From: Rafał Miłecki <zajec5@gmail.com>
Date: Sun, 25 Oct 2015 21:16:47 +0000 (+0100)
Subject: MIPS: BCM47xx: Support on-SoC bus in SPROM reading function
X-Git-Tag: firefly_0821_release~176^2~683^2~53
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=daa7ce02513d2188fe6f5ff47ce5ef83eb7de739;p=firefly-linux-kernel-4.4.55.git

MIPS: BCM47xx: Support on-SoC bus in SPROM reading function

To support (extract) SPROM on Broadcom ARM devices we should separate
SPROM code and make it a separated module. We won't want to export
bcm47xx_fill_sprom symbol so we should support SoC SPROM in the standard
fallback function and then modify ssb to use it.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11355/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/arch/mips/bcm47xx/sprom.c b/arch/mips/bcm47xx/sprom.c
index 2d5c7a7f24bb..e19c1b9b6697 100644
--- a/arch/mips/bcm47xx/sprom.c
+++ b/arch/mips/bcm47xx/sprom.c
@@ -610,14 +610,18 @@ static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out)
 {
 	char prefix[10];
 
-	if (bus->bustype == SSB_BUSTYPE_PCI) {
+	switch (bus->bustype) {
+	case SSB_BUSTYPE_SSB:
+		bcm47xx_fill_sprom(out, NULL, false);
+		return 0;
+	case SSB_BUSTYPE_PCI:
 		memset(out, 0, sizeof(struct ssb_sprom));
 		snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
 			 bus->host_pci->bus->number + 1,
 			 PCI_SLOT(bus->host_pci->devfn));
 		bcm47xx_fill_sprom(out, prefix, false);
 		return 0;
-	} else {
+	default:
 		pr_warn("Unable to fill SPROM for given bustype.\n");
 		return -EINVAL;
 	}