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e869b3485c
Add DDR driver for Rockchip RV1126 SoC. Signed-off-by: YouMin Chen <cym@rock-chips.com> Signed-off-by: Jagan Teki <jagan@edgeble.ai> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
93 lines
2.4 KiB
C
93 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2020 Rockchip Electronics Co., Ltd
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*/
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#ifndef _ASM_ARCH_SDRAM_RK1126_PHY_H
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#define _ASM_ARCH_SDRAM_RK1126_PHY_H
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/* PHY_REG0 */
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#define DIGITAL_DERESET BIT(3)
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#define ANALOG_DERESET BIT(2)
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#define DIGITAL_RESET (0 << 3)
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#define ANALOG_RESET (0 << 2)
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/* PHY_REG1 */
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#define PHY_DDR2 (0)
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#define PHY_LPDDR2 (1)
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#define PHY_DDR3 (2)
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#define PHY_LPDDR3 (3)
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#define PHY_DDR4 (4)
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#define PHY_DDR5 (5)
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#define PHY_BL_4 (0 << 3)
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#define PHY_BL_8_OR_16 BIT(3)
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/* PHY_REG2 */
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#define PHY_DTT_EN BIT(0)
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#define PHY_DTT_DISB (0 << 0)
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#define PHY_WRITE_LEVELING_EN BIT(2)
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#define PHY_WRITE_LEVELING_DISB (0 << 2)
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#define PHY_SELECT_CS0 (2)
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#define PHY_SELECT_CS1 (1)
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#define PHY_SELECT_CS0_1 (0)
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#define PHY_WRITE_LEVELING_SELECTCS(n) ((n) << 6)
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#define PHY_DATA_TRAINING_SELECTCS(n) ((n) << 4)
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/* PHY_REGf */
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#define PHY_DQ_WIDTH_MASK (0xf)
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/* PHY_REG51 */
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#define PHY_PBDIV_BIT9_MASK BIT(0)
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#define PHY_PBDIV_BIT9_SHIFT (0)
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#define PHY_POSTDIV_EN_MASK BIT(7)
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#define PHY_POSTDIV_EN_SHIFT (7)
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/* PHY_REG52 */
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#define PHY_PREDIV_MASK (0x1F)
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#define PHY_PREDIV_SHIFT (0)
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/* PHY_REG53*/
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#define PHY_POSTDIV_MASK (0x7)
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#define PHY_POSTDIV_SHIFT (5)
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#define PHY_PD_DISB BIT(3)
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/* PHY_REG90 */
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#define PHY_PLL_LOCK BIT(2)
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struct ca_skew {
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u32 a0_a3_a3_cke1_a_de_skew;
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u32 a1_ba1_null_cke0_b_de_skew;
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u32 a2_a9_a9_a4_a_de_skew;
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u32 a3_a15_null_a5_b_de_skew;
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u32 a4_a6_a6_ck_a_de_skew;
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u32 a5_a12_null_odt0_b_de_skew;
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u32 a6_ba2_null_a0_a_de_skew;
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u32 a7_a4_a4_odt0_a_de_skew;
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u32 a8_a1_a1_cke0_a_de_skew;
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u32 a9_a5_a5_a5_a_de_skew;
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u32 a10_a8_a8_clkb_a_de_skew;
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u32 a11_a7_a7_ca2_a_de_skew;
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u32 a12_rasn_null_ca1_a_de_skew;
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u32 a13_a13_null_ca3_a_de_skew;
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u32 a14_a14_null_csb1_b_de_skew;
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u32 a15_a10_null_ca0_b_de_skew;
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u32 a16_a11_null_csb0_b_de_skew;
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u32 a17_null_null_null_de_skew;
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u32 ba0_csb1_csb1_csb0_a_de_skew;
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u32 ba1_wen_null_cke1_b_de_skew;
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u32 bg0_odt1_odt1_csb1_a_de_skew;
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u32 bg1_a2_a2_odt1_a_de_skew;
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u32 cke0_casb_null_ca1_b_de_skew;
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u32 ck_ck_ck_ck_b_de_skew;
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u32 ckb_ckb_ckb_ckb_b_de_skew;
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u32 csb0_odt0_odt0_ca2_b_de_skew;
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u32 odt0_csb0_csb0_ca4_b_de_skew;
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u32 resetn_resetn_null_resetn_de_skew;
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u32 actn_cke_cke_ca3_b_de_skew;
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u32 null_null_null_null_de_skew;
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u32 csb1_ba0_null_null_de_skew;
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u32 odt1_a0_a0_odt1_b_de_skew;
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};
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#define PHY_REG(base, n) ((base) + 4 * (n))
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#endif /* _ASM_ARCH_SDRAM_RK1126_PHY_H */
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