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-rw-r--r--arch/arm/include/asm/arch-sunxi/dram_sun50i_h616.h2
-rw-r--r--arch/arm/mach-sunxi/Kconfig17
-rw-r--r--arch/arm/mach-sunxi/dram_sun50i_h616.c218
-rw-r--r--arch/arm/mach-sunxi/dram_timings/Makefile1
-rw-r--r--arch/arm/mach-sunxi/dram_timings/h616_lpddr4_2133.c95
5 files changed, 294 insertions, 39 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 11774deded0..a8fdda124a0 100644
--- a/arch/arm/include/asm/arch-sunxi/dram_sun50i_h616.h
+++ b/arch/arm/include/asm/arch-sunxi/dram_sun50i_h616.h
@@ -130,6 +130,7 @@ check_member(sunxi_mctl_ctl_reg, unk_0x4240, 0x4240);
#define MSTR_DEVICETYPE_LPDDR2 BIT(2)
#define MSTR_DEVICETYPE_LPDDR3 BIT(3)
#define MSTR_DEVICETYPE_DDR4 BIT(4)
+#define MSTR_DEVICETYPE_LPDDR4 BIT(5)
#define MSTR_DEVICETYPE_MASK GENMASK(5, 0)
#define MSTR_2TMODE BIT(10)
#define MSTR_BUSWIDTH_FULL (0 << 12)
@@ -154,6 +155,7 @@ struct dram_para {
u32 odt_en;
u32 tpr0;
u32 tpr2;
+ u32 tpr6;
u32 tpr10;
u32 tpr11;
u32 tpr12;
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
index a10e4c06b6a..a4a8d8e9445 100644
--- a/arch/arm/mach-sunxi/Kconfig
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -85,6 +85,12 @@ config DRAM_SUN50I_H616_TPR2
help
TPR2 value from vendor DRAM settings.
+config DRAM_SUN50I_H616_TPR6
+ hex "H616 DRAM TPR6 parameter"
+ default 0x3300c080
+ help
+ TPR6 value from vendor DRAM settings.
+
config DRAM_SUN50I_H616_TPR10
hex "H616 DRAM TPR10 parameter"
help
@@ -462,6 +468,9 @@ config SUNXI_DRAM_DDR2
config SUNXI_DRAM_LPDDR3
bool
+config SUNXI_DRAM_LPDDR4
+ bool
+
choice
prompt "DRAM Type and Timing"
default SUNXI_DRAM_DDR3_1333 if !MACH_SUN8I_V3S
@@ -505,6 +514,14 @@ config SUNXI_DRAM_H616_LPDDR3
This option is the LPDDR3 timing used by the stock boot0 by
Allwinner.
+config SUNXI_DRAM_H616_LPDDR4
+ bool "LPDDR4 DRAM chips on the H616 DRAM controller"
+ select SUNXI_DRAM_LPDDR4
+ depends on DRAM_SUN50I_H616
+ help
+ This option is the LPDDR4 timing used by the stock boot0 by
+ Allwinner.
+
config SUNXI_DRAM_H616_DDR3_1333
bool "DDR3-1333 boot0 timings on the H616 DRAM controller"
select SUNXI_DRAM_DDR3
diff --git a/arch/arm/mach-sunxi/dram_sun50i_h616.c b/arch/arm/mach-sunxi/dram_sun50i_h616.c
index ba5659d4094..c5c1331a4c3 100644
--- a/arch/arm/mach-sunxi/dram_sun50i_h616.c
+++ b/arch/arm/mach-sunxi/dram_sun50i_h616.c
@@ -6,8 +6,8 @@
* unknown. That's why this driver has plenty of magic numbers. Some
* meaning was nevertheless deduced from strings found in boot0 and
* known meaning of some dram parameters.
- * This driver only supports DDR3 memory and omits logic for all
- * other supported types supported by hardware.
+ * This driver supports DDR3, LPDDR3 and LPDDR4 memory. There is no
+ * DDR4 support yet.
*
* (C) Copyright 2020 Jernej Skrabec <jernej.skrabec@siol.net>
*
@@ -238,6 +238,11 @@ static const u8 phy_init[] = {
0x08, 0x01, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x07,
0x17, 0x19, 0x1a
+#elif defined(CONFIG_SUNXI_DRAM_H616_LPDDR4)
+ 0x02, 0x00, 0x17, 0x05, 0x04, 0x19, 0x06, 0x07,
+ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x01,
+ 0x18, 0x03, 0x1a
#endif
};
@@ -246,8 +251,20 @@ static void mctl_phy_configure_odt(const struct dram_para *para)
{
uint32_t val_lo, val_hi;
+ /*
+ * This part should be applicable to all memory types, but is
+ * usually found in LPDDR4 bootloaders. Therefore, we will leave
+ * only for this type of memory.
+ */
+ if (para->type == SUNXI_DRAM_TYPE_LPDDR4) {
+ clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 0x390, BIT(5), BIT(4));
+ clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 0x3d0, BIT(5), BIT(4));
+ clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 0x410, BIT(5), BIT(4));
+ clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 0x450, BIT(5), BIT(4));
+ }
+
val_lo = para->dx_dri;
- val_hi = para->dx_dri;
+ val_hi = (para->type == SUNXI_DRAM_TYPE_LPDDR4) ? 0x04040404 : para->dx_dri;
writel_relaxed(MASK_BYTE(val_lo, 0), SUNXI_DRAM_PHY0_BASE + 0x388);
writel_relaxed(MASK_BYTE(val_hi, 0), SUNXI_DRAM_PHY0_BASE + 0x38c);
writel_relaxed(MASK_BYTE(val_lo, 1), SUNXI_DRAM_PHY0_BASE + 0x3c8);
@@ -265,7 +282,7 @@ static void mctl_phy_configure_odt(const struct dram_para *para)
writel_relaxed(MASK_BYTE(val_hi, 1), SUNXI_DRAM_PHY0_BASE + 0x34c);
val_lo = (para->type == SUNXI_DRAM_TYPE_LPDDR3) ? 0 : para->dx_odt;
- val_hi = para->dx_odt;
+ val_hi = (para->type == SUNXI_DRAM_TYPE_LPDDR4) ? 0 : para->dx_odt;
writel_relaxed(MASK_BYTE(val_lo, 0), SUNXI_DRAM_PHY0_BASE + 0x380);
writel_relaxed(MASK_BYTE(val_hi, 0), SUNXI_DRAM_PHY0_BASE + 0x384);
writel_relaxed(MASK_BYTE(val_lo, 1), SUNXI_DRAM_PHY0_BASE + 0x3c0);
@@ -392,12 +409,18 @@ static bool mctl_phy_read_calibration(const struct dram_config *config)
return result;
}
-static bool mctl_phy_read_training(const struct dram_config *config)
+static bool mctl_phy_read_training(const struct dram_para *para,
+ const struct dram_config *config)
{
u32 val1, val2, *ptr1, *ptr2;
bool result = true;
int i;
+ if (para->type == SUNXI_DRAM_TYPE_LPDDR4) {
+ writel(0, SUNXI_DRAM_PHY0_BASE + 0x800);
+ writel(0, SUNXI_DRAM_PHY0_BASE + 0x81c);
+ }
+
clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 0x198, 3, 2);
clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 0x804, 0x3f, 0xf);
clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 0x808, 0x3f, 0xf);
@@ -578,6 +601,8 @@ static void mctl_phy_bit_delay_compensation(const struct dram_para *para)
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->type == SUNXI_DRAM_TYPE_LPDDR4)
+ clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x4, 0x80);
if (para->tpr10 & BIT(30))
val = para->tpr11 & 0x3f;
@@ -791,8 +816,9 @@ static void mctl_phy_ca_bit_delay_compensation(const struct dram_para *para,
writel(val, SUNXI_DRAM_PHY0_BASE + 0x7e0);
writel(val, SUNXI_DRAM_PHY0_BASE + 0x7f4);
- if (para->type == SUNXI_DRAM_TYPE_DDR3) {
- val = (para->tpr10 >> 7) & 0x1e;
+ val = (para->tpr10 >> 7) & 0x1e;
+ switch (para->type) {
+ case SUNXI_DRAM_TYPE_DDR3:
if (para->tpr2 & 1) {
writel(val, SUNXI_DRAM_PHY0_BASE + 0x794);
if (config->ranks == 2) {
@@ -818,8 +844,8 @@ static void mctl_phy_ca_bit_delay_compensation(const struct dram_para *para,
writel(val, SUNXI_DRAM_PHY0_BASE + 0x7b8);
}
}
- } else if (para->type == SUNXI_DRAM_TYPE_LPDDR3) {
- val = (para->tpr10 >> 7) & 0x1e;
+ break;
+ case SUNXI_DRAM_TYPE_LPDDR3:
if (para->tpr2 & 1) {
writel(val, SUNXI_DRAM_PHY0_BASE + 0x7a0);
if (config->ranks == 2) {
@@ -833,7 +859,18 @@ static void mctl_phy_ca_bit_delay_compensation(const struct dram_para *para,
writel(val, SUNXI_DRAM_PHY0_BASE + 0x7f8);
}
}
- }
+ break;
+ case SUNXI_DRAM_TYPE_LPDDR4:
+ if (para->tpr2 & 1) {
+ writel(val, SUNXI_DRAM_PHY0_BASE + 0x788);
+ } else {
+ writel(val, SUNXI_DRAM_PHY0_BASE + 0x794);
+ };
+ break;
+ case SUNXI_DRAM_TYPE_DDR4:
+ default:
+ panic("This DRAM setup is currently not supported.\n");
+ };
}
static bool mctl_phy_init(const struct dram_para *para,
@@ -846,30 +883,42 @@ static bool mctl_phy_init(const struct dram_para *para,
u32 val, val2, *ptr, mr0, mr2;
int i;
+ if (para->type == SUNXI_DRAM_TYPE_LPDDR4)
+ clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x4,0x80);
+
if (config->bus_full_width)
val = 0xf;
else
val = 3;
clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 0x3c, 0xf, val);
- if (para->tpr2 & 0x100) {
- if (para->type == SUNXI_DRAM_TYPE_DDR3) {
+ switch (para->type) {
+ case SUNXI_DRAM_TYPE_DDR3:
+ if (para->tpr2 & 0x100) {
val = 9;
val2 = 7;
- } else if (para->type == SUNXI_DRAM_TYPE_LPDDR3) {
- // untested setup: use some values for now
- val = 14;
- val2 = 8;
- }
- } else {
- if (para->type == SUNXI_DRAM_TYPE_DDR3) {
+ } else {
val = 13;
val2 = 9;
- } else if (para->type == SUNXI_DRAM_TYPE_LPDDR3) {
+ }
+ break;
+ case SUNXI_DRAM_TYPE_LPDDR3:
+ if (para->tpr2 & 0x100) {
+ val = 12;
+ val2 = 6;
+ } else {
val = 14;
val2 = 8;
}
- }
+ break;
+ case SUNXI_DRAM_TYPE_LPDDR4:
+ val = 20;
+ val2 = 10;
+ break;
+ case SUNXI_DRAM_TYPE_DDR4:
+ default:
+ panic("This DRAM setup is currently not supported.\n");
+ };
writel(val, SUNXI_DRAM_PHY0_BASE + 0x14);
writel(val, SUNXI_DRAM_PHY0_BASE + 0x35c);
@@ -893,19 +942,40 @@ static bool mctl_phy_init(const struct dram_para *para,
if (para->tpr10 & TPR10_CA_BIT_DELAY)
mctl_phy_ca_bit_delay_compensation(para, config);
- if (para->type == SUNXI_DRAM_TYPE_DDR3)
- val = 0x80;
- else if (para->type == SUNXI_DRAM_TYPE_LPDDR3)
- val = 0xc0;
+ switch (para->type) {
+ case SUNXI_DRAM_TYPE_DDR3:
+ val = para->tpr6 & 0xff;
+ break;
+ case SUNXI_DRAM_TYPE_LPDDR3:
+ val = para->tpr6 >> 8 & 0xff;
+ break;
+ case SUNXI_DRAM_TYPE_LPDDR4:
+ val = para->tpr6 >> 24 & 0xff;
+ break;
+ case SUNXI_DRAM_TYPE_DDR4:
+ default:
+ panic("This DRAM setup is currently not supported.\n");
+ };
+
writel(val, SUNXI_DRAM_PHY0_BASE + 0x3dc);
writel(val, SUNXI_DRAM_PHY0_BASE + 0x45c);
mctl_phy_configure_odt(para);
- if (para->type == SUNXI_DRAM_TYPE_DDR3)
+ switch (para->type) {
+ case SUNXI_DRAM_TYPE_DDR3:
val = 0x0a;
- else if (para->type == SUNXI_DRAM_TYPE_LPDDR3)
+ break;
+ case SUNXI_DRAM_TYPE_LPDDR3:
val = 0x0b;
+ break;
+ case SUNXI_DRAM_TYPE_LPDDR4:
+ val = 0x0d;
+ break;
+ case SUNXI_DRAM_TYPE_DDR4:
+ default:
+ panic("This DRAM setup is currently not supported.\n");
+ };
clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 4, 0x7, val);
if (para->clk <= 672)
@@ -955,8 +1025,8 @@ static bool mctl_phy_init(const struct dram_para *para,
mr0 = 0x1f14;
mr2 = 0x20;
}
-
- if (para->type == SUNXI_DRAM_TYPE_DDR3) {
+ switch (para->type) {
+ case SUNXI_DRAM_TYPE_DDR3:
writel(mr0, &mctl_ctl->mrctrl1);
writel(0x80000030, &mctl_ctl->mrctrl0);
mctl_await_completion(&mctl_ctl->mrctrl0, BIT(31), 0);
@@ -972,7 +1042,8 @@ static bool mctl_phy_init(const struct dram_para *para,
writel(0, &mctl_ctl->mrctrl1);
writel(0x80003030, &mctl_ctl->mrctrl0);
mctl_await_completion(&mctl_ctl->mrctrl0, BIT(31), 0);
- } else if (para->type == SUNXI_DRAM_TYPE_LPDDR3) {
+ break;
+ case SUNXI_DRAM_TYPE_LPDDR3:
writel(mr0, &mctl_ctl->mrctrl1);
writel(0x800000f0, &mctl_ctl->mrctrl0);
mctl_await_completion(&mctl_ctl->mrctrl0, BIT(31), 0);
@@ -988,7 +1059,48 @@ static bool mctl_phy_init(const struct dram_para *para,
writel(0x301, &mctl_ctl->mrctrl1);
writel(0x800000f0, &mctl_ctl->mrctrl0);
mctl_await_completion(&mctl_ctl->mrctrl0, BIT(31), 0);
- }
+ break;
+ case SUNXI_DRAM_TYPE_LPDDR4:
+ writel(0x0, &mctl_ctl->mrctrl1);
+ writel(0x80000030, &mctl_ctl->mrctrl0);
+ mctl_await_completion(&mctl_ctl->mrctrl0, BIT(31), 0);
+
+ writel(0x134, &mctl_ctl->mrctrl1);
+ writel(0x80000030, &mctl_ctl->mrctrl0);
+ mctl_await_completion(&mctl_ctl->mrctrl0, BIT(31), 0);
+
+ writel(0x21b, &mctl_ctl->mrctrl1);
+ writel(0x80000030, &mctl_ctl->mrctrl0);
+ mctl_await_completion(&mctl_ctl->mrctrl0, BIT(31), 0);
+
+ writel(0x333, &mctl_ctl->mrctrl1);
+ writel(0x80000030, &mctl_ctl->mrctrl0);
+ mctl_await_completion(&mctl_ctl->mrctrl0, BIT(31), 0);
+
+ writel(0x403, &mctl_ctl->mrctrl1);
+ writel(0x80000030, &mctl_ctl->mrctrl0);
+ mctl_await_completion(&mctl_ctl->mrctrl0, BIT(31), 0);
+
+ writel(0xb04, &mctl_ctl->mrctrl1);
+ writel(0x80000030, &mctl_ctl->mrctrl0);
+ mctl_await_completion(&mctl_ctl->mrctrl0, BIT(31), 0);
+
+ writel(0xc72, &mctl_ctl->mrctrl1);
+ writel(0x80000030, &mctl_ctl->mrctrl0);
+ mctl_await_completion(&mctl_ctl->mrctrl0, BIT(31), 0);
+
+ writel(0xe09, &mctl_ctl->mrctrl1);
+ writel(0x80000030, &mctl_ctl->mrctrl0);
+ mctl_await_completion(&mctl_ctl->mrctrl0, BIT(31), 0);
+
+ writel(0x1624, &mctl_ctl->mrctrl1);
+ writel(0x80000030, &mctl_ctl->mrctrl0);
+ mctl_await_completion(&mctl_ctl->mrctrl0, BIT(31), 0);
+ break;
+ case SUNXI_DRAM_TYPE_DDR4:
+ default:
+ panic("This DRAM setup is currently not supported.\n");
+ };
writel(0, SUNXI_DRAM_PHY0_BASE + 0x54);
@@ -1018,7 +1130,7 @@ static bool mctl_phy_init(const struct dram_para *para,
if (para->tpr10 & TPR10_READ_TRAINING) {
for (i = 0; i < 5; i++)
- if (mctl_phy_read_training(config))
+ if (mctl_phy_read_training(para, config))
break;
if (i == 5) {
debug("read training failed!\n");
@@ -1057,17 +1169,29 @@ static bool mctl_ctrl_init(const struct dram_para *para,
setbits_le32(&mctl_com->unk_0x008, 0xff00);
+ if (para->type == SUNXI_DRAM_TYPE_LPDDR4)
+ writel(1, SUNXI_DRAM_COM_BASE + 0x50);
clrsetbits_le32(&mctl_ctl->sched[0], 0xff00, 0x3000);
writel(0, &mctl_ctl->hwlpctl);
setbits_le32(&mctl_com->unk_0x008, 0xff00);
- reg_val = MSTR_BURST_LENGTH(8) | MSTR_ACTIVE_RANKS(config->ranks);
- if (para->type == SUNXI_DRAM_TYPE_DDR3)
- reg_val |= MSTR_DEVICETYPE_DDR3 | MSTR_2TMODE;
- else if (para->type == SUNXI_DRAM_TYPE_LPDDR3)
- reg_val |= MSTR_DEVICETYPE_LPDDR3;
+ reg_val = MSTR_ACTIVE_RANKS(config->ranks);
+ switch (para->type) {
+ case SUNXI_DRAM_TYPE_DDR3:
+ reg_val |= MSTR_BURST_LENGTH(8) | MSTR_DEVICETYPE_DDR3 | MSTR_2TMODE;
+ break;
+ case SUNXI_DRAM_TYPE_LPDDR3:
+ reg_val |= MSTR_BURST_LENGTH(8) | MSTR_DEVICETYPE_LPDDR3;
+ break;
+ case SUNXI_DRAM_TYPE_LPDDR4:
+ reg_val |= MSTR_BURST_LENGTH(16) | MSTR_DEVICETYPE_LPDDR4;
+ break;
+ case SUNXI_DRAM_TYPE_DDR4:
+ default:
+ panic("This DRAM setup is currently not supported.\n");
+ };
if (config->bus_full_width)
reg_val |= MSTR_BUSWIDTH_FULL;
else
@@ -1079,10 +1203,20 @@ static bool mctl_ctrl_init(const struct dram_para *para,
else
writel(0x0201, &mctl_ctl->odtmap);
- if (para->type == SUNXI_DRAM_TYPE_DDR3)
+ switch (para->type) {
+ case SUNXI_DRAM_TYPE_DDR3:
reg_val = 0x06000400;
- else if (para->type == SUNXI_DRAM_TYPE_LPDDR3)
+ break;
+ case SUNXI_DRAM_TYPE_LPDDR3:
reg_val = 0x09020400;
+ break;
+ case SUNXI_DRAM_TYPE_LPDDR4:
+ reg_val = 0x04000400;
+ break;
+ case SUNXI_DRAM_TYPE_DDR4:
+ default:
+ panic("This DRAM setup is currently not supported.\n");
+ };
writel(reg_val, &mctl_ctl->odtcfg);
writel(reg_val, &mctl_ctl->unk_0x2240);
writel(reg_val, &mctl_ctl->unk_0x3240);
@@ -1102,6 +1236,9 @@ static bool mctl_ctrl_init(const struct dram_para *para,
setbits_le32(&mctl_ctl->unk_0x3180, BIT(31) | BIT(30));
setbits_le32(&mctl_ctl->unk_0x4180, BIT(31) | BIT(30));
+ if (para->type == SUNXI_DRAM_TYPE_LPDDR4)
+ setbits_le32(&mctl_ctl->dbictl, 0x1);
+
setbits_le32(&mctl_ctl->rfshctl3, BIT(0));
clrbits_le32(&mctl_ctl->dfimisc, BIT(0));
@@ -1224,6 +1361,8 @@ static const struct dram_para para = {
.type = SUNXI_DRAM_TYPE_DDR3,
#elif defined(CONFIG_SUNXI_DRAM_H616_LPDDR3)
.type = SUNXI_DRAM_TYPE_LPDDR3,
+#elif defined(CONFIG_SUNXI_DRAM_H616_LPDDR4)
+ .type = SUNXI_DRAM_TYPE_LPDDR4,
#endif
.dx_odt = CONFIG_DRAM_SUN50I_H616_DX_ODT,
.dx_dri = CONFIG_DRAM_SUN50I_H616_DX_DRI,
@@ -1231,6 +1370,7 @@ static const struct dram_para para = {
.odt_en = CONFIG_DRAM_SUN50I_H616_ODT_EN,
.tpr0 = CONFIG_DRAM_SUN50I_H616_TPR0,
.tpr2 = CONFIG_DRAM_SUN50I_H616_TPR2,
+ .tpr6 = CONFIG_DRAM_SUN50I_H616_TPR6,
.tpr10 = CONFIG_DRAM_SUN50I_H616_TPR10,
.tpr11 = CONFIG_DRAM_SUN50I_H616_TPR11,
.tpr12 = CONFIG_DRAM_SUN50I_H616_TPR12,
diff --git a/arch/arm/mach-sunxi/dram_timings/Makefile b/arch/arm/mach-sunxi/dram_timings/Makefile
index 8bfd99448a8..5f203419240 100644
--- a/arch/arm/mach-sunxi/dram_timings/Makefile
+++ b/arch/arm/mach-sunxi/dram_timings/Makefile
@@ -5,3 +5,4 @@ obj-$(CONFIG_SUNXI_DRAM_H6_LPDDR3) += h6_lpddr3.o
obj-$(CONFIG_SUNXI_DRAM_H6_DDR3_1333) += h6_ddr3_1333.o
obj-$(CONFIG_SUNXI_DRAM_H616_DDR3_1333) += h616_ddr3_1333.o
obj-$(CONFIG_SUNXI_DRAM_H616_LPDDR3) += h616_lpddr3.o
+obj-$(CONFIG_SUNXI_DRAM_H616_LPDDR4) += h616_lpddr4_2133.o
diff --git a/arch/arm/mach-sunxi/dram_timings/h616_lpddr4_2133.c b/arch/arm/mach-sunxi/dram_timings/h616_lpddr4_2133.c
new file mode 100644
index 00000000000..c11cb8678f6
--- /dev/null
+++ b/arch/arm/mach-sunxi/dram_timings/h616_lpddr4_2133.c
@@ -0,0 +1,95 @@
+/*
+ * sun50i H616 LPDDR4-2133 timings, as programmed by Allwinner's boot0
+ * for orangepi zero3 with the H618 and LPDDR4 memory.
+ *
+ * (C) Copyright 2023 Mikhail Kalashnikov <iuncuim@gmail.com>
+ * Based on H6 DDR3 timings:
+ * (C) Copyright 2020 Jernej Skrabec <jernej.skrabec@siol.net>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/dram.h>
+#include <asm/arch/cpu.h>
+
+void mctl_set_timing_params(const struct dram_para *para)
+{
+ struct sunxi_mctl_ctl_reg * const mctl_ctl =
+ (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE;
+
+ u8 tccd = 4;
+ u8 tfaw = ns_to_t(40);
+ u8 trrd = max(ns_to_t(10), 2);
+ u8 trcd = max(ns_to_t(18), 2);
+ u8 trc = ns_to_t(65);
+ u8 txp = max(ns_to_t(8), 2);
+ u8 trtp = max(ns_to_t(8), 4);
+ u8 trp = ns_to_t(21);
+ u8 tras = ns_to_t(42);
+ u16 trefi = ns_to_t(3904) / 32;
+ u16 trfc = ns_to_t(280);
+ u16 txsr = ns_to_t(190);
+
+ u8 tmrw = max(ns_to_t(14), 5);
+ u8 tmrd = tmrw;
+ u8 tmod = 12;
+ u8 tcke = max(ns_to_t(15), 2);
+ u8 tcksrx = max(ns_to_t(2), 2);
+ u8 tcksre = max(ns_to_t(5), 2);
+ u8 tckesr = tcke;
+ u8 trasmax = (trefi * 9) / 32;
+ u8 txs = 4;
+ u8 txsdll = 16;
+ u8 txsabort = 4;
+ u8 txsfast = 4;
+ u8 tcl = 10;
+ u8 tcwl = 5;
+ u8 t_rdata_en = 17;
+ u8 tphy_wrlat = 5;
+
+ u8 twtp = 24;
+ u8 twr2rd = max(trrd, (u8)4) + 14;
+ u8 trd2wr = (ns_to_t(4) + 17) - ns_to_t(1);
+
+ /* set DRAM timing */
+ writel((twtp << 24) | (tfaw << 16) | (trasmax << 8) | tras,
+ &mctl_ctl->dramtmg[0]);
+ writel((txp << 16) | (trtp << 8) | trc, &mctl_ctl->dramtmg[1]);
+ writel((tcwl << 24) | (tcl << 16) | (trd2wr << 8) | twr2rd,
+ &mctl_ctl->dramtmg[2]);
+ writel((tmrw << 20) | (tmrd << 12) | tmod, &mctl_ctl->dramtmg[3]);
+ writel((trcd << 24) | (tccd << 16) | (trrd << 8) | trp,
+ &mctl_ctl->dramtmg[4]);
+ writel((tcksrx << 24) | (tcksre << 16) | (tckesr << 8) | tcke,
+ &mctl_ctl->dramtmg[5]);
+ /* Value suggested by ZynqMP manual and used by libdram */
+ writel((txp + 2) | 0x02020000, &mctl_ctl->dramtmg[6]);
+ writel((txsfast << 24) | (txsabort << 16) | (txsdll << 8) | txs,
+ &mctl_ctl->dramtmg[8]);
+ writel(0x00020208, &mctl_ctl->dramtmg[9]);
+ writel(0xE0C05, &mctl_ctl->dramtmg[10]);
+ writel(0x440C021C, &mctl_ctl->dramtmg[11]);
+ writel(8, &mctl_ctl->dramtmg[12]);
+ writel(0xA100002, &mctl_ctl->dramtmg[13]);
+ writel(txsr, &mctl_ctl->dramtmg[14]);
+
+ clrsetbits_le32(&mctl_ctl->init[0], 0xC0000FFF, 0x3f0);
+ writel(0x01f20000, &mctl_ctl->init[1]);
+ writel(0x00000d05, &mctl_ctl->init[2]);
+ writel(0, &mctl_ctl->dfimisc);
+ writel(0x0034001b, &mctl_ctl->init[3]);
+ writel(0x00330000, &mctl_ctl->init[4]);
+ writel(0x00040072, &mctl_ctl->init[6]);
+ writel(0x00240009, &mctl_ctl->init[7]);
+
+ clrsetbits_le32(&mctl_ctl->rankctl, 0xff0, 0x660);
+
+ /* Configure DFI timing */
+ writel(tphy_wrlat | 0x2000000 | (t_rdata_en << 16) | 0x808000,
+ &mctl_ctl->dfitmg0);
+ writel(0x100202, &mctl_ctl->dfitmg1);
+
+ /* set refresh timing */
+ writel((trefi << 16) | trfc, &mctl_ctl->rfshtmg);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-15 05:32:25 +0000