projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 9f0749e3 SH |
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), | |
| 32 | { /* sentinel */ } | |
| 33 | }; | |
| 34 | ||
| 35 | static int __init imx27_avic_add_irq_domain(struct device_node *np, | |
| 36 | struct device_node *interrupt_parent) | |
| 37 | { | |
| de1de159 | 38 | irq_domain_add_legacy(np, 64, 0, 0, &irq_domain_simple_ops, NULL); |
| 9f0749e3 SH |
39 | return 0; |
| 40 | } | |
| 41 | ||
| 42 | static int __init imx27_gpio_add_irq_domain(struct device_node *np, | |
| 43 | struct device_node *interrupt_parent) | |
| 44 | { | |
| 45 | static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS; | |
| 46 | ||
| de1de159 FE |
47 | gpio_irq_base -= 32; |
| 48 | irq_domain_add_legacy(np, 32, gpio_irq_base, 0, &irq_domain_simple_ops, | |
| 49 | NULL); | |
| 9f0749e3 SH |
50 | |
| 51 | return 0; | |
| 52 | } | |
| 53 | ||
| 54 | static const struct of_device_id imx27_irq_match[] __initconst = { | |
| 55 | { .compatible = "fsl,imx27-avic", .data = imx27_avic_add_irq_domain, }, | |
| 56 | { .compatible = "fsl,imx27-gpio", .data = imx27_gpio_add_irq_domain, }, | |
| 57 | { /* sentinel */ } | |
| 58 | }; | |
| 59 | ||
| 60 | static void __init imx27_dt_init(void) | |
| 61 | { | |
| 62 | of_irq_init(imx27_irq_match); | |
| 63 | ||
| 64 | of_platform_populate(NULL, of_default_bus_match_table, | |
| 65 | imx27_auxdata_lookup, NULL); | |
| 66 | } | |
| 67 | ||
| 68 | static void __init imx27_timer_init(void) | |
| 69 | { | |
| 70 | mx27_clocks_init_dt(); | |
| 71 | } | |
| 72 | ||
| 73 | static struct sys_timer imx27_timer = { | |
| 74 | .init = imx27_timer_init, | |
| 75 | }; | |
| 76 | ||
| 77 | static const char *imx27_dt_board_compat[] __initdata = { | |
| 78 | "fsl,imx27", | |
| 79 | NULL | |
| 80 | }; | |
| 81 | ||
| 82 | DT_MACHINE_START(IMX27_DT, "Freescale i.MX27 (Device Tree Support)") | |
| 83 | .map_io = mx27_map_io, | |
| 84 | .init_early = imx27_init_early, | |
| 85 | .init_irq = mx27_init_irq, | |
| 86 | .handle_irq = imx27_handle_irq, | |
| 87 | .timer = &imx27_timer, | |
| 88 | .init_machine = imx27_dt_init, | |
| 89 | .dt_compat = imx27_dt_board_compat, | |
| 90 | .restart = mxc_restart, | |
| 91 | MACHINE_END |