diff options
Diffstat (limited to 'cpu/mcf52x2/cpu_init.c')
| -rw-r--r-- | cpu/mcf52x2/cpu_init.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/cpu/mcf52x2/cpu_init.c b/cpu/mcf52x2/cpu_init.c index 458b85e..207a37e 100644 --- a/cpu/mcf52x2/cpu_init.c +++ b/cpu/mcf52x2/cpu_init.c @@ -10,6 +10,9 @@ * TsiChung Liew (Tsi-Chung.Liew@freescale.com) * Hayden Fraser (Hayden.Fraser@freescale.com) * + * MCF5275 additions + * Copyright (C) 2008 Arthur Shipkowski (art@videon-central.com) + * * See file CREDITS for list of people who contributed to this * project. * @@ -245,6 +248,114 @@ void uart_port_conf(void) } #endif /* #if defined(CONFIG_M5272) */ +#if defined(CONFIG_M5275) + +/* + * Breathe some life into the CPU... + * + * Set up the memory map, + * initialize a bunch of registers, + * initialize the UPM's + */ +void cpu_init_f(void) +{ + /* if we come from RAM we assume the CPU is + * already initialized. + */ + +#ifndef CONFIG_MONITOR_IS_IN_RAM + volatile wdog_t *wdog_reg = (wdog_t *)(MMAP_WDOG); + volatile gpio_t *gpio_reg = (gpio_t *)(MMAP_GPIO); + volatile csctrl_t *csctrl_reg = (csctrl_t *)(MMAP_FBCS); + + /* Kill watchdog so we can initialize the PLL */ + wdog_reg->wcr = 0; + + /* Memory Controller: */ + /* Flash */ + csctrl_reg->ar0 = CFG_AR0_PRELIM; + csctrl_reg->cr0 = CFG_CR0_PRELIM; + csctrl_reg->mr0 = CFG_MR0_PRELIM; + +#if (defined(CFG_AR1_PRELIM) && defined(CFG_CR1_PRELIM) && defined(CFG_MR1_PRELIM)) + csctrl_reg->ar1 = CFG_AR1_PRELIM; + csctrl_reg->cr1 = CFG_CR1_PRELIM; + csctrl_reg->mr1 = CFG_MR1_PRELIM; +#endif + +#if (defined(CFG_AR2_PRELIM) && defined(CFG_CR2_PRELIM) && defined(CFG_MR2_PRELIM)) + csctrl_reg->ar2 = CFG_AR2_PRELIM; + csctrl_reg->cr2 = CFG_CR2_PRELIM; + csctrl_reg->mr2 = CFG_MR2_PRELIM; +#endif + +#if (defined(CFG_AR3_PRELIM) && defined(CFG_CR3_PRELIM) && defined(CFG_MR3_PRELIM)) + csctrl_reg->ar3 = CFG_AR3_PRELIM; + csctrl_reg->cr3 = CFG_CR3_PRELIM; + csctrl_reg->mr3 = CFG_MR3_PRELIM; +#endif + +#if (defined(CFG_AR4_PRELIM) && defined(CFG_CR4_PRELIM) && defined(CFG_MR4_PRELIM)) + csctrl_reg->ar4 = CFG_AR4_PRELIM; + csctrl_reg->cr4 = CFG_CR4_PRELIM; + csctrl_reg->mr4 = CFG_MR4_PRELIM; +#endif + +#if (defined(CFG_AR5_PRELIM) && defined(CFG_CR5_PRELIM) && defined(CFG_MR5_PRELIM)) + csctrl_reg->ar5 = CFG_AR5_PRELIM; + csctrl_reg->cr5 = CFG_CR5_PRELIM; + csctrl_reg->mr5 = CFG_MR5_PRELIM; +#endif + +#if (defined(CFG_AR6_PRELIM) && defined(CFG_CR6_PRELIM) && defined(CFG_MR6_PRELIM)) + csctrl_reg->ar6 = CFG_AR6_PRELIM; + csctrl_reg->cr6 = CFG_CR6_PRELIM; + csctrl_reg->mr6 = CFG_MR6_PRELIM; +#endif + +#if (defined(CFG_AR7_PRELIM) && defined(CFG_CR7_PRELIM) && defined(CFG_MR7_PRELIM)) + csctrl_reg->ar7 = CFG_AR7_PRELIM; + csctrl_reg->cr7 = CFG_CR7_PRELIM; + csctrl_reg->mr7 = CFG_MR7_PRELIM; +#endif + +#endif /* #ifndef CONFIG_MONITOR_IS_IN_RAM */ + +#ifdef CONFIG_FSL_I2C + gpio_reg->par_feci2c = 0x000F; +#endif + + /* enable instruction cache now */ + icache_enable(); +} + +/* + * initialize higher level parts of CPU like timers + */ +int cpu_init_r(void) +{ + return (0); +} + +void uart_port_conf(void) +{ + volatile gpio_t *gpio = (gpio_t *)MMAP_GPIO; + + /* Setup Ports: */ + switch (CFG_UART_PORT) { + case 0: + gpio->par_uart |= UART0_ENABLE_MASK; + break; + case 1: + gpio->par_uart |= UART1_ENABLE_MASK; + break; + case 2: + gpio->par_uart |= UART2_ENABLE_MASK; + break; + } +} +#endif /* #if defined(CONFIG_M5275) */ + #if defined(CONFIG_M5282) /* * Breath some life into the CPU... |