void __init mach_early_init (void)
{
#ifndef CONFIG_ROM_KERNEL
const u32 *src;
register u32 *dst asm ("ep");
#endif
AS85EP1_CSC(0) = 0x0403;
AS85EP1_BCT(0) = 0xB8B8;
AS85EP1_DWC(0) = 0x0104;
AS85EP1_BCC = 0x0012;
AS85EP1_ASC = 0;
AS85EP1_LBS = 0x00A9;
AS85EP1_PORT_PMC(6) = 0xFF; /* valid A0,A1,A20-A25 */
AS85EP1_PORT_PMC(7) = 0x0E; /* valid CS1-CS3 */
AS85EP1_PORT_PMC(9) = 0xFF; /* valid D16-D23 */
AS85EP1_PORT_PMC(10) = 0xFF; /* valid D24-D31 */
AS85EP1_RFS(1) = 0x800c;
AS85EP1_RFS(3) = 0x800c;
AS85EP1_SCR(1) = 0x20A9;
AS85EP1_SCR(3) = 0x20A9;
#ifndef CONFIG_ROM_KERNEL
/* The early chip we have is buggy, and writing the interrupt
vectors into low RAM may screw up, so for non-ROM kernels, we
only rely on the reset vector being downloaded, and copy the
rest of the interrupt vectors into place here. The specific bug
is that writing address N, where (N & 0x10) == 0x10, will _also_
write to address (N - 0x10). We avoid this (effectively) by
writing in 16-byte chunks backwards from the end. */
AS85EP1_IRAMM = 0x3; /* "write-mode" for the internal instruction memory */
src = (u32 *)(((u32)&_intv_copy_src_end - 1) & ~0xF);
dst = (u32 *)&_intv_copy_dst_start
+ (src - (u32 *)&_intv_copy_src_start);
do {
u32 t0 = src[0], t1 = src[1], t2 = src[2], t3 = src[3];
dst[0] = t0;
dst[1] = t1;
dst[2] = t2;
dst[3] = t3;
dst -= 4;
src -= 4;
} while (src > (u32 *)&_intv_copy_src_start);
AS85EP1_IRAMM = 0x0; /* "read-mode" for the internal instruction memory */
#endif /* !CONFIG_ROM_KERNEL */
v850e_intc_disable_irqs ();
}
/* Called before configuring an on-chip UART. */
void as85ep1_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud)
{
/* Make the shared uart/port pins be uart pins. */
AS85EP1_PORT_PMC(3) |= (0x5 << chan);
/* The AS85EP1 connects some general-purpose I/O pins on the CPU to
the RTS/CTS lines of UART 1's serial connection. I/O pins P53
and P54 are RTS and CTS respectively. */
if (chan == 1) {
/* Put P53 & P54 in I/O port mode. */
AS85EP1_PORT_PMC(5) &= ~0x18;
/* Make P53 an output, and P54 an input. */
AS85EP1_PORT_PM(5) |= 0x10;
}
}
void __init mach_setup (char **cmdline)
{
AS85EP1_PORT_PMC (LEDS_PORT) = 0; /* Make the LEDs port an I/O port. */
AS85EP1_PORT_PM (LEDS_PORT) = 0; /* Make all the bits output pins. */
mach_tick = as85ep1_led_tick;
}