rockchip: ram: add full feature rk3328 DRAM driver

This driver supports DDR3/LPDDR3/DDR4 SDRAM initialization.

Signed-off-by: YouMin Chen <cym@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
[cherry picked from commit https://github.com/rockchip-linux/u-boot/commit/9fb0777ec3cc6a89af9d2e0969c3bfe58306a88d with minor modifications]
Signed-off-by: Matwey V. Kornilov <matwey.kornilov@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

1 files changed, 441 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-rockchip/sdram_rk3328.h b/arch/arm/include/asm/arch-rockchip/sdram_rk3328.h
new file mode 100644
index 0000000000..11411ead10
--- /dev/null
+++ b/arch/arm/include/asm/arch-rockchip/sdram_rk3328.h
@@ -0,0 +1,441 @@
+/*
+ * Copyright (C) 2016-2017 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#ifndef _ASM_ARCH_SDRAM_RK3328_H
+#define _ASM_ARCH_SDRAM_RK3328_H
+
+#define SR_IDLE		93
+#define PD_IDLE		13
+#define SDRAM_ADDR	0x00000000
+#define PATTERN		(0x5aa5f00f)
+
+/* ddr pctl registers define */
+#define DDR_PCTL2_MSTR			0x0
+#define DDR_PCTL2_STAT			0x4
+#define DDR_PCTL2_MSTR1			0x8
+#define DDR_PCTL2_MRCTRL0		0x10
+#define DDR_PCTL2_MRCTRL1		0x14
+#define DDR_PCTL2_MRSTAT		0x18
+#define DDR_PCTL2_MRCTRL2		0x1c
+#define DDR_PCTL2_DERATEEN		0x20
+#define DDR_PCTL2_DERATEINT		0x24
+#define DDR_PCTL2_PWRCTL		0x30
+#define DDR_PCTL2_PWRTMG		0x34
+#define DDR_PCTL2_HWLPCTL		0x38
+#define DDR_PCTL2_RFSHCTL0		0x50
+#define DDR_PCTL2_RFSHCTL1		0x54
+#define DDR_PCTL2_RFSHCTL2		0x58
+#define DDR_PCTL2_RFSHCTL4		0x5c
+#define DDR_PCTL2_RFSHCTL3		0x60
+#define DDR_PCTL2_RFSHTMG		0x64
+#define DDR_PCTL2_RFSHTMG1		0x68
+#define DDR_PCTL2_RFSHCTL5		0x6c
+#define DDR_PCTL2_INIT0			0xd0
+#define DDR_PCTL2_INIT1			0xd4
+#define DDR_PCTL2_INIT2			0xd8
+#define DDR_PCTL2_INIT3			0xdc
+#define DDR_PCTL2_INIT4			0xe0
+#define DDR_PCTL2_INIT5			0xe4
+#define DDR_PCTL2_INIT6			0xe8
+#define DDR_PCTL2_INIT7			0xec
+#define DDR_PCTL2_DIMMCTL		0xf0
+#define DDR_PCTL2_RANKCTL		0xf4
+#define DDR_PCTL2_CHCTL			0xfc
+#define DDR_PCTL2_DRAMTMG0		0x100
+#define DDR_PCTL2_DRAMTMG1		0x104
+#define DDR_PCTL2_DRAMTMG2		0x108
+#define DDR_PCTL2_DRAMTMG3		0x10c
+#define DDR_PCTL2_DRAMTMG4		0x110
+#define DDR_PCTL2_DRAMTMG5		0x114
+#define DDR_PCTL2_DRAMTMG6		0x118
+#define DDR_PCTL2_DRAMTMG7		0x11c
+#define DDR_PCTL2_DRAMTMG8		0x120
+#define DDR_PCTL2_DRAMTMG9		0x124
+#define DDR_PCTL2_DRAMTMG10		0x128
+#define DDR_PCTL2_DRAMTMG11		0x12c
+#define DDR_PCTL2_DRAMTMG12		0x130
+#define DDR_PCTL2_DRAMTMG13		0x134
+#define DDR_PCTL2_DRAMTMG14		0x138
+#define DDR_PCTL2_DRAMTMG15		0x13c
+#define DDR_PCTL2_DRAMTMG16		0x140
+#define DDR_PCTL2_ZQCTL0		0x180
+#define DDR_PCTL2_ZQCTL1		0x184
+#define DDR_PCTL2_ZQCTL2		0x188
+#define DDR_PCTL2_ZQSTAT		0x18c
+#define DDR_PCTL2_DFITMG0		0x190
+#define DDR_PCTL2_DFITMG1		0x194
+#define DDR_PCTL2_DFILPCFG0		0x198
+#define DDR_PCTL2_DFILPCFG1		0x19c
+#define DDR_PCTL2_DFIUPD0		0x1a0
+#define DDR_PCTL2_DFIUPD1		0x1a4
+#define DDR_PCTL2_DFIUPD2		0x1a8
+#define DDR_PCTL2_DFIMISC		0x1b0
+#define DDR_PCTL2_DFITMG2		0x1b4
+#define DDR_PCTL2_DFITMG3		0x1b8
+#define DDR_PCTL2_DFISTAT		0x1bc
+#define DDR_PCTL2_DBICTL		0x1c0
+#define DDR_PCTL2_ADDRMAP0		0x200
+#define DDR_PCTL2_ADDRMAP1		0x204
+#define DDR_PCTL2_ADDRMAP2		0x208
+#define DDR_PCTL2_ADDRMAP3		0x20c
+#define DDR_PCTL2_ADDRMAP4		0x210
+#define DDR_PCTL2_ADDRMAP5		0x214
+#define DDR_PCTL2_ADDRMAP6		0x218
+#define DDR_PCTL2_ADDRMAP7		0x21c
+#define DDR_PCTL2_ADDRMAP8		0x220
+#define DDR_PCTL2_ADDRMAP9		0x224
+#define DDR_PCTL2_ADDRMAP10		0x228
+#define DDR_PCTL2_ADDRMAP11		0x22c
+#define DDR_PCTL2_ODTCFG		0x240
+#define DDR_PCTL2_ODTMAP		0x244
+#define DDR_PCTL2_SCHED			0x250
+#define DDR_PCTL2_SCHED1		0x254
+#define DDR_PCTL2_PERFHPR1		0x25c
+#define DDR_PCTL2_PERFLPR1		0x264
+#define DDR_PCTL2_PERFWR1		0x26c
+#define DDR_PCTL2_DQMAP0		0x280
+#define DDR_PCTL2_DQMAP1		0x284
+#define DDR_PCTL2_DQMAP2		0x288
+#define DDR_PCTL2_DQMAP3		0x28c
+#define DDR_PCTL2_DQMAP4		0x290
+#define DDR_PCTL2_DQMAP5		0x294
+#define DDR_PCTL2_DBG0			0x300
+#define DDR_PCTL2_DBG1			0x304
+#define DDR_PCTL2_DBGCAM		0x308
+#define DDR_PCTL2_DBGCMD		0x30c
+#define DDR_PCTL2_DBGSTAT		0x310
+#define DDR_PCTL2_SWCTL			0x320
+#define DDR_PCTL2_SWSTAT		0x324
+#define DDR_PCTL2_POISONCFG		0x36c
+#define DDR_PCTL2_POISONSTAT		0x370
+#define DDR_PCTL2_ADVECCINDEX		0x374
+#define DDR_PCTL2_ADVECCSTAT		0x378
+#define DDR_PCTL2_PSTAT			0x3fc
+#define DDR_PCTL2_PCCFG			0x400
+#define DDR_PCTL2_PCFGR_n		0x404
+#define DDR_PCTL2_PCFGW_n		0x408
+#define DDR_PCTL2_PCTRL_n		0x490
+
+/* PCTL2_MRSTAT */
+#define MR_WR_BUSY			BIT(0)
+
+/* PHY_REG0 */
+#define DIGITAL_DERESET			BIT(3)
+#define ANALOG_DERESET			BIT(2)
+#define DIGITAL_RESET			(0 << 3)
+#define ANALOG_RESET			(0 << 2)
+
+/* PHY_REG1 */
+#define PHY_DDR2			(0)
+#define PHY_LPDDR2			(1)
+#define PHY_DDR3			(2)
+#define PHY_LPDDR3			(3)
+#define PHY_DDR4			(4)
+#define PHY_BL_4			(0 << 2)
+#define PHY_BL_8			BIT(2)
+
+/* PHY_REG2 */
+#define PHY_DTT_EN			BIT(0)
+#define PHY_DTT_DISB			(0 << 0)
+#define PHY_WRITE_LEVELING_EN		BIT(2)
+#define PHY_WRITE_LEVELING_DISB		(0 << 2)
+#define PHY_SELECT_CS0			(2)
+#define PHY_SELECT_CS1			(1)
+#define PHY_SELECT_CS0_1		(0)
+#define PHY_WRITE_LEVELING_SELECTCS(n)	(n << 6)
+#define PHY_DATA_TRAINING_SELECTCS(n)	(n << 4)
+
+#define PHY_DDR3_RON_RTT_DISABLE	(0)
+#define PHY_DDR3_RON_RTT_451ohm		(1)
+#define PHY_DDR3_RON_RTT_225ohm		(2)
+#define PHY_DDR3_RON_RTT_150ohm		(3)
+#define PHY_DDR3_RON_RTT_112ohm		(4)
+#define PHY_DDR3_RON_RTT_90ohm		(5)
+#define PHY_DDR3_RON_RTT_75ohm		(6)
+#define PHY_DDR3_RON_RTT_64ohm		(7)
+#define PHY_DDR3_RON_RTT_56ohm		(16)
+#define PHY_DDR3_RON_RTT_50ohm		(17)
+#define PHY_DDR3_RON_RTT_45ohm		(18)
+#define PHY_DDR3_RON_RTT_41ohm		(19)
+#define PHY_DDR3_RON_RTT_37ohm		(20)
+#define PHY_DDR3_RON_RTT_34ohm		(21)
+#define PHY_DDR3_RON_RTT_33ohm		(22)
+#define PHY_DDR3_RON_RTT_30ohm		(23)
+#define PHY_DDR3_RON_RTT_28ohm		(24)
+#define PHY_DDR3_RON_RTT_26ohm		(25)
+#define PHY_DDR3_RON_RTT_25ohm		(26)
+#define PHY_DDR3_RON_RTT_23ohm		(27)
+#define PHY_DDR3_RON_RTT_22ohm		(28)
+#define PHY_DDR3_RON_RTT_21ohm		(29)
+#define PHY_DDR3_RON_RTT_20ohm		(30)
+#define PHY_DDR3_RON_RTT_19ohm		(31)
+
+#define PHY_DDR4_LPDDR3_RON_RTT_DISABLE	(0)
+#define PHY_DDR4_LPDDR3_RON_RTT_480ohm	(1)
+#define PHY_DDR4_LPDDR3_RON_RTT_240ohm	(2)
+#define PHY_DDR4_LPDDR3_RON_RTT_160ohm	(3)
+#define PHY_DDR4_LPDDR3_RON_RTT_120ohm	(4)
+#define PHY_DDR4_LPDDR3_RON_RTT_96ohm	(5)
+#define PHY_DDR4_LPDDR3_RON_RTT_80ohm	(6)
+#define PHY_DDR4_LPDDR3_RON_RTT_68ohm	(7)
+#define PHY_DDR4_LPDDR3_RON_RTT_60ohm	(16)
+#define PHY_DDR4_LPDDR3_RON_RTT_53ohm	(17)
+#define PHY_DDR4_LPDDR3_RON_RTT_48ohm	(18)
+#define PHY_DDR4_LPDDR3_RON_RTT_43ohm	(19)
+#define PHY_DDR4_LPDDR3_RON_RTT_40ohm	(20)
+#define PHY_DDR4_LPDDR3_RON_RTT_37ohm	(21)
+#define PHY_DDR4_LPDDR3_RON_RTT_34ohm	(22)
+#define PHY_DDR4_LPDDR3_RON_RTT_32ohm	(23)
+#define PHY_DDR4_LPDDR3_RON_RTT_30ohm	(24)
+#define PHY_DDR4_LPDDR3_RON_RTT_28ohm	(25)
+#define PHY_DDR4_LPDDR3_RON_RTT_26ohm	(26)
+#define PHY_DDR4_LPDDR3_RON_RTT_25ohm	(27)
+#define PHY_DDR4_LPDDR3_RON_RTT_24ohm	(28)
+#define PHY_DDR4_LPDDR3_RON_RTT_22ohm	(29)
+#define PHY_DDR4_LPDDR3_RON_RTT_21ohm	(30)
+#define PHY_DDR4_LPDDR3_RON_RTT_20ohm	(31)
+
+/* noc registers define */
+#define DDRCONF				0x8
+#define DDRTIMING			0xc
+#define DDRMODE				0x10
+#define READLATENCY			0x14
+#define AGING0				0x18
+#define AGING1				0x1c
+#define AGING2				0x20
+#define AGING3				0x24
+#define AGING4				0x28
+#define AGING5				0x2c
+#define ACTIVATE			0x38
+#define DEVTODEV			0x3c
+#define DDR4TIMING			0x40
+
+/* DDR GRF */
+#define DDR_GRF_CON(n)		(0 + (n) * 4)
+#define DDR_GRF_STATUS_BASE	(0X100)
+#define DDR_GRF_STATUS(n)	(DDR_GRF_STATUS_BASE + (n) * 4)
+
+/* CRU_SOFTRESET_CON5 */
+#define ddrphy_psrstn_req(n)    (((0x1 << 15) << 16) | (n << 15))
+#define ddrphy_srstn_req(n)     (((0x1 << 14) << 16) | (n << 14))
+#define ddrctrl_psrstn_req(n)	(((0x1 << 13) << 16) | (n << 13))
+#define ddrctrl_srstn_req(n)	(((0x1 << 12) << 16) | (n << 12))
+#define ddrmsch_srstn_req(n)	(((0x1 << 11) << 16) | (n << 11))
+#define msch_srstn_req(n)		(((0x1 << 9) << 16) | (n << 9))
+#define dfimon_srstn_req(n)		(((0x1 << 8) << 16) | (n << 8))
+#define grf_ddr_srstn_req(n)	(((0x1 << 7) << 16) | (n << 7))
+/* CRU_SOFTRESET_CON9 */
+#define ddrctrl_asrstn_req(n)		(((0x1 << 9) << 16) | (n << 9))
+
+/* CRU register */
+#define CRU_PLL_CON(pll_id, n)	((pll_id)  * 0x20 + (n) * 4)
+#define CRU_MODE				(0x80)
+#define CRU_GLB_CNT_TH			(0x90)
+#define CRU_CLKSEL_CON_BASE		0x100
+#define CRU_CLKSELS_CON(i)		(CRU_CLKSEL_CON_BASE + ((i) * 4))
+#define CRU_CLKGATE_CON_BASE		0x200
+#define CRU_CLKGATE_CON(i)		(CRU_CLKGATE_CON_BASE + ((i) * 4))
+#define CRU_CLKSFTRST_CON_BASE	0x300
+#define CRU_CLKSFTRST_CON(i)	(CRU_CLKSFTRST_CON_BASE + ((i) * 4))
+
+/* CRU_PLL_CON0 */
+#define PB(n)         ((0x1 << (15 + 16)) | ((n) << 15))
+#define POSTDIV1(n)   ((0x7 << (12 + 16)) | ((n) << 12))
+#define FBDIV(n)      ((0xFFF << 16) | (n))
+
+/* CRU_PLL_CON1 */
+#define RSTMODE(n)    ((0x1 << (15 + 16)) | ((n) << 15))
+#define RST(n)        ((0x1 << (14 + 16)) | ((n) << 14))
+#define PD(n)         ((0x1 << (13 + 16)) | ((n) << 13))
+#define DSMPD(n)      ((0x1 << (12 + 16)) | ((n) << 12))
+#define LOCK(n)       (((n) >> 10) & 0x1)
+#define POSTDIV2(n)   ((0x7 << (6 + 16)) | ((n) << 6))
+#define REFDIV(n)     ((0x3F << 16) | (n))
+
+union noc_ddrtiming {
+	u32 d32;
+	struct {
+		unsigned acttoact:6;
+		unsigned rdtomiss:6;
+		unsigned wrtomiss:6;
+		unsigned burstlen:3;
+		unsigned rdtowr:5;
+		unsigned wrtord:5;
+		unsigned bwratio:1;
+	} b;
+} NOC_TIMING_T;
+
+union noc_activate {
+	u32 d32;
+	struct {
+		unsigned rrd:4;
+		unsigned faw:6;
+		unsigned fawbank:1;
+		unsigned reserved1:21;
+	} b;
+};
+
+union noc_devtodev {
+	u32 d32;
+	struct {
+		unsigned busrdtord:2;
+		unsigned busrdtowr:2;
+		unsigned buswrtord:2;
+		unsigned reserved2:26;
+	} b;
+};
+
+union noc_ddr4timing {
+	u32 d32;
+	struct {
+		unsigned ccdl:3;
+		unsigned wrtordl:5;
+		unsigned rrdl:4;
+		unsigned reserved2:20;
+	} b;
+};
+
+union noc_ddrmode {
+	u32 d32;
+	struct {
+		unsigned autoprecharge:1;
+		unsigned bwratioextended:1;
+		unsigned reserved3:30;
+	} b;
+};
+
+u32 addrmap[21][9] = {
+	/* map0  map1  map2  map3  map4  map5  map6  map7  map8 */
+	{22, 0x00070707, 0x00000000, 0x1f000000, 0x00001f1f, 0x06060606,
+		0x06060606, 0x00000f0f, 0x3f3f},
+	{23, 0x00080808, 0x00000000, 0x00000000, 0x00001f1f, 0x07070707,
+		0x07070707, 0x00000f0f, 0x3f3f},
+	{23, 0x00090909, 0x00000000, 0x00000000, 0x00001f00, 0x08080808,
+		0x0f080808, 0x00000f0f, 0x3f3f},
+	{24, 0x00090909, 0x00000000, 0x00000000, 0x00001f00, 0x08080808,
+		0x08080808, 0x00000f0f, 0x3f3f},
+	{24, 0x000a0a0a, 0x00000000, 0x00000000, 0x00000000, 0x09090909,
+		0x0f090909, 0x00000f0f, 0x3f3f},
+	{6, 0x00070707, 0x00000000, 0x1f000000, 0x00001f1f, 0x07070707,
+		0x07070707, 0x00000f0f, 0x3f3f},
+	{7, 0x00080808, 0x00000000, 0x00000000, 0x00001f1f, 0x08080808,
+		0x08080808, 0x00000f0f, 0x3f3f},
+	{8, 0x00090909, 0x00000000, 0x00000000, 0x00001f00, 0x09090909,
+		0x0f090909, 0x00000f0f, 0x3f3f},
+	{22, 0x001f0808, 0x00000000, 0x00000000, 0x00001f1f, 0x06060606,
+		0x06060606, 0x00000f0f, 0x3f3f},
+	{23, 0x00080808, 0x00000000, 0x00000000, 0x00001f1f, 0x07070707,
+		0x0f070707, 0x00000f0f, 0x3f3f},
+
+	{24, 0x003f0a0a, 0x01010100, 0x01010101, 0x00001f1f, 0x08080808,
+		0x08080808, 0x00000f0f, 0x0801},
+	{23, 0x003f0a0a, 0x01010100, 0x01010101, 0x00001f1f, 0x08080808,
+		0x0f080808, 0x00000f0f, 0x0801},
+	{24, 0x003f0909, 0x00000007, 0x1f000000, 0x00001f1f, 0x07070707,
+		0x07070707, 0x00000f07, 0x0700},
+	{23, 0x003f0909, 0x00000007, 0x1f000000, 0x00001f1f, 0x07070707,
+		0x07070707, 0x00000f0f, 0x0700},
+	{24, 0x003f0909, 0x01010100, 0x01010101, 0x00001f1f, 0x07070707,
+		0x07070707, 0x00000f07, 0x3f01},
+	{23, 0x003f0909, 0x01010100, 0x01010101, 0x00001f1f, 0x07070707,
+		0x07070707, 0x00000f0f, 0x3f01},
+	{24, 0x003f0808, 0x00000007, 0x1f000000, 0x00001f1f, 0x06060606,
+		0x06060606, 0x00000f06, 0x3f00},
+	{8, 0x003f0a0a, 0x01010100, 0x01010101, 0x00001f1f, 0x09090909,
+		0x0f090909, 0x00000f0f, 0x0801},
+	{7, 0x003f0909, 0x00000007, 0x1f000000, 0x00001f1f, 0x08080808,
+		0x08080808, 0x00000f0f, 0x0700},
+	{7, 0x003f0909, 0x01010100, 0x01010101, 0x00001f1f, 0x08080808,
+		0x08080808, 0x00000f0f, 0x3f01},
+
+	{6, 0x003f0808, 0x00000007, 0x1f000000, 0x00001f1f, 0x07070707,
+		0x07070707, 0x00000f07, 0x3f00}
+};
+
+struct rk3328_msch_timings {
+	union noc_ddrtiming ddrtiming;
+	union noc_ddrmode ddrmode;
+	u32 readlatency;
+	union noc_activate activate;
+	union noc_devtodev devtodev;
+	union noc_ddr4timing ddr4timing;
+	u32 agingx0;
+};
+
+struct rk3328_msch_regs {
+	u32 coreid;
+	u32 revisionid;
+	u32 ddrconf;
+	u32 ddrtiming;
+	u32 ddrmode;
+	u32 readlatency;
+	u32 aging0;
+	u32 aging1;
+	u32 aging2;
+	u32 aging3;
+	u32 aging4;
+	u32 aging5;
+	u32 reserved[2];
+	u32 activate;
+	u32 devtodev;
+	u32 ddr4_timing;
+};
+
+struct rk3328_ddr_grf_regs {
+	u32 ddr_grf_con[4];
+	u32 reserved[(0x100 - 0x10) / 4];
+	u32 ddr_grf_status[11];
+};
+
+struct rk3328_ddr_pctl_regs {
+	u32 pctl[30][2];
+};
+
+struct rk3328_ddr_phy_regs {
+	u32 phy[5][2];
+};
+
+struct rk3328_ddr_skew {
+	u32 a0_a1_skew[15];
+	u32 cs0_dm0_skew[11];
+	u32 cs0_dm1_skew[11];
+	u32 cs0_dm2_skew[11];
+	u32 cs0_dm3_skew[11];
+	u32 cs1_dm0_skew[11];
+	u32 cs1_dm1_skew[11];
+	u32 cs1_dm2_skew[11];
+	u32 cs1_dm3_skew[11];
+};
+
+struct rk3328_sdram_channel {
+	unsigned int rank;
+	unsigned int col;
+	/* 3:8bank, 2:4bank */
+	unsigned int bk;
+	/* channel buswidth, 2:32bit, 1:16bit, 0:8bit */
+	unsigned int bw;
+	/* die buswidth, 2:32bit, 1:16bit, 0:8bit */
+	unsigned int dbw;
+	unsigned int row_3_4;
+	unsigned int cs0_row;
+	unsigned int cs1_row;
+	unsigned int ddrconfig;
+	struct rk3328_msch_timings noc_timings;
+};
+
+struct rk3328_sdram_params {
+	struct rk3328_sdram_channel ch;
+	unsigned int ddr_freq;
+	unsigned int dramtype;
+	unsigned int odt;
+	struct rk3328_ddr_pctl_regs pctl_regs;
+	struct rk3328_ddr_phy_regs phy_regs;
+	struct rk3328_ddr_skew skew;
+};
+
+#define PHY_REG(base, n)		(base + 4 * (n))
+
+#endif