4 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
6 * 2006 (c) MontaVista Software, Inc.
7 * Vitaly Bordug <vbordug@ru.mvista.com>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
15 #include <linux/stddef.h>
16 #include <linux/kernel.h>
17 #include <linux/init.h>
18 #include <linux/errno.h>
19 #include <linux/major.h>
20 #include <linux/delay.h>
21 #include <linux/irq.h>
22 #include <linux/module.h>
23 #include <linux/device.h>
24 #include <linux/platform_device.h>
26 #include <linux/of_platform.h>
27 #include <linux/phy.h>
28 #include <linux/phy_fixed.h>
29 #include <linux/spi/spi.h>
30 #include <linux/fsl_devices.h>
31 #include <linux/fs_enet_pd.h>
32 #include <linux/fs_uart_pd.h>
34 #include <asm/system.h>
35 #include <linux/atomic.h>
40 #include <asm/machdep.h>
41 #include <sysdev/fsl_soc.h>
42 #include <mm/mmu_decl.h>
44 #include <asm/fsl_hcalls.h> /* For the Freescale hypervisor */
46 extern void init_fcc_ioports(struct fs_platform_info
*);
47 extern void init_fec_ioports(struct fs_platform_info
*);
48 extern void init_smc_ioports(struct fs_uart_platform_info
*);
49 static phys_addr_t immrbase
= -1;
51 phys_addr_t
get_immrbase(void)
53 struct device_node
*soc
;
58 soc
= of_find_node_by_type(NULL
, "soc");
62 const u32
*prop
= of_get_property(soc
, "#address-cells", &size
);
64 if (prop
&& size
== 4)
69 prop
= of_get_property(soc
, "ranges", &size
);
71 immrbase
= of_translate_address(soc
, prop
+ naddr
);
79 EXPORT_SYMBOL(get_immrbase
);
81 static u32 sysfreq
= -1;
83 u32
fsl_get_sys_freq(void)
85 struct device_node
*soc
;
92 soc
= of_find_node_by_type(NULL
, "soc");
96 prop
= of_get_property(soc
, "clock-frequency", &size
);
97 if (!prop
|| size
!= sizeof(*prop
) || *prop
== 0)
98 prop
= of_get_property(soc
, "bus-frequency", &size
);
100 if (prop
&& size
== sizeof(*prop
))
106 EXPORT_SYMBOL(fsl_get_sys_freq
);
108 #if defined(CONFIG_CPM2) || defined(CONFIG_QUICC_ENGINE) || defined(CONFIG_8xx)
110 static u32 brgfreq
= -1;
112 u32
get_brgfreq(void)
114 struct device_node
*node
;
115 const unsigned int *prop
;
121 node
= of_find_compatible_node(NULL
, NULL
, "fsl,cpm-brg");
123 prop
= of_get_property(node
, "clock-frequency", &size
);
124 if (prop
&& size
== 4)
131 /* Legacy device binding -- will go away when no users are left. */
132 node
= of_find_node_by_type(NULL
, "cpm");
134 node
= of_find_compatible_node(NULL
, NULL
, "fsl,qe");
136 node
= of_find_node_by_type(NULL
, "qe");
139 prop
= of_get_property(node
, "brg-frequency", &size
);
140 if (prop
&& size
== 4)
143 if (brgfreq
== -1 || brgfreq
== 0) {
144 prop
= of_get_property(node
, "bus-frequency", &size
);
145 if (prop
&& size
== 4)
154 EXPORT_SYMBOL(get_brgfreq
);
156 static u32 fs_baudrate
= -1;
158 u32
get_baudrate(void)
160 struct device_node
*node
;
162 if (fs_baudrate
!= -1)
165 node
= of_find_node_by_type(NULL
, "serial");
168 const unsigned int *prop
= of_get_property(node
,
169 "current-speed", &size
);
179 EXPORT_SYMBOL(get_baudrate
);
180 #endif /* CONFIG_CPM2 */
182 #ifdef CONFIG_FIXED_PHY
183 static int __init
of_add_fixed_phys(void)
186 struct device_node
*np
;
188 struct fixed_phy_status status
= {};
190 for_each_node_by_name(np
, "ethernet") {
191 fixed_link
= (u32
*)of_get_property(np
, "fixed-link", NULL
);
196 status
.duplex
= fixed_link
[1];
197 status
.speed
= fixed_link
[2];
198 status
.pause
= fixed_link
[3];
199 status
.asym_pause
= fixed_link
[4];
201 ret
= fixed_phy_add(PHY_POLL
, fixed_link
[0], &status
);
210 arch_initcall(of_add_fixed_phys
);
211 #endif /* CONFIG_FIXED_PHY */
213 #if defined(CONFIG_FSL_SOC_BOOKE) || defined(CONFIG_PPC_86xx)
214 static __be32 __iomem
*rstcr
;
216 static int __init
setup_rstcr(void)
218 struct device_node
*np
;
220 for_each_node_by_name(np
, "global-utilities") {
221 if ((of_get_property(np
, "fsl,has-rstcr", NULL
))) {
222 rstcr
= of_iomap(np
, 0) + 0xb0;
224 printk (KERN_ERR
"Error: reset control "
225 "register not mapped!\n");
230 if (!rstcr
&& ppc_md
.restart
== fsl_rstcr_restart
)
231 printk(KERN_ERR
"No RSTCR register, warm reboot won't work\n");
239 arch_initcall(setup_rstcr
);
241 void fsl_rstcr_restart(char *cmd
)
245 /* set reset control register */
246 out_be32(rstcr
, 0x2); /* HRESET_REQ */
252 #if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
253 struct platform_diu_data_ops diu_ops
;
254 EXPORT_SYMBOL(diu_ops
);
258 * Restart the current partition
260 * This function should be assigned to the ppc_md.restart function pointer,
261 * to initiate a partition restart when we're running under the Freescale
264 void fsl_hv_restart(char *cmd
)
266 pr_info("hv restart\n");
267 fh_partition_restart(-1);
271 * Halt the current partition
273 * This function should be assigned to the ppc_md.power_off and ppc_md.halt
274 * function pointers, to shut down the partition when we're running under
275 * the Freescale hypervisor.
277 void fsl_hv_halt(void)
279 pr_info("hv exit\n");
280 fh_partition_stop(-1);