From 93f8a31186c9ff65aaf0dcf5410976df5d269c46 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Wed, 15 Jul 2015 16:23:39 +0800 Subject: [PATCH] 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 Acked-by: Simon Glass (Squashed in 'x86: Fix RTC build error on ivybridge') --- arch/x86/cpu/ivybridge/lpc.c | 1 - arch/x86/cpu/ivybridge/sdram.c | 32 +++++++++++++++++++++-------- arch/x86/dts/chromebook_link.dts | 1 + arch/x86/dts/chromebox_panther.dts | 1 + arch/x86/dts/galileo.dts | 1 + arch/x86/dts/minnowmax.dts | 1 + arch/x86/dts/qemu-x86_i440fx.dts | 1 + arch/x86/dts/qemu-x86_q35.dts | 1 + arch/x86/dts/rtc.dtsi | 1 + configs/chromebook_link_defconfig | 1 + configs/chromebox_panther_defconfig | 1 + configs/galileo_defconfig | 1 + configs/minnowmax_defconfig | 1 + configs/qemu-x86_defconfig | 1 + 14 files changed, 36 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 /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>; }; }; diff --git a/configs/chromebook_link_defconfig b/configs/chromebook_link_defconfig index 9931d65dc2..e394dab719 100644 --- a/configs/chromebook_link_defconfig +++ b/configs/chromebook_link_defconfig @@ -17,5 +17,6 @@ CONFIG_SPI_FLASH=y CONFIG_VIDEO_VESA=y CONFIG_FRAMEBUFFER_SET_VESA_MODE=y CONFIG_FRAMEBUFFER_VESA_MODE_11A=y +CONFIG_DM_RTC=y CONFIG_USE_PRIVATE_LIBGCC=y CONFIG_SYS_VSNPRINTF=y diff --git a/configs/chromebox_panther_defconfig b/configs/chromebox_panther_defconfig index b3a5f28be9..340510f71a 100644 --- a/configs/chromebox_panther_defconfig +++ b/configs/chromebox_panther_defconfig @@ -17,5 +17,6 @@ CONFIG_SPI_FLASH=y CONFIG_VIDEO_VESA=y CONFIG_FRAMEBUFFER_SET_VESA_MODE=y CONFIG_FRAMEBUFFER_VESA_MODE_11A=y +CONFIG_DM_RTC=y CONFIG_USE_PRIVATE_LIBGCC=y CONFIG_SYS_VSNPRINTF=y diff --git a/configs/galileo_defconfig b/configs/galileo_defconfig index 1ced47e7b8..3f80483aef 100644 --- a/configs/galileo_defconfig +++ b/configs/galileo_defconfig @@ -15,5 +15,6 @@ CONFIG_SPL_DISABLE_OF_CONTROL=y CONFIG_SPI_FLASH=y CONFIG_NETDEVICES=y CONFIG_ETH_DESIGNWARE=y +CONFIG_DM_RTC=y CONFIG_USE_PRIVATE_LIBGCC=y CONFIG_SYS_VSNPRINTF=y diff --git a/configs/minnowmax_defconfig b/configs/minnowmax_defconfig index 29dd44b400..e98f5eb5ce 100644 --- a/configs/minnowmax_defconfig +++ b/configs/minnowmax_defconfig @@ -21,5 +21,6 @@ CONFIG_SPI_FLASH=y CONFIG_VIDEO_VESA=y CONFIG_FRAMEBUFFER_SET_VESA_MODE=y CONFIG_FRAMEBUFFER_VESA_MODE_11A=y +CONFIG_DM_RTC=y CONFIG_USE_PRIVATE_LIBGCC=y CONFIG_SYS_VSNPRINTF=y diff --git a/configs/qemu-x86_defconfig b/configs/qemu-x86_defconfig index 5639cc5b15..a4c20bd4f1 100644 --- a/configs/qemu-x86_defconfig +++ b/configs/qemu-x86_defconfig @@ -13,5 +13,6 @@ CONFIG_SPI_FLASH=y CONFIG_VIDEO_VESA=y CONFIG_FRAMEBUFFER_SET_VESA_MODE=y CONFIG_FRAMEBUFFER_VESA_MODE_111=y +CONFIG_DM_RTC=y CONFIG_USE_PRIVATE_LIBGCC=y CONFIG_SYS_VSNPRINTF=y -- 2.30.2