[PATCH 4/8] sunxi: Convert H616 DRAM options to single setting
Jernej Škrabec
jernej.skrabec at gmail.com
Tue Dec 13 17:23:12 CET 2022
Hi,
Dne ponedeljek, 12. december 2022 ob 18:50:44 CET je Andre Przywara
napisal(a):
> On Sun, 11 Dec 2022 17:32:09 +0100
> Jernej Skrabec <jernej.skrabec at gmail.com> wrote:
>
> Hi,
>
> > Vendor DRAM settings use TPR10 parameter to enable various features.
> > There are many mores features that just those that are currently
> > mentioned. Since new will be added later and most are not known, let's
> > reuse value from vendor DRAM driver as-is. This will also help adding
> > support for new boards.
>
> Looks good. I checked that the actual code in
> mctl_phy_bit_delay_compensation() just gets indented (no real changes), and
> is now guarded by the new checks.
> The values in the _defconfig still result in the same decisions, though
> many are blocked anyway by no one actually calling that bit_delay function
> at all. (I wonder what happens when we enable it?)
I'm not sure I understand. Bit delay compensation should be enabled for X96
Mate, according to values you send in previous e-mail. In any case, DRAM
configuration looks like a black magic at times, so I would rather stick to
vendor procedure, especially due to missing register documentation, and not
just randomly enable things which sounds nice. I tried enabling unused
procedures for T95 and either they didn't went through or amount of detected
RAM was lower than presetn.
> One small thing below.
>
> > Signed-off-by: Jernej Skrabec <jernej.skrabec at gmail.com>
> > ---
> >
> > .../include/asm/arch-sunxi/dram_sun50i_h616.h | 10 +
> > arch/arm/mach-sunxi/Kconfig | 38 +---
> > arch/arm/mach-sunxi/dram_sun50i_h616.c | 197 +++++++++---------
> > configs/orangepi_zero2_defconfig | 5 +-
> > 4 files changed, 117 insertions(+), 133 deletions(-)
> >
> > diff --git a/arch/arm/include/asm/arch-sunxi/dram_sun50i_h616.h
> > b/arch/arm/include/asm/arch-sunxi/dram_sun50i_h616.h index
> > c9e1f84bfcdd..b5140c79b70e 100644
> > --- a/arch/arm/include/asm/arch-sunxi/dram_sun50i_h616.h
> > +++ b/arch/arm/include/asm/arch-sunxi/dram_sun50i_h616.h
> > @@ -137,6 +137,15 @@ check_member(sunxi_mctl_ctl_reg, unk_0x4240, 0x4240);
> >
> > #define MSTR_ACTIVE_RANKS(x) (((x == 2) ? 3 : 1) << 24)
> > #define MSTR_BURST_LENGTH(x) (((x) >> 1) << 16)
> >
> > +/* TODO: figure out what unknown features do */
> > +#define TPR10_UNKNOWN_FEAT0 BIT(16)
> > +#define TPR10_UNKNOWN_FEAT1 BIT(17)
> > +#define TPR10_UNKNOWN_FEAT2 BIT(18)
>
> Could you just put the bit number in the macro? Like TPR10_BIT16? That
> both avoids inventing meaningless names, and helps readers to correlate
> code more easily. Or skip the symbol altogether for those and use just
> "BIT(16)" in the code.
I actually know what these are for now, so I can give much better names.
However, I still don't know what TPR10_UNKNOWN_FEAT3 does, which is in the
last commit, so I'll rework that one to use BIT(30) directly.
Best regards,
Jernej
>
> Cheers,
> Andre
>
> > +#define TPR10_WRITE_LEVELING BIT(20)
> > +#define TPR10_READ_CALIBRATION BIT(21)
> > +#define TPR10_READ_TRAINING BIT(22)
> > +#define TPR10_WRITE_TRAINING BIT(23)
> > +
> >
> > struct dram_para {
> >
> > u32 clk;
> > enum sunxi_dram_type type;
> >
> > @@ -147,6 +156,7 @@ struct dram_para {
> >
> > u32 dx_odt;
> > u32 dx_dri;
> > u32 ca_dri;
> >
> > + u32 tpr10;
> >
> > };
> >
> > diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
> > index cad53f19912c..abcbd0fb9061 100644
> > --- a/arch/arm/mach-sunxi/Kconfig
> > +++ b/arch/arm/mach-sunxi/Kconfig
> > @@ -52,38 +52,6 @@ config DRAM_SUN50I_H616
> >
> > like H616.
> >
> > if DRAM_SUN50I_H616
> >
> > -config DRAM_SUN50I_H616_WRITE_LEVELING
> > - bool "H616 DRAM write leveling"
> > - ---help---
> > - Select this when DRAM on your H616 board needs write leveling.
> > -
> > -config DRAM_SUN50I_H616_READ_CALIBRATION
> > - bool "H616 DRAM read calibration"
> > - ---help---
> > - Select this when DRAM on your H616 board needs read
calibration.
> > -
> > -config DRAM_SUN50I_H616_READ_TRAINING
> > - bool "H616 DRAM read training"
> > - ---help---
> > - Select this when DRAM on your H616 board needs read training.
> > -
> > -config DRAM_SUN50I_H616_WRITE_TRAINING
> > - bool "H616 DRAM write training"
> > - ---help---
> > - Select this when DRAM on your H616 board needs write training.
> > -
> > -config DRAM_SUN50I_H616_BIT_DELAY_COMPENSATION
> > - bool "H616 DRAM bit delay compensation"
> > - ---help---
> > - Select this when DRAM on your H616 board needs bit delay
> > - compensation.
> > -
> > -config DRAM_SUN50I_H616_UNKNOWN_FEATURE
> > - bool "H616 DRAM unknown feature"
> > - ---help---
> > - Select this when DRAM on your H616 board needs this unknown
> > - feature.
> > -
> >
> > config DRAM_SUN50I_H616_DX_ODT
> >
> > hex "H616 DRAM DX ODT parameter"
> > help
> >
> > @@ -98,6 +66,12 @@ config DRAM_SUN50I_H616_CA_DRI
> >
> > hex "H616 DRAM CA DRI parameter"
> > help
> >
> > CA DRI value from vendor DRAM settings.
> >
> > +
> > +config DRAM_SUN50I_H616_TPR10
> > + hex "H616 DRAM TPR10 parameter"
> > + help
> > + TPR10 value from vendor DRAM settings. It tells which features
> > + should be configured, like write leveling, read calibration, etc.
> >
> > endif
> >
> > config SUN6I_PRCM
> >
> > diff --git a/arch/arm/mach-sunxi/dram_sun50i_h616.c
> > b/arch/arm/mach-sunxi/dram_sun50i_h616.c index 06a07dfbf9cc..14a01a3c4e54
> > 100644
> > --- a/arch/arm/mach-sunxi/dram_sun50i_h616.c
> > +++ b/arch/arm/mach-sunxi/dram_sun50i_h616.c
> > @@ -577,109 +577,112 @@ static bool mctl_phy_bit_delay_compensation(struct
> > dram_para *para)>
> > u32 *ptr;
> > int i;
> >
> > - clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x60, 1);
> > - setbits_le32(SUNXI_DRAM_PHY0_BASE + 8, 8);
> > - clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x190, 0x10);
> > + if (para->tpr10 & TPR10_UNKNOWN_FEAT2) {
> > + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x60, 1);
> > + setbits_le32(SUNXI_DRAM_PHY0_BASE + 8, 8);
> > + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x190, 0x10);
> >
> > - ptr = (u32 *)(SUNXI_DRAM_PHY0_BASE + 0x484);
> > - for (i = 0; i < 9; i++) {
> > - writel_relaxed(0x16, ptr);
> > - writel_relaxed(0x16, ptr + 0x30);
> > - ptr += 2;
> > - }
> > - writel_relaxed(0x1c, SUNXI_DRAM_PHY0_BASE + 0x4d0);
> > - writel_relaxed(0x1c, SUNXI_DRAM_PHY0_BASE + 0x590);
> > - writel_relaxed(0x1c, SUNXI_DRAM_PHY0_BASE + 0x4cc);
> > - writel_relaxed(0x1c, SUNXI_DRAM_PHY0_BASE + 0x58c);
> > + ptr = (u32 *)(SUNXI_DRAM_PHY0_BASE + 0x484);
> > + for (i = 0; i < 9; i++) {
> > + writel_relaxed(0x16, ptr);
> > + writel_relaxed(0x16, ptr + 0x30);
> > + ptr += 2;
> > + }
> > + writel_relaxed(0x1c, SUNXI_DRAM_PHY0_BASE + 0x4d0);
> > + writel_relaxed(0x1c, SUNXI_DRAM_PHY0_BASE + 0x590);
> > + writel_relaxed(0x1c, SUNXI_DRAM_PHY0_BASE + 0x4cc);
> > + writel_relaxed(0x1c, SUNXI_DRAM_PHY0_BASE + 0x58c);
> >
> > - ptr = (u32 *)(SUNXI_DRAM_PHY0_BASE + 0x4d8);
> > - for (i = 0; i < 9; i++) {
> > - writel_relaxed(0x1a, ptr);
> > - writel_relaxed(0x1a, ptr + 0x30);
> > - ptr += 2;
> > - }
> > - writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x524);
> > - writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x5e4);
> > - writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x520);
> > - writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x5e0);
> > + ptr = (u32 *)(SUNXI_DRAM_PHY0_BASE + 0x4d8);
> > + for (i = 0; i < 9; i++) {
> > + writel_relaxed(0x1a, ptr);
> > + writel_relaxed(0x1a, ptr + 0x30);
> > + ptr += 2;
> > + }
> > + writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x524);
> > + writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x5e4);
> > + writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x520);
> > + writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x5e0);
> >
> > - ptr = (u32 *)(SUNXI_DRAM_PHY0_BASE + 0x604);
> > - for (i = 0; i < 9; i++) {
> > - writel_relaxed(0x1a, ptr);
> > - writel_relaxed(0x1a, ptr + 0x30);
> > - ptr += 2;
> > - }
> > - writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x650);
> > - writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x710);
> > - writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x64c);
> > - writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x70c);
> > + ptr = (u32 *)(SUNXI_DRAM_PHY0_BASE + 0x604);
> > + for (i = 0; i < 9; i++) {
> > + writel_relaxed(0x1a, ptr);
> > + writel_relaxed(0x1a, ptr + 0x30);
> > + ptr += 2;
> > + }
> > + writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x650);
> > + writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x710);
> > + writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x64c);
> > + writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x70c);
> >
> > - ptr = (u32 *)(SUNXI_DRAM_PHY0_BASE + 0x658);
> > - for (i = 0; i < 9; i++) {
> > - writel_relaxed(0x1a, ptr);
> > - writel_relaxed(0x1a, ptr + 0x30);
> > - ptr += 2;
> > - }
> > - writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x6a4);
> > - writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x764);
> > - writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x6a0);
> > - writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x760);
> > + ptr = (u32 *)(SUNXI_DRAM_PHY0_BASE + 0x658);
> > + for (i = 0; i < 9; i++) {
> > + writel_relaxed(0x1a, ptr);
> > + writel_relaxed(0x1a, ptr + 0x30);
> > + ptr += 2;
> > + }
> > + writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x6a4);
> > + writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x764);
> > + writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x6a0);
> > + writel_relaxed(0x1e, SUNXI_DRAM_PHY0_BASE + 0x760);
> >
> > - dmb();
> > + dmb();
> >
> > - setbits_le32(SUNXI_DRAM_PHY0_BASE + 0x60, 1);
> > + setbits_le32(SUNXI_DRAM_PHY0_BASE + 0x60, 1);
> > + }
> >
> > - /* second part */
> > - clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x54, 0x80);
> > - clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x190, 4);
> > + if (para->tpr10 & TPR10_UNKNOWN_FEAT1) {
> > + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x54, 0x80);
> > + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x190, 4);
> >
> > - ptr = (u32 *)(SUNXI_DRAM_PHY0_BASE + 0x480);
> > - for (i = 0; i < 9; i++) {
> > - writel_relaxed(0x10, ptr);
> > - writel_relaxed(0x10, ptr + 0x30);
> > - ptr += 2;
> > - }
> > - writel_relaxed(0x18, SUNXI_DRAM_PHY0_BASE + 0x528);
> > - writel_relaxed(0x18, SUNXI_DRAM_PHY0_BASE + 0x5e8);
> > - writel_relaxed(0x18, SUNXI_DRAM_PHY0_BASE + 0x4c8);
> > - writel_relaxed(0x18, SUNXI_DRAM_PHY0_BASE + 0x588);
> > + ptr = (u32 *)(SUNXI_DRAM_PHY0_BASE + 0x480);
> > + for (i = 0; i < 9; i++) {
> > + writel_relaxed(0x10, ptr);
> > + writel_relaxed(0x10, ptr + 0x30);
> > + ptr += 2;
> > + }
> > + writel_relaxed(0x18, SUNXI_DRAM_PHY0_BASE + 0x528);
> > + writel_relaxed(0x18, SUNXI_DRAM_PHY0_BASE + 0x5e8);
> > + writel_relaxed(0x18, SUNXI_DRAM_PHY0_BASE + 0x4c8);
> > + writel_relaxed(0x18, SUNXI_DRAM_PHY0_BASE + 0x588);
> >
> > - ptr = (u32 *)(SUNXI_DRAM_PHY0_BASE + 0x4d4);
> > - for (i = 0; i < 9; i++) {
> > - writel_relaxed(0x12, ptr);
> > - writel_relaxed(0x12, ptr + 0x30);
> > - ptr += 2;
> > - }
> > - writel_relaxed(0x1a, SUNXI_DRAM_PHY0_BASE + 0x52c);
> > - writel_relaxed(0x1a, SUNXI_DRAM_PHY0_BASE + 0x5ec);
> > - writel_relaxed(0x1a, SUNXI_DRAM_PHY0_BASE + 0x51c);
> > - writel_relaxed(0x1a, SUNXI_DRAM_PHY0_BASE + 0x5dc);
> > + ptr = (u32 *)(SUNXI_DRAM_PHY0_BASE + 0x4d4);
> > + for (i = 0; i < 9; i++) {
> > + writel_relaxed(0x12, ptr);
> > + writel_relaxed(0x12, ptr + 0x30);
> > + ptr += 2;
> > + }
> > + writel_relaxed(0x1a, SUNXI_DRAM_PHY0_BASE + 0x52c);
> > + writel_relaxed(0x1a, SUNXI_DRAM_PHY0_BASE + 0x5ec);
> > + writel_relaxed(0x1a, SUNXI_DRAM_PHY0_BASE + 0x51c);
> > + writel_relaxed(0x1a, SUNXI_DRAM_PHY0_BASE + 0x5dc);
> >
> > - ptr = (u32 *)(SUNXI_DRAM_PHY0_BASE + 0x600);
> > - for (i = 0; i < 9; i++) {
> > - writel_relaxed(0x12, ptr);
> > - writel_relaxed(0x12, ptr + 0x30);
> > - ptr += 2;
> > - }
> > - writel_relaxed(0x1a, SUNXI_DRAM_PHY0_BASE + 0x6a8);
> > - writel_relaxed(0x1a, SUNXI_DRAM_PHY0_BASE + 0x768);
> > - writel_relaxed(0x1a, SUNXI_DRAM_PHY0_BASE + 0x648);
> > - writel_relaxed(0x1a, SUNXI_DRAM_PHY0_BASE + 0x708);
> > + ptr = (u32 *)(SUNXI_DRAM_PHY0_BASE + 0x600);
> > + for (i = 0; i < 9; i++) {
> > + writel_relaxed(0x12, ptr);
> > + writel_relaxed(0x12, ptr + 0x30);
> > + ptr += 2;
> > + }
> > + writel_relaxed(0x1a, SUNXI_DRAM_PHY0_BASE + 0x6a8);
> > + writel_relaxed(0x1a, SUNXI_DRAM_PHY0_BASE + 0x768);
> > + writel_relaxed(0x1a, SUNXI_DRAM_PHY0_BASE + 0x648);
> > + writel_relaxed(0x1a, SUNXI_DRAM_PHY0_BASE + 0x708);
> >
> > - ptr = (u32 *)(SUNXI_DRAM_PHY0_BASE + 0x654);
> > - for (i = 0; i < 9; i++) {
> > - writel_relaxed(0x14, ptr);
> > - writel_relaxed(0x14, ptr + 0x30);
> > - ptr += 2;
> > - }
> > - writel_relaxed(0x1c, SUNXI_DRAM_PHY0_BASE + 0x6ac);
> > - writel_relaxed(0x1c, SUNXI_DRAM_PHY0_BASE + 0x76c);
> > - writel_relaxed(0x1c, SUNXI_DRAM_PHY0_BASE + 0x69c);
> > - writel_relaxed(0x1c, SUNXI_DRAM_PHY0_BASE + 0x75c);
> > + ptr = (u32 *)(SUNXI_DRAM_PHY0_BASE + 0x654);
> > + for (i = 0; i < 9; i++) {
> > + writel_relaxed(0x14, ptr);
> > + writel_relaxed(0x14, ptr + 0x30);
> > + ptr += 2;
> > + }
> > + writel_relaxed(0x1c, SUNXI_DRAM_PHY0_BASE + 0x6ac);
> > + writel_relaxed(0x1c, SUNXI_DRAM_PHY0_BASE + 0x76c);
> > + writel_relaxed(0x1c, SUNXI_DRAM_PHY0_BASE + 0x69c);
> > + writel_relaxed(0x1c, SUNXI_DRAM_PHY0_BASE + 0x75c);
> >
> > - dmb();
> > + dmb();
> >
> > - setbits_le32(SUNXI_DRAM_PHY0_BASE + 0x54, 0x80);
> > + setbits_le32(SUNXI_DRAM_PHY0_BASE + 0x54, 0x80);
> > + }
> >
> > return true;
> >
> > }
> >
> > @@ -718,7 +721,7 @@ static bool mctl_phy_init(struct dram_para *para)
> >
> > for (i = 0; i < ARRAY_SIZE(phy_init); i++)
> >
> > writel(phy_init[i], &ptr[i]);
> >
> > - if (IS_ENABLED(CONFIG_DRAM_SUN50I_H616_UNKNOWN_FEATURE)) {
> > + if (para->tpr10 & TPR10_UNKNOWN_FEAT0) {
> >
> > ptr = (u32 *)(SUNXI_DRAM_PHY0_BASE + 0x780);
> > for (i = 0; i < 32; i++)
> >
> > writel(0x16, &ptr[i]);
> >
> > @@ -800,7 +803,7 @@ static bool mctl_phy_init(struct dram_para *para)
> >
> > clrbits_le32(&mctl_ctl->rfshctl3, 1);
> > writel(1, &mctl_ctl->swctl);
> >
> > - if (IS_ENABLED(CONFIG_DRAM_SUN50I_H616_WRITE_LEVELING)) {
> > + if (para->tpr10 & TPR10_WRITE_LEVELING) {
> >
> > for (i = 0; i < 5; i++)
> >
> > if (mctl_phy_write_leveling(para))
> >
> > break;
> >
> > @@ -810,7 +813,7 @@ static bool mctl_phy_init(struct dram_para *para)
> >
> > }
> >
> > }
> >
> > - if (IS_ENABLED(CONFIG_DRAM_SUN50I_H616_READ_CALIBRATION)) {
> > + if (para->tpr10 & TPR10_READ_CALIBRATION) {
> >
> > for (i = 0; i < 5; i++)
>
> B> if (mctl_phy_read_calibration(para))
>
> > break;
> >
> > @@ -820,7 +823,7 @@ static bool mctl_phy_init(struct dram_para *para)
> >
> > }
> >
> > }
> >
> > - if (IS_ENABLED(CONFIG_DRAM_SUN50I_H616_READ_TRAINING)) {
> > + if (para->tpr10 & TPR10_READ_TRAINING) {
> >
> > for (i = 0; i < 5; i++)
> >
> > if (mctl_phy_read_training(para))
> >
> > break;
> >
> > @@ -830,7 +833,7 @@ static bool mctl_phy_init(struct dram_para *para)
> >
> > }
> >
> > }
> >
> > - if (IS_ENABLED(CONFIG_DRAM_SUN50I_H616_WRITE_TRAINING)) {
> > + if (para->tpr10 & TPR10_WRITE_TRAINING) {
> >
> > for (i = 0; i < 5; i++)
> >
> > if (mctl_phy_write_training(para))
> >
> > break;
> >
> > @@ -840,8 +843,7 @@ static bool mctl_phy_init(struct dram_para *para)
> >
> > }
> >
> > }
> >
> > - if (IS_ENABLED(CONFIG_DRAM_SUN50I_H616_BIT_DELAY_COMPENSATION))
> > - mctl_phy_bit_delay_compensation(para);
> > + mctl_phy_bit_delay_compensation(para);
> >
> > clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x60, 4);
> >
> > @@ -1022,6 +1024,7 @@ unsigned long sunxi_dram_init(void)
> >
> > .dx_odt = CONFIG_DRAM_SUN50I_H616_DX_ODT,
> > .dx_dri = CONFIG_DRAM_SUN50I_H616_DX_DRI,
> > .ca_dri = CONFIG_DRAM_SUN50I_H616_CA_DRI,
> >
> > + .tpr10 = CONFIG_DRAM_SUN50I_H616_TPR10,
> >
> > };
> > unsigned long size;
> >
> > diff --git a/configs/orangepi_zero2_defconfig
> > b/configs/orangepi_zero2_defconfig index ca398faef1d3..f2024a2502c7
> > 100644
> > --- a/configs/orangepi_zero2_defconfig
> > +++ b/configs/orangepi_zero2_defconfig
> > @@ -2,13 +2,10 @@ CONFIG_ARM=y
> >
> > CONFIG_ARCH_SUNXI=y
> > CONFIG_DEFAULT_DEVICE_TREE="sun50i-h616-orangepi-zero2"
> > CONFIG_SPL=y
> >
> > -CONFIG_DRAM_SUN50I_H616_WRITE_LEVELING=y
> > -CONFIG_DRAM_SUN50I_H616_READ_CALIBRATION=y
> > -CONFIG_DRAM_SUN50I_H616_READ_TRAINING=y
> > -CONFIG_DRAM_SUN50I_H616_WRITE_TRAINING=y
> >
> > CONFIG_DRAM_SUN50I_H616_DX_ODT=0x8080808
> > CONFIG_DRAM_SUN50I_H616_DX_DRI=0xe0e0e0e
> > CONFIG_DRAM_SUN50I_H616_CA_DRI=0xe0e
> >
> > +CONFIG_DRAM_SUN50I_H616_TPR10=0xf83438
> >
> > CONFIG_MACH_SUN50I_H616=y
> > CONFIG_MMC0_CD_PIN="PF6"
> > CONFIG_R_I2C_ENABLE=y
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