hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

MXC: mach-mx31_3ds: add support for freescale mc13783 power management device. 

Power Gates must to be always enabled.

Signed-off-by: Alberto Panizzo <maramaopercheseimorto@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Alberto Panizzo 2010-03-23 19:51:45 +01:00 committed by Sascha Hauer
parent a1ac442443
commit ae7a3f13ab
1 changed files with 45 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
arch/arm/mach-mx3/mach-mx31_3ds.c
View File

@ -23,6 +23,9 @@
#include <linux/gpio.h>
#include <linux/smsc911x.h>
#include <linux/platform_device.h>
#include <linux/mfd/mc13783.h>
#include <linux/spi/spi.h>
#include <linux/regulator/machine.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
@ -60,6 +63,33 @@ static int mx31_3ds_pins[] = {
MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
MX31_PIN_CSPI2_SS0__SS0,
MX31_PIN_CSPI2_SS2__SS2, /*CS for MC13783 */
/* MC13783 IRQ */
IOMUX_MODE(MX31_PIN_GPIO1_3, IOMUX_CONFIG_GPIO),
};
/* Regulators */
static struct regulator_init_data pwgtx_init = {
.constraints = {
.boot_on = 1,
.always_on = 1,
},
};
static struct mc13783_regulator_init_data mx31_3ds_regulators[] = {
{
.id = MC13783_REGU_PWGT1SPI, /* Power Gate for ARM core. */
.init_data = &pwgtx_init,
}, {
.id = MC13783_REGU_PWGT2SPI, /* Power Gate for L2 Cache. */
.init_data = &pwgtx_init,
},
};
/* MC13783 */
static struct mc13783_platform_data mc13783_pdata __initdata = {
.regulators = mx31_3ds_regulators,
.num_regulators = ARRAY_SIZE(mx31_3ds_regulators),
.flags = MC13783_USE_REGULATOR,
};
/* SPI */
@ -73,6 +103,18 @@ static struct spi_imx_master spi1_pdata = {
.num_chipselect = ARRAY_SIZE(spi1_internal_chipselect),
};
static struct spi_board_info mx31_3ds_spi_devs[] __initdata = {
{
.modalias = "mc13783",
.max_speed_hz = 1000000,
.bus_num = 1,
.chip_select = 1, /* SS2 */
.platform_data = &mc13783_pdata,
.irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
.mode = SPI_CS_HIGH,
},
};
/*
* NAND Flash
*/
@ -268,7 +310,10 @@ static void __init mxc_board_init(void)
mxc_register_device(&mxc_uart_device0, &uart_pdata);
mxc_register_device(&mxc_nand_device, &imx31_3ds_nand_flash_pdata);
mxc_register_device(&mxc_spi_device1, &spi1_pdata);
spi_register_board_info(mx31_3ds_spi_devs,
ARRAY_SIZE(mx31_3ds_spi_devs));
if (!mx31_3ds_init_expio())
platform_device_register(&smsc911x_device);