1 /* 2 * arch/arm/mach-spear13xx/spear1310.c 3 * 4 * SPEAr1310 machine source file 5 * 6 * Copyright (C) 2012 ST Microelectronics 7 * Viresh Kumar <viresh.linux@gmail.com> 8 * 9 * This file is licensed under the terms of the GNU General Public 10 * License version 2. This program is licensed "as is" without any 11 * warranty of any kind, whether express or implied. 12 */ 13 14 #define pr_fmt(fmt) "SPEAr1310: " fmt 15 16 #include <linux/amba/pl022.h> 17 #include <linux/irqchip.h> 18 #include <linux/of_platform.h> 19 #include <linux/pata_arasan_cf_data.h> 20 #include <asm/mach/arch.h> 21 #include <asm/mach/map.h> 22 #include <mach/generic.h> 23 #include <mach/spear.h> 24 25 /* Base addresses */ 26 #define SPEAR1310_SSP1_BASE UL(0x5D400000) 27 #define SPEAR1310_SATA0_BASE UL(0xB1000000) 28 #define SPEAR1310_SATA1_BASE UL(0xB1800000) 29 #define SPEAR1310_SATA2_BASE UL(0xB4000000) 30 31 #define SPEAR1310_RAS_GRP1_BASE UL(0xD8000000) 32 #define VA_SPEAR1310_RAS_GRP1_BASE UL(0xFA000000) 33 #define SPEAR1310_RAS_BASE UL(0xD8400000) 34 #define VA_SPEAR1310_RAS_BASE IOMEM(UL(0xFA400000)) 35 36 static struct arasan_cf_pdata cf_pdata = { 37 .cf_if_clk = CF_IF_CLK_166M, 38 .quirk = CF_BROKEN_UDMA, 39 .dma_priv = &cf_dma_priv, 40 }; 41 42 /* ssp device registration */ 43 static struct pl022_ssp_controller ssp1_plat_data = { 44 .enable_dma = 0, 45 }; 46 47 /* Add SPEAr1310 auxdata to pass platform data */ 48 static struct of_dev_auxdata spear1310_auxdata_lookup[] __initdata = { 49 OF_DEV_AUXDATA("arasan,cf-spear1340", MCIF_CF_BASE, NULL, &cf_pdata), 50 OF_DEV_AUXDATA("snps,dma-spear1340", DMAC0_BASE, NULL, &dmac_plat_data), 51 OF_DEV_AUXDATA("snps,dma-spear1340", DMAC1_BASE, NULL, &dmac_plat_data), 52 OF_DEV_AUXDATA("arm,pl022", SSP_BASE, NULL, &pl022_plat_data), 53 54 OF_DEV_AUXDATA("arm,pl022", SPEAR1310_SSP1_BASE, NULL, &ssp1_plat_data), 55 {} 56 }; 57 58 static void __init spear1310_dt_init(void) 59 { 60 of_platform_populate(NULL, of_default_bus_match_table, 61 spear1310_auxdata_lookup, NULL); 62 } 63 64 static const char * const spear1310_dt_board_compat[] = { 65 "st,spear1310", 66 "st,spear1310-evb", 67 NULL, 68 }; 69 70 /* 71 * Following will create 16MB static virtual/physical mappings 72 * PHYSICAL VIRTUAL 73 * 0xD8000000 0xFA000000 74 */ 75 struct map_desc spear1310_io_desc[] __initdata = { 76 { 77 .virtual = VA_SPEAR1310_RAS_GRP1_BASE, 78 .pfn = __phys_to_pfn(SPEAR1310_RAS_GRP1_BASE), 79 .length = SZ_16M, 80 .type = MT_DEVICE 81 }, 82 }; 83 84 static void __init spear1310_map_io(void) 85 { 86 iotable_init(spear1310_io_desc, ARRAY_SIZE(spear1310_io_desc)); 87 spear13xx_map_io(); 88 } 89 90 DT_MACHINE_START(SPEAR1310_DT, "ST SPEAr1310 SoC with Flattened Device Tree") 91 .smp = smp_ops(spear13xx_smp_ops), 92 .map_io = spear1310_map_io, 93 .init_irq = irqchip_init, 94 .init_time = spear13xx_timer_init, 95 .init_machine = spear1310_dt_init, 96 .restart = spear_restart, 97 .dt_compat = spear1310_dt_board_compat, 98 MACHINE_END 99