| /* |
| * Copyright 2022-2023 NXP |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| #include <assert.h> |
| #include <errno.h> |
| #include <stdbool.h> |
| |
| #include <common/bl_common.h> |
| #include <common/debug.h> |
| #include <drivers/nxp/trdc/imx_trdc.h> |
| #include <lib/mmio.h> |
| |
| |
| int trdc_mda_set_cpu(uintptr_t trdc_base, uint32_t mda_inst, |
| uint32_t mda_reg, uint8_t sa, uint8_t dids, |
| uint8_t did, uint8_t pe, uint8_t pidm, uint8_t pid) |
| { |
| uint32_t val = mmio_read_32(trdc_base + MDAC_W_X(mda_inst, mda_reg)); |
| /* invalid: config non-cpu master with cpu config format. */ |
| if ((val & MDA_DFMT) != 0U) { |
| return -EINVAL; |
| } |
| |
| val = MDA_VLD | MDA_DFMT0_DID(pid) | MDA_DFMT0_PIDM(pidm) | MDA_DFMT0_PE(pe) | |
| MDA_DFMT0_SA(sa) | MDA_DFMT0_DIDS(dids) | MDA_DFMT0_DID(did); |
| |
| mmio_write_32(trdc_base + MDAC_W_X(mda_inst, mda_reg), val); |
| |
| return 0; |
| } |
| |
| int trdc_mda_set_noncpu(uintptr_t trdc_base, uint32_t mda_inst, |
| bool did_bypass, uint8_t sa, uint8_t pa, |
| uint8_t did) |
| { |
| uint32_t val = mmio_read_32(trdc_base + MDAC_W_X(mda_inst, 0)); |
| |
| /* invalid: config cpu master with non-cpu config format. */ |
| if ((val & MDA_DFMT) == 0U) { |
| return -EINVAL; |
| } |
| |
| val = MDA_VLD | MDA_DFMT1_SA(sa) | MDA_DFMT1_PA(pa) | MDA_DFMT1_DID(did) | |
| MDA_DFMT1_DIDB(did_bypass ? 1U : 0U); |
| |
| mmio_write_32(trdc_base + MDAC_W_X(mda_inst, 0), val); |
| |
| return 0; |
| } |
| |
| static uintptr_t trdc_get_mbc_base(uintptr_t trdc_reg, uint32_t mbc_x) |
| { |
| struct trdc_mgr *trdc_base = (struct trdc_mgr *)trdc_reg; |
| uint32_t mbc_num = MBC_NUM(trdc_base->trdc_hwcfg0); |
| |
| if (mbc_x >= mbc_num) { |
| return 0U; |
| } |
| |
| return trdc_reg + 0x10000 + 0x2000 * mbc_x; |
| } |
| |
| static uintptr_t trdc_get_mrc_base(uintptr_t trdc_reg, uint32_t mrc_x) |
| { |
| struct trdc_mgr *trdc_base = (struct trdc_mgr *)trdc_reg; |
| uint32_t mbc_num = MBC_NUM(trdc_base->trdc_hwcfg0); |
| uint32_t mrc_num = MRC_NUM(trdc_base->trdc_hwcfg0); |
| |
| if (mrc_x >= mrc_num) { |
| return 0U; |
| } |
| |
| return trdc_reg + 0x10000 + 0x2000 * mbc_num + 0x1000 * mrc_x; |
| } |
| |
| uint32_t trdc_mbc_blk_num(uintptr_t trdc_reg, uint32_t mbc_x, uint32_t mem_x) |
| { |
| uint32_t glbcfg; |
| struct mbc_mem_dom *mbc_dom; |
| struct trdc_mbc *mbc_base = (struct trdc_mbc *)trdc_get_mbc_base(trdc_reg, mbc_x); |
| |
| if (mbc_base == NULL) { |
| return 0; |
| } |
| |
| /* only first dom has the glbcfg */ |
| mbc_dom = &mbc_base->mem_dom[0]; |
| glbcfg = mmio_read_32((uintptr_t)&mbc_dom->mem_glbcfg[mem_x]); |
| |
| return MBC_BLK_NUM(glbcfg); |
| } |
| |
| uint32_t trdc_mrc_rgn_num(uintptr_t trdc_reg, uint32_t mrc_x) |
| { |
| uint32_t glbcfg; |
| struct mrc_rgn_dom *mrc_dom; |
| struct trdc_mrc *mrc_base = (struct trdc_mrc *)trdc_get_mrc_base(trdc_reg, mrc_x); |
| |
| if (mrc_base == NULL) { |
| return 0; |
| } |
| |
| /* only first dom has the glbcfg */ |
| mrc_dom = &mrc_base->mrc_dom[0]; |
| glbcfg = mmio_read_32((uintptr_t)&mrc_dom->mrc_glbcfg[0]); |
| |
| return MBC_BLK_NUM(glbcfg); |
| } |
| |
| int trdc_mbc_set_control(uintptr_t trdc_reg, uint32_t mbc_x, |
| uint32_t glbac_id, uint32_t glbac_val) |
| { |
| struct mbc_mem_dom *mbc_dom; |
| struct trdc_mbc *mbc_base = (struct trdc_mbc *)trdc_get_mbc_base(trdc_reg, mbc_x); |
| |
| if (mbc_base == NULL || glbac_id >= GLBAC_NUM) { |
| return -EINVAL; |
| } |
| |
| /* only first dom has the glbac */ |
| mbc_dom = &mbc_base->mem_dom[0]; |
| |
| mmio_write_32((uintptr_t)&mbc_dom->memn_glbac[glbac_id], glbac_val); |
| |
| return 0; |
| } |
| |
| int trdc_mbc_blk_config(uintptr_t trdc_reg, uint32_t mbc_x, |
| uint32_t dom_x, uint32_t mem_x, uint32_t blk_x, |
| bool sec_access, uint32_t glbac_id) |
| { |
| uint32_t *cfg_w; |
| uint32_t index, offset, val; |
| struct mbc_mem_dom *mbc_dom; |
| struct trdc_mbc *mbc_base = (struct trdc_mbc *)trdc_get_mbc_base(trdc_reg, mbc_x); |
| |
| if (mbc_base == NULL || glbac_id >= GLBAC_NUM) { |
| return -EINVAL; |
| } |
| |
| mbc_dom = &mbc_base->mem_dom[dom_x]; |
| |
| switch (mem_x) { |
| case 0: |
| cfg_w = &mbc_dom->mem0_blk_cfg_w[blk_x / 8]; |
| break; |
| case 1: |
| cfg_w = &mbc_dom->mem1_blk_cfg_w[blk_x / 8]; |
| break; |
| case 2: |
| cfg_w = &mbc_dom->mem2_blk_cfg_w[blk_x / 8]; |
| break; |
| case 3: |
| cfg_w = &mbc_dom->mem3_blk_cfg_w[blk_x / 8]; |
| break; |
| default: |
| return -EINVAL; |
| }; |
| |
| index = blk_x % 8; |
| offset = index * 4; |
| |
| val = mmio_read_32((uintptr_t)cfg_w); |
| val &= ~(0xF << offset); |
| |
| /* |
| * MBC0-3 |
| * Global 0, 0x7777 secure pri/user read/write/execute, |
| * S400 has already set it. So select MBC0_MEMN_GLBAC0 |
| */ |
| if (sec_access) { |
| val |= ((0x0 | (glbac_id & 0x7)) << offset); |
| mmio_write_32((uintptr_t)cfg_w, val); |
| } else { |
| /* nse bit set */ |
| val |= ((0x8 | (glbac_id & 0x7)) << offset); |
| mmio_write_32((uintptr_t)cfg_w, val); |
| } |
| |
| return 0; |
| } |
| |
| int trdc_mrc_set_control(uintptr_t trdc_reg, uint32_t mrc_x, |
| uint32_t glbac_id, uint32_t glbac_val) |
| { |
| struct mrc_rgn_dom *mrc_dom; |
| struct trdc_mrc *mrc_base = (struct trdc_mrc *)trdc_get_mrc_base(trdc_reg, mrc_x); |
| |
| if (mrc_base == NULL || glbac_id >= GLBAC_NUM) { |
| return -EINVAL; |
| } |
| |
| /* only first dom has the glbac */ |
| mrc_dom = &mrc_base->mrc_dom[0]; |
| |
| mmio_write_32((uintptr_t)&mrc_dom->memn_glbac[glbac_id], glbac_val); |
| |
| return 0; |
| } |
| |
| int trdc_mrc_rgn_config(uintptr_t trdc_reg, uint32_t mrc_x, |
| uint32_t dom_x, uint32_t rgn_id, |
| uint32_t addr_start, uint32_t addr_size, |
| bool sec_access, uint32_t glbac_id) |
| { |
| uint32_t *desc_w; |
| uint32_t addr_end; |
| struct mrc_rgn_dom *mrc_dom; |
| struct trdc_mrc *mrc_base = (struct trdc_mrc *)trdc_get_mrc_base(trdc_reg, mrc_x); |
| |
| if (mrc_base == NULL || glbac_id >= GLBAC_NUM || rgn_id >= MRC_REG_ALL) { |
| return -EINVAL; |
| } |
| |
| mrc_dom = &mrc_base->mrc_dom[dom_x]; |
| |
| addr_end = addr_start + addr_size - 1; |
| addr_start &= ~0x3fff; |
| addr_end &= ~0x3fff; |
| |
| desc_w = &mrc_dom->rgn_desc_words[rgn_id][0]; |
| |
| if (sec_access) { |
| mmio_write_32((uintptr_t)desc_w, addr_start | (glbac_id & 0x7)); |
| mmio_write_32((uintptr_t)(desc_w + 1), addr_end | 0x1); |
| } else { |
| mmio_write_32((uintptr_t)desc_w, addr_start | (glbac_id & 0x7)); |
| mmio_write_32((uintptr_t)(desc_w + 1), (addr_end | 0x1 | 0x10)); |
| } |
| |
| return 0; |
| } |
| |
| bool trdc_mrc_enabled(uintptr_t mrc_base) |
| { |
| return (mmio_read_32(mrc_base) & BIT(15)); |
| } |
| |
| bool trdc_mbc_enabled(uintptr_t mbc_base) |
| { |
| return (mmio_read_32(mbc_base) & BIT(14)); |
| } |
| |
| static bool is_trdc_mgr_slot(uintptr_t trdc_base, uint8_t mbc_id, |
| uint8_t mem_id, uint16_t blk_id) |
| { |
| unsigned int i; |
| |
| for (i = 0U; i < trdc_mgr_num; i++) { |
| if (trdc_mgr_blks[i].trdc_base == trdc_base) { |
| if (mbc_id == trdc_mgr_blks[i].mbc_id && |
| mem_id == trdc_mgr_blks[i].mbc_mem_id && |
| (blk_id == trdc_mgr_blks[i].blk_mgr || |
| blk_id == trdc_mgr_blks[i].blk_mc)) { |
| return true; |
| } |
| } |
| } |
| |
| return false; |
| } |
| |
| /* |
| * config the TRDC MGR & MC's access policy. only the secure privilege |
| * mode SW can access it. |
| */ |
| void trdc_mgr_mbc_setup(struct trdc_mgr_info *mgr) |
| { |
| unsigned int i; |
| |
| /* |
| * If the MBC is global enabled, need to cconfigure the MBCs of |
| * TRDC MGR & MC correctly. |
| */ |
| if (trdc_mbc_enabled(mgr->trdc_base)) { |
| /* ONLY secure privilige can access */ |
| trdc_mbc_set_control(mgr->trdc_base, mgr->mbc_id, 7, 0x6000); |
| for (i = 0U; i < 16U; i++) { |
| trdc_mbc_blk_config(mgr->trdc_base, mgr->mbc_id, i, |
| mgr->mbc_mem_id, mgr->blk_mgr, true, 7); |
| |
| trdc_mbc_blk_config(mgr->trdc_base, mgr->mbc_id, i, |
| mgr->mbc_mem_id, mgr->blk_mc, true, 7); |
| } |
| } |
| } |
| |
| /* |
| * Set up the TRDC access policy for all the resources under |
| * the TRDC control. |
| */ |
| void trdc_setup(struct trdc_config_info *cfg) |
| { |
| unsigned int i, j, num; |
| bool is_mgr; |
| |
| /* config the MRCs */ |
| if (trdc_mrc_enabled(cfg->trdc_base)) { |
| /* set global access policy */ |
| for (i = 0U; i < cfg->num_mrc_glbac; i++) { |
| trdc_mrc_set_control(cfg->trdc_base, |
| cfg->mrc_glbac[i].mbc_mrc_id, |
| cfg->mrc_glbac[i].glbac_id, |
| cfg->mrc_glbac[i].glbac_val); |
| } |
| |
| /* set each MRC region access policy */ |
| for (i = 0U; i < cfg->num_mrc_cfg; i++) { |
| trdc_mrc_rgn_config(cfg->trdc_base, cfg->mrc_cfg[i].mrc_id, |
| cfg->mrc_cfg[i].dom_id, |
| cfg->mrc_cfg[i].region_id, |
| cfg->mrc_cfg[i].region_start, |
| cfg->mrc_cfg[i].region_size, |
| cfg->mrc_cfg[i].secure, |
| cfg->mrc_cfg[i].glbac_id); |
| } |
| } |
| |
| /* config the MBCs */ |
| if (trdc_mbc_enabled(cfg->trdc_base)) { |
| /* set MBC global access policy */ |
| for (i = 0U; i < cfg->num_mbc_glbac; i++) { |
| trdc_mbc_set_control(cfg->trdc_base, |
| cfg->mbc_glbac[i].mbc_mrc_id, |
| cfg->mbc_glbac[i].glbac_id, |
| cfg->mbc_glbac[i].glbac_val); |
| } |
| |
| for (i = 0U; i < cfg->num_mbc_cfg; i++) { |
| if (cfg->mbc_cfg[i].blk_id == MBC_BLK_ALL) { |
| num = trdc_mbc_blk_num(cfg->trdc_base, |
| cfg->mbc_cfg[i].mbc_id, |
| cfg->mbc_cfg[i].mem_id); |
| |
| for (j = 0U; j < num; j++) { |
| /* Skip mgr and mc */ |
| is_mgr = is_trdc_mgr_slot(cfg->trdc_base, |
| cfg->mbc_cfg[i].mbc_id, |
| cfg->mbc_cfg[i].mem_id, j); |
| if (is_mgr) { |
| continue; |
| } |
| |
| trdc_mbc_blk_config(cfg->trdc_base, |
| cfg->mbc_cfg[i].mbc_id, |
| cfg->mbc_cfg[i].dom_id, |
| cfg->mbc_cfg[i].mem_id, j, |
| cfg->mbc_cfg[i].secure, |
| cfg->mbc_cfg[i].glbac_id); |
| } |
| } else { |
| trdc_mbc_blk_config(cfg->trdc_base, |
| cfg->mbc_cfg[i].mbc_id, |
| cfg->mbc_cfg[i].dom_id, |
| cfg->mbc_cfg[i].mem_id, |
| cfg->mbc_cfg[i].blk_id, |
| cfg->mbc_cfg[i].secure, |
| cfg->mbc_cfg[i].glbac_id); |
| } |
| } |
| } |
| } |