aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/plat-omap/common.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/plat-omap/common.c')
-rw-r--r--arch/arm/plat-omap/common.c95
1 files changed, 2 insertions, 93 deletions
diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c
index ebcf006406f9..3a4768d55895 100644
--- a/arch/arm/plat-omap/common.c
+++ b/arch/arm/plat-omap/common.c
@@ -54,50 +54,6 @@ static const void *get_config(u16 tag, size_t len, int skip, size_t *len_out)
54 struct omap_board_config_kernel *kinfo = NULL; 54 struct omap_board_config_kernel *kinfo = NULL;
55 int i; 55 int i;
56 56
57#ifdef CONFIG_OMAP_BOOT_TAG
58 struct omap_board_config_entry *info = NULL;
59
60 if (omap_bootloader_tag_len > 4)
61 info = (struct omap_board_config_entry *) omap_bootloader_tag;
62 while (info != NULL) {
63 u8 *next;
64
65 if (info->tag == tag) {
66 if (skip == 0)
67 break;
68 skip--;
69 }
70
71 if ((info->len & 0x03) != 0) {
72 /* We bail out to avoid an alignment fault */
73 printk(KERN_ERR "OMAP peripheral config: Length (%d) not word-aligned (tag %04x)\n",
74 info->len, info->tag);
75 return NULL;
76 }
77 next = (u8 *) info + sizeof(*info) + info->len;
78 if (next >= omap_bootloader_tag + omap_bootloader_tag_len)
79 info = NULL;
80 else
81 info = (struct omap_board_config_entry *) next;
82 }
83 if (info != NULL) {
84 /* Check the length as a lame attempt to check for
85 * binary inconsistency. */
86 if (len != NO_LENGTH_CHECK) {
87 /* Word-align len */
88 if (len & 0x03)
89 len = (len + 3) & ~0x03;
90 if (info->len != len) {
91 printk(KERN_ERR "OMAP peripheral config: Length mismatch with tag %x (want %d, got %d)\n",
92 tag, len, info->len);
93 return NULL;
94 }
95 }
96 if (len_out != NULL)
97 *len_out = info->len;
98 return info->data;
99 }
100#endif
101 /* Try to find the config from the board-specific structures 57 /* Try to find the config from the board-specific structures
102 * in the kernel. */ 58 * in the kernel. */
103 for (i = 0; i < omap_board_config_size; i++) { 59 for (i = 0; i < omap_board_config_size; i++) {
@@ -127,50 +83,6 @@ const void *omap_get_var_config(u16 tag, size_t *len)
127} 83}
128EXPORT_SYMBOL(omap_get_var_config); 84EXPORT_SYMBOL(omap_get_var_config);
129 85
130static int __init omap_add_serial_console(void)
131{
132 const struct omap_serial_console_config *con_info;
133 const struct omap_uart_config *uart_info;
134 static char speed[11], *opt = NULL;
135 int line, i, uart_idx;
136
137 uart_info = omap_get_config(OMAP_TAG_UART, struct omap_uart_config);
138 con_info = omap_get_config(OMAP_TAG_SERIAL_CONSOLE,
139 struct omap_serial_console_config);
140 if (uart_info == NULL || con_info == NULL)
141 return 0;
142
143 if (con_info->console_uart == 0)
144 return 0;
145
146 if (con_info->console_speed) {
147 snprintf(speed, sizeof(speed), "%u", con_info->console_speed);
148 opt = speed;
149 }
150
151 uart_idx = con_info->console_uart - 1;
152 if (uart_idx >= OMAP_MAX_NR_PORTS) {
153 printk(KERN_INFO "Console: external UART#%d. "
154 "Not adding it as console this time.\n",
155 uart_idx + 1);
156 return 0;
157 }
158 if (!(uart_info->enabled_uarts & (1 << uart_idx))) {
159 printk(KERN_ERR "Console: Selected UART#%d is "
160 "not enabled for this platform\n",
161 uart_idx + 1);
162 return -1;
163 }
164 line = 0;
165 for (i = 0; i < uart_idx; i++) {
166 if (uart_info->enabled_uarts & (1 << i))
167 line++;
168 }
169 return add_preferred_console("ttyS", line, opt);
170}
171console_initcall(omap_add_serial_console);
172
173
174/* 86/*
175 * 32KHz clocksource ... always available, on pretty most chips except 87 * 32KHz clocksource ... always available, on pretty most chips except
176 * OMAP 730 and 1510. Other timers could be used as clocksources, with 88 * OMAP 730 and 1510. Other timers could be used as clocksources, with
@@ -253,11 +165,8 @@ static struct clocksource clocksource_32k = {
253 */ 165 */
254unsigned long long sched_clock(void) 166unsigned long long sched_clock(void)
255{ 167{
256 unsigned long long ret; 168 return clocksource_cyc2ns(clocksource_32k.read(&clocksource_32k),
257 169 clocksource_32k.mult, clocksource_32k.shift);
258 ret = (unsigned long long)clocksource_32k.read(&clocksource_32k);
259 ret = (ret * clocksource_32k.mult_orig) >> clocksource_32k.shift;
260 return ret;
261} 170}
262 171
263static int __init omap_init_clocksource_32k(void) 172static int __init omap_init_clocksource_32k(void)