2 * MPC8560ADS board specific routines
4 * Maintainer: Kumar Gala <galak@kernel.crashing.org>
6 * Copyright 2004 Freescale Semiconductor Inc.
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.
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>
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>
33 #include <asm/system.h>
34 #include <asm/pgtable.h>
36 #include <asm/atomic.h>
39 #include <asm/machdep.h>
40 #include <asm/open_pic.h>
41 #include <asm/bootinfo.h>
42 #include <asm/pci-bridge.h>
43 #include <asm/mpc85xx.h>
45 #include <asm/immap_85xx.h>
47 #include <asm/ppc_sys.h>
49 #include <mm/mmu_decl.h>
51 #include <syslib/cpm2_pic.h>
52 #include <syslib/ppc85xx_common.h>
53 #include <syslib/ppc85xx_setup.h>
56 /* ************************************************************************
58 * Setup the architecture
63 mpc8560ads_setup_arch(void)
65 bd_t *binfo = (bd_t *) __res;
67 struct gianfar_platform_data *pdata;
68 struct gianfar_mdio_data *mdata;
72 /* get the core frequency */
73 freq = binfo->bi_intfreq;
76 ppc_md.progress("mpc8560ads_setup_arch()", 0);
78 /* Set loops_per_jiffy to a half-way reasonable value,
79 for use until calibrate_delay gets called. */
80 loops_per_jiffy = freq / HZ;
83 /* setup PCI host bridges */
87 /* setup the board related info for the MDIO bus */
88 mdata = (struct gianfar_mdio_data *) ppc_sys_get_pdata(MPC85xx_MDIO);
90 mdata->irq[0] = MPC85xx_IRQ_EXT5;
91 mdata->irq[1] = MPC85xx_IRQ_EXT5;
93 mdata->irq[3] = MPC85xx_IRQ_EXT5;
96 /* setup the board related information for the enet controllers */
97 pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC1);
99 pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
102 memcpy(pdata->mac_addr, binfo->bi_enetaddr, 6);
105 pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC2);
107 pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
110 memcpy(pdata->mac_addr, binfo->bi_enet1addr, 6);
113 #ifdef CONFIG_BLK_DEV_INITRD
115 ROOT_DEV = Root_RAM0;
118 #ifdef CONFIG_ROOT_NFS
121 ROOT_DEV = Root_HDA1;
125 static irqreturn_t cpm2_cascade(int irq, void *dev_id, struct pt_regs *regs)
127 while ((irq = cpm2_get_irq(regs)) >= 0)
132 static struct irqaction cpm2_irqaction = {
133 .handler = cpm2_cascade,
134 .flags = SA_INTERRUPT,
135 .mask = CPU_MASK_NONE,
136 .name = "cpm2_cascade",
140 mpc8560_ads_init_IRQ(void)
143 mpc85xx_ads_init_IRQ();
148 setup_irq(MPC85xx_IRQ_CPM, &cpm2_irqaction);
155 /* ************************************************************************ */
157 platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
158 unsigned long r6, unsigned long r7)
160 /* parse_bootinfo must always be called first */
161 parse_bootinfo(find_bootinfo());
164 * If we were passed in a board information, copy it into the
165 * residual data area.
168 memcpy((void *) __res, (void *) (r3 + KERNELBASE),
172 #if defined(CONFIG_BLK_DEV_INITRD)
174 * If the init RAM disk has been configured in, and there's a valid
175 * starting address for it, set it up.
178 initrd_start = r4 + KERNELBASE;
179 initrd_end = r5 + KERNELBASE;
181 #endif /* CONFIG_BLK_DEV_INITRD */
183 /* Copy the kernel command line arguments to a safe place. */
186 *(char *) (r7 + KERNELBASE) = 0;
187 strcpy(cmd_line, (char *) (r6 + KERNELBASE));
190 identify_ppc_sys_by_id(mfspr(SPRN_SVR));
192 /* setup the PowerPC module struct */
193 ppc_md.setup_arch = mpc8560ads_setup_arch;
194 ppc_md.show_cpuinfo = mpc85xx_ads_show_cpuinfo;
196 ppc_md.init_IRQ = mpc8560_ads_init_IRQ;
197 ppc_md.get_irq = openpic_get_irq;
199 ppc_md.restart = mpc85xx_restart;
200 ppc_md.power_off = mpc85xx_power_off;
201 ppc_md.halt = mpc85xx_halt;
203 ppc_md.find_end_of_memory = mpc85xx_find_end_of_memory;
205 ppc_md.time_init = NULL;
206 ppc_md.set_rtc_time = NULL;
207 ppc_md.get_rtc_time = NULL;
208 ppc_md.calibrate_decr = mpc85xx_calibrate_decr;
211 ppc_md.progress("mpc8560ads_init(): exit", 0);