@@ -109,50 +109,23 @@ static struct platform_device ts78xx_ts_rtc_device = {
.num_resources = 0,
};
-/*
- * TS uses some of the user storage space on the RTC chip so see if it is
- * present; as it's an optional feature at purchase time and not all boards
- * will have it present
- *
- * I've used the method TS use in their rtc7800.c example for the detection
- *
- * TODO: track down a guinea pig without an RTC to see if we can work out a
- * better RTC detection routine
- */
static int ts78xx_ts_rtc_load(void)
{
int rc;
- unsigned char tmp_rtc0, tmp_rtc1;
-
- tmp_rtc0 = ts78xx_ts_rtc_readbyte(126);
- tmp_rtc1 = ts78xx_ts_rtc_readbyte(127);
-
- ts78xx_ts_rtc_writebyte(0x00, 126);
- ts78xx_ts_rtc_writebyte(0x55, 127);
- if (ts78xx_ts_rtc_readbyte(127) == 0x55) {
- ts78xx_ts_rtc_writebyte(0xaa, 127);
- if (ts78xx_ts_rtc_readbyte(127) == 0xaa
- && ts78xx_ts_rtc_readbyte(126) == 0x00) {
- ts78xx_ts_rtc_writebyte(tmp_rtc0, 126);
- ts78xx_ts_rtc_writebyte(tmp_rtc1, 127);
-
- if (ts78xx_fpga.supports.ts_rtc.init == 0) {
- rc = platform_device_register(&ts78xx_ts_rtc_device);
- if (!rc)
- ts78xx_fpga.supports.ts_rtc.init = 1;
- } else
- rc = platform_device_add(&ts78xx_ts_rtc_device);
-
- if (rc)
- pr_info("RTC could not be registered: %d\n",
- rc);
- return rc;
- }
+
+ if (ts78xx_fpga.supports.ts_rtc.init == 0) {
+ rc = platform_device_register(&ts78xx_ts_rtc_device);
+ if (!rc)
+ ts78xx_fpga.supports.ts_rtc.init = 1;
+ } else {
+ rc = platform_device_add(&ts78xx_ts_rtc_device);
}
- pr_info("RTC not found\n");
- return -ENODEV;
-};
+ if (rc)
+ pr_info("RTC could not be registered: %d\n", rc);
+
+ return rc;
+}
static void ts78xx_ts_rtc_unload(void)
{
The rtc-m48t86 driver now handles the RTC detection. Remove the redundant code from the platform. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: Alexander Clouter <alex@digriz.org.uk> --- arch/arm/mach-orion5x/ts78xx-setup.c | 51 +++++++++--------------------------- 1 file changed, 12 insertions(+), 39 deletions(-)