP, 4) -#define LED_GPIO LPC32XX_GPIO(LPC32XX_GPO_P3_GRP, 1) /* * AMBA LCD controller @@ -150,9 +155,6 @@ static struct clcd_board lpc32xx_clcd_data = { .remove = lpc32xx_clcd_remove, }; -static AMBA_AHB_DEVICE(lpc32xx_clcd, "dev:clcd", 0, - LPC32XX_LCD_BASE, { IRQ_LPC32XX_LCD }, &lpc32xx_clcd_data); - /* * AMBA SSP (SPI) */ @@ -180,8 +182,11 @@ static struct pl022_ssp_controller lpc32xx_ssp0_data = { .enable_dma = 0, }; -static AMBA_APB_DEVICE(lpc32xx_ssp0, "dev:ssp0", 0, - LPC32XX_SSP0_BASE, { IRQ_LPC32XX_SSP0 }, &lpc32xx_ssp0_data); +static struct pl022_ssp_controller lpc32xx_ssp1_data = { + .bus_id = 1, + .num_chipselect = 1, + .enable_dma = 0, +}; /* AT25 driver registration */ static int __init phy3250_spi_board_register(void) @@ -221,73 +226,20 @@ static int __init phy3250_spi_board_register(void) } arch_initcall(phy3250_spi_board_register); -static struct i2c_board_info __initdata phy3250_i2c_board_info[] = { - { - I2C_BOARD_INFO("pcf8563", 0x51), - }, -}; - -static struct gpio_led phy_leds[] = { - { - .name = "led0", - .gpio = LED_GPIO, - .active_low = 1, - .default_trigger = "heartbeat", - }, -}; - -static struct gpio_led_platform_data led_data = { - .leds = phy_leds, - .num_leds = ARRAY_SIZE(phy_leds), -}; - -static struct platform_device lpc32xx_gpio_led_device = { - .name = "leds-gpio", - .id = -1, - .dev.platform_data = &led_data, +static struct pl08x_platform_data pl08x_pd = { }; -static struct platform_device *phy3250_devs[] __initdata = { - &lpc32xx_rtc_device, - &lpc32xx_tsc_device, - &lpc32xx_i2c0_device, - &lpc32xx_i2c1_device, - &lpc32xx_i2c2_device, - &lpc32xx_watchdog_device, - &lpc32xx_gpio_led_device, - &lpc32xx_adc_device, - &lpc32xx_ohci_device, - &lpc32xx_net_device, +static const struct of_dev_auxdata lpc32xx_auxdata_lookup[] __initconst = { + OF_DEV_AUXDATA("arm,pl022", 0x20084000, "dev:ssp0", &lpc32xx_ssp0_data), + OF_DEV_AUXDATA("arm,pl022", 0x2008C000, "dev:ssp1", &lpc32xx_ssp1_data), + OF_DEV_AUXDATA("arm,pl110", 0x31040000, "dev:clcd", &lpc32xx_clcd_data), + OF_DEV_AUXDATA("arm,pl080", 0x31000000, "pl08xdmac", &pl08x_pd), + { } }; -static struct amba_device *amba_devs[] __initdata = { - &lpc32xx_clcd_device, - &lpc32xx_ssp0_device, -}; - -/* - * Board specific functions - */ -static void __init phy3250_board_init(void) +static void __init lpc3250_machine_init(void) { u32 tmp; - int i; - - lpc32xx_gpio_init(); - - /* Register GPIOs used on this board */ - if (gpio_request(SPI0_CS_GPIO, "spi0 cs")) - printk(KERN_ERR "Error requesting gpio %u", - SPI0_CS_GPIO); - else if (gpio_direction_output(SPI0_CS_GPIO, 1)) - printk(KERN_ERR "Error setting gpio %u to output", - SPI0_CS_GPIO); - - /* Setup network interface for RMII mode */ - tmp = __raw_readl(LPC32XX_CLKPWR_MACCLK_CTRL); - tmp &= ~LPC32XX_CLKPWR_MACCTRL_PINS_MSK; - tmp |= LPC32XX_CLKPWR_MACCTRL_USE_RMII_PINS; - __raw_writel(tmp, LPC32XX_CLKPWR_MACCLK_CTRL); /* Setup SLC NAND controller muxing */ __raw_writel(LPC32XX_CLKPWR_NANDCLK_SEL_SLC, @@ -300,6 +252,12 @@ static void __init phy3250_board_init(void) tmp |= LPC32XX_CLKPWR_LCDCTRL_LCDTYPE_TFT16; __raw_writel(tmp, LPC32XX_CLKPWR_LCDCLK_CTRL); + /* Set up USB power */ + tmp = __raw_readl(LPC32XX_CLKPWR_USB_CTRL); + tmp |= LPC32XX_CLKPWR_USBCTRL_HCLK_EN | + LPC32XX_CLKPWR_USBCTRL_USBI2C_EN; + __raw_writel(tmp, LPC32XX_CLKPWR_USB_CTRL); + /* Set up I2C pull levels */ tmp = __raw_readl(LPC32XX_CLKPWR_I2C_CLK_CTRL); tmp |= LPC32XX_CLKPWR_I2CCLK_USBI2CHI_DRIVE | @@ -321,54 +279,51 @@ static void __init phy3250_board_init(void) /* * AMBA peripheral clocks need to be enabled prior to AMBA device * detection or a data fault will occur, so enable the clocks - * here. However, we don't want to enable them if the peripheral - * isn't included in the image + * here. */ -#ifdef CONFIG_FB_ARMCLCD tmp = __raw_readl(LPC32XX_CLKPWR_LCDCLK_CTRL); __raw_writel((tmp | LPC32XX_CLKPWR_LCDCTRL_CLK_EN), LPC32XX_CLKPWR_LCDCLK_CTRL); -#endif -#ifdef CONFIG_SPI_PL022 + tmp = __raw_readl(LPC32XX_CLKPWR_SSP_CLK_CTRL); __raw_writel((tmp | LPC32XX_CLKPWR_SSPCTRL_SSPCLK0_EN), LPC32XX_CLKPWR_SSP_CLK_CTRL); -#endif - platform_add_devices(phy3250_devs, ARRAY_SIZE(phy3250_devs)); - for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { - struct amba_device *d = amba_devs[i]; - amba_device_register(d, &iomem_resource); - } + tmp = __raw_readl(LPC32XX_CLKPWR_DMA_CLK_CTRL); + __raw_writel((tmp | LPC32XX_CLKPWR_DMACLKCTRL_CLK_EN), + LPC32XX_CLKPWR_DMA_CLK_CTRL); /* Test clock needed for UDA1380 initial init */ __raw_writel(LPC32XX_CLKPWR_TESTCLK2_SEL_MOSC | LPC32XX_CLKPWR_TESTCLK_TESTCLK2_EN, LPC32XX_CLKPWR_TEST_CLK_SEL); - i2c_register_board_info(0, phy3250_i2c_board_info, - ARRAY_SIZE(phy3250_i2c_board_info)); -} - -static int __init lpc32xx_display_uid(void) -{ - u32 uid[4]; - - lpc32xx_get_uid(uid); - - printk(KERN_INFO "LPC32XX unique ID: %08x%08x%08x%08x\n", - uid[3], uid[2], uid[1], uid[0]); + of_platform_populate(NULL, of_default_bus_match_table, + lpc32xx_auxdata_lookup, NULL); - return 1; + /* Register GPIOs used on this board */ + if (gpio_request(SPI0_CS_GPIO, "spi0 cs")) + printk(KERN_ERR "Error requesting gpio %u", + SPI0_CS_GPIO); + else if (gpio_direction_output(SPI0_CS_GPIO, 1)) + printk(KERN_ERR "Error setting gpio %u to output", + SPI0_CS_GPIO); } -arch_initcall(lpc32xx_display_uid); -MACHINE_START(PHY3250, "Phytec 3250 board with the LPC3250 Microcontroller") - /* Maintainer: Kevin Wells, NXP Semiconductors */ +static char const *lpc32xx_dt_compat[] __initdata = { + "nxp,lpc3220", + "nxp,lpc3230", + "nxp,lpc3240", + "nxp,lpc3250", + NULL +}; + +DT_MACHINE_START(LPC32XX_DT, "LPC32XX SoC (Flattened Device Tree)") .atag_offset = 0x100, .map_io = lpc32xx_map_io, .init_irq = lpc32xx_init_irq, .timer = &lpc32xx_timer, - .init_machine = phy3250_board_init, + .init_machine = lpc3250_machine_init, + .dt_compat = lpc32xx_dt_compat, .restart = lpc23xx_restart, MACHINE_END |