Sascha Hauer | 9f0749e | 2012-02-28 21:57:50 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 Sascha Hauer, Pengutronix |
| 3 | * |
| 4 | * The code contained herein is licensed under the GNU General Public |
| 5 | * License. You may obtain a copy of the GNU General Public License |
| 6 | * Version 2 or later at the following locations: |
| 7 | * |
| 8 | * http://www.opensource.org/licenses/gpl-license.html |
| 9 | * http://www.gnu.org/copyleft/gpl.html |
| 10 | */ |
| 11 | |
| 12 | #include <linux/irq.h> |
| 13 | #include <linux/irqdomain.h> |
| 14 | #include <linux/of_irq.h> |
| 15 | #include <linux/of_platform.h> |
| 16 | #include <asm/mach/arch.h> |
| 17 | #include <asm/mach/time.h> |
| 18 | #include <mach/common.h> |
| 19 | #include <mach/mx27.h> |
| 20 | |
| 21 | static const struct of_dev_auxdata imx27_auxdata_lookup[] __initconst = { |
| 22 | OF_DEV_AUXDATA("fsl,imx27-uart", MX27_UART1_BASE_ADDR, "imx21-uart.0", NULL), |
| 23 | OF_DEV_AUXDATA("fsl,imx27-uart", MX27_UART2_BASE_ADDR, "imx21-uart.1", NULL), |
| 24 | OF_DEV_AUXDATA("fsl,imx27-uart", MX27_UART3_BASE_ADDR, "imx21-uart.2", NULL), |
| 25 | OF_DEV_AUXDATA("fsl,imx27-fec", MX27_FEC_BASE_ADDR, "imx27-fec.0", NULL), |
| 26 | OF_DEV_AUXDATA("fsl,imx27-i2c", MX27_I2C1_BASE_ADDR, "imx-i2c.0", NULL), |
| 27 | OF_DEV_AUXDATA("fsl,imx27-i2c", MX27_I2C2_BASE_ADDR, "imx-i2c.1", NULL), |
| 28 | OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI1_BASE_ADDR, "imx27-cspi.0", NULL), |
| 29 | OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI2_BASE_ADDR, "imx27-cspi.1", NULL), |
| 30 | OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI3_BASE_ADDR, "imx27-cspi.2", NULL), |
| 31 | OF_DEV_AUXDATA("fsl,imx27-wdt", MX27_WDOG_BASE_ADDR, "imx2-wdt.0", NULL), |
Uwe Kleine-König | 3778736 | 2012-04-23 11:23:42 +0200 | [diff] [blame] | 32 | OF_DEV_AUXDATA("fsl,imx27-nand", MX27_NFC_BASE_ADDR, "mxc_nand.0", NULL), |
Sascha Hauer | 9f0749e | 2012-02-28 21:57:50 +0100 | [diff] [blame] | 33 | { /* sentinel */ } |
| 34 | }; |
| 35 | |
| 36 | static int __init imx27_avic_add_irq_domain(struct device_node *np, |
| 37 | struct device_node *interrupt_parent) |
| 38 | { |
Fabio Estevam | de1de15 | 2012-04-11 22:12:09 -0300 | [diff] [blame] | 39 | irq_domain_add_legacy(np, 64, 0, 0, &irq_domain_simple_ops, NULL); |
Sascha Hauer | 9f0749e | 2012-02-28 21:57:50 +0100 | [diff] [blame] | 40 | return 0; |
| 41 | } |
| 42 | |
| 43 | static int __init imx27_gpio_add_irq_domain(struct device_node *np, |
| 44 | struct device_node *interrupt_parent) |
| 45 | { |
| 46 | static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS; |
| 47 | |
Fabio Estevam | de1de15 | 2012-04-11 22:12:09 -0300 | [diff] [blame] | 48 | gpio_irq_base -= 32; |
| 49 | irq_domain_add_legacy(np, 32, gpio_irq_base, 0, &irq_domain_simple_ops, |
| 50 | NULL); |
Sascha Hauer | 9f0749e | 2012-02-28 21:57:50 +0100 | [diff] [blame] | 51 | |
| 52 | return 0; |
| 53 | } |
| 54 | |
| 55 | static const struct of_device_id imx27_irq_match[] __initconst = { |
| 56 | { .compatible = "fsl,imx27-avic", .data = imx27_avic_add_irq_domain, }, |
| 57 | { .compatible = "fsl,imx27-gpio", .data = imx27_gpio_add_irq_domain, }, |
| 58 | { /* sentinel */ } |
| 59 | }; |
| 60 | |
| 61 | static void __init imx27_dt_init(void) |
| 62 | { |
| 63 | of_irq_init(imx27_irq_match); |
| 64 | |
| 65 | of_platform_populate(NULL, of_default_bus_match_table, |
| 66 | imx27_auxdata_lookup, NULL); |
| 67 | } |
| 68 | |
| 69 | static void __init imx27_timer_init(void) |
| 70 | { |
| 71 | mx27_clocks_init_dt(); |
| 72 | } |
| 73 | |
| 74 | static struct sys_timer imx27_timer = { |
| 75 | .init = imx27_timer_init, |
| 76 | }; |
| 77 | |
Uwe Kleine-König | 3e38656 | 2012-06-08 12:04:50 +0200 | [diff] [blame^] | 78 | static const char * const imx27_dt_board_compat[] __initconst = { |
Sascha Hauer | 9f0749e | 2012-02-28 21:57:50 +0100 | [diff] [blame] | 79 | "fsl,imx27", |
| 80 | NULL |
| 81 | }; |
| 82 | |
| 83 | DT_MACHINE_START(IMX27_DT, "Freescale i.MX27 (Device Tree Support)") |
| 84 | .map_io = mx27_map_io, |
| 85 | .init_early = imx27_init_early, |
| 86 | .init_irq = mx27_init_irq, |
| 87 | .handle_irq = imx27_handle_irq, |
| 88 | .timer = &imx27_timer, |
| 89 | .init_machine = imx27_dt_init, |
| 90 | .dt_compat = imx27_dt_board_compat, |
| 91 | .restart = mxc_restart, |
| 92 | MACHINE_END |