omap1: Use gen_nand
Ladislav Michl [Sat, 12 Dec 2009 00:16:33 +0000 (16:16 -0800)]
Since omapnand driver never find its way into mainline, switch to gen_nand instead.
Following patch is compile tested only, but it is based on code I wrote for
NetStar board and runtime tested it there.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Cc: Imre Deak <imre.deak@nokia.com>
Cc: Brian Swetland <swetland@google.com>
Cc: Kevin Hilman <kjh@hilman.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap1/board-fsample.c
arch/arm/mach-omap1/board-h2.c
arch/arm/mach-omap1/board-h3.c
arch/arm/mach-omap1/board-perseus2.c

index 91e7b2f..7e70c3c 100644 (file)
@@ -31,7 +31,6 @@
 #include <mach/gpio.h>
 #include <plat/mux.h>
 #include <plat/fpga.h>
-#include <plat/nand.h>
 #include <plat/keypad.h>
 #include <plat/common.h>
 #include <plat/board.h>
@@ -174,8 +173,40 @@ static struct platform_device nor_device = {
        .resource       = &nor_resource,
 };
 
-static struct omap_nand_platform_data nand_data = {
-       .options        = NAND_SAMSUNG_LP_OPTIONS,
+static void nand_cmd_ctl(struct mtd_info *mtd, int cmd,        unsigned int ctrl)
+{
+       struct nand_chip *this = mtd->priv;
+       unsigned long mask;
+
+       if (cmd == NAND_CMD_NONE)
+               return;
+
+       mask = (ctrl & NAND_CLE) ? 0x02 : 0;
+       if (ctrl & NAND_ALE)
+               mask |= 0x04;
+       writeb(cmd, (unsigned long)this->IO_ADDR_W | mask);
+}
+
+#define FSAMPLE_NAND_RB_GPIO_PIN       62
+
+static int nand_dev_ready(struct mtd_info *mtd)
+{
+       return gpio_get_value(FSAMPLE_NAND_RB_GPIO_PIN);
+}
+
+static const char *part_probes[] = { "cmdlinepart", NULL };
+
+static struct platform_nand_data nand_data = {
+       .chip   = {
+               .nr_chips               = 1,
+               .chip_offset            = 0,
+               .options                = NAND_SAMSUNG_LP_OPTIONS,
+               .part_probe_types       = part_probes,
+       },
+       .ctrl   = {
+               .cmd_ctrl       = nand_cmd_ctl,
+               .dev_ready      = nand_dev_ready,
+       },
 };
 
 static struct resource nand_resource = {
@@ -185,7 +216,7 @@ static struct resource nand_resource = {
 };
 
 static struct platform_device nand_device = {
-       .name           = "omapnand",
+       .name           = "gen_nand",
        .id             = 0,
        .dev            = {
                .platform_data  = &nand_data,
@@ -243,13 +274,6 @@ static struct platform_device *devices[] __initdata = {
        &lcd_device,
 };
 
-#define P2_NAND_RB_GPIO_PIN    62
-
-static int nand_dev_ready(struct omap_nand_platform_data *data)
-{
-       return gpio_get_value(P2_NAND_RB_GPIO_PIN);
-}
-
 static struct omap_lcd_config fsample_lcd_config __initdata = {
        .ctrl_name      = "internal",
 };
@@ -260,9 +284,9 @@ static struct omap_board_config_kernel fsample_config[] = {
 
 static void __init omap_fsample_init(void)
 {
-       if (gpio_request(P2_NAND_RB_GPIO_PIN, "NAND ready") < 0)
+       if (gpio_request(FSAMPLE_NAND_RB_GPIO_PIN, "NAND ready") < 0)
                BUG();
-       nand_data.dev_ready = nand_dev_ready;
+       gpio_direction_input(FSAMPLE_NAND_RB_GPIO_PIN);
 
        omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
        omap_cfg_reg(M8_1610_FLASH_CS2B_WE);
index eeafe6e..fa7cece 100644 (file)
@@ -41,7 +41,6 @@
 #include <plat/mux.h>
 #include <plat/dma.h>
 #include <plat/tc.h>
-#include <plat/nand.h>
 #include <plat/irda.h>
 #include <plat/usb.h>
 #include <plat/keypad.h>
@@ -180,11 +179,43 @@ static struct mtd_partition h2_nand_partitions[] = {
        },
 };
 
-/* dip switches control NAND chip access:  8 bit, 16 bit, or neither */
-static struct omap_nand_platform_data h2_nand_data = {
-       .options        = NAND_SAMSUNG_LP_OPTIONS,
-       .parts          = h2_nand_partitions,
-       .nr_parts       = ARRAY_SIZE(h2_nand_partitions),
+static void h2_nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
+{
+       struct nand_chip *this = mtd->priv;
+       unsigned long mask;
+
+       if (cmd == NAND_CMD_NONE)
+               return;
+
+       mask = (ctrl & NAND_CLE) ? 0x02 : 0;
+       if (ctrl & NAND_ALE)
+               mask |= 0x04;
+       writeb(cmd, (unsigned long)this->IO_ADDR_W | mask);
+}
+
+#define H2_NAND_RB_GPIO_PIN    62
+
+static int h2_nand_dev_ready(struct mtd_info *mtd)
+{
+       return gpio_get_value(H2_NAND_RB_GPIO_PIN);
+}
+
+static const char *h2_part_probes[] = { "cmdlinepart", NULL };
+
+struct platform_nand_data h2_nand_platdata = {
+       .chip   = {
+               .nr_chips               = 1,
+               .chip_offset            = 0,
+               .nr_partitions          = ARRAY_SIZE(h2_nand_partitions),
+               .partitions             = h2_nand_partitions,
+               .options                = NAND_SAMSUNG_LP_OPTIONS,
+               .part_probe_types       = h2_part_probes,
+       },
+       .ctrl   = {
+               .cmd_ctrl       = h2_nand_cmd_ctl,
+               .dev_ready      = h2_nand_dev_ready,
+
+       },
 };
 
 static struct resource h2_nand_resource = {
@@ -192,10 +223,10 @@ static struct resource h2_nand_resource = {
 };
 
 static struct platform_device h2_nand_device = {
-       .name           = "omapnand",
+       .name           = "gen_nand",
        .id             = 0,
        .dev            = {
-               .platform_data  = &h2_nand_data,
+               .platform_data  = &h2_nand_platdata,
        },
        .num_resources  = 1,
        .resource       = &h2_nand_resource,
@@ -378,8 +409,6 @@ static struct omap_board_config_kernel h2_config[] __initdata = {
        { OMAP_TAG_LCD,         &h2_lcd_config },
 };
 
-#define H2_NAND_RB_GPIO_PIN    62
-
 static void __init h2_init(void)
 {
        /* Here we assume the NOR boot config:  NOR on CS3 (possibly swapped
index e0aee66..6a7f9c3 100644 (file)
@@ -43,7 +43,6 @@
 #include <mach/irqs.h>
 #include <plat/mux.h>
 #include <plat/tc.h>
-#include <plat/nand.h>
 #include <plat/usb.h>
 #include <plat/keypad.h>
 #include <plat/dma.h>
@@ -182,11 +181,43 @@ static struct mtd_partition nand_partitions[] = {
        },
 };
 
-/* dip switches control NAND chip access:  8 bit, 16 bit, or neither */
-static struct omap_nand_platform_data nand_data = {
-       .options        = NAND_SAMSUNG_LP_OPTIONS,
-       .parts          = nand_partitions,
-       .nr_parts       = ARRAY_SIZE(nand_partitions),
+static void nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
+{
+       struct nand_chip *this = mtd->priv;
+       unsigned long mask;
+
+       if (cmd == NAND_CMD_NONE)
+               return;
+
+       mask = (ctrl & NAND_CLE) ? 0x02 : 0;
+       if (ctrl & NAND_ALE)
+               mask |= 0x04;
+       writeb(cmd, (unsigned long)this->IO_ADDR_W | mask);
+}
+
+#define H3_NAND_RB_GPIO_PIN    10
+
+static int nand_dev_ready(struct mtd_info *mtd)
+{
+       return gpio_get_value(H3_NAND_RB_GPIO_PIN);
+}
+
+static const char *part_probes[] = { "cmdlinepart", NULL };
+
+struct platform_nand_data nand_platdata = {
+       .chip   = {
+               .nr_chips               = 1,
+               .chip_offset            = 0,
+               .nr_partitions          = ARRAY_SIZE(nand_partitions),
+               .partitions             = nand_partitions,
+               .options                = NAND_SAMSUNG_LP_OPTIONS,
+               .part_probe_types       = part_probes,
+       },
+       .ctrl   = {
+               .cmd_ctrl       = nand_cmd_ctl,
+               .dev_ready      = nand_dev_ready,
+
+       },
 };
 
 static struct resource nand_resource = {
@@ -194,10 +225,10 @@ static struct resource nand_resource = {
 };
 
 static struct platform_device nand_device = {
-       .name           = "omapnand",
+       .name           = "gen_nand",
        .id             = 0,
        .dev            = {
-               .platform_data  = &nand_data,
+               .platform_data  = &nand_platdata,
        },
        .num_resources  = 1,
        .resource       = &nand_resource,
@@ -342,13 +373,6 @@ static struct i2c_board_info __initdata h3_i2c_board_info[] = {
        },
 };
 
-#define H3_NAND_RB_GPIO_PIN    10
-
-static int nand_dev_ready(struct omap_nand_platform_data *data)
-{
-       return gpio_get_value(H3_NAND_RB_GPIO_PIN);
-}
-
 static void __init h3_init(void)
 {
        /* Here we assume the NOR boot config:  NOR on CS3 (possibly swapped
@@ -366,7 +390,7 @@ static void __init h3_init(void)
        nand_resource.end += SZ_4K - 1;
        if (gpio_request(H3_NAND_RB_GPIO_PIN, "NAND ready") < 0)
                BUG();
-       nand_data.dev_ready = nand_dev_ready;
+       gpio_direction_input(H3_NAND_RB_GPIO_PIN);
 
        /* GPIO10 Func_MUX_CTRL reg bit 29:27, Configure V2 to mode1 as GPIO */
        /* GPIO10 pullup/down register, Enable pullup on GPIO10 */
index b9ea312..1387a4f 100644 (file)
@@ -31,7 +31,6 @@
 #include <mach/gpio.h>
 #include <plat/mux.h>
 #include <plat/fpga.h>
-#include <plat/nand.h>
 #include <plat/keypad.h>
 #include <plat/common.h>
 #include <plat/board.h>
@@ -141,8 +140,40 @@ static struct platform_device nor_device = {
        .resource       = &nor_resource,
 };
 
-static struct omap_nand_platform_data nand_data = {
-       .options        = NAND_SAMSUNG_LP_OPTIONS,
+static void nand_cmd_ctl(struct mtd_info *mtd, int cmd,        unsigned int ctrl)
+{
+       struct nand_chip *this = mtd->priv;
+       unsigned long mask;
+
+       if (cmd == NAND_CMD_NONE)
+               return;
+
+       mask = (ctrl & NAND_CLE) ? 0x02 : 0;
+       if (ctrl & NAND_ALE)
+               mask |= 0x04;
+       writeb(cmd, (unsigned long)this->IO_ADDR_W | mask);
+}
+
+#define P2_NAND_RB_GPIO_PIN    62
+
+static int nand_dev_ready(struct mtd_info *mtd)
+{
+       return gpio_get_value(P2_NAND_RB_GPIO_PIN);
+}
+
+static const char *part_probes[] = { "cmdlinepart", NULL };
+
+static struct platform_nand_data nand_data = {
+       .chip   = {
+               .nr_chips               = 1,
+               .chip_offset            = 0,
+               .options                = NAND_SAMSUNG_LP_OPTIONS,
+               .part_probe_types       = part_probes,
+       },
+       .ctrl   = {
+               .cmd_ctrl       = nand_cmd_ctl,
+               .dev_ready      = nand_dev_ready,
+       },
 };
 
 static struct resource nand_resource = {
@@ -152,7 +183,7 @@ static struct resource nand_resource = {
 };
 
 static struct platform_device nand_device = {
-       .name           = "omapnand",
+       .name           = "gen_nand",
        .id             = 0,
        .dev            = {
                .platform_data  = &nand_data,
@@ -211,13 +242,6 @@ static struct platform_device *devices[] __initdata = {
        &lcd_device,
 };
 
-#define P2_NAND_RB_GPIO_PIN    62
-
-static int nand_dev_ready(struct omap_nand_platform_data *data)
-{
-       return gpio_get_value(P2_NAND_RB_GPIO_PIN);
-}
-
 static struct omap_lcd_config perseus2_lcd_config __initdata = {
        .ctrl_name      = "internal",
 };
@@ -230,7 +254,7 @@ static void __init omap_perseus2_init(void)
 {
        if (gpio_request(P2_NAND_RB_GPIO_PIN, "NAND ready") < 0)
                BUG();
-       nand_data.dev_ready = nand_dev_ready;
+       gpio_direction_input(P2_NAND_RB_GPIO_PIN);
 
        omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
        omap_cfg_reg(M8_1610_FLASH_CS2B_WE);