layerscape: add patches-5.4

Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release
which was tagged LSDK-20.04-V5.4.
https://source.codeaurora.org/external/qoriq/qoriq-components/linux/

For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in
LSDK, port the dts patches from 4.14.

The patches are sorted into the following categories:
  301-arch-xxxx
  302-dts-xxxx
  303-core-xxxx
  701-net-xxxx
  801-audio-xxxx
  802-can-xxxx
  803-clock-xxxx
  804-crypto-xxxx
  805-display-xxxx
  806-dma-xxxx
  807-gpio-xxxx
  808-i2c-xxxx
  809-jailhouse-xxxx
  810-keys-xxxx
  811-kvm-xxxx
  812-pcie-xxxx
  813-pm-xxxx
  814-qe-xxxx
  815-sata-xxxx
  816-sdhc-xxxx
  817-spi-xxxx
  818-thermal-xxxx
  819-uart-xxxx
  820-usb-xxxx
  821-vfio-xxxx

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>

1 files changed, 47 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0039-staging-fsl_qbman-Calculate-valid-bit-from-MC-RR.patch b/target/linux/layerscape/patches-5.4/701-net-0039-staging-fsl_qbman-Calculate-valid-bit-from-MC-RR.patch
new file mode 100644
index 0000000000..1e4cfe8069
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0039-staging-fsl_qbman-Calculate-valid-bit-from-MC-RR.patch
@@ -0,0 +1,47 @@
+From 5ebee96094c5a97a89a986108242cca9d853ff55 Mon Sep 17 00:00:00 2001
+From: Roy Pledge <roy.pledge@nxp.com>
+Date: Wed, 27 Sep 2017 14:50:08 -0400
+Subject: [PATCH] staging/fsl_qbman: Calculate valid bit from MC-RR
+
+Use the management commmand response registers to determine
+the next expected valid bit when initializing a software
+portal. This avoids using the wrong valid bit in cases
+where a command was partially written but then not
+completed.
+
+Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
+---
+ drivers/staging/fsl_qbman/qman_low.h | 19 +++++++++++++++++--
+ 1 file changed, 17 insertions(+), 2 deletions(-)
+
+--- a/drivers/staging/fsl_qbman/qman_low.h
++++ b/drivers/staging/fsl_qbman/qman_low.h
+@@ -1095,11 +1095,26 @@ static inline void qm_mr_set_ithresh(str
+ 
+ static inline int qm_mc_init(struct qm_portal *portal)
+ {
++	u8 rr0, rr1;
+ 	register struct qm_mc *mc = &portal->mc;
++
+ 	mc->cr = portal->addr.addr_ce + QM_CL_CR;
+ 	mc->rr = portal->addr.addr_ce + QM_CL_RR0;
+-	mc->rridx = (__raw_readb(&mc->cr->__dont_write_directly__verb) &
+-			QM_MCC_VERB_VBIT) ?  0 : 1;
++
++	/*
++	 * The expected valid bit polarity for the next CR command is 0
++	 * if RR1 contains a valid response, and is 1 if RR0 contains a
++	 * valid response. If both RR contain all 0, this indicates either
++	 * that no command has been executed since reset (in which case the
++	 * expected valid bit polarity is 1)
++	 */
++	rr0 = __raw_readb(&mc->rr->verb);
++	rr1 = __raw_readb(&(mc->rr+1)->verb);
++	if ((rr0 == 0 && rr1 == 0) || rr0 != 0)
++		mc->rridx = 1;
++	else
++		mc->rridx = 0;
++
+ 	mc->vbit = mc->rridx ? QM_MCC_VERB_VBIT : 0;
+ #ifdef CONFIG_FSL_DPA_CHECKING
+ 	mc->state = qman_mc_idle;