projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 9daaf31a SG |
1 | /* |
| 2 | * Copyright 2011 Freescale Semiconductor, Inc. All Rights Reserved. | |
| 3 | * Copyright 2011 Linaro Ltd. | |
| 4 | * | |
| 5 | * The code contained herein is licensed under the GNU General Public | |
| 6 | * License. You may obtain a copy of the GNU General Public License | |
| 7 | * Version 2 or later at the following locations: | |
| 8 | * | |
| 9 | * http://www.opensource.org/licenses/gpl-license.html | |
| 10 | * http://www.gnu.org/copyleft/gpl.html | |
| 11 | */ | |
| 12 | ||
| 13 | #include <linux/irq.h> | |
| 14 | #include <linux/irqdomain.h> | |
| 15 | #include <linux/of_irq.h> | |
| 16 | #include <linux/of_platform.h> | |
| 17 | #include <asm/mach/arch.h> | |
| 18 | #include <asm/mach/time.h> | |
| 19 | #include <mach/common.h> | |
| 20 | #include <mach/mx51.h> | |
| 21 | ||
| 22 | /* | |
| 23 | * Lookup table for attaching a specific name and platform_data pointer to | |
| 24 | * devices as they get created by of_platform_populate(). Ideally this table | |
| 25 | * would not exist, but the current clock implementation depends on some devices | |
| 26 | * having a specific name. | |
| 27 | */ | |
| 28 | static const struct of_dev_auxdata imx51_auxdata_lookup[] __initconst = { | |
| 29 | OF_DEV_AUXDATA("fsl,imx51-uart", MX51_UART1_BASE_ADDR, "imx21-uart.0", NULL), | |
| 30 | OF_DEV_AUXDATA("fsl,imx51-uart", MX51_UART2_BASE_ADDR, "imx21-uart.1", NULL), | |
| 31 | OF_DEV_AUXDATA("fsl,imx51-uart", MX51_UART3_BASE_ADDR, "imx21-uart.2", NULL), | |
| 32 | OF_DEV_AUXDATA("fsl,imx51-fec", MX51_FEC_BASE_ADDR, "imx27-fec.0", NULL), | |
| 33 | OF_DEV_AUXDATA("fsl,imx51-esdhc", MX51_ESDHC1_BASE_ADDR, "sdhci-esdhc-imx51.0", NULL), | |
| 34 | OF_DEV_AUXDATA("fsl,imx51-esdhc", MX51_ESDHC2_BASE_ADDR, "sdhci-esdhc-imx51.1", NULL), | |
| 35 | OF_DEV_AUXDATA("fsl,imx51-esdhc", MX51_ESDHC3_BASE_ADDR, "sdhci-esdhc-imx51.2", NULL), | |
| 36 | OF_DEV_AUXDATA("fsl,imx51-esdhc", MX51_ESDHC4_BASE_ADDR, "sdhci-esdhc-imx51.3", NULL), | |
| 37 | OF_DEV_AUXDATA("fsl,imx51-ecspi", MX51_ECSPI1_BASE_ADDR, "imx51-ecspi.0", NULL), | |
| 38 | OF_DEV_AUXDATA("fsl,imx51-ecspi", MX51_ECSPI2_BASE_ADDR, "imx51-ecspi.1", NULL), | |
| 39 | OF_DEV_AUXDATA("fsl,imx51-cspi", MX51_CSPI_BASE_ADDR, "imx35-cspi.0", NULL), | |
| 40 | OF_DEV_AUXDATA("fsl,imx51-i2c", MX51_I2C1_BASE_ADDR, "imx-i2c.0", NULL), | |
| 41 | OF_DEV_AUXDATA("fsl,imx51-i2c", MX51_I2C2_BASE_ADDR, "imx-i2c.1", NULL), | |
| 42 | OF_DEV_AUXDATA("fsl,imx51-sdma", MX51_SDMA_BASE_ADDR, "imx35-sdma", NULL), | |
| 43 | OF_DEV_AUXDATA("fsl,imx51-wdt", MX51_WDOG1_BASE_ADDR, "imx2-wdt.0", NULL), | |
| 44 | { /* sentinel */ } | |
| 45 | }; | |
| 46 | ||
| 2a3267a4 | 47 | static int __init imx51_tzic_add_irq_domain(struct device_node *np, |
| 9daaf31a SG |
48 | struct device_node *interrupt_parent) |
| 49 | { | |
| 6b783f7c | 50 | irq_domain_add_legacy(np, 128, 0, 0, &irq_domain_simple_ops, NULL); |
| 2a3267a4 | 51 | return 0; |
| 9daaf31a SG |
52 | } |
| 53 | ||
| 2a3267a4 | 54 | static int __init imx51_gpio_add_irq_domain(struct device_node *np, |
| 9daaf31a SG |
55 | struct device_node *interrupt_parent) |
| 56 | { | |
| 04aafd71 | 57 | static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS; |
| 9daaf31a | 58 | |
| 04aafd71 | 59 | gpio_irq_base -= 32; |
| 6b783f7c | 60 | irq_domain_add_legacy(np, 32, gpio_irq_base, 0, &irq_domain_simple_ops, NULL); |
| 2a3267a4 SG |
61 | |
| 62 | return 0; | |
| 9daaf31a SG |
63 | } |
| 64 | ||
| 65 | static const struct of_device_id imx51_irq_match[] __initconst = { | |
| 66 | { .compatible = "fsl,imx51-tzic", .data = imx51_tzic_add_irq_domain, }, | |
| 67 | { .compatible = "fsl,imx51-gpio", .data = imx51_gpio_add_irq_domain, }, | |
| 68 | { /* sentinel */ } | |
| 69 | }; | |
| 70 | ||
| 71 | static const struct of_device_id imx51_iomuxc_of_match[] __initconst = { | |
| 72 | { .compatible = "fsl,imx51-iomuxc-babbage", .data = imx51_babbage_common_init, }, | |
| 73 | { /* sentinel */ } | |
| 74 | }; | |
| 75 | ||
| 76 | static void __init imx51_dt_init(void) | |
| 77 | { | |
| 78 | struct device_node *node; | |
| 79 | const struct of_device_id *of_id; | |
| 80 | void (*func)(void); | |
| 81 | ||
| 82 | of_irq_init(imx51_irq_match); | |
| 83 | ||
| 84 | node = of_find_matching_node(NULL, imx51_iomuxc_of_match); | |
| 85 | if (node) { | |
| 86 | of_id = of_match_node(imx51_iomuxc_of_match, node); | |
| 87 | func = of_id->data; | |
| 88 | func(); | |
| 89 | of_node_put(node); | |
| 90 | } | |
| 91 | ||
| 92 | of_platform_populate(NULL, of_default_bus_match_table, | |
| 93 | imx51_auxdata_lookup, NULL); | |
| 94 | } | |
| 95 | ||
| 96 | static void __init imx51_timer_init(void) | |
| 97 | { | |
| 98 | mx51_clocks_init_dt(); | |
| 99 | } | |
| 100 | ||
| 101 | static struct sys_timer imx51_timer = { | |
| 102 | .init = imx51_timer_init, | |
| 103 | }; | |
| 104 | ||
| 105 | static const char *imx51_dt_board_compat[] __initdata = { | |
| 106 | "fsl,imx51-babbage", | |
| 3f8976d9 | 107 | "fsl,imx51", |
| 9daaf31a SG |
108 | NULL |
| 109 | }; | |
| 110 | ||
| 111 | DT_MACHINE_START(IMX51_DT, "Freescale i.MX51 (Device Tree Support)") | |
| 112 | .map_io = mx51_map_io, | |
| 113 | .init_early = imx51_init_early, | |
| 114 | .init_irq = mx51_init_irq, | |
| 115 | .handle_irq = imx51_handle_irq, | |
| 116 | .timer = &imx51_timer, | |
| 117 | .init_machine = imx51_dt_init, | |
| 118 | .dt_compat = imx51_dt_board_compat, | |
| 65ea7884 | 119 | .restart = mxc_restart, |
| 9daaf31a | 120 | MACHINE_END |