diff options
author | Minkyu Kang <mk7.kang@samsung.com> | 2011-01-24 06:33:50 (GMT) |
---|---|---|
committer | Albert Aribaud <albert.aribaud@free.fr> | 2011-02-01 23:54:45 (GMT) |
commit | 9e40808c3fe0237a8d49f10394d3a8e4e29540a6 (patch) | |
tree | 0ae51893b24862fd0d2ec32712b2bb963eefed08 /board/samsung/universal_c210 | |
parent | 008a351a8a6b6dda8cd6d6d5813a44bdd4a455df (diff) | |
download | u-boot-9e40808c3fe0237a8d49f10394d3a8e4e29540a6.tar.xz |
armv7: add support for s5pc210 universal board
This patch adds support for Samsung s5pc210 universal board
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Diffstat (limited to 'board/samsung/universal_c210')
-rw-r--r-- | board/samsung/universal_c210/Makefile | 51 | ||||
-rw-r--r-- | board/samsung/universal_c210/lowlevel_init.S | 395 | ||||
-rw-r--r-- | board/samsung/universal_c210/onenand.c | 34 | ||||
-rw-r--r-- | board/samsung/universal_c210/universal.c | 250 |
4 files changed, 730 insertions, 0 deletions
diff --git a/board/samsung/universal_c210/Makefile b/board/samsung/universal_c210/Makefile new file mode 100644 index 0000000..0200220 --- /dev/null +++ b/board/samsung/universal_c210/Makefile @@ -0,0 +1,51 @@ +# +# Copyright (C) 2010 Samsung Electronics +# Minkyu Kang <mk7.kang@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 $(TOPDIR)/config.mk + +LIB = $(obj)lib$(BOARD).o + +COBJS-y := universal.o onenand.o +SOBJS := lowlevel_init.o + +SRCS := $(SOBJS:.o=.S) $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS-y)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(obj).depend $(SOBJS) $(OBJS) + $(call cmd_link_o_target, $(SOBJS) $(OBJS)) + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak $(obj).depend + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/board/samsung/universal_c210/lowlevel_init.S b/board/samsung/universal_c210/lowlevel_init.S new file mode 100644 index 0000000..67635bb --- /dev/null +++ b/board/samsung/universal_c210/lowlevel_init.S @@ -0,0 +1,395 @@ +/* + * Lowlevel setup for universal board based on S5PC210 + * + * Copyright (C) 2010 Samsung Electronics + * Kyungmin Park <kyungmin.park@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 <config.h> +#include <version.h> +#include <asm/arch/cpu.h> +#include <asm/arch/clock.h> + +/* + * Register usages: + * + * r5 has zero always + * r7 has GPIO part1 base 0x11400000 + * r6 has GPIO part2 base 0x11000000 + */ + + .globl lowlevel_init +lowlevel_init: + mov r11, lr + + /* r5 has always zero */ + mov r5, #0 + + ldr r7, =S5PC210_GPIO_PART1_BASE + ldr r6, =S5PC210_GPIO_PART2_BASE + + /* System Timer */ + ldr r0, =S5PC210_SYSTIMER_BASE + ldr r1, =0x5000 + str r1, [r0, #0x0] + ldr r1, =0xffffffff + str r1, [r0, #0x8] + ldr r1, =0x49 + str r1, [r0, #0x4] + + /* PMIC manual reset */ + /* nPOWER: XEINT_23: GPX2[7] */ + add r0, r6, #0xC40 @ S5PC210_GPIO_X2_OFFSET + ldr r1, [r0, #0x0] + bic r1, r1, #(0xf << 28) @ 28 = 7 * 4-bit + orr r1, r1, #(0x1 << 28) @ Output + str r1, [r0, #0x0] + + ldr r1, [r0, #0x4] + orr r1, r1, #(1 << 7) @ 7 = 7 * 1-bit + str r1, [r0, #0x4] + + /* init system clock */ + bl system_clock_init + + /* Disable Watchdog */ + ldr r0, =S5PC210_WATCHDOG_BASE @0x10060000 + str r5, [r0] + + /* UART */ + bl uart_asm_init + + /* PMU init */ + bl system_power_init + + bl tzpc_init + + mov lr, r11 + mov pc, lr + nop + nop + nop + +/* + * uart_asm_init: Initialize UART's pins + */ +uart_asm_init: + /* + * setup UART0-UART4 GPIOs (part1) + * GPA1CON[3] = I2C_3_SCL (3) + * GPA1CON[2] = I2C_3_SDA (3) + */ + mov r0, r7 + ldr r1, =0x22222222 + str r1, [r0, #0x00] @ S5PC210_GPIO_A0_OFFSET + ldr r1, =0x00223322 + str r1, [r0, #0x20] @ S5PC210_GPIO_A1_OFFSET + + /* UART_SEL GPY4[7] (part2) at S5PC210 */ + add r0, r6, #0x1A0 @ S5PC210_GPIO_Y4_OFFSET + ldr r1, [r0, #0x0] + bic r1, r1, #(0xf << 28) @ 28 = 7 * 4-bit + orr r1, r1, #(0x1 << 28) + str r1, [r0, #0x0] + + ldr r1, [r0, #0x8] + bic r1, r1, #(0x3 << 14) @ 14 = 7 * 2-bit + orr r1, r1, #(0x3 << 14) @ Pull-up enabled + str r1, [r0, #0x8] + + ldr r1, [r0, #0x4] + orr r1, r1, #(1 << 7) @ 7 = 7 * 1-bit + str r1, [r0, #0x4] + + mov pc, lr + nop + nop + nop + +system_clock_init: + ldr r0, =S5PC210_CLOCK_BASE + + /* APLL(1), MPLL(1), CORE(0), HPM(0) */ + ldr r1, =0x0101 + ldr r2, =0x14200 @ CLK_SRC_CPU + str r1, [r0, r2] + + /* wait ?us */ + mov r1, #0x10000 +1: subs r1, r1, #1 + bne 1b + + /* + * CLK_SRC_TOP0 + * MUX_ONENAND_SEL[28] 0: DOUT133, 1: DOUT166 + * MUX_VPLL_SEL[8] 0: FINPLL, 1: FOUTVPLL + * MUX_EPLL_SEL[4] 0: FINPLL, 1: FOUTEPLL + */ + ldr r1, =0x10000110 + ldr r2, =0x0C210 @ CLK_SRC_TOP + str r1, [r0, r2] + + /* SATA: SCLKMPLL(0), MMC[0:4]: SCLKMPLL(6) */ + ldr r1, =0x0066666 + ldr r2, =0x0C240 @ CLK_SRC_FSYS + str r1, [r0, r2] + /* UART[0:5], PWM: SCLKMPLL(6) */ + ldr r1, =0x6666666 + ldr r2, =0x0C250 @ CLK_SRC_PERIL0_OFFSET + str r1, [r0, r2] + + /* CPU0: CORE, COREM0, COREM1, PERI, ATB, PCLK_DBG, APLL */ + ldr r1, =0x0133730 + ldr r2, =0x14500 @ CLK_DIV_CPU0 + str r1, [r0, r2] + /* CPU1: COPY, HPM */ + ldr r1, =0x03 + ldr r2, =0x14504 @ CLK_DIV_CPU1 + str r1, [r0, r2] + /* DMC0: ACP, ACP_PCLK, DPHY, DMC, DMCD, DMCP, COPY2 CORE_TIMER */ + ldr r1, =0x13111113 + ldr r2, =0x10500 @ CLK_DIV_DMC0 + str r1, [r0, r2] + /* DMC1: PWI, DVSEM, DPM */ + ldr r1, =0x01010100 + ldr r2, =0x10504 @ CLK_DIV_DMC1 + str r1, [r0, r2] + /* LEFTBUS: GDL, GPL */ + ldr r1, =0x13 + ldr r2, =0x04500 @ CLK_DIV_LEFTBUS + str r1, [r0, r2] + /* RIGHHTBUS: GDR, GPR */ + ldr r1, =0x13 + ldr r2, =0x08500 @ CLK_DIV_RIGHTBUS + str r1, [r0, r2] + /* + * CLK_DIV_TOP + * ONENAND_RATIOD[18:16]: 0 SCLK_ONENAND = MOUTONENAND / (n + 1) + * ACLK_200, ACLK_100, ACLK_160, ACLK_133, + */ + ldr r1, =0x00005473 + ldr r2, =0x0C510 @ CLK_DIV_TOP + str r1, [r0, r2] + /* MMC[0:1] */ + ldr r1, =0x000f000f /* 800(MPLL) / (15 + 1) */ + ldr r2, =0x0C544 @ CLK_DIV_FSYS1 + str r1, [r0, r2] + /* MMC[2:3] */ + ldr r1, =0x000f000f /* 800(MPLL) / (15 + 1) */ + ldr r2, =0x0C548 @ CLK_DIV_FSYS2 + str r1, [r0, r2] + /* MMC4 */ + ldr r1, =0x000f /* 800(MPLL) / (15 + 1) */ + ldr r2, =0x0C54C @ CLK_DIV_FSYS3 + str r1, [r0, r2] + /* UART[0:5] */ + ldr r1, =0x774777 + ldr r2, =0x0C550 @ CLK_DIV_PERIL0 + str r1, [r0, r2] + /* SLIMBUS: ???, PWM */ + ldr r1, =0x8 + ldr r2, =0x0C55C @ CLK_DIV_PERIL3 + str r1, [r0, r2] + + /* PLL Setting */ + ldr r1, =0x1C20 + ldr r2, =0x14000 @ APLL_LOCK + str r1, [r0, r2] + ldr r2, =0x14008 @ MPLL_LOCK + str r1, [r0, r2] + ldr r2, =0x0C010 @ EPLL_LOCK + str r1, [r0, r2] + ldr r2, =0x0C020 @ VPLL_LOCK + str r1, [r0, r2] + + /* APLL */ + ldr r1, =0x8000001c + ldr r2, =0x14104 @ APLL_CON1 + str r1, [r0, r2] + ldr r1, =0x80c80601 @ 800MHz + ldr r2, =0x14100 @ APLL_CON0 + str r1, [r0, r2] + /* MPLL */ + ldr r1, =0x8000001C + ldr r2, =0x1410C @ MPLL_CON1 + str r1, [r0, r2] + ldr r1, =0x80c80601 @ 800MHz + ldr r2, =0x14108 @ MPLL_CON0 + str r1, [r0, r2] + /* EPLL */ + ldr r1, =0x0 + ldr r2, =0x0C114 @ EPLL_CON1 + str r1, [r0, r2] + ldr r1, =0x80300302 @ 96MHz + ldr r2, =0x0C110 @ EPLL_CON0 + str r1, [r0, r2] + /* VPLL */ + ldr r1, =0x11000400 + ldr r2, =0x0C124 @ VPLL_CON1 + str r1, [r0, r2] + ldr r1, =0x80350302 @ 108MHz + ldr r2, =0x0C120 @ VPLL_CON0 + str r1, [r0, r2] + + /* + * SMMUJPEG[11], JPEG[6], CSIS1[5] : 0111 1001 + * Turn off all + */ + ldr r1, =0xFFF80000 + ldr r2, =0x0C920 @ CLK_GATE_IP_CAM + str r1, [r0, r2] + + /* Turn off all */ + ldr r1, =0xFFFFFFC0 + ldr r2, =0x0C924 @ CLK_GATE_IP_VP + str r1, [r0, r2] + + /* Turn off all */ + ldr r1, =0xFFFFFFE0 + ldr r2, =0x0C928 @ CLK_GATE_IP_MFC + str r1, [r0, r2] + + /* Turn off all */ + ldr r1, =0xFFFFFFFC + ldr r2, =0x0C92C @ CLK_GATE_IP_G3D + str r1, [r0, r2] + + /* Turn off all */ + ldr r1, =0xFFFFFC00 + ldr r2, =0x0C930 @ CLK_GATE_IP_IMAGE + str r1, [r0, r2] + + /* DSIM0[3], MDNIE0[2], MIE0[1] : 0001 */ + ldr r1, =0xFFFFFFF1 + ldr r2, =0x0C934 @ CLK_GATE_IP_LCD0 + str r1, [r0, r2] + + /* Turn off all */ + ldr r1, =0xFFFFFFC0 + ldr r2, =0x0C938 @ CLK_GATE_IP_LCD1 + str r1, [r0, r2] + + /* + * SMMUPCIE[18], NFCON[16] : 1111 1010 + * PCIE[14], SATA[10], SDMMC43[9:8] : 1011 1000 + * SDMMC1[6], TSI[4], SATAPHY[3], PCIEPHY[2] : 1010 0011 + */ + ldr r1, =0xFFFAB8A3 + ldr r2, =0x0C940 @ CLK_GATE_IP_FSYS + str r1, [r0, r2] + + /* Turn off all */ + ldr r1, =0xFFFFFFFC + ldr r2, =0x0C94C @ CLK_GATE_IP_GPS + str r1, [r0, r2] + + /* + * AC97[27], SPDIF[26], SLIMBUS[25] : 1111 0001 + * I2C2[8] : 1111 1110 + */ + ldr r1, =0xF1FFFEFF + ldr r2, =0x0C950 @ CLK_GATE_IP_PERIL + str r1, [r0, r2] + + /* + * KEYIF[16] : 1111 1110 + */ + ldr r1, =0xFFFEFFFF + ldr r2, =0x0C960 @ CLK_GATE_IP_PERIR + str r1, [r0, r2] + + /* LCD1[5], G3D[3], MFC[2], TV[1] : 1101 0001 */ + ldr r1, =0xFFFFFFD1 + ldr r2, =0x0C970 @ CLK_GATE_BLOCK + str r1, [r0, r2] + mov pc, lr + nop + nop + nop + +system_power_init: + ldr r0, =S5PC210_POWER_BASE @ 0x10020000 + + ldr r2, =0x330C @ PS_HOLD_CONTROL + ldr r1, [r0, r2] + orr r1, r1, #(0x3 << 8) @ Data High, Output En + str r1, [r0, r2] + + /* Power Down */ + add r2, r0, #0x3000 + str r5, [r2, #0xC20] @ TV_CONFIGURATION + str r5, [r2, #0xC40] @ MFC_CONFIGURATION + str r5, [r2, #0xC60] @ G3D_CONFIGURATION + str r5, [r2, #0xCA0] @ LCD1_CONFIGURATION + str r5, [r2, #0xCE0] @ GPS_CONFIGURATION + + mov pc, lr + nop + nop + nop + +tzpc_init: + ldr r0, =0x10110000 + mov r1, #0x0 + str r1, [r0] + mov r1, #0xff + str r1, [r0, #0x0804] + str r1, [r0, #0x0810] + str r1, [r0, #0x081C] + str r1, [r0, #0x0828] + + ldr r0, =0x10120000 + mov r1, #0x0 + str r1, [r0] + mov r1, #0xff + str r1, [r0, #0x0804] + str r1, [r0, #0x0810] + str r1, [r0, #0x081C] + str r1, [r0, #0x0828] + + ldr r0, =0x10130000 + mov r1, #0x0 + str r1, [r0] + mov r1, #0xff + str r1, [r0, #0x0804] + str r1, [r0, #0x0810] + str r1, [r0, #0x081C] + str r1, [r0, #0x0828] + + ldr r0, =0x10140000 + mov r1, #0x0 + str r1, [r0] + mov r1, #0xff + str r1, [r0, #0x0804] + str r1, [r0, #0x0810] + str r1, [r0, #0x081C] + str r1, [r0, #0x0828] + + ldr r0, =0x10150000 + mov r1, #0x0 + str r1, [r0] + mov r1, #0xff + str r1, [r0, #0x0804] + str r1, [r0, #0x0810] + str r1, [r0, #0x081C] + str r1, [r0, #0x0828] + + mov pc, lr diff --git a/board/samsung/universal_c210/onenand.c b/board/samsung/universal_c210/onenand.c new file mode 100644 index 0000000..20e1dc5 --- /dev/null +++ b/board/samsung/universal_c210/onenand.c @@ -0,0 +1,34 @@ +/* + * Copyright (C) 2010 Samsung Electronics + * Kyungmin Park <kyungmin.park@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 <linux/mtd/mtd.h> +#include <linux/mtd/onenand.h> + +void onenand_board_init(struct mtd_info *mtd) +{ + struct onenand_chip *this = mtd->priv; + + this->base = (void *)CONFIG_SYS_ONENAND_BASE; + this->options |= ONENAND_RUNTIME_BADBLOCK_CHECK; +} diff --git a/board/samsung/universal_c210/universal.c b/board/samsung/universal_c210/universal.c new file mode 100644 index 0000000..b65bc6e --- /dev/null +++ b/board/samsung/universal_c210/universal.c @@ -0,0 +1,250 @@ +/* + * Copyright (C) 2010 Samsung Electronics + * Minkyu Kang <mk7.kang@samsung.com> + * Kyungmin Park <kyungmin.park@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 = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE) + + get_ram_size((long *)PHYS_SDRAM_2, 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; +} + +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); + + 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 |