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ARM: platform data to use the FSMC NAND with the U300

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Just as it says, if this is merged along with the other patch, the
driver supports the U300 NAND flash interface.

Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Linus Walleij 2010-09-13 00:35:37 +02:00 committed by David Woodhouse
parent 6c009ab89a
commit 93ac5a552c
3 changed files with 45 additions and 10 deletions
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6
arch/arm/mach-u300/clock.c
View File

@ -66,7 +66,7 @@ static DEFINE_SPINLOCK(syscon_resetreg_lock);
* AMBA bus
* |
* +- CPU
* +- NANDIF NAND Flash interface
* +- FSMC NANDIF NAND Flash interface
* +- SEMI Shared Memory interface
* +- ISP Image Signal Processor (U335 only)
* +- CDS (U335 only)
@ -726,7 +726,7 @@ static struct clk cpu_clk = {
};
static struct clk nandif_clk = {
.name = "NANDIF",
.name = "FSMC",
.parent = &amba_clk,
.hw_ctrld = false,
.reset = true,
@ -1259,7 +1259,7 @@ static struct clk_lookup lookups[] = {
/* Connected directly to the AMBA bus */
DEF_LOOKUP("amba", &amba_clk),
DEF_LOOKUP("cpu", &cpu_clk),
DEF_LOOKUP("fsmc", &nandif_clk),
DEF_LOOKUP("fsmc-nand", &nandif_clk),
DEF_LOOKUP("semi", &semi_clk),
#ifdef CONFIG_MACH_U300_BS335
DEF_LOOKUP("isp", &isp_clk),

47
arch/arm/mach-u300/core.c
View File

@ -21,7 +21,8 @@
#include <linux/gpio.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <mach/coh901318.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/fsmc.h>
#include <asm/types.h>
#include <asm/setup.h>
@ -30,6 +31,7 @@
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <mach/coh901318.h>
#include <mach/hardware.h>
#include <mach/syscon.h>
#include <mach/dma_channels.h>
@ -285,6 +287,13 @@ static struct resource rtc_resources[] = {
*/
static struct resource fsmc_resources[] = {
{
.name = "nand_data",
.start = U300_NAND_CS0_PHYS_BASE,
.end = U300_NAND_CS0_PHYS_BASE + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
{
.name = "fsmc_regs",
.start = U300_NAND_IF_PHYS_BASE,
.end = U300_NAND_IF_PHYS_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
@ -1429,11 +1438,39 @@ static struct platform_device rtc_device = {
.resource = rtc_resources,
};
static struct platform_device fsmc_device = {
.name = "nandif",
static struct mtd_partition u300_partitions[] = {
{
.name = "bootrecords",
.offset = 0,
.size = SZ_128K,
},
{
.name = "free",
.offset = SZ_128K,
.size = 8064 * SZ_1K,
},
{
.name = "platform",
.offset = 8192 * SZ_1K,
.size = 253952 * SZ_1K,
},
};
static struct fsmc_nand_platform_data nand_platform_data = {
.partitions = u300_partitions,
.nr_partitions = ARRAY_SIZE(u300_partitions),
.options = NAND_SKIP_BBTSCAN,
.width = FSMC_NAND_BW8,
};
static struct platform_device nand_device = {
.name = "fsmc-nand",
.id = -1,
.num_resources = ARRAY_SIZE(fsmc_resources),
.resource = fsmc_resources,
.num_resources = ARRAY_SIZE(fsmc_resources),
.dev = {
.platform_data = &nand_platform_data,
},
};
static struct platform_device ave_device = {
@ -1465,7 +1502,7 @@ static struct platform_device *platform_devs[] __initdata = {
&keypad_device,
&rtc_device,
&gpio_device,
&fsmc_device,
&nand_device,
&wdog_device,
&ave_device
};

2
arch/arm/mach-u300/include/mach/u300-regs.h
View File

@ -20,11 +20,9 @@
/* NAND Flash CS0 */
#define U300_NAND_CS0_PHYS_BASE 0x80000000
#define U300_NAND_CS0_VIRT_BASE 0xff040000
/* NFIF */
#define U300_NAND_IF_PHYS_BASE 0x9f800000
#define U300_NAND_IF_VIRT_BASE 0xff030000
/* AHB Peripherals */
#define U300_AHB_PER_PHYS_BASE 0xa0000000