Add driver for rk322x to support sdram initialize in SPL.
Signed-off-by: Kever Yang kever.yang@rock-chips.com Acked-by: Philipp Tomsich philipp.tomsich@theobroma-systems.com ---
Changes in v2: None
arch/arm/include/asm/arch-rockchip/sdram_rk322x.h | 581 +++++++++++++++ arch/arm/mach-rockchip/rk322x/Makefile | 1 + arch/arm/mach-rockchip/rk322x/sdram_rk322x.c | 855 ++++++++++++++++++++++ 3 files changed, 1437 insertions(+) create mode 100644 arch/arm/include/asm/arch-rockchip/sdram_rk322x.h create mode 100644 arch/arm/mach-rockchip/rk322x/sdram_rk322x.c
diff --git a/arch/arm/include/asm/arch-rockchip/sdram_rk322x.h b/arch/arm/include/asm/arch-rockchip/sdram_rk322x.h new file mode 100644 index 0000000..b10de76 --- /dev/null +++ b/arch/arm/include/asm/arch-rockchip/sdram_rk322x.h @@ -0,0 +1,581 @@ +/* + * (C) Copyright 2017 Rockchip Electronics Co., Ltd + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#ifndef _ASM_ARCH_SDRAM_RK322X_H +#define _ASM_ARCH_SDRAM_RK322X_H + +#include <common.h> + +enum { + DDR3 = 3, + LPDDR2 = 5, + LPDDR3 = 6, + UNUSED = 0xFF, +}; + +struct rk322x_sdram_channel { + /* + * bit width in address, eg: + * 8 banks using 3 bit to address, + * 2 cs using 1 bit to address. + */ + u8 rank; + u8 col; + u8 bk; + u8 bw; + u8 dbw; + u8 row_3_4; + u8 cs0_row; + u8 cs1_row; +#if CONFIG_IS_ENABLED(OF_PLATDATA) + /* + * For of-platdata, which would otherwise convert this into two + * byte-swapped integers. With a size of 9 bytes, this struct will + * appear in of-platdata as a byte array. + * + * If OF_PLATDATA enabled, need to add a dummy byte in dts.(i.e 0xff) + */ + u8 dummy; +#endif +}; + +struct rk322x_ddr_pctl { + u32 scfg; + u32 sctl; + u32 stat; + u32 intrstat; + u32 reserved0[(0x40 - 0x10) / 4]; + u32 mcmd; + u32 powctl; + u32 powstat; + u32 cmdtstat; + u32 cmdtstaten; + u32 reserved1[(0x60 - 0x54) / 4]; + u32 mrrcfg0; + u32 mrrstat0; + u32 mrrstat1; + u32 reserved2[(0x7c - 0x6c) / 4]; + + u32 mcfg1; + u32 mcfg; + u32 ppcfg; + u32 mstat; + u32 lpddr2zqcfg; + u32 reserved3; + + u32 dtupdes; + u32 dtuna; + u32 dtune; + u32 dtuprd0; + u32 dtuprd1; + u32 dtuprd2; + u32 dtuprd3; + u32 dtuawdt; + u32 reserved4[(0xc0 - 0xb4) / 4]; + + u32 togcnt1u; + u32 tinit; + u32 trsth; + u32 togcnt100n; + u32 trefi; + u32 tmrd; + u32 trfc; + u32 trp; + u32 trtw; + u32 tal; + u32 tcl; + u32 tcwl; + u32 tras; + u32 trc; + u32 trcd; + u32 trrd; + u32 trtp; + u32 twr; + u32 twtr; + u32 texsr; + u32 txp; + u32 txpdll; + u32 tzqcs; + u32 tzqcsi; + u32 tdqs; + u32 tcksre; + u32 tcksrx; + u32 tcke; + u32 tmod; + u32 trstl; + u32 tzqcl; + u32 tmrr; + u32 tckesr; + u32 tdpd; + u32 tref_mem_ddr3; + u32 reserved5[(0x180 - 0x14c) / 4]; + u32 ecccfg; + u32 ecctst; + u32 eccclr; + u32 ecclog; + u32 reserved6[(0x200 - 0x190) / 4]; + u32 dtuwactl; + u32 dturactl; + u32 dtucfg; + u32 dtuectl; + u32 dtuwd0; + u32 dtuwd1; + u32 dtuwd2; + u32 dtuwd3; + u32 dtuwdm; + u32 dturd0; + u32 dturd1; + u32 dturd2; + u32 dturd3; + u32 dtulfsrwd; + u32 dtulfsrrd; + u32 dtueaf; + /* dfi control registers */ + u32 dfitctrldelay; + u32 dfiodtcfg; + u32 dfiodtcfg1; + u32 dfiodtrankmap; + /* dfi write data registers */ + u32 dfitphywrdata; + u32 dfitphywrlat; + u32 reserved7[(0x260 - 0x258) / 4]; + u32 dfitrddataen; + u32 dfitphyrdlat; + u32 reserved8[(0x270 - 0x268) / 4]; + u32 dfitphyupdtype0; + u32 dfitphyupdtype1; + u32 dfitphyupdtype2; + u32 dfitphyupdtype3; + u32 dfitctrlupdmin; + u32 dfitctrlupdmax; + u32 dfitctrlupddly; + u32 reserved9; + u32 dfiupdcfg; + u32 dfitrefmski; + u32 dfitctrlupdi; + u32 reserved10[(0x2ac - 0x29c) / 4]; + u32 dfitrcfg0; + u32 dfitrstat0; + u32 dfitrwrlvlen; + u32 dfitrrdlvlen; + u32 dfitrrdlvlgateen; + u32 dfiststat0; + u32 dfistcfg0; + u32 dfistcfg1; + u32 reserved11; + u32 dfitdramclken; + u32 dfitdramclkdis; + u32 dfistcfg2; + u32 dfistparclr; + u32 dfistparlog; + u32 reserved12[(0x2f0 - 0x2e4) / 4]; + + u32 dfilpcfg0; + u32 reserved13[(0x300 - 0x2f4) / 4]; + u32 dfitrwrlvlresp0; + u32 dfitrwrlvlresp1; + u32 dfitrwrlvlresp2; + u32 dfitrrdlvlresp0; + u32 dfitrrdlvlresp1; + u32 dfitrrdlvlresp2; + u32 dfitrwrlvldelay0; + u32 dfitrwrlvldelay1; + u32 dfitrwrlvldelay2; + u32 dfitrrdlvldelay0; + u32 dfitrrdlvldelay1; + u32 dfitrrdlvldelay2; + u32 dfitrrdlvlgatedelay0; + u32 dfitrrdlvlgatedelay1; + u32 dfitrrdlvlgatedelay2; + u32 dfitrcmd; + u32 reserved14[(0x3f8 - 0x340) / 4]; + u32 ipvr; + u32 iptr; +}; +check_member(rk322x_ddr_pctl, iptr, 0x03fc); + +struct rk322x_ddr_phy { + u32 ddrphy_reg[0x100]; +}; + +struct rk322x_pctl_timing { + u32 togcnt1u; + u32 tinit; + u32 trsth; + u32 togcnt100n; + u32 trefi; + u32 tmrd; + u32 trfc; + u32 trp; + u32 trtw; + u32 tal; + u32 tcl; + u32 tcwl; + u32 tras; + u32 trc; + u32 trcd; + u32 trrd; + u32 trtp; + u32 twr; + u32 twtr; + u32 texsr; + u32 txp; + u32 txpdll; + u32 tzqcs; + u32 tzqcsi; + u32 tdqs; + u32 tcksre; + u32 tcksrx; + u32 tcke; + u32 tmod; + u32 trstl; + u32 tzqcl; + u32 tmrr; + u32 tckesr; + u32 tdpd; + u32 trefi_mem_ddr3; +}; + +struct rk322x_phy_timing { + u32 mr[4]; + u32 mr11; + u32 bl; + u32 cl_al; +}; + +struct rk322x_msch_timings { + u32 ddrtiming; + u32 ddrmode; + u32 readlatency; + u32 activate; + u32 devtodev; +}; + +struct rk322x_service_sys { + u32 id_coreid; + u32 id_revisionid; + u32 ddrconf; + u32 ddrtiming; + u32 ddrmode; + u32 readlatency; + u32 activate; + u32 devtodev; +}; + +struct rk322x_base_params { + struct rk322x_msch_timings noc_timing; + u32 ddrconfig; + u32 ddr_freq; + u32 dramtype; + /* + * unused for rk322x + */ + u32 stride; + u32 odt; +}; + +/* PCT_DFISTCFG0 */ +#define DFI_INIT_START (1 << 0) +#define DFI_DATA_BYTE_DISABLE_EN (1 << 2) + +/* PCT_DFISTCFG1 */ +#define DFI_DRAM_CLK_SR_EN (1 << 0) +#define DFI_DRAM_CLK_DPD_EN (1 << 1) + +/* PCT_DFISTCFG2 */ +#define DFI_PARITY_INTR_EN (1 << 0) +#define DFI_PARITY_EN (1 << 1) + +/* PCT_DFILPCFG0 */ +#define TLP_RESP_TIME_SHIFT 16 +#define LP_SR_EN (1 << 8) +#define LP_PD_EN (1 << 0) + +/* PCT_DFITCTRLDELAY */ +#define TCTRL_DELAY_TIME_SHIFT 0 + +/* PCT_DFITPHYWRDATA */ +#define TPHY_WRDATA_TIME_SHIFT 0 + +/* PCT_DFITPHYRDLAT */ +#define TPHY_RDLAT_TIME_SHIFT 0 + +/* PCT_DFITDRAMCLKDIS */ +#define TDRAM_CLK_DIS_TIME_SHIFT 0 + +/* PCT_DFITDRAMCLKEN */ +#define TDRAM_CLK_EN_TIME_SHIFT 0 + +/* PCTL_DFIODTCFG */ +#define RANK0_ODT_WRITE_SEL (1 << 3) +#define RANK1_ODT_WRITE_SEL (1 << 11) + +/* PCTL_DFIODTCFG1 */ +#define ODT_LEN_BL8_W_SHIFT 16 + +/* PUBL_ACDLLCR */ +#define ACDLLCR_DLLDIS (1 << 31) +#define ACDLLCR_DLLSRST (1 << 30) + +/* PUBL_DXDLLCR */ +#define DXDLLCR_DLLDIS (1 << 31) +#define DXDLLCR_DLLSRST (1 << 30) + +/* PUBL_DLLGCR */ +#define DLLGCR_SBIAS (1 << 30) + +/* PUBL_DXGCR */ +#define DQSRTT (1 << 9) +#define DQRTT (1 << 10) + +/* PIR */ +#define PIR_INIT (1 << 0) +#define PIR_DLLSRST (1 << 1) +#define PIR_DLLLOCK (1 << 2) +#define PIR_ZCAL (1 << 3) +#define PIR_ITMSRST (1 << 4) +#define PIR_DRAMRST (1 << 5) +#define PIR_DRAMINIT (1 << 6) +#define PIR_QSTRN (1 << 7) +#define PIR_RVTRN (1 << 8) +#define PIR_ICPC (1 << 16) +#define PIR_DLLBYP (1 << 17) +#define PIR_CTLDINIT (1 << 18) +#define PIR_CLRSR (1 << 28) +#define PIR_LOCKBYP (1 << 29) +#define PIR_ZCALBYP (1 << 30) +#define PIR_INITBYP (1u << 31) + +/* PGCR */ +#define PGCR_DFTLMT_SHIFT 3 +#define PGCR_DFTCMP_SHIFT 2 +#define PGCR_DQSCFG_SHIFT 1 +#define PGCR_ITMDMD_SHIFT 0 + +/* PGSR */ +#define PGSR_IDONE (1 << 0) +#define PGSR_DLDONE (1 << 1) +#define PGSR_ZCDONE (1 << 2) +#define PGSR_DIDONE (1 << 3) +#define PGSR_DTDONE (1 << 4) +#define PGSR_DTERR (1 << 5) +#define PGSR_DTIERR (1 << 6) +#define PGSR_DFTERR (1 << 7) +#define PGSR_RVERR (1 << 8) +#define PGSR_RVEIRR (1 << 9) + +/* PTR0 */ +#define PRT_ITMSRST_SHIFT 18 +#define PRT_DLLLOCK_SHIFT 6 +#define PRT_DLLSRST_SHIFT 0 + +/* PTR1 */ +#define PRT_DINIT0_SHIFT 0 +#define PRT_DINIT1_SHIFT 19 + +/* PTR2 */ +#define PRT_DINIT2_SHIFT 0 +#define PRT_DINIT3_SHIFT 17 + +/* DCR */ +#define DDRMD_LPDDR 0 +#define DDRMD_DDR 1 +#define DDRMD_DDR2 2 +#define DDRMD_DDR3 3 +#define DDRMD_LPDDR2_LPDDR3 4 +#define DDRMD_MASK 7 +#define DDRMD_SHIFT 0 +#define PDQ_MASK 7 +#define PDQ_SHIFT 4 + +/* DXCCR */ +#define DQSNRES_MASK 0xf +#define DQSNRES_SHIFT 8 +#define DQSRES_MASK 0xf +#define DQSRES_SHIFT 4 + +/* DTPR */ +#define TDQSCKMAX_SHIFT 27 +#define TDQSCKMAX_MASK 7 +#define TDQSCK_SHIFT 24 +#define TDQSCK_MASK 7 + +/* DSGCR */ +#define DQSGX_SHIFT 5 +#define DQSGX_MASK 7 +#define DQSGE_SHIFT 8 +#define DQSGE_MASK 7 + +/* SCTL */ +#define INIT_STATE 0 +#define CFG_STATE 1 +#define GO_STATE 2 +#define SLEEP_STATE 3 +#define WAKEUP_STATE 4 + +/* STAT */ +#define LP_TRIG_SHIFT 4 +#define LP_TRIG_MASK 7 +#define PCTL_STAT_MASK 7 +#define INIT_MEM 0 +#define CONFIG 1 +#define CONFIG_REQ 2 +#define ACCESS 3 +#define ACCESS_REQ 4 +#define LOW_POWER 5 +#define LOW_POWER_ENTRY_REQ 6 +#define LOW_POWER_EXIT_REQ 7 + +/* ZQCR*/ +#define PD_OUTPUT_SHIFT 0 +#define PU_OUTPUT_SHIFT 5 +#define PD_ONDIE_SHIFT 10 +#define PU_ONDIE_SHIFT 15 +#define ZDEN_SHIFT 28 + +/* DDLGCR */ +#define SBIAS_BYPASS (1 << 23) + +/* MCFG */ +#define MDDR_LPDDR2_CLK_STOP_IDLE_SHIFT 24 +#define PD_IDLE_SHIFT 8 +#define MDDR_EN (2 << 22) +#define LPDDR2_EN (3 << 22) +#define LPDDR3_EN (1 << 22) +#define DDR2_EN (0 << 5) +#define DDR3_EN (1 << 5) +#define LPDDR2_S2 (0 << 6) +#define LPDDR2_S4 (1 << 6) +#define MDDR_LPDDR2_BL_2 (0 << 20) +#define MDDR_LPDDR2_BL_4 (1 << 20) +#define MDDR_LPDDR2_BL_8 (2 << 20) +#define MDDR_LPDDR2_BL_16 (3 << 20) +#define DDR2_DDR3_BL_4 0 +#define DDR2_DDR3_BL_8 1 +#define TFAW_SHIFT 18 +#define PD_EXIT_SLOW (0 << 17) +#define PD_EXIT_FAST (1 << 17) +#define PD_TYPE_SHIFT 16 +#define BURSTLENGTH_SHIFT 20 + +/* POWCTL */ +#define POWER_UP_START (1 << 0) + +/* POWSTAT */ +#define POWER_UP_DONE (1 << 0) + +/* MCMD */ +enum { + DESELECT_CMD = 0, + PREA_CMD, + REF_CMD, + MRS_CMD, + ZQCS_CMD, + ZQCL_CMD, + RSTL_CMD, + MRR_CMD = 8, + DPDE_CMD, +}; + +#define BANK_ADDR_MASK 7 +#define BANK_ADDR_SHIFT 17 +#define CMD_ADDR_MASK 0x1fff +#define CMD_ADDR_SHIFT 4 + +#define LPDDR23_MA_SHIFT 4 +#define LPDDR23_MA_MASK 0xff +#define LPDDR23_OP_SHIFT 12 +#define LPDDR23_OP_MASK 0xff + +#define START_CMD (1u << 31) + +/* DDRPHY REG */ +enum { + /* DDRPHY_REG0 */ + SOFT_RESET_MASK = 3, + SOFT_DERESET_ANALOG = 1 << 2, + SOFT_DERESET_DIGITAL = 1 << 3, + SOFT_RESET_SHIFT = 2, + + /* DDRPHY REG1 */ + PHY_DDR3 = 0, + PHY_DDR2 = 1, + PHY_LPDDR3 = 2, + PHY_LPDDR2 = 3, + + PHT_BL_8 = 1 << 2, + PHY_BL_4 = 0 << 2, + + /* DDRPHY_REG2 */ + MEMORY_SELECT_DDR3 = 0 << 0, + MEMORY_SELECT_LPDDR3 = 2 << 0, + MEMORY_SELECT_LPDDR2 = 3 << 0, + DQS_SQU_CAL_SEL_CS0_CS1 = 0 << 4, + DQS_SQU_CAL_SEL_CS1 = 1 << 4, + DQS_SQU_CAL_SEL_CS0 = 2 << 4, + DQS_SQU_CAL_NORMAL_MODE = 0 << 1, + DQS_SQU_CAL_BYPASS_MODE = 1 << 1, + DQS_SQU_CAL_START = 1 << 0, + DQS_SQU_NO_CAL = 0 << 0, +}; + +/* CK pull up/down driver strength control */ +enum { + PHY_RON_RTT_DISABLE = 0, + PHY_RON_RTT_451OHM = 1, + PHY_RON_RTT_225OHM, + PHY_RON_RTT_150OHM, + PHY_RON_RTT_112OHM, + PHY_RON_RTT_90OHM, + PHY_RON_RTT_75OHM, + PHY_RON_RTT_64OHM = 7, + + PHY_RON_RTT_56OHM = 16, + PHY_RON_RTT_50OHM, + PHY_RON_RTT_45OHM, + PHY_RON_RTT_41OHM, + PHY_RON_RTT_37OHM, + PHY_RON_RTT_34OHM, + PHY_RON_RTT_33OHM, + PHY_RON_RTT_30OHM = 23, + + PHY_RON_RTT_28OHM = 24, + PHY_RON_RTT_26OHM, + PHY_RON_RTT_25OHM, + PHY_RON_RTT_23OHM, + PHY_RON_RTT_22OHM, + PHY_RON_RTT_21OHM, + PHY_RON_RTT_20OHM, + PHY_RON_RTT_19OHM = 31, +}; + +/* DQS squelch DLL delay */ +enum { + DQS_DLL_NO_DELAY = 0, + DQS_DLL_22P5_DELAY, + DQS_DLL_45_DELAY, + DQS_DLL_67P5_DELAY, + DQS_DLL_90_DELAY, + DQS_DLL_112P5_DELAY, + DQS_DLL_135_DELAY, + DQS_DLL_157P5_DELAY, +}; + +/* GRF_SOC_CON0 */ +#define GRF_DDR_16BIT_EN (((0x1 << 0) << 16) | (0x1 << 0)) +#define GRF_DDR_32BIT_EN (((0x1 << 0) << 16) | (0x0 << 0)) +#define GRF_MSCH_NOC_16BIT_EN (((0x1 << 7) << 16) | (0x1 << 7)) +#define GRF_MSCH_NOC_32BIT_EN (((0x1 << 7) << 16) | (0x0 << 7)) + +#define GRF_DDRPHY_BUFFEREN_CORE_EN (((0x1 << 8) << 16) | (0x0 << 8)) +#define GRF_DDRPHY_BUFFEREN_CORE_DIS (((0x1 << 8) << 16) | (0x1 << 8)) + +#define GRF_DDR3_EN (((0x1 << 6) << 16) | (0x1 << 6)) +#define GRF_LPDDR2_3_EN (((0x1 << 6) << 16) | (0x0 << 6)) + +#define PHY_DRV_ODT_SET(n) (((n) << 4) | (n)) +#define DDR3_DLL_RESET (1 << 8) + +#endif /* _ASM_ARCH_SDRAM_RK322X_H */ diff --git a/arch/arm/mach-rockchip/rk322x/Makefile b/arch/arm/mach-rockchip/rk322x/Makefile index ecb3e8d..ad2711c 100644 --- a/arch/arm/mach-rockchip/rk322x/Makefile +++ b/arch/arm/mach-rockchip/rk322x/Makefile @@ -6,4 +6,5 @@
obj-y += clk_rk322x.o +obj-y += sdram_rk322x.o obj-y += syscon_rk322x.o diff --git a/arch/arm/mach-rockchip/rk322x/sdram_rk322x.c b/arch/arm/mach-rockchip/rk322x/sdram_rk322x.c new file mode 100644 index 0000000..a82f993 --- /dev/null +++ b/arch/arm/mach-rockchip/rk322x/sdram_rk322x.c @@ -0,0 +1,855 @@ +/* + * (C) Copyright 2017 Rockchip Electronics Co., Ltd + * + * SPDX-License-Identifier: GPL-2.0 + */ +#include <common.h> +#include <clk.h> +#include <dm.h> +#include <dt-structs.h> +#include <errno.h> +#include <ram.h> +#include <regmap.h> +#include <syscon.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/cru_rk322x.h> +#include <asm/arch/grf_rk322x.h> +#include <asm/arch/hardware.h> +#include <asm/arch/sdram_rk322x.h> +#include <asm/arch/timer.h> +#include <asm/arch/uart.h> +#include <asm/arch/sdram_common.h> +#include <asm/types.h> +#include <linux/err.h> + +DECLARE_GLOBAL_DATA_PTR; +struct chan_info { + struct rk322x_ddr_pctl *pctl; + struct rk322x_ddr_phy *phy; + struct rk322x_service_sys *msch; +}; + +struct dram_info { + struct chan_info chan[1]; + struct ram_info info; + struct clk ddr_clk; + struct rk322x_cru *cru; + struct rk322x_grf *grf; +}; + +struct rk322x_sdram_params { +#if CONFIG_IS_ENABLED(OF_PLATDATA) + struct dtd_rockchip_rk3228_dmc of_plat; +#endif + struct rk322x_sdram_channel ch[1]; + struct rk322x_pctl_timing pctl_timing; + struct rk322x_phy_timing phy_timing; + struct rk322x_base_params base; + int num_channels; + struct regmap *map; +}; + +#ifdef CONFIG_SPL_BUILD +/* + * [7:6] bank(n:n bit bank) + * [5:4] row(13+n) + * [3] cs(0:1 cs, 1:2 cs) + * [2:1] bank(n:n bit bank) + * [0] col(10+n) + */ +const char ddr_cfg_2_rbc[] = { + ((0 << 6) | (0 << 4) | (0 << 3) | (1 << 2) | 1), + ((0 << 6) | (1 << 4) | (0 << 3) | (1 << 2) | 1), + ((0 << 6) | (2 << 4) | (0 << 3) | (1 << 2) | 1), + ((0 << 6) | (3 << 4) | (0 << 3) | (1 << 2) | 1), + ((0 << 6) | (1 << 4) | (0 << 3) | (1 << 2) | 2), + ((0 << 6) | (2 << 4) | (0 << 3) | (1 << 2) | 2), + ((0 << 6) | (3 << 4) | (0 << 3) | (1 << 2) | 2), + ((0 << 6) | (0 << 4) | (0 << 3) | (1 << 2) | 0), + ((0 << 6) | (1 << 4) | (0 << 3) | (1 << 2) | 0), + ((0 << 6) | (2 << 4) | (0 << 3) | (1 << 2) | 0), + ((0 << 6) | (3 << 4) | (0 << 3) | (1 << 2) | 0), + ((0 << 6) | (2 << 4) | (0 << 3) | (0 << 2) | 1), + ((1 << 6) | (1 << 4) | (0 << 3) | (0 << 2) | 2), + ((1 << 6) | (1 << 4) | (0 << 3) | (0 << 2) | 1), + ((0 << 6) | (3 << 4) | (1 << 3) | (1 << 2) | 1), + ((0 << 6) | (3 << 4) | (1 << 3) | (1 << 2) | 0), +}; + +static void copy_to_reg(u32 *dest, const u32 *src, u32 n) +{ + int i; + + for (i = 0; i < n / sizeof(u32); i++) { + writel(*src, dest); + src++; + dest++; + } +} + +void phy_pctrl_reset(struct rk322x_cru *cru, + struct rk322x_ddr_phy *ddr_phy) +{ + rk_clrsetreg(&cru->cru_softrst_con[5], 1 << DDRCTRL_PSRST_SHIFT | + 1 << DDRCTRL_SRST_SHIFT | 1 << DDRPHY_PSRST_SHIFT | + 1 << DDRPHY_SRST_SHIFT, + 1 << DDRCTRL_PSRST_SHIFT | 1 << DDRCTRL_SRST_SHIFT | + 1 << DDRPHY_PSRST_SHIFT | 1 << DDRPHY_SRST_SHIFT); + + rockchip_udelay(10); + + rk_clrreg(&cru->cru_softrst_con[5], 1 << DDRPHY_PSRST_SHIFT | + 1 << DDRPHY_SRST_SHIFT); + rockchip_udelay(10); + + rk_clrreg(&cru->cru_softrst_con[5], 1 << DDRCTRL_PSRST_SHIFT | + 1 << DDRCTRL_SRST_SHIFT); + rockchip_udelay(10); + + clrbits_le32(&ddr_phy->ddrphy_reg[0], + SOFT_RESET_MASK << SOFT_RESET_SHIFT); + rockchip_udelay(10); + setbits_le32(&ddr_phy->ddrphy_reg[0], + SOFT_DERESET_ANALOG); + rockchip_udelay(5); + setbits_le32(&ddr_phy->ddrphy_reg[0], + SOFT_DERESET_DIGITAL); + + rockchip_udelay(1); +} + +void phy_dll_bypass_set(struct rk322x_ddr_phy *ddr_phy, u32 freq) +{ + u32 tmp; + + setbits_le32(&ddr_phy->ddrphy_reg[0x13], 0x10); + setbits_le32(&ddr_phy->ddrphy_reg[0x26], 0x10); + setbits_le32(&ddr_phy->ddrphy_reg[0x36], 0x10); + setbits_le32(&ddr_phy->ddrphy_reg[0x46], 0x10); + setbits_le32(&ddr_phy->ddrphy_reg[0x56], 0x10); + + clrbits_le32(&ddr_phy->ddrphy_reg[0x14], 0x8); + clrbits_le32(&ddr_phy->ddrphy_reg[0x27], 0x8); + clrbits_le32(&ddr_phy->ddrphy_reg[0x37], 0x8); + clrbits_le32(&ddr_phy->ddrphy_reg[0x47], 0x8); + clrbits_le32(&ddr_phy->ddrphy_reg[0x57], 0x8); + + if (freq <= 400) + setbits_le32(&ddr_phy->ddrphy_reg[0xa4], 0x1f); + else + clrbits_le32(&ddr_phy->ddrphy_reg[0xa4], 0x1f); + + if (freq <= 680) + tmp = 3; + else + tmp = 2; + + writel(tmp, &ddr_phy->ddrphy_reg[0x28]); + writel(tmp, &ddr_phy->ddrphy_reg[0x38]); + writel(tmp, &ddr_phy->ddrphy_reg[0x48]); + writel(tmp, &ddr_phy->ddrphy_reg[0x58]); +} + +static void send_command(struct rk322x_ddr_pctl *pctl, + u32 rank, u32 cmd, u32 arg) +{ + writel((START_CMD | (rank << 20) | arg | cmd), &pctl->mcmd); + rockchip_udelay(1); + while (readl(&pctl->mcmd) & START_CMD) + ; +} + +static void memory_init(struct chan_info *chan, + struct rk322x_sdram_params *sdram_params) +{ + struct rk322x_ddr_pctl *pctl = chan->pctl; + u32 dramtype = sdram_params->base.dramtype; + + if (dramtype == DDR3) { + send_command(pctl, 3, DESELECT_CMD, 0); + rockchip_udelay(1); + send_command(pctl, 3, PREA_CMD, 0); + send_command(pctl, 3, MRS_CMD, + (0x02 & BANK_ADDR_MASK) << BANK_ADDR_SHIFT | + (sdram_params->phy_timing.mr[2] & CMD_ADDR_MASK) << + CMD_ADDR_SHIFT); + + send_command(pctl, 3, MRS_CMD, + (0x03 & BANK_ADDR_MASK) << BANK_ADDR_SHIFT | + (sdram_params->phy_timing.mr[3] & CMD_ADDR_MASK) << + CMD_ADDR_SHIFT); + + send_command(pctl, 3, MRS_CMD, + (0x01 & BANK_ADDR_MASK) << BANK_ADDR_SHIFT | + (sdram_params->phy_timing.mr[1] & CMD_ADDR_MASK) << + CMD_ADDR_SHIFT); + + send_command(pctl, 3, MRS_CMD, + (0x00 & BANK_ADDR_MASK) << BANK_ADDR_SHIFT | + ((sdram_params->phy_timing.mr[0] | + DDR3_DLL_RESET) & + CMD_ADDR_MASK) << CMD_ADDR_SHIFT); + + send_command(pctl, 3, ZQCL_CMD, 0); + } else { + send_command(pctl, 3, MRS_CMD, + (0x63 & LPDDR23_MA_MASK) << LPDDR23_MA_SHIFT | + (0 & LPDDR23_OP_MASK) << + LPDDR23_OP_SHIFT); + rockchip_udelay(10); + send_command(pctl, 3, MRS_CMD, + (0x10 & LPDDR23_MA_MASK) << LPDDR23_MA_SHIFT | + (0xff & LPDDR23_OP_MASK) << + LPDDR23_OP_SHIFT); + rockchip_udelay(1); + send_command(pctl, 3, MRS_CMD, + (0x10 & LPDDR23_MA_MASK) << LPDDR23_MA_SHIFT | + (0xff & LPDDR23_OP_MASK) << + LPDDR23_OP_SHIFT); + rockchip_udelay(1); + send_command(pctl, 3, MRS_CMD, + (1 & LPDDR23_MA_MASK) << LPDDR23_MA_SHIFT | + (sdram_params->phy_timing.mr[1] & + LPDDR23_OP_MASK) << LPDDR23_OP_SHIFT); + send_command(pctl, 3, MRS_CMD, + (2 & LPDDR23_MA_MASK) << LPDDR23_MA_SHIFT | + (sdram_params->phy_timing.mr[2] & + LPDDR23_OP_MASK) << LPDDR23_OP_SHIFT); + send_command(pctl, 3, MRS_CMD, + (3 & LPDDR23_MA_MASK) << LPDDR23_MA_SHIFT | + (sdram_params->phy_timing.mr[3] & + LPDDR23_OP_MASK) << LPDDR23_OP_SHIFT); + if (dramtype == LPDDR3) + send_command(pctl, 3, MRS_CMD, (11 & LPDDR23_MA_MASK) << + LPDDR23_MA_SHIFT | + (sdram_params->phy_timing.mr11 & + LPDDR23_OP_MASK) << LPDDR23_OP_SHIFT); + } +} + +static u32 data_training(struct chan_info *chan) +{ + struct rk322x_ddr_phy *ddr_phy = chan->phy; + struct rk322x_ddr_pctl *pctl = chan->pctl; + u32 value; + u32 bw = (readl(&ddr_phy->ddrphy_reg[0]) >> 4) & 0xf; + u32 ret; + + /* disable auto refresh */ + value = readl(&pctl->trefi) | (1 << 31); + writel(1 << 31, &pctl->trefi); + + clrsetbits_le32(&ddr_phy->ddrphy_reg[2], 0x30, + DQS_SQU_CAL_SEL_CS0); + setbits_le32(&ddr_phy->ddrphy_reg[2], DQS_SQU_CAL_START); + + rockchip_udelay(30); + ret = readl(&ddr_phy->ddrphy_reg[0xff]); + + clrbits_le32(&ddr_phy->ddrphy_reg[2], + DQS_SQU_CAL_START); + + /* + * since data training will take about 20us, so send some auto + * refresh(about 7.8us) to complement the lost time + */ + send_command(pctl, 3, PREA_CMD, 0); + send_command(pctl, 3, REF_CMD, 0); + + writel(value, &pctl->trefi); + + if (ret & 0x10) { + ret = -1; + } else { + ret = (ret & 0xf) ^ bw; + ret = (ret == 0) ? 0 : -1; + } + return ret; +} + +static void move_to_config_state(struct rk322x_ddr_pctl *pctl) +{ + unsigned int state; + + while (1) { + state = readl(&pctl->stat) & PCTL_STAT_MASK; + switch (state) { + case LOW_POWER: + writel(WAKEUP_STATE, &pctl->sctl); + while ((readl(&pctl->stat) & PCTL_STAT_MASK) + != ACCESS) + ; + /* + * If at low power state, need wakeup first, and then + * enter the config, so fallthrough + */ + case ACCESS: + /* fallthrough */ + case INIT_MEM: + writel(CFG_STATE, &pctl->sctl); + while ((readl(&pctl->stat) & PCTL_STAT_MASK) != CONFIG) + ; + break; + case CONFIG: + return; + default: + break; + } + } +} + +static void move_to_access_state(struct rk322x_ddr_pctl *pctl) +{ + unsigned int state; + + while (1) { + state = readl(&pctl->stat) & PCTL_STAT_MASK; + switch (state) { + case LOW_POWER: + writel(WAKEUP_STATE, &pctl->sctl); + while ((readl(&pctl->stat) & PCTL_STAT_MASK) != ACCESS) + ; + break; + case INIT_MEM: + writel(CFG_STATE, &pctl->sctl); + while ((readl(&pctl->stat) & PCTL_STAT_MASK) != CONFIG) + ; + /* fallthrough */ + case CONFIG: + writel(GO_STATE, &pctl->sctl); + while ((readl(&pctl->stat) & PCTL_STAT_MASK) != ACCESS) + ; + break; + case ACCESS: + return; + default: + break; + } + } +} + +static void move_to_lowpower_state(struct rk322x_ddr_pctl *pctl) +{ + unsigned int state; + + while (1) { + state = readl(&pctl->stat) & PCTL_STAT_MASK; + switch (state) { + case INIT_MEM: + writel(CFG_STATE, &pctl->sctl); + while ((readl(&pctl->stat) & PCTL_STAT_MASK) != CONFIG) + ; + /* fallthrough */ + case CONFIG: + writel(GO_STATE, &pctl->sctl); + while ((readl(&pctl->stat) & PCTL_STAT_MASK) != ACCESS) + ; + break; + case ACCESS: + writel(SLEEP_STATE, &pctl->sctl); + while ((readl(&pctl->stat) & PCTL_STAT_MASK) != + LOW_POWER) + ; + break; + case LOW_POWER: + return; + default: + break; + } + } +} + +/* pctl should in low power mode when call this function */ +static void phy_softreset(struct dram_info *dram) +{ + struct rk322x_ddr_phy *ddr_phy = dram->chan[0].phy; + struct rk322x_grf *grf = dram->grf; + + writel(GRF_DDRPHY_BUFFEREN_CORE_EN, &grf->soc_con[0]); + clrbits_le32(&ddr_phy->ddrphy_reg[0], 0x3 << 2); + rockchip_udelay(1); + setbits_le32(&ddr_phy->ddrphy_reg[0], 1 << 2); + rockchip_udelay(5); + setbits_le32(&ddr_phy->ddrphy_reg[0], 1 << 3); + writel(GRF_DDRPHY_BUFFEREN_CORE_DIS, &grf->soc_con[0]); +} + +/* bw: 2: 32bit, 1:16bit */ +static void set_bw(struct dram_info *dram, u32 bw) +{ + struct rk322x_ddr_pctl *pctl = dram->chan[0].pctl; + struct rk322x_ddr_phy *ddr_phy = dram->chan[0].phy; + struct rk322x_grf *grf = dram->grf; + + if (bw == 1) { + setbits_le32(&pctl->ppcfg, 1); + clrbits_le32(&ddr_phy->ddrphy_reg[0], 0xc << 4); + writel(GRF_MSCH_NOC_16BIT_EN, &grf->soc_con[0]); + clrbits_le32(&ddr_phy->ddrphy_reg[0x46], 0x8); + clrbits_le32(&ddr_phy->ddrphy_reg[0x56], 0x8); + } else { + clrbits_le32(&pctl->ppcfg, 1); + setbits_le32(&ddr_phy->ddrphy_reg[0], 0xf << 4); + writel(GRF_DDR_32BIT_EN | GRF_MSCH_NOC_32BIT_EN, + &grf->soc_con[0]); + setbits_le32(&ddr_phy->ddrphy_reg[0x46], 0x8); + setbits_le32(&ddr_phy->ddrphy_reg[0x56], 0x8); + } +} + +static void pctl_cfg(struct rk322x_ddr_pctl *pctl, + struct rk322x_sdram_params *sdram_params, + struct rk322x_grf *grf) +{ + u32 burst_len; + u32 bw; + u32 dramtype = sdram_params->base.dramtype; + + if (sdram_params->ch[0].bw == 2) + bw = GRF_DDR_32BIT_EN | GRF_MSCH_NOC_32BIT_EN; + else + bw = GRF_MSCH_NOC_16BIT_EN; + + writel(DFI_INIT_START | DFI_DATA_BYTE_DISABLE_EN, &pctl->dfistcfg0); + writel(DFI_DRAM_CLK_SR_EN | DFI_DRAM_CLK_DPD_EN, &pctl->dfistcfg1); + writel(DFI_PARITY_INTR_EN | DFI_PARITY_EN, &pctl->dfistcfg2); + writel(0x51010, &pctl->dfilpcfg0); + + writel(1, &pctl->dfitphyupdtype0); + writel(0x0d, &pctl->dfitphyrdlat); + writel(0, &pctl->dfitphywrdata); + + writel(0, &pctl->dfiupdcfg); + copy_to_reg(&pctl->togcnt1u, &sdram_params->pctl_timing.togcnt1u, + sizeof(struct rk322x_pctl_timing)); + if (dramtype == DDR3) { + writel((1 << 3) | (1 << 11), + &pctl->dfiodtcfg); + writel(7 << 16, &pctl->dfiodtcfg1); + writel((readl(&pctl->tcl) - 1) / 2 - 1, &pctl->dfitrddataen); + writel((readl(&pctl->tcwl) - 1) / 2 - 1, &pctl->dfitphywrlat); + writel(500, &pctl->trsth); + writel(0 << MDDR_LPDDR2_CLK_STOP_IDLE_SHIFT | DDR3_EN | + DDR2_DDR3_BL_8 | (6 - 4) << TFAW_SHIFT | PD_EXIT_SLOW | + 1 << PD_TYPE_SHIFT | 0 << PD_IDLE_SHIFT, + &pctl->mcfg); + writel(bw | GRF_DDR3_EN, &grf->soc_con[0]); + } else { + if (sdram_params->phy_timing.bl & PHT_BL_8) + burst_len = MDDR_LPDDR2_BL_8; + else + burst_len = MDDR_LPDDR2_BL_4; + + writel(readl(&pctl->tcl) / 2 - 1, &pctl->dfitrddataen); + writel(readl(&pctl->tcwl) / 2 - 1, &pctl->dfitphywrlat); + writel(0, &pctl->trsth); + if (dramtype == LPDDR2) { + writel(0 << MDDR_LPDDR2_CLK_STOP_IDLE_SHIFT | + LPDDR2_S4 | LPDDR2_EN | burst_len | + (6 - 4) << TFAW_SHIFT | PD_EXIT_FAST | + 1 << PD_TYPE_SHIFT | 0 << PD_IDLE_SHIFT, + &pctl->mcfg); + writel(0, &pctl->dfiodtcfg); + writel(0, &pctl->dfiodtcfg1); + } else { + writel(0 << MDDR_LPDDR2_CLK_STOP_IDLE_SHIFT | + LPDDR2_S4 | LPDDR3_EN | burst_len | + (6 - 4) << TFAW_SHIFT | PD_EXIT_FAST | + 1 << PD_TYPE_SHIFT | 0 << PD_IDLE_SHIFT, + &pctl->mcfg); + writel((1 << 3) | (1 << 2), &pctl->dfiodtcfg); + writel((7 << 16) | 4, &pctl->dfiodtcfg1); + } + writel(bw | GRF_LPDDR2_3_EN, &grf->soc_con[0]); + } + setbits_le32(&pctl->scfg, 1); +} + +static void phy_cfg(struct chan_info *chan, + struct rk322x_sdram_params *sdram_params) +{ + struct rk322x_ddr_phy *ddr_phy = chan->phy; + struct rk322x_service_sys *axi_bus = chan->msch; + struct rk322x_msch_timings *noc_timing = &sdram_params->base.noc_timing; + struct rk322x_phy_timing *phy_timing = &sdram_params->phy_timing; + struct rk322x_pctl_timing *pctl_timing = &sdram_params->pctl_timing; + u32 cmd_drv, clk_drv, dqs_drv, dqs_odt; + + writel(noc_timing->ddrtiming, &axi_bus->ddrtiming); + writel(noc_timing->ddrmode, &axi_bus->ddrmode); + writel(noc_timing->readlatency, &axi_bus->readlatency); + writel(noc_timing->activate, &axi_bus->activate); + writel(noc_timing->devtodev, &axi_bus->devtodev); + + switch (sdram_params->base.dramtype) { + case DDR3: + writel(PHY_DDR3 | phy_timing->bl, &ddr_phy->ddrphy_reg[1]); + break; + case LPDDR2: + writel(PHY_LPDDR2 | phy_timing->bl, &ddr_phy->ddrphy_reg[1]); + break; + default: + writel(PHY_LPDDR2 | phy_timing->bl, &ddr_phy->ddrphy_reg[1]); + break; + } + + writel(phy_timing->cl_al, &ddr_phy->ddrphy_reg[0xb]); + writel(pctl_timing->tcwl, &ddr_phy->ddrphy_reg[0xc]); + + cmd_drv = PHY_RON_RTT_34OHM; + clk_drv = PHY_RON_RTT_45OHM; + dqs_drv = PHY_RON_RTT_34OHM; + if (sdram_params->base.dramtype == LPDDR2) + dqs_odt = PHY_RON_RTT_DISABLE; + else + dqs_odt = PHY_RON_RTT_225OHM; + + writel(cmd_drv, &ddr_phy->ddrphy_reg[0x11]); + clrsetbits_le32(&ddr_phy->ddrphy_reg[0x12], (0x1f << 3), cmd_drv << 3); + writel(clk_drv, &ddr_phy->ddrphy_reg[0x16]); + writel(clk_drv, &ddr_phy->ddrphy_reg[0x18]); + + writel(dqs_drv, &ddr_phy->ddrphy_reg[0x20]); + writel(dqs_drv, &ddr_phy->ddrphy_reg[0x2f]); + writel(dqs_drv, &ddr_phy->ddrphy_reg[0x30]); + writel(dqs_drv, &ddr_phy->ddrphy_reg[0x3f]); + writel(dqs_drv, &ddr_phy->ddrphy_reg[0x40]); + writel(dqs_drv, &ddr_phy->ddrphy_reg[0x4f]); + writel(dqs_drv, &ddr_phy->ddrphy_reg[0x50]); + writel(dqs_drv, &ddr_phy->ddrphy_reg[0x5f]); + + writel(dqs_odt, &ddr_phy->ddrphy_reg[0x21]); + writel(dqs_odt, &ddr_phy->ddrphy_reg[0x2e]); + writel(dqs_odt, &ddr_phy->ddrphy_reg[0x31]); + writel(dqs_odt, &ddr_phy->ddrphy_reg[0x3e]); + writel(dqs_odt, &ddr_phy->ddrphy_reg[0x41]); + writel(dqs_odt, &ddr_phy->ddrphy_reg[0x4e]); + writel(dqs_odt, &ddr_phy->ddrphy_reg[0x51]); + writel(dqs_odt, &ddr_phy->ddrphy_reg[0x5e]); +} + +void dram_cfg_rbc(struct chan_info *chan, + struct rk322x_sdram_params *sdram_params) +{ + char noc_config; + int i = 0; + struct rk322x_sdram_channel *config = &sdram_params->ch[0]; + struct rk322x_service_sys *axi_bus = chan->msch; + + move_to_config_state(chan->pctl); + + if ((config->rank == 2) && (config->cs1_row == config->cs0_row)) { + if ((config->col + config->bw) == 12) { + i = 14; + goto finish; + } else if ((config->col + config->bw) == 11) { + i = 15; + goto finish; + } + } + noc_config = ((config->cs0_row - 13) << 4) | ((config->bk - 2) << 2) | + (config->col + config->bw - 11); + for (i = 0; i < 11; i++) { + if (noc_config == ddr_cfg_2_rbc[i]) + break; + } + + if (i < 11) + goto finish; + + noc_config = ((config->bk - 2) << 6) | ((config->cs0_row - 13) << 4) | + (config->col + config->bw - 11); + + for (i = 11; i < 14; i++) { + if (noc_config == ddr_cfg_2_rbc[i]) + break; + } + if (i < 14) + goto finish; + else + i = 0; + +finish: + writel(i, &axi_bus->ddrconf); + move_to_access_state(chan->pctl); +} + +static void dram_all_config(const struct dram_info *dram, + struct rk322x_sdram_params *sdram_params) +{ + struct rk322x_sdram_channel *info = &sdram_params->ch[0]; + u32 sys_reg = 0; + + sys_reg |= sdram_params->base.dramtype << SYS_REG_DDRTYPE_SHIFT; + sys_reg |= (1 - 1) << SYS_REG_NUM_CH_SHIFT; + sys_reg |= info->row_3_4 << SYS_REG_ROW_3_4_SHIFT(0); + sys_reg |= 1 << SYS_REG_CHINFO_SHIFT(0); + sys_reg |= (info->rank - 1) << SYS_REG_RANK_SHIFT(0); + sys_reg |= (info->col - 9) << SYS_REG_COL_SHIFT(0); + sys_reg |= info->bk == 3 ? 0 : 1 << SYS_REG_BK_SHIFT(0); + sys_reg |= (info->cs0_row - 13) << SYS_REG_CS0_ROW_SHIFT(0); + sys_reg |= (info->cs1_row - 13) << SYS_REG_CS1_ROW_SHIFT(0); + sys_reg |= (2 >> info->bw) << SYS_REG_BW_SHIFT(0); + sys_reg |= (2 >> info->dbw) << SYS_REG_DBW_SHIFT(0); + + writel(sys_reg, &dram->grf->os_reg[2]); +} + +#define TEST_PATTEN 0x5aa5f00f + +static int dram_cap_detect(struct dram_info *dram, + struct rk322x_sdram_params *sdram_params) +{ + u32 bw, row, col, addr; + u32 ret = 0; + struct rk322x_service_sys *axi_bus = dram->chan[0].msch; + + if (sdram_params->base.dramtype == DDR3) + sdram_params->ch[0].dbw = 1; + else + sdram_params->ch[0].dbw = 2; + + move_to_config_state(dram->chan[0].pctl); + /* bw detect */ + set_bw(dram, 2); + if (data_training(&dram->chan[0]) == 0) { + bw = 2; + } else { + bw = 1; + set_bw(dram, 1); + move_to_lowpower_state(dram->chan[0].pctl); + phy_softreset(dram); + move_to_config_state(dram->chan[0].pctl); + if (data_training(&dram->chan[0])) { + printf("BW detect error\n"); + ret = -EINVAL; + } + } + sdram_params->ch[0].bw = bw; + sdram_params->ch[0].bk = 3; + + if (bw == 2) + writel(6, &axi_bus->ddrconf); + else + writel(3, &axi_bus->ddrconf); + move_to_access_state(dram->chan[0].pctl); + for (col = 11; col >= 9; col--) { + writel(0, CONFIG_SYS_SDRAM_BASE); + addr = CONFIG_SYS_SDRAM_BASE + + (1 << (col + bw - 1)); + writel(TEST_PATTEN, addr); + if ((readl(addr) == TEST_PATTEN) && + (readl(CONFIG_SYS_SDRAM_BASE) == 0)) + break; + } + if (col == 8) { + printf("Col detect error\n"); + ret = -EINVAL; + goto out; + } else { + sdram_params->ch[0].col = col; + } + + writel(10, &axi_bus->ddrconf); + + /* Detect row*/ + for (row = 16; row >= 12; row--) { + writel(0, CONFIG_SYS_SDRAM_BASE); + addr = CONFIG_SYS_SDRAM_BASE + (1u << (row + 11 + 3 - 1)); + writel(TEST_PATTEN, addr); + if ((readl(addr) == TEST_PATTEN) && + (readl(CONFIG_SYS_SDRAM_BASE) == 0)) + break; + } + if (row == 11) { + printf("Row detect error\n"); + ret = -EINVAL; + } else { + sdram_params->ch[0].cs1_row = row; + sdram_params->ch[0].row_3_4 = 0; + sdram_params->ch[0].cs0_row = row; + } + /* cs detect */ + writel(0, CONFIG_SYS_SDRAM_BASE); + writel(TEST_PATTEN, CONFIG_SYS_SDRAM_BASE + (1u << 30)); + writel(~TEST_PATTEN, CONFIG_SYS_SDRAM_BASE + (1u << 30) + 4); + if ((readl(CONFIG_SYS_SDRAM_BASE + (1u << 30)) == TEST_PATTEN) && + (readl(CONFIG_SYS_SDRAM_BASE) == 0)) + sdram_params->ch[0].rank = 2; + else + sdram_params->ch[0].rank = 1; +out: + return ret; +} + +static int sdram_init(struct dram_info *dram, + struct rk322x_sdram_params *sdram_params) +{ + int ret; + + ret = clk_set_rate(&dram->ddr_clk, + sdram_params->base.ddr_freq * MHz * 2); + if (ret < 0) { + printf("Could not set DDR clock\n"); + return ret; + } + + phy_pctrl_reset(dram->cru, dram->chan[0].phy); + phy_dll_bypass_set(dram->chan[0].phy, sdram_params->base.ddr_freq); + pctl_cfg(dram->chan[0].pctl, sdram_params, dram->grf); + phy_cfg(&dram->chan[0], sdram_params); + writel(POWER_UP_START, &dram->chan[0].pctl->powctl); + while (!(readl(&dram->chan[0].pctl->powstat) & POWER_UP_DONE)) + ; + memory_init(&dram->chan[0], sdram_params); + move_to_access_state(dram->chan[0].pctl); + ret = dram_cap_detect(dram, sdram_params); + if (ret) + goto out; + dram_cfg_rbc(&dram->chan[0], sdram_params); + dram_all_config(dram, sdram_params); +out: + return ret; +} + +static int rk322x_dmc_ofdata_to_platdata(struct udevice *dev) +{ +#if !CONFIG_IS_ENABLED(OF_PLATDATA) + struct rk322x_sdram_params *params = dev_get_platdata(dev); + const void *blob = gd->fdt_blob; + int node = dev_of_offset(dev); + int ret; + + params->num_channels = 1; + + ret = fdtdec_get_int_array(blob, node, "rockchip,pctl-timing", + (u32 *)¶ms->pctl_timing, + sizeof(params->pctl_timing) / sizeof(u32)); + if (ret) { + printf("%s: Cannot read rockchip,pctl-timing\n", __func__); + return -EINVAL; + } + ret = fdtdec_get_int_array(blob, node, "rockchip,phy-timing", + (u32 *)¶ms->phy_timing, + sizeof(params->phy_timing) / sizeof(u32)); + if (ret) { + printf("%s: Cannot read rockchip,phy-timing\n", __func__); + return -EINVAL; + } + ret = fdtdec_get_int_array(blob, node, "rockchip,sdram-params", + (u32 *)¶ms->base, + sizeof(params->base) / sizeof(u32)); + if (ret) { + printf("%s: Cannot read rockchip,sdram-params\n", __func__); + return -EINVAL; + } + ret = regmap_init_mem(dev, ¶ms->map); + if (ret) + return ret; +#endif + + return 0; +} +#endif /* CONFIG_SPL_BUILD */ + +#if CONFIG_IS_ENABLED(OF_PLATDATA) +static int conv_of_platdata(struct udevice *dev) +{ + struct rk322x_sdram_params *plat = dev_get_platdata(dev); + struct dtd_rockchip_rk322x_dmc *of_plat = &plat->of_plat; + int ret; + + memcpy(&plat->pctl_timing, of_plat->rockchip_pctl_timing, + sizeof(plat->pctl_timing)); + memcpy(&plat->phy_timing, of_plat->rockchip_phy_timing, + sizeof(plat->phy_timing)); + memcpy(&plat->base, of_plat->rockchip_sdram_params, sizeof(plat->base)); + + plat->num_channels = 1; + ret = regmap_init_mem_platdata(dev, of_plat->reg, + ARRAY_SIZE(of_plat->reg) / 2, + &plat->map); + if (ret) + return ret; + + return 0; +} +#endif + +static int rk322x_dmc_probe(struct udevice *dev) +{ +#ifdef CONFIG_SPL_BUILD + struct rk322x_sdram_params *plat = dev_get_platdata(dev); + int ret; + struct udevice *dev_clk; +#endif + struct dram_info *priv = dev_get_priv(dev); + + priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF); +#ifdef CONFIG_SPL_BUILD +#if CONFIG_IS_ENABLED(OF_PLATDATA) + ret = conv_of_platdata(dev); + if (ret) + return ret; +#endif + + priv->chan[0].msch = syscon_get_first_range(ROCKCHIP_SYSCON_MSCH); + priv->chan[0].pctl = regmap_get_range(plat->map, 0); + priv->chan[0].phy = regmap_get_range(plat->map, 1); + ret = rockchip_get_clk(&dev_clk); + if (ret) + return ret; + priv->ddr_clk.id = CLK_DDR; + ret = clk_request(dev_clk, &priv->ddr_clk); + if (ret) + return ret; + + priv->cru = rockchip_get_cru(); + if (IS_ERR(priv->cru)) + return PTR_ERR(priv->cru); + ret = sdram_init(priv, plat); + if (ret) + return ret; +#else + priv->info.base = CONFIG_SYS_SDRAM_BASE; + priv->info.size = rockchip_sdram_size( + (phys_addr_t)&priv->grf->os_reg[2]); +#endif + + return 0; +} + +static int rk322x_dmc_get_info(struct udevice *dev, struct ram_info *info) +{ + struct dram_info *priv = dev_get_priv(dev); + + *info = priv->info; + + return 0; +} + +static struct ram_ops rk322x_dmc_ops = { + .get_info = rk322x_dmc_get_info, +}; + +static const struct udevice_id rk322x_dmc_ids[] = { + { .compatible = "rockchip,rk3228-dmc" }, + { } +}; + +U_BOOT_DRIVER(dmc_rk322x) = { + .name = "rockchip_rk322x_dmc", + .id = UCLASS_RAM, + .of_match = rk322x_dmc_ids, + .ops = &rk322x_dmc_ops, +#ifdef CONFIG_SPL_BUILD + .ofdata_to_platdata = rk322x_dmc_ofdata_to_platdata, +#endif + .probe = rk322x_dmc_probe, + .priv_auto_alloc_size = sizeof(struct dram_info), +#ifdef CONFIG_SPL_BUILD + .platdata_auto_alloc_size = sizeof(struct rk322x_sdram_params), +#endif +}; +