--- /dev/null
+/*
+ * Creative ZEN X-Fi3 board
+ *
+ * Copyright (C) 2013 Marek Vasut <marex@denx.de>
+ *
+ * Hardware investigation done by:
+ *
+ * Amaury Pouly <amaury.pouly@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <asm/arch/iomux-mx23.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/sys_proto.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Functions
+ */
+int board_early_init_f(void)
+{
+ /* IO0 clock at 480MHz */
+ mxs_set_ioclk(MXC_IOCLK0, 480000);
+
+ /* SSP0 clock at 96MHz */
+ mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
+
+ return 0;
+}
+
+int dram_init(void)
+{
+ return mxs_dram_init();
+}
+
+#ifdef CONFIG_CMD_MMC
+static int xfi3_mmc_cd(int id)
+{
+ switch (id) {
+ case 0:
+ /* The SSP_DETECT is inverted on this board. */
+ return gpio_get_value(MX23_PAD_SSP1_DETECT__GPIO_2_1);
+ case 1:
+ /* Phison bridge always present */
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+int board_mmc_init(bd_t *bis)
+{
+ int ret;
+
+ /* MicroSD slot */
+ gpio_direction_input(MX23_PAD_SSP1_DETECT__GPIO_2_1);
+ gpio_direction_output(MX23_PAD_GPMI_D07__GPIO_0_7, 0);
+ ret = mxsmmc_initialize(bis, 0, NULL, xfi3_mmc_cd);
+ if (ret)
+ return ret;
+
+ /* Phison SD-NAND bridge */
+ ret = mxsmmc_initialize(bis, 1, NULL, xfi3_mmc_cd);
+
+ return ret;
+}
+#endif
+
+#ifdef CONFIG_VIDEO_MXS
+static int mxsfb_write_byte(uint32_t payload, const unsigned int data)
+{
+ struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)MXS_LCDIF_BASE;
+ const unsigned int timeout = 0x10000;
+
+ if (mxs_wait_mask_clr(®s->hw_lcdif_ctrl_reg, LCDIF_CTRL_RUN,
+ timeout))
+ return -ETIMEDOUT;
+
+ writel((1 << LCDIF_TRANSFER_COUNT_V_COUNT_OFFSET) |
+ (1 << LCDIF_TRANSFER_COUNT_H_COUNT_OFFSET),
+ ®s->hw_lcdif_transfer_count);
+
+ writel(LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_RUN,
+ ®s->hw_lcdif_ctrl_clr);
+
+ if (data)
+ writel(LCDIF_CTRL_DATA_SELECT, ®s->hw_lcdif_ctrl_set);
+
+ writel(LCDIF_CTRL_RUN, ®s->hw_lcdif_ctrl_set);
+
+ if (mxs_wait_mask_clr(®s->hw_lcdif_lcdif_stat_reg, 1 << 29,
+ timeout))
+ return -ETIMEDOUT;
+
+ writel(payload, ®s->hw_lcdif_data);
+ return mxs_wait_mask_clr(®s->hw_lcdif_ctrl_reg, LCDIF_CTRL_RUN,
+ timeout);
+}
+
+static void mxsfb_write_register(uint32_t reg, uint32_t data)
+{
+ mxsfb_write_byte(reg, 0);
+ mxsfb_write_byte(data, 1);
+}
+
+static const struct {
+ uint8_t reg;
+ uint8_t delay;
+ uint16_t val;
+} lcd_regs[] = {
+ { 0x01, 0, 0x001c },
+ { 0x02, 0, 0x0100 },
+ /* Writing 0x30 to reg. 0x03 flips the LCD */
+ { 0x03, 0, 0x1038 },
+ { 0x08, 0, 0x0808 },
+ /* This can contain 0x111 to rotate the LCD. */
+ { 0x0c, 0, 0x0000 },
+ { 0x0f, 0, 0x0c01 },
+ { 0x20, 0, 0x0000 },
+ { 0x21, 30, 0x0000 },
+ /* Wait 30 mS here */
+ { 0x10, 0, 0x0a00 },
+ { 0x11, 30, 0x1038 },
+ /* Wait 30 mS here */
+ { 0x12, 0, 0x1010 },
+ { 0x13, 0, 0x0050 },
+ { 0x14, 0, 0x4f58 },
+ { 0x30, 0, 0x0000 },
+ { 0x31, 0, 0x00db },
+ { 0x32, 0, 0x0000 },
+ { 0x33, 0, 0x0000 },
+ { 0x34, 0, 0x00db },
+ { 0x35, 0, 0x0000 },
+ { 0x36, 0, 0x00af },
+ { 0x37, 0, 0x0000 },
+ { 0x38, 0, 0x00db },
+ { 0x39, 0, 0x0000 },
+ { 0x50, 0, 0x0000 },
+ { 0x51, 0, 0x0705 },
+ { 0x52, 0, 0x0e0a },
+ { 0x53, 0, 0x0300 },
+ { 0x54, 0, 0x0a0e },
+ { 0x55, 0, 0x0507 },
+ { 0x56, 0, 0x0000 },
+ { 0x57, 0, 0x0003 },
+ { 0x58, 0, 0x090a },
+ { 0x59, 30, 0x0a09 },
+ /* Wait 30 mS here */
+ { 0x07, 30, 0x1017 },
+ /* Wait 40 mS here */
+ { 0x36, 0, 0x00af },
+ { 0x37, 0, 0x0000 },
+ { 0x38, 0, 0x00db },
+ { 0x39, 0, 0x0000 },
+ { 0x20, 0, 0x0000 },
+ { 0x21, 0, 0x0000 },
+};
+
+void board_mxsfb_system_setup(void)
+{
+ struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)MXS_LCDIF_BASE;
+ int i;
+
+ /* Switch the LCDIF into System-Mode */
+ writel(LCDIF_CTRL_LCDIF_MASTER | LCDIF_CTRL_DOTCLK_MODE |
+ LCDIF_CTRL_BYPASS_COUNT, ®s->hw_lcdif_ctrl_clr);
+
+ /* Restart the SmartLCD controller */
+ mdelay(50);
+ writel(1, ®s->hw_lcdif_ctrl1_set);
+ mdelay(50);
+ writel(1, ®s->hw_lcdif_ctrl1_clr);
+ mdelay(50);
+ writel(1, ®s->hw_lcdif_ctrl1_set);
+ mdelay(50);
+
+ /* Program the SmartLCD controller */
+ writel(LCDIF_CTRL1_RECOVER_ON_UNDERFLOW, ®s->hw_lcdif_ctrl1_set);
+
+ writel((0x03 << LCDIF_TIMING_CMD_HOLD_OFFSET) |
+ (0x03 << LCDIF_TIMING_CMD_SETUP_OFFSET) |
+ (0x03 << LCDIF_TIMING_DATA_HOLD_OFFSET) |
+ (0x02 << LCDIF_TIMING_DATA_SETUP_OFFSET),
+ ®s->hw_lcdif_timing);
+
+ /*
+ * OTM2201A init and configuration sequence.
+ */
+ for (i = 0; i < ARRAY_SIZE(lcd_regs); i++) {
+ mxsfb_write_register(lcd_regs[i].reg, lcd_regs[i].val);
+ if (lcd_regs[i].delay)
+ mdelay(lcd_regs[i].delay);
+ }
+ /* Turn on Framebuffer Upload Mode */
+ mxsfb_write_byte(0x22, 0);
+
+ writel(LCDIF_CTRL_LCDIF_MASTER | LCDIF_CTRL_DATA_SELECT,
+ ®s->hw_lcdif_ctrl_set);
+}
+#endif
+
+int board_init(void)
+{
+ /* Adress of boot parameters */
+ gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+ /* Turn on PWM backlight */
+ gpio_direction_output(MX23_PAD_PWM2__GPIO_1_28, 1);
+
+ return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+ usb_eth_initialize(bis);
+ return 0;
+}
Code Review / kvmfornfv.git / blobdiff