* Ladislav Michl <ladislav.mi...@seznam.cz> [091123 03:45]:
> 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.
Nice patch, and totally the way to go!
Regards,
Tony
> Signed-off-by: Ladislav Michl <la...@linux-mips.org>
> Cc: Imre Deak <imre.d...@nokia.com>
> Cc: Brian Swetland <swetl...@google.com>
> Cc: Kevin Hilman <k...@hilman.org>
>
> diff --git a/arch/arm/mach-omap1/board-fsample.c
> b/arch/arm/mach-omap1/board-fsample.c
> index f4b72c1..8da8c64 100644
> --- a/arch/arm/mach-omap1/board-fsample.c
> +++ b/arch/arm/mach-omap1/board-fsample.c
> @@ -30,7 +30,6 @@
> #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>
> @@ -167,8 +166,40 @@ 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 = {
> @@ -178,7 +209,7 @@ static struct resource nand_resource = {
> };
>
> static struct platform_device nand_device = {
> - .name = "omapnand",
> + .name = "gen_nand",
> .id = 0,
> .dev = {
> .platform_data = &nand_data,
> @@ -233,13 +264,6 @@ 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",
> };
> @@ -250,9 +274,9 @@ 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);
> diff --git a/arch/arm/mach-omap1/board-h2.c b/arch/arm/mach-omap1/board-h2.c
> index 89ba8ec..283a6f2 100644
> --- a/arch/arm/mach-omap1/board-h2.c
> +++ b/arch/arm/mach-omap1/board-h2.c
> @@ -40,7 +40,6 @@
> #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>
> @@ -179,11 +178,43 @@ 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 = {
> @@ -191,10 +222,10 @@ 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,
> @@ -368,8 +399,6 @@ 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
> diff --git a/arch/arm/mach-omap1/board-h3.c b/arch/arm/mach-omap1/board-h3.c
> index f5cc0a7..f96cd1e 100644
> --- a/arch/arm/mach-omap1/board-h3.c
> +++ b/arch/arm/mach-omap1/board-h3.c
> @@ -42,7 +42,6 @@
> #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>
> @@ -181,11 +180,43 @@ 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 = {
> @@ -193,10 +224,10 @@ 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,
> @@ -332,13 +363,6 @@ 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
> @@ -356,7 +380,7 @@ 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 */
> diff --git a/arch/arm/mach-omap1/board-perseus2.c
> b/arch/arm/mach-omap1/board-perseus2.c
> index ca7df1e..dba0f7b 100644
> --- a/arch/arm/mach-omap1/board-perseus2.c
> +++ b/arch/arm/mach-omap1/board-perseus2.c
> @@ -30,7 +30,6 @@
> #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>
> @@ -134,8 +133,40 @@ 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 = {
> @@ -145,7 +176,7 @@ static struct resource nand_resource = {
> };
>
> static struct platform_device nand_device = {
> - .name = "omapnand",
> + .name = "gen_nand",
> .id = 0,
> .dev = {
> .platform_data = &nand_data,
> @@ -201,13 +232,6 @@ 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",
> };
> @@ -220,7 +244,7 @@ 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);
> --
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