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authorRuchika Gupta <ruchika.gupta@nxp.com>2017-04-17 18:07:17 +0530
committerYork Sun <york.sun@nxp.com>2017-04-17 09:03:30 -0700
commit70f9661ca9130c446c146f582046024eddaaee31 (patch)
tree0aff9deda35c319115c63ed13f271bb17a2e3ef9 /arch/arm/cpu/armv8/fsl-layerscape/spl.c
parent11d14bfb756331bc26ee6ea118f9c1bd8aa0fc65 (diff)
arm: ls1043ardb: Add SD secure boot target
- Add SD secure boot target for ls1043ardb. - Implement FSL_LSCH2 specific spl_board_init() to setup CAAM stream ID and corresponding stream ID in SMMU. - Change the u-boot size defined by a macro for copying the main U-Boot by SPL to also include the u-boot Secure Boot header size as header is appended to u-boot image. So header will also be copied from SD to DDR. - CONFIG_MAX_SPL_SIZE is limited to 90KB. SPL is copied to OCRAM (128K) where 32K are reserved for use by boot ROM and 6K for secure boto header. - Error messages during SPL boot are limited to error code numbers instead of strings to reduce the size of SPL image. Signed-off-by: Vinitha Pillai-B57223 <vinitha.pillai@nxp.com> Signed-off-by: Sumit Garg <sumit.garg@nxp.com> Signed-off-by: Ruchika Gupta <ruchika.gupta@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
Diffstat (limited to 'arch/arm/cpu/armv8/fsl-layerscape/spl.c')
-rw-r--r--arch/arm/cpu/armv8/fsl-layerscape/spl.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/spl.c b/arch/arm/cpu/armv8/fsl-layerscape/spl.c
index 73a8680741..dfacf98e88 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/spl.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/spl.c
@@ -41,6 +41,24 @@ u32 spl_boot_mode(const u32 boot_device)
}
#ifdef CONFIG_SPL_BUILD
+
+void spl_board_init(void)
+{
+#if defined(CONFIG_SECURE_BOOT) && defined(CONFIG_FSL_LSCH2)
+ /*
+ * In case of Secure Boot, the IBR configures the SMMU
+ * to allow only Secure transactions.
+ * SMMU must be reset in bypass mode.
+ * Set the ClientPD bit and Clear the USFCFG Bit
+ */
+ u32 val;
+ val = (in_le32(SMMU_SCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK);
+ out_le32(SMMU_SCR0, val);
+ val = (in_le32(SMMU_NSCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK);
+ out_le32(SMMU_NSCR0, val);
+#endif
+}
+
void board_init_f(ulong dummy)
{
/* Clear global data */