aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-at91/board-cap9adk.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-at91/board-cap9adk.c')
-rw-r--r--arch/arm/mach-at91/board-cap9adk.c72
1 files changed, 59 insertions, 13 deletions
diff --git a/arch/arm/mach-at91/board-cap9adk.c b/arch/arm/mach-at91/board-cap9adk.c
index 201b89392dc..43b37bc91e5 100644
--- a/arch/arm/mach-at91/board-cap9adk.c
+++ b/arch/arm/mach-at91/board-cap9adk.c
@@ -47,6 +47,7 @@
#include <mach/at91cap9_matrix.h>
#include <mach/at91sam9_smc.h>
+#include "sam9_smc.h"
#include "generic.h"
@@ -195,6 +196,43 @@ static struct atmel_nand_data __initdata cap9adk_nand_data = {
#endif
};
+static struct sam9_smc_config __initdata cap9adk_nand_smc_config = {
+ .ncs_read_setup = 1,
+ .nrd_setup = 2,
+ .ncs_write_setup = 1,
+ .nwe_setup = 2,
+
+ .ncs_read_pulse = 6,
+ .nrd_pulse = 4,
+ .ncs_write_pulse = 6,
+ .nwe_pulse = 4,
+
+ .read_cycle = 8,
+ .write_cycle = 8,
+
+ .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
+ .tdf_cycles = 1,
+};
+
+static void __init cap9adk_add_device_nand(void)
+{
+ unsigned long csa;
+
+ csa = at91_sys_read(AT91_MATRIX_EBICSA);
+ at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
+
+ /* setup bus-width (8 or 16) */
+ if (cap9adk_nand_data.bus_width_16)
+ cap9adk_nand_smc_config.mode |= AT91_SMC_DBW_16;
+ else
+ cap9adk_nand_smc_config.mode |= AT91_SMC_DBW_8;
+
+ /* configure chip-select 3 (NAND) */
+ sam9_smc_configure(3, &cap9adk_nand_smc_config);
+
+ at91_add_device_nand(&cap9adk_nand_data);
+}
+
/*
* NOR flash
@@ -234,6 +272,24 @@ static struct platform_device cap9adk_nor_flash = {
.num_resources = ARRAY_SIZE(nor_flash_resources),
};
+static struct sam9_smc_config __initdata cap9adk_nor_smc_config = {
+ .ncs_read_setup = 2,
+ .nrd_setup = 4,
+ .ncs_write_setup = 2,
+ .nwe_setup = 4,
+
+ .ncs_read_pulse = 10,
+ .nrd_pulse = 8,
+ .ncs_write_pulse = 10,
+ .nwe_pulse = 8,
+
+ .read_cycle = 16,
+ .write_cycle = 16,
+
+ .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16,
+ .tdf_cycles = 1,
+};
+
static __init void cap9adk_add_device_nor(void)
{
unsigned long csa;
@@ -241,18 +297,8 @@ static __init void cap9adk_add_device_nor(void)
csa = at91_sys_read(AT91_MATRIX_EBICSA);
at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
- /* set the bus interface characteristics */
- at91_sys_write(AT91_SMC_SETUP(0), AT91_SMC_NWESETUP_(4) | AT91_SMC_NCS_WRSETUP_(2)
- | AT91_SMC_NRDSETUP_(4) | AT91_SMC_NCS_RDSETUP_(2));
-
- at91_sys_write(AT91_SMC_PULSE(0), AT91_SMC_NWEPULSE_(8) | AT91_SMC_NCS_WRPULSE_(10)
- | AT91_SMC_NRDPULSE_(8) | AT91_SMC_NCS_RDPULSE_(10));
-
- at91_sys_write(AT91_SMC_CYCLE(0), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
-
- at91_sys_write(AT91_SMC_MODE(0), AT91_SMC_READMODE | AT91_SMC_WRITEMODE
- | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
- | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));
+ /* configure chip-select 0 (NOR) */
+ sam9_smc_configure(0, &cap9adk_nor_smc_config);
platform_device_register(&cap9adk_nor_flash);
}
@@ -344,7 +390,7 @@ static void __init cap9adk_board_init(void)
/* Ethernet */
at91_add_device_eth(&cap9adk_macb_data);
/* NAND */
- at91_add_device_nand(&cap9adk_nand_data);
+ cap9adk_add_device_nand();
/* NOR Flash */
cap9adk_add_device_nor();
/* I2C */