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author | Albert ARIBAUD \(3ADEV\) <albert.aribaud@3adev.fr> | 2015-03-31 11:40:51 +0200 |
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committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2015-04-10 14:23:39 +0200 |
commit | 412ae53aadb53cd63e754d638bafe6e426aeafee (patch) | |
tree | 0bbf46fef21d002cc1a37b8f478e4b7a26c200d4 /board/work-microwave/work_92105/work_92105.c | |
parent | 8c80eb3b533c73a4b4a505fbaf925cdaafe0b5d2 (diff) | |
download | u-boot-imx-412ae53aadb53cd63e754d638bafe6e426aeafee.zip u-boot-imx-412ae53aadb53cd63e754d638bafe6e426aeafee.tar.gz u-boot-imx-412ae53aadb53cd63e754d638bafe6e426aeafee.tar.bz2 |
lpc32xx: add support for board work_92105
Work_92105 from Work Microwave is an LPC3250-
based board with the following features:
- 64MB or 128MB SDR DRAM
- 1 GB SLC NAND, managed through MLC controller.
- Ethernet
- Ethernet + PHY SMSC8710
- I2C:
- EEPROM (24M01-compatible)
- RTC (DS1374-compatible)
- Temperature sensor (DS620)
- DACs (2 x MAX518)
- SPI (through SSP interface)
- Port expander MAX6957
- LCD display (HD44780-compatible), controlled
through the port expander and DACs
This board has SPL support, and uses the LPC32XX boot
image format.
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
Diffstat (limited to 'board/work-microwave/work_92105/work_92105.c')
-rw-r--r-- | board/work-microwave/work_92105/work_92105.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/board/work-microwave/work_92105/work_92105.c b/board/work-microwave/work_92105/work_92105.c new file mode 100644 index 0000000..f782284 --- /dev/null +++ b/board/work-microwave/work_92105/work_92105.c @@ -0,0 +1,77 @@ +/* + * WORK Microwave work_92105 board support + * + * (C) Copyright 2014 DENX Software Engineering GmbH + * Written-by: Albert ARIBAUD <albert.aribaud@3adev.fr> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/cpu.h> +#include <asm/arch/clk.h> +#include <asm/arch/emc.h> +#include <asm/arch/wdt.h> +#include <asm/gpio.h> +#include <spl.h> +#include "work_92105_display.h" + +DECLARE_GLOBAL_DATA_PTR; + +static struct clk_pm_regs *clk = (struct clk_pm_regs *)CLK_PM_BASE; +static struct wdt_regs *wdt = (struct wdt_regs *)WDT_BASE; + +void reset_periph(void) +{ + setbits_le32(&clk->timclk_ctrl, CLK_TIMCLK_WATCHDOG); + writel(WDTIM_MCTRL_RESFRC1, &wdt->mctrl); + udelay(150); + writel(0, &wdt->mctrl); + clrbits_le32(&clk->timclk_ctrl, CLK_TIMCLK_WATCHDOG); +} + +int board_early_init_f(void) +{ + /* initialize serial port for console */ + lpc32xx_uart_init(CONFIG_SYS_LPC32XX_UART); + /* enable I2C, SSP, MAC, NAND */ + lpc32xx_i2c_init(1); /* only I2C1 has devices, I2C2 has none */ + lpc32xx_ssp_init(); + lpc32xx_mac_init(); + lpc32xx_mlc_nand_init(); + /* Display must wait until after relocation and devices init */ + return 0; +} + +#define GPO_19 115 + +int board_early_init_r(void) +{ + /* Set NAND !WP to 1 through GPO_19 */ + gpio_request(GPO_19, "NAND_nWP"); + gpio_direction_output(GPO_19, 1); + + /* initialize display */ + work_92105_display_init(); + + return 0; +} + +int board_init(void) +{ + reset_periph(); + /* adress of boot parameters */ + gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; + + return 0; +} + +int dram_init(void) +{ + gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, + CONFIG_SYS_SDRAM_SIZE); + + return 0; +} |