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u-boot/arch/arm/cpu/armv8/fsl-layerscape/ppa.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

282 lines
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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2016 NXP Semiconductor, Inc.
*/
#include <common.h>
#include <malloc.h>
#include <config.h>
#include <errno.h>
#include <asm/system.h>
#include <asm/types.h>
#include <asm/arch/soc.h>
#ifdef CONFIG_FSL_LSCH3
#include <asm/arch/immap_lsch3.h>
#elif defined(CONFIG_FSL_LSCH2)
#include <asm/arch/immap_lsch2.h>
#endif
#ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
#include <asm/armv8/sec_firmware.h>
#endif
#ifdef CONFIG_CHAIN_OF_TRUST
#include <fsl_validate.h>
#endif
#ifdef CONFIG_SYS_LS_PPA_FW_IN_NAND
#include <nand.h>
#elif defined(CONFIG_SYS_LS_PPA_FW_IN_MMC)
#include <mmc.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
int ppa_init(void)
{
unsigned int el = current_el();
void *ppa_fit_addr;
u32 *boot_loc_ptr_l, *boot_loc_ptr_h;
u32 *loadable_l, *loadable_h;
int ret;
#ifdef CONFIG_CHAIN_OF_TRUST
uintptr_t ppa_esbc_hdr = 0;
uintptr_t ppa_img_addr = 0;
#if defined(CONFIG_SYS_LS_PPA_FW_IN_MMC) || \
defined(CONFIG_SYS_LS_PPA_FW_IN_NAND)
void *ppa_hdr_ddr;
#endif
#endif
/* Skip if running at lower exception level */
if (el < 3) {
debug("Skipping PPA init, running at EL%d\n", el);
return 0;
}
#ifdef CONFIG_SYS_LS_PPA_FW_IN_XIP
ppa_fit_addr = (void *)CONFIG_SYS_LS_PPA_FW_ADDR;
debug("%s: PPA image load from XIP\n", __func__);
#ifdef CONFIG_CHAIN_OF_TRUST
ppa_esbc_hdr = CONFIG_SYS_LS_PPA_ESBC_ADDR;
#endif
#else /* !CONFIG_SYS_LS_PPA_FW_IN_XIP */
size_t fw_length, fdt_header_len = sizeof(struct fdt_header);
/* Copy PPA image from MMC/SD/NAND to allocated memory */
#ifdef CONFIG_SYS_LS_PPA_FW_IN_MMC
struct mmc *mmc;
int dev = CONFIG_SYS_MMC_ENV_DEV;
struct fdt_header *fitp;
u32 cnt;
u32 blk;
debug("%s: PPA image load from eMMC/SD\n", __func__);
ret = mmc_initialize(gd->bd);
if (ret) {
printf("%s: mmc_initialize() failed\n", __func__);
return ret;
}
mmc = find_mmc_device(dev);
if (!mmc) {
printf("PPA: MMC cannot find device for PPA firmware\n");
return -ENODEV;
}
ret = mmc_init(mmc);
if (ret) {
printf("%s: mmc_init() failed\n", __func__);
return ret;
}
fitp = malloc(roundup(fdt_header_len, 512));
if (!fitp) {
printf("PPA: malloc failed for FIT header(size 0x%zx)\n",
roundup(fdt_header_len, 512));
return -ENOMEM;
}
blk = CONFIG_SYS_LS_PPA_FW_ADDR / 512;
cnt = DIV_ROUND_UP(fdt_header_len, 512);
debug("%s: MMC read PPA FIT header: dev # %u, block # %u, count %u\n",
__func__, dev, blk, cnt);
ret = mmc->block_dev.block_read(&mmc->block_dev, blk, cnt, fitp);
if (ret != cnt) {
free(fitp);
printf("MMC/SD read of PPA FIT header at offset 0x%x failed\n",
CONFIG_SYS_LS_PPA_FW_ADDR);
return -EIO;
}
ret = fdt_check_header(fitp);
if (ret) {
free(fitp);
printf("%s: fdt_check_header() failed\n", __func__);
return ret;
}
#ifdef CONFIG_CHAIN_OF_TRUST
ppa_hdr_ddr = malloc(CONFIG_LS_PPA_ESBC_HDR_SIZE);
if (!ppa_hdr_ddr) {
printf("PPA: malloc failed for PPA header\n");
return -ENOMEM;
}
blk = CONFIG_SYS_LS_PPA_ESBC_ADDR >> 9;
cnt = DIV_ROUND_UP(CONFIG_LS_PPA_ESBC_HDR_SIZE, 512);
ret = mmc->block_dev.block_read(&mmc->block_dev, blk, cnt, ppa_hdr_ddr);
if (ret != cnt) {
free(ppa_hdr_ddr);
printf("MMC/SD read of PPA header failed\n");
return -EIO;
}
debug("Read PPA header to 0x%p\n", ppa_hdr_ddr);
ppa_esbc_hdr = (uintptr_t)ppa_hdr_ddr;
#endif
fw_length = fdt_totalsize(fitp);
free(fitp);
fw_length = roundup(fw_length, 512);
ppa_fit_addr = malloc(fw_length);
if (!ppa_fit_addr) {
printf("PPA: malloc failed for PPA image(size 0x%zx)\n",
fw_length);
return -ENOMEM;
}
blk = CONFIG_SYS_LS_PPA_FW_ADDR / 512;
cnt = DIV_ROUND_UP(fw_length, 512);
debug("%s: MMC read PPA FIT image: dev # %u, block # %u, count %u\n",
__func__, dev, blk, cnt);
ret = mmc->block_dev.block_read(&mmc->block_dev,
blk, cnt, ppa_fit_addr);
if (ret != cnt) {
free(ppa_fit_addr);
printf("MMC/SD read of PPA FIT header at offset 0x%x failed\n",
CONFIG_SYS_LS_PPA_FW_ADDR);
return -EIO;
}
#elif defined(CONFIG_SYS_LS_PPA_FW_IN_NAND)
struct fdt_header fit;
debug("%s: PPA image load from NAND\n", __func__);
nand_init();
ret = nand_read(get_nand_dev_by_index(0),
(loff_t)CONFIG_SYS_LS_PPA_FW_ADDR,
&fdt_header_len, (u_char *)&fit);
if (ret == -EUCLEAN) {
printf("NAND read of PPA FIT header at offset 0x%x failed\n",
CONFIG_SYS_LS_PPA_FW_ADDR);
return -EIO;
}
ret = fdt_check_header(&fit);
if (ret) {
printf("%s: fdt_check_header() failed\n", __func__);
return ret;
}
#ifdef CONFIG_CHAIN_OF_TRUST
ppa_hdr_ddr = malloc(CONFIG_LS_PPA_ESBC_HDR_SIZE);
if (!ppa_hdr_ddr) {
printf("PPA: malloc failed for PPA header\n");
return -ENOMEM;
}
fw_length = CONFIG_LS_PPA_ESBC_HDR_SIZE;
ret = nand_read(get_nand_dev_by_index(0),
(loff_t)CONFIG_SYS_LS_PPA_ESBC_ADDR,
&fw_length, (u_char *)ppa_hdr_ddr);
if (ret == -EUCLEAN) {
free(ppa_hdr_ddr);
printf("NAND read of PPA firmware at offset 0x%x failed\n",
CONFIG_SYS_LS_PPA_FW_ADDR);
return -EIO;
}
debug("Read PPA header to 0x%p\n", ppa_hdr_ddr);
ppa_esbc_hdr = (uintptr_t)ppa_hdr_ddr;
#endif
fw_length = fdt_totalsize(&fit);
ppa_fit_addr = malloc(fw_length);
if (!ppa_fit_addr) {
printf("PPA: malloc failed for PPA image(size 0x%zx)\n",
fw_length);
return -ENOMEM;
}
ret = nand_read(get_nand_dev_by_index(0),
(loff_t)CONFIG_SYS_LS_PPA_FW_ADDR,
&fw_length, (u_char *)ppa_fit_addr);
if (ret == -EUCLEAN) {
free(ppa_fit_addr);
printf("NAND read of PPA firmware at offset 0x%x failed\n",
CONFIG_SYS_LS_PPA_FW_ADDR);
return -EIO;
}
#else
#error "No CONFIG_SYS_LS_PPA_FW_IN_xxx defined"
#endif
#endif
#ifdef CONFIG_CHAIN_OF_TRUST
ppa_img_addr = (uintptr_t)ppa_fit_addr;
if (fsl_check_boot_mode_secure() != 0) {
/*
* In case of failure in validation, fsl_secboot_validate
* would not return back in case of Production environment
* with ITS=1. In Development environment (ITS=0 and
* SB_EN=1), the function may return back in case of
* non-fatal failures.
*/
ret = fsl_secboot_validate(ppa_esbc_hdr,
PPA_KEY_HASH,
&ppa_img_addr);
if (ret != 0)
printf("SEC firmware(s) validation failed\n");
else
printf("SEC firmware(s) validation Successful\n");
}
#if defined(CONFIG_SYS_LS_PPA_FW_IN_MMC) || \
defined(CONFIG_SYS_LS_PPA_FW_IN_NAND)
free(ppa_hdr_ddr);
#endif
#endif
#ifdef CONFIG_FSL_LSCH3
struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
boot_loc_ptr_l = &gur->bootlocptrl;
boot_loc_ptr_h = &gur->bootlocptrh;
/* Assign addresses to loadable ptrs */
loadable_l = &gur->scratchrw[4];
loadable_h = &gur->scratchrw[5];
#elif defined(CONFIG_FSL_LSCH2)
struct ccsr_scfg __iomem *scfg = (void *)(CONFIG_SYS_FSL_SCFG_ADDR);
boot_loc_ptr_l = &scfg->scratchrw[1];
boot_loc_ptr_h = &scfg->scratchrw[0];
/* Assign addresses to loadable ptrs */
loadable_l = &scfg->scratchrw[2];
loadable_h = &scfg->scratchrw[3];
#endif
debug("fsl-ppa: boot_loc_ptr_l = 0x%p, boot_loc_ptr_h =0x%p\n",
boot_loc_ptr_l, boot_loc_ptr_h);
ret = sec_firmware_init(ppa_fit_addr, boot_loc_ptr_l, boot_loc_ptr_h,
loadable_l, loadable_h);
#if defined(CONFIG_SYS_LS_PPA_FW_IN_MMC) || \
defined(CONFIG_SYS_LS_PPA_FW_IN_NAND)
free(ppa_fit_addr);
#endif
return ret;
}
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