74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
#define pr_fmt(fmt) "Freescale MX28evk: " fmt
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#define DEBUG
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#include <common.h>
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#include <linux/sizes.h>
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#include <asm/barebox-arm-head.h>
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#include <asm/barebox-arm.h>
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#include <mach/imx28-regs.h>
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#include <mach/init.h>
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#include <io.h>
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#include <debug_ll.h>
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#include <mach/iomux.h>
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#include <stmp-device.h>
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extern char __dtb_imx28_duckbill_start[];
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ENTRY_FUNCTION(start_barebox_duckbill, r0, r1, r2)
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{
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void *fdt;
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pr_debug("here we are!\n");
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fdt = __dtb_imx28_duckbill_start - get_runtime_offset();
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barebox_arm_entry(IMX_MEMORY_BASE, SZ_128M, fdt);
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}
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static const uint32_t iomux_pads[] = {
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/* EMI */
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EMI_DATA0, EMI_DATA1, EMI_DATA2, EMI_DATA3, EMI_DATA4, EMI_DATA5,
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EMI_DATA6, EMI_DATA7, EMI_DATA8, EMI_DATA9, EMI_DATA10, EMI_DATA11,
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EMI_DATA12, EMI_DATA13, EMI_DATA14, EMI_DATA15, EMI_ODT0, EMI_DQM0,
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EMI_ODT1, EMI_DQM1, EMI_DDR_OPEN_FB, EMI_CLK, EMI_DSQ0, EMI_DSQ1,
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EMI_DDR_OPEN, EMI_A0, EMI_A1, EMI_A2, EMI_A3, EMI_A4, EMI_A5,
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EMI_A6, EMI_A7, EMI_A8, EMI_A9, EMI_A10, EMI_A11, EMI_A12, EMI_A13,
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EMI_A14, EMI_BA0, EMI_BA1, EMI_BA2, EMI_CASN, EMI_RASN, EMI_WEN,
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EMI_CE0N, EMI_CE1N, EMI_CKE,
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/* Debug UART */
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PWM0_DUART_RX | VE_3_3V,
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PWM1_DUART_TX | VE_3_3V,
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};
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static noinline void duckbill_init(void)
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{
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int i;
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/* initialize muxing */
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for (i = 0; i < ARRAY_SIZE(iomux_pads); i++)
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imx_gpio_mode(iomux_pads[i]);
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pr_debug("initializing power...\n");
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mx28_power_init(0, 0, 1);
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pr_debug("initializing SDRAM...\n");
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mx28_mem_init();
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pr_debug("DONE\n");
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}
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ENTRY_FUNCTION(prep_start_barebox_duckbill, r0, r1, r2)
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{
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void (*back)(unsigned long) = (void *)get_lr();
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relocate_to_current_adr();
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setup_c();
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duckbill_init();
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back(0);
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}
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