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[PATCH] powerpc: trivial: modify comments to refer to new location of files
[deliverable/linux.git] / arch / ppc / platforms / 85xx / sbc8560.c
CommitLineData
1da177e4 1/*
1da177e4
LT		 2 * Wind River SBC8560 board specific routines
3 *
4c8d3d99 4 * Maintainer: Kumar Gala
1da177e4
LT		 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
14#include <linux/config.h>
15#include <linux/stddef.h>
16#include <linux/kernel.h>
17#include <linux/init.h>
18#include <linux/errno.h>
19#include <linux/reboot.h>
20#include <linux/pci.h>
21#include <linux/kdev_t.h>
22#include <linux/major.h>
23#include <linux/console.h>
24#include <linux/delay.h>
1da177e4
LT		 25#include <linux/seq_file.h>
26#include <linux/root_dev.h>
27#include <linux/serial.h>
28#include <linux/tty.h> /* for linux/serial_core.h */
29#include <linux/serial_core.h>
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>
1da177e4
LT		 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
55static void __init
56sbc8560_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;
9b4a1617 65 uart_req.iotype = UPIO_MEM;
1da177e4
LT		 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 */
97static void __init
98sbc8560_setup_arch(void)
99{
100 bd_t *binfo = (bd_t *) __res;
101 unsigned int freq;
102 struct gianfar_platform_data *pdata;
b37665e0 103 struct gianfar_mdio_data *mdata;
1da177e4
LT		 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 */
5be061ee 125 invalidate_tlbcam_entry(num_tlbcam_entries - 1);
1da177e4
LT		 126#endif
127
b37665e0
AF		 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;
133 mdata->irq[31] = -1;
b37665e0 134
1da177e4
LT		 135 /* setup the board related information for the enet controllers */
136 pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC1);
62aa751d
KG		 137 if (pdata) {
138 pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
7e78e5e5
KG		 139 pdata->bus_id = 0;
140 pdata->phy_id = 25;
62aa751d
KG		 141 memcpy(pdata->mac_addr, binfo->bi_enetaddr, 6);
142 }
1da177e4
LT		 143
144 pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC2);
62aa751d
KG		 145 if (pdata) {
146 pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
7e78e5e5
KG		 147 pdata->bus_id = 0;
148 pdata->phy_id = 26;
62aa751d
KG		 149 memcpy(pdata->mac_addr, binfo->bi_enet1addr, 6);
150 }
1da177e4
LT		 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/* ************************************************************************ */
165void __init
166platform_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 */
5be061ee 183 settlbcam(num_tlbcam_entries - 1, UARTA_ADDR,
1da177e4
LT		 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 */
252fcaed
KG		 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 */
1da177e4
LT		 231
232 if (ppc_md.progress)
233 ppc_md.progress("sbc8560_init(): exit", 0);
234}
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