1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * Copyright (c) 2016 Google, Inc
4  */
5 #ifndef _ASM_ARCH_SDRAM_AST2500_H
6 #define _ASM_ARCH_SDRAM_AST2500_H
7 
8 #define SDRAM_UNLOCK_KEY		0xfc600309
9 #define SDRAM_VIDEO_UNLOCK_KEY		0x2003000f
10 
11 #define SDRAM_PCR_CKE_EN		(1 << 0)
12 #define SDRAM_PCR_AUTOPWRDN_EN		(1 << 1)
13 #define SDRAM_PCR_CKE_DELAY_SHIFT	4
14 #define SDRAM_PCR_CKE_DELAY_MASK	7
15 #define SDRAM_PCR_RESETN_DIS		(1 << 7)
16 #define SDRAM_PCR_ODT_EN		(1 << 8)
17 #define SDRAM_PCR_ODT_AUTO_ON		(1 << 10)
18 #define SDRAM_PCR_ODT_EXT_EN		(1 << 11)
19 #define SDRAM_PCR_TCKE_PW_SHIFT		12
20 #define SDRAM_PCR_TCKE_PW_MASK		7
21 #define SDRAM_PCR_RGAP_CTRL_EN		(1 << 15)
22 #define SDRAM_PCR_MREQI_DIS		(1 << 17)
23 
24 /* Fixed priority DRAM Requests mask */
25 #define SDRAM_REQ_VGA_HW_CURSOR		(1 << 0)
26 #define SDRAM_REQ_VGA_TEXT_CG_FONT	(1 << 1)
27 #define SDRAM_REQ_VGA_TEXT_ASCII	(1 << 2)
28 #define SDRAM_REQ_VGA_CRT		(1 << 3)
29 #define SDRAM_REQ_SOC_DC_CURSOR		(1 << 4)
30 #define SDRAM_REQ_SOC_DC_OCD		(1 << 5)
31 #define SDRAM_REQ_SOC_DC_CRT		(1 << 6)
32 #define SDRAM_REQ_VIDEO_HIPRI_WRITE	(1 << 7)
33 #define SDRAM_REQ_USB20_EHCI1		(1 << 8)
34 #define SDRAM_REQ_USB20_EHCI2		(1 << 9)
35 #define SDRAM_REQ_CPU			(1 << 10)
36 #define SDRAM_REQ_AHB2			(1 << 11)
37 #define SDRAM_REQ_AHB			(1 << 12)
38 #define SDRAM_REQ_MAC0			(1 << 13)
39 #define SDRAM_REQ_MAC1			(1 << 14)
40 #define SDRAM_REQ_PCIE			(1 << 16)
41 #define SDRAM_REQ_XDMA			(1 << 17)
42 #define SDRAM_REQ_ENCRYPTION		(1 << 18)
43 #define SDRAM_REQ_VIDEO_FLAG		(1 << 21)
44 #define SDRAM_REQ_VIDEO_LOW_PRI_WRITE	(1 << 28)
45 #define SDRAM_REQ_2D_RW			(1 << 29)
46 #define SDRAM_REQ_MEMCHECK		(1 << 30)
47 
48 #define SDRAM_ICR_RESET_ALL		(1 << 31)
49 
50 #define SDRAM_CONF_CAP_SHIFT		0
51 #define SDRAM_CONF_CAP_MASK		3
52 #define SDRAM_CONF_DDR4			(1 << 4)
53 #define SDRAM_CONF_SCRAMBLE		(1 << 8)
54 #define SDRAM_CONF_SCRAMBLE_PAT2	(1 << 9)
55 #define SDRAM_CONF_CACHE_EN		(1 << 10)
56 #define SDRAM_CONF_CACHE_INIT_EN	(1 << 12)
57 #define SDRAM_CONF_DUALX8		(1 << 13)
58 #define SDRAM_CONF_CACHE_INIT_DONE	(1 << 19)
59 
60 #define SDRAM_CONF_CAP_128M		0
61 #define SDRAM_CONF_CAP_256M		1
62 #define SDRAM_CONF_CAP_512M		2
63 #define SDRAM_CONF_CAP_1024M		3
64 
65 #define SDRAM_MISC_DDR4_TREFRESH	(1 << 3)
66 
67 #define SDRAM_PHYCTRL0_INIT		(1 << 0)
68 #define SDRAM_PHYCTRL0_AUTO_UPDATE	(1 << 1)
69 #define SDRAM_PHYCTRL0_NRST		(1 << 2)
70 
71 #define SDRAM_REFRESH_CYCLES_SHIFT	0
72 #define SDRAM_REFRESH_CYCLES_MASK	0xf
73 #define SDRAM_REFRESH_ZQCS_EN		(1 << 7)
74 #define SDRAM_REFRESH_PERIOD_SHIFT	8
75 #define SDRAM_REFRESH_PERIOD_MASK	0xf
76 
77 #define SDRAM_TEST_LEN_SHIFT		4
78 #define SDRAM_TEST_LEN_MASK		0xfffff
79 #define SDRAM_TEST_START_ADDR_SHIFT	24
80 #define SDRAM_TEST_START_ADDR_MASK	0x3f
81 
82 #define SDRAM_TEST_EN			(1 << 0)
83 #define SDRAM_TEST_MODE_SHIFT		1
84 #define SDRAM_TEST_MODE_MASK		3
85 #define SDRAM_TEST_MODE_WO		0
86 #define SDRAM_TEST_MODE_RB		1
87 #define SDRAM_TEST_MODE_RW		2
88 #define SDRAM_TEST_GEN_MODE_SHIFT	3
89 #define SDRAM_TEST_GEN_MODE_MASK	7
90 #define SDRAM_TEST_TWO_MODES		(1 << 6)
91 #define SDRAM_TEST_ERRSTOP		(1 << 7)
92 #define SDRAM_TEST_DONE			(1 << 12)
93 #define SDRAM_TEST_FAIL			(1 << 13)
94 
95 #define SDRAM_AC_TRFC_SHIFT		0
96 #define SDRAM_AC_TRFC_MASK		0xff
97 
98 #ifndef __ASSEMBLY__
99 
100 struct ast2500_sdrammc_regs {
101 	u32 protection_key;
102 	u32 config;
103 	u32 gm_protection_key;
104 	u32 refresh_timing;
105 	u32 ac_timing[3];
106 	u32 misc_control;
107 	u32 mr46_mode_setting;
108 	u32 mr5_mode_setting;
109 	u32 mode_setting_control;
110 	u32 mr02_mode_setting;
111 	u32 mr13_mode_setting;
112 	u32 power_control;
113 	u32 req_limit_mask;
114 	u32 pri_group_setting;
115 	u32 max_grant_len[4];
116 	u32 intr_ctrl;
117 	u32 ecc_range_ctrl;
118 	u32 first_ecc_err_addr;
119 	u32 last_ecc_err_addr;
120 	u32 phy_ctrl[4];
121 	u32 ecc_test_ctrl;
122 	u32 test_addr;
123 	u32 test_fail_dq_bit;
124 	u32 test_init_val;
125 	u32 phy_debug_ctrl;
126 	u32 phy_debug_data;
127 	u32 reserved1[30];
128 	u32 scu_passwd;
129 	u32 reserved2[7];
130 	u32 scu_mpll;
131 	u32 reserved3[19];
132 	u32 scu_hwstrap;
133 };
134 
135 #endif  /* __ASSEMBLY__ */
136 
137 #endif  /* _ASM_ARCH_SDRAM_AST2500_H */
138