aboutsummaryrefslogtreecommitdiffstats
path: root/arch/powerpc/platforms/8xx/ep88xc.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-12 00:55:47 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-12 00:55:47 -0400
commite86908614f2c7fec401827e5cefd7a6ea9407f85 (patch)
treefcb5d9e52422b37bdaf0e647126ebdfc1680f162 /arch/powerpc/platforms/8xx/ep88xc.c
parent547307420931344a868275bd7ea7a30f117a15a9 (diff)
parent9b4b8feb962f4b3e74768b7205f1f8f6cce87238 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (408 commits) [POWERPC] Add memchr() to the bootwrapper [POWERPC] Implement logging of unhandled signals [POWERPC] Add legacy serial support for OPB with flattened device tree [POWERPC] Use 1TB segments [POWERPC] XilinxFB: Allow fixed framebuffer base address [POWERPC] XilinxFB: Add support for custom screen resolution [POWERPC] XilinxFB: Use pdata to pass around framebuffer parameters [POWERPC] PCI: Add 64-bit physical address support to setup_indirect_pci [POWERPC] 4xx: Kilauea defconfig file [POWERPC] 4xx: Kilauea DTS [POWERPC] 4xx: Add AMCC Kilauea eval board support to platforms/40x [POWERPC] 4xx: Add AMCC 405EX support to cputable.c [POWERPC] Adjust TASK_SIZE on ppc32 systems to 3GB that are capable [POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers [POWERPC] 85xx: Enable FP emulation in MPC8560 ADS defconfig [POWERPC] 85xx: Killed <asm/mpc85xx.h> [POWERPC] 85xx: Add cpm nodes for 8541/8555 CDS [POWERPC] 85xx: Convert mpc8560ads to the new CPM binding. [POWERPC] mpc8272ads: Remove muram from the CPM reg property. [POWERPC] Make clockevents work on PPC601 processors ... Fixed up conflict in Documentation/powerpc/booting-without-of.txt manually.
Diffstat (limited to 'arch/powerpc/platforms/8xx/ep88xc.c')
-rw-r--r--arch/powerpc/platforms/8xx/ep88xc.c176
1 files changed, 176 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/8xx/ep88xc.c b/arch/powerpc/platforms/8xx/ep88xc.c
new file mode 100644
index 000000000000..c518b6cc5fab
--- /dev/null
+++ b/arch/powerpc/platforms/8xx/ep88xc.c
@@ -0,0 +1,176 @@
1/*
2 * Platform setup for the Embedded Planet EP88xC board
3 *
4 * Author: Scott Wood <scottwood@freescale.com>
5 * Copyright 2007 Freescale Semiconductor, Inc.
6 *
7 * This file is licensed under the terms of the GNU General Public License
8 * version 2. This program is licensed "as is" without any warranty of any
9 * kind, whether express or implied.
10 */
11
12#include <linux/init.h>
13#include <linux/of_platform.h>
14
15#include <asm/machdep.h>
16#include <asm/io.h>
17#include <asm/udbg.h>
18#include <asm/commproc.h>
19
20#include <sysdev/commproc.h>
21
22struct cpm_pin {
23 int port, pin, flags;
24};
25
26static struct cpm_pin ep88xc_pins[] = {
27 /* SMC1 */
28 {1, 24, CPM_PIN_INPUT}, /* RX */
29 {1, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */
30
31 /* SCC2 */
32 {0, 12, CPM_PIN_INPUT}, /* TX */
33 {0, 13, CPM_PIN_INPUT}, /* RX */
34 {2, 8, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO}, /* CD */
35 {2, 9, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO}, /* CTS */
36 {2, 14, CPM_PIN_INPUT}, /* RTS */
37
38 /* MII1 */
39 {0, 0, CPM_PIN_INPUT},
40 {0, 1, CPM_PIN_INPUT},
41 {0, 2, CPM_PIN_INPUT},
42 {0, 3, CPM_PIN_INPUT},
43 {0, 4, CPM_PIN_OUTPUT},
44 {0, 10, CPM_PIN_OUTPUT},
45 {0, 11, CPM_PIN_OUTPUT},
46 {1, 19, CPM_PIN_INPUT},
47 {1, 31, CPM_PIN_INPUT},
48 {2, 12, CPM_PIN_INPUT},
49 {2, 13, CPM_PIN_INPUT},
50 {3, 8, CPM_PIN_INPUT},
51 {4, 30, CPM_PIN_OUTPUT},
52 {4, 31, CPM_PIN_OUTPUT},
53
54 /* MII2 */
55 {4, 14, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
56 {4, 15, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
57 {4, 16, CPM_PIN_OUTPUT},
58 {4, 17, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
59 {4, 18, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
60 {4, 19, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
61 {4, 20, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
62 {4, 21, CPM_PIN_OUTPUT},
63 {4, 22, CPM_PIN_OUTPUT},
64 {4, 23, CPM_PIN_OUTPUT},
65 {4, 24, CPM_PIN_OUTPUT},
66 {4, 25, CPM_PIN_OUTPUT},
67 {4, 26, CPM_PIN_OUTPUT},
68 {4, 27, CPM_PIN_OUTPUT},
69 {4, 28, CPM_PIN_OUTPUT},
70 {4, 29, CPM_PIN_OUTPUT},
71
72 /* USB */
73 {0, 6, CPM_PIN_INPUT}, /* CLK2 */
74 {0, 14, CPM_PIN_INPUT}, /* USBOE */
75 {0, 15, CPM_PIN_INPUT}, /* USBRXD */
76 {2, 6, CPM_PIN_OUTPUT}, /* USBTXN */
77 {2, 7, CPM_PIN_OUTPUT}, /* USBTXP */
78 {2, 10, CPM_PIN_INPUT}, /* USBRXN */
79 {2, 11, CPM_PIN_INPUT}, /* USBRXP */
80
81 /* Misc */
82 {1, 26, CPM_PIN_INPUT}, /* BRGO2 */
83 {1, 27, CPM_PIN_INPUT}, /* BRGO1 */
84};
85
86static void __init init_ioports(void)
87{
88 int i;
89
90 for (i = 0; i < ARRAY_SIZE(ep88xc_pins); i++) {
91 struct cpm_pin *pin = &ep88xc_pins[i];
92 cpm1_set_pin(pin->port, pin->pin, pin->flags);
93 }
94
95 cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX);
96 cpm1_clk_setup(CPM_CLK_SCC1, CPM_CLK2, CPM_CLK_TX); /* USB */
97 cpm1_clk_setup(CPM_CLK_SCC1, CPM_CLK2, CPM_CLK_RX);
98 cpm1_clk_setup(CPM_CLK_SCC2, CPM_BRG2, CPM_CLK_TX);
99 cpm1_clk_setup(CPM_CLK_SCC2, CPM_BRG2, CPM_CLK_RX);
100}
101
102static u8 __iomem *ep88xc_bcsr;
103
104#define BCSR7_SCC2_ENABLE 0x10
105
106#define BCSR8_PHY1_ENABLE 0x80
107#define BCSR8_PHY1_POWER 0x40
108#define BCSR8_PHY2_ENABLE 0x20
109#define BCSR8_PHY2_POWER 0x10
110
111#define BCSR9_USB_ENABLE 0x80
112#define BCSR9_USB_POWER 0x40
113#define BCSR9_USB_HOST 0x20
114#define BCSR9_USB_FULL_SPEED_TARGET 0x10
115
116static void __init ep88xc_setup_arch(void)
117{
118 struct device_node *np;
119
120 cpm_reset();
121 init_ioports();
122
123 np = of_find_compatible_node(NULL, NULL, "fsl,ep88xc-bcsr");
124 if (!np) {
125 printk(KERN_CRIT "Could not find fsl,ep88xc-bcsr node\n");
126 return;
127 }
128
129 ep88xc_bcsr = of_iomap(np, 0);
130 of_node_put(np);
131
132 if (!ep88xc_bcsr) {
133 printk(KERN_CRIT "Could not remap BCSR\n");
134 return;
135 }
136
137 setbits8(&ep88xc_bcsr[7], BCSR7_SCC2_ENABLE);
138 setbits8(&ep88xc_bcsr[8], BCSR8_PHY1_ENABLE | BCSR8_PHY1_POWER |
139 BCSR8_PHY2_ENABLE | BCSR8_PHY2_POWER);
140}
141
142static int __init ep88xc_probe(void)
143{
144 unsigned long root = of_get_flat_dt_root();
145 return of_flat_dt_is_compatible(root, "fsl,ep88xc");
146}
147
148static struct of_device_id __initdata of_bus_ids[] = {
149 { .name = "soc", },
150 { .name = "cpm", },
151 { .name = "localbus", },
152 {},
153};
154
155static int __init declare_of_platform_devices(void)
156{
157 /* Publish the QE devices */
158 if (machine_is(ep88xc))
159 of_platform_bus_probe(NULL, of_bus_ids, NULL);
160
161 return 0;
162}
163device_initcall(declare_of_platform_devices);
164
165define_machine(ep88xc) {
166 .name = "Embedded Planet EP88xC",
167 .probe = ep88xc_probe,
168 .setup_arch = ep88xc_setup_arch,
169 .init_IRQ = m8xx_pic_init,
170 .get_irq = mpc8xx_get_irq,
171 .restart = mpc8xx_restart,
172 .calibrate_decr = mpc8xx_calibrate_decr,
173 .set_rtc_time = mpc8xx_set_rtc_time,
174 .get_rtc_time = mpc8xx_get_rtc_time,
175 .progress = udbg_progress,
176};