diff options
Diffstat (limited to 'arch/powerpc/platforms/52xx/lite5200.c')
-rw-r--r-- | arch/powerpc/platforms/52xx/lite5200.c | 95 |
1 files changed, 50 insertions, 45 deletions
diff --git a/arch/powerpc/platforms/52xx/lite5200.c b/arch/powerpc/platforms/52xx/lite5200.c index e11d27f9c4f..0caa3d955c3 100644 --- a/arch/powerpc/platforms/52xx/lite5200.c +++ b/arch/powerpc/platforms/52xx/lite5200.c | |||
@@ -15,32 +15,13 @@ | |||
15 | 15 | ||
16 | #undef DEBUG | 16 | #undef DEBUG |
17 | 17 | ||
18 | #include <linux/stddef.h> | ||
19 | #include <linux/kernel.h> | ||
20 | #include <linux/init.h> | 18 | #include <linux/init.h> |
21 | #include <linux/errno.h> | ||
22 | #include <linux/reboot.h> | ||
23 | #include <linux/pci.h> | 19 | #include <linux/pci.h> |
24 | #include <linux/kdev_t.h> | 20 | #include <linux/of.h> |
25 | #include <linux/major.h> | ||
26 | #include <linux/console.h> | ||
27 | #include <linux/delay.h> | ||
28 | #include <linux/seq_file.h> | ||
29 | #include <linux/root_dev.h> | ||
30 | #include <linux/initrd.h> | ||
31 | |||
32 | #include <asm/system.h> | ||
33 | #include <asm/atomic.h> | ||
34 | #include <asm/time.h> | 21 | #include <asm/time.h> |
35 | #include <asm/io.h> | 22 | #include <asm/io.h> |
36 | #include <asm/machdep.h> | 23 | #include <asm/machdep.h> |
37 | #include <asm/ipic.h> | ||
38 | #include <asm/irq.h> | ||
39 | #include <asm/prom.h> | 24 | #include <asm/prom.h> |
40 | #include <asm/udbg.h> | ||
41 | #include <sysdev/fsl_soc.h> | ||
42 | #include <asm/of_platform.h> | ||
43 | |||
44 | #include <asm/mpc52xx.h> | 25 | #include <asm/mpc52xx.h> |
45 | 26 | ||
46 | /* ************************************************************************ | 27 | /* ************************************************************************ |
@@ -49,19 +30,56 @@ | |||
49 | * | 30 | * |
50 | */ | 31 | */ |
51 | 32 | ||
33 | /* | ||
34 | * Fix clock configuration. | ||
35 | * | ||
36 | * Firmware is supposed to be responsible for this. If you are creating a | ||
37 | * new board port, do *NOT* duplicate this code. Fix your boot firmware | ||
38 | * to set it correctly in the first place | ||
39 | */ | ||
52 | static void __init | 40 | static void __init |
53 | lite5200_setup_cpu(void) | 41 | lite5200_fix_clock_config(void) |
42 | { | ||
43 | struct mpc52xx_cdm __iomem *cdm; | ||
44 | |||
45 | /* Map zones */ | ||
46 | cdm = mpc52xx_find_and_map("mpc5200-cdm"); | ||
47 | if (!cdm) { | ||
48 | printk(KERN_ERR "%s() failed; expect abnormal behaviour\n", | ||
49 | __FUNCTION__); | ||
50 | return; | ||
51 | } | ||
52 | |||
53 | /* Use internal 48 Mhz */ | ||
54 | out_8(&cdm->ext_48mhz_en, 0x00); | ||
55 | out_8(&cdm->fd_enable, 0x01); | ||
56 | if (in_be32(&cdm->rstcfg) & 0x40) /* Assumes 33Mhz clock */ | ||
57 | out_be16(&cdm->fd_counters, 0x0001); | ||
58 | else | ||
59 | out_be16(&cdm->fd_counters, 0x5555); | ||
60 | |||
61 | /* Unmap the regs */ | ||
62 | iounmap(cdm); | ||
63 | } | ||
64 | |||
65 | /* | ||
66 | * Fix setting of port_config register. | ||
67 | * | ||
68 | * Firmware is supposed to be responsible for this. If you are creating a | ||
69 | * new board port, do *NOT* duplicate this code. Fix your boot firmware | ||
70 | * to set it correctly in the first place | ||
71 | */ | ||
72 | static void __init | ||
73 | lite5200_fix_port_config(void) | ||
54 | { | 74 | { |
55 | struct mpc52xx_gpio __iomem *gpio; | 75 | struct mpc52xx_gpio __iomem *gpio; |
56 | u32 port_config; | 76 | u32 port_config; |
57 | 77 | ||
58 | /* Map zones */ | ||
59 | gpio = mpc52xx_find_and_map("mpc5200-gpio"); | 78 | gpio = mpc52xx_find_and_map("mpc5200-gpio"); |
60 | if (!gpio) { | 79 | if (!gpio) { |
61 | printk(KERN_ERR __FILE__ ": " | 80 | printk(KERN_ERR "%s() failed. expect abnormal behavior\n", |
62 | "Error while mapping GPIO register for port config. " | 81 | __FUNCTION__); |
63 | "Expect some abnormal behavior\n"); | 82 | return; |
64 | goto error; | ||
65 | } | 83 | } |
66 | 84 | ||
67 | /* Set port config */ | 85 | /* Set port config */ |
@@ -80,7 +98,6 @@ lite5200_setup_cpu(void) | |||
80 | out_be32(&gpio->port_config, port_config); | 98 | out_be32(&gpio->port_config, port_config); |
81 | 99 | ||
82 | /* Unmap zone */ | 100 | /* Unmap zone */ |
83 | error: | ||
84 | iounmap(gpio); | 101 | iounmap(gpio); |
85 | } | 102 | } |
86 | 103 | ||
@@ -119,9 +136,12 @@ static void __init lite5200_setup_arch(void) | |||
119 | if (ppc_md.progress) | 136 | if (ppc_md.progress) |
120 | ppc_md.progress("lite5200_setup_arch()", 0); | 137 | ppc_md.progress("lite5200_setup_arch()", 0); |
121 | 138 | ||
122 | /* CPU & Port mux setup */ | 139 | /* Fix things that firmware should have done. */ |
123 | mpc52xx_setup_cpu(); /* Generic */ | 140 | lite5200_fix_clock_config(); |
124 | lite5200_setup_cpu(); /* Platorm specific */ | 141 | lite5200_fix_port_config(); |
142 | |||
143 | /* Some mpc5200 & mpc5200b related configuration */ | ||
144 | mpc5200_setup_xlb_arbiter(); | ||
125 | 145 | ||
126 | #ifdef CONFIG_PM | 146 | #ifdef CONFIG_PM |
127 | mpc52xx_suspend.board_suspend_prepare = lite5200_suspend_prepare; | 147 | mpc52xx_suspend.board_suspend_prepare = lite5200_suspend_prepare; |
@@ -150,20 +170,6 @@ static void __init lite5200_setup_arch(void) | |||
150 | 170 | ||
151 | } | 171 | } |
152 | 172 | ||
153 | static void lite5200_show_cpuinfo(struct seq_file *m) | ||
154 | { | ||
155 | struct device_node* np = of_find_all_nodes(NULL); | ||
156 | const char *model = NULL; | ||
157 | |||
158 | if (np) | ||
159 | model = of_get_property(np, "model", NULL); | ||
160 | |||
161 | seq_printf(m, "vendor\t\t: Freescale Semiconductor\n"); | ||
162 | seq_printf(m, "machine\t\t: %s\n", model ? model : "unknown"); | ||
163 | |||
164 | of_node_put(np); | ||
165 | } | ||
166 | |||
167 | /* | 173 | /* |
168 | * Called very early, MMU is off, device-tree isn't unflattened | 174 | * Called very early, MMU is off, device-tree isn't unflattened |
169 | */ | 175 | */ |
@@ -187,6 +193,5 @@ define_machine(lite5200) { | |||
187 | .init = mpc52xx_declare_of_platform_devices, | 193 | .init = mpc52xx_declare_of_platform_devices, |
188 | .init_IRQ = mpc52xx_init_irq, | 194 | .init_IRQ = mpc52xx_init_irq, |
189 | .get_irq = mpc52xx_get_irq, | 195 | .get_irq = mpc52xx_get_irq, |
190 | .show_cpuinfo = lite5200_show_cpuinfo, | ||
191 | .calibrate_decr = generic_calibrate_decr, | 196 | .calibrate_decr = generic_calibrate_decr, |
192 | }; | 197 | }; |