1 /* 2 * r7s72100 processor support 3 * 4 * Copyright (C) 2013 Renesas Solutions Corp. 5 * Copyright (C) 2013 Magnus Damm 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; version 2 of the License. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 21 #include <linux/irq.h> 22 #include <linux/kernel.h> 23 #include <linux/of_platform.h> 24 #include <linux/serial_sci.h> 25 #include <linux/sh_timer.h> 26 #include <mach/common.h> 27 #include <mach/irqs.h> 28 #include <mach/r7s72100.h> 29 #include <asm/mach/arch.h> 30 31 #define R7S72100_SCIF(index, baseaddr, irq) \ 32 static const struct plat_sci_port scif##index##_platform_data = { \ 33 .type = PORT_SCIF, \ 34 .regtype = SCIx_SH2_SCIF_FIFODATA_REGTYPE, \ 35 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, \ 36 .scscr = SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE | \ 37 SCSCR_REIE, \ 38 }; \ 39 \ 40 static struct resource scif##index##_resources[] = { \ 41 DEFINE_RES_MEM(baseaddr, 0x100), \ 42 DEFINE_RES_IRQ(irq + 1), \ 43 DEFINE_RES_IRQ(irq + 2), \ 44 DEFINE_RES_IRQ(irq + 3), \ 45 DEFINE_RES_IRQ(irq), \ 46 } \ 47 48 R7S72100_SCIF(0, 0xe8007000, gic_iid(221)); 49 R7S72100_SCIF(1, 0xe8007800, gic_iid(225)); 50 R7S72100_SCIF(2, 0xe8008000, gic_iid(229)); 51 R7S72100_SCIF(3, 0xe8008800, gic_iid(233)); 52 R7S72100_SCIF(4, 0xe8009000, gic_iid(237)); 53 R7S72100_SCIF(5, 0xe8009800, gic_iid(241)); 54 R7S72100_SCIF(6, 0xe800a000, gic_iid(245)); 55 R7S72100_SCIF(7, 0xe800a800, gic_iid(249)); 56 57 #define r7s72100_register_scif(index) \ 58 platform_device_register_resndata(&platform_bus, "sh-sci", index, \ 59 scif##index##_resources, \ 60 ARRAY_SIZE(scif##index##_resources), \ 61 &scif##index##_platform_data, \ 62 sizeof(scif##index##_platform_data)) 63 64 65 static struct resource mtu2_resources[] __initdata = { 66 DEFINE_RES_MEM(0xfcff0000, 0x400), 67 DEFINE_RES_IRQ_NAMED(gic_iid(139), "tgi0a"), 68 }; 69 70 #define r7s72100_register_mtu2() \ 71 platform_device_register_resndata(&platform_bus, "sh-mtu2", \ 72 -1, mtu2_resources, \ 73 ARRAY_SIZE(mtu2_resources), \ 74 NULL, 0) 75 76 void __init r7s72100_add_dt_devices(void) 77 { 78 r7s72100_register_scif(0); 79 r7s72100_register_scif(1); 80 r7s72100_register_scif(2); 81 r7s72100_register_scif(3); 82 r7s72100_register_scif(4); 83 r7s72100_register_scif(5); 84 r7s72100_register_scif(6); 85 r7s72100_register_scif(7); 86 r7s72100_register_mtu2(); 87 } 88 89 void __init r7s72100_init_early(void) 90 { 91 shmobile_setup_delay(400, 1, 3); /* Cortex-A9 @ 400MHz */ 92 } 93 94 #ifdef CONFIG_USE_OF 95 static const char *r7s72100_boards_compat_dt[] __initdata = { 96 "renesas,r7s72100", 97 NULL, 98 }; 99 100 DT_MACHINE_START(R7S72100_DT, "Generic R7S72100 (Flattened Device Tree)") 101 .init_early = r7s72100_init_early, 102 .dt_compat = r7s72100_boards_compat_dt, 103 MACHINE_END 104 #endif /* CONFIG_USE_OF */ 105