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tny-a9g20: add mmc spi support 

on the 9g20 low power version we have a mmc spi as microSD

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD 2012-11-13 22:13:18 +01:00 committed by Sascha Hauer
parent ffd78d22c1
commit c9a3e431a6
2 changed files with 39 additions and 7 deletions
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41
arch/arm/boards/tny-a926x/init.c
View File

@ -31,6 +31,7 @@
#include <linux/clk.h>
#include <mach/board.h>
#include <mach/at91sam9_smc.h>
#include <mach/at91sam9_sdramc.h>
#include <mach/sam9_smc.h>
#include <gpio.h>
#include <mach/io.h>
@ -151,12 +152,27 @@ static struct spi_board_info tny_a9g20_spi_devices[] = {
},
};
static struct spi_board_info tny_a9g20_lpw_spi_devices[] = {
{
.name = "spi_mci",
.max_speed_hz = 25 * 1000 * 1000,
.bus_num = 1,
.chip_select = 0,
},
};
static int spi0_standard_cs[] = { AT91_PIN_PC11 };
struct at91_spi_platform_data spi_pdata = {
struct at91_spi_platform_data spi0_pdata = {
.chipselect = spi0_standard_cs,
.num_chipselect = ARRAY_SIZE(spi0_standard_cs),
};
static int spi1_standard_cs[] = { AT91_PIN_PC3 };
struct at91_spi_platform_data spi1_pdata = {
.chipselect = spi1_standard_cs,
.num_chipselect = ARRAY_SIZE(spi1_standard_cs),
};
static void __init ek_add_device_udc(void)
{
if (machine_is_tny_a9260() || machine_is_tny_a9g20())
@ -165,6 +181,22 @@ static void __init ek_add_device_udc(void)
at91_add_device_udc(&ek_udc_data);
}
static void __init ek_add_device_spi(void)
{
if (machine_is_tny_a9263())
return;
if (machine_is_tny_a9g20() && at91_is_low_power_sdram()) {
spi_register_board_info(tny_a9g20_lpw_spi_devices,
ARRAY_SIZE(tny_a9g20_lpw_spi_devices));
at91_add_device_spi(1, &spi1_pdata);
} else {
spi_register_board_info(tny_a9g20_spi_devices,
ARRAY_SIZE(tny_a9g20_spi_devices));
at91_add_device_spi(0, &spi0_pdata);
}
}
static int tny_a9260_mem_init(void)
{
at91_add_device_sdram(0);
@ -178,16 +210,11 @@ static int tny_a9260_devices_init(void)
tny_a9260_add_device_nand();
ek_add_device_macb();
ek_add_device_udc();
ek_add_device_spi();
armlinux_set_bootparams((void *)(AT91_CHIPSELECT_1 + 0x100));
tny_a9260_set_board_type();
if (machine_is_tny_a9260() || machine_is_tny_a9g20()) {
spi_register_board_info(tny_a9g20_spi_devices,
ARRAY_SIZE(tny_a9g20_spi_devices));
at91_add_device_spi(0, &spi_pdata);
}
devfs_add_partition("nand0", 0x00000, SZ_128K, DEVFS_PARTITION_FIXED, "at91bootstrap_raw");
dev_add_bb_dev("at91bootstrap_raw", "at91bootstrap");
devfs_add_partition("nand0", SZ_128K, SZ_256K, DEVFS_PARTITION_FIXED, "self_raw");

5
arch/arm/configs/tny_a9g20_defconfig
View File

@ -51,6 +51,7 @@ CONFIG_CMD_OFTREE=y
CONFIG_CMD_TIMEOUT=y
CONFIG_CMD_PARTITION=y
CONFIG_CMD_GPIO=y
CONFIG_CMD_SPI=y
CONFIG_NET=y
CONFIG_NET_DHCP=y
CONFIG_NET_NFS=y
@ -70,4 +71,8 @@ CONFIG_NAND_ATMEL=y
CONFIG_UBI=y
CONFIG_USB_GADGET=y
CONFIG_USB_GADGET_SERIAL=y
CONFIG_MCI=y
CONFIG_MCI_STARTUP=y
CONFIG_MCI_SPI=y
CONFIG_MMC_SPI_CRC_ON=y
CONFIG_EEPROM_AT25=y