diff options
Diffstat (limited to 'board/ti/dra7xx')
| -rw-r--r-- | board/ti/dra7xx/evm.c | 56 | ||||
| -rw-r--r-- | board/ti/dra7xx/mux_data.h | 60 |
2 files changed, 100 insertions, 16 deletions
diff --git a/board/ti/dra7xx/evm.c b/board/ti/dra7xx/evm.c index 060c471032..179adc2fff 100644 --- a/board/ti/dra7xx/evm.c +++ b/board/ti/dra7xx/evm.c @@ -27,6 +27,7 @@ #include <environment.h> #include <dwc3-uboot.h> #include <dwc3-omap-uboot.h> +#include <i2c.h> #include <ti-usb-phy-uboot.h> #include <miiphy.h> @@ -55,6 +56,10 @@ DECLARE_GLOBAL_DATA_PTR; #define SYSINFO_BOARD_NAME_MAX_LEN 37 +/* I2C I/O Expander */ +#define NAND_PCF8575_ADDR 0x21 +#define NAND_PCF8575_I2C_BUS_NUM 0 + const struct omap_sysinfo sysinfo = { "Board: UNKNOWN(DRA7 EVM) REV UNKNOWN\n" }; @@ -777,6 +782,44 @@ void set_muxconf_regs(void) early_padconf, ARRAY_SIZE(early_padconf)); } +#if defined(CONFIG_NAND) +static int nand_sw_detect(void) +{ + int rc; + uchar data[2]; + struct udevice *dev; + + rc = i2c_get_chip_for_busnum(NAND_PCF8575_I2C_BUS_NUM, + NAND_PCF8575_ADDR, 0, &dev); + if (rc) + return -1; + + rc = dm_i2c_read(dev, 0, (uint8_t *)&data, sizeof(data)); + if (rc) + return -1; + + /* We are only interested in P10 and P11 on PCF8575 which is equal to + * bits 8 and 9. + */ + data[1] = data[1] & 0x3; + + /* Ensure only P11 is set and P10 is cleared. This ensures only + * NAND (P10) is configured and not NOR (P11) which are both low + * true signals. NAND and NOR settings should not be enabled at + * the same time. + */ + if (data[1] == 0x2) + return 0; + + return -1; +} +#else +int nand_sw_detect(void) +{ + return -1; +} +#endif + #ifdef CONFIG_IODELAY_RECALIBRATION void recalibrate_iodelay(void) { @@ -796,6 +839,19 @@ void recalibrate_iodelay(void) npads = ARRAY_SIZE(dra71x_core_padconf_array); iodelay = dra71_iodelay_cfg_array; niodelays = ARRAY_SIZE(dra71_iodelay_cfg_array); + /* If SW8 on the EVM is set to enable NAND then + * overwrite the pins used by VOUT3 with NAND. + */ + if (!nand_sw_detect()) { + delta_pads = dra71x_nand_padconf_array; + delta_npads = + ARRAY_SIZE(dra71x_nand_padconf_array); + } else { + delta_pads = dra71x_vout3_padconf_array; + delta_npads = + ARRAY_SIZE(dra71x_vout3_padconf_array); + } + } else if (board_is_dra72x_revc_or_later()) { delta_pads = dra72x_rgmii_padconf_array_revc; delta_npads = diff --git a/board/ti/dra7xx/mux_data.h b/board/ti/dra7xx/mux_data.h index f1f6bd5316..75da5cb608 100644 --- a/board/ti/dra7xx/mux_data.h +++ b/board/ti/dra7xx/mux_data.h @@ -220,22 +220,6 @@ const struct pad_conf_entry dra72x_rgmii_padconf_array_revc[] = { }; const struct pad_conf_entry dra71x_core_padconf_array[] = { - {GPMC_AD0, (M3 | PIN_INPUT)}, /* gpmc_ad0.vout3_d0 */ - {GPMC_AD1, (M3 | PIN_INPUT)}, /* gpmc_ad1.vout3_d1 */ - {GPMC_AD2, (M3 | PIN_INPUT)}, /* gpmc_ad2.vout3_d2 */ - {GPMC_AD3, (M3 | PIN_INPUT)}, /* gpmc_ad3.vout3_d3 */ - {GPMC_AD4, (M3 | PIN_INPUT)}, /* gpmc_ad4.vout3_d4 */ - {GPMC_AD5, (M3 | PIN_INPUT)}, /* gpmc_ad5.vout3_d5 */ - {GPMC_AD6, (M3 | PIN_INPUT)}, /* gpmc_ad6.vout3_d6 */ - {GPMC_AD7, (M3 | PIN_INPUT)}, /* gpmc_ad7.vout3_d7 */ - {GPMC_AD8, (M3 | PIN_INPUT)}, /* gpmc_ad8.vout3_d8 */ - {GPMC_AD9, (M3 | PIN_INPUT)}, /* gpmc_ad9.vout3_d9 */ - {GPMC_AD10, (M3 | PIN_INPUT)}, /* gpmc_ad10.vout3_d10 */ - {GPMC_AD11, (M3 | PIN_INPUT)}, /* gpmc_ad11.vout3_d11 */ - {GPMC_AD12, (M3 | PIN_INPUT)}, /* gpmc_ad12.vout3_d12 */ - {GPMC_AD13, (M3 | PIN_INPUT)}, /* gpmc_ad13.vout3_d13 */ - {GPMC_AD14, (M3 | PIN_INPUT)}, /* gpmc_ad14.vout3_d14 */ - {GPMC_AD15, (M3 | PIN_INPUT)}, /* gpmc_ad15.vout3_d15 */ {GPMC_A0, (M3 | PIN_INPUT_PULLDOWN)}, /* gpmc_a0.vout3_d16 */ {GPMC_A1, (M3 | PIN_INPUT_PULLDOWN)}, /* gpmc_a1.vout3_d17 */ {GPMC_A2, (M3 | PIN_INPUT_PULLDOWN)}, /* gpmc_a2.vout3_d18 */ @@ -370,6 +354,50 @@ const struct pad_conf_entry dra71x_core_padconf_array[] = { {WAKEUP3, (M1 | PULL_ENA | PULL_UP)}, /* Wakeup3.sys_nirq1 */ }; +const struct pad_conf_entry dra71x_vout3_padconf_array[] = { + {GPMC_AD0, (M3 | PIN_INPUT)}, /* gpmc_ad0.vout3_d0 */ + {GPMC_AD1, (M3 | PIN_INPUT)}, /* gpmc_ad1.vout3_d1 */ + {GPMC_AD2, (M3 | PIN_INPUT)}, /* gpmc_ad2.vout3_d2 */ + {GPMC_AD3, (M3 | PIN_INPUT)}, /* gpmc_ad3.vout3_d3 */ + {GPMC_AD4, (M3 | PIN_INPUT)}, /* gpmc_ad4.vout3_d4 */ + {GPMC_AD5, (M3 | PIN_INPUT)}, /* gpmc_ad5.vout3_d5 */ + {GPMC_AD6, (M3 | PIN_INPUT)}, /* gpmc_ad6.vout3_d6 */ + {GPMC_AD7, (M3 | PIN_INPUT)}, /* gpmc_ad7.vout3_d7 */ + {GPMC_AD8, (M3 | PIN_INPUT)}, /* gpmc_ad8.vout3_d8 */ + {GPMC_AD9, (M3 | PIN_INPUT)}, /* gpmc_ad9.vout3_d9 */ + {GPMC_AD10, (M3 | PIN_INPUT)}, /* gpmc_ad10.vout3_d10 */ + {GPMC_AD11, (M3 | PIN_INPUT)}, /* gpmc_ad11.vout3_d11 */ + {GPMC_AD12, (M3 | PIN_INPUT)}, /* gpmc_ad12.vout3_d12 */ + {GPMC_AD13, (M3 | PIN_INPUT)}, /* gpmc_ad13.vout3_d13 */ + {GPMC_AD14, (M3 | PIN_INPUT)}, /* gpmc_ad14.vout3_d14 */ + {GPMC_AD15, (M3 | PIN_INPUT)}, /* gpmc_ad15.vout3_d15 */ +}; + +const struct pad_conf_entry dra71x_nand_padconf_array[] = { + {GPMC_AD0, (M0 | PIN_INPUT)}, /* gpmc_ad0.gpmc_ad0 */ + {GPMC_AD1, (M0 | PIN_INPUT)}, /* gpmc_ad1.gpmc_ad1 */ + {GPMC_AD2, (M0 | PIN_INPUT)}, /* gpmc_ad2.gpmc_ad2 */ + {GPMC_AD3, (M0 | PIN_INPUT)}, /* gpmc_ad3.gpmc_ad3 */ + {GPMC_AD4, (M0 | PIN_INPUT)}, /* gpmc_ad4.gpmc_ad4 */ + {GPMC_AD5, (M0 | PIN_INPUT)}, /* gpmc_ad5.gpmc_ad5 */ + {GPMC_AD6, (M0 | PIN_INPUT)}, /* gpmc_ad6.gpmc_ad6 */ + {GPMC_AD7, (M0 | PIN_INPUT)}, /* gpmc_ad7.gpmc_ad7 */ + {GPMC_AD8, (M0 | PIN_INPUT)}, /* gpmc_ad8.gpmc_ad8 */ + {GPMC_AD9, (M0 | PIN_INPUT)}, /* gpmc_ad9.gpmc_ad9 */ + {GPMC_AD10, (M0 | PIN_INPUT)}, /* gpmc_ad10.gpmc_ad10 */ + {GPMC_AD11, (M0 | PIN_INPUT)}, /* gpmc_ad11.gpmc_ad11 */ + {GPMC_AD12, (M0 | PIN_INPUT)}, /* gpmc_ad12.gpmc_ad12 */ + {GPMC_AD13, (M0 | PIN_INPUT)}, /* gpmc_ad13.gpmc_ad13 */ + {GPMC_AD14, (M0 | PIN_INPUT)}, /* gpmc_ad14.gpmc_ad14 */ + {GPMC_AD15, (M0 | PIN_INPUT)}, /* gpmc_ad15.gpmc_ad15 */ + {GPMC_CS0, (M0 | PIN_INPUT_PULLUP)}, /* gpmc_cs0.gpmc_cs0 */ + {GPMC_ADVN_ALE, (M0 | PIN_INPUT_PULLDOWN)}, /* gpmc_advn_ale.gpmc_advn_ale */ + {GPMC_OEN_REN, (M0 | PIN_INPUT_PULLUP)}, /* gpmc_oen_ren.gpmc_oen_ren */ + {GPMC_WEN, (M0 | PIN_INPUT_PULLUP)}, /* gpmc_wen.gpmc_wen */ + {GPMC_BEN0, (M0 | PIN_INPUT_PULLDOWN)}, /* gpmc_ben0.gpmc_ben0 */ + {GPMC_WAIT0, (M0 | PIN_INPUT_PULLUP | SLEWCONTROL)}, /* gpmc_wait0.gpmc_wait0 */ +}; + const struct pad_conf_entry early_padconf[] = { {UART1_RXD, (PIN_INPUT_SLEW | M0)}, /* UART1_RXD */ {UART1_TXD, (PIN_INPUT_SLEW | M0)}, /* UART1_TXD */ |