summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-lpc32xx/phy3250.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-lpc32xx/phy3250.c')
-rw-r--r--arch/arm/mach-lpc32xx/phy3250.c149
1 files changed, 52 insertions, 97 deletions
diff --git a/arch/arm/mach-lpc32xx/phy3250.c b/arch/arm/mach-lpc32xx/phy3250.c
index 7f7401e..540106c 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