[PATCH 0/3] J7200: Add support for HS400 speed mode
The following series of patches add support for HS400 speed mode on J7200 SoC.
For HS400 support to work, the following series of patches depend on, https://patchwork.ozlabs.org/project/uboot/patch/20210405144428.12159-1-a-go...
Aswath Govindraju (3): mmc: sdhci_am654: Read ti,strobe-sel property from device tree arm: dts: k3-j7200-main: Add support for HS400 and update delay select values for MMCSD subsystems configs: j7200_evm_*_defconfig: Enable configs for HS400 support
arch/arm/dts/k3-j7200-main.dtsi | 11 ++++++++++- configs/j7200_evm_a72_defconfig | 4 ++-- configs/j7200_evm_r5_defconfig | 2 +- drivers/mmc/am654_sdhci.c | 1 + 4 files changed, 14 insertions(+), 4 deletions(-)
Read the strobe select value from the device tree property ti,strobe-sel, required for HS400 speed mode
Fixes: a20008eabd95 ("mmc: am654_sdhci: Add Support for configuring PHY in J721e") Signed-off-by: Aswath Govindraju a-govindraju@ti.com --- drivers/mmc/am654_sdhci.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/mmc/am654_sdhci.c b/drivers/mmc/am654_sdhci.c index a86d96aacd2b..4305967d7845 100644 --- a/drivers/mmc/am654_sdhci.c +++ b/drivers/mmc/am654_sdhci.c @@ -619,6 +619,7 @@ static int am654_sdhci_of_to_plat(struct udevice *dev) } }
+ dev_read_u32(dev, "ti,strobe-sel", &plat->strb_sel); dev_read_u32(dev, "ti,clkbuf-sel", &plat->clkbuf_sel);
ret = mmc_of_parse(dev, cfg);
On 5/25/21 6:38 PM, Aswath Govindraju wrote:
Read the strobe select value from the device tree property ti,strobe-sel, required for HS400 speed mode
Fixes: a20008eabd95 ("mmc: am654_sdhci: Add Support for configuring PHY in J721e") Signed-off-by: Aswath Govindraju a-govindraju@ti.com
Reviewed-by: Jaehoon Chung jh80.chung@samsung.com
Best Regards, Jaehoon Chung
drivers/mmc/am654_sdhci.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/mmc/am654_sdhci.c b/drivers/mmc/am654_sdhci.c index a86d96aacd2b..4305967d7845 100644 --- a/drivers/mmc/am654_sdhci.c +++ b/drivers/mmc/am654_sdhci.c @@ -619,6 +619,7 @@ static int am654_sdhci_of_to_plat(struct udevice *dev) } }
dev_read_u32(dev, "ti,strobe-sel", &plat->strb_sel); dev_read_u32(dev, "ti,clkbuf-sel", &plat->clkbuf_sel);
ret = mmc_of_parse(dev, cfg);
HS400 speed mode is now supported in J7200 SoC[1]. Therefore add mmc-hs400-1_8v tag in sdhci0 device tree node.
Also update the delay values for various speed modes supported, based on the revised january 2021 J7200 datasheet[2].
[1] - section 12.3.6.1.1 MMCSD Features, in https://www.ti.com/lit/ug/spruiu1a/spruiu1a.pdf, (SPRUIU1A – JULY 2020 – REVISED JANUARY 2021)
[2] - https://www.ti.com/lit/ds/symlink/dra821u.pdf, (SPRSP57B – APRIL 2020 – REVISED JANUARY 2021)
Signed-off-by: Aswath Govindraju a-govindraju@ti.com --- arch/arm/dts/k3-j7200-main.dtsi | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/arch/arm/dts/k3-j7200-main.dtsi b/arch/arm/dts/k3-j7200-main.dtsi index 11314640750d..ae4f7896ef4b 100644 --- a/arch/arm/dts/k3-j7200-main.dtsi +++ b/arch/arm/dts/k3-j7200-main.dtsi @@ -428,10 +428,14 @@ ti,otap-del-sel-mmc-hs = <0x0>; ti,otap-del-sel-ddr52 = <0x6>; ti,otap-del-sel-hs200 = <0x8>; - ti,otap-del-sel-hs400 = <0x0>; + ti,otap-del-sel-hs400 = <0x5>; + ti,itap-del-sel-legacy = <0x10>; + ti,itap-del-sel-mmc-hs = <0xa>; ti,strobe-sel = <0x77>; + ti,clkbuf-sel = <0x7>; ti,trm-icp = <0x8>; bus-width = <8>; + mmc-hs400-1_8v; mmc-hs200-1_8v; mmc-ddr-1_8v; dma-coherent; @@ -451,7 +455,12 @@ ti,otap-del-sel-sdr50 = <0xc>; ti,otap-del-sel-sdr104 = <0x5>; ti,otap-del-sel-ddr50 = <0xc>; + ti,itap-del-sel-legacy = <0x0>; + ti,itap-del-sel-sd-hs = <0x0>; + ti,itap-del-sel-sdr12 = <0x0>; + ti,itap-del-sel-sdr25 = <0x0>; ti,clkbuf-sel = <0x7>; + ti,trm-icp = <0x8>; dma-coherent; };
Enable configs to add support for HS400 speed mode.
Signed-off-by: Aswath Govindraju a-govindraju@ti.com --- configs/j7200_evm_a72_defconfig | 4 ++-- configs/j7200_evm_r5_defconfig | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/configs/j7200_evm_a72_defconfig b/configs/j7200_evm_a72_defconfig index b204c7a73e98..1ceba8b52513 100644 --- a/configs/j7200_evm_a72_defconfig +++ b/configs/j7200_evm_a72_defconfig @@ -118,8 +118,8 @@ CONFIG_K3_SEC_PROXY=y CONFIG_SUPPORT_EMMC_BOOT=y CONFIG_MMC_IO_VOLTAGE=y CONFIG_MMC_UHS_SUPPORT=y -CONFIG_MMC_HS200_SUPPORT=y -CONFIG_SPL_MMC_HS200_SUPPORT=y +CONFIG_MMC_HS400_SUPPORT=y +CONFIG_SPL_MMC_HS400_SUPPORT=y CONFIG_MMC_SDHCI=y CONFIG_MMC_SDHCI_ADMA=y CONFIG_SPL_MMC_SDHCI_ADMA=y diff --git a/configs/j7200_evm_r5_defconfig b/configs/j7200_evm_r5_defconfig index 08fad3e04b18..96394d5d54d3 100644 --- a/configs/j7200_evm_r5_defconfig +++ b/configs/j7200_evm_r5_defconfig @@ -88,7 +88,7 @@ CONFIG_DM_MAILBOX=y CONFIG_K3_SEC_PROXY=y CONFIG_FS_LOADER=y CONFIG_SUPPORT_EMMC_BOOT=y -CONFIG_SPL_MMC_HS200_SUPPORT=y +CONFIG_SPL_MMC_HS400_SUPPORT=y CONFIG_MMC_SDHCI=y CONFIG_SPL_MMC_SDHCI_ADMA=y CONFIG_MMC_SDHCI_AM654=y
On 25/05/21 3:08 pm, Aswath Govindraju wrote:
The following series of patches add support for HS400 speed mode on J7200 SoC.
For HS400 support to work, the following series of patches depend on, https://patchwork.ozlabs.org/project/uboot/patch/20210405144428.12159-1-a-go...
Can you ping me once the above patch is merged?
Thanks and regards, Lokesh
On Tue, 25 May 2021 15:08:22 +0530, Aswath Govindraju wrote:
The following series of patches add support for HS400 speed mode on J7200 SoC.
For HS400 support to work, the following series of patches depend on, https://patchwork.ozlabs.org/project/uboot/patch/20210405144428.12159-1-a-go...
Aswath Govindraju (3): mmc: sdhci_am654: Read ti,strobe-sel property from device tree arm: dts: k3-j7200-main: Add support for HS400 and update delay select values for MMCSD subsystems configs: j7200_evm_*_defconfig: Enable configs for HS400 support
[...]
Applied to https://source.denx.de/u-boot/custodians/u-boot-ti.git for-rc, thanks! [1/3] mmc: sdhci_am654: Read ti, strobe-sel property from device tree https://source.denx.de/u-boot/custodians/u-boot-ti/-/commit/46077ef251 [2/3] arm: dts: k3-j7200-main: Add support for HS400 and update delay select values for MMCSD subsystems https://source.denx.de/u-boot/custodians/u-boot-ti/-/commit/455f9dddc8 [3/3] configs: j7200_evm_*_defconfig: Enable configs for HS400 support https://source.denx.de/u-boot/custodians/u-boot-ti/-/commit/f490d359d7
-- Thanks and Regards, Lokesh
participants (3)
-
Aswath Govindraju -
Jaehoon Chung -
Lokesh Vutla