[PATCH v5 2/6] mips: ls1c300: add base support
Du Huanpeng
dhu at hodcarrier.org
Wed Jul 26 14:30:23 CEST 2023
- pinmux setup functions for debug uart
- lowlevel initialization: sdram, pll, spi, debug uart
note that, this SoC have NO useable ram after reset,
do not use nested call when doing lowlevel_init.
Signed-off-by: Du Huanpeng <dhu at hodcarrier.org>
---
arch/mips/mach-lsmips/cpu.c | 19 +++
arch/mips/mach-lsmips/include/mach/serial.h | 16 +++
arch/mips/mach-lsmips/ls1c300/gpio.c | 66 +++++++++
arch/mips/mach-lsmips/ls1c300/init.c | 62 ++++++++
arch/mips/mach-lsmips/ls1c300/lowlevel_init.S | 135 ++++++++++++++++++
arch/mips/mach-lsmips/ls1c300/sdram.S | 96 +++++++++++++
arch/mips/mach-lsmips/ls1c300/serial.c | 109 ++++++++++++++
arch/mips/mach-lsmips/spl.c | 47 ++++++
include/configs/ls1c300.h | 34 +++++
9 files changed, 584 insertions(+)
create mode 100644 arch/mips/mach-lsmips/cpu.c
create mode 100644 arch/mips/mach-lsmips/include/mach/serial.h
create mode 100644 arch/mips/mach-lsmips/ls1c300/gpio.c
create mode 100644 arch/mips/mach-lsmips/ls1c300/init.c
create mode 100644 arch/mips/mach-lsmips/ls1c300/lowlevel_init.S
create mode 100644 arch/mips/mach-lsmips/ls1c300/sdram.S
create mode 100644 arch/mips/mach-lsmips/ls1c300/serial.c
create mode 100644 arch/mips/mach-lsmips/spl.c
create mode 100644 include/configs/ls1c300.h
diff --git a/arch/mips/mach-lsmips/cpu.c b/arch/mips/mach-lsmips/cpu.c
new file mode 100644
index 0000000000..339088b435
--- /dev/null
+++ b/arch/mips/mach-lsmips/cpu.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 Stefan Roese <sr at denx.de>
+ */
+
+#include <common.h>
+#include <init.h>
+#include <malloc.h>
+#include <linux/bitops.h>
+#include <linux/io.h>
+#include <linux/sizes.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int dram_init(void)
+{
+ gd->ram_size = get_ram_size((void *)CFG_SYS_SDRAM_BASE, SZ_256M);
+ return 0;
+}
diff --git a/arch/mips/mach-lsmips/include/mach/serial.h b/arch/mips/mach-lsmips/include/mach/serial.h
new file mode 100644
index 0000000000..4da1cb434c
--- /dev/null
+++ b/arch/mips/mach-lsmips/include/mach/serial.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2020 MediaTek Inc.
+ *
+ * Author: Gao Weijie <weijie.gao at mediatek.com>
+ *
+ * Copyright (C) 2022 Du Huanpeng <dhu at hodcarrier.org>
+ */
+
+#ifndef __LSMIPS_SERIAL_H_
+#define __LSMIPS_SERIAL_H_
+
+void lsmips_spl_serial_init(void);
+int gpio_set_alternate(int gpio, int func);
+
+#endif /* __LSMIPS_SERIAL_H_ */
diff --git a/arch/mips/mach-lsmips/ls1c300/gpio.c b/arch/mips/mach-lsmips/ls1c300/gpio.c
new file mode 100644
index 0000000000..2195738b2b
--- /dev/null
+++ b/arch/mips/mach-lsmips/ls1c300/gpio.c
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2022 Du Huanpeng <dhu at hodcarrier.org>
+ */
+
+#include <linux/errno.h>
+#include <asm/bitops.h>
+
+#define CBUS_FIRST0 0xbfd011c0
+#define CBUS_SECOND0 0xbfd011d0
+#define CBUS_THIRD0 0xbfd011e0
+#define CBUS_FOURTHT0 0xbfd011f0
+#define CBUS_FIFTHT0 0xbfd01200
+
+#define CBUS_FIRST1 0xbfd011c4
+#define CBUS_SECOND1 0xbfd011d4
+#define CBUS_THIRD1 0xbfd011e4
+#define CBUS_FOURTHT1 0xbfd011f4
+#define CBUS_FIFTHT1 0xbfd01204
+
+#define CBUS_FIRST2 0xbfd011c8
+#define CBUS_SECOND2 0xbfd011d8
+#define CBUS_THIRD2 0xbfd011e8
+#define CBUS_FOURTHT2 0xbfd011f8
+#define CBUS_FIFTHT2 0xbfd01208
+
+#define CBUS_FIRST3 0xbfd011cc
+#define CBUS_SECOND3 0xbfd011dc
+#define CBUS_THIRD3 0xbfd011ec
+#define CBUS_FOURTHT3 0xbfd011fc
+#define CBUS_FIFTHT3 0xbfd0120c
+
+/*
+ * pinmux for debug uart and spl only, for others, please
+ * use a pinctrl driver and device-tree for pin muxing.
+ *
+ * @gpio: gpio number
+ * @func: alternate function 1 to 5, 0 for GPIO.
+ */
+
+int gpio_set_alternate(int gpio, int func)
+{
+ volatile void __iomem *addr;
+ int i;
+
+ if (gpio < 0 || gpio > 104)
+ return -ENODEV;
+ if (func < 0 || func > 5)
+ return -EINVAL;
+
+ if (func) {
+ i = func - 1;
+ addr = (void *)CBUS_FIRST0 + i * 16;
+ set_bit(gpio, addr);
+ } else {
+ /* GPIO, clear CBUS 1 ~ 5 */
+ i = 5;
+ }
+
+ while (i--) {
+ addr = (void *)CBUS_FIRST0 + 16 * i;
+ clear_bit(gpio, addr);
+ }
+
+ return 0;
+}
diff --git a/arch/mips/mach-lsmips/ls1c300/init.c b/arch/mips/mach-lsmips/ls1c300/init.c
new file mode 100644
index 0000000000..0d5576fddf
--- /dev/null
+++ b/arch/mips/mach-lsmips/ls1c300/init.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2020 MediaTek Inc.
+ *
+ * Author: Gao Weijie <weijie.gao at mediatek.com>
+ *
+ * based on: arch/mips/mach-mtmips/mt7628/init.c
+ * Copyright (C) 2020-2022 Du Huanpeng <dhu at hodcarrier.org>
+ */
+
+#include <common.h>
+#include <clk.h>
+#include <dm.h>
+#include <dm/uclass.h>
+#include <dt-bindings/clock/ls1c300-clk.h>
+#include <linux/io.h>
+#include <linux/sizes.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int print_cpuinfo(void)
+{
+ struct udevice *udev;
+ struct clk clk;
+ int ret;
+ ulong xtal;
+ char buf[SZ_32];
+
+ printf("CPU: Loongson ls1c300b\n");
+
+ ret = uclass_get_device_by_driver(UCLASS_CLK, DM_DRIVER_GET(ls1c300_clk), &udev);
+ if (ret) {
+ printf("error: clock driver not found.\n");
+ return 0;
+ }
+
+ clk.dev = udev;
+
+ ret = clk_request(udev, &clk);
+ if (ret < 0)
+ return ret;
+
+ clk.id = CLK_XTAL;
+ xtal = clk_get_rate(&clk);
+
+ clk.id = CLK_CPU_THROT;
+ gd->cpu_clk = clk_get_rate(&clk);
+
+ clk.id = CLK_APB;
+ gd->mem_clk = clk_get_rate(&clk);
+
+ printf("Clock: CPU: %sMHz, ", strmhz(buf, gd->cpu_clk));
+ printf("SDRAM: %sMHz, ", strmhz(buf, gd->mem_clk));
+ printf("XTAL: %sMHz\n", strmhz(buf, xtal));
+
+ return 0;
+}
+
+ulong notrace get_tbclk(void)
+{
+ return gd->cpu_clk / 2;
+}
diff --git a/arch/mips/mach-lsmips/ls1c300/lowlevel_init.S b/arch/mips/mach-lsmips/ls1c300/lowlevel_init.S
new file mode 100644
index 0000000000..4b453df621
--- /dev/null
+++ b/arch/mips/mach-lsmips/ls1c300/lowlevel_init.S
@@ -0,0 +1,135 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2020 MediaTek Inc.
+ *
+ * Author: Gao Weijie <weijie.gao at mediatek.com>
+ *
+ * Copyright (C) 2020-2023 Du Huanpeng <dhu at hodcarrier.org>
+ */
+
+#include <config.h>
+#include <asm-offsets.h>
+#include <asm/cacheops.h>
+#include <asm/regdef.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <asm/asm.h>
+#include <linux/sizes.h>
+
+/* PLL control register */
+#define NAND_BASE 0xbfe70000
+#define START_FREQ 0x8030
+#define CLK_DIV_PARAM 0x8034
+#define CPU_THROT 0xc010
+
+/* START_FREQ */
+#define PLL_VALID 31
+#define Reserved_24 24
+#define FRAC_N 16
+#define M_PLL 8
+#define Reserved_4 4
+#define RST_TIME 2
+#define SDRAM_DIV 0
+ #define SDRAM_DIV2 0
+ #define SDRAM_DIV4 1
+ #define SDRAM_DIV3 2
+
+/* CLK_DIV_PARAM */
+#define PIX_DIV 24
+#define CAM_DIV 16
+#define CPU_DIV 8
+#define PIX_DIV_VALID 5
+#define PIX_SEL 4
+#define CAM_DIV_VALID 3
+#define CAM_SEL 2
+#define CPU_DIV_VALID 1
+#define CPU_SEL 0
+
+/* Document:
+ * Freq_PLL = XIN *(M_PLL + FRAC_N)/4
+ */
+#define XIN 24000000
+#define PLL_VALID_1 (1<<PLL_VALID)
+#define PREP_M_PLL(Freq_PLL) (((Freq_PLL * 4) / XIN) << M_PLL)
+#define PREP_SDRAM_DIV(div) (div<<SDRAM_DIV)
+#define PREP_CPU_DIV(div1) ((0x80|div1)<<CPU_DIV | (div1&&div1)<<CPU_DIV_VALID)
+#define PREP_PIX_DIV(div2) (div2<<PIX_DIV)
+#define PREP_CAM_DIV(div3) (div3<<CAM_DIV)
+
+/* PLL @264MHz, CPU @132MHz, SDRAM @66MHz */
+#define CFG_START_FREQ (PLL_VALID_1 | PREP_M_PLL(264000000) | SDRAM_DIV2)
+#define CFG_CLK_DIV_PARAM (PREP_CPU_DIV(2) | PREP_PIX_DIV(0x24) | PREP_CAM_DIV(0x24))
+#define CFG_CPU_THROT 15
+
+/* SPI0 control register */
+#define SPI0_BASE 0xbfe80000
+#define SPCR 0
+#define SPSR 1
+#define TxFIFO 2
+#define RxFIFO 2
+#define SPER 3
+#define SFC_PARAM 4
+ #define CLK_DIV 4
+ #define DUAL_IO 3
+ #define FAST_READ 2
+ #define BURST_EN 1
+ #define MEMORY_EN 0
+#define SFC_SOFTCS 5
+#define SFC_TIMING 6
+ #define T_FAST 2
+ #define T_CSH 0
+
+ .set noreorder
+LEAF(ls1c300_pll_init)
+#if !CONFIG_IS_ENABLED(SKIP_LOWLEVEL_INIT)
+ li t0, NAND_BASE
+ li t1, CFG_START_FREQ
+ li t2, CFG_CLK_DIV_PARAM
+ li t3, CFG_CPU_THROT
+
+ sw t3, CPU_THROT (t0)
+ sw t2, CLK_DIV_PARAM (t0)
+ sw t1, START_FREQ (t0)
+
+ ori t2, 1<<CPU_SEL
+ sw t2, CLK_DIV_PARAM (t0)
+#endif
+ li v0, 264000000
+ jr ra
+ nop
+END(ls1c300_pll_init)
+
+LEAF(ls1c300_spi_init)
+#if !CONFIG_IS_ENABLED(SKIP_LOWLEVEL_INIT)
+ li t0, SPI0_BASE
+ li t1, (1<<MEMORY_EN) | (1<<BURST_EN) | (1<<FAST_READ) | (1<<DUAL_IO)
+ sb t1, SFC_PARAM (t0)
+ li t2, (1<<T_FAST) | (1<<T_CSH)
+ sb t2, SFC_TIMING (t0)
+#endif
+ jr ra
+ nop
+END(ls1c300_spi_init)
+
+NESTED(lowlevel_init, 0, ra)
+ /* Save ra and do real lowlevel initialization */
+ move s0, ra
+ /* Setup PLL @264MHz */
+ PTR_LA t9, ls1c300_pll_init
+ jalr t9
+ nop
+
+ /* Setup SPI Dual IO at 33MHz */
+ PTR_LA t9, ls1c300_spi_init
+ jalr t9
+ nop
+
+ /* Setup external SDRAM @66MHz */
+ PTR_LA t9, ls1c300_sdram_init
+ jalr t9
+ nop
+
+ move ra, s0
+ jr ra
+ nop
+END(lowlevel_init)
diff --git a/arch/mips/mach-lsmips/ls1c300/sdram.S b/arch/mips/mach-lsmips/ls1c300/sdram.S
new file mode 100644
index 0000000000..4797b1d8a2
--- /dev/null
+++ b/arch/mips/mach-lsmips/ls1c300/sdram.S
@@ -0,0 +1,96 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2020-2022 Du Huanpeng <dhu at hodcarrier.org>
+ */
+
+#include <config.h>
+#include <asm-offsets.h>
+#include <asm/cacheops.h>
+#include <asm/regdef.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <asm/asm.h>
+#include <linux/sizes.h>
+
+/* sdram control 64 bit register */
+#define SD_CONFIG 0xbfd00000
+#define SD_CONFIGHI 0x414
+#define SD_CONFIGLO 0x410
+
+#define CONFIG_VALID 41
+#define HANG_UP 40
+#define DEF_SEL 39
+#define TWR 37
+#define TREF 25
+#define TRAS 21
+#define TRFC 17
+#define TRP 14
+#define TCL 11
+#define TRCD 8
+
+#define SD_BIT 6
+ #define SD_8BIT (0<<SD_BIT)
+ #define SD_16BIT (1<<SD_BIT)
+ #define SD_32BIT (2<<SD_BIT)
+#define SD_CSIZE 3
+ #define SD_CSIZE_512 (0<<SD_CSIZE)
+ #define SD_CSIZE_1K (1<<SD_CSIZE)
+ #define SD_CSIZE_2K (2<<SD_CSIZE)
+ #define SD_CSIZE_4K (3<<SD_CSIZE)
+ #define SD_CSIZE_256 (7<<SD_CSIZE)
+#define SD_RSIZE 0
+ #define SD_RSIZE_2K (0<<SD_RSIZE)
+ #define SD_RSIZE_4K (1<<SD_RSIZE)
+ #define SD_RSIZE_8K (2<<SD_RSIZE)
+ #define SD_RSIZE_16K (3<<SD_RSIZE)
+
+#define SD_CFG_1(tWR, tREF, tRAS, tRFC, tRP, tCL, tRCD) \
+ ((tWR<<TWR)|(tREF<<TREF)|(tRAS<<TRAS)|(tRFC<<TRFC)|(tRP<<TRP)|(tCL<<TCL)|(tRCD<<TRCD))
+#define CFG_SD_0(b, c, r) \
+ ((b<<SD_BIT)|(c<<SD_CSIZE)|(r<<SD_RSIZE))
+/*
+ * recommended values by ls1c300 user manual,
+ * tweak to fit your board.
+ */
+#define SD_CONFIG_133MHz SD_CFG_1(2, 0x818, 6, 8, 3, 3, 3)
+#define SD_CONFIG_100MHz SD_CFG_1(2, 0x620, 5, 6, 2, 3, 2)
+#define SD_CONFIG_75MHz SD_CFG_1(1, 0x494, 4, 5, 2, 2, 2)
+#define SD_CONFIG_33MHz SD_CFG_1(1, 0x204, 2, 2, 1, 2, 1)
+
+#define SD_CONFIG_66MHz SD_CFG_1(1, 0x401, 4, 4, 2, 2, 2)
+
+#define SD_CONFIG64 (SD_CONFIG_66MHz | SD_16BIT | SD_CSIZE_1K | SD_RSIZE_8K)
+#define CFG_SDCONFIGHI (SD_CONFIG64 /(1<<32))
+#define CFG_SDCONFIGLO (SD_CONFIG64 %(1<<32))
+
+ .set noreorder
+/*
+ * Loongson ls1c300 SoC do not have onchip sram for initial stack,
+ * initialize the external sdram on reset as early as possiable.
+ */
+LEAF(ls1c300_sdram_init)
+#if !CONFIG_IS_ENABLED(SKIP_LOWLEVEL_INIT)
+ li t0, SD_CONFIG
+ li t1, CFG_SDCONFIGLO
+ li t2, CFG_SDCONFIGHI
+
+/* store twice as the hardware manual required. */
+ sw t1, SD_CONFIGLO (t0)
+ sw t2, SD_CONFIGHI (t0)
+ sync
+
+ sw t1, SD_CONFIGLO (t0)
+ sw t2, SD_CONFIGHI (t0)
+ sync
+
+ ori t2, 1<<(CONFIG_VALID-32)
+ sw t1, SD_CONFIGLO (t0)
+ sw t2, SD_CONFIGHI (t0)
+ sync
+#endif
+ li v0, SZ_64M
+ jr ra
+ nop
+END(ls1c300_sdram_init)
+
+
diff --git a/arch/mips/mach-lsmips/ls1c300/serial.c b/arch/mips/mach-lsmips/ls1c300/serial.c
new file mode 100644
index 0000000000..93fd653385
--- /dev/null
+++ b/arch/mips/mach-lsmips/ls1c300/serial.c
@@ -0,0 +1,109 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2020 MediaTek Inc.
+ *
+ * Author: Gao Weijie <weijie.gao at mediatek.com>
+ *
+ * Copyright (C) 2020-2022 Du Huanpeng <dhu at hodcarrier.org>
+ */
+
+#include <mach/serial.h>
+#include <linux/kernel.h>
+
+struct uart_pin_config {
+ char port;
+ char af;
+ char rx;
+ char tx;
+};
+
+struct uart_pin_config con[] = {
+#if CONFIG_CONS_INDEX == 0
+ { 0, 2, 74, 75 },
+ { 0, 3, 23, 24 },
+ { 0, 3, 99, 100 },
+
+#elif CONFIG_CONS_INDEX == 1
+ { 1, 1, 17, 18 },
+ { 1, 1, 101, 102 },
+ { 1, 2, 40, 41 },
+ { 1, 4, 2, 3 },
+
+#elif CONFIG_CONS_INDEX == 2
+ { 2, 2, 36, 37 },
+ { 2, 2, 42, 43 },
+ { 2, 3, 27, 28 },
+ { 2, 3, 103, 104 },
+ { 2, 4, 4, 5 },
+
+#elif CONFIG_CONS_INDEX == 3
+ { 3, 2, 17, 18 },
+ { 3, 2, 33, 34 },
+ { 3, 2, 44, 45 },
+ { 3, 4, 0, 1 },
+
+#elif CONFIG_CONS_INDEX == 4
+ { 4, 5, 23, 24 },
+ { 4, 5, 58, 59 },
+ { 4, 5, 80, 79 },
+
+#elif CONFIG_CONS_INDEX == 5
+ { 5, 5, 25, 26 },
+ { 5, 5, 60, 61 },
+ { 5, 5, 81, 78 },
+
+#elif CONFIG_CONS_INDEX == 6
+ { 6, 5, 27, 46 },
+ { 6, 5, 62, 63 },
+
+#elif CONFIG_CONS_INDEX == 7
+ { 7, 5, 57, 56 },
+ { 7, 5, 64, 65 },
+ { 7, 5, 87, 88 },
+
+#elif CONFIG_CONS_INDEX == 8
+ { 8, 5, 55, 54 },
+ { 8, 5, 66, 67 },
+ { 8, 5, 89, 90 },
+
+#elif CONFIG_CONS_INDEX == 9
+ { 9, 5, 53, 52 },
+ { 9, 5, 68, 69 },
+ { 9, 5, 85, 86 },
+
+#elif CONFIG_CONS_INDEX == 10
+ { 10, 5, 51, 50 },
+ { 10, 5, 70, 71 },
+ { 10, 5, 84, 82 },
+
+#elif CONFIG_CONS_INDEX == 11
+ { 11, 5, 49, 48 },
+ { 11, 5, 72, 73 },
+#endif /* CONFIG_CONS_INDEX */
+};
+
+#define UART2_RX 36
+#define UART2_TX 37
+#define AFUNC 2
+
+void lsmips_spl_serial_init(void)
+{
+#if defined(CONFIG_SPL_SERIAL)
+ int pin_rx, pin_tx;
+ int afunc;
+
+ if (CONFIG_CONS_PIN < ARRAY_SIZE(con)) {
+ pin_rx = con[CONFIG_CONS_PIN].rx;
+ pin_tx = con[CONFIG_CONS_PIN].tx;
+ afunc = con[CONFIG_CONS_PIN].af;
+ } else {
+ pin_rx = UART2_RX;
+ pin_tx = UART2_TX;
+ afunc = AFUNC;
+ }
+
+ gpio_set_alternate(pin_rx, afunc);
+ gpio_set_alternate(pin_tx, afunc);
+#endif /* CONFIG_SPL_SERIAL */
+ return;
+}
diff --git a/arch/mips/mach-lsmips/spl.c b/arch/mips/mach-lsmips/spl.c
new file mode 100644
index 0000000000..c7c28989f2
--- /dev/null
+++ b/arch/mips/mach-lsmips/spl.c
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2020 MediaTek Inc. All Rights Reserved.
+ *
+ * Author: Gao Weijie <weijie.gao at mediatek.com>
+ *
+ * Copyright (C) 2022 Du Huanpeng <dhu at hodcarrier.org>
+ */
+
+#include <common.h>
+#include <init.h>
+#include <spl.h>
+#include <asm/sections.h>
+#include <linux/libfdt.h>
+#include <linux/sizes.h>
+#include <mach/serial.h>
+
+void __noreturn board_init_f(ulong dummy)
+{
+ spl_init();
+
+#ifdef CONFIG_SPL_SERIAL
+ /*
+ * lsmips_spl_serial_init() is useful if debug uart is enabled,
+ * or DM based serial is not enabled.
+ */
+ lsmips_spl_serial_init();
+ preloader_console_init();
+#endif
+
+ board_init_r(NULL, 0);
+}
+
+void board_boot_order(u32 *spl_boot_list)
+{
+ spl_boot_list[0] = BOOT_DEVICE_NOR;
+}
+
+unsigned long spl_nor_get_uboot_base(void)
+{
+ void *uboot_base = __image_copy_end;
+
+ if (fdt_magic(uboot_base) == FDT_MAGIC)
+ return (unsigned long)uboot_base + fdt_totalsize(uboot_base);
+
+ return (unsigned long)uboot_base;
+}
diff --git a/include/configs/ls1c300.h b/include/configs/ls1c300.h
new file mode 100644
index 0000000000..4d07b07759
--- /dev/null
+++ b/include/configs/ls1c300.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2020 MediaTek Inc.
+ *
+ * Author: Gao Weijie <weijie.gao at mediatek.com>
+ * based on: include/configs/mt7628.h
+ * Copyright (C) 2022-2023 Du Huanpeng <dhu at hodcarrier.org>
+ */
+
+#ifndef __CONFIG_LS1C300_H__
+#define __CONFIG_LS1C300_H__
+
+#define CFG_SYS_SDRAM_BASE 0x80000000
+#define CFG_SYS_INIT_SP_OFFSET 0x2000
+
+/* Serial SPL */
+#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_SERIAL)
+#define CFG_SYS_NS16550_CLK 66000000
+#define CFG_SYS_NS16550_COM1 0xbfe44000
+#define CFG_SYS_NS16550_COM2 0xbfe48000
+#define CFG_SYS_NS16550_COM3 0xbfe4c000
+#define CFG_SYS_NS16550_COM4 0xbfe4c400
+#define CFG_SYS_NS16550_COM5 0xbfe4c500
+#define CFG_SYS_NS16550_COM6 0xbfe4c600
+#endif
+
+/* Serial common */
+#define CFG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600 }
+
+/* SPL */
+#define CFG_MALLOC_F_ADDR 0x80100000 /* FIXME: find a proper place */
+#define CFG_SYS_UBOOT_BASE 0xbd000000
+
+#endif /* __CONFIG_LS1C300_H__ */
--
2.34.1
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