gnu: arm-trusted-firmware: Disable HDCP support which depends on non-free

  binary blobs.

* gnu/packages/firmware (make-arm-trusted-firmware)[source]: Add patch.
  [arguments] Add phase to remove binary blobs.
* gnu/packages/patches/arm-trusted-firmware-disable-hdcp.patch: New patch.
* gnu/local.mk (dist_patch_DATA): Add patch.

Signed-off-by: Vagrant Cascadian <vagrant@debian.org>

2 files changed, 90 insertions, 1 deletions

diff --git a/gnu/packages/firmware.scm b/gnu/packages/firmware.scm
index 3c2b3590e1..904ed8c5fa 100644
--- a/gnu/packages/firmware.scm
+++ b/gnu/packages/firmware.scm
@@ -391,7 +391,8 @@ Virtual Machines.  OVMF contains a sample UEFI firmware for QEMU and KVM.")
         (file-name (git-file-name "arm-trusted-firmware" version))
         (patches (search-patches
                   "arm-trusted-firmware-optional-bin-generation.patch"
-                  "arm-trusted-firmware-rockchip-disable-binary.patch"))
+                  "arm-trusted-firmware-rockchip-disable-binary.patch"
+                  "arm-trusted-firmware-disable-hdcp.patch"))
        (sha256
         (base32
          "1gy5qskrjy8n3kxdcm1dx8b45l5b75n0pm8pq80wl6xic1ycy24r"))))
@@ -400,6 +401,12 @@ Virtual Machines.  OVMF contains a sample UEFI firmware for QEMU and KVM.")
      `(#:phases
        (modify-phases %standard-phases
          (delete 'configure) ; no configure script
+         ;; Remove binary blobs which do not contain source or proper license.
+         (add-after 'unpack 'remove-binary-blobs
+           (lambda _
+             (for-each (lambda (file)
+                         (delete-file file))
+                       (find-files "." ".*\\.bin$"))))
          (replace 'install
            (lambda* (#:key outputs #:allow-other-keys)
              (let ((out (assoc-ref outputs "out"))
diff --git a/gnu/packages/patches/arm-trusted-firmware-disable-hdcp.patch b/gnu/packages/patches/arm-trusted-firmware-disable-hdcp.patch
new file mode 100644
index 0000000000..edae2352d9
--- /dev/null
+++ b/gnu/packages/patches/arm-trusted-firmware-disable-hdcp.patch
@@ -0,0 +1,82 @@
+From c7f0cd054578152a250f784bf82c8ca53aa91a02 Mon Sep 17 00:00:00 2001
+From: Ziyuan Xu <xzy.xu@rock-chips.com>
+Date: Tue, 8 Oct 2019 10:27:05 +0800
+Subject: [PATCH] plat/rockchip: cliam a macro to enable hdcp feature for DP
+
+HDCP is using a binary driver, add macro PLAT_RK_DP_HDCP to make it as
+an option.
+
+Change-Id: I54ef1a3635a28e8ae56654bd1e91dfe011520a7f
+Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
+Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
+---
+ plat/rockchip/rk3399/plat_sip_calls.c |  4 ++++
+ plat/rockchip/rk3399/platform.mk      | 11 +++++++----
+ 2 files changed, 11 insertions(+), 4 deletions(-)
+
+diff --git a/plat/rockchip/rk3399/plat_sip_calls.c b/plat/rockchip/rk3399/plat_sip_calls.c
+index c2cc5b11c..ce8476c9a 100644
+--- a/plat/rockchip/rk3399/plat_sip_calls.c
++++ b/plat/rockchip/rk3399/plat_sip_calls.c
+@@ -56,17 +56,21 @@ uintptr_t rockchip_plat_sip_handler(uint32_t smc_fid,
+ 				    void *handle,
+ 				    u_register_t flags)
+ {
++#ifdef PLAT_RK_DP_HDCP
+ 	uint64_t x5, x6;
++#endif
+ 
+ 	switch (smc_fid) {
+ 	case RK_SIP_DDR_CFG:
+ 		SMC_RET1(handle, ddr_smc_handler(x1, x2, x3, x4));
++#ifdef PLAT_RK_DP_HDCP
+ 	case RK_SIP_HDCP_CONTROL:
+ 		SMC_RET1(handle, dp_hdcp_ctrl(x1));
+ 	case RK_SIP_HDCP_KEY_DATA64:
+ 		x5 = read_ctx_reg(get_gpregs_ctx(handle), CTX_GPREG_X5);
+ 		x6 = read_ctx_reg(get_gpregs_ctx(handle), CTX_GPREG_X6);
+ 		SMC_RET1(handle, dp_hdcp_store_key(x1, x2, x3, x4, x5, x6));
++#endif
+ 	default:
+ 		ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid);
+ 		SMC_RET1(handle, SMC_UNK);
+diff --git a/plat/rockchip/rk3399/platform.mk b/plat/rockchip/rk3399/platform.mk
+index 25c498da8..01577492d 100644
+--- a/plat/rockchip/rk3399/platform.mk
++++ b/plat/rockchip/rk3399/platform.mk
+@@ -57,7 +57,6 @@ BL31_SOURCES	+=	${RK_GIC_SOURCES}				\
+ 			${RK_PLAT_COMMON}/aarch64/platform_common.c	\
+ 			${RK_PLAT_COMMON}/rockchip_sip_svc.c		\
+ 			${RK_PLAT_SOC}/plat_sip_calls.c			\
+-			${RK_PLAT_SOC}/drivers/dp/cdn_dp.c		\
+ 			${RK_PLAT_SOC}/drivers/gpio/rk3399_gpio.c	\
+ 			${RK_PLAT_SOC}/drivers/pmu/pmu.c		\
+ 			${RK_PLAT_SOC}/drivers/pmu/pmu_fw.c		\
+@@ -89,17 +88,21 @@ $(eval $(call add_define,RK3399M0FW))
+ RK3399M0PMUFW=${BUILD_M0}/${PLAT_M0}pmu.bin
+ $(eval $(call add_define,RK3399M0PMUFW))
+ 
++ifdef PLAT_RK_DP_HDCP
++BL31_SOURCES	+= ${RK_PLAT_SOC}/drivers/dp/cdn_dp.c
++
+ HDCPFW=${RK_PLAT_SOC}/drivers/dp/hdcp.bin
+ $(eval $(call add_define,HDCPFW))
+ 
++${BUILD_PLAT}/bl31/cdn_dp.o: CCACHE_EXTRAFILES=$(HDCPFW)
++${RK_PLAT_SOC}/drivers/dp/cdn_dp.c: $(HDCPFW)
++endif
++
+ # CCACHE_EXTRAFILES is needed because ccache doesn't handle .incbin
+ export CCACHE_EXTRAFILES
+ ${BUILD_PLAT}/bl31/pmu_fw.o: CCACHE_EXTRAFILES=$(RK3399M0FW):$(RK3399M0PMUFW)
+ ${RK_PLAT_SOC}/drivers/pmu/pmu_fw.c: $(RK3399M0FW)
+ 
+-${BUILD_PLAT}/bl31/cdn_dp.o: CCACHE_EXTRAFILES=$(HDCPFW)
+-${RK_PLAT_SOC}/drivers/dp/cdn_dp.c: $(HDCPFW)
+-
+ $(eval $(call MAKE_PREREQ_DIR,${BUILD_M0},${BUILD_PLAT}))
+ .PHONY: $(RK3399M0FW)
+ $(RK3399M0FW): | ${BUILD_M0}
+-- 
+2.20.1
+