void __init davinci_map_common_io(void)
{
iotable_init(davinci_io_desc, ARRAY_SIZE(davinci_io_desc));
/* We want to check CPU revision early for cpu_is_davinci_xxxx() macros.
* IO space mapping must be initialized before we can do that.
*/
davinci_check_revision();
if (cpu_is_davinci_dm644x()) {
iotable_init(dm644x_io_desc, ARRAY_SIZE(dm644x_io_desc));
} else if (cpu_is_davinci_dm6467()) {
davinci_cpu_index = DM6467_CPU_IDX;
iotable_init(dm646x_io_desc, ARRAY_SIZE(dm646x_io_desc));
} else if (cpu_is_davinci_dm355()) {
davinci_cpu_index = DM355_CPU_IDX;
}
/* Normally devicemaps_init() would flush caches and tlb after
* mdesc->map_io(), but we must also do it here because of the CPU
* revision check below.
*/
flush_tlb_all();
flush_cache_all();
davinci_mux_init();
davinci_clk_init();
}
void __init davinci_common_init(struct davinci_soc_info *soc_info)
{
int ret;
if (!soc_info) {
ret = -EINVAL;
goto err;
}
memcpy(&davinci_soc_info, soc_info, sizeof(struct davinci_soc_info));
if (davinci_soc_info.io_desc && (davinci_soc_info.io_desc_num > 0))
iotable_init(davinci_soc_info.io_desc,
davinci_soc_info.io_desc_num);
init_consistent_dma_size(14 << 20);
/*
* Normally devicemaps_init() would flush caches and tlb after
* mdesc->map_io(), but we must also do it here because of the CPU
* revision check below.
*/
local_flush_tlb_all();
flush_cache_all();
if (!davinci_soc_info.reset)
davinci_soc_info.reset = davinci_watchdog_reset;
/*
* We want to check CPU revision early for cpu_is_xxxx() macros.
* IO space mapping must be initialized before we can do that.
*/
ret = davinci_init_id(&davinci_soc_info);
if (ret < 0)
goto err;
if (davinci_soc_info.cpu_clks) {
ret = davinci_clk_init(davinci_soc_info.cpu_clks);
if (ret != 0)
goto err;
}
return;
err:
panic("davinci_common_init: SoC Initialization failed\n");
}
void __init davinci_common_init(struct davinci_soc_info *soc_info)
{
int ret;
struct davinci_id *dip;
if (!soc_info) {
ret = -EINVAL;
goto err;
}
memcpy(&davinci_soc_info, soc_info, sizeof(struct davinci_soc_info));
if (davinci_soc_info.io_desc && (davinci_soc_info.io_desc_num > 0))
iotable_init(davinci_soc_info.io_desc,
davinci_soc_info.io_desc_num);
local_flush_tlb_all();
flush_cache_all();
davinci_soc_info.jtag_id = __raw_readl(davinci_soc_info.jtag_id_base);
dip = davinci_get_id(davinci_soc_info.jtag_id);
if (!dip) {
ret = -EINVAL;
goto err;
}
davinci_soc_info.cpu_id = dip->cpu_id;
pr_info("DaVinci %s variant 0x%x\n", dip->name, dip->variant);
if (davinci_soc_info.cpu_clks) {
ret = davinci_clk_init(davinci_soc_info.cpu_clks);
if (ret != 0)
goto err;
}
davinci_intc_base = davinci_soc_info.intc_base;
davinci_intc_type = davinci_soc_info.intc_type;
return;
err:
pr_err("davinci_common_init: SoC Initialization failed\n");
}
/**
* This function will init dm365 board
*/
void rt_hw_board_init()
{
psc_change_state(DAVINCI_DM365_LPSC_TIMER0, 3);
psc_change_state(DAVINCI_DM365_LPSC_TIMER1, 3);
/* initialize the system clock */
//rt_hw_clock_init();
davinci_clk_init();
/* initialize uart */
rt_hw_uart_init();
#ifdef RT_USING_CONSOLE
rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
#endif
/* initialize mmu */
rt_hw_mmu_init(dm365_mem_desc, sizeof(dm365_mem_desc)/sizeof(dm365_mem_desc[0]));
/* initialize timer0 */
rt_hw_timer_init();
}
void __init dm644x_init(void)
{
davinci_common_init(&davinci_soc_info_dm644x);
davinci_map_sysmod();
davinci_clk_init(davinci_soc_info_dm644x.cpu_clks);
}
void __init davinci_init_common_hw(void)
{
davinci_mux_init();
davinci_clk_init();
}