diff options
| -rw-r--r-- | arch/arm/include/asm/arch-sunxi/dram.h | 2 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-sunxi/dram_sun50i_h616.h | 159 | ||||
| -rw-r--r-- | arch/arm/mach-sunxi/Kconfig | 43 | ||||
| -rw-r--r-- | arch/arm/mach-sunxi/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-sunxi/dram_sun50i_h616.c | 1023 | ||||
| -rw-r--r-- | arch/arm/mach-sunxi/dram_timings/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-sunxi/dram_timings/h616_ddr3_1333.c | 94 |
7 files changed, 1325 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-sunxi/dram.h b/arch/arm/include/asm/arch-sunxi/dram.h index 8002b7efdc1..c3b3e1f512b 100644 --- a/arch/arm/include/asm/arch-sunxi/dram.h +++ b/arch/arm/include/asm/arch-sunxi/dram.h @@ -29,6 +29,8 @@ #include <asm/arch/dram_sun9i.h> #elif defined(CONFIG_MACH_SUN50I_H6) #include <asm/arch/dram_sun50i_h6.h> +#elif defined(CONFIG_MACH_SUN50I_H616) +#include <asm/arch/dram_sun50i_h616.h> #else #include <asm/arch/dram_sun4i.h> #endif diff --git a/arch/arm/include/asm/arch-sunxi/dram_sun50i_h616.h b/arch/arm/include/asm/arch-sunxi/dram_sun50i_h616.h new file mode 100644 index 00000000000..134679d5520 --- /dev/null +++ b/arch/arm/include/asm/arch-sunxi/dram_sun50i_h616.h @@ -0,0 +1,159 @@ +/* + * H616 dram controller register and constant defines + * + * (C) Copyright 2020 Jernej Skrabec <jernej.skrabec@siol.net> + * + * Based on H6 one, which is: + * (C) Copyright 2017 Icenowy Zheng <icenowy@aosc.io> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _SUNXI_DRAM_SUN50I_H616_H +#define _SUNXI_DRAM_SUN50I_H616_H + +#include <stdbool.h> +#ifndef __ASSEMBLY__ +#include <linux/bitops.h> +#endif + +enum sunxi_dram_type { + SUNXI_DRAM_TYPE_DDR3 = 3, + SUNXI_DRAM_TYPE_DDR4, + SUNXI_DRAM_TYPE_LPDDR3 = 7, + SUNXI_DRAM_TYPE_LPDDR4 +}; + +/* MBUS part is largely the same as in H6, except for one special register */ +struct sunxi_mctl_com_reg { + u32 cr; /* 0x000 control register */ + u8 reserved_0x004[4]; /* 0x004 */ + u32 unk_0x008; /* 0x008 */ + u32 tmr; /* 0x00c timer register */ + u8 reserved_0x010[4]; /* 0x010 */ + u32 unk_0x014; /* 0x014 */ + u8 reserved_0x018[8]; /* 0x018 */ + u32 maer0; /* 0x020 master enable register 0 */ + u32 maer1; /* 0x024 master enable register 1 */ + u32 maer2; /* 0x028 master enable register 2 */ + u8 reserved_0x02c[468]; /* 0x02c */ + u32 bwcr; /* 0x200 bandwidth control register */ + u8 reserved_0x204[12]; /* 0x204 */ + /* + * The last master configured by BSP libdram is at 0x49x, so the + * size of this struct array is set to 41 (0x29) now. + */ + struct { + u32 cfg0; /* 0x0 */ + u32 cfg1; /* 0x4 */ + u8 reserved_0x8[8]; /* 0x8 */ + } master[41]; /* 0x210 + index * 0x10 */ + u8 reserved_0x4a0[96]; /* 0x4a0 */ + u32 unk_0x500; /* 0x500 */ +}; +check_member(sunxi_mctl_com_reg, unk_0x500, 0x500); + +/* + * Controller registers seems to be the same or at least very similar + * to those in H6. + */ +struct sunxi_mctl_ctl_reg { + u32 mstr; /* 0x000 */ + u32 statr; /* 0x004 unused */ + u32 mstr1; /* 0x008 unused */ + u32 clken; /* 0x00c */ + u32 mrctrl0; /* 0x010 unused */ + u32 mrctrl1; /* 0x014 unused */ + u32 mrstatr; /* 0x018 unused */ + u32 mrctrl2; /* 0x01c unused */ + u32 derateen; /* 0x020 unused */ + u32 derateint; /* 0x024 unused */ + u8 reserved_0x028[8]; /* 0x028 */ + u32 pwrctl; /* 0x030 unused */ + u32 pwrtmg; /* 0x034 unused */ + u32 hwlpctl; /* 0x038 unused */ + u8 reserved_0x03c[20]; /* 0x03c */ + u32 rfshctl0; /* 0x050 unused */ + u32 rfshctl1; /* 0x054 unused */ + u8 reserved_0x058[8]; /* 0x05c */ + u32 rfshctl3; /* 0x060 */ + u32 rfshtmg; /* 0x064 */ + u8 reserved_0x068[104]; /* 0x068 */ + u32 init[8]; /* 0x0d0 */ + u32 dimmctl; /* 0x0f0 unused */ + u32 rankctl; /* 0x0f4 */ + u8 reserved_0x0f8[8]; /* 0x0f8 */ + u32 dramtmg[17]; /* 0x100 */ + u8 reserved_0x144[60]; /* 0x144 */ + u32 zqctl[3]; /* 0x180 */ + u32 zqstat; /* 0x18c unused */ + u32 dfitmg0; /* 0x190 */ + u32 dfitmg1; /* 0x194 */ + u32 dfilpcfg[2]; /* 0x198 unused */ + u32 dfiupd[3]; /* 0x1a0 */ + u32 reserved_0x1ac; /* 0x1ac */ + u32 dfimisc; /* 0x1b0 */ + u32 dfitmg2; /* 0x1b4 unused */ + u32 dfitmg3; /* 0x1b8 unused */ + u32 dfistat; /* 0x1bc */ + u32 dbictl; /* 0x1c0 */ + u8 reserved_0x1c4[60]; /* 0x1c4 */ + u32 addrmap[12]; /* 0x200 */ + u8 reserved_0x230[16]; /* 0x230 */ + u32 odtcfg; /* 0x240 */ + u32 odtmap; /* 0x244 */ + u8 reserved_0x248[8]; /* 0x248 */ + u32 sched[2]; /* 0x250 */ + u8 reserved_0x258[180]; /* 0x258 */ + u32 dbgcmd; /* 0x30c unused */ + u32 dbgstat; /* 0x310 unused */ + u8 reserved_0x314[12]; /* 0x314 */ + u32 swctl; /* 0x320 */ + u32 swstat; /* 0x324 */ + u8 reserved_0x328[7768];/* 0x328 */ + u32 unk_0x2180; /* 0x2180 */ + u8 reserved_0x2184[188];/* 0x2184 */ + u32 unk_0x2240; /* 0x2240 */ + u8 reserved_0x2244[3900];/* 0x2244 */ + u32 unk_0x3180; /* 0x3180 */ + u8 reserved_0x3184[188];/* 0x3184 */ + u32 unk_0x3240; /* 0x3240 */ + u8 reserved_0x3244[3900];/* 0x3244 */ + u32 unk_0x4180; /* 0x4180 */ + u8 reserved_0x4184[188];/* 0x4184 */ + u32 unk_0x4240; /* 0x4240 */ +}; +check_member(sunxi_mctl_ctl_reg, swstat, 0x324); +check_member(sunxi_mctl_ctl_reg, unk_0x4240, 0x4240); + +#define MSTR_DEVICETYPE_DDR3 BIT(0) +#define MSTR_DEVICETYPE_LPDDR2 BIT(2) +#define MSTR_DEVICETYPE_LPDDR3 BIT(3) +#define MSTR_DEVICETYPE_DDR4 BIT(4) +#define MSTR_DEVICETYPE_MASK GENMASK(5, 0) +#define MSTR_2TMODE BIT(10) +#define MSTR_BUSWIDTH_FULL (0 << 12) +#define MSTR_BUSWIDTH_HALF (1 << 12) +#define MSTR_ACTIVE_RANKS(x) (((x == 2) ? 3 : 1) << 24) +#define MSTR_BURST_LENGTH(x) (((x) >> 1) << 16) + +struct dram_para { + u32 clk; + enum sunxi_dram_type type; + u8 cols; + u8 rows; + u8 ranks; + u8 bus_full_width; +}; + + +static inline int ns_to_t(int nanoseconds) +{ + const unsigned int ctrl_freq = CONFIG_DRAM_CLK / 2; + + return DIV_ROUND_UP(ctrl_freq * nanoseconds, 1000); +} + +void mctl_set_timing_params(struct dram_para *para); + +#endif /* _SUNXI_DRAM_SUN50I_H616_H */ diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig index edb9973cf2b..d9924f99db0 100644 --- a/arch/arm/mach-sunxi/Kconfig +++ b/arch/arm/mach-sunxi/Kconfig @@ -48,6 +48,46 @@ config DRAM_SUN50I_H6 Select this dram controller driver for some sun50i platforms, like H6. +config DRAM_SUN50I_H616 + bool + help + Select this dram controller driver for some sun50i platforms, + 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. +endif + config SUN6I_P2WI bool "Allwinner sun6i internal P2WI controller" help @@ -424,6 +464,7 @@ config DRAM_CLK MACH_SUN8I_V3S default 672 if MACH_SUN50I default 744 if MACH_SUN50I_H6 + default 720 if MACH_SUN50I_H616 ---help--- Set the dram clock speed, valid range 240 - 480 (prior to sun9i), must be a multiple of 24. For the sun9i (A80), the tested values @@ -440,6 +481,7 @@ endif config DRAM_ZQ int "sunxi dram zq value" + depends on !MACH_SUN50I_H616 default 123 if MACH_SUN4I || MACH_SUN5I || MACH_SUN6I || \ MACH_SUN8I_A23 || MACH_SUN8I_A33 || MACH_SUN8I_A83T default 127 if MACH_SUN7I @@ -457,6 +499,7 @@ config DRAM_ODT_EN default y if MACH_SUN8I_R40 default y if MACH_SUN50I default y if MACH_SUN50I_H6 + default y if MACH_SUN50I_H616 ---help--- Select this to enable dram odt (on die termination). diff --git a/arch/arm/mach-sunxi/Makefile b/arch/arm/mach-sunxi/Makefile index b8aca43d663..3f081d92f37 100644 --- a/arch/arm/mach-sunxi/Makefile +++ b/arch/arm/mach-sunxi/Makefile @@ -40,4 +40,6 @@ obj-$(CONFIG_SUNXI_DRAM_DW) += dram_sunxi_dw.o obj-$(CONFIG_SUNXI_DRAM_DW) += dram_timings/ obj-$(CONFIG_DRAM_SUN50I_H6) += dram_sun50i_h6.o obj-$(CONFIG_DRAM_SUN50I_H6) += dram_timings/ +obj-$(CONFIG_DRAM_SUN50I_H616) += dram_sun50i_h616.o +obj-$(CONFIG_DRAM_SUN50I_H616) += dram_timings/ endif diff --git a/arch/arm/mach-sunxi/dram_sun50i_h616.c b/arch/arm/mach-sunxi/dram_sun50i_h616.c new file mode 100644 index 00000000000..ef5876971ca --- /dev/null +++ b/arch/arm/mach-sunxi/dram_sun50i_h616.c @@ -0,0 +1,1023 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * sun50i H616 platform dram controller driver + * + * While controller is very similar to that in H6, PHY is completely + * 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. + * + * (C) Copyright 2020 Jernej Skrabec <jernej.skrabec@siol.net> + * + */ +#include <common.h> +#include <init.h> +#include <log.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/dram.h> +#include <asm/arch/cpu.h> +#include <linux/bitops.h> +#include <linux/delay.h> +#include <linux/kconfig.h> + +enum { + MBUS_QOS_LOWEST = 0, + MBUS_QOS_LOW, + MBUS_QOS_HIGH, + MBUS_QOS_HIGHEST +}; + +inline void mbus_configure_port(u8 port, + bool bwlimit, + bool priority, + u8 qos, + u8 waittime, + u8 acs, + u16 bwl0, + u16 bwl1, + u16 bwl2) +{ + struct sunxi_mctl_com_reg * const mctl_com = + (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; + + const u32 cfg0 = ( (bwlimit ? (1 << 0) : 0) + | (priority ? (1 << 1) : 0) + | ((qos & 0x3) << 2) + | ((waittime & 0xf) << 4) + | ((acs & 0xff) << 8) + | (bwl0 << 16) ); + const u32 cfg1 = ((u32)bwl2 << 16) | (bwl1 & 0xffff); + + debug("MBUS port %d cfg0 %08x cfg1 %08x\n", port, cfg0, cfg1); + writel_relaxed(cfg0, &mctl_com->master[port].cfg0); + writel_relaxed(cfg1, &mctl_com->master[port].cfg1); +} + +#define MBUS_CONF(port, bwlimit, qos, acs, bwl0, bwl1, bwl2) \ + mbus_configure_port(port, bwlimit, false, \ + MBUS_QOS_ ## qos, 0, acs, bwl0, bwl1, bwl2) + +static void mctl_set_master_priority(void) +{ + struct sunxi_mctl_com_reg * const mctl_com = + (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; + + /* enable bandwidth limit windows and set windows size 1us */ + writel(399, &mctl_com->tmr); + writel(BIT(16), &mctl_com->bwcr); + + MBUS_CONF( 0, true, HIGHEST, 0, 256, 128, 100); + MBUS_CONF( 1, true, HIGH, 0, 1536, 1400, 256); + MBUS_CONF( 2, true, HIGHEST, 0, 512, 256, 96); + MBUS_CONF( 3, true, HIGH, 0, 256, 100, 80); + MBUS_CONF( 4, true, HIGH, 2, 8192, 5500, 5000); + MBUS_CONF( 5, true, HIGH, 2, 100, 64, 32); + MBUS_CONF( 6, true, HIGH, 2, 100, 64, 32); + MBUS_CONF( 8, true, HIGH, 0, 256, 128, 64); + MBUS_CONF(11, true, HIGH, 0, 256, 128, 100); + MBUS_CONF(14, true, HIGH, 0, 1024, 256, 64); + MBUS_CONF(16, true, HIGHEST, 6, 8192, 2800, 2400); + MBUS_CONF(21, true, HIGHEST, 6, 2048, 768, 512); + MBUS_CONF(25, true, HIGHEST, 0, 100, 64, 32); + MBUS_CONF(26, true, HIGH, 2, 8192, 5500, 5000); + MBUS_CONF(37, true, HIGH, 0, 256, 128, 64); + MBUS_CONF(38, true, HIGH, 2, 100, 64, 32); + MBUS_CONF(39, true, HIGH, 2, 8192, 5500, 5000); + MBUS_CONF(40, true, HIGH, 2, 100, 64, 32); + + dmb(); +} + +static void mctl_sys_init(struct dram_para *para) +{ + struct sunxi_ccm_reg * const ccm = + (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; + struct sunxi_mctl_com_reg * const mctl_com = + (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; + struct sunxi_mctl_ctl_reg * const mctl_ctl = + (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; + + /* Put all DRAM-related blocks to reset state */ + clrbits_le32(&ccm->mbus_cfg, MBUS_ENABLE); + clrbits_le32(&ccm->mbus_cfg, MBUS_RESET); + clrbits_le32(&ccm->dram_gate_reset, BIT(GATE_SHIFT)); + udelay(5); + clrbits_le32(&ccm->dram_gate_reset, BIT(RESET_SHIFT)); + clrbits_le32(&ccm->pll5_cfg, CCM_PLL5_CTRL_EN); + clrbits_le32(&ccm->dram_clk_cfg, DRAM_MOD_RESET); + + udelay(5); + + /* Set PLL5 rate to doubled DRAM clock rate */ + writel(CCM_PLL5_CTRL_EN | CCM_PLL5_LOCK_EN | CCM_PLL5_OUT_EN | + CCM_PLL5_CTRL_N(para->clk * 2 / 24 - 1), &ccm->pll5_cfg); + mctl_await_completion(&ccm->pll5_cfg, CCM_PLL5_LOCK, CCM_PLL5_LOCK); + + /* Configure DRAM mod clock */ + writel(DRAM_CLK_SRC_PLL5, &ccm->dram_clk_cfg); + writel(BIT(RESET_SHIFT), &ccm->dram_gate_reset); + udelay(5); + setbits_le32(&ccm->dram_gate_reset, BIT(GATE_SHIFT)); + + /* Disable all channels */ + writel(0, &mctl_com->maer0); + writel(0, &mctl_com->maer1); + writel(0, &mctl_com->maer2); + + /* Configure MBUS and enable DRAM mod reset */ + setbits_le32(&ccm->mbus_cfg, MBUS_RESET); + setbits_le32(&ccm->mbus_cfg, MBUS_ENABLE); + + clrbits_le32(&mctl_com->unk_0x500, BIT(25)); + + setbits_le32(&ccm->dram_clk_cfg, DRAM_MOD_RESET); + udelay(5); + + /* Unknown hack, which enables access of mctl_ctl regs */ + writel(0x8000, &mctl_ctl->clken); +} + +static void mctl_set_addrmap(struct dram_para *para) +{ + struct sunxi_mctl_ctl_reg * const mctl_ctl = + (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; + u8 cols = para->cols; + u8 rows = para->rows; + u8 ranks = para->ranks; + + if (!para->bus_full_width) + cols -= 1; + + /* Ranks */ + if (ranks == 2) + mctl_ctl->addrmap[0] = rows + cols - 3; + else + mctl_ctl->addrmap[0] = 0x1F; + + /* Banks, hardcoded to 8 banks now */ + mctl_ctl->addrmap[1] = (cols - 2) | (cols - 2) << 8 | (cols - 2) << 16; + + /* Columns */ + mctl_ctl->addrmap[2] = 0; + switch (cols) { + case 7: + mctl_ctl->addrmap[3] = 0x1F1F1F00; + mctl_ctl->addrmap[4] = 0x1F1F; + break; + case 8: + mctl_ctl->addrmap[3] = 0x1F1F0000; + mctl_ctl->addrmap[4] = 0x1F1F; + break; + case 9: + mctl_ctl->addrmap[3] = 0x1F000000; + mctl_ctl->addrmap[4] = 0x1F1F; + break; + case 10: + mctl_ctl->addrmap[3] = 0; + mctl_ctl->addrmap[4] = 0x1F1F; + break; + case 11: + mctl_ctl->addrmap[3] = 0; + mctl_ctl->addrmap[4] = 0x1F00; + break; + case 12: + mctl_ctl->addrmap[3] = 0; + mctl_ctl->addrmap[4] = 0; + break; + default: + panic("Unsupported DRAM configuration: column number invalid\n"); + } + + /* Rows */ + mctl_ctl->addrmap[5] = (cols - 3) | ((cols - 3) << 8) | ((cols - 3) << 16) | ((cols - 3) << 24); + switch (rows) { + case 13: + mctl_ctl->addrmap[6] = (cols - 3) | 0x0F0F0F00; + mctl_ctl->addrmap[7] = 0x0F0F; + break; + case 14: + mctl_ctl->addrmap[6] = (cols - 3) | ((cols - 3) << 8) | 0x0F0F0000; + mctl_ctl->addrmap[7] = 0x0F0F; + break; + case 15: + mctl_ctl->addrmap[6] = (cols - 3) | ((cols - 3) << 8) | ((cols - 3) << 16) | 0x0F000000; + mctl_ctl->addrmap[7] = 0x0F0F; + break; + case 16: + mctl_ctl->addrmap[6] = (cols - 3) | ((cols - 3) << 8) | ((cols - 3) << 16) | ((cols - 3) << 24); + mctl_ctl->addrmap[7] = 0x0F0F; + break; + case 17: + mctl_ctl->addrmap[6] = (cols - 3) | ((cols - 3) << 8) | ((cols - 3) << 16) | ((cols - 3) << 24); + mctl_ctl->addrmap[7] = (cols - 3) | 0x0F00; + break; + case 18: + mctl_ctl->addrmap[6] = (cols - 3) | ((cols - 3) << 8) | ((cols - 3) << 16) | ((cols - 3) << 24); + mctl_ctl->addrmap[7] = (cols - 3) | ((cols - 3) << 8); + break; + default: + panic("Unsupported DRAM configuration: row number invalid\n"); + } + + /* Bank groups, DDR4 only */ + mctl_ctl->addrmap[8] = 0x3F3F; +} + +static const u8 phy_init[] = { + 0x07, 0x0b, 0x02, 0x16, 0x0d, 0x0e, 0x14, 0x19, + 0x0a, 0x15, 0x03, 0x13, 0x04, 0x0c, 0x10, 0x06, + 0x0f, 0x11, 0x1a, 0x01, 0x12, 0x17, 0x00, 0x08, + 0x09, 0x05, 0x18 +}; + +static void mctl_phy_configure_odt(void) +{ + writel_relaxed(0xe, SUNXI_DRAM_PHY0_BASE + 0x388); + writel_relaxed(0xe, SUNXI_DRAM_PHY0_BASE + 0x38c); + + writel_relaxed(0xe, SUNXI_DRAM_PHY0_BASE + 0x3c8); + writel_relaxed(0xe, SUNXI_DRAM_PHY0_BASE + 0x3cc); + + writel_relaxed(0xe, SUNXI_DRAM_PHY0_BASE + 0x408); + writel_relaxed(0xe, SUNXI_DRAM_PHY0_BASE + 0x40c); + + writel_relaxed(0xe, SUNXI_DRAM_PHY0_BASE + 0x448); + writel_relaxed(0xe, SUNXI_DRAM_PHY0_BASE + 0x44c); + + writel_relaxed(0xe, SUNXI_DRAM_PHY0_BASE + 0x340); + writel_relaxed(0xe, SUNXI_DRAM_PHY0_BASE + 0x344); + + writel_relaxed(0xe, SUNXI_DRAM_PHY0_BASE + 0x348); + writel_relaxed(0xe, SUNXI_DRAM_PHY0_BASE + 0x34c); + + writel_relaxed(0x8, SUNXI_DRAM_PHY0_BASE + 0x380); + writel_relaxed(0x8, SUNXI_DRAM_PHY0_BASE + 0x384); + + writel_relaxed(0x8, SUNXI_DRAM_PHY0_BASE + 0x3c0); + writel_relaxed(0x8, SUNXI_DRAM_PHY0_BASE + 0x3c4); + + writel_relaxed(0x8, SUNXI_DRAM_PHY0_BASE + 0x400); + writel_relaxed(0x8, SUNXI_DRAM_PHY0_BASE + 0x404); + + writel_relaxed(0x8, SUNXI_DRAM_PHY0_BASE + 0x440); + writel_relaxed(0x8, SUNXI_DRAM_PHY0_BASE + 0x444); + + dmb(); +} + +static bool mctl_phy_write_leveling(struct dram_para *para) +{ + bool result = true; + u32 val; + + clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 8, 0xc0, 0x80); + writel(4, SUNXI_DRAM_PHY0_BASE + 0xc); + writel(0x40, SUNXI_DRAM_PHY0_BASE + 0x10); + + setbits_le32(SUNXI_DRAM_PHY0_BASE + 8, 4); + + if (para->bus_full_width) + val = 0xf; + else + val = 3; + + mctl_await_completion((u32*)(SUNXI_DRAM_PHY0_BASE + 0x188), val, val); + + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 8, 4); + + val = readl(SUNXI_DRAM_PHY0_BASE + 0x258); + if (val == 0 || val == 0x3f) + result = false; + val = readl(SUNXI_DRAM_PHY0_BASE + 0x25c); + if (val == 0 || val == 0x3f) + result = false; + val = readl(SUNXI_DRAM_PHY0_BASE + 0x318); + if (val == 0 || val == 0x3f) + result = false; + val = readl(SUNXI_DRAM_PHY0_BASE + 0x31c); + if (val == 0 || val == 0x3f) + result = false; + + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 8, 0xc0); + + if (para->ranks == 2) { + clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 8, 0xc0, 0x40); + + setbits_le32(SUNXI_DRAM_PHY0_BASE + 8, 4); + + if (para->bus_full_width) + val = 0xf; + else + val = 3; + + mctl_await_completion((u32*)(SUNXI_DRAM_PHY0_BASE + 0x188), val, val); + + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 8, 4); + } + + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 8, 0xc0); + + return result; +} + +static bool mctl_phy_read_calibration(struct dram_para *para) +{ + bool result = true; + u32 val, tmp; + + clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 8, 0x30, 0x20); + + setbits_le32(SUNXI_DRAM_PHY0_BASE + 8, 1); + + if (para->bus_full_width) + val = 0xf; + else + val = 3; + + while ((readl(SUNXI_DRAM_PHY0_BASE + 0x184) & val) != val) { + if (readl(SUNXI_DRAM_PHY0_BASE + 0x184) & 0x20) { + result = false; + break; + } + } + + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 8, 1); + + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 8, 0x30); + + if (para->ranks == 2) { + clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 8, 0x30, 0x10); + + setbits_le32(SUNXI_DRAM_PHY0_BASE + 8, 1); + + while ((readl(SUNXI_DRAM_PHY0_BASE + 0x184) & val) != val) { + if (readl(SUNXI_DRAM_PHY0_BASE + 0x184) & 0x20) { + result = false; + break; + } + } + + setbits_le32(SUNXI_DRAM_PHY0_BASE + 8, 1); + } + + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 8, 0x30); + + val = readl(SUNXI_DRAM_PHY0_BASE + 0x274) & 7; + tmp = readl(SUNXI_DRAM_PHY0_BASE + 0x26c) & 7; + if (val < tmp) + val = tmp; + tmp = readl(SUNXI_DRAM_PHY0_BASE + 0x32c) & 7; + if (val < tmp) + val = tmp; + tmp = readl(SUNXI_DRAM_PHY0_BASE + 0x334) & 7; + if (val < tmp) + val = tmp; + clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 0x38, 0x7, (val + 2) & 7); + + setbits_le32(SUNXI_DRAM_PHY0_BASE + 4, 0x20); + + return result; +} + +static bool mctl_phy_read_training(struct dram_para *para) +{ + u32 val1, val2, *ptr1, *ptr2; + bool result = true; + int i; + + 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); + clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 0xa04, 0x3f, 0xf); + clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 0xa08, 0x3f, 0xf); + + setbits_le32(SUNXI_DRAM_PHY0_BASE + 0x190, 6); + setbits_le32(SUNXI_DRAM_PHY0_BASE + 0x190, 1); + + mctl_await_completion((u32*)(SUNXI_DRAM_PHY0_BASE + 0x840), 0xc, 0xc); + if (readl(SUNXI_DRAM_PHY0_BASE + 0x840) & 3) + result = false; + + if (para->bus_full_width) { + mctl_await_completion((u32*)(SUNXI_DRAM_PHY0_BASE + 0xa40), 0xc, 0xc); + if (readl(SUNXI_DRAM_PHY0_BASE + 0xa40) & 3) + result = false; + } + + ptr1 = (u32*)(SUNXI_DRAM_PHY0_BASE + 0x898); + ptr2 = (u32*)(SUNXI_DRAM_PHY0_BASE + 0x850); + for (i = 0; i < 9; i++) { + val1 = readl(&ptr1[i]); + val2 = readl(&ptr2[i]); + if (val1 - val2 <= 6) + result = false; + } + ptr1 = (u32*)(SUNXI_DRAM_PHY0_BASE + 0x8bc); + ptr2 = (u32*)(SUNXI_DRAM_PHY0_BASE + 0x874); + for (i = 0; i < 9; i++) { + val1 = readl(&ptr1[i]); + val2 = readl(&ptr2[i]); + if (val1 - val2 <= 6) + result = false; + } + + if (para->bus_full_width) { + ptr1 = (u32*)(SUNXI_DRAM_PHY0_BASE + 0xa98); + ptr2 = (u32*)(SUNXI_DRAM_PHY0_BASE + 0xa50); + for (i = 0; i < 9; i++) { + val1 = readl(&ptr1[i]); + val2 = readl(&ptr2[i]); + if (val1 - val2 <= 6) + result = false; + } + + ptr1 = (u32*)(SUNXI_DRAM_PHY0_BASE + 0xabc); + ptr2 = (u32*)(SUNXI_DRAM_PHY0_BASE + 0xa74); + for (i = 0; i < 9; i++) { + val1 = readl(&ptr1[i]); + val2 = readl(&ptr2[i]); + if (val1 - val2 <= 6) + result = false; + } + } + + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x190, 3); + + if (para->ranks == 2) { + /* maybe last parameter should be 1? */ + clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 0x198, 3, 2); + + setbits_le32(SUNXI_DRAM_PHY0_BASE + 0x190, 6); + setbits_le32(SUNXI_DRAM_PHY0_BASE + 0x190, 1); + + mctl_await_completion((u32*)(SUNXI_DRAM_PHY0_BASE + 0x840), 0xc, 0xc); + if (readl(SUNXI_DRAM_PHY0_BASE + 0x840) & 3) + result = false; + + if (para->bus_full_width) { + mctl_await_completion((u32*)(SUNXI_DRAM_PHY0_BASE + 0xa40), 0xc, 0xc); + if (readl(SUNXI_DRAM_PHY0_BASE + 0xa40) & 3) + result = false; + } + + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x190, 3); + } + + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x198, 3); + + return result; +} + +static bool mctl_phy_write_training(struct dram_para *para) +{ + u32 val1, val2, *ptr1, *ptr2; + bool result = true; + int i; + + writel(0, SUNXI_DRAM_PHY0_BASE + 0x134); + writel(0, SUNXI_DRAM_PHY0_BASE + 0x138); + writel(0, SUNXI_DRAM_PHY0_BASE + 0x19c); + writel(0, SUNXI_DRAM_PHY0_BASE + 0x1a0); + + clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 0x198, 0xc, 8); + + setbits_le32(SUNXI_DRAM_PHY0_BASE + 0x190, 0x10); + setbits_le32(SUNXI_DRAM_PHY0_BASE + 0x190, 0x20); + + mctl_await_completion((u32*)(SUNXI_DRAM_PHY0_BASE + 0x8e0), 3, 3); + if (readl(SUNXI_DRAM_PHY0_BASE + 0x8e0) & 0xc) + result = false; + + if (para->bus_full_width) { + mctl_await_completion((u32*)(SUNXI_DRAM_PHY0_BASE + 0xae0), 3, 3); + if (readl(SUNXI_DRAM_PHY0_BASE + 0xae0) & 0xc) + result = false; + } + + ptr1 = (u32*)(SUNXI_DRAM_PHY0_BASE + 0x938); + ptr2 = (u32*)(SUNXI_DRAM_PHY0_BASE + 0x8f0); + for (i = 0; i < 9; i++) { + val1 = readl(&ptr1[i]); + val2 = readl(&ptr2[i]); + if (val1 - val2 <= 6) + result = false; + } + ptr1 = (u32*)(SUNXI_DRAM_PHY0_BASE + 0x95c); + ptr2 = (u32*)(SUNXI_DRAM_PHY0_BASE + 0x914); + for (i = 0; i < 9; i++) { + val1 = readl(&ptr1[i]); + val2 = readl(&ptr2[i]); + if (val1 - val2 <= 6) + result = false; + } + + if (para->bus_full_width) { + ptr1 = (u32*)(SUNXI_DRAM_PHY0_BASE + 0xb38); + ptr2 = (u32*)(SUNXI_DRAM_PHY0_BASE + 0xaf0); + for (i = 0; i < 9; i++) { + val1 = readl(&ptr1[i]); + val2 = readl(&ptr2[i]); + if (val1 - val2 <= 6) + result = false; + } + ptr1 = (u32*)(SUNXI_DRAM_PHY0_BASE + 0xb5c); + ptr2 = (u32*)(SUNXI_DRAM_PHY0_BASE + 0xb14); + for (i = 0; i < 9; i++) { + val1 = readl(&ptr1[i]); + val2 = readl(&ptr2[i]); + if (val1 - val2 <= 6) + result = false; + } + } + + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x190, 0x60); + + if (para->ranks == 2) { + clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 0x198, 0xc, 4); + + setbits_le32(SUNXI_DRAM_PHY0_BASE + 0x190, 0x10); + setbits_le32(SUNXI_DRAM_PHY0_BASE + 0x190, 0x20); + + mctl_await_completion((u32*)(SUNXI_DRAM_PHY0_BASE + 0x8e0), 3, 3); + if (readl(SUNXI_DRAM_PHY0_BASE + 0x8e0) & 0xc) + result = false; + + if (para->bus_full_width) { + mctl_await_completion((u32*)(SUNXI_DRAM_PHY0_BASE + 0xae0), 3, 3); + if (readl(SUNXI_DRAM_PHY0_BASE + 0xae0) & 0xc) + result = false; + } + + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x190, 0x60); + } + + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x198, 0xc); + + return result; +} + +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); + + 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 + 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); + + dmb(); + + 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); + + 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 + 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); + + dmb(); + + setbits_le32(SUNXI_DRAM_PHY0_BASE + 0x54, 0x80); + + return true; +} + +static bool mctl_phy_init(struct dram_para *para) +{ + struct sunxi_mctl_com_reg * const mctl_com = + (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; + struct sunxi_mctl_ctl_reg * const mctl_ctl = + (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; + u32 val, *ptr; + int i; + + if (para->bus_full_width) + val = 0xf; + else + val = 3; + clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 0x3c, 0xf, val); + + writel(0xd, SUNXI_DRAM_PHY0_BASE + 0x14); + writel(0xd, SUNXI_DRAM_PHY0_BASE + 0x35c); + writel(0xd, SUNXI_DRAM_PHY0_BASE + 0x368); + writel(0xd, SUNXI_DRAM_PHY0_BASE + 0x374); + + writel(0, SUNXI_DRAM_PHY0_BASE + 0x18); + writel(0, SUNXI_DRAM_PHY0_BASE + 0x360); + writel(0, SUNXI_DRAM_PHY0_BASE + 0x36c); + writel(0, SUNXI_DRAM_PHY0_BASE + 0x378); + + writel(9, SUNXI_DRAM_PHY0_BASE + 0x1c); + writel(9, SUNXI_DRAM_PHY0_BASE + 0x364); + writel(9, SUNXI_DRAM_PHY0_BASE + 0x370); + writel(9, SUNXI_DRAM_PHY0_BASE + 0x37c); + + ptr = (u32*)(SUNXI_DRAM_PHY0_BASE + 0xc0); + for (i = 0; i < ARRAY_SIZE(phy_init); i++) + writel(phy_init[i], &ptr[i]); + + if (IS_ENABLED(CONFIG_DRAM_SUN50I_H616_UNKNOWN_FEATURE)) { + ptr = (u32*)(SUNXI_DRAM_PHY0_BASE + 0x780); + for (i = 0; i < 32; i++) + writel(0x16, &ptr[i]); + writel(0xe, SUNXI_DRAM_PHY0_BASE + 0x78c); + writel(0xe, SUNXI_DRAM_PHY0_BASE + 0x7a4); + writel(0xe, SUNXI_DRAM_PHY0_BASE + 0x7b8); + writel(0x8, SUNXI_DRAM_PHY0_BASE + 0x7d4); + writel(0xe, SUNXI_DRAM_PHY0_BASE + 0x7dc); + writel(0xe, SUNXI_DRAM_PHY0_BASE + 0x7e0); + } + + writel(0x80, SUNXI_DRAM_PHY0_BASE + 0x3dc); + writel(0x80, SUNXI_DRAM_PHY0_BASE + 0x45c); + + if (IS_ENABLED(DRAM_ODT_EN)) + mctl_phy_configure_odt(); + + clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 4, 7, 0xa); + + if (para->clk <= 672) + writel(0xf, SUNXI_DRAM_PHY0_BASE + 0x20); + if (para->clk > 500) { + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x144, BIT(7)); + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x14c, 0xe0); + } else { + setbits_le32(SUNXI_DRAM_PHY0_BASE + 0x144, BIT(7)); + clrsetbits_le32(SUNXI_DRAM_PHY0_BASE + 0x14c, 0xe0, 0x20); + } + + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x14c, 8); + + mctl_await_completion((u32*)(SUNXI_DRAM_PHY0_BASE + 0x180), 4, 4); + + writel(0x37, SUNXI_DRAM_PHY0_BASE + 0x58); + clrbits_le32(&mctl_com->unk_0x500, 0x200); + + writel(0, &mctl_ctl->swctl); + setbits_le32(&mctl_ctl->dfimisc, 1); + + /* start DFI init */ + setbits_le32(&mctl_ctl->dfimisc, 0x20); + writel(1, &mctl_ctl->swctl); + mctl_await_completion(&mctl_ctl->swstat, 1, 1); + /* poll DFI init complete */ + mctl_await_completion(&mctl_ctl->dfistat, 1, 1); + writel(0, &mctl_ctl->swctl); + clrbits_le32(&mctl_ctl->dfimisc, 0x20); + + clrbits_le32(&mctl_ctl->pwrctl, 0x20); + writel(1, &mctl_ctl->swctl); + mctl_await_completion(&mctl_ctl->swstat, 1, 1); + mctl_await_completion(&mctl_ctl->statr, 3, 1); + + writel(0, &mctl_ctl->swctl); + clrbits_le32(&mctl_ctl->dfimisc, 1); + + writel(1, &mctl_ctl->swctl); + mctl_await_completion(&mctl_ctl->swstat, 1, 1); + + writel(0x1f14, &mctl_ctl->mrctrl1); + writel(0x80000030, &mctl_ctl->mrctrl0); + mctl_await_completion(&mctl_ctl->mrctrl0, BIT(31), 0); + + writel(4, &mctl_ctl->mrctrl1); + writel(0x80001030, &mctl_ctl->mrctrl0); + mctl_await_completion(&mctl_ctl->mrctrl0, BIT(31), 0); + + writel(0x20, &mctl_ctl->mrctrl1); + writel(0x80002030, &mctl_ctl->mrctrl0); + mctl_await_completion(&mctl_ctl->mrctrl0, BIT(31), 0); + + writel(0, &mctl_ctl->mrctrl1); + writel(0x80003030, &mctl_ctl->mrctrl0); + mctl_await_completion(&mctl_ctl->mrctrl0, BIT(31), 0); + + writel(0, SUNXI_DRAM_PHY0_BASE + 0x54); + + writel(0, &mctl_ctl->swctl); + clrbits_le32(&mctl_ctl->rfshctl3, 1); + writel(1, &mctl_ctl->swctl); + + if (IS_ENABLED(CONFIG_DRAM_SUN50I_H616_WRITE_LEVELING)) { + for (i = 0; i < 5; i++) + if (mctl_phy_write_leveling(para)) + break; + if (i == 5) { + debug("write leveling failed!\n"); + return false; + } + } + + if (IS_ENABLED(CONFIG_DRAM_SUN50I_H616_READ_CALIBRATION)) { + for (i = 0; i < 5; i++) + if (mctl_phy_read_calibration(para)) + break; + if (i == 5) { + debug("read calibration failed!\n"); + return false; + } + } + + if (IS_ENABLED(CONFIG_DRAM_SUN50I_H616_READ_TRAINING)) { + for (i = 0; i < 5; i++) + if (mctl_phy_read_training(para)) + break; + if (i == 5) { + debug("read training failed!\n"); + return false; + } + } + + if (IS_ENABLED(CONFIG_DRAM_SUN50I_H616_WRITE_TRAINING)) { + for (i = 0; i < 5; i++) + if (mctl_phy_write_training(para)) + break; + if (i == 5) { + debug("write training failed!\n"); + return false; + } + } + + if (IS_ENABLED(CONFIG_DRAM_SUN50I_H616_BIT_DELAY_COMPENSATION)) + mctl_phy_bit_delay_compensation(para); + + clrbits_le32(SUNXI_DRAM_PHY0_BASE + 0x60, 4); + + return true; +} + +static bool mctl_ctrl_init(struct dram_para *para) +{ + struct sunxi_mctl_com_reg * const mctl_com = + (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE; + struct sunxi_mctl_ctl_reg * const mctl_ctl = + (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; + u32 reg_val; + + clrsetbits_le32(&mctl_com->unk_0x500, BIT(24), 0x200); + writel(0x8000, &mctl_ctl->clken); + + setbits_le32(&mctl_com->unk_0x008, 0xff00); + + 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(para->ranks); + reg_val |= MSTR_DEVICETYPE_DDR3 | MSTR_2TMODE; + if (para->bus_full_width) + reg_val |= MSTR_BUSWIDTH_FULL; + else + reg_val |= MSTR_BUSWIDTH_HALF; + writel(BIT(31) | BIT(30) | reg_val, &mctl_ctl->mstr); + + if (para->ranks == 2) + writel(0x0303, &mctl_ctl->odtmap); + else + writel(0x0201, &mctl_ctl->odtmap); + + writel(0x06000400, &mctl_ctl->odtcfg); + writel(0x06000400, &mctl_ctl->unk_0x2240); + writel(0x06000400, &mctl_ctl->unk_0x3240); + writel(0x06000400, &mctl_ctl->unk_0x4240); + + setbits_le32(&mctl_com->cr, BIT(31)); + + mctl_set_addrmap(para); + + mctl_set_timing_params(para); + + writel(0, &mctl_ctl->pwrctl); + + setbits_le32(&mctl_ctl->dfiupd[0], BIT(31) | BIT(30)); + setbits_le32(&mctl_ctl->zqctl[0], BIT(31) | BIT(30)); + setbits_le32(&mctl_ctl->unk_0x2180, BIT(31) | BIT(30)); + setbits_le32(&mctl_ctl->unk_0x3180, BIT(31) | BIT(30)); + setbits_le32(&mctl_ctl->unk_0x4180, BIT(31) | BIT(30)); + + setbits_le32(&mctl_ctl->rfshctl3, BIT(0)); + clrbits_le32(&mctl_ctl->dfimisc, BIT(0)); + + writel(0, &mctl_com->maer0); + writel(0, &mctl_com->maer1); + writel(0, &mctl_com->maer2); + + writel(0x20, &mctl_ctl->pwrctl); + setbits_le32(&mctl_ctl->clken, BIT(8)); + + clrsetbits_le32(&mctl_com->unk_0x500, BIT(24), 0x300); + /* this write seems to enable PHY MMIO region */ + setbits_le32(&mctl_com->unk_0x500, BIT(24)); + + if (!mctl_phy_init(para)) + return false; + + writel(0, &mctl_ctl->swctl); + clrbits_le32(&mctl_ctl->rfshctl3, BIT(0)); + + setbits_le32(&mctl_com->unk_0x014, BIT(31)); + writel(0xffffffff, &mctl_com->maer0); + writel(0x7ff, &mctl_com->maer1); + writel(0xffff, &mctl_com->maer2); + + writel(1, &mctl_ctl->swctl); + mctl_await_completion(&mctl_ctl->swstat, 1, 1); + + return true; +} + +static bool mctl_core_init(struct dram_para *para) +{ + mctl_sys_init(para); + + return mctl_ctrl_init(para); +} + +static void mctl_auto_detect_rank_width(struct dram_para *para) +{ + /* this is minimum size that it's supported */ + para->cols = 8; + para->rows = 13; + + /* + * Strategy here is to test most demanding combination first and least + * demanding last, otherwise HW might not be fully utilized. For + * example, half bus width and rank = 1 combination would also work + * on HW with full bus width and rank = 2, but only 1/4 RAM would be + * visible. + */ + + debug("testing 32-bit width, rank = 2\n"); + para->bus_full_width = 1; + para->ranks = 2; + if (mctl_core_init(para)) + return; + + debug("testing 32-bit width, rank = 1\n"); + para->bus_full_width = 1; + para->ranks = 1; + if (mctl_core_init(para)) + return; + + debug("testing 16-bit width, rank = 2\n"); + para->bus_full_width = 0; + para->ranks = 2; + if (mctl_core_init(para)) + return; + + debug("testing 16-bit width, rank = 1\n"); + para->bus_full_width = 0; + para->ranks = 1; + if (mctl_core_init(para)) + return; + + panic("This DRAM setup is currently not supported.\n"); +} + +static void mctl_auto_detect_dram_size(struct dram_para *para) +{ + /* detect row address bits */ + para->cols = 8; + para->rows = 18; + mctl_core_init(para); + + for (para->rows = 13; para->rows < 18; para->rows++) { + /* 8 banks, 8 bit per byte and 16/32 bit width */ + if (mctl_mem_matches((1 << (para->rows + para->cols + + 4 + para->bus_full_width)))) + break; + } + + /* detect column address bits */ + para->cols = 11; + mctl_core_init(para); + + for (para->cols = 8; para->cols < 11; para->cols++) { + /* 8 bits per byte and 16/32 bit width */ + if (mctl_mem_matches(1 << (para->cols + 1 + + para->bus_full_width))) + break; + } +} + +static unsigned long mctl_calc_size(struct dram_para *para) +{ + u8 width = para->bus_full_width ? 4 : 2; + + /* 8 banks */ + return (1ULL << (para->cols + para->rows + 3)) * width * para->ranks; +} + +unsigned long sunxi_dram_init(void) +{ + struct dram_para para = { + .clk = CONFIG_DRAM_CLK, + .type = SUNXI_DRAM_TYPE_DDR3, + }; + unsigned long size; + + setbits_le32(0x7010310, BIT(8)); + clrbits_le32(0x7010318, 0x3f); + + mctl_auto_detect_rank_width(¶); + mctl_auto_detect_dram_size(¶); + + mctl_core_init(¶); + + size = mctl_calc_size(¶); + + mctl_set_master_priority(); + + return size; +}; diff --git a/arch/arm/mach-sunxi/dram_timings/Makefile b/arch/arm/mach-sunxi/dram_timings/Makefile index 0deb9911fd7..39a8756c297 100644 --- a/arch/arm/mach-sunxi/dram_timings/Makefile +++ b/arch/arm/mach-sunxi/dram_timings/Makefile @@ -3,3 +3,5 @@ obj-$(CONFIG_SUNXI_DRAM_LPDDR3_STOCK) += lpddr3_stock.o obj-$(CONFIG_SUNXI_DRAM_DDR2_V3S) += ddr2_v3s.o obj-$(CONFIG_SUNXI_DRAM_H6_LPDDR3) += h6_lpddr3.o obj-$(CONFIG_SUNXI_DRAM_H6_DDR3_1333) += h6_ddr3_1333.o +# currently only DDR3 is supported on H616 +obj-$(CONFIG_MACH_SUN50I_H616) += h616_ddr3_1333.o diff --git a/arch/arm/mach-sunxi/dram_timings/h616_ddr3_1333.c b/arch/arm/mach-sunxi/dram_timings/h616_ddr3_1333.c new file mode 100644 index 00000000000..8f508344bc1 --- /dev/null +++ b/arch/arm/mach-sunxi/dram_timings/h616_ddr3_1333.c @@ -0,0 +1,94 @@ +/* + * sun50i H616 DDR3-1333 timings, as programmed by Allwinner's boot0 + * + * The chips are probably able to be driven by a faster clock, but boot0 + * uses a more conservative timing (as usual). + * + * (C) Copyright 2020 Jernej Skrabec <jernej.skrabec@siol.net> + * Based on H6 DDR3 timings: + * (C) Copyright 2018,2019 Arm Ltd. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/arch/dram.h> +#include <asm/arch/cpu.h> + +void mctl_set_timing_params(struct dram_para *para) +{ + struct sunxi_mctl_ctl_reg * const mctl_ctl = + (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; + + u8 tccd = 2; /* JEDEC: 4nCK */ + u8 tfaw = ns_to_t(50); /* JEDEC: 30 ns w/ 1K pages */ + u8 trrd = max(ns_to_t(6), 4); /* JEDEC: max(6 ns, 4nCK) */ + u8 trcd = ns_to_t(15); /* JEDEC: 13.5 ns */ + u8 trc = ns_to_t(53); /* JEDEC: 49.5 ns */ + u8 txp = max(ns_to_t(6), 3); /* JEDEC: max(6 ns, 3nCK) */ + u8 trtp = max(ns_to_t(8), 2); /* JEDEC: max(7.5 ns, 4nCK) */ + u8 trp = ns_to_t(15); /* JEDEC: >= 13.75 ns */ + u8 tras = ns_to_t(38); /* JEDEC >= 36 ns, <= 9*trefi */ + u16 trefi = ns_to_t(7800) / 32; /* JEDEC: 7.8us@Tcase <= 85C */ + u16 trfc = ns_to_t(350); /* JEDEC: 160 ns for 2Gb */ + u16 txsr = 4; /* ? */ + + u8 tmrw = 0; /* ? */ + u8 tmrd = 4; /* JEDEC: 4nCK */ + u8 tmod = max(ns_to_t(15), 12); /* JEDEC: max(15 ns, 12nCK) */ + u8 tcke = max(ns_to_t(6), 3); /* JEDEC: max(5.625 ns, 3nCK) */ + u8 tcksrx = max(ns_to_t(10), 4); /* JEDEC: max(10 ns, 5nCK) */ + u8 tcksre = max(ns_to_t(10), 4); /* JEDEC: max(10 ns, 5nCK) */ + u8 tckesr = tcke + 1; /* JEDEC: tCKE(min) + 1nCK */ + u8 trasmax = (para->clk / 2) / 15; /* JEDEC: tREFI * 9 */ + u8 txs = ns_to_t(360) / 32; /* JEDEC: max(5nCK,tRFC+10ns) */ + u8 txsdll = 16; /* JEDEC: 512 nCK */ + u8 txsabort = 4; /* ? */ + u8 txsfast = 4; /* ? */ + u8 tcl = 7; /* JEDEC: CL / 2 => 6 */ + u8 tcwl = 5; /* JEDEC: 8 */ + u8 t_rdata_en = 9; /* ? */ + + u8 twtp = 14; /* (WL + BL / 2 + tWR) / 2 */ + u8 twr2rd = trtp + 7; /* (WL + BL / 2 + tWTR) / 2 */ + u8 trd2wr = 5; /* (RL + BL / 2 + 2 - WL) / 2 */ + + /* 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]); + + clrbits_le32(&mctl_ctl->init[0], 3 << 30); + writel(0x420000, &mctl_ctl->init[1]); + writel(5, &mctl_ctl->init[2]); + writel(0x1f140004, &mctl_ctl->init[3]); + writel(0x00200000, &mctl_ctl->init[4]); + + writel(0, &mctl_ctl->dfimisc); + clrsetbits_le32(&mctl_ctl->rankctl, 0xff0, 0x660); + + /* Configure DFI timing */ + writel((tcl - 2) | 0x2000000 | (t_rdata_en << 16) | 0x808000, + &mctl_ctl->dfitmg0); + writel(0x100202, &mctl_ctl->dfitmg1); + + /* set refresh timing */ + writel((trefi << 16) | trfc, &mctl_ctl->rfshtmg); +} |