Laurentiu Tudor | 512d13e | 2018-08-09 15:19:46 +0300 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * Copyright 2018 NXP |
| 4 | */ |
| 5 | |
| 6 | #include <common.h> |
| 7 | #include <linux/libfdt.h> |
| 8 | #include <fdt_support.h> |
| 9 | |
| 10 | #include <asm/io.h> |
| 11 | #include <asm/processor.h> |
| 12 | #include <asm/arch-fsl-layerscape/fsl_icid.h> |
Laurentiu Tudor | dcb7f3d | 2018-08-09 15:19:48 +0300 | [diff] [blame] | 13 | #include <fsl_fman.h> |
Laurentiu Tudor | 512d13e | 2018-08-09 15:19:46 +0300 | [diff] [blame] | 14 | |
| 15 | static void set_icid(struct icid_id_table *tbl, int size) |
| 16 | { |
| 17 | int i; |
| 18 | |
| 19 | for (i = 0; i < size; i++) |
Laurentiu Tudor | 7c326ac | 2019-07-30 17:29:57 +0300 | [diff] [blame] | 20 | if (tbl[i].le) |
| 21 | out_le32((u32 *)(tbl[i].reg_addr), tbl[i].reg); |
| 22 | else |
| 23 | out_be32((u32 *)(tbl[i].reg_addr), tbl[i].reg); |
Laurentiu Tudor | 512d13e | 2018-08-09 15:19:46 +0300 | [diff] [blame] | 24 | } |
| 25 | |
Laurentiu Tudor | dcb7f3d | 2018-08-09 15:19:48 +0300 | [diff] [blame] | 26 | #ifdef CONFIG_SYS_DPAA_FMAN |
| 27 | void set_fman_icids(struct fman_icid_id_table *tbl, int size) |
| 28 | { |
| 29 | int i; |
Tom Rini | 376b88a | 2022-10-28 20:27:13 -0400 | [diff] [blame^] | 30 | ccsr_fman_t *fm = (void *)CFG_SYS_FSL_FM1_ADDR; |
Laurentiu Tudor | dcb7f3d | 2018-08-09 15:19:48 +0300 | [diff] [blame] | 31 | |
| 32 | for (i = 0; i < size; i++) { |
| 33 | out_be32(&fm->fm_bmi_common.fmbm_ppid[tbl[i].port_id - 1], |
| 34 | tbl[i].icid); |
| 35 | } |
| 36 | } |
| 37 | #endif |
| 38 | |
Laurentiu Tudor | 512d13e | 2018-08-09 15:19:46 +0300 | [diff] [blame] | 39 | void set_icids(void) |
| 40 | { |
| 41 | /* setup general icid offsets */ |
| 42 | set_icid(icid_tbl, icid_tbl_sz); |
Laurentiu Tudor | dcb7f3d | 2018-08-09 15:19:48 +0300 | [diff] [blame] | 43 | |
| 44 | #ifdef CONFIG_SYS_DPAA_FMAN |
| 45 | set_fman_icids(fman_icid_tbl, fman_icid_tbl_sz); |
| 46 | #endif |
Laurentiu Tudor | 512d13e | 2018-08-09 15:19:46 +0300 | [diff] [blame] | 47 | } |
| 48 | |
Sean Anderson | c0ca4bc | 2022-10-17 11:45:11 -0400 | [diff] [blame] | 49 | #ifndef CONFIG_SPL_BUILD |
Laurentiu Tudor | 512d13e | 2018-08-09 15:19:46 +0300 | [diff] [blame] | 50 | int fdt_set_iommu_prop(void *blob, int off, int smmu_ph, u32 *ids, int num_ids) |
| 51 | { |
| 52 | int i, ret; |
| 53 | u32 prop[8]; |
| 54 | |
| 55 | /* |
| 56 | * Note: The "iommus" property definition mentions Stream IDs while |
| 57 | * this code handles ICIDs. The current implementation assumes that |
| 58 | * ICIDs and Stream IDs are equal. |
| 59 | */ |
| 60 | for (i = 0; i < num_ids; i++) { |
| 61 | prop[i * 2] = cpu_to_fdt32(smmu_ph); |
| 62 | prop[i * 2 + 1] = cpu_to_fdt32(ids[i]); |
| 63 | } |
| 64 | ret = fdt_setprop(blob, off, "iommus", |
| 65 | prop, sizeof(u32) * num_ids * 2); |
| 66 | if (ret) { |
| 67 | printf("WARNING unable to set iommus: %s\n", fdt_strerror(ret)); |
| 68 | return ret; |
| 69 | } |
| 70 | |
| 71 | return 0; |
| 72 | } |
| 73 | |
| 74 | int fdt_fixup_icid_tbl(void *blob, int smmu_ph, |
| 75 | struct icid_id_table *tbl, int size) |
| 76 | { |
| 77 | int i, err, off; |
| 78 | |
| 79 | for (i = 0; i < size; i++) { |
| 80 | if (!tbl[i].compat) |
| 81 | continue; |
| 82 | |
| 83 | off = fdt_node_offset_by_compat_reg(blob, |
| 84 | tbl[i].compat, |
| 85 | tbl[i].compat_addr); |
| 86 | if (off > 0) { |
| 87 | err = fdt_set_iommu_prop(blob, off, smmu_ph, |
| 88 | &tbl[i].id, 1); |
| 89 | if (err) |
| 90 | return err; |
| 91 | } else { |
| 92 | printf("WARNING could not find node %s: %s.\n", |
| 93 | tbl[i].compat, fdt_strerror(off)); |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | return 0; |
| 98 | } |
| 99 | |
Laurentiu Tudor | dcb7f3d | 2018-08-09 15:19:48 +0300 | [diff] [blame] | 100 | #ifdef CONFIG_SYS_DPAA_FMAN |
| 101 | int get_fman_port_icid(int port_id, struct fman_icid_id_table *tbl, |
| 102 | const int size) |
| 103 | { |
| 104 | int i; |
| 105 | |
| 106 | for (i = 0; i < size; i++) { |
| 107 | if (tbl[i].port_id == port_id) |
| 108 | return tbl[i].icid; |
| 109 | } |
| 110 | |
| 111 | return -1; |
| 112 | } |
| 113 | |
| 114 | void fdt_fixup_fman_port_icid_by_compat(void *blob, int smmu_ph, |
| 115 | const char *compat) |
| 116 | { |
| 117 | int noff, len, icid; |
| 118 | const u32 *prop; |
| 119 | |
Marek BehĂșn | 5d6b448 | 2022-01-20 01:04:42 +0100 | [diff] [blame] | 120 | fdt_for_each_node_by_compatible(noff, blob, -1, compat) { |
Laurentiu Tudor | dcb7f3d | 2018-08-09 15:19:48 +0300 | [diff] [blame] | 121 | prop = fdt_getprop(blob, noff, "cell-index", &len); |
| 122 | if (!prop) { |
| 123 | printf("WARNING missing cell-index for fman port\n"); |
| 124 | continue; |
| 125 | } |
| 126 | if (len != 4) { |
| 127 | printf("WARNING bad cell-index size for fman port\n"); |
| 128 | continue; |
| 129 | } |
| 130 | |
| 131 | icid = get_fman_port_icid(fdt32_to_cpu(*prop), |
| 132 | fman_icid_tbl, fman_icid_tbl_sz); |
| 133 | if (icid < 0) { |
| 134 | printf("WARNING unknown ICID for fman port %d\n", |
| 135 | *prop); |
| 136 | continue; |
| 137 | } |
| 138 | |
| 139 | fdt_set_iommu_prop(blob, noff, smmu_ph, (u32 *)&icid, 1); |
Laurentiu Tudor | dcb7f3d | 2018-08-09 15:19:48 +0300 | [diff] [blame] | 140 | } |
| 141 | } |
| 142 | |
| 143 | void fdt_fixup_fman_icids(void *blob, int smmu_ph) |
| 144 | { |
| 145 | static const char * const compats[] = { |
| 146 | "fsl,fman-v3-port-oh", |
| 147 | "fsl,fman-v3-port-rx", |
| 148 | "fsl,fman-v3-port-tx", |
| 149 | }; |
| 150 | int i; |
| 151 | |
| 152 | for (i = 0; i < ARRAY_SIZE(compats); i++) |
| 153 | fdt_fixup_fman_port_icid_by_compat(blob, smmu_ph, compats[i]); |
| 154 | } |
| 155 | #endif |
| 156 | |
Laurentiu Tudor | 512d13e | 2018-08-09 15:19:46 +0300 | [diff] [blame] | 157 | int fdt_get_smmu_phandle(void *blob) |
| 158 | { |
| 159 | int noff, smmu_ph; |
| 160 | |
| 161 | noff = fdt_node_offset_by_compatible(blob, -1, "arm,mmu-500"); |
| 162 | if (noff < 0) { |
| 163 | printf("WARNING failed to get smmu node: %s\n", |
| 164 | fdt_strerror(noff)); |
| 165 | return noff; |
| 166 | } |
| 167 | |
| 168 | smmu_ph = fdt_get_phandle(blob, noff); |
| 169 | if (!smmu_ph) { |
| 170 | smmu_ph = fdt_create_phandle(blob, noff); |
| 171 | if (!smmu_ph) { |
| 172 | printf("WARNING failed to get smmu phandle\n"); |
| 173 | return -1; |
| 174 | } |
| 175 | } |
| 176 | |
| 177 | return smmu_ph; |
| 178 | } |
| 179 | |
| 180 | void fdt_fixup_icid(void *blob) |
| 181 | { |
| 182 | int smmu_ph; |
| 183 | |
| 184 | smmu_ph = fdt_get_smmu_phandle(blob); |
| 185 | if (smmu_ph < 0) |
| 186 | return; |
| 187 | |
| 188 | fdt_fixup_icid_tbl(blob, smmu_ph, icid_tbl, icid_tbl_sz); |
Laurentiu Tudor | dcb7f3d | 2018-08-09 15:19:48 +0300 | [diff] [blame] | 189 | |
| 190 | #ifdef CONFIG_SYS_DPAA_FMAN |
| 191 | fdt_fixup_fman_icids(blob, smmu_ph); |
| 192 | #endif |
Laurentiu Tudor | 512d13e | 2018-08-09 15:19:46 +0300 | [diff] [blame] | 193 | } |
Sean Anderson | c0ca4bc | 2022-10-17 11:45:11 -0400 | [diff] [blame] | 194 | #endif |