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fsl-layerscape: Add workaround for PCIe erratum A010315
[u-boot] / arch / arm / cpu / armv7 / ls102xa / soc.c
1 /*
2  * Copyright 2015 Freescale Semiconductor, Inc.
3  *
4  * SPDX-License-Identifier:     GPL-2.0+
5  */
6
7 #include <common.h>
8 #include <asm/arch/clock.h>
9 #include <asm/io.h>
10 #include <asm/arch/fsl_serdes.h>
11 #include <asm/arch/immap_ls102xa.h>
12 #include <asm/arch/ls102xa_soc.h>
13 #include <asm/arch/ls102xa_stream_id.h>
14 #include <fsl_csu.h>
15
16 struct liodn_id_table sec_liodn_tbl[] = {
17         SET_SEC_JR_LIODN_ENTRY(0, 0x10, 0x10),
18         SET_SEC_JR_LIODN_ENTRY(1, 0x10, 0x10),
19         SET_SEC_JR_LIODN_ENTRY(2, 0x10, 0x10),
20         SET_SEC_JR_LIODN_ENTRY(3, 0x10, 0x10),
21         SET_SEC_RTIC_LIODN_ENTRY(a, 0x10),
22         SET_SEC_RTIC_LIODN_ENTRY(b, 0x10),
23         SET_SEC_RTIC_LIODN_ENTRY(c, 0x10),
24         SET_SEC_RTIC_LIODN_ENTRY(d, 0x10),
25         SET_SEC_DECO_LIODN_ENTRY(0, 0x10, 0x10),
26         SET_SEC_DECO_LIODN_ENTRY(1, 0x10, 0x10),
27         SET_SEC_DECO_LIODN_ENTRY(2, 0x10, 0x10),
28         SET_SEC_DECO_LIODN_ENTRY(3, 0x10, 0x10),
29         SET_SEC_DECO_LIODN_ENTRY(4, 0x10, 0x10),
30         SET_SEC_DECO_LIODN_ENTRY(5, 0x10, 0x10),
31         SET_SEC_DECO_LIODN_ENTRY(6, 0x10, 0x10),
32         SET_SEC_DECO_LIODN_ENTRY(7, 0x10, 0x10),
33 };
34
35 struct smmu_stream_id dev_stream_id[] = {
36         { 0x100, 0x01, "ETSEC MAC1" },
37         { 0x104, 0x02, "ETSEC MAC2" },
38         { 0x108, 0x03, "ETSEC MAC3" },
39         { 0x10c, 0x04, "PEX1" },
40         { 0x110, 0x05, "PEX2" },
41         { 0x114, 0x06, "qDMA" },
42         { 0x118, 0x07, "SATA" },
43         { 0x11c, 0x08, "USB3" },
44         { 0x120, 0x09, "QE" },
45         { 0x124, 0x0a, "eSDHC" },
46         { 0x128, 0x0b, "eMA" },
47         { 0x14c, 0x0c, "2D-ACE" },
48         { 0x150, 0x0d, "USB2" },
49         { 0x18c, 0x0e, "DEBUG" },
50 };
51
52 unsigned int get_soc_major_rev(void)
53 {
54         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
55         unsigned int svr, major;
56
57         svr = in_be32(&gur->svr);
58         major = SVR_MAJ(svr);
59
60         return major;
61 }
62
63 #ifdef CONFIG_SYS_FSL_ERRATUM_A010315
64 void erratum_a010315(void)
65 {
66         int i;
67
68         for (i = PCIE1; i <= PCIE2; i++)
69                 if (!is_serdes_configured(i)) {
70                         debug("PCIe%d: disabled all R/W permission!\n", i);
71                         set_pcie_ns_access(i, 0);
72                 }
73 }
74 #endif
75
76 int arch_soc_init(void)
77 {
78         struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR;
79         struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR;
80         unsigned int major;
81
82 #ifdef CONFIG_LAYERSCAPE_NS_ACCESS
83         enable_layerscape_ns_access();
84 #endif
85
86 #ifdef CONFIG_FSL_QSPI
87         out_be32(&scfg->qspi_cfg, SCFG_QSPI_CLKSEL);
88 #endif
89
90 #ifdef CONFIG_FSL_DCU_FB
91         out_be32(&scfg->pixclkcr, SCFG_PIXCLKCR_PXCKEN);
92 #endif
93
94         /* Configure Little endian for SAI, ASRC and SPDIF */
95         out_be32(&scfg->endiancr, SCFG_ENDIANCR_LE);
96
97         /*
98          * Enable snoop requests and DVM message requests for
99          * All the slave insterfaces.
100          */
101         out_le32(&cci->slave[0].snoop_ctrl,
102                  CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN);
103         out_le32(&cci->slave[1].snoop_ctrl,
104                  CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN);
105         out_le32(&cci->slave[2].snoop_ctrl,
106                  CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN);
107         out_le32(&cci->slave[4].snoop_ctrl,
108                  CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN);
109
110         major = get_soc_major_rev();
111         if (major == SOC_MAJOR_VER_1_0) {
112                 /*
113                  * Set CCI-400 Slave interface S1, S2 Shareable Override
114                  * Register All transactions are treated as non-shareable
115                  */
116                 out_le32(&cci->slave[1].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
117                 out_le32(&cci->slave[2].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
118
119                 /* Workaround for the issue that DDR could not respond to
120                  * barrier transaction which is generated by executing DSB/ISB
121                  * instruction. Set CCI-400 control override register to
122                  * terminate the barrier transaction. After DDR is initialized,
123                  * allow barrier transaction to DDR again */
124                 out_le32(&cci->ctrl_ord, CCI400_CTRLORD_TERM_BARRIER);
125         }
126
127         /* Enable all the snoop signal for various masters */
128         out_be32(&scfg->snpcnfgcr, SCFG_SNPCNFGCR_SEC_RD_WR |
129                                 SCFG_SNPCNFGCR_DCU_RD_WR |
130                                 SCFG_SNPCNFGCR_SATA_RD_WR |
131                                 SCFG_SNPCNFGCR_USB3_RD_WR |
132                                 SCFG_SNPCNFGCR_DBG_RD_WR |
133                                 SCFG_SNPCNFGCR_EDMA_SNP);
134
135         /*
136          * Memory controller require a register write before being enabled.
137          * Affects: DDR
138          * Register: EDDRTQCFG
139          * Description: Memory controller performance is not optimal with
140          *              default internal target queue register values.
141          * Workaround: Write a value of 63b2_0042h to address: 157_020Ch.
142          */
143         out_be32(&scfg->eddrtqcfg, 0x63b20042);
144
145         return 0;
146 }
147
148 int ls102xa_smmu_stream_id_init(void)
149 {
150         ls1021x_config_caam_stream_id(sec_liodn_tbl,
151                                       ARRAY_SIZE(sec_liodn_tbl));
152
153         ls102xa_config_smmu_stream_id(dev_stream_id,
154                                       ARRAY_SIZE(dev_stream_id));
155
156         return 0;
157 }