From: Carlos O'Donell <carlos@codesourcery.com>
Date: Mon, 22 Feb 2010 23:25:59 +0000 (+0000)
Subject: parisc: Set PCI CLS early in boot.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=5fd4514bb351b5ecb0da3692fff70741e5ed200c;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

parisc: Set PCI CLS early in boot.

Set the PCI CLS early in the boot process to prevent
device failures. In pcibios_set_master use the new
pci_cache_line_size instead of a hard-coded value.

Signed-off-by: Carlos O'Donell <carlos@codesourcery.com>
Reviewed-by: Grant Grundler <grundler@google.com>
Signed-off-by: Kyle McMartin <kyle@redhat.com>
---

diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index f7064abc3bb6..9e74bfe071dc 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -18,7 +18,6 @@
 
 #include <asm/io.h>
 #include <asm/system.h>
-#include <asm/cache.h>		/* for L1_CACHE_BYTES */
 #include <asm/superio.h>
 
 #define DEBUG_RESOURCES 0
@@ -123,6 +122,10 @@ static int __init pcibios_init(void)
 	} else {
 		printk(KERN_WARNING "pci_bios != NULL but init() is!\n");
 	}
+
+	/* Set the CLS for PCI as early as possible. */
+	pci_cache_line_size = pci_dfl_cache_line_size;
+
 	return 0;
 }
 
@@ -171,7 +174,7 @@ void pcibios_set_master(struct pci_dev *dev)
 	** upper byte is PCI_LATENCY_TIMER.
 	*/
 	pci_write_config_word(dev, PCI_CACHE_LINE_SIZE,
-				(0x80 << 8) | (L1_CACHE_BYTES / sizeof(u32)));
+			      (0x80 << 8) | pci_cache_line_size);
 }