diff options
author | Tony Lindgren <tony@atomide.com> | 2014-11-20 12:11:25 -0800 |
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committer | Tony Lindgren <tony@atomide.com> | 2014-11-20 12:11:25 -0800 |
commit | e639cd5bfc03de7ba642d7e8570b9e533f10e54b (patch) | |
tree | 03fae68d9d60c56485d6b76e6388670b2ef7e469 /arch/arm/mach-omap2/gpmc.c | |
parent | 6f8782a7a1c826e1c013d6b7d5504af6bcc079e6 (diff) |
ARM: OMAP2+: Prepare to move GPMC to drivers by platform data header
We still need to support platform data for omap3 until it's booting
in device tree only mode. So let's add platform_data/omap-gpmc.h for
that, and a minimal linux/omap-gpmc.h for the save and restore used
by the PM code.
Let's also keep a minimal mach-omap2/gpmc.h still around to avoid
churn on the board-*.c files. Once omap3 boots in device tree only
mode, we can drop mach-omap2/gpmc.h and we can make the data
structures in platform_data/omap-gpmc.h private to the GPMC driver.
Note that we can now also remove gpmc-nand.h and gpmc-onenand.h.
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/gpmc.c')
-rw-r--r-- | arch/arm/mach-omap2/gpmc.c | 63 |
1 files changed, 58 insertions, 5 deletions
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index 9ea92b6f180d..0753a046fed2 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -29,18 +29,17 @@ #include <linux/of_address.h> #include <linux/of_mtd.h> #include <linux/of_device.h> +#include <linux/omap-gpmc.h> #include <linux/mtd/nand.h> #include <linux/pm_runtime.h> #include <linux/platform_data/mtd-nand-omap2.h> - -#include <asm/mach-types.h> +#include <linux/platform_data/mtd-onenand-omap2.h> #include "soc.h" #include "omap_device.h" -#include "gpmc.h" -#include "gpmc-nand.h" -#include "gpmc-onenand.h" + +#include <asm/mach-types.h> #define DEVICE_NAME "omap-gpmc" @@ -115,6 +114,60 @@ #define GPMC_NR_WAITPINS 4 +#define GPMC_CS_CONFIG1 0x00 +#define GPMC_CS_CONFIG2 0x04 +#define GPMC_CS_CONFIG3 0x08 +#define GPMC_CS_CONFIG4 0x0c +#define GPMC_CS_CONFIG5 0x10 +#define GPMC_CS_CONFIG6 0x14 +#define GPMC_CS_CONFIG7 0x18 +#define GPMC_CS_NAND_COMMAND 0x1c +#define GPMC_CS_NAND_ADDRESS 0x20 +#define GPMC_CS_NAND_DATA 0x24 + +/* Control Commands */ +#define GPMC_CONFIG_RDY_BSY 0x00000001 +#define GPMC_CONFIG_DEV_SIZE 0x00000002 +#define GPMC_CONFIG_DEV_TYPE 0x00000003 +#define GPMC_SET_IRQ_STATUS 0x00000004 + +#define GPMC_CONFIG1_WRAPBURST_SUPP (1 << 31) +#define GPMC_CONFIG1_READMULTIPLE_SUPP (1 << 30) +#define GPMC_CONFIG1_READTYPE_ASYNC (0 << 29) +#define GPMC_CONFIG1_READTYPE_SYNC (1 << 29) +#define GPMC_CONFIG1_WRITEMULTIPLE_SUPP (1 << 28) +#define GPMC_CONFIG1_WRITETYPE_ASYNC (0 << 27) +#define GPMC_CONFIG1_WRITETYPE_SYNC (1 << 27) +#define GPMC_CONFIG1_CLKACTIVATIONTIME(val) ((val & 3) << 25) +#define GPMC_CONFIG1_PAGE_LEN(val) ((val & 3) << 23) +#define GPMC_CONFIG1_WAIT_READ_MON (1 << 22) +#define GPMC_CONFIG1_WAIT_WRITE_MON (1 << 21) +#define GPMC_CONFIG1_WAIT_MON_IIME(val) ((val & 3) << 18) +#define GPMC_CONFIG1_WAIT_PIN_SEL(val) ((val & 3) << 16) +#define GPMC_CONFIG1_DEVICESIZE(val) ((val & 3) << 12) +#define GPMC_CONFIG1_DEVICESIZE_16 GPMC_CONFIG1_DEVICESIZE(1) +#define GPMC_CONFIG1_DEVICETYPE(val) ((val & 3) << 10) +#define GPMC_CONFIG1_DEVICETYPE_NOR GPMC_CONFIG1_DEVICETYPE(0) +#define GPMC_CONFIG1_MUXTYPE(val) ((val & 3) << 8) +#define GPMC_CONFIG1_TIME_PARA_GRAN (1 << 4) +#define GPMC_CONFIG1_FCLK_DIV(val) (val & 3) +#define GPMC_CONFIG1_FCLK_DIV2 (GPMC_CONFIG1_FCLK_DIV(1)) +#define GPMC_CONFIG1_FCLK_DIV3 (GPMC_CONFIG1_FCLK_DIV(2)) +#define GPMC_CONFIG1_FCLK_DIV4 (GPMC_CONFIG1_FCLK_DIV(3)) +#define GPMC_CONFIG7_CSVALID (1 << 6) + +#define GPMC_DEVICETYPE_NOR 0 +#define GPMC_DEVICETYPE_NAND 2 +#define GPMC_CONFIG_WRITEPROTECT 0x00000010 +#define WR_RD_PIN_MONITORING 0x00600000 + +#define GPMC_ENABLE_IRQ 0x0000000d + +/* ECC commands */ +#define GPMC_ECC_READ 0 /* Reset Hardware ECC for read */ +#define GPMC_ECC_WRITE 1 /* Reset Hardware ECC for write */ +#define GPMC_ECC_READSYN 2 /* Reset before syndrom is read back */ + /* XXX: Only NAND irq has been considered,currently these are the only ones used */ #define GPMC_NR_IRQ 2 |