1 files changed, 0 insertions, 88 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0803-pcie-brcmstb-Bounce-buffer-support-is-for-BCM2711B0.patch b/target/linux/bcm27xx/patches-4.19/950-0803-pcie-brcmstb-Bounce-buffer-support-is-for-BCM2711B0.patch
deleted file mode 100644
index 05172ebcec..0000000000
--- a/target/linux/bcm27xx/patches-4.19/950-0803-pcie-brcmstb-Bounce-buffer-support-is-for-BCM2711B0.patch
+++ /dev/null
@@ -1,88 +0,0 @@
-From 4b777f389e22abb364e398f45673e54bcda9cc55 Mon Sep 17 00:00:00 2001
-From: Phil Elwell <phil@raspberrypi.org>
-Date: Fri, 12 Jul 2019 11:41:25 +0100
-Subject: [PATCH] pcie-brcmstb: Bounce buffer support is for BCM2711B0
-
-Add a new compatible string to identify BCM2711B0, as later revisions
-don't require the bounce buffer support.
-
-Signed-off-by: Phil Elwell <phil@raspberrypi.org>
----
- drivers/pci/controller/pcie-brcmstb.c | 31 +++++++++++++++++++++++----
- 1 file changed, 27 insertions(+), 4 deletions(-)
-
---- a/drivers/pci/controller/pcie-brcmstb.c
-+++ b/drivers/pci/controller/pcie-brcmstb.c
-@@ -206,6 +206,8 @@ enum pcie_type {
- 	BCM7435,
- 	GENERIC,
- 	BCM7278,
-+	BCM2711B0,
-+	BCM2711,
- };
- 
- struct brcm_window {
-@@ -302,6 +304,20 @@ static const int pcie_offsets[] = {
- 	[EXT_CFG_DATA]   = 0x8000,
- };
- 
-+static const struct pcie_cfg_data bcm2711b0_cfg = {
-+	.reg_field_info	= pcie_reg_field_info,
-+	.offsets	= pcie_offsets,
-+	.max_burst_size	= BURST_SIZE_128,
-+	.type		= BCM2711B0,
-+};
-+
-+static const struct pcie_cfg_data bcm2711_cfg = {
-+	.reg_field_info	= pcie_reg_field_info,
-+	.offsets	= pcie_offsets,
-+	.max_burst_size	= BURST_SIZE_128,
-+	.type		= BCM2711,
-+};
-+
- static const struct pcie_cfg_data bcm7435_cfg = {
- 	.reg_field_info	= pcie_reg_field_info,
- 	.offsets	= pcie_offsets,
-@@ -312,7 +328,7 @@ static const struct pcie_cfg_data bcm743
- static const struct pcie_cfg_data generic_cfg = {
- 	.reg_field_info	= pcie_reg_field_info,
- 	.offsets	= pcie_offsets,
--	.max_burst_size	= BURST_SIZE_128, // before BURST_SIZE_512
-+	.max_burst_size	= BURST_SIZE_512,
- 	.type		= GENERIC,
- };
- 
-@@ -380,7 +396,7 @@ static unsigned int bounce_buffer = 32*1
- module_param(bounce_buffer, uint, 0644);
- MODULE_PARM_DESC(bounce_buffer, "Size of bounce buffer");
- 
--static unsigned int bounce_threshold = 0xc0000000;
-+static unsigned int bounce_threshold;
- module_param(bounce_threshold, uint, 0644);
- MODULE_PARM_DESC(bounce_threshold, "Bounce threshold");
- 
-@@ -1681,6 +1697,8 @@ static int brcm_pcie_remove(struct platf
- }
- 
- static const struct of_device_id brcm_pcie_match[] = {
-+	{ .compatible = "brcm,bcm2711b0-pcie", .data = &bcm2711b0_cfg },
-+	{ .compatible = "brcm,bcm2711-pcie", .data = &bcm2711_cfg },
- 	{ .compatible = "brcm,bcm7425-pcie", .data = &bcm7425_cfg },
- 	{ .compatible = "brcm,bcm7435-pcie", .data = &bcm7435_cfg },
- 	{ .compatible = "brcm,bcm7278-pcie", .data = &bcm7278_cfg },
-@@ -1736,8 +1754,13 @@ static int brcm_pcie_probe(struct platfo
- 	if (IS_ERR(base))
- 		return PTR_ERR(base);
- 
--	/* To Do: Add hardware check if this ever gets fixed */
--	if (max_pfn > (bounce_threshold/PAGE_SIZE)) {
-+	if (!bounce_threshold) {
-+		/* PCIe on BCM2711B0 can only address 3GB */
-+		if (pcie->type == BCM2711B0 || pcie->type == GENERIC)
-+			bounce_threshold = 0xc0000000;
-+	}
-+
-+	if (bounce_threshold && (max_pfn > (bounce_threshold/PAGE_SIZE))) {
- 		int ret;
- 		ret = brcm_pcie_bounce_init(&pdev->dev, bounce_buffer,
- 					    (dma_addr_t)bounce_threshold);