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 | * MPC8560ADS board specific routines |
| 3 | * |
Kumar Gala | 4c8d3d9 | 2005-11-13 16:06:30 -0800 | [diff] [blame] | 4 | * Maintainer: Kumar Gala <galak@kernel.crashing.org> |
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> |
| 29 | #include <linux/initrd.h> |
| 30 | #include <linux/module.h> |
| 31 | #include <linux/fsl_devices.h> |
Vitaly Bordug | 2ca2d5e | 2006-08-14 23:00:31 -0700 | [diff] [blame] | 32 | #include <linux/fs_enet_pd.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 <asm/cpm2.h> |
| 50 | #include <mm/mmu_decl.h> |
| 51 | |
| 52 | #include <syslib/cpm2_pic.h> |
| 53 | #include <syslib/ppc85xx_common.h> |
| 54 | #include <syslib/ppc85xx_setup.h> |
| 55 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | |
| 57 | /* ************************************************************************ |
| 58 | * |
| 59 | * Setup the architecture |
| 60 | * |
| 61 | */ |
Vitaly Bordug | 2ca2d5e | 2006-08-14 23:00:31 -0700 | [diff] [blame] | 62 | static void init_fcc_ioports(void) |
| 63 | { |
| 64 | struct immap *immap; |
| 65 | struct io_port *io; |
| 66 | u32 tempval; |
| 67 | |
| 68 | immap = cpm2_immr; |
| 69 | |
| 70 | io = &immap->im_ioport; |
| 71 | /* FCC2/3 are on the ports B/C. */ |
| 72 | tempval = in_be32(&io->iop_pdirb); |
| 73 | tempval &= ~PB2_DIRB0; |
| 74 | tempval |= PB2_DIRB1; |
| 75 | out_be32(&io->iop_pdirb, tempval); |
| 76 | |
| 77 | tempval = in_be32(&io->iop_psorb); |
| 78 | tempval &= ~PB2_PSORB0; |
| 79 | tempval |= PB2_PSORB1; |
| 80 | out_be32(&io->iop_psorb, tempval); |
| 81 | |
| 82 | tempval = in_be32(&io->iop_pparb); |
| 83 | tempval |= (PB2_DIRB0 | PB2_DIRB1); |
| 84 | out_be32(&io->iop_pparb, tempval); |
| 85 | |
| 86 | tempval = in_be32(&io->iop_pdirb); |
| 87 | tempval &= ~PB3_DIRB0; |
| 88 | tempval |= PB3_DIRB1; |
| 89 | out_be32(&io->iop_pdirb, tempval); |
| 90 | |
| 91 | tempval = in_be32(&io->iop_psorb); |
| 92 | tempval &= ~PB3_PSORB0; |
| 93 | tempval |= PB3_PSORB1; |
| 94 | out_be32(&io->iop_psorb, tempval); |
| 95 | |
| 96 | tempval = in_be32(&io->iop_pparb); |
| 97 | tempval |= (PB3_DIRB0 | PB3_DIRB1); |
| 98 | out_be32(&io->iop_pparb, tempval); |
| 99 | |
| 100 | tempval = in_be32(&io->iop_pdirc); |
| 101 | tempval |= PC3_DIRC1; |
| 102 | out_be32(&io->iop_pdirc, tempval); |
| 103 | |
| 104 | tempval = in_be32(&io->iop_pparc); |
| 105 | tempval |= PC3_DIRC1; |
| 106 | out_be32(&io->iop_pparc, tempval); |
| 107 | |
| 108 | /* Port C has clocks...... */ |
| 109 | tempval = in_be32(&io->iop_psorc); |
| 110 | tempval &= ~(CLK_TRX); |
| 111 | out_be32(&io->iop_psorc, tempval); |
| 112 | |
| 113 | tempval = in_be32(&io->iop_pdirc); |
| 114 | tempval &= ~(CLK_TRX); |
| 115 | out_be32(&io->iop_pdirc, tempval); |
| 116 | tempval = in_be32(&io->iop_pparc); |
| 117 | tempval |= (CLK_TRX); |
| 118 | out_be32(&io->iop_pparc, tempval); |
| 119 | |
| 120 | /* Configure Serial Interface clock routing. |
| 121 | * First, clear all FCC bits to zero, |
| 122 | * then set the ones we want. |
| 123 | */ |
| 124 | immap->im_cpmux.cmx_fcr &= ~(CPMUX_CLK_MASK); |
| 125 | immap->im_cpmux.cmx_fcr |= CPMUX_CLK_ROUTE; |
| 126 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | |
| 128 | static void __init |
| 129 | mpc8560ads_setup_arch(void) |
| 130 | { |
| 131 | bd_t *binfo = (bd_t *) __res; |
| 132 | unsigned int freq; |
| 133 | struct gianfar_platform_data *pdata; |
Andy Fleming | b37665e | 2005-10-28 17:46:27 -0700 | [diff] [blame] | 134 | struct gianfar_mdio_data *mdata; |
Vitaly Bordug | 2ca2d5e | 2006-08-14 23:00:31 -0700 | [diff] [blame] | 135 | struct fs_platform_info *fpi; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | |
| 137 | cpm2_reset(); |
| 138 | |
| 139 | /* get the core frequency */ |
| 140 | freq = binfo->bi_intfreq; |
| 141 | |
| 142 | if (ppc_md.progress) |
| 143 | ppc_md.progress("mpc8560ads_setup_arch()", 0); |
| 144 | |
| 145 | /* Set loops_per_jiffy to a half-way reasonable value, |
| 146 | for use until calibrate_delay gets called. */ |
| 147 | loops_per_jiffy = freq / HZ; |
| 148 | |
| 149 | #ifdef CONFIG_PCI |
| 150 | /* setup PCI host bridges */ |
| 151 | mpc85xx_setup_hose(); |
| 152 | #endif |
| 153 | |
Andy Fleming | b37665e | 2005-10-28 17:46:27 -0700 | [diff] [blame] | 154 | /* setup the board related info for the MDIO bus */ |
| 155 | mdata = (struct gianfar_mdio_data *) ppc_sys_get_pdata(MPC85xx_MDIO); |
| 156 | |
| 157 | mdata->irq[0] = MPC85xx_IRQ_EXT5; |
| 158 | mdata->irq[1] = MPC85xx_IRQ_EXT5; |
| 159 | mdata->irq[2] = -1; |
| 160 | mdata->irq[3] = MPC85xx_IRQ_EXT5; |
| 161 | mdata->irq[31] = -1; |
Andy Fleming | b37665e | 2005-10-28 17:46:27 -0700 | [diff] [blame] | 162 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | /* setup the board related information for the enet controllers */ |
| 164 | pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC1); |
Kumar Gala | 62aa751 | 2005-06-25 14:54:36 -0700 | [diff] [blame] | 165 | if (pdata) { |
| 166 | pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR; |
Kumar Gala | 7e78e5e | 2006-01-12 21:04:23 -0600 | [diff] [blame] | 167 | pdata->bus_id = 0; |
| 168 | pdata->phy_id = 0; |
Kumar Gala | 62aa751 | 2005-06-25 14:54:36 -0700 | [diff] [blame] | 169 | memcpy(pdata->mac_addr, binfo->bi_enetaddr, 6); |
| 170 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | |
| 172 | pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC2); |
Kumar Gala | 62aa751 | 2005-06-25 14:54:36 -0700 | [diff] [blame] | 173 | if (pdata) { |
| 174 | pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR; |
Kumar Gala | 7e78e5e | 2006-01-12 21:04:23 -0600 | [diff] [blame] | 175 | pdata->bus_id = 0; |
| 176 | pdata->phy_id = 1; |
Kumar Gala | 62aa751 | 2005-06-25 14:54:36 -0700 | [diff] [blame] | 177 | memcpy(pdata->mac_addr, binfo->bi_enet1addr, 6); |
| 178 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | |
Vitaly Bordug | 2ca2d5e | 2006-08-14 23:00:31 -0700 | [diff] [blame] | 180 | init_fcc_ioports(); |
| 181 | ppc_sys_device_remove(MPC85xx_CPM_FCC1); |
| 182 | |
| 183 | fpi = (struct fs_platform_info *) ppc_sys_get_pdata(MPC85xx_CPM_FCC2); |
| 184 | if (fpi) { |
| 185 | memcpy(fpi->macaddr, binfo->bi_enet2addr, 6); |
| 186 | fpi->bus_id = "0:02"; |
| 187 | fpi->phy_addr = 2; |
| 188 | fpi->dpram_offset = (u32)cpm2_immr->im_dprambase; |
| 189 | fpi->fcc_regs_c = (u32)&cpm2_immr->im_fcc_c[1]; |
| 190 | } |
| 191 | |
| 192 | fpi = (struct fs_platform_info *) ppc_sys_get_pdata(MPC85xx_CPM_FCC3); |
| 193 | if (fpi) { |
| 194 | memcpy(fpi->macaddr, binfo->bi_enet2addr, 6); |
| 195 | fpi->macaddr[5] += 1; |
| 196 | fpi->bus_id = "0:03"; |
| 197 | fpi->phy_addr = 3; |
| 198 | fpi->dpram_offset = (u32)cpm2_immr->im_dprambase; |
| 199 | fpi->fcc_regs_c = (u32)&cpm2_immr->im_fcc_c[2]; |
| 200 | } |
| 201 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | #ifdef CONFIG_BLK_DEV_INITRD |
| 203 | if (initrd_start) |
| 204 | ROOT_DEV = Root_RAM0; |
| 205 | else |
| 206 | #endif |
| 207 | #ifdef CONFIG_ROOT_NFS |
| 208 | ROOT_DEV = Root_NFS; |
| 209 | #else |
| 210 | ROOT_DEV = Root_HDA1; |
| 211 | #endif |
| 212 | } |
| 213 | |
Olaf Hering | 35a84c2 | 2006-10-07 22:08:26 +1000 | [diff] [blame^] | 214 | static irqreturn_t cpm2_cascade(int irq, void *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | { |
Olaf Hering | 35a84c2 | 2006-10-07 22:08:26 +1000 | [diff] [blame^] | 216 | while ((irq = cpm2_get_irq()) >= 0) |
| 217 | __do_IRQ(irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | return IRQ_HANDLED; |
| 219 | } |
| 220 | |
| 221 | static struct irqaction cpm2_irqaction = { |
| 222 | .handler = cpm2_cascade, |
Thomas Gleixner | bc59d28 | 2006-07-01 19:29:22 -0700 | [diff] [blame] | 223 | .flags = IRQF_DISABLED, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | .mask = CPU_MASK_NONE, |
| 225 | .name = "cpm2_cascade", |
| 226 | }; |
| 227 | |
| 228 | static void __init |
| 229 | mpc8560_ads_init_IRQ(void) |
| 230 | { |
| 231 | /* Setup OpenPIC */ |
| 232 | mpc85xx_ads_init_IRQ(); |
| 233 | |
| 234 | /* Setup CPM2 PIC */ |
| 235 | cpm2_init_IRQ(); |
| 236 | |
| 237 | setup_irq(MPC85xx_IRQ_CPM, &cpm2_irqaction); |
| 238 | |
| 239 | return; |
| 240 | } |
| 241 | |
| 242 | |
| 243 | |
| 244 | /* ************************************************************************ */ |
| 245 | void __init |
| 246 | platform_init(unsigned long r3, unsigned long r4, unsigned long r5, |
| 247 | unsigned long r6, unsigned long r7) |
| 248 | { |
| 249 | /* parse_bootinfo must always be called first */ |
| 250 | parse_bootinfo(find_bootinfo()); |
| 251 | |
| 252 | /* |
| 253 | * If we were passed in a board information, copy it into the |
| 254 | * residual data area. |
| 255 | */ |
| 256 | if (r3) { |
| 257 | memcpy((void *) __res, (void *) (r3 + KERNELBASE), |
| 258 | sizeof (bd_t)); |
| 259 | |
| 260 | } |
| 261 | #if defined(CONFIG_BLK_DEV_INITRD) |
| 262 | /* |
| 263 | * If the init RAM disk has been configured in, and there's a valid |
| 264 | * starting address for it, set it up. |
| 265 | */ |
| 266 | if (r4) { |
| 267 | initrd_start = r4 + KERNELBASE; |
| 268 | initrd_end = r5 + KERNELBASE; |
| 269 | } |
| 270 | #endif /* CONFIG_BLK_DEV_INITRD */ |
| 271 | |
| 272 | /* Copy the kernel command line arguments to a safe place. */ |
| 273 | |
| 274 | if (r6) { |
| 275 | *(char *) (r7 + KERNELBASE) = 0; |
| 276 | strcpy(cmd_line, (char *) (r6 + KERNELBASE)); |
| 277 | } |
| 278 | |
| 279 | identify_ppc_sys_by_id(mfspr(SPRN_SVR)); |
| 280 | |
| 281 | /* setup the PowerPC module struct */ |
| 282 | ppc_md.setup_arch = mpc8560ads_setup_arch; |
| 283 | ppc_md.show_cpuinfo = mpc85xx_ads_show_cpuinfo; |
| 284 | |
| 285 | ppc_md.init_IRQ = mpc8560_ads_init_IRQ; |
| 286 | ppc_md.get_irq = openpic_get_irq; |
| 287 | |
| 288 | ppc_md.restart = mpc85xx_restart; |
| 289 | ppc_md.power_off = mpc85xx_power_off; |
| 290 | ppc_md.halt = mpc85xx_halt; |
| 291 | |
| 292 | ppc_md.find_end_of_memory = mpc85xx_find_end_of_memory; |
| 293 | |
| 294 | ppc_md.time_init = NULL; |
| 295 | ppc_md.set_rtc_time = NULL; |
| 296 | ppc_md.get_rtc_time = NULL; |
| 297 | ppc_md.calibrate_decr = mpc85xx_calibrate_decr; |
| 298 | |
| 299 | if (ppc_md.progress) |
| 300 | ppc_md.progress("mpc8560ads_init(): exit", 0); |
| 301 | |
| 302 | return; |
| 303 | } |