asmlinkage void __init sysinit(void)
{
sys_clk_khz = clock_pll(0, 0);
sys_clk_mhz = sys_clk_khz/1000;
wtm_init();
scm_init();
gpio_init();
fbcs_init();
sdramc_init();
}
void __initialize_hardware(void)
{
/*******************************************************
* Out of reset, the low-level assembly code calls this
* routine to initialize the MCF52233 modules for the
* M52233DEMO board.
********************************************************/
asm
{
/* Initialize IPSBAR */
move.l #__IPSBAR,d0
andi.l #0xC0000000,d0 // need to mask
add.l #0x1,d0
move.l d0,0x40000000
/* Initialize FLASHBAR */
move.l #__FLASHBAR,d0
andi.l #0xFFF80000,d0 // need to mask
add.l #0x61,d0
movec d0,FLASHBAR
}
/*
* Allow interrupts from ABORT, SW1, SW2, and SW3 (IRQ[1,4,7,11])
*/
/* Enable IRQ signals on the port */
MCF_GPIO_PNQPAR = 0
| MCF_GPIO_PNQPAR_IRQ1_IRQ1
| MCF_GPIO_PNQPAR_IRQ4_IRQ4
| MCF_GPIO_PNQPAR_IRQ7_IRQ7;
MCF_GPIO_PGPPAR = 0
| MCF_GPIO_PGPPAR_IRQ11_IRQ11;
/* Set EPORT to look for rising edges */
MCF_EPORT0_EPPAR = 0
| MCF_EPORT_EPPAR_EPPA1_RISING
| MCF_EPORT_EPPAR_EPPA4_RISING
| MCF_EPORT_EPPAR_EPPA7_RISING;
MCF_EPORT1_EPPAR = 0
| MCF_EPORT_EPPAR_EPPA11_RISING;
/* Clear any currently triggered events on the EPORT */
MCF_EPORT0_EPIER = 0
| MCF_EPORT_EPIER_EPIE1
| MCF_EPORT_EPIER_EPIE4
| MCF_EPORT_EPIER_EPIE7;
MCF_EPORT1_EPIER = 0
| MCF_EPORT_EPIER_EPIE11;
/* Enable interrupts in the interrupt controller */
MCF_INTC0_IMRL &= ~(0
| MCF_INTC_IMRL_INT_MASK1
| MCF_INTC_IMRL_INT_MASK4
| MCF_INTC_IMRL_INT_MASK7
| MCF_INTC_IMRL_MASKALL);
MCF_INTC1_IMRH &= ~(0
| MCF_INTC_IMRH_INT_MASK35);
MCF_INTC1_ICR35 = MCF_INTC_ICR_IL(4);
MCF_GPIO_PDDPAR = 0x0F;
/* Set real time clock freq */
MCF_CLOCK_RTCDR = 25000000;
/* Set GPIO for UART0 */
MCF_GPIO_PUAPAR = 0
| MCF_GPIO_PUAPAR_URXD0_URXD0
| MCF_GPIO_PUAPAR_UTXD0_UTXD0;
wtm_init();
pll_init();
scm_init();
initialize_exceptions();
}
