diff options
Diffstat (limited to 'u-boot/board/samsung/universal_c210/lowlevel_init.S')
| -rw-r--r-- | u-boot/board/samsung/universal_c210/lowlevel_init.S | 395 |
1 files changed, 395 insertions, 0 deletions
diff --git a/u-boot/board/samsung/universal_c210/lowlevel_init.S b/u-boot/board/samsung/universal_c210/lowlevel_init.S new file mode 100644 index 0000000..67635bb --- /dev/null +++ b/u-boot/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 |