5 files changed, 43 insertions, 31 deletions

diff --git a/arch/mips/alchemy/devboards/db1200/setup.c b/arch/mips/alchemy/devboards/db1200/setup.c
index 4a8980027ecf..1dac4f27d334 100644
--- a/arch/mips/alchemy/devboards/db1200/setup.c
+++ b/arch/mips/alchemy/devboards/db1200/setup.c
@@ -23,6 +23,13 @@ void __init board_setup(void)
         unsigned long freq0, clksrc, div, pfc;
         unsigned short whoami;
 
+        /* Set Config[OD] (disable overlapping bus transaction):
+         * This gets rid of a _lot_ of spurious interrupts (especially
+         * wrt. IDE); but incurs ~10% performance hit in some
+         * cpu-bound applications.
+         */
+        set_c0_config(1 << 19);
+
         bcsr_init(DB1200_BCSR_PHYS_ADDR,
                   DB1200_BCSR_PHYS_ADDR + DB1200_BCSR_HEXLED_OFS);
 
diff --git a/arch/mips/alchemy/devboards/db1x00/board_setup.c b/arch/mips/alchemy/devboards/db1x00/board_setup.c
index 05f120ff90f9..5c956fe8760f 100644
--- a/arch/mips/alchemy/devboards/db1x00/board_setup.c
+++ b/arch/mips/alchemy/devboards/db1x00/board_setup.c
@@ -127,13 +127,10 @@ const char *get_system_type(void)
 void __init board_setup(void)
 {
         unsigned long bcsr1, bcsr2;
-        u32 pin_func;
 
         bcsr1 = DB1000_BCSR_PHYS_ADDR;
         bcsr2 = DB1000_BCSR_PHYS_ADDR + DB1000_BCSR_HEXLED_OFS;
 
-        pin_func = 0;
-
 #ifdef CONFIG_MIPS_DB1000
         printk(KERN_INFO "AMD Alchemy Au1000/Db1000 Board\n");
 #endif
@@ -164,12 +161,16 @@ void __init board_setup(void)
         /* Not valid for Au1550 */
 #if defined(CONFIG_IRDA) && \
    (defined(CONFIG_SOC_AU1000) || defined(CONFIG_SOC_AU1100))
-        /* Set IRFIRSEL instead of GPIO15 */
-        pin_func = au_readl(SYS_PINFUNC) | SYS_PF_IRF;
-        au_writel(pin_func, SYS_PINFUNC);
-        /* Power off until the driver is in use */
-        bcsr_mod(BCSR_RESETS, BCSR_RESETS_IRDA_MODE_MASK,
-                                BCSR_RESETS_IRDA_MODE_OFF);
+        {
+                u32 pin_func;
+
+                /* Set IRFIRSEL instead of GPIO15 */
+                pin_func = au_readl(SYS_PINFUNC) | SYS_PF_IRF;
+                au_writel(pin_func, SYS_PINFUNC);
+                /* Power off until the driver is in use */
+                bcsr_mod(BCSR_RESETS, BCSR_RESETS_IRDA_MODE_MASK,
+                         BCSR_RESETS_IRDA_MODE_OFF);
+        }
 #endif
         bcsr_write(BCSR_PCMCIA, 0);     /* turn off PCMCIA power */
 
@@ -177,31 +178,35 @@ void __init board_setup(void)
         alchemy_gpio1_input_enable();
 
 #ifdef CONFIG_MIPS_MIRAGE
-        /* GPIO[20] is output */
-        alchemy_gpio_direction_output(20, 0);
+        {
+                u32 pin_func;
 
-        /* Set GPIO[210:208] instead of SSI_0 */
-        pin_func = au_readl(SYS_PINFUNC) | SYS_PF_S0;
+                /* GPIO[20] is output */
+                alchemy_gpio_direction_output(20, 0);
 
-        /* Set GPIO[215:211] for LEDs */
-        pin_func |= 5 << 2;
+                /* Set GPIO[210:208] instead of SSI_0 */
+                pin_func = au_readl(SYS_PINFUNC) | SYS_PF_S0;
 
-        /* Set GPIO[214:213] for more LEDs */
-        pin_func |= 5 << 12;
+                /* Set GPIO[215:211] for LEDs */
+                pin_func |= 5 << 2;
 
-        /* Set GPIO[207:200] instead of PCMCIA/LCD */
-        pin_func |= SYS_PF_LCD | SYS_PF_PC;
-        au_writel(pin_func, SYS_PINFUNC);
+                /* Set GPIO[214:213] for more LEDs */
+                pin_func |= 5 << 12;
 
-        /*
-         * Enable speaker amplifier.  This should
-         * be part of the audio driver.
-         */
-        alchemy_gpio_direction_output(209, 1);
+                /* Set GPIO[207:200] instead of PCMCIA/LCD */
+                pin_func |= SYS_PF_LCD | SYS_PF_PC;
+                au_writel(pin_func, SYS_PINFUNC);
 
-        pm_power_off = mirage_power_off;
-        _machine_halt = mirage_power_off;
-        _machine_restart = (void(*)(char *))mips_softreset;
+                /*
+                 * Enable speaker amplifier.  This should
+                 * be part of the audio driver.
+                 */
+                alchemy_gpio_direction_output(209, 1);
+
+                pm_power_off = mirage_power_off;
+                _machine_halt = mirage_power_off;
+                _machine_restart = (void(*)(char *))mips_softreset;
+        }
 #endif
 
 #ifdef CONFIG_MIPS_BOSPORUS
diff --git a/arch/mips/alchemy/devboards/pb1000/board_setup.c b/arch/mips/alchemy/devboards/pb1000/board_setup.c
index 2d85c4b5be09..e64fdcbf75d0 100644
--- a/arch/mips/alchemy/devboards/pb1000/board_setup.c
+++ b/arch/mips/alchemy/devboards/pb1000/board_setup.c
@@ -65,7 +65,7 @@ void __init board_setup(void)
 
         /* Set AUX clock to 12 MHz * 8 = 96 MHz */
         au_writel(8, SYS_AUXPLL);
-        au_writel(0, SYS_PINSTATERD);
+        alchemy_gpio1_input_enable();
         udelay(100);
 
 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
diff --git a/arch/mips/alchemy/devboards/pb1500/board_setup.c b/arch/mips/alchemy/devboards/pb1500/board_setup.c
index 83f46215eb0c..3b4fa3206969 100644
--- a/arch/mips/alchemy/devboards/pb1500/board_setup.c
+++ b/arch/mips/alchemy/devboards/pb1500/board_setup.c
@@ -56,7 +56,7 @@ void __init board_setup(void)
         sys_clksrc = sys_freqctrl = pin_func = 0;
         /* Set AUX clock to 12 MHz * 8 = 96 MHz */
         au_writel(8, SYS_AUXPLL);
-        au_writel(0, SYS_PINSTATERD);
+        alchemy_gpio1_input_enable();
         udelay(100);
 
         /* GPIO201 is input for PCMCIA card detect */
diff --git a/arch/mips/alchemy/devboards/prom.c b/arch/mips/alchemy/devboards/prom.c
index baeb21385058..e5306b56da6d 100644
--- a/arch/mips/alchemy/devboards/prom.c
+++ b/arch/mips/alchemy/devboards/prom.c
@@ -62,5 +62,5 @@ void __init prom_init(void)
 
 void prom_putchar(unsigned char c)
 {
-    alchemy_uart_putchar(UART0_PHYS_ADDR, c);
+        alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
 }