--- /dev/null
+/*
+ * Copyright (C) 2009 Freescale Semiconductor, Inc.
+ * Copyright (C) 2010 Marek Vasut <marek.vasut@gmail.com>
+ * Copyright (C) 2009-2012 Genesi USA, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/iomux-mx51.h>
+#include <asm/gpio.h>
+#include <asm/errno.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/clock.h>
+#include <i2c.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+#include <power/pmic.h>
+#include <fsl_pmic.h>
+#include <mc13892.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Compile-time error checking
+ */
+#ifndef CONFIG_MXC_SPI
+#error "CONFIG_MXC_SPI not set, this is essential for board's operation!"
+#endif
+
+/*
+ * Board revisions
+ *
+ * Note that we get these revisions here for convenience, but we only set
+ * up for the production model Smarttop (1.3) and Smartbook (2.0).
+ *
+ */
+#define EFIKAMX_BOARD_REV_11 0x1
+#define EFIKAMX_BOARD_REV_12 0x2
+#define EFIKAMX_BOARD_REV_13 0x3
+#define EFIKAMX_BOARD_REV_14 0x4
+
+#define EFIKASB_BOARD_REV_13 0x1
+#define EFIKASB_BOARD_REV_20 0x2
+
+/*
+ * Board identification
+ */
+static u32 get_mx_rev(void)
+{
+ u32 rev = 0;
+ /*
+ * Retrieve board ID:
+ *
+ * gpio: 16 17 11
+ * ==============
+ * r1.1: 1+ 1 1
+ * r1.2: 1 1 0
+ * r1.3: 1 0 1
+ * r1.4: 1 0 0
+ *
+ * + note: r1.1 does not strap this pin properly so it needs to
+ * be hacked or ignored.
+ */
+
+ /* set to 1 in order to get correct value on board rev 1.1 */
+ gpio_direction_output(IMX_GPIO_NR(3, 16), 1);
+ gpio_direction_input(IMX_GPIO_NR(3, 11));
+ gpio_direction_input(IMX_GPIO_NR(3, 16));
+ gpio_direction_input(IMX_GPIO_NR(3, 17));
+
+ rev |= (!!gpio_get_value(IMX_GPIO_NR(3, 16))) << 0;
+ rev |= (!!gpio_get_value(IMX_GPIO_NR(3, 17))) << 1;
+ rev |= (!!gpio_get_value(IMX_GPIO_NR(3, 11))) << 2;
+
+ return (~rev & 0x7) + 1;
+}
+
+static iomux_v3_cfg_t const efikasb_revision_pads[] = {
+ MX51_PAD_EIM_CS3__GPIO2_28,
+ MX51_PAD_EIM_CS4__GPIO2_29,
+};
+
+static inline u32 get_sb_rev(void)
+{
+ u32 rev = 0;
+
+ imx_iomux_v3_setup_multiple_pads(efikasb_revision_pads,
+ ARRAY_SIZE(efikasb_revision_pads));
+ gpio_direction_input(IMX_GPIO_NR(2, 28));
+ gpio_direction_input(IMX_GPIO_NR(2, 29));
+
+ rev |= (!!gpio_get_value(IMX_GPIO_NR(2, 28))) << 0;
+ rev |= (!!gpio_get_value(IMX_GPIO_NR(2, 29))) << 1;
+
+ return rev;
+}
+
+inline uint32_t get_efikamx_rev(void)
+{
+ if (machine_is_efikamx())
+ return get_mx_rev();
+ else if (machine_is_efikasb())
+ return get_sb_rev();
+}
+
+u32 get_board_rev(void)
+{
+ return get_cpu_rev() | (get_efikamx_rev() << 8);
+}
+
+/*
+ * DRAM initialization
+ */
+int dram_init(void)
+{
+ /* dram_init must store complete ramsize in gd->ram_size */
+ gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
+ PHYS_SDRAM_1_SIZE);
+ return 0;
+}
+
+/*
+ * UART configuration
+ */
+static iomux_v3_cfg_t const efikamx_uart_pads[] = {
+ MX51_PAD_UART1_RXD__UART1_RXD,
+ MX51_PAD_UART1_TXD__UART1_TXD,
+ MX51_PAD_UART1_RTS__UART1_RTS,
+ MX51_PAD_UART1_CTS__UART1_CTS,
+};
+
+/*
+ * SPI configuration
+ */
+static iomux_v3_cfg_t const efikamx_spi_pads[] = {
+ MX51_PAD_CSPI1_MOSI__ECSPI1_MOSI,
+ MX51_PAD_CSPI1_MISO__ECSPI1_MISO,
+ MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK,
+ MX51_PAD_CSPI1_SS0__GPIO4_24,
+ MX51_PAD_CSPI1_SS1__GPIO4_25,
+ MX51_PAD_GPIO1_6__GPIO1_6,
+};
+
+#define EFIKAMX_SPI_SS0 IMX_GPIO_NR(4, 24)
+#define EFIKAMX_SPI_SS1 IMX_GPIO_NR(4, 25)
+#define EFIKAMX_PMIC_IRQ IMX_GPIO_NR(1, 6)
+
+/*
+ * PMIC configuration
+ */
+#ifdef CONFIG_MXC_SPI
+static void power_init(void)
+{
+ unsigned int val;
+ struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)MXC_CCM_BASE;
+ struct pmic *p;
+ int ret;
+
+ ret = pmic_init(CONFIG_FSL_PMIC_BUS);
+ if (ret)
+ return;
+
+ p = pmic_get("FSL_PMIC");
+ if (!p)
+ return;
+
+ /* Write needed to Power Gate 2 register */
+ pmic_reg_read(p, REG_POWER_MISC, &val);
+ val &= ~PWGT2SPIEN;
+ pmic_reg_write(p, REG_POWER_MISC, val);
+
+ /* Externally powered */
+ pmic_reg_read(p, REG_CHARGE, &val);
+ val |= ICHRG0 | ICHRG1 | ICHRG2 | ICHRG3 | CHGAUTOB;
+ pmic_reg_write(p, REG_CHARGE, val);
+
+ /* power up the system first */
+ pmic_reg_write(p, REG_POWER_MISC, PWUP);
+
+ /* Set core voltage to 1.1V */
+ pmic_reg_read(p, REG_SW_0, &val);
+ val = (val & ~SWx_VOLT_MASK) | SWx_1_100V;
+ pmic_reg_write(p, REG_SW_0, val);
+
+ /* Setup VCC (SW2) to 1.25 */
+ pmic_reg_read(p, REG_SW_1, &val);
+ val = (val & ~SWx_VOLT_MASK) | SWx_1_250V;
+ pmic_reg_write(p, REG_SW_1, val);
+
+ /* Setup 1V2_DIG1 (SW3) to 1.25 */
+ pmic_reg_read(p, REG_SW_2, &val);
+ val = (val & ~SWx_VOLT_MASK) | SWx_1_250V;
+ pmic_reg_write(p, REG_SW_2, val);
+ udelay(50);
+
+ /* Raise the core frequency to 800MHz */
+ writel(0x0, &mxc_ccm->cacrr);
+
+ /* Set switchers in Auto in NORMAL mode & STANDBY mode */
+ /* Setup the switcher mode for SW1 & SW2*/
+ pmic_reg_read(p, REG_SW_4, &val);
+ val = (val & ~((SWMODE_MASK << SWMODE1_SHIFT) |
+ (SWMODE_MASK << SWMODE2_SHIFT)));
+ val |= (SWMODE_AUTO_AUTO << SWMODE1_SHIFT) |
+ (SWMODE_AUTO_AUTO << SWMODE2_SHIFT);
+ pmic_reg_write(p, REG_SW_4, val);
+
+ /* Setup the switcher mode for SW3 & SW4 */
+ pmic_reg_read(p, REG_SW_5, &val);
+ val = (val & ~((SWMODE_MASK << SWMODE3_SHIFT) |
+ (SWMODE_MASK << SWMODE4_SHIFT)));
+ val |= (SWMODE_AUTO_AUTO << SWMODE3_SHIFT) |
+ (SWMODE_AUTO_AUTO << SWMODE4_SHIFT);
+ pmic_reg_write(p, REG_SW_5, val);
+
+ /* Set VDIG to 1.8V, VGEN3 to 1.8V, VCAM to 2.6V */
+ pmic_reg_read(p, REG_SETTING_0, &val);
+ val &= ~(VCAM_MASK | VGEN3_MASK | VDIG_MASK);
+ val |= VDIG_1_8 | VGEN3_1_8 | VCAM_2_6;
+ pmic_reg_write(p, REG_SETTING_0, val);
+
+ /* Set VVIDEO to 2.775V, VAUDIO to 3V, VSD to 3.15V */
+ pmic_reg_read(p, REG_SETTING_1, &val);
+ val &= ~(VVIDEO_MASK | VSD_MASK | VAUDIO_MASK);
+ val |= VSD_3_15 | VAUDIO_3_0 | VVIDEO_2_775 | VGEN1_1_2 | VGEN2_3_15;
+ pmic_reg_write(p, REG_SETTING_1, val);
+
+ /* Enable VGEN1, VGEN2, VDIG, VPLL */
+ pmic_reg_read(p, REG_MODE_0, &val);
+ val |= VGEN1EN | VDIGEN | VGEN2EN | VPLLEN;
+ pmic_reg_write(p, REG_MODE_0, val);
+
+ /* Configure VGEN3 and VCAM regulators to use external PNP */
+ val = VGEN3CONFIG | VCAMCONFIG;
+ pmic_reg_write(p, REG_MODE_1, val);
+ udelay(200);
+
+ /* Enable VGEN3, VCAM, VAUDIO, VVIDEO, VSD regulators */
+ val = VGEN3EN | VGEN3CONFIG | VCAMEN | VCAMCONFIG |
+ VVIDEOEN | VAUDIOEN | VSDEN;
+ pmic_reg_write(p, REG_MODE_1, val);
+
+ pmic_reg_read(p, REG_POWER_CTL2, &val);
+ val |= WDIRESET;
+ pmic_reg_write(p, REG_POWER_CTL2, val);
+
+ udelay(2500);
+}
+#else
+static inline void power_init(void) { }
+#endif
+
+/*
+ * MMC configuration
+ */
+#ifdef CONFIG_FSL_ESDHC
+
+struct fsl_esdhc_cfg esdhc_cfg[2] = {
+ {MMC_SDHC1_BASE_ADDR},
+ {MMC_SDHC2_BASE_ADDR},
+};
+
+static iomux_v3_cfg_t const efikamx_sdhc1_pads[] = {
+ MX51_PAD_SD1_CMD__SD1_CMD,
+ MX51_PAD_SD1_CLK__SD1_CLK,
+ MX51_PAD_SD1_DATA0__SD1_DATA0,
+ MX51_PAD_SD1_DATA1__SD1_DATA1,
+ MX51_PAD_SD1_DATA2__SD1_DATA2,
+ MX51_PAD_SD1_DATA3__SD1_DATA3,
+ MX51_PAD_GPIO1_1__SD1_WP,
+};
+
+#define EFIKAMX_SDHC1_WP IMX_GPIO_NR(1, 1)
+
+static iomux_v3_cfg_t const efikamx_sdhc1_cd_pads[] = {
+ MX51_PAD_GPIO1_0__SD1_CD,
+ NEW_PAD_CTRL(MX51_PAD_EIM_CS2__GPIO2_27, MX51_ESDHC_PAD_CTRL),
+};
+
+#define EFIKAMX_SDHC1_CD IMX_GPIO_NR(1, 0)
+#define EFIKASB_SDHC1_CD IMX_GPIO_NR(2, 27)
+
+static iomux_v3_cfg_t const efikasb_sdhc2_pads[] = {
+ MX51_PAD_SD2_CMD__SD2_CMD,
+ MX51_PAD_SD2_CLK__SD2_CLK,
+ MX51_PAD_SD2_DATA0__SD2_DATA0,
+ MX51_PAD_SD2_DATA1__SD2_DATA1,
+ MX51_PAD_SD2_DATA2__SD2_DATA2,
+ MX51_PAD_SD2_DATA3__SD2_DATA3,
+ MX51_PAD_GPIO1_7__SD2_WP,
+ MX51_PAD_GPIO1_8__SD2_CD,
+};
+
+#define EFIKASB_SDHC2_CD IMX_GPIO_NR(1, 8)
+#define EFIKASB_SDHC2_WP IMX_GPIO_NR(1, 7)
+
+static inline uint32_t efikamx_mmc_getcd(u32 base)
+{
+ if (base == MMC_SDHC1_BASE_ADDR)
+ if (machine_is_efikamx())
+ return EFIKAMX_SDHC1_CD;
+ else
+ return EFIKASB_SDHC1_CD;
+ else
+ return EFIKASB_SDHC2_CD;
+}
+
+int board_mmc_getcd(struct mmc *mmc)
+{
+ struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+ uint32_t cd = efikamx_mmc_getcd(cfg->esdhc_base);
+ int ret = !gpio_get_value(cd);
+
+ return ret;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+ int ret;
+
+ /*
+ * All Efika MX boards use eSDHC1 with a common write-protect GPIO
+ */
+ imx_iomux_v3_setup_multiple_pads(efikamx_sdhc1_pads,
+ ARRAY_SIZE(efikamx_sdhc1_pads));
+ gpio_direction_input(EFIKAMX_SDHC1_WP);
+
+ /*
+ * Smartbook and Smarttop differ on the location of eSDHC1
+ * carrier-detect GPIO
+ */
+ if (machine_is_efikamx()) {
+ imx_iomux_v3_setup_pad(efikamx_sdhc1_cd_pads[0]);
+ gpio_direction_input(EFIKAMX_SDHC1_CD);
+ } else if (machine_is_efikasb()) {
+ imx_iomux_v3_setup_pad(efikamx_sdhc1_cd_pads[1]);
+ gpio_direction_input(EFIKASB_SDHC1_CD);
+ }
+
+ esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
+ esdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
+
+ ret = fsl_esdhc_initialize(bis, &esdhc_cfg[0]);
+
+ if (machine_is_efikasb()) {
+
+ imx_iomux_v3_setup_multiple_pads(efikasb_sdhc2_pads,
+ ARRAY_SIZE(efikasb_sdhc2_pads));
+ gpio_direction_input(EFIKASB_SDHC2_CD);
+ gpio_direction_input(EFIKASB_SDHC2_WP);
+ if (!ret)
+ ret = fsl_esdhc_initialize(bis, &esdhc_cfg[1]);
+ }
+
+ return ret;
+}
+#endif
+
+/*
+ * PATA
+ */
+static iomux_v3_cfg_t const efikamx_pata_pads[] = {
+ MX51_PAD_NANDF_WE_B__PATA_DIOW,
+ MX51_PAD_NANDF_RE_B__PATA_DIOR,
+ MX51_PAD_NANDF_ALE__PATA_BUFFER_EN,
+ MX51_PAD_NANDF_CLE__PATA_RESET_B,
+ MX51_PAD_NANDF_WP_B__PATA_DMACK,
+ MX51_PAD_NANDF_RB0__PATA_DMARQ,
+ MX51_PAD_NANDF_RB1__PATA_IORDY,
+ MX51_PAD_GPIO_NAND__PATA_INTRQ,
+ MX51_PAD_NANDF_CS2__PATA_CS_0,
+ MX51_PAD_NANDF_CS3__PATA_CS_1,
+ MX51_PAD_NANDF_CS4__PATA_DA_0,
+ MX51_PAD_NANDF_CS5__PATA_DA_1,
+ MX51_PAD_NANDF_CS6__PATA_DA_2,
+ MX51_PAD_NANDF_D15__PATA_DATA15,
+ MX51_PAD_NANDF_D14__PATA_DATA14,
+ MX51_PAD_NANDF_D13__PATA_DATA13,
+ MX51_PAD_NANDF_D12__PATA_DATA12,
+ MX51_PAD_NANDF_D11__PATA_DATA11,
+ MX51_PAD_NANDF_D10__PATA_DATA10,
+ MX51_PAD_NANDF_D9__PATA_DATA9,
+ MX51_PAD_NANDF_D8__PATA_DATA8,
+ MX51_PAD_NANDF_D7__PATA_DATA7,
+ MX51_PAD_NANDF_D6__PATA_DATA6,
+ MX51_PAD_NANDF_D5__PATA_DATA5,
+ MX51_PAD_NANDF_D4__PATA_DATA4,
+ MX51_PAD_NANDF_D3__PATA_DATA3,
+ MX51_PAD_NANDF_D2__PATA_DATA2,
+ MX51_PAD_NANDF_D1__PATA_DATA1,
+ MX51_PAD_NANDF_D0__PATA_DATA0,
+};
+
+/*
+ * EHCI USB
+ */
+#ifdef CONFIG_CMD_USB
+extern void setup_iomux_usb(void);
+#else
+static inline void setup_iomux_usb(void) { }
+#endif
+
+/*
+ * LED configuration
+ *
+ * Smarttop LED pad config is done in the DCD
+ *
+ */
+#define EFIKAMX_LED_BLUE IMX_GPIO_NR(3, 13)
+#define EFIKAMX_LED_GREEN IMX_GPIO_NR(3, 14)
+#define EFIKAMX_LED_RED IMX_GPIO_NR(3, 15)
+
+static iomux_v3_cfg_t const efikasb_led_pads[] = {
+ MX51_PAD_GPIO1_3__GPIO1_3,
+ MX51_PAD_EIM_CS0__GPIO2_25,
+};
+
+#define EFIKASB_CAPSLOCK_LED IMX_GPIO_NR(2, 25)
+#define EFIKASB_MESSAGE_LED IMX_GPIO_NR(1, 3) /* Note: active low */
+
+/*
+ * Board initialization
+ */
+int board_early_init_f(void)
+{
+ if (machine_is_efikasb()) {
+ imx_iomux_v3_setup_multiple_pads(efikasb_led_pads,
+ ARRAY_SIZE(efikasb_led_pads));
+ gpio_direction_output(EFIKASB_CAPSLOCK_LED, 0);
+ gpio_direction_output(EFIKASB_MESSAGE_LED, 1);
+ } else if (machine_is_efikamx()) {
+ /*
+ * Set up GPIO directions for LEDs.
+ * IOMUX has been done in the DCD already.
+ * Turn the red LED on for pre-relocation code.
+ */
+ gpio_direction_output(EFIKAMX_LED_BLUE, 0);
+ gpio_direction_output(EFIKAMX_LED_GREEN, 0);
+ gpio_direction_output(EFIKAMX_LED_RED, 1);
+ }
+
+ /*
+ * Both these pad configurations for UART and SPI are kind of redundant
+ * since they are the Power-On Defaults for the i.MX51. But, it seems we
+ * should make absolutely sure that they are set up correctly.
+ */
+ imx_iomux_v3_setup_multiple_pads(efikamx_uart_pads,
+ ARRAY_SIZE(efikamx_uart_pads));
+ imx_iomux_v3_setup_multiple_pads(efikamx_spi_pads,
+ ARRAY_SIZE(efikamx_spi_pads));
+
+ /* not technically required for U-Boot operation but do it anyway. */
+ gpio_direction_input(EFIKAMX_PMIC_IRQ);
+ /* Deselect both CS for now, otherwise NOR doesn't probe properly. */
+ gpio_direction_output(EFIKAMX_SPI_SS0, 0);
+ gpio_direction_output(EFIKAMX_SPI_SS1, 1);
+
+ return 0;
+}
+
+int board_init(void)
+{
+ gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+ return 0;
+}
+
+int board_late_init(void)
+{
+ if (machine_is_efikamx()) {
+ /*
+ * Set up Blue LED for "In U-Boot" status.
+ * We're all relocated and ready to U-Boot!
+ */
+ gpio_set_value(EFIKAMX_LED_RED, 0);
+ gpio_set_value(EFIKAMX_LED_GREEN, 0);
+ gpio_set_value(EFIKAMX_LED_BLUE, 1);
+ }
+
+ power_init();
+
+ imx_iomux_v3_setup_multiple_pads(efikamx_pata_pads,
+ ARRAY_SIZE(efikamx_pata_pads));
+ setup_iomux_usb();
+
+ return 0;
+}
+
+int checkboard(void)
+{
+ u32 rev = get_efikamx_rev();
+
+ printf("Board: Genesi Efika MX ");
+ if (machine_is_efikamx())
+ printf("Smarttop (1.%i)\n", rev & 0xf);
+ else if (machine_is_efikasb())
+ printf("Smartbook\n");
+
+ return 0;
+}
Code Review / kvmfornfv.git / blobdiff