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>

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 0000000000..f782284d60
--- /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;
+}