2 * arch/ppc/platforms/85xx/mpc8560_ads.c
4 * MPC8560ADS board specific routines
6 * Maintainer: Kumar Gala <kumar.gala@freescale.com>
8 * Copyright 2004 Freescale Semiconductor Inc.
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
16 #include <linux/config.h>
17 #include <linux/stddef.h>
18 #include <linux/kernel.h>
19 #include <linux/init.h>
20 #include <linux/errno.h>
21 #include <linux/reboot.h>
22 #include <linux/pci.h>
23 #include <linux/kdev_t.h>
24 #include <linux/major.h>
25 #include <linux/console.h>
26 #include <linux/delay.h>
27 #include <linux/seq_file.h>
28 #include <linux/root_dev.h>
29 #include <linux/serial.h>
30 #include <linux/tty.h> /* for linux/serial_core.h */
31 #include <linux/serial_core.h>
32 #include <linux/initrd.h>
33 #include <linux/module.h>
34 #include <linux/fsl_devices.h>
36 #include <asm/system.h>
37 #include <asm/pgtable.h>
39 #include <asm/atomic.h>
42 #include <asm/machdep.h>
43 #include <asm/open_pic.h>
44 #include <asm/bootinfo.h>
45 #include <asm/pci-bridge.h>
46 #include <asm/mpc85xx.h>
48 #include <asm/immap_85xx.h>
50 #include <asm/ppc_sys.h>
52 #include <mm/mmu_decl.h>
54 #include <syslib/cpm2_pic.h>
55 #include <syslib/ppc85xx_common.h>
56 #include <syslib/ppc85xx_setup.h>
59 /* ************************************************************************
61 * Setup the architecture
66 mpc8560ads_setup_arch(void)
68 bd_t *binfo = (bd_t *) __res;
70 struct gianfar_platform_data *pdata;
74 /* get the core frequency */
75 freq = binfo->bi_intfreq;
78 ppc_md.progress("mpc8560ads_setup_arch()", 0);
80 /* Set loops_per_jiffy to a half-way reasonable value,
81 for use until calibrate_delay gets called. */
82 loops_per_jiffy = freq / HZ;
85 /* setup PCI host bridges */
89 /* setup the board related information for the enet controllers */
90 pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC1);
92 pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
93 pdata->interruptPHY = MPC85xx_IRQ_EXT5;
95 /* fixup phy address */
96 pdata->phy_reg_addr += binfo->bi_immr_base;
97 memcpy(pdata->mac_addr, binfo->bi_enetaddr, 6);
100 pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC2);
102 pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
103 pdata->interruptPHY = MPC85xx_IRQ_EXT5;
105 /* fixup phy address */
106 pdata->phy_reg_addr += binfo->bi_immr_base;
107 memcpy(pdata->mac_addr, binfo->bi_enet1addr, 6);
110 #ifdef CONFIG_BLK_DEV_INITRD
112 ROOT_DEV = Root_RAM0;
115 #ifdef CONFIG_ROOT_NFS
118 ROOT_DEV = Root_HDA1;
122 static irqreturn_t cpm2_cascade(int irq, void *dev_id, struct pt_regs *regs)
124 while ((irq = cpm2_get_irq(regs)) >= 0)
129 static struct irqaction cpm2_irqaction = {
130 .handler = cpm2_cascade,
131 .flags = SA_INTERRUPT,
132 .mask = CPU_MASK_NONE,
133 .name = "cpm2_cascade",
137 mpc8560_ads_init_IRQ(void)
140 mpc85xx_ads_init_IRQ();
145 setup_irq(MPC85xx_IRQ_CPM, &cpm2_irqaction);
152 /* ************************************************************************ */
154 platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
155 unsigned long r6, unsigned long r7)
157 /* parse_bootinfo must always be called first */
158 parse_bootinfo(find_bootinfo());
161 * If we were passed in a board information, copy it into the
162 * residual data area.
165 memcpy((void *) __res, (void *) (r3 + KERNELBASE),
169 #if defined(CONFIG_BLK_DEV_INITRD)
171 * If the init RAM disk has been configured in, and there's a valid
172 * starting address for it, set it up.
175 initrd_start = r4 + KERNELBASE;
176 initrd_end = r5 + KERNELBASE;
178 #endif /* CONFIG_BLK_DEV_INITRD */
180 /* Copy the kernel command line arguments to a safe place. */
183 *(char *) (r7 + KERNELBASE) = 0;
184 strcpy(cmd_line, (char *) (r6 + KERNELBASE));
187 identify_ppc_sys_by_id(mfspr(SPRN_SVR));
189 /* setup the PowerPC module struct */
190 ppc_md.setup_arch = mpc8560ads_setup_arch;
191 ppc_md.show_cpuinfo = mpc85xx_ads_show_cpuinfo;
193 ppc_md.init_IRQ = mpc8560_ads_init_IRQ;
194 ppc_md.get_irq = openpic_get_irq;
196 ppc_md.restart = mpc85xx_restart;
197 ppc_md.power_off = mpc85xx_power_off;
198 ppc_md.halt = mpc85xx_halt;
200 ppc_md.find_end_of_memory = mpc85xx_find_end_of_memory;
202 ppc_md.time_init = NULL;
203 ppc_md.set_rtc_time = NULL;
204 ppc_md.get_rtc_time = NULL;
205 ppc_md.calibrate_decr = mpc85xx_calibrate_decr;
208 ppc_md.progress("mpc8560ads_init(): exit", 0);