diff options
Diffstat (limited to 'board/gateworks/gw_ventana/gw_ventana_spl.c')
| -rw-r--r-- | board/gateworks/gw_ventana/gw_ventana_spl.c | 45 |
1 files changed, 41 insertions, 4 deletions
diff --git a/board/gateworks/gw_ventana/gw_ventana_spl.c b/board/gateworks/gw_ventana/gw_ventana_spl.c index 0a6ad47c7d..e7f699a2b5 100644 --- a/board/gateworks/gw_ventana/gw_ventana_spl.c +++ b/board/gateworks/gw_ventana/gw_ventana_spl.c @@ -15,6 +15,7 @@ #include <asm/imx-common/iomux-v3.h> #include <asm/imx-common/mxc_i2c.h> #include <environment.h> +#include <i2c.h> #include <spl.h> #include "gsc.h" @@ -189,6 +190,20 @@ static struct mx6_ddr3_cfg mt41k256m16ha_125 = { .trasmin = 3500, }; +/* MT41K512M16HA-125 (8Gb density) */ +static struct mx6_ddr3_cfg mt41k512m16ha_125 = { + .mem_speed = 1600, + .density = 8, + .width = 16, + .banks = 8, + .rowaddr = 16, + .coladdr = 10, + .pagesz = 2, + .trcd = 1375, + .trcmin = 4875, + .trasmin = 3500, +}; + /* * calibration - these are the various CPU/DDR3 combinations we support */ @@ -340,6 +355,19 @@ static struct mx6_mmdc_calibration mx6dq_256x64_mmdc_calib = { .p1_mpwrdlctl = 0X40304239, }; +static struct mx6_mmdc_calibration mx6dq_512x32_mmdc_calib = { + /* write leveling calibration determine */ + .p0_mpwldectrl0 = 0x002A0025, + .p0_mpwldectrl1 = 0x003A002A, + /* Read DQS Gating calibration */ + .p0_mpdgctrl0 = 0x43430356, + .p0_mpdgctrl1 = 0x033C0335, + /* Read Calibration: DQS delay relative to DQ read access */ + .p0_mprddlctl = 0x4B373F42, + /* Write Calibration: DQ/DM delay relative to DQS write access */ + .p0_mpwrdlctl = 0x303E3C36, +}; + static void spl_dram_init(int width, int size_mb, int board_model) { struct mx6_ddr3_cfg *mem = NULL; @@ -419,6 +447,11 @@ static void spl_dram_init(int width, int size_mb, int board_model) else calib = &mx6sdl_256x32_mmdc_calib; debug("4gB density\n"); + } else if (width == 32 && size_mb == 2048) { + mem = &mt41k512m16ha_125; + if (is_cpu_type(MXC_CPU_MX6Q)) + calib = &mx6dq_512x32_mmdc_calib; + debug("8gB density\n"); } else if (width == 64 && size_mb == 512) { mem = &mt41k64m16jt_125; debug("1gB density\n"); @@ -526,9 +559,6 @@ void board_init_f(ulong dummy) /* Clear the BSS. */ memset(__bss_start, 0, __bss_end - __bss_start); - - /* disable boot watchdog */ - gsc_boot_wd_disable(); } /* called from board_init_r after gd setup if CONFIG_SPL_BOARD_INIT defined */ @@ -560,7 +590,7 @@ void spl_board_init(void) /* return 1 if we wish to boot to uboot vs os (falcon mode) */ int spl_start_uboot(void) { - int ret = 1; + unsigned char ret = 1; debug("%s\n", __func__); #ifdef CONFIG_SPL_ENV_SUPPORT @@ -569,7 +599,14 @@ int spl_start_uboot(void) debug("boot_os=%s\n", getenv("boot_os")); if (getenv_yesno("boot_os") == 1) ret = 0; +#else + /* use i2c-0:0x50:0x00 for falcon boot mode (0=linux, else uboot) */ + i2c_set_bus_num(0); + gsc_i2c_read(0x50, 0x0, 1, &ret, 1); #endif + if (!ret) + gsc_boot_wd_disable(); + debug("%s booting %s\n", __func__, ret ? "uboot" : "linux"); return ret; } |
