ipq806x: Add support for linux-4.4

1)Changes

- Rebased the patches for linux-4.4.7
- Added patch to fix spi nor fifo and dma support
- Added patch to configure watchdog barktime

2)Testing

Tested on IPQ AP148 Board:
 a. NOR boot and NAND boot
 b. ethernet network and ath10k wifi
 c. ubi sysupgrade

UnTested
 dwc3 usb has not been validated on IPQ board(AP148)

3)Known Issues:
 Once we flash ubi image on AP148, and if we reset the board, uboot on
 first boot creates PEB and LEB for dynamic sized partitions, which is incorrect
 and not what linux expects which causes errors when trying to mount rootfs.
 In order to test this, we can use the below steps:
  a. Flash the ubi image on board and don't reset the board
  b. load the kernel fit image in RAM and boot from there.

Signed-off-by: Ram Chandra Jangir <rjangi@codeaurora.org>

1 files changed, 0 insertions, 117 deletions

diff --git a/target/linux/ipq806x/patches-4.1/710-stmmac-fix-ipq806x-DMA-configuration.patch b/target/linux/ipq806x/patches-4.1/710-stmmac-fix-ipq806x-DMA-configuration.patch
deleted file mode 100644
index c99f60768f..0000000000
--- a/target/linux/ipq806x/patches-4.1/710-stmmac-fix-ipq806x-DMA-configuration.patch
+++ /dev/null
@@ -1,117 +0,0 @@
---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
-+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
-@@ -259,6 +259,7 @@ static int ipq806x_gmac_probe(struct pla
- {
- 	struct plat_stmmacenet_data *plat_dat;
- 	struct stmmac_resources stmmac_res;
-+	struct stmmac_dma_cfg *dma_cfg;
- 	struct device *dev = &pdev->dev;
- 	struct ipq806x_gmac *gmac;
- 	int val;
-@@ -348,6 +349,17 @@ static int ipq806x_gmac_probe(struct pla
- 	plat_dat->bsp_priv = gmac;
- 	plat_dat->fix_mac_speed = ipq806x_gmac_fix_mac_speed;
- 
-+	dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*dma_cfg),
-+			       GFP_KERNEL);
-+
-+	dma_cfg->pbl = 32;
-+	dma_cfg->aal = 1;
-+	dma_cfg->burst_len = DMA_AXI_BLEN_16 |
-+		(7 << DMA_AXI_RD_OSR_LMT_SHIFT) |
-+		(7 << DMA_AXI_WR_OSR_LMT_SHIFT);
-+
-+	plat_dat->dma_cfg = dma_cfg;
-+
- 	return stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
- }
- 
---- a/include/linux/stmmac.h
-+++ b/include/linux/stmmac.h
-@@ -73,6 +73,9 @@
- 			| DMA_AXI_BLEN_32 | DMA_AXI_BLEN_64 \
- 			| DMA_AXI_BLEN_128 | DMA_AXI_BLEN_256)
- 
-+#define DMA_AXI_RD_OSR_LMT_SHIFT	16
-+#define DMA_AXI_WR_OSR_LMT_SHIFT	20
-+
- /* Platfrom data for platform device structure's platform_data field */
- 
- struct stmmac_mdio_bus_data {
-@@ -88,6 +91,7 @@ struct stmmac_mdio_bus_data {
- 
- struct stmmac_dma_cfg {
- 	int pbl;
-+	int aal;
- 	int fixed_burst;
- 	int mixed_burst;
- 	int burst_len;
---- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
-+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
-@@ -31,7 +31,8 @@
- #include "dwmac_dma.h"
- 
- static int dwmac1000_dma_init(void __iomem *ioaddr, int pbl, int fb, int mb,
--			      int burst_len, u32 dma_tx, u32 dma_rx, int atds)
-+			      int burst_len, u32 dma_tx, u32 dma_rx, int atds,
-+			      int aal)
- {
- 	u32 value = readl(ioaddr + DMA_BUS_MODE);
- 	int limit;
-@@ -62,6 +63,10 @@ static int dwmac1000_dma_init(void __iom
- 	value = DMA_BUS_MODE_PBL | ((pbl << DMA_BUS_MODE_PBL_SHIFT) |
- 				    (pbl << DMA_BUS_MODE_RPBL_SHIFT));
- 
-+	/* Address Aligned Beats */
-+	if (aal)
-+		value |= DMA_BUS_MODE_AAL;
-+
- 	/* Set the Fixed burst mode */
- 	if (fb)
- 		value |= DMA_BUS_MODE_FB;
---- a/drivers/net/ethernet/stmicro/stmmac/common.h
-+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
-@@ -352,7 +352,7 @@ extern const struct stmmac_desc_ops ndes
- struct stmmac_dma_ops {
- 	/* DMA core initialization */
- 	int (*init) (void __iomem *ioaddr, int pbl, int fb, int mb,
--		     int burst_len, u32 dma_tx, u32 dma_rx, int atds);
-+		     int burst_len, u32 dma_tx, u32 dma_rx, int atds, int aal);
- 	/* Dump DMA registers */
- 	void (*dump_regs) (void __iomem *ioaddr);
- 	/* Set tx/rx threshold in the csr6 register
---- a/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c
-+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c
-@@ -33,7 +33,8 @@
- #include "dwmac_dma.h"
- 
- static int dwmac100_dma_init(void __iomem *ioaddr, int pbl, int fb, int mb,
--			     int burst_len, u32 dma_tx, u32 dma_rx, int atds)
-+			     int burst_len, u32 dma_tx, u32 dma_rx, int atds,
-+			     int aal)
- {
- 	u32 value = readl(ioaddr + DMA_BUS_MODE);
- 	int limit;
---- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
-+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
-@@ -1639,9 +1639,11 @@ static int stmmac_init_dma_engine(struct
- 	int pbl = DEFAULT_DMA_PBL, fixed_burst = 0, burst_len = 0;
- 	int mixed_burst = 0;
- 	int atds = 0;
-+	int aal = 0;
- 
- 	if (priv->plat->dma_cfg) {
- 		pbl = priv->plat->dma_cfg->pbl;
-+		aal = priv->plat->dma_cfg->aal;
- 		fixed_burst = priv->plat->dma_cfg->fixed_burst;
- 		mixed_burst = priv->plat->dma_cfg->mixed_burst;
- 		burst_len = priv->plat->dma_cfg->burst_len;
-@@ -1652,7 +1654,7 @@ static int stmmac_init_dma_engine(struct
- 
- 	return priv->hw->dma->init(priv->ioaddr, pbl, fixed_burst, mixed_burst,
- 				   burst_len, priv->dma_tx_phy,
--				   priv->dma_rx_phy, atds);
-+				   priv->dma_rx_phy, atds, aal);
- }
- 
- /**