diff options
Diffstat (limited to 'arch/arm/boards/ccxmx51/lowlevel.c')
| -rw-r--r-- | arch/arm/boards/ccxmx51/lowlevel.c | 47 |
1 files changed, 43 insertions, 4 deletions
diff --git a/arch/arm/boards/ccxmx51/lowlevel.c b/arch/arm/boards/ccxmx51/lowlevel.c index adcb30a7ff..b0881f9c5b 100644 --- a/arch/arm/boards/ccxmx51/lowlevel.c +++ b/arch/arm/boards/ccxmx51/lowlevel.c @@ -2,22 +2,61 @@ /* Author: Alexander Shiyan <shc_work@mail.ru> */ #include <common.h> -#include <mach/esdctl.h> -#include <mach/generic.h> +#include <debug_ll.h> +#include <mach/imx/debug_ll.h> +#include <mach/imx/clock-imx51_53.h> +#include <mach/imx/esdctl.h> +#include <mach/imx/generic.h> +#include <mach/imx/iomux-mx51.h> #include <asm/barebox-arm.h> #include <asm/barebox-arm-head.h> -#include <mach/imx51-regs.h> +#include <mach/imx/imx51-regs.h> -ENTRY_FUNCTION(start_ccxmx51, r0, r1, r2) +static inline void setup_uart(void) +{ + void __iomem *iomuxbase = IOMEM(MX51_IOMUXC_BASE_ADDR); + void __iomem *ccmbase = IOMEM(MX51_CCM_BASE_ADDR); + + /* + * Restore CCM values that might be changed by the Mask ROM + * code. + * + * Source: RealView debug scripts provided by Freescale + */ + writel(MX5_CCM_CBCDR_RESET_VALUE, ccmbase + MX5_CCM_CBCDR); + writel(MX5_CCM_CSCMR1_RESET_VALUE, ccmbase + MX5_CCM_CSCMR1); + writel(MX5_CCM_CSCDR1_RESET_VALUE, ccmbase + MX5_CCM_CSCDR1); + + imx_setup_pad(iomuxbase, MX51_PAD_UART1_TXD__UART1_TXD); + + imx51_uart_setup_ll(); + + putc_ll('>'); +} + +static inline void start_ccxmx51(void) { extern char __dtb_imx51_ccxmx51_start[]; void *fdt; imx5_cpu_lowlevel_init(); + if (IS_ENABLED(CONFIG_DEBUG_LL)) + setup_uart(); + arm_setup_stack(0x20000000); fdt = __dtb_imx51_ccxmx51_start + get_runtime_offset(); barebox_arm_entry(MX51_CSD0_BASE_ADDR, SZ_128M, fdt); } + +ENTRY_FUNCTION(start_ccxmx51_x16, r0, r1, r2) +{ + start_ccxmx51(); +} + +ENTRY_FUNCTION(start_ccxmx51_x32, r0, r1, r2) +{ + start_ccxmx51(); +} |