@@ -17,6 +17,7 @@
#include <linux/console.h>
#include <linux/i2c.h>
#include <linux/i2c/at24.h>
+#include <linux/i2c/pca953x.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
@@ -144,10 +145,85 @@ static struct platform_device da850_evm_nandflash_device = {
.resource = da850_evm_nandflash_resource,
};
+static u32 ui_card_detected;
+static void da850_evm_setup_nor_nand(void);
+
+static int da850_evm_ui_expander_setup(struct i2c_client *client, unsigned gpio,
+ unsigned ngpio, void *c)
+{
+ int sel_a, sel_b, sel_c, ret;
+
+ sel_a = gpio + 7;
+ sel_b = gpio + 6;
+ sel_c = gpio + 5;
+
+ ret = gpio_request(sel_a, "sel_a");
+ if (ret) {
+ pr_warning("Cannot open UI expander pin %d\n", sel_a);
+ goto exp_setup_sela_fail;
+ }
+
+ ret = gpio_request(sel_b, "sel_b");
+ if (ret) {
+ pr_warning("Cannot open UI expander pin %d\n", sel_b);
+ goto exp_setup_selb_fail;
+ }
+
+ ret = gpio_request(sel_c, "sel_c");
+ if (ret) {
+ pr_warning("Cannot open UI expander pin %d\n", sel_c);
+ goto exp_setup_selc_fail;
+ }
+
+ /* deselect all functionalities */
+ gpio_direction_output(sel_a, 1);
+ gpio_direction_output(sel_b, 1);
+ gpio_direction_output(sel_c, 1);
+
+ ui_card_detected = 1;
+ pr_info("DA850/OMAP-L138 EVM UI card detected\n");
+
+ da850_evm_setup_nor_nand();
+
+ return 0;
+
+exp_setup_selc_fail:
+ gpio_free(sel_b);
+exp_setup_selb_fail:
+ gpio_free(sel_a);
+exp_setup_sela_fail:
+ return ret;
+}
+
+static int da850_evm_ui_expander_teardown(struct i2c_client *client,
+ unsigned gpio, unsigned ngpio, void *c)
+{
+ /* deselect all functionalities */
+ gpio_set_value(gpio + 5, 1);
+ gpio_set_value(gpio + 6, 1);
+ gpio_set_value(gpio + 7, 1);
+
+ gpio_free(gpio + 5);
+ gpio_free(gpio + 6);
+ gpio_free(gpio + 7);
+
+ return 0;
+}
+
+static struct pca953x_platform_data da850_evm_ui_expander_info = {
+ .gpio_base = DAVINCI_N_GPIO,
+ .setup = da850_evm_ui_expander_setup,
+ .teardown = da850_evm_ui_expander_teardown,
+};
+
static struct i2c_board_info __initdata da850_evm_i2c_devices[] = {
{
I2C_BOARD_INFO("tlv320aic3x", 0x18),
- }
+ },
+ {
+ I2C_BOARD_INFO("tca6416", 0x20),
+ .platform_data = &da850_evm_ui_expander_info,
+ },
};
static struct davinci_i2c_platform_data da850_evm_i2c_0_pdata = {
@@ -251,13 +327,6 @@ static void __init da850_evm_init_nor(void)
iounmap(aemif_addr);
}
-#if defined(CONFIG_MTD_PHYSMAP) || \
- defined(CONFIG_MTD_PHYSMAP_MODULE)
-#define HAS_NOR 1
-#else
-#define HAS_NOR 0
-#endif
-
#if defined(CONFIG_MMC_DAVINCI) || \
defined(CONFIG_MMC_DAVINCI_MODULE)
#define HAS_MMC 1
@@ -265,6 +334,28 @@ static void __init da850_evm_init_nor(void)
#define HAS_MMC 0
#endif
+static void da850_evm_setup_nor_nand(void)
+{
+ int ret = 0;
+
+ if (ui_card_detected & !HAS_MMC) {
+ ret = da8xx_pinmux_setup(da850_nand_pins);
+ if (ret)
+ pr_warning("da850_evm_init: nand mux setup failed: "
+ "%d\n", ret);
+
+ ret = da8xx_pinmux_setup(da850_nor_pins);
+ if (ret)
+ pr_warning("da850_evm_init: nor mux setup failed: %d\n",
+ ret);
+
+ da850_evm_init_nor();
+
+ platform_add_devices(da850_evm_devices,
+ ARRAY_SIZE(da850_evm_devices));
+ }
+}
+
static const short da850_evm_lcdc_pins[] = {
DA850_GPIO2_8, DA850_GPIO2_15,
-1
@@ -275,21 +366,6 @@ static __init void da850_evm_init(void)
struct davinci_soc_info *soc_info = &davinci_soc_info;
int ret;
- ret = da8xx_pinmux_setup(da850_nand_pins);
- if (ret)
- pr_warning("da850_evm_init: nand mux setup failed: %d\n",
- ret);
-
- ret = da8xx_pinmux_setup(da850_nor_pins);
- if (ret)
- pr_warning("da850_evm_init: nor mux setup failed: %d\n",
- ret);
-
- da850_evm_init_nor();
-
- platform_add_devices(da850_evm_devices,
- ARRAY_SIZE(da850_evm_devices));
-
ret = da8xx_register_edma();
if (ret)
pr_warning("da850_evm_init: edma registration failed: %d\n",
@@ -325,11 +401,6 @@ static __init void da850_evm_init(void)
ret);
if (HAS_MMC) {
- if (HAS_NOR)
- pr_warning("WARNING: both NOR Flash and MMC/SD are "
- "enabled, but they share AEMIF pins.\n"
- "\tDisable one of them.\n");
-
ret = da8xx_pinmux_setup(da850_mmcsd0_pins);
if (ret)
pr_warning("da850_evm_init: mmcsd0 mux setup failed:"