diff options
Diffstat (limited to 'arch/ppc/boot/simple/misc-ev64260.c')
| -rw-r--r-- | arch/ppc/boot/simple/misc-ev64260.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/ppc/boot/simple/misc-ev64260.c b/arch/ppc/boot/simple/misc-ev64260.c new file mode 100644 index 000000000000..52ece6937a7a --- /dev/null +++ b/arch/ppc/boot/simple/misc-ev64260.c @@ -0,0 +1,57 @@ +/* + * arch/ppc/boot/simple/misc-ev64260.c + * + * Host bridge init code for the Marvell/Galileo EV-64260-BP evaluation board + * with a GT64260 onboard. + * + * Author: Mark A. Greer <mgreer@mvista.com> + * + * 2001 (c) MontaVista Software, Inc. This file is licensed under + * the terms of the GNU General Public License version 2. This program + * is licensed "as is" without any warranty of any kind, whether express + * or implied. + */ + +#include <linux/config.h> +#include <linux/types.h> +#include <asm/reg.h> +#include <asm/io.h> +#include <asm/mv64x60_defs.h> +#include <platforms/ev64260.h> + +#ifdef CONFIG_SERIAL_MPSC_CONSOLE +extern u32 mv64x60_console_baud; +extern u32 mv64x60_mpsc_clk_src; +extern u32 mv64x60_mpsc_clk_freq; +#endif + +void +mv64x60_board_init(void __iomem *old_base, void __iomem *new_base) +{ + u32 p, v; + + /* DINK doesn't enable 745x timebase, so enable here (Adrian Cox) */ + p = mfspr(SPRN_PVR); + p >>= 16; + + /* Reasonable SWAG at a 745x PVR value */ + if (((p & 0xfff0) == 0x8000) && (p != 0x800c)) { + v = mfspr(SPRN_HID0); + v |= HID0_TBEN; + mtspr(SPRN_HID0, v); + } + +#ifdef CONFIG_SERIAL_8250_CONSOLE + /* + * Change device bus 2 window so that bootoader can do I/O thru + * 8250/16550 UART that's mapped in that window. + */ + out_le32(new_base + MV64x60_CPU2DEV_2_BASE, EV64260_UART_BASE >> 20); + out_le32(new_base + MV64x60_CPU2DEV_2_SIZE, EV64260_UART_END >> 20); + __asm__ __volatile__("sync"); +#elif defined(CONFIG_SERIAL_MPSC_CONSOLE) + mv64x60_console_baud = EV64260_DEFAULT_BAUD; + mv64x60_mpsc_clk_src = EV64260_MPSC_CLK_SRC; + mv64x60_mpsc_clk_freq = EV64260_MPSC_CLK_FREQ; +#endif +} |