On 10 January 2011 20:59, Minkyu Kang <mk7.k...@samsung.com> wrote: > This patch adds support for Samsung s5pc210 universal board > > Signed-off-by: Minkyu Kang <mk7.k...@samsung.com> > Signed-off-by: Kyungmin Park <kyungmin.p...@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.k...@samsung.com> > + * Kyungmin Park <kyungmin.p...@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@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@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 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot