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ram: rockchip: add phy driver code for PX30

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This sdram_phy_px30.c is based on PX30 SoC, the functions are common
for phy, other SoCs with similar hardware could re-use it.

Signed-off-by: YouMin Chen <cym@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Kever Yang
2019-11-15 11:04:41 +08:00
parent 09d7872336
commit 691368c7f7
3 changed files with 326 additions and 0 deletions
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62
arch/arm/include/asm/arch-rockchip/sdram_phy_px30.h Normal file
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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2018 Rockchip Electronics Co., Ltd
*/
#ifndef _ASM_ARCH_SDRAM_PHY_PX30_H
#define _ASM_ARCH_SDRAM_PHY_PX30_H
#include <asm/arch-rockchip/sdram_common.h>
#include <asm/arch-rockchip/sdram_phy_ron_rtt_px30.h>
struct ddr_phy_regs {
u32 phy[5][2];
};
#define PHY_REG(base, n) ((base) + 4 * (n))
/* 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)
struct ddr_phy_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];
};
void phy_soft_reset(void __iomem *phy_base);
void phy_dram_set_bw(void __iomem *phy_base, u32 bw);
void phy_cfg(void __iomem *phy_base,
struct ddr_phy_regs *phy_regs, struct ddr_phy_skew *skew,
struct sdram_base_params *base, u32 bw);
int phy_data_training(void __iomem *phy_base, u32 cs, u32 dramtype);
#endif

59
arch/arm/include/asm/arch-rockchip/sdram_phy_ron_rtt_px30.h Normal file
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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2018 Rockchip Electronics Co., Ltd
*/
#ifndef _ASM_ARCH_SDRAM_PHY_RON_RTT_PX30_H
#define _ASM_ARCH_SDRAM_PHY_RON_RTT_PX30_H
#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)
#endif