aboutsummaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
authorKim Phillips <kim.phillips@freescale.com>2006-10-02 21:10:30 -0400
committerPaul Mackerras <paulus@samba.org>2006-10-04 01:27:49 -0400
commit9020fc960b8f5fbca0de6e4d11881ddc827aa61d (patch)
treef8ebaf9057a93a3f3d6d6af2e5aa73b695ddce65 /arch
parent6c4a2501d0b9fe90882efea5541275a46cda2a1a (diff)
[POWERPC] Add support for the mpc832x mds board
Add support for MPC832x MDS evaluation board. This patch depends on the 8360+QE lib patches by Leo. The MPC832x processors (MPC8323E, MPC8323, MPC8321E, MPC8321) sport the e300c2 core plus a QUICC Engine (QE). This patch adds support for the 832x MDS evaluation board. The 832x MDS dts and defconfig files are pending more tests. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/platforms/83xx/Kconfig13
-rw-r--r--arch/powerpc/platforms/83xx/mpc832x_mds.c215
-rw-r--r--arch/powerpc/platforms/83xx/mpc832x_mds.h19
3 files changed, 247 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/83xx/Kconfig b/arch/powerpc/platforms/83xx/Kconfig
index 5fe7b7faf45f..0975e94ac7c4 100644
--- a/arch/powerpc/platforms/83xx/Kconfig
+++ b/arch/powerpc/platforms/83xx/Kconfig
@@ -5,6 +5,13 @@ choice
5 prompt "Machine Type" 5 prompt "Machine Type"
6 default MPC834x_SYS 6 default MPC834x_SYS
7 7
8config MPC832x_MDS
9 bool "Freescale MPC832x MDS"
10 select DEFAULT_UIMAGE
11 select QUICC_ENGINE
12 help
13 This option enables support for the MPC832x MDS evaluation board.
14
8config MPC834x_SYS 15config MPC834x_SYS
9 bool "Freescale MPC834x SYS" 16 bool "Freescale MPC834x SYS"
10 select DEFAULT_UIMAGE 17 select DEFAULT_UIMAGE
@@ -27,6 +34,12 @@ config MPC834x_ITX
27 34
28endchoice 35endchoice
29 36
37config PPC_MPC832x
38 bool
39 select PPC_UDBG_16550
40 select PPC_INDIRECT_PCI
41 default y if MPC832x_MDS
42
30config MPC834x 43config MPC834x
31 bool 44 bool
32 select PPC_UDBG_16550 45 select PPC_UDBG_16550
diff --git a/arch/powerpc/platforms/83xx/mpc832x_mds.c b/arch/powerpc/platforms/83xx/mpc832x_mds.c
new file mode 100644
index 000000000000..54dea9d42dc9
--- /dev/null
+++ b/arch/powerpc/platforms/83xx/mpc832x_mds.c
@@ -0,0 +1,215 @@
1/*
2 * Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved.
3 *
4 * Description:
5 * MPC832xE MDS board specific routines.
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 */
12
13#include <linux/stddef.h>
14#include <linux/kernel.h>
15#include <linux/init.h>
16#include <linux/errno.h>
17#include <linux/reboot.h>
18#include <linux/pci.h>
19#include <linux/kdev_t.h>
20#include <linux/major.h>
21#include <linux/console.h>
22#include <linux/delay.h>
23#include <linux/seq_file.h>
24#include <linux/root_dev.h>
25#include <linux/initrd.h>
26
27#include <asm/system.h>
28#include <asm/atomic.h>
29#include <asm/time.h>
30#include <asm/io.h>
31#include <asm/machdep.h>
32#include <asm/ipic.h>
33#include <asm/bootinfo.h>
34#include <asm/irq.h>
35#include <asm/prom.h>
36#include <asm/udbg.h>
37#include <sysdev/fsl_soc.h>
38#include <asm/qe.h>
39#include <asm/qe_ic.h>
40
41#include "mpc83xx.h"
42#include "mpc832x_mds.h"
43
44#undef DEBUG
45#ifdef DEBUG
46#define DBG(fmt...) udbg_printf(fmt)
47#else
48#define DBG(fmt...)
49#endif
50
51#ifndef CONFIG_PCI
52unsigned long isa_io_base = 0;
53unsigned long isa_mem_base = 0;
54#endif
55
56static u8 *bcsr_regs = NULL;
57
58u8 *get_bcsr(void)
59{
60 return bcsr_regs;
61}
62
63/* ************************************************************************
64 *
65 * Setup the architecture
66 *
67 */
68static void __init mpc832x_sys_setup_arch(void)
69{
70 struct device_node *np;
71
72 if (ppc_md.progress)
73 ppc_md.progress("mpc832x_sys_setup_arch()", 0);
74
75 np = of_find_node_by_type(NULL, "cpu");
76 if (np != 0) {
77 unsigned int *fp =
78 (int *)get_property(np, "clock-frequency", NULL);
79 if (fp != 0)
80 loops_per_jiffy = *fp / HZ;
81 else
82 loops_per_jiffy = 50000000 / HZ;
83 of_node_put(np);
84 }
85
86 /* Map BCSR area */
87 np = of_find_node_by_name(NULL, "bcsr");
88 if (np != 0) {
89 struct resource res;
90
91 of_address_to_resource(np, 0, &res);
92 bcsr_regs = ioremap(res.start, res.end - res.start +1);
93 of_node_put(np);
94 }
95
96#ifdef CONFIG_PCI
97 for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
98 add_bridge(np);
99
100 ppc_md.pci_swizzle = common_swizzle;
101 ppc_md.pci_exclude_device = mpc83xx_exclude_device;
102#endif
103
104#ifdef CONFIG_QUICC_ENGINE
105 qe_reset();
106
107 if ((np = of_find_node_by_name(np, "par_io")) != NULL) {
108 par_io_init(np);
109 of_node_put(np);
110
111 for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;)
112 par_io_of_config(np);
113 }
114
115 if ((np = of_find_compatible_node(NULL, "network", "ucc_geth"))
116 != NULL){
117 /* Reset the Ethernet PHY */
118 bcsr_regs[9] &= ~0x20;
119 udelay(1000);
120 bcsr_regs[9] |= 0x20;
121 iounmap(bcsr_regs);
122 of_node_put(np);
123 }
124
125#endif /* CONFIG_QUICC_ENGINE */
126
127#ifdef CONFIG_BLK_DEV_INITRD
128 if (initrd_start)
129 ROOT_DEV = Root_RAM0;
130 else
131#endif
132#ifdef CONFIG_ROOT_NFS
133 ROOT_DEV = Root_NFS;
134#else
135 ROOT_DEV = Root_HDA1;
136#endif
137}
138
139void __init mpc832x_sys_init_IRQ(void)
140{
141
142 struct device_node *np;
143
144 np = of_find_node_by_type(NULL, "ipic");
145 if (!np)
146 return;
147
148 ipic_init(np, 0);
149
150 /* Initialize the default interrupt mapping priorities,
151 * in case the boot rom changed something on us.
152 */
153 ipic_set_default_priority();
154 of_node_put(np);
155
156#ifdef CONFIG_QUICC_ENGINE
157 np = of_find_node_by_type(NULL, "qeic");
158 if (!np)
159 return;
160
161 qe_ic_init(np, 0);
162 of_node_put(np);
163#endif /* CONFIG_QUICC_ENGINE */
164}
165
166#if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
167extern ulong ds1374_get_rtc_time(void);
168extern int ds1374_set_rtc_time(ulong);
169
170static int __init mpc832x_rtc_hookup(void)
171{
172 struct timespec tv;
173
174 ppc_md.get_rtc_time = ds1374_get_rtc_time;
175 ppc_md.set_rtc_time = ds1374_set_rtc_time;
176
177 tv.tv_nsec = 0;
178 tv.tv_sec = (ppc_md.get_rtc_time) ();
179 do_settimeofday(&tv);
180
181 return 0;
182}
183
184late_initcall(mpc832x_rtc_hookup);
185#endif
186
187/*
188 * Called very early, MMU is off, device-tree isn't unflattened
189 */
190static int __init mpc832x_sys_probe(void)
191{
192 char *model = of_get_flat_dt_prop(of_get_flat_dt_root(),
193 "model", NULL);
194
195 if (model == NULL)
196 return 0;
197 if (strcmp(model, "MPC8323EMDS"))
198 return 0;
199
200 DBG("%s found\n", model);
201
202 return 1;
203}
204
205define_machine(mpc832x_mds) {
206 .name = "MPC832x MDS",
207 .probe = mpc832x_sys_probe,
208 .setup_arch = mpc832x_sys_setup_arch,
209 .init_IRQ = mpc832x_sys_init_IRQ,
210 .get_irq = ipic_get_irq,
211 .restart = mpc83xx_restart,
212 .time_init = mpc83xx_time_init,
213 .calibrate_decr = generic_calibrate_decr,
214 .progress = udbg_progress,
215};
diff --git a/arch/powerpc/platforms/83xx/mpc832x_mds.h b/arch/powerpc/platforms/83xx/mpc832x_mds.h
new file mode 100644
index 000000000000..a49588904f8a
--- /dev/null
+++ b/arch/powerpc/platforms/83xx/mpc832x_mds.h
@@ -0,0 +1,19 @@
1/*
2 * Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved.
3 *
4 * Description:
5 * MPC832x MDS board specific header.
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 *
12 */
13
14#ifndef __MACH_MPC832x_MDS_H__
15#define __MACH_MPC832x_MDS_H__
16
17extern u8 *get_bcsr(void);
18
19#endif /* __MACH_MPC832x_MDS_H__ */