Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * Wind River SBC8560 board specific routines |
| 3 | * |
Kumar Gala | 4c8d3d9 | 2005-11-13 16:06:30 -0800 | [diff] [blame] | 4 | * Maintainer: Kumar Gala |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * |
| 6 | * Copyright 2004 Freescale Semiconductor Inc. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of the GNU General Public License as published by the |
| 10 | * Free Software Foundation; either version 2 of the License, or (at your |
| 11 | * option) any later version. |
| 12 | */ |
| 13 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | #include <linux/stddef.h> |
| 15 | #include <linux/kernel.h> |
| 16 | #include <linux/init.h> |
| 17 | #include <linux/errno.h> |
| 18 | #include <linux/reboot.h> |
| 19 | #include <linux/pci.h> |
| 20 | #include <linux/kdev_t.h> |
| 21 | #include <linux/major.h> |
| 22 | #include <linux/console.h> |
| 23 | #include <linux/delay.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | #include <linux/seq_file.h> |
| 25 | #include <linux/root_dev.h> |
| 26 | #include <linux/serial.h> |
| 27 | #include <linux/tty.h> /* for linux/serial_core.h */ |
| 28 | #include <linux/serial_core.h> |
Yinghai Lu | b187f18 | 2007-07-18 00:49:10 -0700 | [diff] [blame] | 29 | #include <linux/serial_8250.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include <linux/initrd.h> |
| 31 | #include <linux/module.h> |
| 32 | #include <linux/fsl_devices.h> |
| 33 | |
| 34 | #include <asm/system.h> |
| 35 | #include <asm/pgtable.h> |
| 36 | #include <asm/page.h> |
| 37 | #include <asm/atomic.h> |
| 38 | #include <asm/time.h> |
| 39 | #include <asm/io.h> |
| 40 | #include <asm/machdep.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | #include <asm/open_pic.h> |
| 42 | #include <asm/bootinfo.h> |
| 43 | #include <asm/pci-bridge.h> |
| 44 | #include <asm/mpc85xx.h> |
| 45 | #include <asm/irq.h> |
| 46 | #include <asm/immap_85xx.h> |
| 47 | #include <asm/kgdb.h> |
| 48 | #include <asm/ppc_sys.h> |
| 49 | #include <mm/mmu_decl.h> |
| 50 | |
| 51 | #include <syslib/ppc85xx_common.h> |
| 52 | #include <syslib/ppc85xx_setup.h> |
| 53 | |
| 54 | #ifdef CONFIG_SERIAL_8250 |
| 55 | static void __init |
| 56 | sbc8560_early_serial_map(void) |
| 57 | { |
| 58 | struct uart_port uart_req; |
| 59 | |
| 60 | /* Setup serial port access */ |
| 61 | memset(&uart_req, 0, sizeof (uart_req)); |
| 62 | uart_req.irq = MPC85xx_IRQ_EXT9; |
| 63 | uart_req.flags = STD_COM_FLAGS; |
| 64 | uart_req.uartclk = BASE_BAUD * 16; |
Russell King | 9b4a161 | 2006-02-05 10:48:10 +0000 | [diff] [blame] | 65 | uart_req.iotype = UPIO_MEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | uart_req.mapbase = UARTA_ADDR; |
| 67 | uart_req.membase = ioremap(uart_req.mapbase, MPC85xx_UART0_SIZE); |
| 68 | uart_req.type = PORT_16650; |
| 69 | |
| 70 | #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB) |
| 71 | gen550_init(0, &uart_req); |
| 72 | #endif |
| 73 | |
| 74 | if (early_serial_setup(&uart_req) != 0) |
| 75 | printk("Early serial init of port 0 failed\n"); |
| 76 | |
| 77 | /* Assume early_serial_setup() doesn't modify uart_req */ |
| 78 | uart_req.line = 1; |
| 79 | uart_req.mapbase = UARTB_ADDR; |
| 80 | uart_req.membase = ioremap(uart_req.mapbase, MPC85xx_UART1_SIZE); |
| 81 | uart_req.irq = MPC85xx_IRQ_EXT10; |
| 82 | |
| 83 | #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB) |
| 84 | gen550_init(1, &uart_req); |
| 85 | #endif |
| 86 | |
| 87 | if (early_serial_setup(&uart_req) != 0) |
| 88 | printk("Early serial init of port 1 failed\n"); |
| 89 | } |
| 90 | #endif |
| 91 | |
| 92 | /* ************************************************************************ |
| 93 | * |
| 94 | * Setup the architecture |
| 95 | * |
| 96 | */ |
| 97 | static void __init |
| 98 | sbc8560_setup_arch(void) |
| 99 | { |
| 100 | bd_t *binfo = (bd_t *) __res; |
| 101 | unsigned int freq; |
| 102 | struct gianfar_platform_data *pdata; |
Andy Fleming | b37665e | 2005-10-28 17:46:27 -0700 | [diff] [blame] | 103 | struct gianfar_mdio_data *mdata; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | |
| 105 | /* get the core frequency */ |
| 106 | freq = binfo->bi_intfreq; |
| 107 | |
| 108 | if (ppc_md.progress) |
| 109 | ppc_md.progress("sbc8560_setup_arch()", 0); |
| 110 | |
| 111 | /* Set loops_per_jiffy to a half-way reasonable value, |
| 112 | for use until calibrate_delay gets called. */ |
| 113 | loops_per_jiffy = freq / HZ; |
| 114 | |
| 115 | #ifdef CONFIG_PCI |
| 116 | /* setup PCI host bridges */ |
| 117 | mpc85xx_setup_hose(); |
| 118 | #endif |
| 119 | #ifdef CONFIG_SERIAL_8250 |
| 120 | sbc8560_early_serial_map(); |
| 121 | #endif |
| 122 | #ifdef CONFIG_SERIAL_TEXT_DEBUG |
| 123 | /* Invalidate the entry we stole earlier the serial ports |
| 124 | * should be properly mapped */ |
Kumar Gala | 5be061e | 2005-06-21 17:15:26 -0700 | [diff] [blame] | 125 | invalidate_tlbcam_entry(num_tlbcam_entries - 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | #endif |
| 127 | |
Andy Fleming | b37665e | 2005-10-28 17:46:27 -0700 | [diff] [blame] | 128 | /* setup the board related info for the MDIO bus */ |
| 129 | mdata = (struct gianfar_mdio_data *) ppc_sys_get_pdata(MPC85xx_MDIO); |
| 130 | |
| 131 | mdata->irq[25] = MPC85xx_IRQ_EXT6; |
| 132 | mdata->irq[26] = MPC85xx_IRQ_EXT7; |
Andy Fleming | a9b1497 | 2006-10-19 19:52:26 -0500 | [diff] [blame] | 133 | mdata->irq[31] = PHY_POLL; |
Andy Fleming | b37665e | 2005-10-28 17:46:27 -0700 | [diff] [blame] | 134 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | /* setup the board related information for the enet controllers */ |
| 136 | pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC1); |
Kumar Gala | 62aa751 | 2005-06-25 14:54:36 -0700 | [diff] [blame] | 137 | if (pdata) { |
| 138 | pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR; |
Kumar Gala | 7e78e5e | 2006-01-12 21:04:23 -0600 | [diff] [blame] | 139 | pdata->bus_id = 0; |
| 140 | pdata->phy_id = 25; |
Kumar Gala | 62aa751 | 2005-06-25 14:54:36 -0700 | [diff] [blame] | 141 | memcpy(pdata->mac_addr, binfo->bi_enetaddr, 6); |
| 142 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | |
| 144 | pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC2); |
Kumar Gala | 62aa751 | 2005-06-25 14:54:36 -0700 | [diff] [blame] | 145 | if (pdata) { |
| 146 | pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR; |
Kumar Gala | 7e78e5e | 2006-01-12 21:04:23 -0600 | [diff] [blame] | 147 | pdata->bus_id = 0; |
| 148 | pdata->phy_id = 26; |
Kumar Gala | 62aa751 | 2005-06-25 14:54:36 -0700 | [diff] [blame] | 149 | memcpy(pdata->mac_addr, binfo->bi_enet1addr, 6); |
| 150 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | |
| 152 | #ifdef CONFIG_BLK_DEV_INITRD |
| 153 | if (initrd_start) |
| 154 | ROOT_DEV = Root_RAM0; |
| 155 | else |
| 156 | #endif |
| 157 | #ifdef CONFIG_ROOT_NFS |
| 158 | ROOT_DEV = Root_NFS; |
| 159 | #else |
| 160 | ROOT_DEV = Root_HDA1; |
| 161 | #endif |
| 162 | } |
| 163 | |
| 164 | /* ************************************************************************ */ |
| 165 | void __init |
| 166 | platform_init(unsigned long r3, unsigned long r4, unsigned long r5, |
| 167 | unsigned long r6, unsigned long r7) |
| 168 | { |
| 169 | /* parse_bootinfo must always be called first */ |
| 170 | parse_bootinfo(find_bootinfo()); |
| 171 | |
| 172 | /* |
| 173 | * If we were passed in a board information, copy it into the |
| 174 | * residual data area. |
| 175 | */ |
| 176 | if (r3) { |
| 177 | memcpy((void *) __res, (void *) (r3 + KERNELBASE), |
| 178 | sizeof (bd_t)); |
| 179 | } |
| 180 | |
| 181 | #ifdef CONFIG_SERIAL_TEXT_DEBUG |
| 182 | /* Use the last TLB entry to map CCSRBAR to allow access to DUART regs */ |
Kumar Gala | 5be061e | 2005-06-21 17:15:26 -0700 | [diff] [blame] | 183 | settlbcam(num_tlbcam_entries - 1, UARTA_ADDR, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | UARTA_ADDR, 0x1000, _PAGE_IO, 0); |
| 185 | #endif |
| 186 | |
| 187 | #if defined(CONFIG_BLK_DEV_INITRD) |
| 188 | /* |
| 189 | * If the init RAM disk has been configured in, and there's a valid |
| 190 | * starting address for it, set it up. |
| 191 | */ |
| 192 | if (r4) { |
| 193 | initrd_start = r4 + KERNELBASE; |
| 194 | initrd_end = r5 + KERNELBASE; |
| 195 | } |
| 196 | #endif /* CONFIG_BLK_DEV_INITRD */ |
| 197 | |
| 198 | /* Copy the kernel command line arguments to a safe place. */ |
| 199 | |
| 200 | if (r6) { |
| 201 | *(char *) (r7 + KERNELBASE) = 0; |
| 202 | strcpy(cmd_line, (char *) (r6 + KERNELBASE)); |
| 203 | } |
| 204 | |
| 205 | identify_ppc_sys_by_id(mfspr(SPRN_SVR)); |
| 206 | |
| 207 | /* setup the PowerPC module struct */ |
| 208 | ppc_md.setup_arch = sbc8560_setup_arch; |
| 209 | ppc_md.show_cpuinfo = sbc8560_show_cpuinfo; |
| 210 | |
| 211 | ppc_md.init_IRQ = sbc8560_init_IRQ; |
| 212 | ppc_md.get_irq = openpic_get_irq; |
| 213 | |
| 214 | ppc_md.restart = mpc85xx_restart; |
| 215 | ppc_md.power_off = mpc85xx_power_off; |
| 216 | ppc_md.halt = mpc85xx_halt; |
| 217 | |
| 218 | ppc_md.find_end_of_memory = mpc85xx_find_end_of_memory; |
| 219 | |
| 220 | ppc_md.time_init = NULL; |
| 221 | ppc_md.set_rtc_time = NULL; |
| 222 | ppc_md.get_rtc_time = NULL; |
| 223 | ppc_md.calibrate_decr = mpc85xx_calibrate_decr; |
| 224 | |
| 225 | #if defined(CONFIG_SERIAL_8250) && defined(CONFIG_SERIAL_TEXT_DEBUG) |
| 226 | ppc_md.progress = gen550_progress; |
| 227 | #endif /* CONFIG_SERIAL_8250 && CONFIG_SERIAL_TEXT_DEBUG */ |
Kumar Gala | 252fcae | 2005-05-28 15:52:06 -0700 | [diff] [blame] | 228 | #if defined(CONFIG_SERIAL_8250) && defined(CONFIG_KGDB) |
| 229 | ppc_md.early_serial_map = sbc8560_early_serial_map; |
| 230 | #endif /* CONFIG_SERIAL_8250 && CONFIG_KGDB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | |
| 232 | if (ppc_md.progress) |
| 233 | ppc_md.progress("sbc8560_init(): exit", 0); |
| 234 | } |