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, 77 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-5.4/816-sdhc-0002-LF-605-mmc-sdhci-of-esdhc-convert-to-use-esdhc_tunin.patch b/target/linux/layerscape/patches-5.4/816-sdhc-0002-LF-605-mmc-sdhci-of-esdhc-convert-to-use-esdhc_tunin.patch
new file mode 100644
index 0000000000..74dd63d8e5
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/816-sdhc-0002-LF-605-mmc-sdhci-of-esdhc-convert-to-use-esdhc_tunin.patch
@@ -0,0 +1,77 @@
+From e95c04bd6d9ebe081126184fb228461b1b3fa7aa Mon Sep 17 00:00:00 2001
+From: Yangbo Lu <yangbo.lu@nxp.com>
+Date: Thu, 12 Dec 2019 15:52:18 +0800
+Subject: [PATCH] LF-605 mmc: sdhci-of-esdhc: convert to use
+ esdhc_tuning_window_ptr()
+
+Convert to use a new function esdhc_tuning_window_ptr() to
+get tuning window start point and end point.
+
+Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
+Acked-by: Adrian Hunter <adrian.hunter@intel.com>
+---
+ drivers/mmc/host/sdhci-of-esdhc.c | 34 +++++++++++++++++++++-------------
+ 1 file changed, 21 insertions(+), 13 deletions(-)
+
+--- a/drivers/mmc/host/sdhci-of-esdhc.c
++++ b/drivers/mmc/host/sdhci-of-esdhc.c
+@@ -888,20 +888,11 @@ static void esdhc_tuning_block_enable(st
+ 	esdhc_clock_enable(host, true);
+ }
+ 
+-static void esdhc_prepare_sw_tuning(struct sdhci_host *host, u8 *window_start,
++static void esdhc_tuning_window_ptr(struct sdhci_host *host, u8 *window_start,
+ 				    u8 *window_end)
+ {
+-	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+-	struct sdhci_esdhc *esdhc = sdhci_pltfm_priv(pltfm_host);
+-	u8 tbstat_15_8, tbstat_7_0;
+ 	u32 val;
+ 
+-	if (esdhc->quirk_tuning_erratum_type1) {
+-		*window_start = 5 * esdhc->div_ratio;
+-		*window_end = 3 * esdhc->div_ratio;
+-		return;
+-	}
+-
+ 	/* Write TBCTL[11:8]=4'h8 */
+ 	val = sdhci_readl(host, ESDHC_TBCTL);
+ 	val &= ~(0xf << 8);
+@@ -920,6 +911,25 @@ static void esdhc_prepare_sw_tuning(stru
+ 	val = sdhci_readl(host, ESDHC_TBSTAT);
+ 	val = sdhci_readl(host, ESDHC_TBSTAT);
+ 
++	*window_end = val & 0xff;
++	*window_start = (val >> 8) & 0xff;
++}
++
++static void esdhc_prepare_sw_tuning(struct sdhci_host *host, u8 *window_start,
++				    u8 *window_end)
++{
++	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
++	struct sdhci_esdhc *esdhc = sdhci_pltfm_priv(pltfm_host);
++	u8 start_ptr, end_ptr;
++
++	if (esdhc->quirk_tuning_erratum_type1) {
++		*window_start = 5 * esdhc->div_ratio;
++		*window_end = 3 * esdhc->div_ratio;
++		return;
++	}
++
++	esdhc_tuning_window_ptr(host, &start_ptr, &end_ptr);
++
+ 	/* Reset data lines by setting ESDHCCTL[RSTD] */
+ 	sdhci_reset(host, SDHCI_RESET_DATA);
+ 	/* Write 32'hFFFF_FFFF to IRQSTAT register */
+@@ -930,10 +940,8 @@ static void esdhc_prepare_sw_tuning(stru
+ 	 * then program TBPTR[TB_WNDW_END_PTR] = 4 * div_ratio
+ 	 * and program TBPTR[TB_WNDW_START_PTR] = 8 * div_ratio.
+ 	 */
+-	tbstat_7_0 = val & 0xff;
+-	tbstat_15_8 = (val >> 8) & 0xff;
+ 
+-	if (abs(tbstat_15_8 - tbstat_7_0) > (4 * esdhc->div_ratio)) {
++	if (abs(start_ptr - end_ptr) > (4 * esdhc->div_ratio)) {
+ 		*window_start = 8 * esdhc->div_ratio;
+ 		*window_end = 4 * esdhc->div_ratio;
+ 	} else {