diff options
Diffstat (limited to 'firmware/target/arm/imx233/system-imx233.c')
| -rw-r--r-- | firmware/target/arm/imx233/system-imx233.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/firmware/target/arm/imx233/system-imx233.c b/firmware/target/arm/imx233/system-imx233.c index 58f12506df..c4a32dd46e 100644 --- a/firmware/target/arm/imx233/system-imx233.c +++ b/firmware/target/arm/imx233/system-imx233.c @@ -141,6 +141,25 @@ void imx233_softirq(int src, bool enable) __REG_CLR(HW_ICOLL_INTERRUPT(src)) = HW_ICOLL_INTERRUPT__SOFTIRQ; } +static void set_page_tables(void) +{ + /* map every memory region to itself */ + map_section(0, 0, 0x1000, CACHE_NONE); + + /* map RAM and enable caching for it */ + map_section(DRAM_ORIG, DRAM_ORIG, MEMORYSIZE, CACHE_ALL); + + /* enable buffered writing for the framebuffer */ + map_section((int)FRAME, (int)FRAME, 1, BUFFERED); +} + +void memory_init(void) +{ + ttb_init(); + set_page_tables(); + enable_mmu(); +} + void system_init(void) { /* disable all interrupts */ @@ -158,14 +177,6 @@ void system_init(void) imx233_timrot_init(); imx233_dma_init(); imx233_ssp_init(); - imx233_i2c_init(); -} - -void power_off(void) -{ - /* power down */ - HW_POWER_RESET = HW_POWER_RESET__UNLOCK | HW_POWER_RESET__PWD; - while(1); } bool imx233_us_elapsed(uint32_t ref, unsigned us_delay) |