diff options
Diffstat (limited to 'arch/arm/boards/element14-warp7/lowlevel.c')
-rw-r--r-- | arch/arm/boards/element14-warp7/lowlevel.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/arm/boards/element14-warp7/lowlevel.c b/arch/arm/boards/element14-warp7/lowlevel.c new file mode 100644 index 0000000000..38b7745f64 --- /dev/null +++ b/arch/arm/boards/element14-warp7/lowlevel.c @@ -0,0 +1,48 @@ +#define DEBUG +#include <io.h> +#include <common.h> +#include <linux/sizes.h> +#include <mach/generic.h> +#include <asm/barebox-arm-head.h> +#include <asm/barebox-arm.h> +#include <mach/debug_ll.h> +#include <asm/cache.h> + +extern char __dtb_imx7s_warp_start[]; + +static noinline void warp7_start(void) +{ + void __iomem *iomuxbase = IOMEM(MX7_IOMUXC_BASE_ADDR); + void __iomem *uart = IOMEM(MX7_UART1_BASE_ADDR); + void __iomem *ccmbase = IOMEM(MX7_CCM_BASE_ADDR); + void *fdt; + + writel(0x3, ccmbase + 0x4000 + 16 * 148 + 0x8); + writel(0x10000000, ccmbase + 0x8000 + 128 * 95); + writel(0x3, ccmbase + 0x4000 + 16 * 148 + 0x4); + writel(0x0, iomuxbase + 0x128); + writel(0x0, iomuxbase + 0x12c); + + imx7_uart_setup(uart); + + pbl_set_putc(imx_uart_putc, uart); + + pr_debug("Element14 i.MX7 Warp\n"); + + fdt = __dtb_imx7s_warp_start - get_runtime_offset(); + + barebox_arm_entry(0x80000000, SZ_512M, fdt); +} + +ENTRY_FUNCTION(start_imx7s_element14_warp7, r0, r1, r2) +{ + imx7_cpu_lowlevel_init(); + + arm_early_mmu_cache_invalidate(); + + relocate_to_current_adr(); + setup_c(); + barrier(); + + warp7_start(); +}
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