code rename

16 files changed, 2599 insertions, 0 deletions

diff --git a/fw/fe310/eos/dev/Makefile b/fw/fe310/eos/dev/Makefile
new file mode 100644
index 0000000..83cb1f5
--- /dev/null
+++ b/fw/fe310/eos/dev/Makefile
@@ -0,0 +1,16 @@
+include ../../common.mk
+CFLAGS += -I$(bsp_dir)/include
+
+obj = bq25895.o ov2640.o gt911.o
+
+
+%.o: %.c %.h
+	$(CC) $(CFLAGS) -c $<
+
+%.o: %.S
+	$(CC) $(CFLAGS) -c $<
+
+all: $(obj)
+
+clean:
+	rm -f *.o
diff --git a/fw/fe310/eos/dev/bq25895.c b/fw/fe310/eos/dev/bq25895.c
new file mode 100644
index 0000000..b290926
--- /dev/null
+++ b/fw/fe310/eos/dev/bq25895.c
@@ -0,0 +1,43 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#include "eos.h"
+#include "pwr.h"
+#include "i2c.h"
+#include "bq25895.h"
+
+static int reg_read(uint8_t reg, uint8_t *data) {
+    return eos_i2c_read8(BQ25895_ADDR, reg, data, 1);
+}
+
+static int reg_write(uint8_t reg, uint8_t data) {
+    return eos_i2c_write8(BQ25895_ADDR, reg, &data, 1);
+}
+
+int eos_bq25895_init(uint8_t wakeup_cause) {
+    int rst = (wakeup_cause == EOS_PWR_WAKE_RST);
+    int i, rv = EOS_OK;
+    uint8_t data = 0;
+
+    if (rst) {
+        rv = reg_write(0x14, 0x80);  // reset
+        if (rv) printf("I2C ERROR 0x14\n");
+        rv = reg_write(0x14, 0x00);  // disable watchdog
+        if (rv) printf("I2C ERROR 0x14\n");
+        rv = reg_write(0x07, 0x8d);  // disable watchdog
+        if (rv) printf("I2C ERROR 0x07\n");
+        rv = reg_write(0x00, 0x28);  // 2.1A input current
+        if (rv) printf("I2C ERROR 0x00\n");
+        rv = reg_write(0x02, 0x30);  // enable ICO, disaable MaxCharge and D+/D-
+        if (rv) printf("I2C ERROR 0x02\n");
+    }
+
+    printf("BQ25895:\n");
+    for (i=0; i<0x15; i++) {
+        rv = reg_read(i, &data);
+        if (!rv) printf("REG%02x: %02x\n", i, data);
+    }
+
+    return EOS_OK;
+}
diff --git a/fw/fe310/eos/dev/bq25895.h b/fw/fe310/eos/dev/bq25895.h
new file mode 100644
index 0000000..cbef36e
--- /dev/null
+++ b/fw/fe310/eos/dev/bq25895.h
@@ -0,0 +1,5 @@
+#include <stdint.h>
+
+#define BQ25895_ADDR        0x6A
+
+int eos_bq25895_init(uint8_t wakeup_cause);
diff --git a/fw/fe310/eos/dev/cam.c b/fw/fe310/eos/dev/cam.c
new file mode 100644
index 0000000..43293af
--- /dev/null
+++ b/fw/fe310/eos/dev/cam.c
@@ -0,0 +1,138 @@
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "eos.h"
+#include "spi.h"
+#include "cam.h"
+
+const int _eos_cam_resolution[][2] = {
+    {0,    0   },
+    // C/SIF Resolutions
+    {88,   72  },    /* QQCIF     */
+    {176,  144 },    /* QCIF      */
+    {352,  288 },    /* CIF       */
+    {88,   60  },    /* QQSIF     */
+    {176,  120 },    /* QSIF      */
+    {352,  240 },    /* SIF       */
+    // VGA Resolutions
+    {40,   30  },    /* QQQQVGA   */
+    {80,   60  },    /* QQQVGA    */
+    {160,  120 },    /* QQVGA     */
+    {320,  240 },    /* QVGA      */
+    {640,  480 },    /* VGA       */
+    {60,   40  },    /* HQQQVGA   */
+    {120,  80  },    /* HQQVGA    */
+    {240,  160 },    /* HQVGA     */
+    // FFT Resolutions
+    {64,   32  },    /* 64x32     */
+    {64,   64  },    /* 64x64     */
+    {128,  64  },    /* 128x64    */
+    {128,  128 },    /* 128x128   */
+    {320,  320 },    /* 128x128   */
+    // Other
+    {128,  160 },    /* LCD       */
+    {128,  160 },    /* QQVGA2    */
+    {720,  480 },    /* WVGA      */
+    {752,  480 },    /* WVGA2     */
+    {800,  600 },    /* SVGA      */
+    {1024, 768 },    /* XGA       */
+    {1280, 1024},    /* SXGA      */
+    {1600, 1200},    /* UXGA      */
+    {1280, 720 },    /* HD        */
+    {1920, 1080},    /* FHD       */
+    {2560, 1440},    /* QHD       */
+    {2048, 1536},    /* QXGA      */
+    {2560, 1600},    /* WQXGA     */
+    {2592, 1944},    /* WQXGA2    */
+};
+
+#define CAM_REG_CAPTURE_CTRL        0x01
+#define CAM_REG_FIFO_CTRL           0x04
+
+#define CAM_REG_GPIO_DIR            0x05
+#define CAM_REG_GPIO_WR             0x06
+#define CAM_REG_GPIO_RD             0x45
+
+#define CAM_REG_STATUS              0x41
+
+#define CAM_REG_VER                 0x40
+
+#define CAM_REG_READ_BURST          0x3c
+#define CAM_REG_READ_BYTE           0x3d
+
+#define CAM_REG_FIFO_SIZE1          0x42
+#define CAM_REG_FIFO_SIZE2          0x43
+#define CAM_REG_FIFO_SIZE3          0x44
+
+#define CAM_VAL_FIFO_CTRL_CLEAR     0x01
+#define CAM_VAL_FIFO_CTRL_START     0x02
+#define CAM_VAL_FIFO_CTRL_RSTWR     0x10
+#define CAM_VAL_FIFO_CTRL_RSTRD     0x20
+
+#define CAM_VAL_STATUS_VSYNC        0x01
+#define CAM_VAL_STATUS_SHUTTER      0x02
+#define CAM_VAL_STATUS_CPTDONE      0x08
+
+#define CAM_VAL_GPIO_RST            0x01
+#define CAM_VAL_GPIO_PWRDN          0x02
+#define CAM_VAL_GPIO_PWREN          0x04
+
+static uint8_t reg_read(uint8_t addr) {
+    uint8_t ret;
+
+    eos_spi_cs_set();
+    eos_spi_xchg8(addr, 0);
+    ret = eos_spi_xchg8(0, 0);
+    eos_spi_cs_clear();
+
+    return ret;
+}
+
+static void reg_write(uint8_t addr, uint8_t val) {
+    eos_spi_cs_set();
+    eos_spi_xchg8(addr | 0x80, 0);
+    eos_spi_xchg8(val, 0);
+    eos_spi_cs_clear();
+}
+
+void eos_cam_capture(void) {
+    reg_write(CAM_REG_FIFO_CTRL, CAM_VAL_FIFO_CTRL_START);
+}
+
+int eos_cam_capture_done(void) {
+    return !!(reg_read(CAM_REG_STATUS) & CAM_VAL_STATUS_CPTDONE);
+}
+
+void eos_cam_capture_wait(void) {
+    int done = 0;
+    
+    while (!done) {
+        done = eos_cam_capture_done();
+    }
+}
+
+uint32_t eos_cam_fbuf_size(void) {
+    uint32_t ret;
+    
+	ret = reg_read(CAM_REG_FIFO_SIZE1);
+    ret |= reg_read(CAM_REG_FIFO_SIZE2) << 8;
+    ret |= (reg_read(CAM_REG_FIFO_SIZE3) & 0x7f) << 16;
+    return ret;
+}
+
+void eos_cam_fbuf_read(uint8_t *buffer, uint16_t sz, int first) {
+    int i;
+    
+    eos_spi_cs_set();
+    eos_spi_xchg8(CAM_REG_READ_BURST, 0);
+    if (first) eos_spi_xchg8(0, 0);
+
+    for (i=0; i<sz; i++) {
+        buffer[i] = eos_spi_xchg8(0, 0);
+    }
+    eos_spi_cs_clear();
+}
+
+void eos_cam_fbuf_done(void) {
+    reg_write(CAM_REG_FIFO_CTRL, CAM_VAL_FIFO_CTRL_CLEAR);
+}
diff --git a/fw/fe310/eos/dev/cam.h b/fw/fe310/eos/dev/cam.h
new file mode 100644
index 0000000..f61757b
--- /dev/null
+++ b/fw/fe310/eos/dev/cam.h
@@ -0,0 +1,88 @@
+#include <stdint.h>
+
+typedef enum {
+    PIXFORMAT_INVALID = 0,
+    PIXFORMAT_BINARY,    // 1BPP/BINARY
+    PIXFORMAT_GRAYSCALE, // 1BPP/GRAYSCALE
+    PIXFORMAT_RGB565,    // 2BPP/RGB565
+    PIXFORMAT_YUV422,    // 2BPP/YUV422
+    PIXFORMAT_BAYER,     // 1BPP/RAW
+    PIXFORMAT_JPEG,      // JPEG/COMPRESSED
+} pixformat_t;
+
+typedef enum {
+    FRAMESIZE_INVALID = 0,
+    // C/SIF Resolutions
+    FRAMESIZE_QQCIF,    // 88x72
+    FRAMESIZE_QCIF,     // 176x144
+    FRAMESIZE_CIF,      // 352x288
+    FRAMESIZE_QQSIF,    // 88x60
+    FRAMESIZE_QSIF,     // 176x120
+    FRAMESIZE_SIF,      // 352x240
+    // VGA Resolutions
+    FRAMESIZE_QQQQVGA,  // 40x30
+    FRAMESIZE_QQQVGA,   // 80x60
+    FRAMESIZE_QQVGA,    // 160x120
+    FRAMESIZE_QVGA,     // 320x240
+    FRAMESIZE_VGA,      // 640x480
+    FRAMESIZE_HQQQVGA,  // 60x40
+    FRAMESIZE_HQQVGA,   // 120x80
+    FRAMESIZE_HQVGA,    // 240x160
+    // FFT Resolutions
+    FRAMESIZE_64X32,    // 64x32
+    FRAMESIZE_64X64,    // 64x64
+    FRAMESIZE_128X64,   // 128x64
+    FRAMESIZE_128X128,  // 128x128
+    FRAMESIZE_320X320,  // 320x320
+    // Other
+    FRAMESIZE_LCD,      // 128x160
+    FRAMESIZE_QQVGA2,   // 128x160
+    FRAMESIZE_WVGA,     // 720x480
+    FRAMESIZE_WVGA2,    // 752x480
+    FRAMESIZE_SVGA,     // 800x600
+    FRAMESIZE_XGA,      // 1024x768
+    FRAMESIZE_SXGA,     // 1280x1024
+    FRAMESIZE_UXGA,     // 1600x1200
+    FRAMESIZE_HD,       // 1280x720
+    FRAMESIZE_FHD,      // 1920x1080
+    FRAMESIZE_QHD,      // 2560x1440
+    FRAMESIZE_QXGA,     // 2048x1536
+    FRAMESIZE_WQXGA,    // 2560x1600
+    FRAMESIZE_WQXGA2,   // 2592x1944
+} framesize_t;
+
+typedef enum {
+    GAINCEILING_2X,
+    GAINCEILING_4X,
+    GAINCEILING_8X,
+    GAINCEILING_16X,
+    GAINCEILING_32X,
+    GAINCEILING_64X,
+    GAINCEILING_128X,
+} gainceiling_t;
+
+typedef enum {
+    SDE_NORMAL,
+    SDE_NEGATIVE,
+} sde_t;
+
+extern const int _eos_cam_resolution[][2];
+
+#define IM_LOG2_2(x)    (((x) &                0x2ULL) ? ( 2                        ) :             1) // NO ({ ... }) !
+#define IM_LOG2_4(x)    (((x) &                0xCULL) ? ( 2 +  IM_LOG2_2((x) >>  2)) :  IM_LOG2_2(x)) // NO ({ ... }) !
+#define IM_LOG2_8(x)    (((x) &               0xF0ULL) ? ( 4 +  IM_LOG2_4((x) >>  4)) :  IM_LOG2_4(x)) // NO ({ ... }) !
+#define IM_LOG2_16(x)   (((x) &             0xFF00ULL) ? ( 8 +  IM_LOG2_8((x) >>  8)) :  IM_LOG2_8(x)) // NO ({ ... }) !
+#define IM_LOG2_32(x)   (((x) &         0xFFFF0000ULL) ? (16 + IM_LOG2_16((x) >> 16)) : IM_LOG2_16(x)) // NO ({ ... }) !
+#define IM_LOG2(x)      (((x) & 0xFFFFFFFF00000000ULL) ? (32 + IM_LOG2_32((x) >> 32)) : IM_LOG2_32(x)) // NO ({ ... }) !
+
+#define IM_MAX(a,b)     ({ __typeof__ (a) _a = (a); __typeof__ (b) _b = (b); _a > _b ? _a : _b; })
+#define IM_MIN(a,b)     ({ __typeof__ (a) _a = (a); __typeof__ (b) _b = (b); _a < _b ? _a : _b; })
+#define IM_DIV(a,b)     ({ __typeof__ (a) _a = (a); __typeof__ (b) _b = (b); _b ? (_a / _b) : 0; })
+#define IM_MOD(a,b)     ({ __typeof__ (a) _a = (a); __typeof__ (b) _b = (b); _b ? (_a % _b) : 0; })
+
+void eos_cam_capture(void);
+int eos_cam_capture_done(void);
+void eos_cam_capture_wait(void);
+uint32_t eos_cam_fbuf_size(void);
+void eos_cam_fbuf_read(uint8_t *buffer, uint16_t sz, int first);
+void eos_cam_fbuf_done(void);
diff --git a/fw/fe310/eos/dev/drv2605.h b/fw/fe310/eos/dev/drv2605.h
new file mode 100644
index 0000000..fe90a9b
--- /dev/null
+++ b/fw/fe310/eos/dev/drv2605.h
@@ -0,0 +1,3 @@
+#include <stdint.h>
+
+#define DRV2605_ADDR        0x5A
diff --git a/fw/fe310/eos/dev/lcd.c b/fw/fe310/eos/dev/lcd.c
new file mode 100644
index 0000000..3080a13
--- /dev/null
+++ b/fw/fe310/eos/dev/lcd.c
@@ -0,0 +1,546 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "encoding.h"
+#include "platform.h"
+
+#include "eos.h"
+#include "timer.h"
+#include "i2s.h"
+#include "net.h"
+#include "spi_dev.h"
+#include "eve/eve.h"
+
+#include "board.h"
+
+#include "lcd.h"
+
+#define BIT_PUT(b, pin)     if (b) GPIO_REG(GPIO_OUTPUT_VAL) |= (1 << (pin)); else GPIO_REG(GPIO_OUTPUT_VAL) &= ~(1 << (pin));
+#define BIT_GET(pin)        ((GPIO_REG(GPIO_INPUT_VAL) & (1 << (pin))) >> (pin))
+
+#define SCK_UP              { GPIO_REG(GPIO_OUTPUT_VAL) |= (1 << IOF_SPI1_SCK); }
+#define SCK_DN              { GPIO_REG(GPIO_OUTPUT_VAL) &= ~(1 << IOF_SPI1_SCK); }
+
+static inline void _sleep(int n) {
+    volatile int x = n;
+
+    while(x) x--;
+}
+
+int eos_lcd_select(void) {
+    if (eos_i2s_running()) return EOS_ERR_BUSY;
+    if (eos_spi_dev() != EOS_SPI_DEV_NET) return EOS_ERR_BUSY;
+
+    eos_net_stop();
+
+    GPIO_REG(GPIO_OUTPUT_VAL)   &= ~(1 << LCD_PIN_CS);
+
+    GPIO_REG(GPIO_INPUT_EN)     &= ~(1 << LCD_PIN_CS);
+    GPIO_REG(GPIO_OUTPUT_EN)    |=  (1 << LCD_PIN_CS);
+
+    GPIO_REG(GPIO_IOF_EN)       &=  ~SPI_IOF_MASK;
+
+    return EOS_OK;
+}
+
+void eos_lcd_deselect(void) {
+    GPIO_REG(GPIO_IOF_EN) |= SPI_IOF_MASK;
+    eos_net_start();
+}
+
+void eos_lcd_cs_set(void) {
+    GPIO_REG(GPIO_OUTPUT_VAL) |= (1 << LCD_PIN_CS);
+}
+
+void eos_lcd_cs_clear(void) {
+    GPIO_REG(GPIO_OUTPUT_VAL) &= ~(1 << LCD_PIN_CS);
+}
+
+/* sck frequency for r/w operations is 0.8Mhz */
+void eos_lcd_write(uint8_t dc, uint8_t data) {
+    int i;
+
+    BIT_PUT(dc, IOF_SPI1_MOSI);
+    _sleep(10);
+    SCK_UP;
+    for (i=0; i<8; i++) {
+        _sleep(10);
+        SCK_DN;
+        BIT_PUT(data & 0x80, IOF_SPI1_MOSI);
+        _sleep(10);
+        SCK_UP;
+        data = data << 1;
+    }
+    _sleep(10);
+    SCK_DN;
+}
+
+void eos_lcd_read(uint8_t *data) {
+    int i;
+
+    *data = 0;
+    for (i=0; i<8; i++) {
+        _sleep(10);
+        *data = *data << 1;
+        *data |= BIT_GET(IOF_SPI1_MISO);
+        SCK_UP;
+        _sleep(10);
+        SCK_DN;
+    }
+}
+
+static int _init(void) {
+    int rv;
+    uint8_t chip_id[3];
+
+    rv = eos_lcd_select();
+    if (rv) return rv;
+    eos_lcd_cs_set();
+
+    /* LCD Setting */
+    eos_lcd_write(0, 0xFF);     // change to Page 1 CMD
+    eos_lcd_write(1, 0xFF);
+    eos_lcd_write(1, 0x98);
+    eos_lcd_write(1, 0x06);
+    eos_lcd_write(1, 0x04);
+    eos_lcd_write(1, 0x01);
+
+    // eos_lcd_write(0, 0x08);  // Output SDA
+    // eos_lcd_write(1, 0x10);
+
+    eos_lcd_write(0, 0xFE);     // enable read
+    eos_lcd_write(1, 0x81);
+
+    eos_lcd_write(0, 0x00);     // RDID4
+    eos_lcd_read(&chip_id[0]);
+
+    eos_lcd_write(0, 0x01);
+    eos_lcd_read(&chip_id[1]);
+
+    eos_lcd_write(0, 0x02);
+    eos_lcd_read(&chip_id[2]);
+
+    printf("LCD CHIP ID: %.2x%.2x%.2x\n", chip_id[0], chip_id[1], chip_id[2]);
+
+    eos_lcd_write(0, 0xFE);     // disable read
+    eos_lcd_write(1, 0x00);
+
+    if (memcmp(chip_id, "\x98\x06\x04", sizeof(chip_id))) {
+        return EOS_ERR_ABSENT;
+    }
+
+    eos_lcd_write(0, 0x20);     // set DE/VSYNC mode
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x21);     // DE = 1 Active
+    eos_lcd_write(1, 0x01);
+
+    eos_lcd_write(0, 0x30);     // resolution setting 480 X 854
+    eos_lcd_write(1, 0x01);
+
+    eos_lcd_write(0, 0x31);     // inversion setting 2-dot
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x40);     // BT AVDD,AVDD
+    eos_lcd_write(1, 0x16);
+
+    eos_lcd_write(0, 0x41);
+    eos_lcd_write(1, 0x33);     // 22
+
+    eos_lcd_write(0, 0x42);
+    eos_lcd_write(1, 0x03);     // VGL=DDVDH+VCIP-DDVDL, VGH=2DDVDL-VCIP
+
+    eos_lcd_write(0, 0x43);
+    eos_lcd_write(1, 0x09);     // set VGH clamp level
+
+    eos_lcd_write(0, 0x44);
+    eos_lcd_write(1, 0x06);     // set VGL clamp level
+
+    eos_lcd_write(0, 0x50);     // VREG1
+    eos_lcd_write(1, 0x88);
+
+    eos_lcd_write(0, 0x51);     // VREG2
+    eos_lcd_write(1, 0x88);
+
+    eos_lcd_write(0, 0x52);     // flicker MSB
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x53);     // flicker LSB
+    eos_lcd_write(1, 0x49);     // VCOM
+
+    eos_lcd_write(0, 0x55);     // flicker
+    eos_lcd_write(1, 0x49);
+
+    eos_lcd_write(0, 0x60);
+    eos_lcd_write(1, 0x07);
+
+    eos_lcd_write(0, 0x61);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x62);
+    eos_lcd_write(1, 0x07);
+
+    eos_lcd_write(0, 0x63);
+    eos_lcd_write(1, 0x00);
+
+    /* Gamma Setting */
+    eos_lcd_write(0, 0xA0);     // positive Gamma
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0xA1);
+    eos_lcd_write(1, 0x09);
+
+    eos_lcd_write(0, 0xA2);
+    eos_lcd_write(1, 0x11);
+
+    eos_lcd_write(0, 0xA3);
+    eos_lcd_write(1, 0x0B);
+
+    eos_lcd_write(0, 0xA4);
+    eos_lcd_write(1, 0x05);
+
+    eos_lcd_write(0, 0xA5);
+    eos_lcd_write(1, 0x08);
+
+    eos_lcd_write(0, 0xA6);
+    eos_lcd_write(1, 0x06);
+
+    eos_lcd_write(0, 0xA7);
+    eos_lcd_write(1, 0x04);
+
+    eos_lcd_write(0, 0xA8);
+    eos_lcd_write(1, 0x09);
+
+    eos_lcd_write(0, 0xA9);
+    eos_lcd_write(1, 0x0C);
+
+    eos_lcd_write(0, 0xAA);
+    eos_lcd_write(1, 0x15);
+
+    eos_lcd_write(0, 0xAB);
+    eos_lcd_write(1, 0x08);
+
+    eos_lcd_write(0, 0xAC);
+    eos_lcd_write(1, 0x0F);
+
+    eos_lcd_write(0, 0xAD);
+    eos_lcd_write(1, 0x12);
+
+    eos_lcd_write(0, 0xAE);
+    eos_lcd_write(1, 0x09);
+
+    eos_lcd_write(0, 0xAF);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0xC0);     // negative Gamma
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0xC1);
+    eos_lcd_write(1, 0x09);
+
+    eos_lcd_write(0, 0xC2);
+    eos_lcd_write(1, 0x10);
+
+    eos_lcd_write(0, 0xC3);
+    eos_lcd_write(1, 0x0C);
+
+    eos_lcd_write(0, 0xC4);
+    eos_lcd_write(1, 0x05);
+
+    eos_lcd_write(0, 0xC5);
+    eos_lcd_write(1, 0x08);
+
+    eos_lcd_write(0, 0xC6);
+    eos_lcd_write(1, 0x06);
+
+    eos_lcd_write(0, 0xC7);
+    eos_lcd_write(1, 0x04);
+
+    eos_lcd_write(0, 0xC8);
+    eos_lcd_write(1, 0x08);
+
+    eos_lcd_write(0, 0xC9);
+    eos_lcd_write(1, 0x0C);
+
+    eos_lcd_write(0, 0xCA);
+    eos_lcd_write(1, 0x14);
+
+    eos_lcd_write(0, 0xCB);
+    eos_lcd_write(1, 0x08);
+
+    eos_lcd_write(0, 0xCC);
+    eos_lcd_write(1, 0x0F);
+
+    eos_lcd_write(0, 0xCD);
+    eos_lcd_write(1, 0x11);
+
+    eos_lcd_write(0, 0xCE);
+    eos_lcd_write(1, 0x09);
+
+    eos_lcd_write(0, 0xCF);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0xFF);     // change to Page 6 CMD for GIP timing
+    eos_lcd_write(1, 0xFF);
+    eos_lcd_write(1, 0x98);
+    eos_lcd_write(1, 0x06);
+    eos_lcd_write(1, 0x04);
+    eos_lcd_write(1, 0x06);
+
+    eos_lcd_write(0, 0x00);
+    eos_lcd_write(1, 0x20);
+
+    eos_lcd_write(0, 0x01);
+    eos_lcd_write(1, 0x0A);
+
+    eos_lcd_write(0, 0x02);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x03);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x04);
+    eos_lcd_write(1, 0x01);
+
+    eos_lcd_write(0, 0x05);
+    eos_lcd_write(1, 0x01);
+
+    eos_lcd_write(0, 0x06);
+    eos_lcd_write(1, 0x98);
+
+    eos_lcd_write(0, 0x07);
+    eos_lcd_write(1, 0x06);
+
+    eos_lcd_write(0, 0x08);
+    eos_lcd_write(1, 0x01);
+
+    eos_lcd_write(0, 0x09);
+    eos_lcd_write(1, 0x80);
+
+    eos_lcd_write(0, 0x0A);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x0B);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x0C);
+    eos_lcd_write(1, 0x01);
+
+    eos_lcd_write(0, 0x0D);
+    eos_lcd_write(1, 0x01);
+
+    eos_lcd_write(0, 0x0E);
+    eos_lcd_write(1, 0x05);
+
+    eos_lcd_write(0, 0x0F);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x10);
+    eos_lcd_write(1, 0xF0);
+
+    eos_lcd_write(0, 0x11);
+    eos_lcd_write(1, 0xF4);
+
+    eos_lcd_write(0, 0x12);
+    eos_lcd_write(1, 0x01);
+
+    eos_lcd_write(0, 0x13);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x14);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x15);
+    eos_lcd_write(1, 0xC0);
+
+    eos_lcd_write(0, 0x16);
+    eos_lcd_write(1, 0x08);
+
+    eos_lcd_write(0, 0x17);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x18);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x19);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x1A);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x1B);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x1C);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x1D);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x20);
+    eos_lcd_write(1, 0x01);
+
+    eos_lcd_write(0, 0x21);
+    eos_lcd_write(1, 0x23);
+
+    eos_lcd_write(0, 0x22);
+    eos_lcd_write(1, 0x45);
+
+    eos_lcd_write(0, 0x23);
+    eos_lcd_write(1, 0x67);
+
+    eos_lcd_write(0, 0x24);
+    eos_lcd_write(1, 0x01);
+
+    eos_lcd_write(0, 0x25);
+    eos_lcd_write(1, 0x23);
+
+    eos_lcd_write(0, 0x26);
+    eos_lcd_write(1, 0x45);
+
+    eos_lcd_write(0, 0x27);
+    eos_lcd_write(1, 0x67);
+
+    eos_lcd_write(0, 0x30);
+    eos_lcd_write(1, 0x11);
+
+    eos_lcd_write(0, 0x31);
+    eos_lcd_write(1, 0x11);
+
+    eos_lcd_write(0, 0x32);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x33);
+    eos_lcd_write(1, 0xEE);
+
+    eos_lcd_write(0, 0x34);
+    eos_lcd_write(1, 0xFF);
+
+    eos_lcd_write(0, 0x35);
+    eos_lcd_write(1, 0xBB);
+
+    eos_lcd_write(0, 0x36);
+    eos_lcd_write(1, 0xAA);
+
+    eos_lcd_write(0, 0x37);
+    eos_lcd_write(1, 0xDD);
+
+    eos_lcd_write(0, 0x38);
+    eos_lcd_write(1, 0xCC);
+
+    eos_lcd_write(0, 0x39);
+    eos_lcd_write(1, 0x66);
+
+    eos_lcd_write(0, 0x3A);
+    eos_lcd_write(1, 0x77);
+
+    eos_lcd_write(0, 0x3B);
+    eos_lcd_write(1, 0x22);
+
+    eos_lcd_write(0, 0x3C);
+    eos_lcd_write(1, 0x22);
+
+    eos_lcd_write(0, 0x3D);
+    eos_lcd_write(1, 0x22);
+
+    eos_lcd_write(0, 0x3E);
+    eos_lcd_write(1, 0x22);
+
+    eos_lcd_write(0, 0x3F);
+    eos_lcd_write(1, 0x22);
+
+    eos_lcd_write(0, 0x40);
+    eos_lcd_write(1, 0x22);
+
+    eos_lcd_write(0, 0xFF);     // change to Page 7 CMD for GIP timing
+    eos_lcd_write(1, 0xFF);
+    eos_lcd_write(1, 0x98);
+    eos_lcd_write(1, 0x06);
+    eos_lcd_write(1, 0x04);
+    eos_lcd_write(1, 0x07);
+
+    eos_lcd_write(0, 0x17);
+    eos_lcd_write(1, 0x22);
+
+    eos_lcd_write(0, 0x02);
+    eos_lcd_write(1, 0x77);
+
+    eos_lcd_write(0, 0x26);
+    eos_lcd_write(1, 0xB2);
+
+    eos_lcd_write(0, 0xFF);     // change to Page 0 CMD for normal command
+    eos_lcd_write(1, 0xFF);
+    eos_lcd_write(1, 0x98);
+    eos_lcd_write(1, 0x06);
+    eos_lcd_write(1, 0x04);
+    eos_lcd_write(1, 0x00);
+
+    eos_lcd_write(0, 0x3A);
+    eos_lcd_write(1, 0x70);     // 24BIT
+
+    eos_lcd_write(0, 0x11);
+    eos_time_sleep(120);
+    eos_lcd_write(0, 0x29);
+    eos_time_sleep(25);
+
+    eos_lcd_cs_clear();
+    eos_lcd_deselect();
+
+    return EOS_OK;
+}
+
+int eos_lcd_init(uint8_t wakeup_cause) {
+    eos_spi_select(EOS_SPI_DEV_EVE);
+    eve_gpio_set(EVE_GPIO_LCD_EN, 1);
+    eos_spi_deselect();
+    eos_time_sleep(200);
+
+    return _init();
+}
+
+int eos_lcd_sleep(void) {
+    int rv;
+
+    rv = eos_lcd_select();
+    if (rv) return rv;
+
+    eos_lcd_cs_set();
+
+    eos_lcd_write(0, 0x28);
+    eos_time_sleep(10);
+    eos_lcd_write(0, 0x10);
+
+    eos_lcd_cs_clear();
+    eos_lcd_deselect();
+
+    eos_spi_select(EOS_SPI_DEV_EVE);
+    eve_gpio_set(EVE_GPIO_LCD_EN, 0);
+    eos_spi_deselect();
+
+    return EOS_OK;
+}
+
+int eos_lcd_wake(void) {
+    int rv;
+
+    eos_spi_select(EOS_SPI_DEV_EVE);
+    eve_gpio_set(EVE_GPIO_LCD_EN, 1);
+    eos_spi_deselect();
+    eos_time_sleep(200);
+
+    rv = eos_lcd_select();
+    if (rv) return rv;
+
+    eos_lcd_cs_set();
+
+    eos_lcd_write(0, 0x11);
+    eos_time_sleep(120);
+    eos_lcd_write(0, 0x29);
+
+    eos_lcd_cs_clear();
+    eos_lcd_deselect();
+
+    return EOS_OK;
+}
diff --git a/fw/fe310/eos/dev/lcd.h b/fw/fe310/eos/dev/lcd.h
new file mode 100644
index 0000000..1bcb2cd
--- /dev/null
+++ b/fw/fe310/eos/dev/lcd.h
@@ -0,0 +1,12 @@
+#include <stdint.h>
+
+int eos_lcd_init(uint8_t wakeup_cause);
+int eos_lcd_select(void);
+void eos_lcd_deselect(void);
+void eos_lcd_cs_set(void);
+void eos_lcd_cs_clear(void);
+void eos_lcd_write(uint8_t dc, uint8_t data);
+void eos_lcd_read(uint8_t *data);
+
+int eos_lcd_sleep(void);
+int eos_lcd_wake(void);
\ No newline at end of file
diff --git a/fw/fe310/eos/dev/lsm9ds1.h b/fw/fe310/eos/dev/lsm9ds1.h
new file mode 100644
index 0000000..92220e7
--- /dev/null
+++ b/fw/fe310/eos/dev/lsm9ds1.h
@@ -0,0 +1,4 @@
+#include <stdint.h>
+
+#define LSM9DS1_ADDR_AG     0x1E
+#define LSM9DS1_ADDR_M      0x6B
diff --git a/fw/fe310/eos/dev/ov2640.c b/fw/fe310/eos/dev/ov2640.c
new file mode 100644
index 0000000..6e54f10
--- /dev/null
+++ b/fw/fe310/eos/dev/ov2640.c
@@ -0,0 +1,861 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <math.h>
+
+#include "eos.h"
+#include "timer.h"
+#include "cam.h"
+
+#include "i2c.h"
+#include "ov2640_regs.h"
+#include "ov2640.h"
+
+#define XCLK_FREQ       24000000
+//#define XCLK_FREQ       12000000
+
+#define CIF_WIDTH       (400)
+#define CIF_HEIGHT      (296)
+
+#define SVGA_WIDTH      (800)
+#define SVGA_HEIGHT     (600)
+
+#define UXGA_WIDTH      (1600)
+#define UXGA_HEIGHT     (1200)
+
+static const uint8_t default_regs[][2] = {
+
+// From Linux Driver.
+
+    {BANK_SEL,      BANK_SEL_DSP},
+    {0x2c,          0xff},
+    {0x2e,          0xdf},
+    {BANK_SEL,      BANK_SEL_SENSOR},
+    {0x3c,          0x32},
+//  {CLKRC,         CLKRC_DOUBLE | 0x02},
+    {CLKRC,         0x01},
+    {COM2,          COM2_OUT_DRIVE_3x},
+    {REG04,         REG04_SET(REG04_HFLIP_IMG | REG04_VFLIP_IMG | REG04_VREF_EN | REG04_HREF_EN)},
+    {COM8,          COM8_SET(COM8_BNDF_EN | COM8_AGC_EN | COM8_AEC_EN)},
+    {COM9,          COM9_AGC_SET(COM9_AGC_GAIN_8x)},
+    {0x2c,          0x0c},
+    {0x33,          0x78},
+    {0x3a,          0x33},
+    {0x3b,          0xfb},
+    {0x3e,          0x00},
+    {0x43,          0x11},
+    {0x16,          0x10},
+    {0x39,          0x02},
+    {0x35,          0x88},
+    {0x22,          0x0a},
+    {0x37,          0x40},
+    {0x23,          0x00},
+    {ARCOM2,        0xa0},
+    {0x06,          0x02},
+    {0x06,          0x88},
+    {0x07,          0xc0},
+    {0x0d,          0xb7},
+    {0x0e,          0x01},
+    {0x4c,          0x00},
+    {0x4a,          0x81},
+    {0x21,          0x99},
+    {AEW,           0x40},
+    {AEB,           0x38},
+    {VV,            VV_AGC_TH_SET(0x08, 0x02)},
+    {0x5c,          0x00},
+    {0x63,          0x00},
+    {FLL,           0x22},
+    {COM3,          COM3_BAND_SET(COM3_BAND_AUTO)},
+    {REG5D,         0x55},
+    {REG5E,         0x7d},
+    {REG5F,         0x7d},
+    {REG60,         0x55},
+    {HISTO_LOW,     0x70},
+    {HISTO_HIGH,    0x80},
+    {0x7c,          0x05},
+    {0x20,          0x80},
+    {0x28,          0x30},
+    {0x6c,          0x00},
+    {0x6d,          0x80},
+    {0x6e,          0x00},
+    {0x70,          0x02},
+    {0x71,          0x94},
+    {0x73,          0xc1},
+    {0x3d,          0x34},
+    {COM7,          COM7_RES_UXGA | COM7_ZOOM_EN},
+    {0x5a,          0x57},
+    {COM25,         0x00},
+    {BD50,          0xbb},
+    {BD60,          0x9c},
+    {BANK_SEL,      BANK_SEL_DSP},
+    {0xe5,          0x7f},
+    {MC_BIST,       MC_BIST_RESET | MC_BIST_BOOT_ROM_SEL},
+    {0x41,          0x24},
+    {RESET,         RESET_JPEG | RESET_DVP},
+    {0x76,          0xff},
+    {0x33,          0xa0},
+    {0x42,          0x20},
+    {0x43,          0x18},
+    {0x4c,          0x00},
+    {CTRL3,         CTRL3_BPC_EN | CTRL3_WPC_EN | 0x10},
+    {0x88,          0x3f},
+    {0xd7,          0x03},
+    {0xd9,          0x10},
+    {R_DVP_SP,      R_DVP_SP_AUTO_MODE | 0x2},
+    {0xc8,          0x08},
+    {0xc9,          0x80},
+    {BPADDR,        0x00},
+    {BPDATA,        0x00},
+    {BPADDR,        0x03},
+    {BPDATA,        0x48},
+    {BPDATA,        0x48},
+    {BPADDR,        0x08},
+    {BPDATA,        0x20},
+    {BPDATA,        0x10},
+    {BPDATA,        0x0e},
+    {0x90,          0x00},
+    {0x91,          0x0e},
+    {0x91,          0x1a},
+    {0x91,          0x31},
+    {0x91,          0x5a},
+    {0x91,          0x69},
+    {0x91,          0x75},
+    {0x91,          0x7e},
+    {0x91,          0x88},
+    {0x91,          0x8f},
+    {0x91,          0x96},
+    {0x91,          0xa3},
+    {0x91,          0xaf},
+    {0x91,          0xc4},
+    {0x91,          0xd7},
+    {0x91,          0xe8},
+    {0x91,          0x20},
+    {0x92,          0x00},
+    {0x93,          0x06},
+    {0x93,          0xe3},
+    {0x93,          0x03},
+    {0x93,          0x03},
+    {0x93,          0x00},
+    {0x93,          0x02},
+    {0x93,          0x00},
+    {0x93,          0x00},
+    {0x93,          0x00},
+    {0x93,          0x00},
+    {0x93,          0x00},
+    {0x93,          0x00},
+    {0x93,          0x00},
+    {0x96,          0x00},
+    {0x97,          0x08},
+    {0x97,          0x19},
+    {0x97,          0x02},
+    {0x97,          0x0c},
+    {0x97,          0x24},
+    {0x97,          0x30},
+    {0x97,          0x28},
+    {0x97,          0x26},
+    {0x97,          0x02},
+    {0x97,          0x98},
+    {0x97,          0x80},
+    {0x97,          0x00},
+    {0x97,          0x00},
+    {0xa4,          0x00},
+    {0xa8,          0x00},
+    {0xc5,          0x11},
+    {0xc6,          0x51},
+    {0xbf,          0x80},
+    {0xc7,          0x10},  /* simple AWB */
+    {0xb6,          0x66},
+    {0xb8,          0xA5},
+    {0xb7,          0x64},
+    {0xb9,          0x7C},
+    {0xb3,          0xaf},
+    {0xb4,          0x97},
+    {0xb5,          0xFF},
+    {0xb0,          0xC5},
+    {0xb1,          0x94},
+    {0xb2,          0x0f},
+    {0xc4,          0x5c},
+    {0xa6,          0x00},
+    {0xa7,          0x20},
+    {0xa7,          0xd8},
+    {0xa7,          0x1b},
+    {0xa7,          0x31},
+    {0xa7,          0x00},
+    {0xa7,          0x18},
+    {0xa7,          0x20},
+    {0xa7,          0xd8},
+    {0xa7,          0x19},
+    {0xa7,          0x31},
+    {0xa7,          0x00},
+    {0xa7,          0x18},
+    {0xa7,          0x20},
+    {0xa7,          0xd8},
+    {0xa7,          0x19},
+    {0xa7,          0x31},
+    {0xa7,          0x00},
+    {0xa7,          0x18},
+    {0x7f,          0x00},
+    {0xe5,          0x1f},
+    {0xe1,          0x77},
+    {0xdd,          0x7f},
+    {CTRL0,         CTRL0_YUV422 | CTRL0_YUV_EN | CTRL0_RGB_EN},
+
+// OpenMV Custom.
+
+    {BANK_SEL,      BANK_SEL_SENSOR},
+    {0x0f,          0x4b},
+    {COM1,          0x8f},
+
+// End.
+
+    {0xff,          0xff},
+};
+
+// Looks really bad.
+//static const uint8_t cif_regs[][2] = {
+//    {BANK_SEL,  BANK_SEL_SENSOR},
+//    {COM7,      COM7_RES_CIF},
+//    {COM1,      0x06 | 0x80},
+//    {HSTART,    0x11},
+//    {HSTOP,     0x43},
+//    {VSTART,    0x01}, // 0x01 fixes issue with garbage pixels in the image...
+//    {VSTOP,     0x97},
+//    {REG32,     0x09},
+//    {BANK_SEL,  BANK_SEL_DSP},
+//    {RESET,     RESET_DVP},
+//    {SIZEL,     SIZEL_HSIZE8_11_SET(CIF_WIDTH) | SIZEL_HSIZE8_SET(CIF_WIDTH) | SIZEL_VSIZE8_SET(CIF_HEIGHT)},
+//    {HSIZE8,    HSIZE8_SET(CIF_WIDTH)},
+//    {VSIZE8,    VSIZE8_SET(CIF_HEIGHT)},
+//    {CTRL2,     CTRL2_DCW_EN | CTRL2_SDE_EN | CTRL2_UV_AVG_EN | CTRL2_CMX_EN | CTRL2_UV_ADJ_EN},
+//    {0,         0},
+//};
+
+static const uint8_t svga_regs[][2] = {
+    {BANK_SEL,  BANK_SEL_SENSOR},
+    {COM7,      COM7_RES_SVGA},
+    {COM1,      0x0A | 0x80},
+    {HSTART,    0x11},
+    {HSTOP,     0x43},
+    {VSTART,    0x01}, // 0x01 fixes issue with garbage pixels in the image...
+    {VSTOP,     0x97},
+    {REG32,     0x09},
+    {BANK_SEL,  BANK_SEL_DSP},
+    {RESET,     RESET_DVP},
+    {SIZEL,     SIZEL_HSIZE8_11_SET(SVGA_WIDTH) | SIZEL_HSIZE8_SET(SVGA_WIDTH) | SIZEL_VSIZE8_SET(SVGA_HEIGHT)},
+    {HSIZE8,    HSIZE8_SET(SVGA_WIDTH)},
+    {VSIZE8,    VSIZE8_SET(SVGA_HEIGHT)},
+    {CTRL2,     CTRL2_DCW_EN | CTRL2_SDE_EN | CTRL2_UV_AVG_EN | CTRL2_CMX_EN | CTRL2_UV_ADJ_EN},
+    {0xff,      0xff},
+};
+
+static const uint8_t uxga_regs[][2] = {
+    {BANK_SEL,  BANK_SEL_SENSOR},
+    {COM7,      COM7_RES_UXGA},
+    {COM1,      0x0F | 0x80},
+    {HSTART,    0x11},
+    {HSTOP,     0x75},
+    {VSTART,    0x01},
+    {VSTOP,     0x97},
+    {REG32,     0x36},
+    {BANK_SEL,  BANK_SEL_DSP},
+    {RESET,     RESET_DVP},
+    {SIZEL,     SIZEL_HSIZE8_11_SET(UXGA_WIDTH) | SIZEL_HSIZE8_SET(UXGA_WIDTH) | SIZEL_VSIZE8_SET(UXGA_HEIGHT)},
+    {HSIZE8,    HSIZE8_SET(UXGA_WIDTH)},
+    {VSIZE8,    VSIZE8_SET(UXGA_HEIGHT)},
+    {CTRL2,     CTRL2_DCW_EN | CTRL2_SDE_EN | CTRL2_UV_AVG_EN | CTRL2_CMX_EN | CTRL2_UV_ADJ_EN},
+    {0xff,      0xff},
+};
+
+static const uint8_t yuv422_regs[][2] = {
+    {BANK_SEL,      BANK_SEL_DSP},
+    {R_BYPASS,      R_BYPASS_DSP_EN},
+    {IMAGE_MODE,    IMAGE_MODE_YUV422},
+    {0xd7,          0x03},
+    {0x33,          0xa0},
+    {0xe5,          0x1f},
+    {0xe1,          0x67},
+    {RESET,         0x00},
+    {R_BYPASS,      R_BYPASS_DSP_EN},
+    {0xff,          0xff},
+};
+
+static const uint8_t rgb565_regs[][2] = {
+    {BANK_SEL,      BANK_SEL_DSP},
+    {R_BYPASS,      R_BYPASS_DSP_EN},
+    {IMAGE_MODE,    IMAGE_MODE_RGB565},
+    {0xd7,          0x03},
+    {RESET,         0x00},
+    {R_BYPASS,      R_BYPASS_DSP_EN},
+    {0xff,          0xff},
+};
+
+static const uint8_t bayer_regs[][2] = {
+    {BANK_SEL,      BANK_SEL_DSP},
+    {R_BYPASS,      R_BYPASS_DSP_EN},
+    {IMAGE_MODE,    IMAGE_MODE_RAW10},
+    {0xd7,          0x03},
+    {RESET,         0x00},
+    {R_BYPASS,      R_BYPASS_DSP_EN},
+    {0xff,          0xff},
+};
+
+static const uint8_t jpeg_regs[][2] = {
+    {BANK_SEL,      BANK_SEL_DSP},
+    {R_BYPASS,      R_BYPASS_DSP_EN},
+    {IMAGE_MODE,    IMAGE_MODE_JPEG_EN},
+    {0xd7,          0x03},
+    {RESET,         0x00},
+    {R_BYPASS,      R_BYPASS_DSP_EN},
+    {0xff,          0xff},
+};
+
+#define NUM_BRIGHTNESS_LEVELS (5)
+static const uint8_t brightness_regs[NUM_BRIGHTNESS_LEVELS + 1][5] = {
+    {BPADDR, BPDATA, BPADDR, BPDATA, BPDATA},
+    {0x00, 0x04, 0x09, 0x00, 0x00}, /* -2 */
+    {0x00, 0x04, 0x09, 0x10, 0x00}, /* -1 */
+    {0x00, 0x04, 0x09, 0x20, 0x00}, /*  0 */
+    {0x00, 0x04, 0x09, 0x30, 0x00}, /* +1 */
+    {0x00, 0x04, 0x09, 0x40, 0x00}, /* +2 */
+};
+
+#define NUM_CONTRAST_LEVELS (5)
+static const uint8_t contrast_regs[NUM_CONTRAST_LEVELS + 1][7] = {
+    {BPADDR, BPDATA, BPADDR, BPDATA, BPDATA, BPDATA, BPDATA},
+    {0x00, 0x04, 0x07, 0x20, 0x18, 0x34, 0x06}, /* -2 */
+    {0x00, 0x04, 0x07, 0x20, 0x1c, 0x2a, 0x06}, /* -1 */
+    {0x00, 0x04, 0x07, 0x20, 0x20, 0x20, 0x06}, /*  0 */
+    {0x00, 0x04, 0x07, 0x20, 0x24, 0x16, 0x06}, /* +1 */
+    {0x00, 0x04, 0x07, 0x20, 0x28, 0x0c, 0x06}, /* +2 */
+};
+
+#define NUM_SATURATION_LEVELS (5)
+static const uint8_t saturation_regs[NUM_SATURATION_LEVELS + 1][5] = {
+    {BPADDR, BPDATA, BPADDR, BPDATA, BPDATA},
+    {0x00, 0x02, 0x03, 0x28, 0x28}, /* -2 */
+    {0x00, 0x02, 0x03, 0x38, 0x38}, /* -1 */
+    {0x00, 0x02, 0x03, 0x48, 0x48}, /*  0 */
+    {0x00, 0x02, 0x03, 0x58, 0x58}, /* +1 */
+    {0x00, 0x02, 0x03, 0x68, 0x68}, /* +2 */
+};
+
+static int reg_read(int8_t reg, uint8_t *data) {
+    return eos_i2c_read8(OV2640_ADDR, reg, data, 1);
+}
+
+static int reg_write(uint8_t reg, uint8_t data) {
+    return eos_i2c_write8(OV2640_ADDR, reg, &data, 1);
+}
+
+static int regarr_write(const uint8_t (*regs)[2]) {
+    int i, rv;
+
+    i = 0;
+    rv = EOS_OK;
+
+    while ((regs[i][0] != 0xff) || (regs[i][1] != 0xff)) {
+        if (!rv) rv = reg_write(regs[i][0], regs[i][1]);
+        i++;
+    }
+
+    return rv;
+}
+
+int eos_ov2640_init(void) {
+    int rv;
+
+    // Reset all registers
+    rv = reg_write(BANK_SEL, BANK_SEL_SENSOR);
+    if (rv) return rv;
+
+    rv = reg_write(COM7, COM7_SRST);
+    if (rv) return rv;
+
+    // Delay 5 ms
+    eos_time_sleep(5);
+
+    // Write default regsiters
+    rv = regarr_write(default_regs);
+    if (rv) return rv;
+
+    // Delay 300 ms
+    eos_time_sleep(300);
+
+    return EOS_OK;
+}
+
+int eos_ov2640_sleep(int enable) {
+    uint8_t reg;
+    int rv;
+
+    rv = reg_write(BANK_SEL, BANK_SEL_SENSOR);
+    if (rv) return rv;
+
+    rv = reg_read(COM2, &reg);
+    if (rv) return rv;
+
+    if (enable) {
+        reg |= COM2_STDBY;
+    } else {
+        reg &= ~COM2_STDBY;
+    }
+
+    // Write back register
+    return reg_write(COM2, reg);
+}
+
+int eos_ov2640_set_pixfmt(pixformat_t fmt) {
+    const uint8_t (*regs)[2];
+
+    switch (fmt) {
+        case PIXFORMAT_RGB565:
+            regs = rgb565_regs;
+            break;
+        case PIXFORMAT_YUV422:
+        case PIXFORMAT_GRAYSCALE:
+            regs = yuv422_regs;
+            break;
+        case PIXFORMAT_BAYER:
+            regs = bayer_regs;
+            break;
+        case PIXFORMAT_JPEG:
+            regs = jpeg_regs;
+            break;
+        default:
+            return EOS_ERR;
+    }
+
+    return regarr_write(regs);
+}
+
+int eos_ov2640_set_framesize(framesize_t framesize) {
+    const uint8_t (*regs)[2];
+    uint16_t sensor_w = 0;
+    uint16_t sensor_h = 0;
+    uint16_t w = _eos_cam_resolution[framesize][0];
+    uint16_t h = _eos_cam_resolution[framesize][1];
+    int rv;
+
+    if ((w % 4) || (h % 4) || (w > UXGA_WIDTH) || (h > UXGA_HEIGHT)) { // w/h must be divisble by 4
+        return EOS_ERR;
+    }
+
+    // Looks really bad.
+    /* if ((w <= CIF_WIDTH) && (h <= CIF_HEIGHT)) {
+        regs = cif_regs;
+        sensor_w = CIF_WIDTH;
+        sensor_h = CIF_HEIGHT;
+    } else */ if ((w <= SVGA_WIDTH) && (h <= SVGA_HEIGHT)) {
+        regs = svga_regs;
+        sensor_w = SVGA_WIDTH;
+        sensor_h = SVGA_HEIGHT;
+    } else {
+        regs = uxga_regs;
+        sensor_w = UXGA_WIDTH;
+        sensor_h = UXGA_HEIGHT;
+    }
+
+    // Write setup regsiters
+    rv = regarr_write(regs);
+    if (rv) return rv;
+
+    uint64_t tmp_div = IM_MIN(sensor_w / w, sensor_h / h);
+    uint16_t log_div = IM_MIN(IM_LOG2(tmp_div) - 1, 3);
+    uint16_t div = 1 << log_div;
+    uint16_t w_mul = w * div;
+    uint16_t h_mul = h * div;
+    uint16_t x_off = (sensor_w - w_mul) / 2;
+    uint16_t y_off = (sensor_h - h_mul) / 2;
+
+    rv = EOS_OK;
+    if (!rv) rv = reg_write(CTRLI, CTRLI_LP_DP | CTRLI_V_DIV_SET(log_div) | CTRLI_H_DIV_SET(log_div));
+    if (!rv) rv = reg_write(HSIZE, HSIZE_SET(w_mul));
+    if (!rv) rv = reg_write(VSIZE, VSIZE_SET(h_mul));
+    if (!rv) rv = reg_write(XOFFL, XOFFL_SET(x_off));
+    if (!rv) rv = reg_write(YOFFL, YOFFL_SET(y_off));
+    if (!rv) rv = reg_write(VHYX, VHYX_HSIZE_SET(w_mul) | VHYX_VSIZE_SET(h_mul) | VHYX_XOFF_SET(x_off) | VHYX_YOFF_SET(y_off));
+    if (!rv) rv = reg_write(TEST, TEST_HSIZE_SET(w_mul));
+    if (!rv) rv = reg_write(ZMOW, ZMOW_OUTW_SET(w));
+    if (!rv) rv = reg_write(ZMOH, ZMOH_OUTH_SET(h));
+    if (!rv) rv = reg_write(ZMHH, ZMHH_OUTW_SET(w) | ZMHH_OUTH_SET(h));
+    if (!rv) rv = reg_write(R_DVP_SP, div);
+    if (!rv) rv = reg_write(RESET, 0x00);
+
+    return rv;
+}
+
+int eos_ov2640_set_contrast(int level) {
+    int rv = EOS_OK;
+
+    level += (NUM_CONTRAST_LEVELS / 2) + 1;
+    if (level <= 0 || level > NUM_CONTRAST_LEVELS) {
+        return EOS_ERR;
+    }
+
+    /* Switch to DSP register bank */
+    rv = reg_write(BANK_SEL, BANK_SEL_DSP);
+
+    /* Write contrast registers */
+    for (int i=0; i<sizeof(contrast_regs[0])/sizeof(contrast_regs[0][0]); i++) {
+        if (!rv) rv = reg_write(contrast_regs[0][i], contrast_regs[level][i]);
+    }
+
+    return rv;
+}
+
+int eos_ov2640_set_brightness(int level) {
+    int rv = EOS_OK;
+
+    level += (NUM_BRIGHTNESS_LEVELS / 2) + 1;
+    if (level <= 0 || level > NUM_BRIGHTNESS_LEVELS) {
+        return EOS_ERR;
+    }
+
+    /* Switch to DSP register bank */
+    rv = reg_write(BANK_SEL, BANK_SEL_DSP);
+
+    /* Write brightness registers */
+    for (int i=0; i<sizeof(brightness_regs[0])/sizeof(brightness_regs[0][0]); i++) {
+        if (!rv) rv = reg_write(brightness_regs[0][i], brightness_regs[level][i]);
+    }
+
+    return rv;
+}
+
+int eos_ov2640_set_saturation(int level) {
+    int rv = EOS_OK;
+
+    level += (NUM_SATURATION_LEVELS / 2) + 1;
+    if (level <= 0 || level > NUM_SATURATION_LEVELS) {
+        return EOS_ERR;
+    }
+
+    /* Switch to DSP register bank */
+    rv = reg_write(BANK_SEL, BANK_SEL_DSP);
+
+    /* Write saturation registers */
+    for (int i=0; i<sizeof(saturation_regs[0])/sizeof(saturation_regs[0][0]); i++) {
+        if (!rv) rv = reg_write(saturation_regs[0][i], saturation_regs[level][i]);
+    }
+
+    return rv;
+}
+
+int eos_ov2640_set_gainceiling(gainceiling_t gainceiling) {
+    int rv = EOS_OK;
+
+    /* Switch to SENSOR register bank */
+    rv = reg_write(BANK_SEL, BANK_SEL_SENSOR);
+
+    /* Write gain ceiling register */
+    if (!rv) rv = reg_write(COM9, COM9_AGC_SET(gainceiling));
+
+    return rv;
+}
+
+int eos_ov2640_set_quality(int qs) {
+    int rv = EOS_OK;
+
+    /* Switch to DSP register bank */
+    rv = reg_write(BANK_SEL, BANK_SEL_DSP);
+
+    /* Write QS register */
+    if (!rv) rv = reg_write(QS, qs);
+
+    return rv;
+}
+
+int eos_ov2640_set_colorbar(int enable) {
+    int rv = EOS_OK;
+    uint8_t reg;
+
+    rv = reg_write(BANK_SEL, BANK_SEL_SENSOR);
+    if (rv) return rv;
+
+    rv = reg_read(COM7, &reg);
+    if (rv) return rv;
+
+    if (enable) {
+        reg |= COM7_COLOR_BAR;
+    } else {
+        reg &= ~COM7_COLOR_BAR;
+    }
+
+    return reg_write(COM7, reg);
+}
+
+int eos_ov2640_set_auto_gain(int enable, float gain_db, float gain_db_ceiling) {
+    int rv = EOS_OK;
+    uint8_t reg;
+
+    rv = reg_write(BANK_SEL, BANK_SEL_SENSOR);
+    if (rv) return rv;
+
+    rv = reg_read(COM8, &reg);
+    if (rv) return rv;
+
+    rv = reg_write(COM8, (reg & (~COM8_AGC_EN)) | (enable ? COM8_AGC_EN : 0));
+    if (rv) return rv;
+
+    rv = EOS_OK;
+    if (enable && (!isnanf(gain_db_ceiling)) && (!isinff(gain_db_ceiling))) {
+        float gain_ceiling = IM_MAX(IM_MIN(expf((gain_db_ceiling / 20.0) * logf(10.0)), 128.0), 2.0);
+
+        if (!rv) rv = reg_read(COM9, &reg);
+        if (!rv) rv = reg_write(COM9, (reg & 0x1F) | (((int)ceilf(log2f(gain_ceiling)) - 1) << 5));
+    }
+
+    if (!enable && (!isnanf(gain_db)) && (!isinff(gain_db))) {
+        float gain = IM_MAX(IM_MIN(expf((gain_db / 20.0) * logf(10.0)), 32.0), 1.0);
+
+        int gain_temp = roundf(log2f(IM_MAX(gain / 2.0, 1.0)));
+        int gain_hi = 0xF >> (4 - gain_temp);
+        int gain_lo = IM_MIN(roundf(((gain / (1 << gain_temp)) - 1.0) * 16.0), 15);
+
+        if (!rv) rv = reg_write(GAIN, (gain_hi << 4) | (gain_lo << 0));
+    }
+
+    return rv;
+}
+
+int eos_ov2640_get_gain_db(float *gain_db) {
+    int rv = EOS_OK;
+    uint8_t reg, gain;
+
+    rv = reg_write(BANK_SEL, BANK_SEL_SENSOR);
+    if (rv) return rv;
+
+    rv = reg_read(COM8, &reg);
+    if (rv) return rv;
+
+    // DISABLED
+    // if (reg & COM8_AGC_EN) {
+    //     rv = reg_write(COM8, reg & (~COM8_AGC_EN));
+    //     if (rv) return rv;
+    // }
+    // DISABLED
+
+    rv = reg_read(GAIN, &gain);
+    if (rv) return rv;
+
+    // DISABLED
+    // if (reg & COM8_AGC_EN) {
+    //     rv = reg_write(COM8, reg | COM8_AGC_EN);
+    //     if (rv) return rv;
+    // }
+    // DISABLED
+
+    int hi_gain = 1 << (((gain >> 7) & 1) + ((gain >> 6) & 1) + ((gain >> 5) & 1) + ((gain >> 4) & 1));
+    float lo_gain = 1.0 + (((gain >> 0) & 0xF) / 16.0);
+    *gain_db = 20.0 * (logf(hi_gain * lo_gain) / logf(10.0));
+
+    return EOS_OK;
+}
+
+int eos_ov2640_set_auto_exposure(int enable, int exposure_us) {
+    int rv = EOS_OK;
+    uint8_t reg;
+
+    rv = reg_write(BANK_SEL, BANK_SEL_SENSOR);
+    if (rv) return rv;
+
+    rv = reg_read(COM8, &reg);
+    if (rv) return rv;
+
+    rv = reg_write(COM8, COM8_SET_AEC(reg, (enable != 0)));
+    if (rv) return rv;
+
+    if (!enable && (exposure_us >= 0)) {
+        rv = reg_read(COM7, &reg);
+        if (rv) return rv;
+
+        int t_line = 0;
+
+        if (COM7_GET_RES(reg) == COM7_RES_UXGA) t_line = 1600 + 322;
+        if (COM7_GET_RES(reg) == COM7_RES_SVGA) t_line = 800 + 390;
+        if (COM7_GET_RES(reg) == COM7_RES_CIF) t_line = 400 + 195;
+
+        rv = reg_read(CLKRC, &reg);
+        if (rv) return rv;
+
+        int pll_mult = ((reg & CLKRC_DOUBLE) ? 2 : 1) * 3;
+        int clk_rc = (reg & CLKRC_DIVIDER_MASK) + 2;
+
+        rv = reg_write(BANK_SEL, BANK_SEL_DSP);
+        if (rv) return rv;
+
+        rv = reg_read(IMAGE_MODE, &reg);
+        if (rv) return rv;
+
+        int t_pclk = 0;
+
+        if (IMAGE_MODE_GET_FMT(reg) == IMAGE_MODE_YUV422) t_pclk = 2;
+        if (IMAGE_MODE_GET_FMT(reg) == IMAGE_MODE_RAW10) t_pclk = 1;
+        if (IMAGE_MODE_GET_FMT(reg) == IMAGE_MODE_RGB565) t_pclk = 2;
+
+        int exposure = IM_MAX(IM_MIN(((exposure_us*(((XCLK_FREQ/clk_rc)*pll_mult)/1000000))/t_pclk)/t_line,0xFFFF),0x0000);
+
+        if (!rv) rv = reg_write(BANK_SEL, BANK_SEL_SENSOR);
+
+        if (!rv) rv = reg_read(REG04, &reg);
+        if (!rv) rv = reg_write(REG04, (reg & 0xFC) | ((exposure >> 0) & 0x3));
+
+        if (!rv) rv = reg_read(AEC, &reg);
+        if (!rv) rv = reg_write(AEC, (reg & 0x00) | ((exposure >> 2) & 0xFF));
+
+        if (!rv) rv = reg_read(REG45, &reg);
+        if (!rv) rv = reg_write(REG45, (reg & 0xC0) | ((exposure >> 10) & 0x3F));
+    }
+
+    return rv;
+}
+
+int eos_ov2640_get_exposure_us(int *exposure_us) {
+    int rv = EOS_OK;
+    uint8_t reg, aec_10, aec_92, aec_1510;
+
+    rv = reg_write(BANK_SEL, BANK_SEL_SENSOR);
+    if (rv) return rv;
+
+    rv = reg_read(COM8, &reg);
+    if (rv) return rv;
+
+    // DISABLED
+    // if (reg & COM8_AEC_EN) {
+    //     rv = reg_write(COM8, reg & (~COM8_AEC_EN));
+    //     if (rv) return rv;
+    // }
+    // DISABLED
+
+    rv = reg_read(REG04, &aec_10);
+    if (rv) return rv;
+
+    rv = reg_read(AEC, &aec_92);
+    if (rv) return rv;
+
+    rv = reg_read(REG45, &aec_1510);
+    if (rv) return rv;
+
+    // DISABLED
+    // if (reg & COM8_AEC_EN) {
+    //     rv = reg_write(COM8, reg | COM8_AEC_EN);
+    //     if (rv) return rv;
+    // }
+    // DISABLED
+
+    rv = reg_read(COM7, &reg);
+    if (rv) return rv;
+
+    int t_line = 0;
+
+    if (COM7_GET_RES(reg) == COM7_RES_UXGA) t_line = 1600 + 322;
+    if (COM7_GET_RES(reg) == COM7_RES_SVGA) t_line = 800 + 390;
+    if (COM7_GET_RES(reg) == COM7_RES_CIF) t_line = 400 + 195;
+
+    rv = reg_read(CLKRC, &reg);
+    if (rv) return rv;
+
+    int pll_mult = ((reg & CLKRC_DOUBLE) ? 2 : 1) * 3;
+    int clk_rc = (reg & CLKRC_DIVIDER_MASK) + 2;
+
+    rv = reg_write(BANK_SEL, BANK_SEL_DSP);
+    if (rv) return rv;
+
+    rv = reg_read(IMAGE_MODE, &reg);
+    if (rv) return rv;
+
+    int t_pclk = 0;
+
+    if (IMAGE_MODE_GET_FMT(reg) == IMAGE_MODE_YUV422) t_pclk = 2;
+    if (IMAGE_MODE_GET_FMT(reg) == IMAGE_MODE_RAW10) t_pclk = 1;
+    if (IMAGE_MODE_GET_FMT(reg) == IMAGE_MODE_RGB565) t_pclk = 2;
+
+    uint16_t exposure = ((aec_1510 & 0x3F) << 10) + ((aec_92 & 0xFF) << 2) + ((aec_10 & 0x3) << 0);
+    *exposure_us = (exposure*t_line*t_pclk)/(((XCLK_FREQ/clk_rc)*pll_mult)/1000000);
+
+    return EOS_OK;
+}
+
+int eos_ov2640_set_auto_whitebal(int enable, float r_gain_db, float g_gain_db, float b_gain_db) {
+    int rv = EOS_OK;
+    uint8_t reg;
+
+    rv = reg_write(BANK_SEL, BANK_SEL_DSP);
+    if (rv) return rv;
+
+    rv = reg_read(CTRL1, &reg);
+    if (rv) return rv;
+
+    rv = reg_write(CTRL1, (reg & (~CTRL1_AWB)) | (enable ? CTRL1_AWB : 0));
+    if (rv) return rv;
+
+    if (!enable && (!isnanf(r_gain_db)) && (!isnanf(g_gain_db)) && (!isnanf(b_gain_db))
+                && (!isinff(r_gain_db)) && (!isinff(g_gain_db)) && (!isinff(b_gain_db))) {
+    }
+
+    return rv;
+}
+
+int eos_ov2640_set_hmirror(int enable) {
+    int rv = EOS_OK;
+    uint8_t reg;
+
+    rv = reg_write(BANK_SEL, BANK_SEL_SENSOR);
+    if (rv) return rv;
+
+    rv = reg_read(REG04, &reg);
+    if (rv) return rv;
+
+    if (!enable) { // Already mirrored.
+        reg |= REG04_HFLIP_IMG;
+    } else {
+        reg &= ~REG04_HFLIP_IMG;
+    }
+
+    return reg_write(REG04, reg);
+}
+
+int eos_ov2640_set_vflip(int enable) {
+    int rv = EOS_OK;
+    uint8_t reg;
+
+    rv = reg_write(BANK_SEL, BANK_SEL_SENSOR);
+    if (rv) return rv;
+
+    rv = reg_read(REG04, &reg);
+    if (rv) return rv;
+
+    if (!enable) { // Already flipped.
+        reg |= REG04_VFLIP_IMG | REG04_VREF_EN;
+    } else {
+        reg &= ~(REG04_VFLIP_IMG | REG04_VREF_EN);
+    }
+
+    return reg_write(REG04, reg);
+}
+
+int eos_ov2640_set_effect(sde_t sde) {
+    int rv = EOS_OK;
+
+    switch (sde) {
+        case SDE_NEGATIVE:
+            if (!rv) rv = reg_write(BANK_SEL, BANK_SEL_DSP);
+            if (!rv) rv = reg_write(BPADDR, 0x00);
+            if (!rv) rv = reg_write(BPDATA, 0x40);
+            if (!rv) rv = reg_write(BPADDR, 0x05);
+            if (!rv) rv = reg_write(BPDATA, 0x80);
+            if (!rv) rv = reg_write(BPDATA, 0x80);
+            break;
+        case SDE_NORMAL:
+            if (!rv) rv = reg_write(BANK_SEL, BANK_SEL_DSP);
+            if (!rv) rv = reg_write(BPADDR, 0x00);
+            if (!rv) rv = reg_write(BPDATA, 0x00);
+            if (!rv) rv = reg_write(BPADDR, 0x05);
+            if (!rv) rv = reg_write(BPDATA, 0x80);
+            if (!rv) rv = reg_write(BPDATA, 0x80);
+            break;
+        default:
+            return EOS_ERR;
+    }
+
+    return rv;
+}
diff --git a/fw/fe310/eos/dev/ov2640.h b/fw/fe310/eos/dev/ov2640.h
new file mode 100644
index 0000000..3d08c2a
--- /dev/null
+++ b/fw/fe310/eos/dev/ov2640.h
@@ -0,0 +1,8 @@
+#include <stdint.h>
+
+#define OV2640_ADDR     0x30
+
+int eos_ov2640_init(void);
+int eos_ov2640_sleep(int enable);
+int eos_ov2640_set_pixfmt(pixformat_t fmt);
+int eos_ov2640_set_framesize(framesize_t framesize);
diff --git a/fw/fe310/eos/dev/ov2640_regs.h b/fw/fe310/eos/dev/ov2640_regs.h
new file mode 100644
index 0000000..deb7521
--- /dev/null
+++ b/fw/fe310/eos/dev/ov2640_regs.h
@@ -0,0 +1,245 @@
+/*
+ * This file is part of the OpenMV project.
+ *
+ * Copyright (c) 2013-2021 Ibrahim Abdelkader <iabdalkader@openmv.io>
+ * Copyright (c) 2013-2021 Kwabena W. Agyeman <kwagyeman@openmv.io>
+ *
+ * This work is licensed under the MIT license, see the file LICENSE for details.
+ *
+ * OV2640 register definitions.
+ */
+#ifndef __REG_REGS_H__
+#define __REG_REGS_H__
+
+/* DSP register bank FF=0x00*/
+
+#define QS                      0x44
+#define HSIZE                   0x51
+#define VSIZE                   0x52
+#define XOFFL                   0x53
+#define YOFFL                   0x54
+#define VHYX                    0x55
+#define DPRP                    0x56
+#define TEST                    0x57
+#define ZMOW                    0x5A
+#define ZMOH                    0x5B
+#define ZMHH                    0x5C
+#define BPADDR                  0x7C
+#define BPDATA                  0x7D
+#define SIZEL                   0x8C
+#define HSIZE8                  0xC0
+#define VSIZE8                  0xC1
+#define CTRL1                   0xC3
+#define MS_SP                   0xF0
+#define SS_ID                   0xF7
+#define SS_CTRL                 0xF7
+#define MC_AL                   0xFA
+#define MC_AH                   0xFB
+#define MC_D                    0xFC
+#define P_CMD                   0xFD
+#define P_STATUS                0xFE
+
+#define CTRLI                   0x50
+#define CTRLI_LP_DP             0x80
+#define CTRLI_ROUND             0x40
+
+#define CTRL0                   0xC2
+#define CTRL0_AEC_EN            0x80
+#define CTRL0_AEC_SEL           0x40
+#define CTRL0_STAT_SEL          0x20
+#define CTRL0_VFIRST            0x10
+#define CTRL0_YUV422            0x08
+#define CTRL0_YUV_EN            0x04
+#define CTRL0_RGB_EN            0x02
+#define CTRL0_RAW_EN            0x01
+
+#define CTRL2                   0x86
+#define CTRL2_DCW_EN            0x20
+#define CTRL2_SDE_EN            0x10
+#define CTRL2_UV_ADJ_EN         0x08
+#define CTRL2_UV_AVG_EN         0x04
+#define CTRL2_CMX_EN            0x01
+
+#define CTRL3                   0x87
+#define CTRL3_BPC_EN            0x80
+#define CTRL3_WPC_EN            0x40
+#define R_DVP_SP                0xD3
+#define R_DVP_SP_AUTO_MODE      0x80
+
+#define R_BYPASS                0x05
+#define R_BYPASS_DSP_EN         0x00
+#define R_BYPASS_DSP_BYPAS      0x01
+
+#define IMAGE_MODE              0xDA
+#define IMAGE_MODE_Y8_DVP_EN    0x40
+#define IMAGE_MODE_JPEG_EN      0x10
+#define IMAGE_MODE_YUV422       0x00
+#define IMAGE_MODE_RAW10        0x04
+#define IMAGE_MODE_RGB565       0x09
+#define IMAGE_MODE_HREF_VSYNC   0x02
+#define IMAGE_MODE_LBYTE_FIRST  0x01
+#define IMAGE_MODE_GET_FMT(x)   ((x)&0xC)
+
+#define RESET                   0xE0
+#define RESET_MICROC            0x40
+#define RESET_SCCB              0x20
+#define RESET_JPEG              0x10
+#define RESET_DVP               0x04
+#define RESET_IPU               0x02
+#define RESET_CIF               0x01
+
+#define MC_BIST                 0xF9
+#define MC_BIST_RESET           0x80
+#define MC_BIST_BOOT_ROM_SEL    0x40
+#define MC_BIST_12KB_SEL        0x20
+#define MC_BIST_12KB_MASK       0x30
+#define MC_BIST_512KB_SEL       0x08
+#define MC_BIST_512KB_MASK      0x0C
+#define MC_BIST_BUSY_BIT_R      0x02
+#define MC_BIST_MC_RES_ONE_SH_W 0x02
+#define MC_BIST_LAUNCH          0x01
+
+#define BANK_SEL                0xFF
+#define BANK_SEL_DSP            0x00
+#define BANK_SEL_SENSOR         0x01
+
+/* Sensor register bank FF=0x01*/
+
+#define GAIN                0x00
+#define COM1                0x03
+#define REG_PID             0x0A
+#define REG_VER             0x0B
+#define COM4                0x0D
+#define AEC                 0x10
+
+#define CLKRC               0x11
+#define CLKRC_DOUBLE        0x80
+#define CLKRC_DIVIDER_MASK  0x3F
+
+#define COM10               0x15
+#define HSTART              0x17
+#define HSTOP               0x18
+#define VSTART              0x19
+#define VSTOP               0x1A
+#define MIDH                0x1C
+#define MIDL                0x1D
+#define AEW                 0x24
+#define AEB                 0x25
+#define REG2A               0x2A
+#define FRARL               0x2B
+#define ADDVSL              0x2D
+#define ADDVSH              0x2E
+#define YAVG                0x2F
+#define HSDY                0x30
+#define HEDY                0x31
+#define ARCOM2              0x34
+#define REG45               0x45
+#define FLL                 0x46
+#define FLH                 0x47
+#define COM19               0x48
+#define ZOOMS               0x49
+#define COM22               0x4B
+#define COM25               0x4E
+#define BD50                0x4F
+#define BD60                0x50
+#define REG5D               0x5D
+#define REG5E               0x5E
+#define REG5F               0x5F
+#define REG60               0x60
+#define HISTO_LOW           0x61
+#define HISTO_HIGH          0x62
+
+#define REG04               0x04
+#define REG04_DEFAULT       0x28
+#define REG04_HFLIP_IMG     0x80
+#define REG04_VFLIP_IMG     0x40
+#define REG04_VREF_EN       0x10
+#define REG04_HREF_EN       0x08
+#define REG04_SET(x)        (REG04_DEFAULT|x)
+
+#define REG08               0x08
+#define COM2                0x09
+#define COM2_STDBY          0x10
+#define COM2_OUT_DRIVE_1x   0x00
+#define COM2_OUT_DRIVE_2x   0x01
+#define COM2_OUT_DRIVE_3x   0x02
+#define COM2_OUT_DRIVE_4x   0x03
+
+#define COM3                0x0C
+#define COM3_DEFAULT        0x38
+#define COM3_BAND_50Hz      0x04
+#define COM3_BAND_60Hz      0x00
+#define COM3_BAND_AUTO      0x02
+#define COM3_BAND_SET(x)    (COM3_DEFAULT|x)
+
+#define COM7                0x12
+#define COM7_SRST           0x80
+#define COM7_RES_UXGA       0x00 /* UXGA */
+#define COM7_RES_SVGA       0x40 /* SVGA */
+#define COM7_RES_CIF        0x20 /* CIF  */
+#define COM7_ZOOM_EN        0x04 /* Enable Zoom */
+#define COM7_COLOR_BAR      0x02 /* Enable Color Bar Test */
+#define COM7_GET_RES(x)     ((x)&0x70)
+
+#define COM8                0x13
+#define COM8_DEFAULT        0xC0
+#define COM8_BNDF_EN        0x20 /* Enable Banding filter */
+#define COM8_AGC_EN         0x04 /* AGC Auto/Manual control selection */
+#define COM8_AEC_EN         0x01 /* Auto/Manual Exposure control */
+#define COM8_SET(x)         (COM8_DEFAULT|x)
+#define COM8_SET_AEC(r,x)   (((r)&0xFE)|((x)&1))
+
+#define COM9                0x14 /* AGC gain ceiling */
+#define COM9_DEFAULT        0x08
+#define COM9_AGC_GAIN_2x    0x00 /* AGC:    2x */
+#define COM9_AGC_GAIN_4x    0x01 /* AGC:    4x */
+#define COM9_AGC_GAIN_8x    0x02 /* AGC:    8x */
+#define COM9_AGC_GAIN_16x   0x03 /* AGC:   16x */
+#define COM9_AGC_GAIN_32x   0x04 /* AGC:   32x */
+#define COM9_AGC_GAIN_64x   0x05 /* AGC:   64x */
+#define COM9_AGC_GAIN_128x  0x06 /* AGC:  128x */
+#define COM9_AGC_SET(x)     (COM9_DEFAULT|(x<<5))
+
+#define CTRL1_AWB           0x08 /* Enable AWB */
+
+#define VV                  0x26
+#define VV_AGC_TH_SET(h,l)  ((h<<4)|(l&0x0F))
+
+#define REG32               0x32
+#define REG32_UXGA          0x36
+#define REG32_SVGA          0x09
+#define REG32_CIF           0x00
+
+#define VAL_SET(x, mask, rshift, lshift) ((((x) >> rshift) & mask) << lshift)
+
+#define CTRLI_V_DIV_SET(x)      VAL_SET(x, 0x3, 0, 3)
+#define CTRLI_H_DIV_SET(x)      VAL_SET(x, 0x3, 0, 0)
+
+#define SIZEL_HSIZE8_11_SET(x)  VAL_SET(x, 0x1, 11, 6)
+#define SIZEL_HSIZE8_SET(x)     VAL_SET(x, 0x7, 0, 3)
+#define SIZEL_VSIZE8_SET(x)     VAL_SET(x, 0x7, 0, 0)
+
+#define HSIZE8_SET(x)           VAL_SET(x, 0xFF, 3, 0)
+#define VSIZE8_SET(x)           VAL_SET(x, 0xFF, 3, 0)
+
+#define HSIZE_SET(x)            VAL_SET(x, 0xFF, 2, 0)
+#define VSIZE_SET(x)            VAL_SET(x, 0xFF, 2, 0)
+
+#define XOFFL_SET(x)            VAL_SET(x, 0xFF, 0, 0)
+#define YOFFL_SET(x)            VAL_SET(x, 0xFF, 0, 0)
+
+#define VHYX_VSIZE_SET(x)       VAL_SET(x, 0x1, (8+2), 7)
+#define VHYX_HSIZE_SET(x)       VAL_SET(x, 0x1, (8+2), 3)
+#define VHYX_YOFF_SET(x)        VAL_SET(x, 0x3, 8, 4)
+#define VHYX_XOFF_SET(x)        VAL_SET(x, 0x3, 8, 0)
+
+#define TEST_HSIZE_SET(x)       VAL_SET(x, 0x1, (9+2), 7)
+
+#define ZMOW_OUTW_SET(x)        VAL_SET(x, 0xFF, 2, 0)
+#define ZMOH_OUTH_SET(x)        VAL_SET(x, 0xFF, 2, 0)
+
+#define ZMHH_ZSPEED_SET(x)      VAL_SET(x, 0x0F, 0, 4)
+#define ZMHH_OUTH_SET(x)        VAL_SET(x, 0x1, (8+2), 2)
+#define ZMHH_OUTW_SET(x)        VAL_SET(x, 0x3, (8+2), 0)
+
+#endif //__REG_REGS_H__
diff --git a/fw/fe310/eos/dev/sdc_crypto.c b/fw/fe310/eos/dev/sdc_crypto.c
new file mode 100644
index 0000000..f0e935d
--- /dev/null
+++ b/fw/fe310/eos/dev/sdc_crypto.c
@@ -0,0 +1,51 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "sha/sha1.h"
+#include "sdc_crypto.h"
+
+#define SDC_CRYPTO_KEY_SIZE     16
+#define SDC_CRYPTO_BLK_SIZE     16
+#define SDC_CRYPTO_HASH_SIZE    20
+
+EOSSDCCrypto *sdc_crypto;
+
+void eos_sdcc_init(EOSSDCCrypto *crypto, uint8_t *key, void *ctx, eve_sdcc_init_t init, eve_sdcc_crypt_t enc, eve_sdcc_crypt_t dec, void *ctx_essiv, eve_sdcc_init_t init_essiv, eve_sdcc_essiv_t enc_essiv) {
+    char key_essiv[SDC_CRYPTO_HASH_SIZE];
+
+    sdc_crypto = crypto;
+
+    memset(key_essiv, 0, SDC_CRYPTO_HASH_SIZE);
+    init(ctx, key);
+    sdc_crypto->ctx = ctx;
+    sdc_crypto->enc = enc;
+    sdc_crypto->dec = dec;
+
+    SHA1(key_essiv, key, SDC_CRYPTO_KEY_SIZE);
+    init_essiv(ctx_essiv, key_essiv);
+    sdc_crypto->ctx_essiv = ctx_essiv;
+    sdc_crypto->enc_essiv = enc_essiv;
+}
+
+void eos_sdcc_encrypt(uint32_t sect, uint8_t *buffer) {
+    uint8_t iv[SDC_CRYPTO_BLK_SIZE];
+
+    if (sdc_crypto == NULL) return;
+
+    memset(iv, 0, SDC_CRYPTO_BLK_SIZE);
+    memcpy(iv, &sect, sizeof(sect));
+    sdc_crypto->enc_essiv(sdc_crypto->ctx_essiv, iv);
+    sdc_crypto->enc(sdc_crypto->ctx, iv, buffer, 512);
+}
+
+void eos_sdcc_decrypt(uint32_t sect, uint8_t *buffer) {
+    uint8_t iv[SDC_CRYPTO_BLK_SIZE];
+
+    if (sdc_crypto == NULL) return;
+
+    memset(iv, 0, SDC_CRYPTO_BLK_SIZE);
+    memcpy(iv, &sect, sizeof(sect));
+    sdc_crypto->enc_essiv(sdc_crypto->ctx_essiv, iv);
+    sdc_crypto->dec(sdc_crypto->ctx, iv, buffer, 512);
+}
diff --git a/fw/fe310/eos/dev/sdc_crypto.h b/fw/fe310/eos/dev/sdc_crypto.h
new file mode 100644
index 0000000..015bf8a
--- /dev/null
+++ b/fw/fe310/eos/dev/sdc_crypto.h
@@ -0,0 +1,18 @@
+#include <stddef.h>
+#include <stdint.h>
+
+typedef void (*eve_sdcc_init_t) (void *, uint8_t *);
+typedef void (*eve_sdcc_crypt_t) (void *, uint8_t *, uint8_t *, size_t);
+typedef void (*eve_sdcc_essiv_t) (void *, uint8_t *);
+
+typedef struct EOSSDCCrypto {
+    void *ctx;
+    eve_sdcc_crypt_t enc;
+    eve_sdcc_crypt_t dec;
+    void *ctx_essiv;
+    eve_sdcc_essiv_t enc_essiv;
+} EOSSDCCrypto;
+
+void eos_sdcc_init(EOSSDCCrypto *crypto, uint8_t *key, void *ctx, eve_sdcc_init_t init, eve_sdcc_crypt_t enc, eve_sdcc_crypt_t dec, void *ctx_essiv, eve_sdcc_init_t init_essiv, eve_sdcc_essiv_t enc_essiv);
+void eos_sdcc_encrypt(uint32_t sect, uint8_t *buffer);
+void eos_sdcc_decrypt(uint32_t sect, uint8_t *buffer);
\ No newline at end of file
diff --git a/fw/fe310/eos/dev/sdcard.c b/fw/fe310/eos/dev/sdcard.c
new file mode 100644
index 0000000..d081388
--- /dev/null
+++ b/fw/fe310/eos/dev/sdcard.c
@@ -0,0 +1,539 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#include "eos.h"
+#include "timer.h"
+
+#include "spi.h"
+#include "spi_dev.h"
+
+#include "sdc_crypto.h"
+#include "sdcard.h"
+
+#define SDC_TIMEOUT_CMD         500
+#define SDC_TIMEOUT_READ        200
+#define SDC_TIMEOUT_WRITE       500
+
+#define SDC_POLY_CRC7           0x09
+#define SDC_POLY_CRC16          0x1021
+
+#define SDC_CMD_FLAG_CRC        0x01
+#define SDC_CMD_FLAG_NOCS       0x02
+#define SDC_CMD_FLAG_NOWAIT     0x04
+#define SDC_CMD_FLAG_RSTUFF     0x08
+
+#define SDC_TOKEN_START_BLK     0xfe
+#define SDC_TOKEN_START_BLKM    0xfc
+#define SDC_TOKEN_STOP_TRAN     0xfd
+
+#define SDC_DRESP_MASK          0x1f
+#define SDC_DRESP_ACCEPT        0x05
+#define SDC_DRESP_ERR_CRC       0x0b
+#define SDC_DRESP_ERR_WRITE     0x0d
+
+#define SDC_R1_READY            0x00
+
+#define SDC_R1_IDLE_STATE       0x01
+#define SDC_R1_ERASE_RESET      0x02
+#define SDC_R1_ILLEGAL_CMD      0x04
+#define SDC_R1_ERR_CMD_CRC      0x08
+#define SDC_R1_ERR_ERASE_SEQ    0x10
+#define SDC_R1_ERR_ADDR         0x20
+#define SDC_R1_ERR_PARAM        0x40
+
+#define SDC_NCR                 10
+
+#define SDC_ERR(rv)             ((rv < 0) ? rv : EOS_ERR)
+
+/* CMD */
+#define GO_IDLE_STATE           0
+#define SEND_OP_COND            1
+#define SEND_IF_COND            8
+#define SEND_CSD                9
+#define STOP_TRANSMISSION       12
+#define SET_BLOCKLEN            16
+#define READ_SINGLE_BLOCK       17
+#define READ_MULTIPLE_BLOCK     18
+#define WRITE_BLOCK             24
+#define WRITE_MULTIPLE_BLOCK    25
+#define ERASE_WR_BLK_START      32
+#define ERASE_WR_BLK_END        33
+#define ERASE                   38
+#define APP_CMD                 55
+#define READ_OCR                58
+
+/* ACMD */
+#define SD_STATUS               13
+#define SET_WR_BLK_ERASE_COUNT  23
+#define SD_APP_OP_COND          41
+
+static uint8_t sdc_type = 0;
+
+static uint8_t sdc_crc7(uint8_t crc, uint8_t b) {
+    int i;
+
+    for (i=8; i--; b<<=1) {
+        crc <<= 1;
+        if ((b ^ crc) & 0x80) crc ^= SDC_POLY_CRC7;
+    }
+    return crc & 0x7f;
+}
+
+static uint16_t sdc_crc16(uint16_t crc, uint8_t b) {
+    int i;
+
+    crc = crc ^ ((uint16_t)b << 8);
+    for (i=8; i--;) {
+        if (crc & 0x8000) {
+            crc = (crc << 1) ^ SDC_POLY_CRC16;
+        } else {
+            crc <<= 1;
+        }
+    }
+    return crc;
+}
+
+static uint32_t sdc_nto(uint32_t start, uint32_t timeout) {
+    uint32_t d = eos_time_delta_ms(start);
+    return (d > timeout) ? 0 : timeout - d;
+}
+
+static uint8_t sdc_xchg8(uint8_t data) {
+    return eos_spi_xchg8(data, 0);
+}
+
+static uint16_t sdc_xchg16(uint16_t data) {
+    return eos_spi_xchg16(data, 0);
+}
+
+static uint32_t sdc_xchg32(uint32_t data) {
+    return eos_spi_xchg32(data, 0);
+}
+
+static void sdc_buf_send(unsigned char *buffer, uint16_t len) {
+    int i;
+
+    for (i=0; i<len; i++) {
+        sdc_xchg8(buffer[i]);
+    }
+}
+
+static void sdc_buf_recv(unsigned char *buffer, uint16_t len) {
+    int i;
+
+    for (i=0; i<len; i++) {
+        buffer[i] = sdc_xchg8(0xff);
+    }
+}
+
+static void sdc_select(void) {
+    eos_spi_cs_set();
+    eos_spi_xchg8(0xff, 0);
+}
+
+static void sdc_deselect(void) {
+    eos_spi_cs_clear();
+    eos_spi_xchg8(0xff, 0);
+}
+
+static int sdc_xchg_cmd(uint8_t cmd, uint32_t arg, uint8_t flags) {
+    int i;
+    uint8_t ret;
+    uint8_t crc = 0x7f;
+
+    cmd |= 0x40;
+    if (flags & SDC_CMD_FLAG_CRC) {
+        crc = sdc_crc7(0, cmd);
+        crc = sdc_crc7(crc, arg >> 24);
+        crc = sdc_crc7(crc, arg >> 16);
+        crc = sdc_crc7(crc, arg >> 8);
+        crc = sdc_crc7(crc, arg);
+    }
+    crc = (crc << 1) | 0x01;
+    sdc_xchg8(cmd);
+    sdc_xchg32(arg);
+    sdc_xchg8(crc);
+    if (flags & SDC_CMD_FLAG_RSTUFF) sdc_xchg8(0xff);
+
+    i = SDC_NCR;
+    do {
+        ret = sdc_xchg8(0xff);
+    } while ((ret & 0x80) && --i);
+    if (ret & 0x80) return EOS_ERR_BUSY;
+
+    return ret;
+}
+
+static int sdc_ready(uint32_t timeout) {
+    uint8_t d = 0;
+    uint32_t start;
+
+    if (timeout == 0) return EOS_ERR_BUSY;
+    start = eos_time_get_tick();
+    do {
+        if (eos_time_delta_ms(start) > timeout) break;
+        d = sdc_xchg8(0xff);
+    } while (d != 0xff);
+    if (d != 0xff) return EOS_ERR_BUSY;
+
+    return EOS_OK;
+}
+
+static int sdc_block_read(uint8_t *buffer, uint16_t len, uint32_t timeout) {
+    uint8_t token = 0xff;
+    uint32_t start;
+
+    if (timeout == 0) return EOS_ERR_BUSY;
+    start = eos_time_get_tick();
+    do {
+        if (eos_time_delta_ms(start) > timeout) break;
+        token = sdc_xchg8(0xff);
+    } while (token == 0xff);
+    if (token == 0xff) return EOS_ERR_BUSY;
+    if (token != SDC_TOKEN_START_BLK) return EOS_ERR;
+
+    sdc_buf_recv(buffer, len);
+    sdc_xchg16(0xffff); /* dummy CRC */
+
+    return EOS_OK;
+}
+
+static int sdc_block_write(uint8_t token, uint8_t *buffer, uint16_t len, uint32_t timeout) {
+    uint8_t d;
+    int rv;
+
+    rv = sdc_ready(timeout);
+    if (rv) return rv;
+
+    sdc_xchg8(token);
+    if (buffer && len) {
+        sdc_buf_send(buffer, len);
+        sdc_xchg16(0xffff); /* dummy CRC */
+
+        d = sdc_xchg8(0xff); /* Response */
+        if ((d & SDC_DRESP_MASK) != SDC_DRESP_ACCEPT) return EOS_ERR;
+    }
+
+    return EOS_OK;
+}
+
+static int sdc_cmd(uint8_t cmd, uint32_t arg, uint8_t flags, uint32_t timeout) {
+    int do_cs = !(flags & SDC_CMD_FLAG_NOCS);
+    int do_wait = !(flags & SDC_CMD_FLAG_NOWAIT);
+    int rv = EOS_OK;
+
+    if (do_cs) sdc_select();
+    if (do_wait) rv = sdc_ready(timeout);
+    if (rv) {
+        if (do_cs) sdc_deselect();
+        return rv;
+    }
+    rv = sdc_xchg_cmd(cmd, arg, flags);
+    if (do_cs) sdc_deselect();
+    return rv;
+}
+
+static int sdc_acmd(uint8_t cmd, uint32_t arg, uint8_t flags, uint32_t timeout) {
+    int rv;
+    uint32_t start;
+
+    start = eos_time_get_tick();
+    rv = sdc_cmd(APP_CMD, 0, flags, timeout);
+    if (rv & ~SDC_R1_IDLE_STATE) return rv;
+
+    if (flags & SDC_CMD_FLAG_NOCS) {
+        sdc_deselect();
+        sdc_select();
+    }
+    return sdc_cmd(cmd, arg, flags, sdc_nto(start, timeout));
+}
+
+static int sdc_init(uint32_t timeout) {
+    int rv, i;
+    uint8_t _type;
+    uint8_t ocr[4];
+    uint32_t start;
+    start = eos_time_get_tick();
+
+    eos_time_sleep(100);
+    for (i=10; i--;) sdc_xchg8(0xff);     /* 80 dummy cycles */
+
+    rv = sdc_cmd(GO_IDLE_STATE, 0, SDC_CMD_FLAG_CRC, SDC_TIMEOUT_CMD);
+    if (rv != SDC_R1_IDLE_STATE) return SDC_ERR(rv);
+
+    sdc_select();
+    rv = sdc_cmd(SEND_IF_COND, 0x1aa, SDC_CMD_FLAG_CRC | SDC_CMD_FLAG_NOCS, sdc_nto(start, timeout));
+    switch (rv) {
+        case SDC_R1_IDLE_STATE:
+            for (i=0; i<4; i++) {   /* R7 response */
+                ocr[i] = sdc_xchg8(0xff);
+            }
+            sdc_deselect();
+            if (ocr[2] == 0x01 && ocr[3] == 0xaa) {     /* Check voltage range: 2.7-3.6V */
+                do {
+                    rv = sdc_acmd(SD_APP_OP_COND, 0x40000000, 0, sdc_nto(start, timeout));
+                } while (rv == SDC_R1_IDLE_STATE);
+                if (rv != SDC_R1_READY) return SDC_ERR(rv);
+
+                sdc_select();
+                rv = sdc_cmd(READ_OCR, 0, SDC_CMD_FLAG_NOCS, sdc_nto(start, timeout));
+                if (rv == SDC_R1_READY) {
+                    for (i=0; i<4; i++) {   /* R7 response */
+                        ocr[i] = sdc_xchg8(0xff);
+                    }
+                    sdc_deselect();
+                } else {
+                    sdc_deselect();
+                    return SDC_ERR(rv);
+                }
+
+                _type = EOS_SDC_TYPE_SDC2;
+                if (ocr[0] & 0xc0) _type |= EOS_SDC_CAP_BLK;
+            }
+            break;
+
+        case SDC_R1_IDLE_STATE | SDC_R1_ILLEGAL_CMD:
+            sdc_deselect();
+            rv = sdc_acmd(SD_APP_OP_COND, 0, 0, sdc_nto(start, timeout));
+            switch (rv) {
+                case SDC_R1_IDLE_STATE:
+                    do  {
+                        rv = sdc_acmd(SD_APP_OP_COND, 0, 0, sdc_nto(start, timeout));
+                    } while (rv == SDC_R1_IDLE_STATE);
+                    if (rv != SDC_R1_READY) return SDC_ERR(rv);
+                case SDC_R1_READY:
+                    _type = EOS_SDC_TYPE_SDC1;
+                    break;
+
+                default:
+                    do {
+                        rv = sdc_cmd(SEND_OP_COND, 0, 0, sdc_nto(start, timeout));
+                    } while (rv == SDC_R1_IDLE_STATE);
+                    if (rv != SDC_R1_READY) return SDC_ERR(rv);
+                    _type = EOS_SDC_TYPE_MMC;
+                    break;
+
+            }
+            break;
+
+        default:
+            sdc_deselect();
+            return SDC_ERR(rv);
+    }
+
+    if (!(_type & EOS_SDC_CAP_BLK)) {
+        rv = sdc_cmd(SET_BLOCKLEN, 512, 0, sdc_nto(start, timeout));
+        if (rv != SDC_R1_READY) return SDC_ERR(rv);
+    }
+
+    if (_type & EOS_SDC_TYPE_SDC) {
+        uint8_t csd[16];
+
+        sdc_select();
+        rv = sdc_cmd(SEND_CSD, 0, SDC_CMD_FLAG_NOCS, sdc_nto(start, timeout));
+        if (rv == SDC_R1_READY) {
+            rv = sdc_block_read(csd, 16, sdc_nto(start, timeout));
+        } else {
+            rv = SDC_ERR(rv);
+        }
+        sdc_deselect();
+        if (rv) return rv;
+
+        for (i=0; i<16; i++) {
+            printf("%.2x ", csd[i]);
+        }
+        printf("\n");
+        if (csd[10] & 0x40) _type |= EOS_SDC_CAP_ERASE_EN;
+    }
+
+    eos_spi_set_div(EOS_SPI_DEV_SDC, 5);
+    sdc_type = _type;
+    return EOS_OK;
+}
+
+int eos_sdc_init(uint8_t wakeup_cause) {
+    int rv;
+
+    eos_spi_select(EOS_SPI_DEV_SDC);
+    rv = sdc_init(5000);
+    if (rv) {
+        printf("SDC ERROR\n");
+    } else {
+        printf("SDC OK:%x\n", sdc_type);
+    }
+    eos_spi_deselect();
+
+    return EOS_OK;
+}
+
+uint8_t eos_sdc_type(void) {
+    return sdc_type & EOS_SDC_TYPE_MASK;
+}
+
+uint8_t eos_sdc_cap(void) {
+    return sdc_type & EOS_SDC_CAP_MASK;
+}
+
+int eos_sdc_get_sect_count(uint32_t timeout, uint32_t *sectors) {
+    int rv;
+    uint8_t csd[16];
+    uint32_t start = eos_time_get_tick();
+
+    sdc_select();
+    rv = sdc_cmd(SEND_CSD, 0, SDC_CMD_FLAG_NOCS, timeout);
+    if (rv == SDC_R1_READY) {
+        rv = sdc_block_read(csd, 16, sdc_nto(start, timeout));
+    } else {
+        rv = SDC_ERR(rv);
+    }
+    sdc_deselect();
+    if (rv) return rv;
+
+    if ((csd[0] >> 6) == 1) {   /* SDCv2 */
+        *sectors = (csd[9] + (csd[8] << 8) + ((csd[7] & 0x3f) << 16) + 1) << 10;
+    } else {                    /* SDCv1 or MMC*/
+        uint8_t n = (csd[5] & 0x0f) + (csd[10] >> 7) + ((csd[9] & 0x03) << 1) + 2;
+        *sectors = (csd[8] >> 6) + (csd[7] << 2) + ((csd[6] & 0x03) << 10) + 1;
+        *sectors = *sectors << (n - 9);
+    }
+
+    return EOS_OK;
+}
+
+int eos_sdc_get_blk_size(uint32_t timeout, uint32_t *size) {
+    int rv;
+    uint8_t rbl[64];    /* SD Status or CSD register */
+    uint32_t start = eos_time_get_tick();
+
+    sdc_select();
+    if (sdc_type & EOS_SDC_TYPE_SDC2) {
+        rv = sdc_acmd(SD_STATUS, 0, SDC_CMD_FLAG_NOCS, timeout);
+        sdc_xchg8(0xff);    /* R2 response */
+    } else {
+        rv = sdc_cmd(SEND_CSD, 0, SDC_CMD_FLAG_NOCS, timeout);
+    }
+    if (rv == SDC_R1_READY) {
+        rv = sdc_block_read(rbl, (sdc_type & EOS_SDC_TYPE_SDC2) ? 64 : 16, sdc_nto(start, timeout));
+    } else {
+        rv = SDC_ERR(rv);
+    }
+    sdc_deselect();
+    if (rv) return rv;
+
+    if (sdc_type & EOS_SDC_TYPE_SDC2) {
+        *size = 16UL << (rbl[10] >> 4);
+    } else if (sdc_type & EOS_SDC_TYPE_SDC1) {
+        *size = (((rbl[10] & 0x3f) << 1) + (rbl[11] >> 7) + 1) << ((rbl[13] >> 6) - 1);
+    } else {
+        *size = (((rbl[10] & 0x7c) >> 2) + 1) * (((rbl[11] & 0x03) << 3) + (rbl[11] >> 5) + 1);
+    }
+
+    return EOS_OK;
+}
+
+int eos_sdc_sync(uint32_t timeout) {
+    int rv;
+
+    sdc_select();
+    rv = sdc_ready(timeout);
+    sdc_deselect();
+
+    return rv;
+}
+
+int eos_sdc_erase(uint32_t blk_start, uint32_t blk_end, uint32_t timeout) {
+    int rv;
+    uint32_t start;
+
+    if (!(sdc_type & EOS_SDC_TYPE_SDC)) return EOS_ERR;
+    if (!(sdc_type & EOS_SDC_CAP_ERASE_EN)) return EOS_ERR;
+    if (!(sdc_type & EOS_SDC_CAP_BLK)) {
+        blk_start *= 512;
+        blk_end *= 512;
+    }
+
+    start = eos_time_get_tick();
+    rv = sdc_cmd(ERASE_WR_BLK_START, blk_start, 0, timeout);
+    if (rv != SDC_R1_READY) return SDC_ERR(rv);
+
+    rv = sdc_cmd(ERASE_WR_BLK_END, blk_end, 0, sdc_nto(start, timeout));
+    if (rv != SDC_R1_READY) return SDC_ERR(rv);
+
+    rv = sdc_cmd(ERASE, 0, 0, sdc_nto(start, timeout));
+    if (rv != SDC_R1_READY) return SDC_ERR(rv);
+
+    return eos_sdc_sync(sdc_nto(start, timeout));
+}
+
+int eos_sdc_sect_read(uint32_t sect, unsigned int count, uint8_t *buffer) {
+    int rv;
+    uint8_t cmd = ((count == 1) ? READ_SINGLE_BLOCK : READ_MULTIPLE_BLOCK);
+
+    if (!(sdc_type & EOS_SDC_CAP_BLK)) sect *= 512;
+
+    sdc_select();
+    rv = sdc_cmd(cmd, sect, SDC_CMD_FLAG_NOCS, SDC_TIMEOUT_CMD);
+    if (rv == SDC_R1_READY) {
+        int _rv = SDC_R1_READY;
+
+        while (count) {
+            rv = sdc_block_read(buffer, 512, SDC_TIMEOUT_READ);
+            if (rv) break;
+            eos_sdcc_decrypt(sect, buffer);
+            buffer += 512;
+            count--;
+        }
+        if (cmd == READ_MULTIPLE_BLOCK) _rv = sdc_cmd(STOP_TRANSMISSION, 0, SDC_CMD_FLAG_NOCS | SDC_CMD_FLAG_NOWAIT | SDC_CMD_FLAG_RSTUFF, 0);
+        if (!rv && (_rv != SDC_R1_READY)) rv = SDC_ERR(_rv);
+    } else {
+        rv = SDC_ERR(rv);
+    }
+    sdc_deselect();
+
+    return rv;
+}
+
+int eos_sdc_sect_write(uint32_t sect, unsigned int count, uint8_t *buffer) {
+    int rv;
+
+    if (!(sdc_type & EOS_SDC_CAP_BLK)) sect *= 512;
+
+    if (count == 1) {
+        sdc_select();
+        rv = sdc_cmd(WRITE_BLOCK, sect, SDC_CMD_FLAG_NOCS, SDC_TIMEOUT_CMD);
+        if (rv == SDC_R1_READY) {
+            eos_sdcc_encrypt(sect, buffer);
+            rv = sdc_block_write(SDC_TOKEN_START_BLK, buffer, 512, SDC_TIMEOUT_WRITE);
+        } else {
+            rv = SDC_ERR(rv);
+        }
+        sdc_deselect();
+    } else {
+        if (sdc_type & EOS_SDC_TYPE_SDC) {
+            rv = sdc_acmd(SET_WR_BLK_ERASE_COUNT, count, 0, SDC_TIMEOUT_CMD);
+            if (rv != SDC_R1_READY) return SDC_ERR(rv);
+        }
+
+        sdc_select();
+        rv = sdc_cmd(WRITE_MULTIPLE_BLOCK, sect, SDC_CMD_FLAG_NOCS, SDC_TIMEOUT_CMD);
+        if (rv == SDC_R1_READY) {
+            int _rv;
+
+            while (count) {
+                eos_sdcc_encrypt(sect, buffer);
+                rv = sdc_block_write(SDC_TOKEN_START_BLKM, buffer, 512, SDC_TIMEOUT_WRITE);
+                if (rv) break;
+                buffer += 512;
+                count--;
+            }
+            _rv = sdc_block_write(SDC_TOKEN_STOP_TRAN, NULL, 0, SDC_TIMEOUT_WRITE);
+            if (!rv && (_rv != SDC_R1_READY)) rv = SDC_ERR(_rv);
+        } else {
+            rv = SDC_ERR(rv);
+        }
+        sdc_deselect();
+    }
+
+    return rv;
+}
diff --git a/fw/fe310/eos/dev/sdcard.h b/fw/fe310/eos/dev/sdcard.h
new file mode 100644
index 0000000..910a6e0
--- /dev/null
+++ b/fw/fe310/eos/dev/sdcard.h
@@ -0,0 +1,22 @@
+#include <stdint.h>
+
+#define EOS_SDC_TYPE_MMC            0x01
+
+#define EOS_SDC_TYPE_SDC1           0x04
+#define EOS_SDC_TYPE_SDC2           0x08
+#define EOS_SDC_TYPE_SDC            0x0c
+#define EOS_SDC_TYPE_MASK           0x0f
+
+#define EOS_SDC_CAP_BLK             0x10
+#define EOS_SDC_CAP_ERASE_EN        0x20
+#define EOS_SDC_CAP_MASK            0xf0
+
+int eos_sdc_init(uint8_t wakeup_cause);
+uint8_t eos_sdc_type(void);
+uint8_t eos_sdc_cap(void);
+int eos_sdc_get_sect_count(uint32_t timeout, uint32_t *sectors);
+int eos_sdc_get_blk_size(uint32_t timeout, uint32_t *size);
+int eos_sdc_sync(uint32_t timeout);
+int eos_sdc_erase(uint32_t blk_start, uint32_t blk_end, uint32_t timeout);
+int eos_sdc_sect_read(uint32_t sect, unsigned int count, uint8_t *buffer);
+int eos_sdc_sect_write(uint32_t sect, unsigned int count, uint8_t *buffer);