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 "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 34 static struct arasan_cf_pdata cf_pdata = { 35 .cf_if_clk = CF_IF_CLK_166M, 36 .quirk = CF_BROKEN_UDMA, 37 .dma_priv = &cf_dma_priv, 38 }; 39 40 /* ssp device registration */ 41 static struct pl022_ssp_controller ssp1_plat_data = { 42 .enable_dma = 0, 43 }; 44 45 /* Add SPEAr1310 auxdata to pass platform data */ 46 static struct of_dev_auxdata spear1310_auxdata_lookup[] __initdata = { 47 OF_DEV_AUXDATA("arasan,cf-spear1340", MCIF_CF_BASE, NULL, &cf_pdata), 48 OF_DEV_AUXDATA("snps,dma-spear1340", DMAC0_BASE, NULL, &dmac_plat_data), 49 OF_DEV_AUXDATA("snps,dma-spear1340", DMAC1_BASE, NULL, &dmac_plat_data), 50 OF_DEV_AUXDATA("arm,pl022", SSP_BASE, NULL, &pl022_plat_data), 51 52 OF_DEV_AUXDATA("arm,pl022", SPEAR1310_SSP1_BASE, NULL, &ssp1_plat_data), 53 {} 54 }; 55 56 static void __init spear1310_dt_init(void) 57 { 58 of_platform_populate(NULL, of_default_bus_match_table, 59 spear1310_auxdata_lookup, NULL); 60 } 61 62 static const char * const spear1310_dt_board_compat[] = { 63 "st,spear1310", 64 "st,spear1310-evb", 65 NULL, 66 }; 67 68 /* 69 * Following will create 16MB static virtual/physical mappings 70 * PHYSICAL VIRTUAL 71 * 0xD8000000 0xFA000000 72 */ 73 struct map_desc spear1310_io_desc[] __initdata = { 74 { 75 .virtual = VA_SPEAR1310_RAS_GRP1_BASE, 76 .pfn = __phys_to_pfn(SPEAR1310_RAS_GRP1_BASE), 77 .length = SZ_16M, 78 .type = MT_DEVICE 79 }, 80 }; 81 82 static void __init spear1310_map_io(void) 83 { 84 iotable_init(spear1310_io_desc, ARRAY_SIZE(spear1310_io_desc)); 85 spear13xx_map_io(); 86 } 87 88 DT_MACHINE_START(SPEAR1310_DT, "ST SPEAr1310 SoC with Flattened Device Tree") 89 .smp = smp_ops(spear13xx_smp_ops), 90 .map_io = spear1310_map_io, 91 .init_irq = irqchip_init, 92 .init_time = spear13xx_timer_init, 93 .init_machine = spear1310_dt_init, 94 .restart = spear_restart, 95 .dt_compat = spear1310_dt_board_compat, 96 MACHINE_END 97