1 // SPDX-License-Identifier: GPL-2.0+
3 * Menlosystems M53Menlo board
5 * Copyright (C) 2012-2017 Marek Vasut <marex@denx.de>
6 * Copyright (C) 2014-2017 Olaf Mandel <o.mandel@menlosystems.com>
11 #include <asm/arch/imx-regs.h>
12 #include <asm/arch/sys_proto.h>
13 #include <asm/arch/crm_regs.h>
14 #include <asm/arch/clock.h>
15 #include <asm/arch/iomux-mx53.h>
16 #include <asm/mach-imx/mx5_video.h>
17 #include <asm/mach-imx/video.h>
20 #include <fdt_support.h>
21 #include <fsl_esdhc.h>
23 #include <ipu_pixfmt.h>
24 #include <linux/errno.h>
30 #include <usb/ehci-ci.h>
32 DECLARE_GLOBAL_DATA_PTR;
34 static u32 mx53_dram_size[2];
36 ulong board_get_usable_ram_top(ulong total_size)
39 * WARNING: We must override get_effective_memsize() function here
40 * to report only the size of the first DRAM bank. This is to make
41 * U-Boot relocator place U-Boot into valid memory, that is, at the
42 * end of the first DRAM bank. If we did not override this function
43 * like so, U-Boot would be placed at the address of the first DRAM
44 * bank + total DRAM size - sizeof(uboot), which in the setup where
45 * each DRAM bank contains 512MiB of DRAM would result in placing
46 * U-Boot into invalid memory area close to the end of the first
49 return PHYS_SDRAM_2 + mx53_dram_size[1];
54 mx53_dram_size[0] = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
55 mx53_dram_size[1] = get_ram_size((void *)PHYS_SDRAM_2, 1 << 30);
57 gd->ram_size = mx53_dram_size[0] + mx53_dram_size[1];
62 int dram_init_banksize(void)
64 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
65 gd->bd->bi_dram[0].size = mx53_dram_size[0];
67 gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
68 gd->bd->bi_dram[1].size = mx53_dram_size[1];
73 static void setup_iomux_uart(void)
75 static const iomux_v3_cfg_t uart_pads[] = {
76 MX53_PAD_PATA_DMACK__UART1_RXD_MUX,
77 MX53_PAD_PATA_DIOW__UART1_TXD_MUX,
80 imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
83 #ifdef CONFIG_USB_EHCI_MX5
84 int board_ehci_hcd_init(int port)
88 imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_4__GPIO1_4,
91 gpio_request(IMX_GPIO_NR(1, 4), "USB_OTG_PWRON");
92 gpio_direction_output(IMX_GPIO_NR(1, 4), 0);
94 /* USB OTG Over Current */
95 imx_iomux_v3_setup_pad(MX53_PAD_GPIO_18__GPIO7_13);
96 } else if (port == 1) {
98 imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_2__GPIO1_2,
101 gpio_request(IMX_GPIO_NR(1, 2), "USB_HOST_PWRON");
102 gpio_direction_output(IMX_GPIO_NR(1, 2), 0);
104 /* USB Host Over Current */
105 imx_iomux_v3_setup_pad(MX53_PAD_GPIO_3__USBOH3_USBH1_OC);
112 static void setup_iomux_fec(void)
114 static const iomux_v3_cfg_t fec_pads[] = {
116 NEW_PAD_CTRL(MX53_PAD_FEC_MDIO__FEC_MDIO, PAD_CTL_HYS |
117 PAD_CTL_DSE_HIGH | PAD_CTL_PUS_22K_UP | PAD_CTL_ODE),
118 NEW_PAD_CTRL(MX53_PAD_FEC_MDC__FEC_MDC, PAD_CTL_DSE_HIGH),
121 NEW_PAD_CTRL(MX53_PAD_FEC_CRS_DV__FEC_RX_DV,
122 PAD_CTL_HYS | PAD_CTL_PKE),
123 NEW_PAD_CTRL(MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,
124 PAD_CTL_HYS | PAD_CTL_PKE),
125 NEW_PAD_CTRL(MX53_PAD_FEC_RX_ER__FEC_RX_ER,
126 PAD_CTL_HYS | PAD_CTL_PKE),
127 NEW_PAD_CTRL(MX53_PAD_FEC_TX_EN__FEC_TX_EN, PAD_CTL_DSE_HIGH),
128 NEW_PAD_CTRL(MX53_PAD_FEC_RXD0__FEC_RDATA_0,
129 PAD_CTL_HYS | PAD_CTL_PKE),
130 NEW_PAD_CTRL(MX53_PAD_FEC_RXD1__FEC_RDATA_1,
131 PAD_CTL_HYS | PAD_CTL_PKE),
132 NEW_PAD_CTRL(MX53_PAD_FEC_TXD0__FEC_TDATA_0, PAD_CTL_DSE_HIGH),
133 NEW_PAD_CTRL(MX53_PAD_FEC_TXD1__FEC_TDATA_1, PAD_CTL_DSE_HIGH),
136 NEW_PAD_CTRL(MX53_PAD_KEY_COL0__FEC_RDATA_3,
137 PAD_CTL_HYS | PAD_CTL_PKE),
138 NEW_PAD_CTRL(MX53_PAD_KEY_ROW0__FEC_TX_ER,
139 PAD_CTL_HYS | PAD_CTL_PKE),
140 NEW_PAD_CTRL(MX53_PAD_KEY_COL1__FEC_RX_CLK,
141 PAD_CTL_HYS | PAD_CTL_PKE),
142 NEW_PAD_CTRL(MX53_PAD_KEY_ROW1__FEC_COL,
143 PAD_CTL_HYS | PAD_CTL_PKE),
144 NEW_PAD_CTRL(MX53_PAD_KEY_COL2__FEC_RDATA_2,
145 PAD_CTL_HYS | PAD_CTL_PKE),
146 NEW_PAD_CTRL(MX53_PAD_KEY_ROW2__FEC_TDATA_2, PAD_CTL_DSE_HIGH),
147 NEW_PAD_CTRL(MX53_PAD_KEY_COL3__FEC_CRS,
148 PAD_CTL_HYS | PAD_CTL_PKE),
149 NEW_PAD_CTRL(MX53_PAD_GPIO_19__FEC_TDATA_3, PAD_CTL_DSE_HIGH),
152 imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
155 #ifdef CONFIG_FSL_ESDHC
156 struct fsl_esdhc_cfg esdhc_cfg = {
160 int board_mmc_getcd(struct mmc *mmc)
162 imx_iomux_v3_setup_pad(MX53_PAD_GPIO_1__GPIO1_1);
163 gpio_direction_input(IMX_GPIO_NR(1, 1));
165 return !gpio_get_value(IMX_GPIO_NR(1, 1));
168 #define SD_CMD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
170 #define SD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \
173 int board_mmc_init(bd_t *bis)
175 static const iomux_v3_cfg_t sd1_pads[] = {
176 NEW_PAD_CTRL(MX53_PAD_SD1_CMD__ESDHC1_CMD, SD_CMD_PAD_CTRL),
177 NEW_PAD_CTRL(MX53_PAD_SD1_CLK__ESDHC1_CLK, SD_PAD_CTRL),
178 NEW_PAD_CTRL(MX53_PAD_SD1_DATA0__ESDHC1_DAT0, SD_PAD_CTRL),
179 NEW_PAD_CTRL(MX53_PAD_SD1_DATA1__ESDHC1_DAT1, SD_PAD_CTRL),
180 NEW_PAD_CTRL(MX53_PAD_SD1_DATA2__ESDHC1_DAT2, SD_PAD_CTRL),
181 NEW_PAD_CTRL(MX53_PAD_SD1_DATA3__ESDHC1_DAT3, SD_PAD_CTRL),
184 esdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
186 imx_iomux_v3_setup_multiple_pads(sd1_pads, ARRAY_SIZE(sd1_pads));
188 return fsl_esdhc_initialize(bis, &esdhc_cfg);
193 static void enable_lvds_clock(struct display_info_t const *dev, const u8 hclk)
195 static struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)MXC_CCM_BASE;
198 /* For ETM0430G0DH6 model, this must be enabled before the clock. */
199 gpio_direction_output(IMX_GPIO_NR(6, 0), 1);
202 * Set LVDS clock to 33.28 MHz for the display. The PLL4 is set to
203 * 233 MHz, divided by 7 by setting CCM_CSCMR2 LDB_DI0_IPU_DIV=1 .
205 ret = mxc_set_clock(MXC_HCLK, hclk, MXC_LDB_CLK);
207 puts("IPU: Failed to configure LDB clock\n");
209 /* Configure CCM_CSCMR2 */
210 clrsetbits_le32(&mxc_ccm->cscmr2,
211 (0x7 << 26) | BIT(10) | BIT(8),
212 (0x5 << 26) | BIT(10) | BIT(8));
214 /* Configure LDB_CTRL */
215 writel(0x201, 0x53fa8008);
218 static void enable_lvds_etm0430g0dh6(struct display_info_t const *dev)
220 gpio_request(IMX_GPIO_NR(6, 0), "LCD");
222 /* For ETM0430G0DH6 model, this must be enabled before the clock. */
223 gpio_direction_output(IMX_GPIO_NR(6, 0), 1);
226 * Set LVDS clock to 9 MHz for the display. The PLL4 is set to
227 * 63 MHz, divided by 7 by setting CCM_CSCMR2 LDB_DI0_IPU_DIV=1 .
229 enable_lvds_clock(dev, 63);
232 static void enable_lvds_etm0700g0dh6(struct display_info_t const *dev)
234 gpio_request(IMX_GPIO_NR(6, 0), "LCD");
237 * Set LVDS clock to 33.28 MHz for the display. The PLL4 is set to
238 * 233 MHz, divided by 7 by setting CCM_CSCMR2 LDB_DI0_IPU_DIV=1 .
240 enable_lvds_clock(dev, 233);
242 /* For ETM0700G0DH6 model, this may be enabled after the clock. */
243 gpio_direction_output(IMX_GPIO_NR(6, 0), 1);
246 static const char *lvds_compat_string;
248 static int detect_lvds(struct display_info_t const *dev)
251 u8 *touchptr = &touchid[0];
254 ret = i2c_set_bus_num(0);
258 /* Touchscreen is at address 0x38, ID register is 0xbb. */
259 ret = i2c_read(0x38, 0xbb, 1, touchid, sizeof(touchid));
263 /* EP0430 prefixes the response with 0xbb, skip it. */
264 if (*touchptr == 0xbb)
267 /* Skip the 'EP' prefix. */
270 ret = !memcmp(touchptr, &dev->mode.name[7], 4);
272 lvds_compat_string = dev->mode.name;
277 void board_preboot_os(void)
279 /* Power off the LCD to prevent awful color flicker */
280 gpio_direction_output(IMX_GPIO_NR(6, 0), 0);
283 int ft_board_setup(void *blob, bd_t *bd)
285 if (lvds_compat_string)
286 do_fixup_by_path_string(blob, "/panel", "compatible",
292 struct display_info_t const displays[] = {
296 .detect = detect_lvds,
297 .enable = enable_lvds_etm0430g0dh6,
298 .pixfmt = IPU_PIX_FMT_RGB666,
300 .name = "edt,etm0430g0dh6",
304 .pixclock = 111111, /* picosecond (9 MHz) */
312 .vmode = FB_VMODE_NONINTERLACED
317 .detect = detect_lvds,
318 .enable = enable_lvds_etm0700g0dh6,
319 .pixfmt = IPU_PIX_FMT_RGB666,
321 .name = "edt,etm0700g0dh6",
325 .pixclock = 30048, /* picosecond (33.28 MHz) */
333 .vmode = FB_VMODE_NONINTERLACED
338 size_t display_count = ARRAY_SIZE(displays);
341 #ifdef CONFIG_SPLASH_SCREEN
342 static struct splash_location default_splash_locations[] = {
345 .storage = SPLASH_STORAGE_MMC,
346 .flags = SPLASH_STORAGE_FS,
351 int splash_screen_prepare(void)
353 return splash_source_load(default_splash_locations,
354 ARRAY_SIZE(default_splash_locations));
358 #define I2C_PAD_CTRL (PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | \
359 PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
361 static void setup_iomux_i2c(void)
363 static const iomux_v3_cfg_t i2c_pads[] = {
365 NEW_PAD_CTRL(MX53_PAD_EIM_D28__I2C1_SDA, I2C_PAD_CTRL),
366 NEW_PAD_CTRL(MX53_PAD_EIM_D21__I2C1_SCL, I2C_PAD_CTRL),
368 NEW_PAD_CTRL(MX53_PAD_EIM_D16__I2C2_SDA, I2C_PAD_CTRL),
369 NEW_PAD_CTRL(MX53_PAD_EIM_EB2__I2C2_SCL, I2C_PAD_CTRL),
372 imx_iomux_v3_setup_multiple_pads(i2c_pads, ARRAY_SIZE(i2c_pads));
375 static void setup_iomux_video(void)
377 static const iomux_v3_cfg_t lcd_pads[] = {
378 MX53_PAD_LVDS0_TX3_P__LDB_LVDS0_TX3,
379 MX53_PAD_LVDS0_CLK_P__LDB_LVDS0_CLK,
380 MX53_PAD_LVDS0_TX2_P__LDB_LVDS0_TX2,
381 MX53_PAD_LVDS0_TX1_P__LDB_LVDS0_TX1,
382 MX53_PAD_LVDS0_TX0_P__LDB_LVDS0_TX0,
385 imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
388 static void setup_iomux_nand(void)
390 static const iomux_v3_cfg_t nand_pads[] = {
391 NEW_PAD_CTRL(MX53_PAD_NANDF_WE_B__EMI_NANDF_WE_B,
393 NEW_PAD_CTRL(MX53_PAD_NANDF_RE_B__EMI_NANDF_RE_B,
395 NEW_PAD_CTRL(MX53_PAD_NANDF_CLE__EMI_NANDF_CLE,
397 NEW_PAD_CTRL(MX53_PAD_NANDF_ALE__EMI_NANDF_ALE,
399 NEW_PAD_CTRL(MX53_PAD_NANDF_WP_B__EMI_NANDF_WP_B,
400 PAD_CTL_PUS_100K_UP),
401 NEW_PAD_CTRL(MX53_PAD_NANDF_RB0__EMI_NANDF_RB_0,
402 PAD_CTL_PUS_100K_UP),
403 NEW_PAD_CTRL(MX53_PAD_NANDF_CS0__EMI_NANDF_CS_0,
405 NEW_PAD_CTRL(MX53_PAD_PATA_DATA0__EMI_NANDF_D_0,
406 PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
407 NEW_PAD_CTRL(MX53_PAD_PATA_DATA1__EMI_NANDF_D_1,
408 PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
409 NEW_PAD_CTRL(MX53_PAD_PATA_DATA2__EMI_NANDF_D_2,
410 PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
411 NEW_PAD_CTRL(MX53_PAD_PATA_DATA3__EMI_NANDF_D_3,
412 PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
413 NEW_PAD_CTRL(MX53_PAD_PATA_DATA4__EMI_NANDF_D_4,
414 PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
415 NEW_PAD_CTRL(MX53_PAD_PATA_DATA5__EMI_NANDF_D_5,
416 PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
417 NEW_PAD_CTRL(MX53_PAD_PATA_DATA6__EMI_NANDF_D_6,
418 PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
419 NEW_PAD_CTRL(MX53_PAD_PATA_DATA7__EMI_NANDF_D_7,
420 PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
423 imx_iomux_v3_setup_multiple_pads(nand_pads, ARRAY_SIZE(nand_pads));
426 static void m53_set_clock(void)
429 const u32 ref_clk = MXC_HCLK;
430 const u32 dramclk = 400;
433 gpio_request(IMX_GPIO_NR(4, 0), "CPUCLK");
435 imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_10__GPIO4_0,
436 PAD_CTL_DSE_HIGH | PAD_CTL_PKE));
437 gpio_direction_input(IMX_GPIO_NR(4, 0));
439 /* GPIO10 selects modules' CPU speed, 1 = 1200MHz ; 0 = 800MHz */
440 cpuclk = gpio_get_value(IMX_GPIO_NR(4, 0)) ? 1200 : 800;
442 ret = mxc_set_clock(ref_clk, cpuclk, MXC_ARM_CLK);
444 printf("CPU: Switch CPU clock to %dMHz failed\n", cpuclk);
446 ret = mxc_set_clock(ref_clk, dramclk, MXC_PERIPH_CLK);
448 printf("CPU: Switch peripheral clock to %dMHz failed\n",
452 ret = mxc_set_clock(ref_clk, dramclk, MXC_DDR_CLK);
454 printf("CPU: Switch DDR clock to %dMHz failed\n", dramclk);
457 static void m53_set_nand(void)
461 /* NAND flash is muxed on ATA pins */
462 setbits_le32(M4IF_BASE_ADDR + 0xc, M4IF_GENP_WEIM_MM_MASK);
464 /* Wait for Grant/Ack sequence (see EIM_CSnGCR2:MUX16_BYP_GRANT) */
465 for (i = 0x4; i < 0x94; i += 0x18) {
466 clrbits_le32(WEIM_BASE_ADDR + i,
467 WEIM_GCR2_MUX16_BYP_GRANT_MASK);
470 mxc_set_clock(0, 33, MXC_NFC_CLK);
474 int board_early_init_f(void)
484 mxc_set_sata_internal_clock();
486 /* NAND clock @ 33MHz */
494 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
501 puts("Board: Menlosystems M53Menlo\n");
509 #ifdef CONFIG_SPL_BUILD
510 void spl_board_init(void)
517 u32 spl_boot_device(void)
519 return BOOT_DEVICE_NAND;