Dne torek, 13. december 2022 ob 17:51:35 CET je Andre Przywara napisal(a):
On Tue, 13 Dec 2022 17:23:12 +0100
Jernej Škrabec jernej.skrabec@gmail.com wrote:
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@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.
But DRAM_SUN50I_H616_BIT_DELAY_COMPENSATION is not set by any (of the two) defconfigs atm, and I don't see this in your t95 (WIP?) branch on github either. So that whole code was completely unused (until now).
Hm, I remember writing this code for T95, but I'm not sure why it's not enabled in defconfig. I'm sure values are ok and match vendor driver.
It's interesting to see how some parts of initialization procedure have some wiggle room and still appear to be stable.
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.
Sure, I was just confused that we have some elaborate code, with values backed by the vendor BSP, but then don't use that. But if it gets used now, it's all fine, I guess.
Great!
Best regards, Jernej
One small thing below.
Signed-off-by: Jernej Skrabec jernej.skrabec@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.
Great, thanks!
Cheers, Andre
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 readcalibration.
-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 delaycompensation.-config DRAM_SUN50I_H616_UNKNOWN_FEATURE
- bool "H616 DRAM unknown feature"
- ---help---
Select this when DRAM on your H616 board needs this unknownfeature.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 featuresshould 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