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Diffstat (limited to 'arch/mips/au1000/pb1100/board_setup.c')
-rw-r--r--arch/mips/au1000/pb1100/board_setup.c50
1 files changed, 26 insertions, 24 deletions
diff --git a/arch/mips/au1000/pb1100/board_setup.c b/arch/mips/au1000/pb1100/board_setup.c
index 656164c8e9c..c0bfd59a7a3 100644
--- a/arch/mips/au1000/pb1100/board_setup.c
+++ b/arch/mips/au1000/pb1100/board_setup.c
@@ -1,7 +1,6 @@
/*
- * Copyright 2002 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- * ppopov@mvista.com or source@mvista.com
+ * Copyright 2002, 2008 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc. <source@mvista.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -32,15 +31,15 @@
void board_reset(void)
{
- /* Hit BCSR.SYSTEM_CONTROL[SW_RST] */
- au_writel(0x00000000, 0xAE00001C);
+ /* Hit BCSR.RST_VDDI[SOFT_RESET] */
+ au_writel(0x00000000, PB1100_RST_VDDI);
}
void __init board_setup(void)
{
- volatile void __iomem * base = (volatile void __iomem *) 0xac000000UL;
+ volatile void __iomem *base = (volatile void __iomem *)0xac000000UL;
- // set AUX clock to 12MHz * 8 = 96 MHz
+ /* Set AUX clock to 12 MHz * 8 = 96 MHz */
au_writel(8, SYS_AUXPLL);
au_writel(0, SYS_PININPUTEN);
udelay(100);
@@ -49,44 +48,47 @@ void __init board_setup(void)
{
u32 pin_func, sys_freqctrl, sys_clksrc;
- // configure pins GPIO[14:9] as GPIO
- pin_func = au_readl(SYS_PINFUNC) & (u32)(~0x80);
+ /* Configure pins GPIO[14:9] as GPIO */
+ pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_UR3;
- /* zero and disable FREQ2 */
+ /* Zero and disable FREQ2 */
sys_freqctrl = au_readl(SYS_FREQCTRL0);
sys_freqctrl &= ~0xFFF00000;
au_writel(sys_freqctrl, SYS_FREQCTRL0);
- /* zero and disable USBH/USBD/IrDA clock */
+ /* Zero and disable USBH/USBD/IrDA clock */
sys_clksrc = au_readl(SYS_CLKSRC);
- sys_clksrc &= ~0x0000001F;
+ sys_clksrc &= ~(SYS_CS_CIR | SYS_CS_DIR | SYS_CS_MIR_MASK);
au_writel(sys_clksrc, SYS_CLKSRC);
sys_freqctrl = au_readl(SYS_FREQCTRL0);
sys_freqctrl &= ~0xFFF00000;
sys_clksrc = au_readl(SYS_CLKSRC);
- sys_clksrc &= ~0x0000001F;
+ sys_clksrc &= ~(SYS_CS_CIR | SYS_CS_DIR | SYS_CS_MIR_MASK);
- // FREQ2 = aux/2 = 48 MHz
- sys_freqctrl |= ((0<<22) | (1<<21) | (1<<20));
+ /* FREQ2 = aux / 2 = 48 MHz */
+ sys_freqctrl |= (0 << SYS_FC_FRDIV2_BIT) |
+ SYS_FC_FE2 | SYS_FC_FS2;
au_writel(sys_freqctrl, SYS_FREQCTRL0);
/*
- * Route 48MHz FREQ2 into USBH/USBD/IrDA
+ * Route 48 MHz FREQ2 into USBH/USBD/IrDA
*/
- sys_clksrc |= ((4<<2) | (0<<1) | 0 );
+ sys_clksrc |= SYS_CS_MUX_FQ2 << SYS_CS_MIR_BIT;
au_writel(sys_clksrc, SYS_CLKSRC);
- /* setup the static bus controller */
+ /* Setup the static bus controller */
au_writel(0x00000002, MEM_STCFG3); /* type = PCMCIA */
au_writel(0x280E3D07, MEM_STTIME3); /* 250ns cycle time */
au_writel(0x10000000, MEM_STADDR3); /* any PCMCIA select */
- // get USB Functionality pin state (device vs host drive pins)
- pin_func = au_readl(SYS_PINFUNC) & (u32)(~0x8000);
- // 2nd USB port is USB host
- pin_func |= 0x8000;
+ /*
+ * Get USB Functionality pin state (device vs host drive pins).
+ */
+ pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_USB;
+ /* 2nd USB port is USB host. */
+ pin_func |= SYS_PF_USB;
au_writel(pin_func, SYS_PINFUNC);
}
#endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */
@@ -94,12 +96,12 @@ void __init board_setup(void)
/* Enable sys bus clock divider when IDLE state or no bus activity. */
au_writel(au_readl(SYS_POWERCTRL) | (0x3 << 5), SYS_POWERCTRL);
- // Enable the RTC if not already enabled
+ /* Enable the RTC if not already enabled. */
if (!(readb(base + 0x28) & 0x20)) {
writeb(readb(base + 0x28) | 0x20, base + 0x28);
au_sync();
}
- // Put the clock in BCD mode
+ /* Put the clock in BCD mode. */
if (readb(base + 0x2C) & 0x4) { /* reg B */
writeb(readb(base + 0x2c) & ~0x4, base + 0x2c);
au_sync();