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author | Sascha Hauer <s.hauer@pengutronix.de> | 2017-02-13 09:26:04 +0100 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2017-02-13 09:26:04 +0100 |
commit | 30139163b75970fcd58df6b6b987883e36571046 (patch) | |
tree | 00bd354cefa617f8474cc73994b1a72c11e770a0 /arch/arm/boards/zii-imx6q-rdu2/lowlevel.c | |
parent | bb1a6a2fd3cc41be6db1a1362f311456019317b1 (diff) | |
parent | 19df384cec181be4407f82377ffbb3059b1ed748 (diff) | |
download | barebox-30139163b75970fcd58df6b6b987883e36571046.tar.gz barebox-30139163b75970fcd58df6b6b987883e36571046.tar.xz |
Merge branch 'for-next/imx'
Diffstat (limited to 'arch/arm/boards/zii-imx6q-rdu2/lowlevel.c')
-rw-r--r-- | arch/arm/boards/zii-imx6q-rdu2/lowlevel.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/arch/arm/boards/zii-imx6q-rdu2/lowlevel.c b/arch/arm/boards/zii-imx6q-rdu2/lowlevel.c new file mode 100644 index 0000000000..0d3520de47 --- /dev/null +++ b/arch/arm/boards/zii-imx6q-rdu2/lowlevel.c @@ -0,0 +1,66 @@ +/* + * Copyright (C) 2016 Zodiac Inflight Innovation + * Author: Andrey Smirnov <andrew.smirnov@gmail.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <debug_ll.h> +#include <common.h> +#include <mach/esdctl.h> +#include <mach/generic.h> +#include <mach/imx6.h> +#include <asm/barebox-arm.h> + +static inline void setup_uart(void) +{ + void __iomem *iomuxbase = IOMEM(MX6_IOMUXC_BASE_ADDR); + + imx6_ungate_all_peripherals(); + + writel(0x1b0b1, iomuxbase + 0x0650); + writel(3, iomuxbase + 0x0280); + + writel(0x1b0b1, iomuxbase + 0x0654); + writel(3, iomuxbase + 0x0284); + writel(1, iomuxbase + 0x0920); + + imx6_uart_setup_ll(); + + putc_ll('>'); +} + +extern char __dtb_imx6q_zii_rdu2_start[]; +extern char __dtb_imx6qp_zii_rdu2_start[]; + +ENTRY_FUNCTION(start_imx6q_zii_rdu2, r0, r1, r2) +{ + void *fdt = __dtb_imx6q_zii_rdu2_start; + + imx6_cpu_lowlevel_init(); + + if (IS_ENABLED(CONFIG_DEBUG_LL)) + setup_uart(); + + imx6q_barebox_entry(fdt - get_runtime_offset()); +} + +ENTRY_FUNCTION(start_imx6qp_zii_rdu2, r0, r1, r2) +{ + void *fdt = __dtb_imx6qp_zii_rdu2_start; + + imx6_cpu_lowlevel_init(); + + if (IS_ENABLED(CONFIG_DEBUG_LL)) + setup_uart(); + + imx6q_barebox_entry(fdt - get_runtime_offset()); +} |