diff options
Diffstat (limited to 'board/olimex/mx23_olinuxino/mx23_olinuxino.c')
| -rw-r--r-- | board/olimex/mx23_olinuxino/mx23_olinuxino.c | 46 |
1 files changed, 44 insertions, 2 deletions
diff --git a/board/olimex/mx23_olinuxino/mx23_olinuxino.c b/board/olimex/mx23_olinuxino/mx23_olinuxino.c index e2a03a1..313ab20 100644 --- a/board/olimex/mx23_olinuxino/mx23_olinuxino.c +++ b/board/olimex/mx23_olinuxino/mx23_olinuxino.c @@ -30,13 +30,25 @@ int board_early_init_f(void) /* SSP0 clock at 96MHz */ mxs_set_sspclk(MXC_SSPCLK0, 96000, 0); + return 0; +} + #ifdef CONFIG_CMD_USB - /* Enable LAN9512 */ +int board_ehci_hcd_init(int port) +{ + /* Enable LAN9512 (Maxi) or GL850G (Mini) USB HUB power. */ gpio_direction_output(MX23_PAD_GPMI_ALE__GPIO_0_17, 1); -#endif + udelay(100); + return 0; +} +int board_ehci_hcd_exit(int port) +{ + /* Enable LAN9512 (Maxi) or GL850G (Mini) USB HUB power. */ + gpio_direction_output(MX23_PAD_GPMI_ALE__GPIO_0_17, 0); return 0; } +#endif int dram_init(void) { @@ -66,3 +78,33 @@ int board_init(void) return 0; } + +/* Fine-tune the DRAM configuration. */ +void mxs_adjust_memory_params(uint32_t *dram_vals) +{ + /* Enable Auto Precharge. */ + dram_vals[3] |= 1 << 8; + /* Enable Fast Writes. */ + dram_vals[5] |= 1 << 8; + /* tEMRS = 3*tCK */ + dram_vals[10] &= ~(0x3 << 8); + dram_vals[10] |= (0x3 << 8); + /* CASLAT = 3*tCK */ + dram_vals[11] &= ~(0x3 << 0); + dram_vals[11] |= (0x3 << 0); + /* tCKE = 1*tCK */ + dram_vals[12] &= ~(0x7 << 0); + dram_vals[12] |= (0x1 << 0); + /* CASLAT_LIN_GATE = 3*tCK , CASLAT_LIN = 3*tCK, tWTR=2*tCK */ + dram_vals[13] &= ~((0xf << 16) | (0xf << 24) | (0xf << 0)); + dram_vals[13] |= (0x6 << 16) | (0x6 << 24) | (0x2 << 0); + /* tDAL = 6*tCK */ + dram_vals[15] &= ~(0xf << 16); + dram_vals[15] |= (0x6 << 16); + /* tREF = 1040*tCK */ + dram_vals[26] &= ~0xffff; + dram_vals[26] |= 0x0410; + /* tRAS_MAX = 9334*tCK */ + dram_vals[32] &= ~0xffff; + dram_vals[32] |= 0x2475; +} |