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fpga: zynqpl: Check if aes engine is enabled

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AES engine cannot be used if has not been enabled at boot time
with an encrypted boot image.

Signed-off-by: Ibai Erkiaga <ibai.erkiaga-elorza@xilinx.com>
Acked-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Ibai Erkiaga 2018-04-05 05:19:27 -07:00 committed by Michal Simek
parent 1d9632a3cc
commit c64afba2fb
1 changed files with 8 additions and 0 deletions
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8
drivers/fpga/zynqpl.c
View file

@ -22,6 +22,7 @@
#define DEVCFG_CTRL_PCFG_PROG_B 0x40000000
#define DEVCFG_CTRL_PCFG_AES_EFUSE_MASK 0x00001000
#define DEVCFG_CTRL_PCAP_RATE_EN_MASK 0x02000000
#define DEVCFG_CTRL_PCFG_AES_EN_MASK 0x00000E00
#define DEVCFG_ISR_FATAL_ERROR_MASK 0x00740040
#define DEVCFG_ISR_ERROR_FLAGS_MASK 0x00340840
#define DEVCFG_ISR_RX_FIFO_OV 0x00040000
@ -522,6 +523,13 @@ int zynq_decrypt_load(u32 srcaddr, u32 srclen, u32 dstaddr, u32 dstlen,
return FPGA_FAIL;
}
/* Check AES engine is enabled */
if (!(readl(&devcfg_base->ctrl) &
DEVCFG_CTRL_PCFG_AES_EN_MASK)) {
printf("%s: AES engine is not enabled\n", __func__);
return FPGA_FAIL;
}
if (zynq_dma_xfer_init(bstype)) {
printf("%s: zynq_dma_xfer_init FAIL\n", __func__);
return FPGA_FAIL;