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author | Fabio Estevam <fabio.estevam@freescale.com> | 2013-04-10 09:32:58 +0000 |
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committer | Stefano Babic <sbabic@denx.de> | 2013-04-22 09:58:19 +0200 |
commit | 57ca432fb9f59cea48d8cde1dc1d5cc2f80993c7 (patch) | |
tree | c47ffb80d0befa69399f651cdcf513a6538bdf06 /board/freescale/mx6slevk/mx6slevk.c | |
parent | 25b4aa146a3056aa3b42fa9e1682e027b9596eca (diff) | |
download | u-boot-imx-57ca432fb9f59cea48d8cde1dc1d5cc2f80993c7.zip u-boot-imx-57ca432fb9f59cea48d8cde1dc1d5cc2f80993c7.tar.gz u-boot-imx-57ca432fb9f59cea48d8cde1dc1d5cc2f80993c7.tar.bz2 |
mx6sl: Add initial support for mx6slevk board
mx6slevk board is a development board from Freescale based on the mx6 solo-lite
processor.
For details about mx6slevk, please refer to:
http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=IMX6SLEVK&parentCode=i.MX6SL&fpsp=1
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Diffstat (limited to 'board/freescale/mx6slevk/mx6slevk.c')
-rw-r--r-- | board/freescale/mx6slevk/mx6slevk.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/board/freescale/mx6slevk/mx6slevk.c b/board/freescale/mx6slevk/mx6slevk.c new file mode 100644 index 0000000..fc6353e --- /dev/null +++ b/board/freescale/mx6slevk/mx6slevk.c @@ -0,0 +1,102 @@ +/* + * Copyright (C) 2013 Freescale Semiconductor, Inc. + * + * Author: Fabio Estevam <fabio.estevam@freescale.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. + */ + +#include <asm/arch/clock.h> +#include <asm/arch/iomux.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/mx6-pins.h> +#include <asm/arch/sys_proto.h> +#include <asm/gpio.h> +#include <asm/imx-common/iomux-v3.h> +#include <asm/io.h> +#include <asm/sizes.h> +#include <common.h> +#include <fsl_esdhc.h> +#include <mmc.h> + +DECLARE_GLOBAL_DATA_PTR; + +#define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ + PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ + PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) + +#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ + PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \ + PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) + +int dram_init(void) +{ + gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE); + + return 0; +} + +static iomux_v3_cfg_t const uart1_pads[] = { + MX6_PAD_UART1_TXD__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL), + MX6_PAD_UART1_RXD__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL), +}; + +static iomux_v3_cfg_t const usdhc2_pads[] = { + MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD2_DAT0__USDHC2_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD2_DAT1__USDHC2_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD2_DAT2__USDHC2_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD2_DAT3__USDHC2_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), +}; + +static void setup_iomux_uart(void) +{ + imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); +} + +static struct fsl_esdhc_cfg usdhc_cfg[1] = { + {USDHC2_BASE_ADDR}, +}; + +int board_mmc_getcd(struct mmc *mmc) +{ + return 1; /* Assume boot SD always present */ +} + +int board_mmc_init(bd_t *bis) +{ + imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads)); + + usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); + return fsl_esdhc_initialize(bis, &usdhc_cfg[0]); +} + +int board_early_init_f(void) +{ + setup_iomux_uart(); + return 0; +} + +int board_init(void) +{ + /* address of boot parameters */ + gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; + + return 0; +} + +u32 get_board_rev(void) +{ + return get_cpu_rev(); +} + +int checkboard(void) +{ + puts("Board: MX6SLEVK\n"); + + return 0; +} |