/* * SAMSUNG EXYNOS5250 Flattened Device Tree enabled machine * * Copyright (c) 2012 Samsung Electronics Co., Ltd. * http://www.samsung.com * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include #include #include #include #include #include #include #include #include #include #include #include "common.h" /* * The following lookup table is used to override device names when devices * are registered from device tree. This is temporarily added to enable * device tree support addition for the EXYNOS5 architecture. * * For drivers that require platform data to be provided from the machine * file, a platform data pointer can also be supplied along with the * devices names. Usually, the platform data elements that cannot be parsed * from the device tree by the drivers (example: function pointers) are * supplied. But it should be noted that this is a temporary mechanism and * at some point, the drivers should be capable of parsing all the platform * data from the device tree. */ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = { OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5_PA_UART0, "exynos4210-uart.0", NULL), OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5_PA_UART1, "exynos4210-uart.1", NULL), OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5_PA_UART2, "exynos4210-uart.2", NULL), OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5_PA_UART3, "exynos4210-uart.3", NULL), OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(0), "s3c2440-i2c.0", NULL), OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(1), "s3c2440-i2c.1", NULL), OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(2), "s3c2440-i2c.2", NULL), OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(3), "s3c2440-i2c.3", NULL), OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(4), "s3c2440-i2c.4", NULL), OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(5), "s3c2440-i2c.5", NULL), OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(6), "s3c2440-i2c.6", NULL), OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(7), "s3c2440-i2c.7", NULL), OF_DEV_AUXDATA("samsung,s3c2440-hdmiphy-i2c", EXYNOS5_PA_IIC(8), "s3c2440-hdmiphy-i2c", NULL), OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI0, "dw_mmc.0", NULL), OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI1, "dw_mmc.1", NULL), OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI2, "dw_mmc.2", NULL), OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI3, "dw_mmc.3", NULL), OF_DEV_AUXDATA("samsung,exynos4210-spi", EXYNOS5_PA_SPI0, "exynos4210-spi.0", NULL), OF_DEV_AUXDATA("samsung,exynos4210-spi", EXYNOS5_PA_SPI1, "exynos4210-spi.1", NULL), OF_DEV_AUXDATA("samsung,exynos4210-spi", EXYNOS5_PA_SPI2, "exynos4210-spi.2", NULL), OF_DEV_AUXDATA("samsung,exynos5-sata-ahci", 0x122F0000, "exynos5-sata", NULL), OF_DEV_AUXDATA("samsung,exynos5-sata-phy", 0x12170000, "exynos5-sata-phy", NULL), OF_DEV_AUXDATA("samsung,exynos5-sata-phy-i2c", 0x121D0000, "exynos5-sata-phy-i2c", NULL), OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA0, "dma-pl330.0", NULL), OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA1, "dma-pl330.1", NULL), OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_MDMA1, "dma-pl330.2", NULL), OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC0, "exynos-gsc.0", NULL), OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC1, "exynos-gsc.1", NULL), OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC2, "exynos-gsc.2", NULL), OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC3, "exynos-gsc.3", NULL), OF_DEV_AUXDATA("samsung,exynos5-hdmi", 0x14530000, "exynos5-hdmi", NULL), OF_DEV_AUXDATA("samsung,exynos5-mixer", 0x14450000, "exynos5-mixer", NULL), OF_DEV_AUXDATA("samsung,mfc-v6", 0x11000000, "s5p-mfc-v6", NULL), OF_DEV_AUXDATA("samsung,exynos5250-tmu", 0x10060000, "exynos-tmu", NULL), OF_DEV_AUXDATA("samsung,i2s-v5", 0x03830000, "samsung-i2s.0", NULL), OF_DEV_AUXDATA("samsung,i2s-v5", 0x12D60000, "samsung-i2s.1", NULL), OF_DEV_AUXDATA("samsung,i2s-v5", 0x12D70000, "samsung-i2s.2", NULL), OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11210000, "exynos-sysmmu.0", "mfc"), /* MFC_L */ OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11200000, "exynos-sysmmu.1", "mfc"), /* MFC_R */ OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x14650000, "exynos-sysmmu.2", NULL), /* TV */ OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11F20000, "exynos-sysmmu.3", "jpeg"), /* JPEG */ OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11D40000, "exynos-sysmmu.4", NULL), /* ROTATOR */ OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13E80000, "exynos-sysmmu.5", "gscl"), /* GSCL0 */ OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13E90000, "exynos-sysmmu.6", "gscl"), /* GSCL1 */ OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13EA0000, "exynos-sysmmu.7", "gscl"), /* GSCL2 */ OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13EB0000, "exynos-sysmmu.8", "gscl"), /* GSCL3 */ OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13260000, "exynos-sysmmu.9", NULL), /* FIMC-IS0 */ OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x132C0000, "exynos-sysmmu.10", NULL), /* FIMC-IS1 */ OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x14640000, "exynos-sysmmu.11", NULL), /* FIMD1 */ OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13C40000, "exynos-sysmmu.12", NULL), /* FIMC-LITE0 */ OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13C50000, "exynos-sysmmu.13", NULL), /* FIMC-LITE1 */ OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x10A60000, "exynos-sysmmu.14", NULL), /* G2D */ {}, }; static const struct of_dev_auxdata exynos5440_auxdata_lookup[] __initconst = { OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5440_PA_UART0, "exynos4210-uart.0", NULL), {}, }; static void __init exynos5_dt_map_io(void) { unsigned long root = of_get_flat_dt_root(); exynos_init_io(NULL, 0); if (of_flat_dt_is_compatible(root, "samsung,exynos5250")) s3c24xx_init_clocks(24000000); } static void __init exynos5_dt_machine_init(void) { struct device_node *i2c_np; const char *i2c_compat = "samsung,s3c2440-i2c"; unsigned int tmp; /* * Exynos5's legacy i2c controller and new high speed i2c * controller have muxed interrupt sources. By default the * interrupts for 4-channel HS-I2C controller are enabled. * If node for first four channels of legacy i2c controller * are available then re-configure the interrupts via the * system register. */ for_each_compatible_node(i2c_np, NULL, i2c_compat) { if (of_device_is_available(i2c_np)) { if (of_alias_get_id(i2c_np, "i2c") < 4) { tmp = readl(EXYNOS5_SYS_I2C_CFG); writel(tmp & ~(0x1 << of_alias_get_id(i2c_np, "i2c")), EXYNOS5_SYS_I2C_CFG); } } } if (of_machine_is_compatible("samsung,exynos5250")) of_platform_populate(NULL, of_default_bus_match_table, exynos5250_auxdata_lookup, NULL); else if (of_machine_is_compatible("samsung,exynos5440")) of_platform_populate(NULL, of_default_bus_match_table, exynos5440_auxdata_lookup, NULL); } static char const *exynos5_dt_compat[] __initdata = { "samsung,exynos5250", "samsung,exynos5440", NULL }; static void __init exynos5_reserve(void) { #ifdef CONFIG_S5P_DEV_MFC struct s5p_mfc_dt_meminfo mfc_mem; /* Reserve memory for MFC only if it's available */ mfc_mem.compatible = "samsung,mfc-v6"; if (of_scan_flat_dt(s5p_fdt_find_mfc_mem, &mfc_mem)) s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize, mfc_mem.loff, mfc_mem.lsize); #endif } DT_MACHINE_START(EXYNOS5_DT, "SAMSUNG EXYNOS5 (Flattened Device Tree)") /* Maintainer: Kukjin Kim */ .init_irq = exynos5_init_irq, .smp = smp_ops(exynos_smp_ops), .map_io = exynos5_dt_map_io, .init_machine = exynos5_dt_machine_init, .init_late = exynos_init_late, .init_time = exynos4_timer_init, .dt_compat = exynos5_dt_compat, .restart = exynos5_restart, .reserve = exynos5_reserve, MACHINE_END