#include <asm/arch/sys_proto.h>
#include <asm/arch/hardware.h>
#include <asm/io.h>
+#include <i2c.h>
#define MUX_CFG(value, offset) \
__raw_writel(value, (CTRL_BASE + offset));
{-1},
};
+static struct module_pin_mux mmc1_pin_mux[] = {
+ {OFFSET(gpmc_ad3), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT3 */
+ {OFFSET(gpmc_ad2), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT2 */
+ {OFFSET(gpmc_ad1), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT1 */
+ {OFFSET(gpmc_ad0), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT0 */
+ {OFFSET(gpmc_csn1), (MODE(2) | RXACTIVE | PULLUP_EN)}, /* MMC1_CLK */
+ {OFFSET(gpmc_csn2), (MODE(2) | RXACTIVE | PULLUP_EN)}, /* MMC1_CMD */
+ {OFFSET(gpmc_csn0), (MODE(7) | RXACTIVE | PULLUP_EN)}, /* MMC1_WP */
+ {OFFSET(gpmc_advn_ale), (MODE(7) | RXACTIVE | PULLUP_EN)}, /* MMC1_CD */
+ {-1},
+};
+
static struct module_pin_mux i2c0_pin_mux[] = {
{OFFSET(i2c0_sda), (MODE(0) | RXACTIVE |
PULLUDEN | SLEWCTRL)}, /* I2C_DATA */
{-1},
};
+static struct module_pin_mux spi0_pin_mux[] = {
+ {OFFSET(spi0_sclk), (MODE(0) | RXACTIVE | PULLUDEN)}, /* SPI0_SCLK */
+ {OFFSET(spi0_d0), (MODE(0) | RXACTIVE |
+ PULLUDEN | PULLUP_EN)}, /* SPI0_D0 */
+ {OFFSET(spi0_d1), (MODE(0) | RXACTIVE | PULLUDEN)}, /* SPI0_D1 */
+ {OFFSET(spi0_cs0), (MODE(0) | RXACTIVE |
+ PULLUDEN | PULLUP_EN)}, /* SPI0_CS0 */
+ {-1},
+};
+
static struct module_pin_mux gpio0_7_pin_mux[] = {
{OFFSET(ecap0_in_pwm0_out), (MODE(7) | PULLUDEN)}, /* GPIO0_7 */
{-1},
configure_module_pin_mux(i2c0_pin_mux);
}
-void enable_board_pin_mux(struct am335x_baseboard_id *header)
+/*
+ * The AM335x GP EVM, if daughter card(s) are connected, can have 8
+ * different profiles. These profiles determine what peripherals are
+ * valid and need pinmux to be configured.
+ */
+#define PROFILE_NONE 0x0
+#define PROFILE_0 (1 << 0)
+#define PROFILE_1 (1 << 1)
+#define PROFILE_2 (1 << 2)
+#define PROFILE_3 (1 << 3)
+#define PROFILE_4 (1 << 4)
+#define PROFILE_5 (1 << 5)
+#define PROFILE_6 (1 << 6)
+#define PROFILE_7 (1 << 7)
+#define PROFILE_MASK 0x7
+#define PROFILE_ALL 0xFF
+
+/* CPLD registers */
+#define I2C_CPLD_ADDR 0x35
+#define CFG_REG 0x10
+
+static unsigned short detect_daughter_board_profile(void)
{
- /* Enable pinmux that is common to all TI boards. */
- configure_module_pin_mux(i2c1_pin_mux);
+ unsigned short val;
+
+ if (i2c_probe(I2C_CPLD_ADDR))
+ return PROFILE_NONE;
+
+ if (i2c_read(I2C_CPLD_ADDR, CFG_REG, 1, (unsigned char *)(&val), 2))
+ return PROFILE_NONE;
- /* Now do board-specific muxes. */
+ return (1 << (val & PROFILE_MASK));
+}
+
+void enable_board_pin_mux(struct am335x_baseboard_id *header)
+{
+ /* Do board-specific muxes. */
if (!strncmp(header->name, "A335BONE", HDR_NAME_LEN)) {
/* Beaglebone pinmux */
+ configure_module_pin_mux(i2c1_pin_mux);
configure_module_pin_mux(mii1_pin_mux);
configure_module_pin_mux(mmc0_pin_mux);
+ configure_module_pin_mux(mmc1_pin_mux);
} else if (!strncmp(header->config, "SKU#01", 6)) {
/* General Purpose EVM */
+ unsigned short profile = detect_daughter_board_profile();
configure_module_pin_mux(rgmii1_pin_mux);
configure_module_pin_mux(mmc0_pin_mux);
+ /* In profile #2 i2c1 and spi0 conflict. */
+ if (profile & ~PROFILE_2)
+ configure_module_pin_mux(i2c1_pin_mux);
+ else if (profile == PROFILE_2) {
+ configure_module_pin_mux(mmc1_pin_mux);
+ configure_module_pin_mux(spi0_pin_mux);
+ }
} else if (!strncmp(header->name, "A335X_SK", HDR_NAME_LEN)) {
/* Starter Kit EVM */
+ configure_module_pin_mux(i2c1_pin_mux);
configure_module_pin_mux(gpio0_7_pin_mux);
configure_module_pin_mux(rgmii1_pin_mux);
configure_module_pin_mux(mmc0_pin_mux_sk_evm);