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-rw-r--r--target/linux/brcm47xx/patches-4.1/031-11-MIPS-BCM47xx-Simplify-handling-SPROM-revisions.patch114
1 files changed, 114 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-4.1/031-11-MIPS-BCM47xx-Simplify-handling-SPROM-revisions.patch b/target/linux/brcm47xx/patches-4.1/031-11-MIPS-BCM47xx-Simplify-handling-SPROM-revisions.patch
new file mode 100644
index 0000000000..7302c65c03
--- /dev/null
+++ b/target/linux/brcm47xx/patches-4.1/031-11-MIPS-BCM47xx-Simplify-handling-SPROM-revisions.patch
@@ -0,0 +1,114 @@
+From 590605c6bc31d5cbfcb3844ef98eb10ff7ce24c3 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Date: Sun, 21 Jun 2015 15:25:49 +0200
+Subject: [PATCH] MIPS: BCM47xx: Simplify handling SPROM revisions
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+After the big SPROM cleanup moving code to the bcm47xx_sprom_fill_auto
+we ended up with few tiny functions, two of them being identical. Let's
+get rid of these [12]-liners.
+This also stops extracting higher SPROM revisions as revision 1. Now we
+have that function nicely handling revisions we don't need it.
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+Cc: linux-mips@linux-mips.org
+Cc: Hauke Mehrtens <hauke@hauke-m.de>
+Patchwork: https://patchwork.linux-mips.org/patch/10569/
+Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
+---
+ arch/mips/bcm47xx/sprom.c | 53 ++++++++---------------------------------------
+ 1 file changed, 9 insertions(+), 44 deletions(-)
+
+diff --git a/arch/mips/bcm47xx/sprom.c b/arch/mips/bcm47xx/sprom.c
+index b0d62e7..2d5c7a7 100644
+--- a/arch/mips/bcm47xx/sprom.c
++++ b/arch/mips/bcm47xx/sprom.c
+@@ -200,6 +200,9 @@ static void bcm47xx_sprom_fill_auto(struct ssb_sprom *sprom,
+ const char *pre = prefix;
+ bool fb = fallback;
+
++ /* Broadcom extracts it for rev 8+ but it was found on 2 and 4 too */
++ ENTRY(0xfffffffe, u16, pre, "devid", dev_id, 0, fallback);
++
+ ENTRY(0xfffffffe, u16, pre, "boardrev", board_rev, 0, true);
+ ENTRY(0xfffffffe, u32, pre, "boardflags", boardflags, 0, fb);
+ ENTRY(0xfffffff0, u32, pre, "boardflags2", boardflags2, 0, fb);
+@@ -412,27 +415,6 @@ static void bcm47xx_sprom_fill_auto(struct ssb_sprom *sprom,
+ }
+ #undef ENTRY /* It's specififc, uses local variable, don't use it (again). */
+
+-static void bcm47xx_fill_sprom_r1234589(struct ssb_sprom *sprom,
+- const char *prefix, bool fallback)
+-{
+- nvram_read_u16(prefix, NULL, "devid", &sprom->dev_id, 0, fallback);
+- nvram_read_alpha2(prefix, "ccode", sprom->alpha2, fallback);
+-}
+-
+-static void bcm47xx_fill_sprom_r3(struct ssb_sprom *sprom, const char *prefix,
+- bool fallback)
+-{
+- nvram_read_leddc(prefix, "leddc", &sprom->leddc_on_time,
+- &sprom->leddc_off_time, fallback);
+-}
+-
+-static void bcm47xx_fill_sprom_r4589(struct ssb_sprom *sprom,
+- const char *prefix, bool fallback)
+-{
+- nvram_read_leddc(prefix, "leddc", &sprom->leddc_on_time,
+- &sprom->leddc_off_time, fallback);
+-}
+-
+ static void bcm47xx_fill_sprom_path_r4589(struct ssb_sprom *sprom,
+ const char *prefix, bool fallback)
+ {
+@@ -589,39 +571,22 @@ void bcm47xx_fill_sprom(struct ssb_sprom *sprom, const char *prefix,
+
+ nvram_read_u8(prefix, NULL, "sromrev", &sprom->revision, 0, fallback);
+
++ /* Entries requiring custom functions */
++ nvram_read_alpha2(prefix, "ccode", sprom->alpha2, fallback);
++ if (sprom->revision >= 3)
++ nvram_read_leddc(prefix, "leddc", &sprom->leddc_on_time,
++ &sprom->leddc_off_time, fallback);
++
+ switch (sprom->revision) {
+- case 1:
+- bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
+- break;
+- case 2:
+- bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
+- break;
+- case 3:
+- bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
+- bcm47xx_fill_sprom_r3(sprom, prefix, fallback);
+- break;
+ case 4:
+ case 5:
+- bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
+- bcm47xx_fill_sprom_r4589(sprom, prefix, fallback);
+ bcm47xx_fill_sprom_path_r4589(sprom, prefix, fallback);
+ bcm47xx_fill_sprom_path_r45(sprom, prefix, fallback);
+ break;
+ case 8:
+- bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
+- bcm47xx_fill_sprom_r4589(sprom, prefix, fallback);
+- bcm47xx_fill_sprom_path_r4589(sprom, prefix, fallback);
+- break;
+ case 9:
+- bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
+- bcm47xx_fill_sprom_r4589(sprom, prefix, fallback);
+ bcm47xx_fill_sprom_path_r4589(sprom, prefix, fallback);
+ break;
+- default:
+- pr_warn("Unsupported SPROM revision %d detected. Will extract v1\n",
+- sprom->revision);
+- sprom->revision = 1;
+- bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
+ }
+
+ bcm47xx_sprom_fill_auto(sprom, prefix, fallback);
+--
+1.8.4.5
+