1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Renesas Technology Corp. SH7786 Urquell Support. 4 * 5 * Copyright (C) 2008 Kuninori Morimoto <morimoto.kuninori@renesas.com> 6 * Copyright (C) 2009, 2010 Paul Mundt 7 * 8 * Based on board-sh7785lcr.c 9 * Copyright (C) 2008 Yoshihiro Shimoda 10 */ 11 #include <linux/init.h> 12 #include <linux/platform_device.h> 13 #include <linux/fb.h> 14 #include <linux/smc91x.h> 15 #include <linux/mtd/physmap.h> 16 #include <linux/delay.h> 17 #include <linux/gpio.h> 18 #include <linux/irq.h> 19 #include <linux/clk.h> 20 #include <linux/sh_intc.h> 21 #include <mach/urquell.h> 22 #include <cpu/sh7786.h> 23 #include <asm/heartbeat.h> 24 #include <asm/sizes.h> 25 #include <asm/smp-ops.h> 26 27 /* 28 * bit 1234 5678 29 *---------------------------- 30 * SW1 0101 0010 -> Pck 33MHz version 31 * (1101 0010) Pck 66MHz version 32 * SW2 0x1x xxxx -> little endian 33 * 29bit mode 34 * SW47 0001 1000 -> CS0 : on-board flash 35 * CS1 : SRAM, registers, LAN, PCMCIA 36 * 38400 bps for SCIF1 37 * 38 * Address 39 * 0x00000000 - 0x04000000 (CS0) Nor Flash 40 * 0x04000000 - 0x04200000 (CS1) SRAM 41 * 0x05000000 - 0x05800000 (CS1) on board register 42 * 0x05800000 - 0x06000000 (CS1) LAN91C111 43 * 0x06000000 - 0x06400000 (CS1) PCMCIA 44 * 0x08000000 - 0x10000000 (CS2-CS3) DDR3 45 * 0x10000000 - 0x14000000 (CS4) PCIe 46 * 0x14000000 - 0x14800000 (CS5) Core0 LRAM/URAM 47 * 0x14800000 - 0x15000000 (CS5) Core1 LRAM/URAM 48 * 0x18000000 - 0x1C000000 (CS6) ATA/NAND-Flash 49 * 0x1C000000 - (CS7) SH7786 Control register 50 */ 51 52 /* HeartBeat */ 53 static struct resource heartbeat_resource = { 54 .start = BOARDREG(SLEDR), 55 .end = BOARDREG(SLEDR), 56 .flags = IORESOURCE_MEM | IORESOURCE_MEM_16BIT, 57 }; 58 59 static struct platform_device heartbeat_device = { 60 .name = "heartbeat", 61 .id = -1, 62 .num_resources = 1, 63 .resource = &heartbeat_resource, 64 }; 65 66 /* LAN91C111 */ 67 static struct smc91x_platdata smc91x_info = { 68 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT, 69 }; 70 71 static struct resource smc91x_eth_resources[] = { 72 [0] = { 73 .name = "SMC91C111" , 74 .start = 0x05800300, 75 .end = 0x0580030f, 76 .flags = IORESOURCE_MEM, 77 }, 78 [1] = { 79 .start = evt2irq(0x360), 80 .flags = IORESOURCE_IRQ, 81 }, 82 }; 83 84 static struct platform_device smc91x_eth_device = { 85 .name = "smc91x", 86 .num_resources = ARRAY_SIZE(smc91x_eth_resources), 87 .resource = smc91x_eth_resources, 88 .dev = { 89 .platform_data = &smc91x_info, 90 }, 91 }; 92 93 /* Nor Flash */ 94 static struct mtd_partition nor_flash_partitions[] = { 95 { 96 .name = "loader", 97 .offset = 0x00000000, 98 .size = SZ_512K, 99 .mask_flags = MTD_WRITEABLE, /* Read-only */ 100 }, 101 { 102 .name = "bootenv", 103 .offset = MTDPART_OFS_APPEND, 104 .size = SZ_512K, 105 .mask_flags = MTD_WRITEABLE, /* Read-only */ 106 }, 107 { 108 .name = "kernel", 109 .offset = MTDPART_OFS_APPEND, 110 .size = SZ_4M, 111 }, 112 { 113 .name = "data", 114 .offset = MTDPART_OFS_APPEND, 115 .size = MTDPART_SIZ_FULL, 116 }, 117 }; 118 119 static struct physmap_flash_data nor_flash_data = { 120 .width = 2, 121 .parts = nor_flash_partitions, 122 .nr_parts = ARRAY_SIZE(nor_flash_partitions), 123 }; 124 125 static struct resource nor_flash_resources[] = { 126 [0] = { 127 .start = NOR_FLASH_ADDR, 128 .end = NOR_FLASH_ADDR + NOR_FLASH_SIZE - 1, 129 .flags = IORESOURCE_MEM, 130 } 131 }; 132 133 static struct platform_device nor_flash_device = { 134 .name = "physmap-flash", 135 .dev = { 136 .platform_data = &nor_flash_data, 137 }, 138 .num_resources = ARRAY_SIZE(nor_flash_resources), 139 .resource = nor_flash_resources, 140 }; 141 142 static struct platform_device *urquell_devices[] __initdata = { 143 &heartbeat_device, 144 &smc91x_eth_device, 145 &nor_flash_device, 146 }; 147 148 static int __init urquell_devices_setup(void) 149 { 150 /* USB */ 151 gpio_request(GPIO_FN_USB_OVC0, NULL); 152 gpio_request(GPIO_FN_USB_PENC0, NULL); 153 154 /* enable LAN */ 155 __raw_writew(__raw_readw(UBOARDREG(IRL2MSKR)) & ~0x00000001, 156 UBOARDREG(IRL2MSKR)); 157 158 return platform_add_devices(urquell_devices, 159 ARRAY_SIZE(urquell_devices)); 160 } 161 device_initcall(urquell_devices_setup); 162 163 static void urquell_power_off(void) 164 { 165 __raw_writew(0xa5a5, UBOARDREG(SRSTR)); 166 } 167 168 static void __init urquell_init_irq(void) 169 { 170 plat_irq_setup_pins(IRQ_MODE_IRL3210_MASK); 171 } 172 173 static int urquell_mode_pins(void) 174 { 175 return __raw_readw(UBOARDREG(MDSWMR)); 176 } 177 178 static int urquell_clk_init(void) 179 { 180 struct clk *clk; 181 int ret; 182 183 /* 184 * Only handle the EXTAL case, anyone interfacing a crystal 185 * resonator will need to provide their own input clock. 186 */ 187 if (test_mode_pin(MODE_PIN9)) 188 return -EINVAL; 189 190 clk = clk_get(NULL, "extal"); 191 if (IS_ERR(clk)) 192 return PTR_ERR(clk); 193 ret = clk_set_rate(clk, 33333333); 194 clk_put(clk); 195 196 return ret; 197 } 198 199 /* Initialize the board */ 200 static void __init urquell_setup(char **cmdline_p) 201 { 202 printk(KERN_INFO "Renesas Technology Corp. Urquell support.\n"); 203 204 pm_power_off = urquell_power_off; 205 206 register_smp_ops(&shx3_smp_ops); 207 } 208 209 /* 210 * The Machine Vector 211 */ 212 static struct sh_machine_vector mv_urquell __initmv = { 213 .mv_name = "Urquell", 214 .mv_setup = urquell_setup, 215 .mv_init_irq = urquell_init_irq, 216 .mv_mode_pins = urquell_mode_pins, 217 .mv_clk_init = urquell_clk_init, 218 }; 219