[U-Boot] [PATCH 2/2] armv7: add support for s5pc210 universal board

Minkyu Kang promsoft at gmail.com
Thu Jan 13 11:12:05 CET 2011


On 10 January 2011 20:59, Minkyu Kang <mk7.kang at samsung.com> wrote:
> This patch adds support for Samsung s5pc210 universal board
>
> Signed-off-by: Minkyu Kang <mk7.kang at samsung.com>
> Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
> ---
>  MAINTAINERS                                  |    5 +-
>  MAKEALL                                      |    1 +
>  board/samsung/universal_c210/Makefile        |   51 ++++
>  board/samsung/universal_c210/config.mk       |   24 ++
>  board/samsung/universal_c210/lowlevel_init.S |  395 ++++++++++++++++++++++++++
>  board/samsung/universal_c210/onenand.c       |   34 +++
>  board/samsung/universal_c210/universal.c     |  251 ++++++++++++++++
>  boards.cfg                                   |    1 +
>  include/configs/s5pc210_universal.h          |  248 ++++++++++++++++
>  9 files changed, 1008 insertions(+), 2 deletions(-)
>  create mode 100644 board/samsung/universal_c210/Makefile
>  create mode 100644 board/samsung/universal_c210/config.mk
>  create mode 100644 board/samsung/universal_c210/lowlevel_init.S
>  create mode 100644 board/samsung/universal_c210/onenand.c
>  create mode 100644 board/samsung/universal_c210/universal.c
>  create mode 100644 include/configs/s5pc210_universal.h
>

> diff --git a/board/samsung/universal_c210/universal.c b/board/samsung/universal_c210/universal.c
> new file mode 100644
> index 0000000..a0325c3
> --- /dev/null
> +++ b/board/samsung/universal_c210/universal.c
> @@ -0,0 +1,251 @@
> +/*
> + *  Copyright (C) 2010 Samsung Electronics
> + *  Minkyu Kang <mk7.kang at samsung.com>
> + *  Kyungmin Park <kyungmin.park at samsung.com>
> + *
> + * See file CREDITS for list of people who contributed to this
> + * project.
> + *
> + * 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.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
> + * MA 02111-1307 USA
> + */
> +
> +#include <common.h>
> +#include <asm/io.h>
> +#include <asm/arch/adc.h>
> +#include <asm/arch/gpio.h>
> +#include <asm/arch/mmc.h>
> +
> +DECLARE_GLOBAL_DATA_PTR;
> +
> +struct s5pc210_gpio_part1 *gpio1;
> +struct s5pc210_gpio_part2 *gpio2;
> +unsigned int board_rev;
> +
> +u32 get_board_rev(void)
> +{
> +       return board_rev;
> +}
> +
> +static int get_hwrev(void)
> +{
> +       return board_rev & 0xFF;
> +}
> +
> +static void check_hw_revision(void);
> +
> +int board_init(void)
> +{
> +       gpio1 = (struct s5pc210_gpio_part1 *) S5PC210_GPIO_PART1_BASE;
> +       gpio2 = (struct s5pc210_gpio_part2 *) S5PC210_GPIO_PART2_BASE;
> +
> +       gd->bd->bi_arch_number = MACH_TYPE_UNIVERSAL_C210;
> +       gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
> +
> +       check_hw_revision();
> +       printf("HW Revision:\t0x%x\n", board_rev);
> +
> +       return 0;
> +}
> +
> +int dram_init(void)
> +{
> +       gd->ram_size = PHYS_SDRAM_1_SIZE + PHYS_SDRAM_2_SIZE;
> +       return 0;
> +}
> +
> +void dram_init_banksize(void)
> +{
> +       gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
> +       gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
> +       gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
> +       gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
> +
> +       gd->ram_size = gd->bd->bi_dram[0].size + gd->bd->bi_dram[1].size;
> +}
> +
> +static unsigned short get_adc_value(int channel)
> +{
> +       struct s5p_adc *adc = (struct s5p_adc *)samsung_get_base_adc();
> +       unsigned short ret = 0;
> +       unsigned int reg;
> +       unsigned int loop = 0;
> +
> +       writel(channel & 0xF, &adc->adcmux);
> +       writel((1 << 14) | (49 << 6), &adc->adccon);
> +       writel(1000 & 0xffff, &adc->adcdly);
> +       writel(readl(&adc->adccon) | (1 << 16), &adc->adccon); /* 12 bit */
> +       udelay(10);
> +       writel(readl(&adc->adccon) | (1 << 0), &adc->adccon); /* Enable */
> +       udelay(10);
> +
> +       do {
> +               udelay(1);
> +               reg = readl(&adc->adccon);
> +       } while (!(reg & (1 << 15)) && (loop++ < 1000));
> +
> +       ret = readl(&adc->adcdat0) & 0xFFF;
> +
> +       return ret;
> +}
> +
> +static unsigned int get_hw_revision(void)
> +{
> +       int hwrev, mode0, mode1;
> +
> +       mode0 = get_adc_value(1);               /* HWREV_MODE0 */
> +       mode1 = get_adc_value(2);               /* HWREV_MODE1 */
> +
> +       /*
> +        * XXX Always set the default hwrev as the latest board
> +        * ADC = (voltage) / 3.3 * 4096
> +        */
> +       hwrev = 3;
> +
> +#define IS_RANGE(x, min, max)  ((x) > (min) && (x) < (max))
> +       if (IS_RANGE(mode0, 80, 200) && IS_RANGE(mode1, 80, 200))
> +               hwrev = 0x0;            /* 0.01V        0.01V */
> +       if (IS_RANGE(mode0, 750, 1000) && IS_RANGE(mode1, 80, 200))
> +               hwrev = 0x1;            /* 610mV        0.01V */
> +       if (IS_RANGE(mode0, 1300, 1700) && IS_RANGE(mode1, 80, 200))
> +               hwrev = 0x2;            /* 1.16V        0.01V */
> +       if (IS_RANGE(mode0, 2000, 2400) && IS_RANGE(mode1, 80, 200))
> +               hwrev = 0x3;            /* 1.79V        0.01V */
> +#undef IS_RANGE
> +
> +       debug("mode0: %d, mode1: %d, hwrev 0x%x\n", mode0, mode1, hwrev);
> +       printf("mode0: %d, mode1: %d, hwrev 0x%x\n", mode0, mode1, hwrev);

This is duplicated debug message.
I will remove it.

> +
> +       return hwrev;
> +}
> +
> +static void check_hw_revision(void)
> +{
> +       int hwrev;
> +
> +       hwrev = get_hw_revision();
> +
> +       board_rev |= hwrev;
> +}
> +
> +#ifdef CONFIG_DISPLAY_BOARDINFO
> +int checkboard(void)
> +{
> +       puts("Board:\tUniversal C210\n");
> +       return 0;
> +}
> +#endif
> +
> +#ifdef CONFIG_GENERIC_MMC
> +int board_mmc_init(bd_t *bis)
> +{
> +       int i, err;
> +
> +       switch (get_hwrev()) {
> +       case 0:
> +               /*
> +                * Set the low to enable LDO_EN
> +                * But when you use the test board for eMMC booting
> +                * you should set it HIGH since it removes the inverter
> +                */
> +               /* MASSMEMORY_EN: XMDMDATA_6: GPE3[6] */
> +               gpio_direction_output(&gpio1->e3, 6, 0);
> +               break;
> +       default:
> +               /*
> +                * Default reset state is High and there's no inverter
> +                * But set it as HIGH to ensure
> +                */
> +               /* MASSMEMORY_EN: XMDMADDR_3: GPE1[3] */
> +               gpio_direction_output(&gpio1->e1, 3, 1);
> +               break;
> +       }
> +
> +       /*
> +        * eMMC GPIO:
> +        * SDR 8-bit at 48MHz at MMC0
> +        * GPK0[0]      SD_0_CLK(2)
> +        * GPK0[1]      SD_0_CMD(2)
> +        * GPK0[2]      SD_0_CDn        -> Not used
> +        * GPK0[3:6]    SD_0_DATA[0:3](2)
> +        * GPK1[3:6]    SD_0_DATA[0:3](3)
> +        *
> +        * DDR 4-bit at 26MHz at MMC4
> +        * GPK0[0]      SD_4_CLK(3)
> +        * GPK0[1]      SD_4_CMD(3)
> +        * GPK0[2]      SD_4_CDn        -> Not used
> +        * GPK0[3:6]    SD_4_DATA[0:3](3)
> +        * GPK1[3:6]    SD_4_DATA[4:7](4)
> +        */
> +       for (i = 0; i < 7; i++) {
> +               if (i == 2)
> +                       continue;
> +               /* GPK0[0:6] special function 2 */
> +               gpio_cfg_pin(&gpio2->k0, i, 0x2);
> +               /* GPK0[0:6] pull disable */
> +               gpio_set_pull(&gpio2->k0, i, GPIO_PULL_NONE);
> +               /* GPK0[0:6] drv 4x */
> +               gpio_set_drv(&gpio2->k0, i, GPIO_DRV_4X);
> +       }
> +
> +       for (i = 3; i < 7; i++) {
> +               /* GPK1[3:6] special function 3 */
> +               gpio_cfg_pin(&gpio2->k1, i, 0x3);
> +               /* GPK1[3:6] pull disable */
> +               gpio_set_pull(&gpio2->k1, i, GPIO_PULL_NONE);
> +               /* GPK1[3:6] drv 4x */
> +               gpio_set_drv(&gpio2->k1, i, GPIO_DRV_4X);
> +       }
> +
> +       /* T-flash detect */
> +       gpio_cfg_pin(&gpio2->x3, 4, 0xf);
> +       gpio_set_pull(&gpio2->x3, 4, GPIO_PULL_UP);
> +
> +       /*
> +        * MMC device init
> +        * mmc0  : eMMC (8-bit buswidth)
> +        * mmc2  : SD card (4-bit buswidth)
> +        */
> +       err = s5p_mmc_init(0, 8);
> +
> +       /*
> +        * Check the T-flash  detect pin
> +        * GPX3[4] T-flash detect pin
> +        */
> +       if (!gpio_get_value(&gpio2->x3, 4)) {
> +               /*
> +                * SD card GPIO:
> +                * GPK2[0]      SD_2_CLK(2)
> +                * GPK2[1]      SD_2_CMD(2)
> +                * GPK2[2]      SD_2_CDn        -> Not used
> +                * GPK2[3:6]    SD_2_DATA[0:3](2)
> +                */
> +               for (i = 0; i < 7; i++) {
> +                       if (i == 2)
> +                               continue;
> +                       /* GPK2[0:6] special function 2 */
> +                       gpio_cfg_pin(&gpio2->k2, i, 0x2);
> +                       /* GPK2[0:6] pull disable */
> +                       gpio_set_pull(&gpio2->k2, i, GPIO_PULL_NONE);
> +                       /* GPK2[0:6] drv 4x */
> +                       gpio_set_drv(&gpio2->k2, i, GPIO_DRV_4X);
> +               }
> +               err = s5p_mmc_init(2, 4);
> +       }
> +
> +       return err;
> +
> +}
> +#endif


-- 
from. prom.
www.promsoft.net


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