| /* |
| * 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 <linux/of_platform.h> |
| #include <linux/of_fdt.h> |
| #include <linux/serial_core.h> |
| #include <linux/memblock.h> |
| #include <linux/io.h> |
| #include <linux/clocksource.h> |
| |
| #include <asm/mach/arch.h> |
| #include <mach/map.h> |
| #include <mach/regs-pmu.h> |
| |
| #include <plat/cpu.h> |
| #include <plat/regs-serial.h> |
| #include <plat/mfc.h> |
| |
| #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 */ |
| OF_DEV_AUXDATA("samsung,exynos5-dp", 0x145B0000, "exynos-dp", NULL), |
| {}, |
| }; |
| |
| 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) |
| { |
| exynos_init_io(NULL, 0); |
| } |
| |
| 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 <kgene.kim@samsung.com> */ |
| .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 = clocksource_of_init, |
| .dt_compat = exynos5_dt_compat, |
| .restart = exynos5_restart, |
| .reserve = exynos5_reserve, |
| MACHINE_END |