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authorMaxime Ripard <maxime.ripard@free-electrons.com>2014-07-07 16:25:26 +0200
committerNicolas Ferre <nicolas.ferre@atmel.com>2014-08-25 16:24:25 +0200
commit5c0593db802c8a9da15216615e466fd4e729df6f (patch)
treeac95b1950b51d6c09fbc0a6f347610a70a92e474 /arch/arm/mach-at91
parent99d63fa1c8fe8853540116a6deaedc1ba1fc0468 (diff)
ARM: at91: Remove poweroff DT probing
Now that the poweroff code is a driver of its own, remove the DT probing in mach-at91 and let the usual DT code do its job. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'arch/arm/mach-at91')
-rw-r--r--arch/arm/mach-at91/setup.c77
1 files changed, 0 insertions, 77 deletions
diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c
index 25196d5096be..6fe03f31d3d2 100644
--- a/arch/arm/mach-at91/setup.c
+++ b/arch/arm/mach-at91/setup.c
@@ -389,82 +389,6 @@ static void at91_dt_ramc(void)
at91_pm_set_standby(of_id->data);
}
-static struct of_device_id shdwc_ids[] = {
- { .compatible = "atmel,at91sam9260-shdwc", },
- { .compatible = "atmel,at91sam9rl-shdwc", },
- { .compatible = "atmel,at91sam9x5-shdwc", },
- { /*sentinel*/ }
-};
-
-static const char *shdwc_wakeup_modes[] = {
- [AT91_SHDW_WKMODE0_NONE] = "none",
- [AT91_SHDW_WKMODE0_HIGH] = "high",
- [AT91_SHDW_WKMODE0_LOW] = "low",
- [AT91_SHDW_WKMODE0_ANYLEVEL] = "any",
-};
-
-const int at91_dtget_shdwc_wakeup_mode(struct device_node *np)
-{
- const char *pm;
- int err, i;
-
- err = of_property_read_string(np, "atmel,wakeup-mode", &pm);
- if (err < 0)
- return AT91_SHDW_WKMODE0_ANYLEVEL;
-
- for (i = 0; i < ARRAY_SIZE(shdwc_wakeup_modes); i++)
- if (!strcasecmp(pm, shdwc_wakeup_modes[i]))
- return i;
-
- return -ENODEV;
-}
-
-static void at91_dt_shdwc(void)
-{
- struct device_node *np;
- int wakeup_mode;
- u32 reg;
- u32 mode = 0;
-
- np = of_find_matching_node(NULL, shdwc_ids);
- if (!np) {
- pr_debug("unable to find compatible shutdown (shdwc) controller node in dtb\n");
- return;
- }
-
- at91_shdwc_base = of_iomap(np, 0);
- if (!at91_shdwc_base)
- panic(pr_fmt("unable to map shdwc cpu registers\n"));
-
- wakeup_mode = at91_dtget_shdwc_wakeup_mode(np);
- if (wakeup_mode < 0) {
- pr_warn("shdwc unknown wakeup mode\n");
- goto end;
- }
-
- if (!of_property_read_u32(np, "atmel,wakeup-counter", &reg)) {
- if (reg > AT91_SHDW_CPTWK0_MAX) {
- pr_warn("shdwc wakeup counter 0x%x > 0x%x reduce it to 0x%x\n",
- reg, AT91_SHDW_CPTWK0_MAX, AT91_SHDW_CPTWK0_MAX);
- reg = AT91_SHDW_CPTWK0_MAX;
- }
- mode |= AT91_SHDW_CPTWK0_(reg);
- }
-
- if (of_property_read_bool(np, "atmel,wakeup-rtc-timer"))
- mode |= AT91_SHDW_RTCWKEN;
-
- if (of_property_read_bool(np, "atmel,wakeup-rtt-timer"))
- mode |= AT91_SHDW_RTTWKEN;
-
- at91_shdwc_write(AT91_SHDW_MR, wakeup_mode | mode);
-
-end:
- pm_power_off = at91sam9_poweroff;
-
- of_node_put(np);
-}
-
void __init at91rm9200_dt_initialize(void)
{
at91_dt_ramc();
@@ -482,7 +406,6 @@ void __init at91rm9200_dt_initialize(void)
void __init at91_dt_initialize(void)
{
at91_dt_ramc();
- at91_dt_shdwc();
/* Init clock subsystem */
at91_dt_clock_init();