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authorBin Meng <bmeng.cn@gmail.com>2015-07-15 16:23:39 +0800
committerSimon Glass <sjg@chromium.org>2015-07-28 10:36:22 -0600
commit93f8a31186c9ff65aaf0dcf5410976df5d269c46 (patch)
tree07c2afb462b5f57cb28dc1c89c50d9b16ef194db /arch
parent8ba25eec868aa40a42360397ec57f74fcaec3103 (diff)
x86: Enable DM RTC support for all x86 boards
Add a RTC node in the device tree to enable DM RTC support. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> (Squashed in 'x86: Fix RTC build error on ivybridge')
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/cpu/ivybridge/lpc.c1
-rw-r--r--arch/x86/cpu/ivybridge/sdram.c32
-rw-r--r--arch/x86/dts/chromebook_link.dts1
-rw-r--r--arch/x86/dts/chromebox_panther.dts1
-rw-r--r--arch/x86/dts/galileo.dts1
-rw-r--r--arch/x86/dts/minnowmax.dts1
-rw-r--r--arch/x86/dts/qemu-x86_i440fx.dts1
-rw-r--r--arch/x86/dts/qemu-x86_q35.dts1
-rw-r--r--arch/x86/dts/rtc.dtsi1
9 files changed, 31 insertions, 9 deletions
diff --git a/arch/x86/cpu/ivybridge/lpc.c b/arch/x86/cpu/ivybridge/lpc.c
index bc1a0f06fb..3efd3e841f 100644
--- a/arch/x86/cpu/ivybridge/lpc.c
+++ b/arch/x86/cpu/ivybridge/lpc.c
@@ -252,7 +252,6 @@ static void pch_rtc_init(pci_dev_t dev)
/* TODO: Handle power failure */
if (rtc_failed)
printf("RTC power failed\n");
- rtc_init();
}
/* CougarPoint PCH Power Management init */
diff --git a/arch/x86/cpu/ivybridge/sdram.c b/arch/x86/cpu/ivybridge/sdram.c
index af907c5b9b..7f3b13d357 100644
--- a/arch/x86/cpu/ivybridge/sdram.c
+++ b/arch/x86/cpu/ivybridge/sdram.c
@@ -128,6 +128,14 @@ static int get_mrc_entry(struct udevice **devp, struct fmap_entry *entry)
static int read_seed_from_cmos(struct pei_data *pei_data)
{
u16 c1, c2, checksum, seed_checksum;
+ struct udevice *dev;
+ int rcode = 0;
+
+ rcode = uclass_get_device(UCLASS_RTC, 0, &dev);
+ if (rcode) {
+ debug("Cannot find RTC: err=%d\n", rcode);
+ return -ENODEV;
+ }
/*
* Read scrambler seeds from CMOS RAM. We don't want to store them in
@@ -135,11 +143,11 @@ static int read_seed_from_cmos(struct pei_data *pei_data)
* the flash too much. So we store these in CMOS and the large MRC
* data in SPI flash.
*/
- pei_data->scrambler_seed = rtc_read32(CMOS_OFFSET_MRC_SEED);
+ rtc_read32(dev, CMOS_OFFSET_MRC_SEED, &pei_data->scrambler_seed);
debug("Read scrambler seed 0x%08x from CMOS 0x%02x\n",
pei_data->scrambler_seed, CMOS_OFFSET_MRC_SEED);
- pei_data->scrambler_seed_s3 = rtc_read32(CMOS_OFFSET_MRC_SEED_S3);
+ rtc_read32(dev, CMOS_OFFSET_MRC_SEED_S3, &pei_data->scrambler_seed_s3);
debug("Read S3 scrambler seed 0x%08x from CMOS 0x%02x\n",
pei_data->scrambler_seed_s3, CMOS_OFFSET_MRC_SEED_S3);
@@ -150,8 +158,8 @@ static int read_seed_from_cmos(struct pei_data *pei_data)
sizeof(u32));
checksum = add_ip_checksums(sizeof(u32), c1, c2);
- seed_checksum = rtc_read8(CMOS_OFFSET_MRC_SEED_CHK);
- seed_checksum |= rtc_read8(CMOS_OFFSET_MRC_SEED_CHK + 1) << 8;
+ seed_checksum = rtc_read8(dev, CMOS_OFFSET_MRC_SEED_CHK);
+ seed_checksum |= rtc_read8(dev, CMOS_OFFSET_MRC_SEED_CHK + 1) << 8;
if (checksum != seed_checksum) {
debug("%s: invalid seed checksum\n", __func__);
@@ -223,13 +231,21 @@ static int build_mrc_data(struct mrc_data_container **datap)
static int write_seeds_to_cmos(struct pei_data *pei_data)
{
u16 c1, c2, checksum;
+ struct udevice *dev;
+ int rcode = 0;
+
+ rcode = uclass_get_device(UCLASS_RTC, 0, &dev);
+ if (rcode) {
+ debug("Cannot find RTC: err=%d\n", rcode);
+ return -ENODEV;
+ }
/* Save the MRC seed values to CMOS */
- rtc_write32(CMOS_OFFSET_MRC_SEED, pei_data->scrambler_seed);
+ rtc_write32(dev, CMOS_OFFSET_MRC_SEED, pei_data->scrambler_seed);
debug("Save scrambler seed 0x%08x to CMOS 0x%02x\n",
pei_data->scrambler_seed, CMOS_OFFSET_MRC_SEED);
- rtc_write32(CMOS_OFFSET_MRC_SEED_S3, pei_data->scrambler_seed_s3);
+ rtc_write32(dev, CMOS_OFFSET_MRC_SEED_S3, pei_data->scrambler_seed_s3);
debug("Save s3 scrambler seed 0x%08x to CMOS 0x%02x\n",
pei_data->scrambler_seed_s3, CMOS_OFFSET_MRC_SEED_S3);
@@ -240,8 +256,8 @@ static int write_seeds_to_cmos(struct pei_data *pei_data)
sizeof(u32));
checksum = add_ip_checksums(sizeof(u32), c1, c2);
- rtc_write8(CMOS_OFFSET_MRC_SEED_CHK, checksum & 0xff);
- rtc_write8(CMOS_OFFSET_MRC_SEED_CHK + 1, (checksum >> 8) & 0xff);
+ rtc_write8(dev, CMOS_OFFSET_MRC_SEED_CHK, checksum & 0xff);
+ rtc_write8(dev, CMOS_OFFSET_MRC_SEED_CHK + 1, (checksum >> 8) & 0xff);
return 0;
}
diff --git a/arch/x86/dts/chromebook_link.dts b/arch/x86/dts/chromebook_link.dts
index 7c7034c7eb..ad390bf117 100644
--- a/arch/x86/dts/chromebook_link.dts
+++ b/arch/x86/dts/chromebook_link.dts
@@ -2,6 +2,7 @@
/include/ "skeleton.dtsi"
/include/ "serial.dtsi"
+/include/ "rtc.dtsi"
/ {
model = "Google Link";
diff --git a/arch/x86/dts/chromebox_panther.dts b/arch/x86/dts/chromebox_panther.dts
index 4eccefdb8c..84eae3ab65 100644
--- a/arch/x86/dts/chromebox_panther.dts
+++ b/arch/x86/dts/chromebox_panther.dts
@@ -2,6 +2,7 @@
/include/ "skeleton.dtsi"
/include/ "serial.dtsi"
+/include/ "rtc.dtsi"
/ {
model = "Google Panther";
diff --git a/arch/x86/dts/galileo.dts b/arch/x86/dts/galileo.dts
index 2ba081e9dc..d77ff8ad55 100644
--- a/arch/x86/dts/galileo.dts
+++ b/arch/x86/dts/galileo.dts
@@ -10,6 +10,7 @@
#include <dt-bindings/interrupt-router/intel-irq.h>
/include/ "skeleton.dtsi"
+/include/ "rtc.dtsi"
/ {
model = "Intel Galileo";
diff --git a/arch/x86/dts/minnowmax.dts b/arch/x86/dts/minnowmax.dts
index 0e59b18d34..9527233d7f 100644
--- a/arch/x86/dts/minnowmax.dts
+++ b/arch/x86/dts/minnowmax.dts
@@ -10,6 +10,7 @@
/include/ "skeleton.dtsi"
/include/ "serial.dtsi"
+/include/ "rtc.dtsi"
/ {
model = "Intel Minnowboard Max";
diff --git a/arch/x86/dts/qemu-x86_i440fx.dts b/arch/x86/dts/qemu-x86_i440fx.dts
index 557428a459..0c522c860f 100644
--- a/arch/x86/dts/qemu-x86_i440fx.dts
+++ b/arch/x86/dts/qemu-x86_i440fx.dts
@@ -10,6 +10,7 @@
/include/ "skeleton.dtsi"
/include/ "serial.dtsi"
+/include/ "rtc.dtsi"
/ {
model = "QEMU x86 (I440FX)";
diff --git a/arch/x86/dts/qemu-x86_q35.dts b/arch/x86/dts/qemu-x86_q35.dts
index c259f2a3d2..5fbabc2f3c 100644
--- a/arch/x86/dts/qemu-x86_q35.dts
+++ b/arch/x86/dts/qemu-x86_q35.dts
@@ -20,6 +20,7 @@
/include/ "skeleton.dtsi"
/include/ "serial.dtsi"
+/include/ "rtc.dtsi"
/ {
model = "QEMU x86 (Q35)";
diff --git a/arch/x86/dts/rtc.dtsi b/arch/x86/dts/rtc.dtsi
index 93dacd7307..1797e042da 100644
--- a/arch/x86/dts/rtc.dtsi
+++ b/arch/x86/dts/rtc.dtsi
@@ -1,6 +1,7 @@
/ {
rtc {
compatible = "motorola,mc146818";
+ u-boot,dm-pre-reloc;
reg = <0x70 2>;
};
};