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authorWolfgang Denk <wd@denx.de>2011-06-01 22:04:12 +0200
committerWolfgang Denk <wd@denx.de>2011-06-01 22:04:12 +0200
commit033cd2c42bf335d3b96e9612695f6c30b83dce2b (patch)
tree1bc9e1d9163cd3114bfeb016d4f4311fbbbec491 /board/samsung/smdkv310/lowlevel_init.S
parent2130b03309dcf56dab11b6fd0be3b4bedc7f628c (diff)
parentcd3af8b56749b3200cd858b5a9424c6661958e5f (diff)
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Merge branch 'master' of git://git.denx.de/u-boot-arm
* 'master' of git://git.denx.de/u-boot-arm: SMDKV310: Fix incorrect conditional compilation for MIU linear mapping SMDKV310: CPU fequency and mmc_pre_ratio modified armv7: Add support for ST-Ericsson U8500 href platform I2C: Add driver for ST-Ericsson U8500 i2c armv7: Add ST-Ericsson u8500 arch Kirkwood: boards cleanup for deprecated CONFIG_CMD_AUTOSCRIPT ARMV7: Vexpress: Add missing MMC header arm/km: update mgcoge3un board support mvgbe: enable configurability of PORT_SERIAL_CONTROL_VALUE arm/km: rename mgcoge2un to mgcoge3un arm/km: add second serial interface for kirkwood arm/km: disable ls (through jffs2 support) arm/km: introduce bootcount env variable and clean km_arm arm/km: move CONFIG_EXTRA_ENV_SETTINGS from board to km_arm file arm/km: remove CONFIG_SYS_KWD_CONFIG from keymile-common.h ARMV7: MMC SPL Boot support for SMDKV310 board ARMV7: Add support for Samsung SMDKV310 Board S5PC2XX: clock: support pwm clock for evt1 (cpu revision 1) S5P: add set_mmc_clk for external clock control S5PC2XX: Support the cpu revision S5P:SROM config code moved to s5p-common directory Add _end for the end of u-boot image for SMDK6400 MMC S5P: Fix typo S5P: GPIO Macro Values Corrected. SMDK2410: various cleanup/code style fixes SMDK2410: use the CFI driver (and remove the old one) SMDK2410: remove unneeded config.mk SMDK2410: activate ARM relocation feature BeagleBoard: fixed typo in typecast mvsata: issue hard reset on initialization VCMA9: use ARM relocation feature to fix build error MX31: drop warnings due to missing prototype for mxc_watchdog_reset() MX5: drop config.mk from efikamx board MX31: Make get_reset_cause() static and drop unreachable code MX53: Remove CONFIG_SYS_BOOTMAPSZ from mx53 config files. MX53: Handle silicon revision 2.1 case mx5: board: code clean up for checkboard code MX51: vision2: Fix build for vision2 board. MX51: vision: Let video mode struct be independant of watchdog. MX53: Add initial support for MX53SMD board. MX53: support for freescale MX53LOCO board mx5: Fix CONFIG_OF_LIBFDT redefined warning mx5: Remove unnecessary CONFIG_SYS_BOOTMAPSZ definition mx31pdk: Clean up mx31pdk.h file
Diffstat (limited to 'board/samsung/smdkv310/lowlevel_init.S')
-rw-r--r--board/samsung/smdkv310/lowlevel_init.S470
1 files changed, 470 insertions, 0 deletions
diff --git a/board/samsung/smdkv310/lowlevel_init.S b/board/samsung/smdkv310/lowlevel_init.S
new file mode 100644
index 0000000..04f6579
--- /dev/null
+++ b/board/samsung/smdkv310/lowlevel_init.S
@@ -0,0 +1,470 @@
+/*
+ * Lowlevel setup for SMDKV310 board based on S5PC210
+ *
+ * Copyright (C) 2011 Samsung Electronics
+ *
+ * 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>
+
+/*
+ * Register usages:
+ *
+ * r5 has zero always
+ * r7 has GPIO part1 base 0x11400000
+ * r6 has GPIO part2 base 0x11000000
+ */
+
+#define MEM_DLLl_ON
+
+_TEXT_BASE:
+ .word CONFIG_SYS_TEXT_BASE
+
+ .globl lowlevel_init
+lowlevel_init:
+ push {lr}
+
+ /* r5 has always zero */
+ mov r5, #0
+ ldr r7, =S5PC210_GPIO_PART1_BASE
+ ldr r6, =S5PC210_GPIO_PART2_BASE
+
+ /* check reset status */
+ ldr r0, =(S5PC210_POWER_BASE + 0x81C) @ INFORM7
+ ldr r1, [r0]
+
+ /* AFTR wakeup reset */
+ ldr r2, =S5P_CHECK_DIDLE
+ cmp r1, r2
+ beq exit_wakeup
+
+ /* Sleep wakeup reset */
+ ldr r2, =S5P_CHECK_SLEEP
+ cmp r1, r2
+ beq wakeup_reset
+
+ /*
+ * If U-boot is already running in ram, no need to relocate U-Boot.
+ * Memory controller must be configured before relocating U-Boot
+ * in ram.
+ */
+ ldr r0, =0x00ffffff /* r0 <- Mask Bits*/
+ bic r1, pc, r0 /* pc <- current addr of code */
+ /* r1 <- unmasked bits of pc */
+
+ ldr r2, _TEXT_BASE /* r2 <- original base addr in ram */
+ bic r2, r2, r0 /* r2 <- unmasked bits of r2*/
+ cmp r1, r2 /* compare r1, r2 */
+ beq 1f /* r0 == r1 then skip sdram init */
+
+ /* init system clock */
+ bl system_clock_init
+
+ /* Memory initialize */
+ bl mem_ctrl_asm_init
+
+1:
+ /* for UART */
+ bl uart_asm_init
+ bl tzpc_init
+ pop {pc}
+
+wakeup_reset:
+ bl system_clock_init
+ bl mem_ctrl_asm_init
+ bl tzpc_init
+
+exit_wakeup:
+ /* Load return address and jump to kernel */
+ ldr r0, =(S5PC210_POWER_BASE + 0x800) @ INFORM0
+
+ /* r1 = physical address of s5pc210_cpu_resume function */
+ ldr r1, [r0]
+
+ /* Jump to kernel*/
+ mov pc, r1
+ nop
+ nop
+
+/*
+ * system_clock_init: Initialize core clock and bus clock.
+ * void system_clock_init(void)
+ */
+system_clock_init:
+ push {lr}
+ 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
+2: subs r1, r1, #1
+ bne 2b
+
+ ldr r1, =0x00
+ ldr r2, =0x0C210 @CLK_SRC_TOP0
+ str r1, [r0, r2]
+
+ ldr r1, =0x00
+ ldr r2, =0x0C214 @CLK_SRC_TOP1_OFFSET
+ str r1, [r0, r2]
+
+ /* DMC */
+ ldr r1, =0x00
+ ldr r2, =0x10200 @CLK_SRC_DMC_OFFSET
+ str r1, [r0, r2]
+
+ /*CLK_SRC_LEFTBUS */
+ ldr r1, =0x00
+ ldr r2, =0x04200 @CLK_SRC_LEFTBUS_OFFSET
+ str r1, [r0, r2]
+
+ /*CLK_SRC_RIGHTBUS */
+ ldr r1, =0x00
+ ldr r2, =0x08200 @CLK_SRC_RIGHTBUS_OFFSET
+ str r1, [r0, r2]
+
+ /* SATA: SCLKMPLL(0), MMC[0:4]: SCLKMPLL(6) */
+ ldr r1, =0x066666
+ ldr r2, =0x0C240 @ CLK_SRC_FSYS
+ str r1, [r0, r2]
+
+ /* UART[0:4], PWM: SCLKMPLL(6) */
+ ldr r1, =0x06666666
+ ldr r2, =0x0C250 @CLK_SRC_PERIL0_OFFSET
+ str r1, [r0, r2]
+
+ /* wait ?us */
+ mov r1, #0x10000
+3: subs r1, r1, #1
+ bne 3b
+
+ /*
+ * CLK_DIV_CPU0:
+ *
+ * PCLK_DBG_RATIO[20] 0x1
+ * ATB_RATIO[16] 0x3
+ * PERIPH_RATIO[12] 0x3
+ * COREM1_RATIO[8] 0x7
+ * COREM0_RATIO[4] 0x3
+ */
+ ldr r1, =0x0133730
+ ldr r2, =0x14500 @CLK_DIV_CPU0_OFFSET
+ str r1, [r0, r2]
+
+ /* CLK_DIV_CPU1: COPY_RATIO [0] 0x3 */
+ ldr r1, =0x03
+ ldr r2, =0x14504 @CLK_DIV_CPU1_OFFSET
+ str r1, [r0, r2]
+
+ /*
+ * CLK_DIV_DMC0:
+ *
+ * CORE_TIMERS_RATIO[28] 0x1
+ * COPY2_RATIO[24] 0x3
+ * DMCP_RATIO[20] 0x1
+ * DMCD_RATIO[16] 0x1
+ * DMC_RATIO[12] 0x1
+ * DPHY_RATIO[8] 0x1
+ * ACP_PCLK_RATIO[4] 0x1
+ * ACP_RATIO[0] 0x3
+ */
+ ldr r1, =0x13111113
+ ldr r2, =0x010500 @CLK_DIV_DMC0_OFFSET
+ str r1, [r0, r2]
+
+ /*
+ * CLK_DIV_DMC1:
+ *
+ * DPM_RATIO[24] 0x1
+ * DVSEM_RATIO[16] 0x1
+ * PWI_RATIO[8] 0x1
+ */
+ ldr r1, =0x01010100
+ ldr r2, =0x010504 @CLK_DIV_DMC1_OFFSET
+ str r1, [r0, r2]
+
+ /*
+ * CLK_DIV_LEFRBUS:
+ *
+ * GPL_RATIO[4] 0x1
+ * GDL_RATIO[0] 0x3
+ */
+ ldr r1, =0x013
+ ldr r2, =0x04500 @CLK_DIV_LEFTBUS_OFFSET
+ str r1, [r0, r2]
+
+ /*
+ * CLK_DIV_RIGHTBUS:
+ *
+ * GPR_RATIO[4] 0x1
+ * GDR_RATIO[0] 0x3
+ */
+ ldr r1, =0x013
+ ldr r2, =0x08500 @CLK_DIV_RIGHTBUS_OFFSET
+ str r1, [r0, r2]
+
+ /*
+ * CLK_DIV_TOP:
+ *
+ * ONENAND_RATIO[16] 0x0
+ * ACLK_133_RATIO[12] 0x5
+ * ACLK_160_RATIO[8] 0x4
+ * ACLK_100_RATIO[4] 0x7
+ * ACLK_200_RATIO[0] 0x3
+ */
+ ldr r1, =0x05473
+ ldr r2, =0x0C510 @CLK_DIV_TOP_OFFSET
+ 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]
+
+ /* wait ?us */
+ mov r1, #0x10000
+4: subs r1, r1, #1
+ bne 4b
+
+ /*
+ * CLK_DIV_PERIL0:
+ *
+ * UART5_RATIO[20] 8
+ * UART4_RATIO[16] 8
+ * UART3_RATIO[12] 8
+ * UART2_RATIO[8] 8
+ * UART1_RATIO[4] 8
+ * UART0_RATIO[0] 8
+ */
+ ldr r1, =0x774777
+ ldr r2, =0x0C550 @CLK_DIV_PERIL0_OFFSET
+ str r1, [r0, r2]
+
+ /* SLIMBUS: ???, PWM */
+ ldr r1, =0x8
+ ldr r2, =0x0C55C @ CLK_DIV_PERIL3
+ str r1, [r0, r2]
+
+ /* Set PLL locktime */
+ ldr r1, =0x01C20
+ ldr r2, =0x014000 @APLL_LOCK_OFFSET
+ str r1, [r0, r2]
+ ldr r1, =0x01C20
+ ldr r2, =0x014008 @MPLL_LOCK_OFFSET
+ str r1, [r0, r2]
+ ldr r1, =0x01C20
+ ldr r2, =0x0C010 @EPLL_LOCK_OFFSET
+ str r1, [r0, r2]
+ ldr r1, =0x01C20
+ ldr r2, =0x0C020 @VPLL_LOCK_OFFSET
+ str r1, [r0, r2]
+
+ /*
+ * APLL_CON1:
+ *
+ * APLL_AFC_ENB[31] 0x1
+ * APLL_AFC[0] 0xC
+ */
+ ldr r1, =0x8000000C
+ ldr r2, =0x014104 @APLL_CON1_OFFSET
+ str r1, [r0, r2]
+
+ /*
+ * APLL_CON0:
+ *
+ * APLL_MDIV[16] 0xFA
+ * APLL_PDIV[8] 0x6
+ * APLL_SDIV[0] 0x1
+ */
+ ldr r1, =0x80FA0601
+ ldr r2, =0x014100 @APLL_CON0_OFFSET
+ str r1, [r0, r2]
+
+ /*
+ * MPLL_CON1:
+ *
+ * MPLL_AFC_ENB[31] 0x1
+ * MPLL_AFC[0] 0x1C
+ */
+ ldr r1, =0x0000001C
+ ldr r2, =0x01410C @MPLL_CON1_OFFSET
+ str r1, [r0, r2]
+
+ /*
+ * MPLL_CON0:
+ *
+ * MPLL_MDIV[16] 0xC8
+ * MPLL_PDIV[8] 0x6
+ * MPLL_SDIV[0] 0x1
+ */
+ ldr r1, =0x80C80601
+ ldr r2, =0x014108 @MPLL_CON0_OFFSET
+ str r1, [r0, r2]
+
+ /* EPLL */
+ ldr r1, =0x0
+ ldr r2, =0x0C114 @EPLL_CON1_OFFSET
+ str r1, [r0, r2]
+
+ /*
+ * EPLL_CON0:
+ *
+ * EPLL_MDIV[16] 0x30
+ * EPLL_PDIV[8] 0x3
+ * EPLL_SDIV[0] 0x2
+ */
+ ldr r1, =0x80300302
+ ldr r2, =0x0C110 @EPLL_CON0_OFFSET
+ str r1, [r0, r2]
+
+ /*
+ * VPLL_CON1:
+ *
+ * VPLL_MRR[24] 0x11
+ * VPLL_MFR[16] 0x0
+ * VPLL_K[0] 0x400
+ */
+ ldr r1, =0x11000400
+ ldr r2, =0x0C124 @VPLL_CON1_OFFSET
+ str r1, [r0, r2]
+
+ /*
+ * VPLL_CON0:
+ *
+ * VPLL_MDIV[16] 0x35
+ * VPLL_PDIV[8] 0x3
+ * VPLL_SDIV[0] 0x2
+ */
+ ldr r1, =0x80350302
+ ldr r2, =0x0C120 @VPLL_CON0_OFFSET
+ str r1, [r0, r2]
+
+ /* wait ?us */
+ mov r1, #0x30000
+3: subs r1, r1, #1
+ bne 3b
+
+ pop {pc}
+/*
+ * uart_asm_init: Initialize UART in asm mode, 115200bps fixed.
+ * void uart_asm_init(void)
+ */
+ .globl uart_asm_init
+uart_asm_init:
+
+ /* setup UART0-UART3 GPIOs (part1) */
+ mov r0, r7
+ ldr r1, =0x22222222
+ str r1, [r0, #0x00] @ S5PC210_GPIO_A0_OFFSET
+ ldr r1, =0x00222222
+ str r1, [r0, #0x20] @ S5PC210_GPIO_A1_OFFSET
+
+ ldr r0, =S5PC210_UART_BASE
+ add r0, r0, #S5PC210_DEFAULT_UART_OFFSET
+
+ ldr r1, =0x3C5
+ str r1, [r0, #0x4]
+ ldr r1, =0x111
+ str r1, [r0, #0x8]
+ ldr r1, =0x3
+ str r1, [r0, #0x0]
+ ldr r1, =0x35
+ str r1, [r0, #0x28]
+ ldr r1, =0x4
+ str r1, [r0, #0x2c]
+
+ mov pc, lr
+ nop
+ nop
+ nop
+
+/* Setting TZPC[TrustZone Protection Controller] */
+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]
+
+ ldr r0, =0x10160000
+ 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