66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
#include <common.h>
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#include <debug_ll.h>
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#include <io.h>
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#include <mach/esdctl.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/imx5.h>
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extern char __dtb_imx53_mba53_start[];
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static inline void setup_uart(void __iomem *base)
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{
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/* Enable UART for lowlevel debugging purposes */
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writel(0x00000000, base + 0x80);
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writel(0x00004027, base + 0x84);
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writel(0x00000704, base + 0x88);
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writel(0x00000a81, base + 0x90);
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writel(0x0000002b, base + 0x9c);
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writel(0x0001046a, base + 0xb0);
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writel(0x0000047f, base + 0xa4);
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writel(0x0000a2c1, base + 0xa8);
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writel(0x00000001, base + 0x80);
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}
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static void __noreturn start_imx53_tqma53_common(void *fdt)
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{
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if (IS_ENABLED(CONFIG_DEBUG_LL)) {
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writel(0x3, MX53_IOMUXC_BASE_ADDR + 0x278);
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writel(0x3, MX53_IOMUXC_BASE_ADDR + 0x27c);
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setup_uart((void *)MX53_UART2_BASE_ADDR);
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putc_ll('>');
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}
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imx53_barebox_entry(fdt);
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}
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ENTRY_FUNCTION(start_imx53_mba53_512mib, r0, r1, r2)
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{
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void *fdt;
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arm_cpu_lowlevel_init();
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arm_setup_stack(0xf8020000 - 8);
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imx53_init_lowlevel_early(800);
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fdt = __dtb_imx53_mba53_start - get_runtime_offset();
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start_imx53_tqma53_common(fdt);
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}
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ENTRY_FUNCTION(start_imx53_mba53_1gib, r0, r1, r2)
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{
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void *fdt;
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arm_cpu_lowlevel_init();
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arm_setup_stack(0xf8020000 - 8);
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imx53_init_lowlevel_early(800);
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fdt = __dtb_imx53_mba53_start - get_runtime_offset();
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start_imx53_tqma53_common(fdt);
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}
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