diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-mx3/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm/mach-mx3/mach-mx31_3ds.c | 169 |
2 files changed, 5 insertions, 165 deletions
diff --git a/arch/arm/mach-mx3/Kconfig b/arch/arm/mach-mx3/Kconfig index a11112afde5..e063657e1bf 100644 --- a/arch/arm/mach-mx3/Kconfig +++ b/arch/arm/mach-mx3/Kconfig @@ -67,6 +67,7 @@ config MACH_MX31LITE config MACH_MX31_3DS bool "Support MX31PDK (3DS)" select ARCH_MX31 + select MXC_DEBUG_BOARD select IMX_HAVE_PLATFORM_IMX_UART select IMX_HAVE_PLATFORM_MXC_NAND select IMX_HAVE_PLATFORM_SPI_IMX diff --git a/arch/arm/mach-mx3/mach-mx31_3ds.c b/arch/arm/mach-mx3/mach-mx31_3ds.c index d4d9e7a1f73..6fe69e124d3 100644 --- a/arch/arm/mach-mx3/mach-mx31_3ds.c +++ b/arch/arm/mach-mx3/mach-mx31_3ds.c @@ -18,7 +18,6 @@ #include <linux/clk.h> #include <linux/irq.h> #include <linux/gpio.h> -#include <linux/smsc911x.h> #include <linux/platform_device.h> #include <linux/mfd/mc13783.h> #include <linux/spi/spi.h> @@ -34,6 +33,7 @@ #include <asm/mach/map.h> #include <mach/common.h> #include <mach/iomux-mx3.h> +#include <mach/3ds_debugboard.h> #include "devices-imx31.h" #include "devices.h" @@ -254,173 +254,11 @@ static const struct imxuart_platform_data uart_pdata __initconst = { }; /* - * Support for the SMSC9217 on the Debug board. - */ - -static struct smsc911x_platform_config smsc911x_config = { - .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, - .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL, - .flags = SMSC911X_USE_16BIT | SMSC911X_FORCE_INTERNAL_PHY, - .phy_interface = PHY_INTERFACE_MODE_MII, -}; - -static struct resource smsc911x_resources[] = { - { - .start = LAN9217_BASE_ADDR, - .end = LAN9217_BASE_ADDR + 0xff, - .flags = IORESOURCE_MEM, - }, { - .start = EXPIO_INT_ENET, - .end = EXPIO_INT_ENET, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device smsc911x_device = { - .name = "smsc911x", - .id = -1, - .num_resources = ARRAY_SIZE(smsc911x_resources), - .resource = smsc911x_resources, - .dev = { - .platform_data = &smsc911x_config, - }, -}; - -/* - * Routines for the CPLD on the debug board. It contains a CPLD handling - * LEDs, switches, interrupts for Ethernet. - */ - -static void mx31_3ds_expio_irq_handler(uint32_t irq, struct irq_desc *desc) -{ - uint32_t imr_val; - uint32_t int_valid; - uint32_t expio_irq; - - imr_val = __raw_readw(CPLD_INT_MASK_REG); - int_valid = __raw_readw(CPLD_INT_STATUS_REG) & ~imr_val; - - expio_irq = MXC_EXP_IO_BASE; - for (; int_valid != 0; int_valid >>= 1, expio_irq++) { - if ((int_valid & 1) == 0) - continue; - generic_handle_irq(expio_irq); - } -} - -/* - * Disable an expio pin's interrupt by setting the bit in the imr. - * @param irq an expio virtual irq number - */ -static void expio_mask_irq(uint32_t irq) -{ - uint16_t reg; - uint32_t expio = MXC_IRQ_TO_EXPIO(irq); - - /* mask the interrupt */ - reg = __raw_readw(CPLD_INT_MASK_REG); - reg |= 1 << expio; - __raw_writew(reg, CPLD_INT_MASK_REG); -} - -/* - * Acknowledge an expanded io pin's interrupt by clearing the bit in the isr. - * @param irq an expanded io virtual irq number - */ -static void expio_ack_irq(uint32_t irq) -{ - uint32_t expio = MXC_IRQ_TO_EXPIO(irq); - - /* clear the interrupt status */ - __raw_writew(1 << expio, CPLD_INT_RESET_REG); - __raw_writew(0, CPLD_INT_RESET_REG); - /* mask the interrupt */ - expio_mask_irq(irq); -} - -/* - * Enable a expio pin's interrupt by clearing the bit in the imr. - * @param irq a expio virtual irq number - */ -static void expio_unmask_irq(uint32_t irq) -{ - uint16_t reg; - uint32_t expio = MXC_IRQ_TO_EXPIO(irq); - - /* unmask the interrupt */ - reg = __raw_readw(CPLD_INT_MASK_REG); - reg &= ~(1 << expio); - __raw_writew(reg, CPLD_INT_MASK_REG); -} - -static struct irq_chip expio_irq_chip = { - .ack = expio_ack_irq, - .mask = expio_mask_irq, - .unmask = expio_unmask_irq, -}; - -static int __init mx31_3ds_init_expio(void) -{ - int i; - int ret; - - /* Check if there's a debug board connected */ - if ((__raw_readw(CPLD_MAGIC_NUMBER1_REG) != 0xAAAA) || - (__raw_readw(CPLD_MAGIC_NUMBER2_REG) != 0x5555) || - (__raw_readw(CPLD_MAGIC_NUMBER3_REG) != 0xCAFE)) { - /* No Debug board found */ - return -ENODEV; - } - - pr_info("i.MX31 3DS Debug board detected, rev = 0x%04X\n", - __raw_readw(CPLD_CODE_VER_REG)); - - /* - * Configure INT line as GPIO input - */ - ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1), "sms9217-irq"); - if (ret) - pr_warning("could not get LAN irq gpio\n"); - else - gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1)); - - /* Disable the interrupts and clear the status */ - __raw_writew(0, CPLD_INT_MASK_REG); - __raw_writew(0xFFFF, CPLD_INT_RESET_REG); - __raw_writew(0, CPLD_INT_RESET_REG); - __raw_writew(0x1F, CPLD_INT_MASK_REG); - for (i = MXC_EXP_IO_BASE; - i < (MXC_EXP_IO_BASE + MXC_MAX_EXP_IO_LINES); - i++) { - set_irq_chip(i, &expio_irq_chip); - set_irq_handler(i, handle_level_irq); - set_irq_flags(i, IRQF_VALID); - } - set_irq_type(EXPIO_PARENT_INT, IRQ_TYPE_LEVEL_LOW); - set_irq_chained_handler(EXPIO_PARENT_INT, mx31_3ds_expio_irq_handler); - - return 0; -} - -/* - * This structure defines the MX31 memory map. - */ -static struct map_desc mx31_3ds_io_desc[] __initdata = { - { - .virtual = MX31_CS5_BASE_ADDR_VIRT, - .pfn = __phys_to_pfn(MX31_CS5_BASE_ADDR), - .length = MX31_CS5_SIZE, - .type = MT_DEVICE, - }, -}; - -/* * Set up static virtual mappings. */ static void __init mx31_3ds_map_io(void) { mx31_map_io(); - iotable_init(mx31_3ds_io_desc, ARRAY_SIZE(mx31_3ds_io_desc)); } /*! @@ -443,8 +281,9 @@ static void __init mxc_board_init(void) mx31_3ds_usbotg_init(); mxc_register_device(&mxc_otg_udc_device, &usbotg_pdata); - if (!mx31_3ds_init_expio()) - platform_device_register(&smsc911x_device); + if (!mxc_expio_init(CS5_BASE_ADDR, EXPIO_PARENT_INT)) + printk(KERN_WARNING "Init of the debugboard failed, all " + "devices on the board are unusable.\n"); } static void __init mx31_3ds_timer_init(void) |