+/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2011 Andes Technology Corporation
* Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
* Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
+.pic
+
.text
#include <common.h>
#define SDMC_CR1_A (CONFIG_FTSDMC021_BASE + FTSDMC021_CR1)
#define SDMC_CR2_A (CONFIG_FTSDMC021_BASE + FTSDMC021_CR2)
#define SDMC_B0_BSR_A (CONFIG_FTSDMC021_BASE + FTSDMC021_BANK0_BSR)
+#define SDMC_B1_BSR_A (CONFIG_FTSDMC021_BASE + FTSDMC021_BANK1_BSR)
#define SDMC_TP1_D CONFIG_SYS_FTSDMC021_TP1
#define SDMC_TP2_D CONFIG_SYS_FTSDMC021_TP2
#define SDMC_CR2_D CONFIG_SYS_FTSDMC021_CR2
#define SDMC_B0_BSR_D CONFIG_SYS_FTSDMC021_BANK0_BSR
+#define SDMC_B1_BSR_D CONFIG_SYS_FTSDMC021_BANK1_BSR
+
+
+/*
+ * for Orca and Emerald
+ */
+#define BOARD_ID_REG 0x104
+#define BOARD_ID_FAMILY_MASK 0xfff000
+#define BOARD_ID_FAMILY_V5 0x556000
+#define BOARD_ID_FAMILY_K7 0x74b000
/*
* parameters for the static memory controller
#define AHBC_CR_A (CONFIG_FTAHBC020S_BASE + FTAHBC020S_CR)
#define AHBC_BSR6_A (CONFIG_FTAHBC020S_BASE + FTAHBC020S_SLAVE_BSR_6)
+/*
+ * for Orca and Emerald
+ */
+#define AHBC_BSR4_A (CONFIG_FTAHBC020S_BASE + FTAHBC020S_SLAVE_BSR_4)
#define AHBC_BSR6_D CONFIG_SYS_FTAHBC020S_SLAVE_BSR_6
/*
bnez $r1, 1b
.endm
-#ifndef CONFIG_SKIP_LOWLEVEL_INIT
-.globl lowlevel_init
-lowlevel_init:
- move $r10, $lp
-
- led 0x0
- jal mem_init
-
- led 0x10
- jal remap
-
- led 0x20
- ret $r10
-
+.globl mem_init
mem_init:
move $r11, $lp
* we need to set onboard SDRAM before remap and relocation.
*/
led 0x01
- write32 SMC_BANK0_CR_A, SMC_BANK0_CR_D ! 0x10000052
- write32 SMC_BANK0_TPR_A, SMC_BANK0_TPR_D ! 0x00151151
- /*
- * config AHB Controller
- */
+ /*
+ * for Orca and Emerald
+ * disable write protection and reset bank size
+ */
+ li $r0, SMC_BANK0_CR_A
+ lwi $r1, [$r0+#0x00]
+ ori $r1, $r1, 0x8f0
+ xori $r1, $r1, 0x8f0
+ /* check board */
+ li $r3, CONFIG_FTPMU010_BASE + BOARD_ID_REG
+ lwi $r3, [$r3]
+ li $r4, BOARD_ID_FAMILY_MASK
+ and $r3, $r3, $r4
+ li $r4, BOARD_ID_FAMILY_K7
+ xor $r4, $r3, $r4
+ beqz $r4, use_flash_16bit_boot
+ /* 32-bit mode */
+use_flash_32bit_boot:
+ ori $r1, $r1, 0x50
+ li $r2, 0x00151151
+ j sdram_b0_cr
+ /* 16-bit mode */
+use_flash_16bit_boot:
+ ori $r1, $r1, 0x60
+ li $r2, 0x00153153
+ /* SRAM bank0 config */
+sdram_b0_cr:
+ swi $r1, [$r0+#0x00]
+ swi $r2, [$r0+#0x04]
+
+ /* config AHB Controller */
led 0x02
- write32 AHBC_BSR6_A, AHBC_BSR6_D
/*
* config PMU controller
move $lp, $r11
ret
+
+#if !CONFIG_IS_ENABLED(SKIP_LOWLEVEL_INIT)
+
+.globl lowlevel_init
+lowlevel_init:
+ move $r10, $lp
+ led 0x10
+ jal remap
+#if (defined(NDS32_EXT_FPU_DP) || defined(NDS32_EXT_FPU_SP))
+ led 0x1f
+ jal enable_fpu
+#endif
+ led 0x20
+ ret $r10
+
remap:
move $r11, $lp
#ifdef __NDS32_N1213_43U1H__ /* NDS32 V0 ISA - AG101 Only */
mfusr $r0, $pc
#endif /* __NDS32_N1213_43U1H__ */
- /*
- * Remapping
- */
+ /* Remapping */
led 0x1a
- write32 SDMC_B0_BSR_A, SDMC_B0_BSR_D ! 0x00001100
+ write32 SDMC_B0_BSR_A, SDMC_B0_BSR_D ! 0x00001800
+ write32 SDMC_B1_BSR_A, SDMC_B1_BSR_D ! 0x00001880
/* clear empty BSR registers */
led 0x1b
li $r4, CONFIG_FTSDMC021_BASE
li $r5, 0x0
- swi $r5, [$r4 + FTSDMC021_BANK1_BSR]
swi $r5, [$r4 + FTSDMC021_BANK2_BSR]
swi $r5, [$r4 + FTSDMC021_BANK3_BSR]
* a FLASH connected to bank0.
*/
led 0x11
- li $r4, PHYS_SDRAM_0_AT_INIT /* 0x10000000 */
- li $r5, 0x0
- la $r1, relo_base /* get $pc or $lp */
- sub $r2, $r0, $r1
- sethi $r6, hi20(_end)
- ori $r6, $r6, lo12(_end)
- add $r6, $r6, $r2
+ /*
+ * for Orca and Emerald
+ * read sdram base address automatically
+ */
+ li $r5, AHBC_BSR6_A
+ lwi $r8, [$r5]
+ li $r4, 0xfff00000 /* r4 = bank6 base */
+ and $r4, $r4, $r8
+
+ la $r5, _start@GOTOFF
+ la $r6, _end@GOTOFF
1:
lwi.p $r7, [$r5], #4
swi.p $r7, [$r4], #4
* - after remap: flash/rom 0x80000000, sdram: 0x00000000
*/
led 0x1c
+ write32 SDMC_B0_BSR_A, 0x00001000
+ write32 SDMC_B1_BSR_A, 0x00001200
+ li $r5, CONFIG_SYS_TEXT_BASE /* flash base address */
+ add $r11, $r11, $r5 /* add flash address offset for ret */
+ add $r10, $r10, $r5
+ move $lp, $r11
setbf15 AHBC_CR_A, FTAHBC020S_CR_REMAP ! 0x1
+ /*
+ * for Orca and Emerald
+ * extend sdram size from 256MB to 2GB
+ */
+ li $r5, AHBC_BSR6_A
+ lwi $r6, [$r5]
+ li $r4, 0xfff0ffff
+ and $r6 ,$r4, $r6
+ li $r4, 0x000b0000
+ or $r6, $r4, $r6
+ swi $r6, [$r5]
+
+ /*
+ * for Orca and Emerald
+ * extend rom base from 256MB to 2GB
+ */
+ li $r4, AHBC_BSR4_A
+ lwi $r5, [$r4]
+ li $r6, 0xffffff
+ and $r5, $r5, $r6
+ li $r6, 0x80000000
+ or $r5, $r5, $r6
+ swi $r5, [$r4]
#endif /* #ifdef CONFIG_MEM_REMAP */
- move $lp, $r11
+ move $lp, $r11
2:
ret
+ /*
+ * enable_fpu:
+ * Some of Andes CPU version support FPU coprocessor, if so,
+ * and toolchain support FPU instruction set, we should enable it.
+ */
+#if (defined(NDS32_EXT_FPU_DP) || defined(NDS32_EXT_FPU_SP))
+enable_fpu:
+ mfsr $r0, $CPU_VER /* enable FPU if it exists */
+ srli $r0, $r0, 3
+ andi $r0, $r0, 1
+ beqz $r0, 1f /* skip if no COP */
+ mfsr $r0, $FUCOP_EXIST
+ srli $r0, $r0, 31
+ beqz $r0, 1f /* skip if no FPU */
+ mfsr $r0, $FUCOP_CTL
+ ori $r0, $r0, 1
+ mtsr $r0, $FUCOP_CTL
+1:
+ ret
+#endif
+
.globl show_led
show_led:
li $r8, (CONFIG_DEBUG_LED)
swi $r7, [$r8]
ret
-#endif /* #ifndef CONFIG_SKIP_LOWLEVEL_INIT */
+#endif /* #if !CONFIG_IS_ENABLED(SKIP_LOWLEVEL_INIT) */
projects / platform / kernel / u-boot.git / blobdiff