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authorDmitri Vorobiev <dmitri.vorobiev@gmail.com>2008-01-24 19:52:56 +0300
committerRalf Baechle <ralf@linux-mips.org>2008-01-29 10:15:05 +0000
commit750dc31c480e5062b526134f090a029afd7e17fd (patch)
tree605e2e9cb72232fbd50954fdaaf1bec2b8d0bb97
parentef7645cfe6f785de3bdc2ae6016924f46f614d61 (diff)
downloadlinux-750dc31c480e5062b526134f090a029afd7e17fd.tar.gz
[MIPS] Malta: remaining bits of the board support code cleanup
This patch factors out the code, which handles the Bonito system controller. The case of not supporting the DMA coherency is handled separately to make the logic obvious. Besides, a couple of empty lines added to beautify the code even further. No functional changes introduced. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
-rw-r--r--arch/mips/mips-boards/malta/malta_setup.c80
1 files changed, 42 insertions, 38 deletions
diff --git a/arch/mips/mips-boards/malta/malta_setup.c b/arch/mips/mips-boards/malta/malta_setup.c
index 541f4e76747..2cd8f5734b3 100644
--- a/arch/mips/mips-boards/malta/malta_setup.c
+++ b/arch/mips/mips-boards/malta/malta_setup.c
@@ -1,6 +1,7 @@
/*
* Carsten Langgaard, carstenl@mips.com
* Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
+ * Copyright (C) Dmitri Vorobiev
*
* This program is free software; you can distribute it and/or modify it
* under the terms of the GNU General Public License (Version 2) as
@@ -145,6 +146,41 @@ static void __init screen_info_setup(void)
}
#endif
+static void __init bonito_quirks_setup(void)
+{
+ char *argptr;
+
+ argptr = prom_getcmdline();
+ if (strstr(argptr, "debug")) {
+ BONITO_BONGENCFG |= BONITO_BONGENCFG_DEBUGMODE;
+ printk(KERN_INFO "Enabled Bonito debug mode\n");
+ } else
+ BONITO_BONGENCFG &= ~BONITO_BONGENCFG_DEBUGMODE;
+
+#ifdef CONFIG_DMA_COHERENT
+ if (BONITO_PCICACHECTRL & BONITO_PCICACHECTRL_CPUCOH_PRES) {
+ BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_CPUCOH_EN;
+ printk(KERN_INFO "Enabled Bonito CPU coherency\n");
+
+ argptr = prom_getcmdline();
+ if (strstr(argptr, "iobcuncached")) {
+ BONITO_PCICACHECTRL &= ~BONITO_PCICACHECTRL_IOBCCOH_EN;
+ BONITO_PCIMEMBASECFG = BONITO_PCIMEMBASECFG &
+ ~(BONITO_PCIMEMBASECFG_MEMBASE0_CACHED |
+ BONITO_PCIMEMBASECFG_MEMBASE1_CACHED);
+ printk(KERN_INFO "Disabled Bonito IOBC coherency\n");
+ } else {
+ BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_IOBCCOH_EN;
+ BONITO_PCIMEMBASECFG |=
+ (BONITO_PCIMEMBASECFG_MEMBASE0_CACHED |
+ BONITO_PCIMEMBASECFG_MEMBASE1_CACHED);
+ printk(KERN_INFO "Enabled Bonito IOBC coherency\n");
+ }
+ } else
+ panic("Hardware DMA cache coherency not supported");
+#endif
+}
+
void __init plat_mem_setup(void)
{
unsigned int i;
@@ -164,54 +200,22 @@ void __init plat_mem_setup(void)
kgdb_config();
#endif
- if (mips_revision_sconid == MIPS_REVISION_SCON_BONITO) {
- char *argptr;
-
- argptr = prom_getcmdline();
- if (strstr(argptr, "debug")) {
- BONITO_BONGENCFG |= BONITO_BONGENCFG_DEBUGMODE;
- printk("Enabled Bonito debug mode\n");
- }
- else
- BONITO_BONGENCFG &= ~BONITO_BONGENCFG_DEBUGMODE;
-
#ifdef CONFIG_DMA_COHERENT
- if (BONITO_PCICACHECTRL & BONITO_PCICACHECTRL_CPUCOH_PRES) {
- BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_CPUCOH_EN;
- printk("Enabled Bonito CPU coherency\n");
-
- argptr = prom_getcmdline();
- if (strstr(argptr, "iobcuncached")) {
- BONITO_PCICACHECTRL &= ~BONITO_PCICACHECTRL_IOBCCOH_EN;
- BONITO_PCIMEMBASECFG = BONITO_PCIMEMBASECFG &
- ~(BONITO_PCIMEMBASECFG_MEMBASE0_CACHED |
- BONITO_PCIMEMBASECFG_MEMBASE1_CACHED);
- printk("Disabled Bonito IOBC coherency\n");
- }
- else {
- BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_IOBCCOH_EN;
- BONITO_PCIMEMBASECFG |=
- (BONITO_PCIMEMBASECFG_MEMBASE0_CACHED |
- BONITO_PCIMEMBASECFG_MEMBASE1_CACHED);
- printk("Enabled Bonito IOBC coherency\n");
- }
- }
- else
- panic("Hardware DMA cache coherency not supported");
-
-#endif
- }
-#ifdef CONFIG_DMA_COHERENT
- else
+ if (mips_revision_sconid != MIPS_REVISION_SCON_BONITO)
panic("Hardware DMA cache coherency not supported");
#endif
+ if (mips_revision_sconid == MIPS_REVISION_SCON_BONITO)
+ bonito_quirks_setup();
+
#ifdef CONFIG_BLK_DEV_IDE
pci_clock_check();
#endif
+
#ifdef CONFIG_BLK_DEV_FD
fd_activate();
#endif
+
#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE)
screen_info_setup();
#endif