satip-axe/kernel/drivers/stm/stx7105_comms.c
2015-03-26 17:24:57 +01:00

885 lines
24 KiB
C

/*
* (c) 2010 STMicroelectronics Limited
*
* Author: Pawel Moll <pawel.moll@st.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/stm/pad.h>
#include <linux/stm/emi.h>
#include <linux/stm/stx7105.h>
#include <asm/irq-ilc.h>
/* ASC resources ---------------------------------------------------------- */
static struct stm_pad_config stx7105_asc0_pio0_pad_config = {
.gpios_num = 4,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_OUT(0, 0, 4), /* TX */
STM_PAD_PIO_IN(0, 1, -1), /* RX */
STM_PAD_PIO_IN_NAMED(0, 4, -1, "CTS"),
STM_PAD_PIO_OUT_NAMED(0, 3, 4, "RTS"),
},
};
static struct stm_pad_config stx7105_asc1_pio1_pad_config = {
.gpios_num = 4,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_OUT(1, 0, 4), /* TX */
STM_PAD_PIO_IN(1, 1, -1), /* RX */
STM_PAD_PIO_IN_NAMED(1, 4, -1, "CTS"),
STM_PAD_PIO_OUT_NAMED(1, 3, 4, "RTS"),
},
};
static struct stm_pad_config stx7105_asc2_pio4_pad_config = {
.gpios_num = 4,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_OUT(4, 0, 3), /* TX */
STM_PAD_PIO_IN(4, 1, -1), /* RX */
STM_PAD_PIO_IN_NAMED(4, 2, -1, "CTS"),
STM_PAD_PIO_OUT_NAMED(4, 3, 3, "RTS"),
},
.sysconfs_num = 2,
.sysconfs = (struct stm_pad_sysconf []) {
/* uart2_rxd_src_select: 0 = PIO4.1, 1 = PIO12.1 */
STM_PAD_SYS_CFG(7, 1, 1, 0),
/* uart2_cts_src_select: 0 = PIO4.2, 1 = PIO12.2 */
STM_PAD_SYS_CFG(7, 2, 2, 0),
},
};
static struct stm_pad_config stx7106_asc2_pio12_pad_config = {
.gpios_num = 4,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_OUT(12, 0, 5), /* TX */
STM_PAD_PIO_IN(12, 1, -1), /* RX */
STM_PAD_PIO_IN_NAMED(12, 2, -1, "CTS"),
STM_PAD_PIO_OUT_NAMED(12, 3, 5, "RTS"),
},
.sysconfs_num = 2,
.sysconfs = (struct stm_pad_sysconf []) {
/* uart2_rxd_src_select:
* 0 = PIO4.1, 1 = PIO12.1, 2 = PIO14.1 */
STM_PAD_SYS_CFG(7, 1, 2, 1),
/* uart2_cts_src_select:
* 0 = PIO4.2, 1 = PIO12.2, 2 = PIO14.2 */
STM_PAD_SYS_CFG(16, 1, 2, 1),
},
};
static struct stm_pad_config stx7105_asc2_pio12_pad_config = {
.gpios_num = 4,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_OUT(12, 0, 5), /* TX */
STM_PAD_PIO_IN(12, 1, -1), /* RX */
STM_PAD_PIO_IN_NAMED(12, 2, -1, "CTS"),
STM_PAD_PIO_OUT_NAMED(12, 3, 5, "RTS"),
},
.sysconfs_num = 2,
.sysconfs = (struct stm_pad_sysconf []) {
/* uart2_rxd_src_select: 0 = PIO4.1, 1 = PIO12.1 */
STM_PAD_SYS_CFG(7, 1, 1, 1),
/* uart2_cts_src_select: 0 = PIO4.2, 1 = PIO12.2 */
STM_PAD_SYS_CFG(7, 2, 2, 1),
},
};
static struct stm_pad_config stx7105_asc3_pio5_pad_config = {
.gpios_num = 4,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_OUT(5, 0, 3), /* TX */
STM_PAD_PIO_IN(5, 1, -1), /* RX */
STM_PAD_PIO_IN_NAMED(5, 3, -1, "CTS"),
STM_PAD_PIO_OUT_NAMED(5, 2, 3, "RTS"),
},
};
static struct platform_device stx7105_asc_devices[] = {
[0] = {
.name = "stm-asc",
/* .id set in stx7105_configure_asc() */
.num_resources = 4,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfd030000, 0x2c),
STM_PLAT_RESOURCE_IRQ(evt2irq(0x1160), -1),
STM_PLAT_RESOURCE_DMA_NAMED("rx_half_full", 11),
STM_PLAT_RESOURCE_DMA_NAMED("tx_half_empty", 15),
},
.dev.platform_data = &(struct stm_plat_asc_data) {
.pad_config = &stx7105_asc0_pio0_pad_config,
},
},
[1] = {
.name = "stm-asc",
/* .id set in stx7105_configure_asc() */
.num_resources = 4,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfd031000, 0x2c),
STM_PLAT_RESOURCE_IRQ(evt2irq(0x1140), -1),
STM_PLAT_RESOURCE_DMA_NAMED("rx_half_full", 12),
STM_PLAT_RESOURCE_DMA_NAMED("tx_half_empty", 16),
},
.dev.platform_data = &(struct stm_plat_asc_data) {
.pad_config = &stx7105_asc1_pio1_pad_config
},
},
[2] = {
.name = "stm-asc",
/* .id set in stx7105_configure_asc() */
.num_resources = 4,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfd032000, 0x2c),
STM_PLAT_RESOURCE_IRQ(evt2irq(0x1120), -1),
STM_PLAT_RESOURCE_DMA_NAMED("rx_half_full", 13),
STM_PLAT_RESOURCE_DMA_NAMED("tx_half_empty", 17),
},
.dev.platform_data = &(struct stm_plat_asc_data) {
/* .pad_config set in stx7105_configure_asc() */
},
},
[3] = {
.name = "stm-asc",
/* .id set in stx7105_configure_asc() */
.num_resources = 4,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfd033000, 0x2c),
STM_PLAT_RESOURCE_IRQ(evt2irq(0x1100), -1),
STM_PLAT_RESOURCE_DMA_NAMED("rx_half_full", 14),
STM_PLAT_RESOURCE_DMA_NAMED("tx_half_empty", 18),
},
.dev.platform_data = &(struct stm_plat_asc_data) {
.pad_config = &stx7105_asc3_pio5_pad_config,
},
},
};
/* Note these three variables are global, and shared with the stasc driver
* for console bring up prior to platform initialisation. */
/* the serial console device */
int __initdata stm_asc_console_device;
/* Platform devices to register */
unsigned int __initdata stm_asc_configured_devices_num = 0;
struct platform_device __initdata
*stm_asc_configured_devices[ARRAY_SIZE(stx7105_asc_devices)];
void __init stx7105_configure_asc(int asc, struct stx7105_asc_config *config)
{
static int configured[ARRAY_SIZE(stx7105_asc_devices)];
static int tty_id;
struct stx7105_asc_config default_config = {};
struct platform_device *pdev;
struct stm_plat_asc_data *plat_data;
BUG_ON(asc < 0 || asc >= ARRAY_SIZE(stx7105_asc_devices));
BUG_ON(configured[asc]);
configured[asc] = 1;
if (!config)
config = &default_config;
pdev = &stx7105_asc_devices[asc];
plat_data = pdev->dev.platform_data;
pdev->id = tty_id++;
plat_data->hw_flow_control = config->hw_flow_control;
if (cpu_data->type == CPU_STX7106)
plat_data->txfifo_bug = 1;
if (asc == 2) {
switch (config->routing.asc2) {
case stx7105_asc2_pio4:
plat_data->pad_config = &stx7105_asc2_pio4_pad_config;
break;
case stx7105_asc2_pio12:
if (cpu_data->type == CPU_STX7106)
plat_data->pad_config =
&stx7106_asc2_pio12_pad_config;
else
plat_data->pad_config =
&stx7105_asc2_pio12_pad_config;
break;
default:
BUG();
break;
}
}
if (!config->hw_flow_control) {
struct stm_pad_config *pad_config = plat_data->pad_config;
stm_pad_set_pio_ignored(pad_config, "RTS");
stm_pad_set_pio_ignored(pad_config, "CTS");
if (asc == 2)
pad_config->sysconfs_num--;
}
if (config->is_console)
stm_asc_console_device = pdev->id;
stm_asc_configured_devices[stm_asc_configured_devices_num++] = pdev;
}
/* Add platform device as configured by board specific code */
static int __init stx7105_add_asc(void)
{
return platform_add_devices(stm_asc_configured_devices,
stm_asc_configured_devices_num);
}
arch_initcall(stx7105_add_asc);
/* SSC resources ---------------------------------------------------------- */
/* Pad configuration for I2C mode */
static struct stm_pad_config stx7105_ssc_i2c_pad_configs[] = {
[0] = {
.gpios_num = 2,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_BIDIR_NAMED(2, 2, 3, "SCL"),
STM_PAD_PIO_BIDIR_NAMED(2, 3, 3, "SDA"),
},
},
[1] = {
.gpios_num = 2,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_BIDIR_NAMED(2, 5, 3, "SCL"),
STM_PAD_PIO_BIDIR_NAMED(2, 6, 3, "SDA"),
},
},
/* Configurations for SSC2 & SSC3 are created in
* stx7105_configure_ssc_*(), according to passed routing
* information */
};
/* Pad configuration for SPI mode */
static struct stm_pad_config stx7105_ssc_spi_pad_configs[] = {
[0] = {
.gpios_num = 3,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_OUT(2, 2, 3), /* SCK */
STM_PAD_PIO_OUT(2, 3, 3), /* MOSI */
STM_PAD_PIO_IN(2, 4, -1), /* MISO */
},
.sysconfs_num = 1,
.sysconfs = (struct stm_pad_sysconf []) {
/* ssc0_mrst_in_sel: 0 = PIO2.3, 1 = PIO2.4 */
STM_PAD_SYS_CFG(16, 0, 0, 1),
},
},
[1] = {
.gpios_num = 3,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_OUT(2, 5, 3), /* SCK */
STM_PAD_PIO_OUT(2, 6, 3), /* MOSI */
STM_PAD_PIO_IN(2, 7, -1), /* MISO */
},
.sysconfs_num = 1,
.sysconfs = (struct stm_pad_sysconf []) {
/* ssc1_mrst_in_sel: 0 = PIO2.6, 1 = PIO2.7 */
STM_PAD_SYS_CFG(16, 3, 3, 1),
},
},
/* Configurations for SSC2 & SSC3 are created in
* stx7105_configure_ssc_*(), according to passed routing
* information */
};
static struct platform_device stx7105_ssc_devices[] = {
[0] = {
/* .name & .id set in stx7105_configure_ssc_*() */
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfd040000, 0x110),
STM_PLAT_RESOURCE_IRQ(evt2irq(0x10e0), -1),
},
.dev.platform_data = &(struct stm_plat_ssc_data) {
/* .pad_config_* set in stx7105_configure_ssc_*() */
},
},
[1] = {
/* .name & .id set in stx7105_configure_ssc_*() */
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfd041000, 0x110),
STM_PLAT_RESOURCE_IRQ(evt2irq(0x10c0), -1),
},
.dev.platform_data = &(struct stm_plat_ssc_data) {
/* .pad_config_* set in stx7105_configure_ssc_*() */
},
},
[2] = {
/* .name & .id set in stx7105_configure_ssc_*() */
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfd042000, 0x110),
STM_PLAT_RESOURCE_IRQ(evt2irq(0x10a0), -1),
},
.dev.platform_data = &(struct stm_plat_ssc_data) {
/* .pad_config_* set in stx7105_configure_ssc_*() */
},
},
[3] = {
/* .name & .id set in stx7105_configure_ssc_*() */
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfd043000, 0x110),
STM_PLAT_RESOURCE_IRQ(evt2irq(0x1080), -1),
},
.dev.platform_data = &(struct stm_plat_ssc_data) {
/* .pad_config_* set in stx7105_configure_ssc_*() */
},
},
};
static int __initdata stx7105_ssc_configured[ARRAY_SIZE(stx7105_ssc_devices)];
int __init stx7105_configure_ssc_i2c(int ssc, struct stx7105_ssc_config *config)
{
static int i2c_busnum;
struct stx7105_ssc_config default_config = {};
struct stm_plat_ssc_data *plat_data;
struct stm_pad_config *pad_config;
BUG_ON(ssc < 0 || ssc >= ARRAY_SIZE(stx7105_ssc_devices));
BUG_ON(stx7105_ssc_configured[ssc]);
stx7105_ssc_configured[ssc] = 1;
if (!config)
config = &default_config;
stx7105_ssc_devices[ssc].name = "i2c-stm";
stx7105_ssc_devices[ssc].id = i2c_busnum;
plat_data = stx7105_ssc_devices[ssc].dev.platform_data;
switch (ssc) {
case 0:
case 1:
pad_config = &stx7105_ssc_i2c_pad_configs[ssc];
break;
case 2:
pad_config = stm_pad_config_alloc(2, 2);
/* SCL */
switch (config->routing.ssc2.sclk) {
case stx7105_ssc2_sclk_pio2_4: /* 7106 only! */
BUG_ON(cpu_data->type != CPU_STX7106);
stm_pad_config_add_pio_bidir_named(pad_config,
2, 4, 2, "SCL");
/* ssc2_sclk_in: 00 = PIO2.4 */
stm_pad_config_add_sys_cfg(pad_config, 16, 11, 12, 0);
break;
case stx7105_ssc2_sclk_pio3_4:
stm_pad_config_add_pio_bidir_named(pad_config,
3, 4, 2, "SCL");
/* ssc2_sclk_in: 01 = PIO3.4 */
stm_pad_config_add_sys_cfg(pad_config, 16, 11, 12, 1);
break;
case stx7105_ssc2_sclk_pio12_0:
stm_pad_config_add_pio_bidir_named(pad_config,
12, 0, 3, "SCL");
/* ssc2_sclk_in: 10 = PIO12.0 */
stm_pad_config_add_sys_cfg(pad_config, 16, 11, 12, 2);
break;
case stx7105_ssc2_sclk_pio13_4:
stm_pad_config_add_pio_bidir_named(pad_config,
13, 4, 2, "SCL");
/* ssc2_sclk_in: 11 = PIO13.4 */
stm_pad_config_add_sys_cfg(pad_config, 16, 11, 12, 3);
break;
}
/* SDA */
switch (config->routing.ssc2.mtsr) {
case stx7105_ssc2_mtsr_pio2_0:
stm_pad_config_add_pio_bidir_named(pad_config,
2, 0, 3, "SDA");
/* ssc2_mtsr_in: 00 = PIO2.0 */
stm_pad_config_add_sys_cfg(pad_config, 16, 9, 10, 0);
break;
case stx7105_ssc2_mtsr_pio3_5:
stm_pad_config_add_pio_bidir_named(pad_config,
3, 5, 2, "SDA");
/* ssc2_mtsr_in: 01 = PIO3.5 */
stm_pad_config_add_sys_cfg(pad_config, 16, 9, 10, 1);
break;
case stx7105_ssc2_mtsr_pio12_1:
stm_pad_config_add_pio_bidir_named(pad_config,
12, 1, 3, "SDA");
/* ssc2_mtsr_in: 10 = PIO12.1 */
stm_pad_config_add_sys_cfg(pad_config, 16, 9, 10, 2);
break;
case stx7105_ssc2_mtsr_pio13_5:
stm_pad_config_add_pio_bidir_named(pad_config,
13, 5, 2, "SDA");
/* ssc2_mtsr_in: 11 = PIO13.5 */
stm_pad_config_add_sys_cfg(pad_config, 16, 9, 10, 3);
break;
}
break;
case 3:
pad_config = stm_pad_config_alloc(2, 2);
/* SCL */
switch (config->routing.ssc3.sclk) {
case stx7105_ssc3_sclk_pio2_7: /* 7106 only! */
BUG_ON(cpu_data->type != CPU_STX7106);
stm_pad_config_add_pio_bidir_named(pad_config,
2, 7, 2, "SCL");
/* ssc3_sclk_in: 00 = PIO2.7 */
stm_pad_config_add_sys_cfg(pad_config, 16, 18, 19, 0);
break;
case stx7105_ssc3_sclk_pio3_6:
stm_pad_config_add_pio_bidir_named(pad_config,
3, 6, 2, "SCL");
/* ssc3_sclk_in: 01 = PIO3.6 */
stm_pad_config_add_sys_cfg(pad_config, 16, 18, 19, 1);
break;
case stx7105_ssc3_sclk_pio13_2:
stm_pad_config_add_pio_bidir_named(pad_config,
13, 2, 4, "SCL");
/* ssc3_sclk_in: 10 = PIO13.2 */
stm_pad_config_add_sys_cfg(pad_config, 16, 18, 19, 2);
break;
case stx7105_ssc3_sclk_pio13_6:
stm_pad_config_add_pio_bidir_named(pad_config,
13, 6, 2, "SCL");
/* ssc3_sclk_in: 11 = PIO13.6 */
stm_pad_config_add_sys_cfg(pad_config, 16, 18, 19, 3);
break;
}
/* SDA */
switch (config->routing.ssc3.mtsr) {
case stx7105_ssc3_mtsr_pio2_1:
stm_pad_config_add_pio_bidir_named(pad_config,
2, 1, 3, "SDA");
/* ssc3_mtsr_in: 00 = PIO2.1 */
stm_pad_config_add_sys_cfg(pad_config, 16, 16, 17, 0);
break;
case stx7105_ssc3_mtsr_pio3_7:
stm_pad_config_add_pio_bidir_named(pad_config,
3, 7, 2, "SDA");
/* ssc3_mtsr_in: 01 = PIO3.7 */
stm_pad_config_add_sys_cfg(pad_config, 16, 16, 17, 1);
break;
case stx7105_ssc3_mtsr_pio13_3:
stm_pad_config_add_pio_bidir_named(pad_config,
13, 3, 4, "SDA");
/* ssc3_mtsr_in: 10 = PIO13.3 */
stm_pad_config_add_sys_cfg(pad_config, 16, 16, 17, 2);
break;
case stx7105_ssc3_mtsr_pio13_7:
stm_pad_config_add_pio_bidir_named(pad_config,
13, 7, 2, "SDA");
/* ssc3_mtsr_in: 11 = PIO13.7 */
stm_pad_config_add_sys_cfg(pad_config, 16, 16, 17, 3);
break;
}
break;
default:
BUG();
pad_config = NULL; /* Keep the compiler happy ;-) */
break;
}
plat_data->pad_config = pad_config;
/* I2C bus number reservation (to prevent any hot-plug device
* from using it) */
i2c_register_board_info(i2c_busnum, NULL, 0);
platform_device_register(&stx7105_ssc_devices[ssc]);
return i2c_busnum++;
}
int __init stx7105_configure_ssc_spi(int ssc, struct stx7105_ssc_config *config)
{
static int spi_busnum;
struct stx7105_ssc_config default_config = {};
struct stm_plat_ssc_data *plat_data;
struct stm_pad_config *pad_config;
BUG_ON(ssc < 0 || ssc >= ARRAY_SIZE(stx7105_ssc_devices));
BUG_ON(stx7105_ssc_configured[ssc]);
stx7105_ssc_configured[ssc] = 1;
if (!config)
config = &default_config;
stx7105_ssc_devices[ssc].name = "spi-stm";
stx7105_ssc_devices[ssc].id = spi_busnum;
plat_data = stx7105_ssc_devices[ssc].dev.platform_data;
switch (ssc) {
case 0:
case 1:
pad_config = &stx7105_ssc_spi_pad_configs[ssc];
break;
case 2:
pad_config = stm_pad_config_alloc(3, 2);
/* SCK */
switch (config->routing.ssc2.sclk) {
case stx7105_ssc2_sclk_pio2_4: /* 7106 only! */
BUG_ON(cpu_data->type != CPU_STX7106);
stm_pad_config_add_pio_out(pad_config, 2, 4, 2);
/* ssc2_sclk_in: 00 = PIO2.4 */
stm_pad_config_add_sys_cfg(pad_config, 16, 11, 12, 0);
break;
case stx7105_ssc2_sclk_pio3_4:
stm_pad_config_add_pio_out(pad_config, 3, 4, 2);
/* ssc2_sclk_in: 01 = PIO3.4 */
stm_pad_config_add_sys_cfg(pad_config, 16, 11, 12, 1);
break;
case stx7105_ssc2_sclk_pio12_0:
stm_pad_config_add_pio_out(pad_config, 12, 0, 3);
/* ssc2_sclk_in: 10 = PIO12.0 */
stm_pad_config_add_sys_cfg(pad_config, 16, 11, 12, 2);
break;
case stx7105_ssc2_sclk_pio13_4:
stm_pad_config_add_pio_out(pad_config, 13, 4, 2);
/* ssc2_sclk_in: 11 = PIO13.4 */
stm_pad_config_add_sys_cfg(pad_config, 16, 11, 12, 3);
break;
}
/* MOSI */
switch (config->routing.ssc2.mtsr) {
case stx7105_ssc2_mtsr_pio2_0:
stm_pad_config_add_pio_out(pad_config, 2, 0, 3);
break;
case stx7105_ssc2_mtsr_pio3_5:
stm_pad_config_add_pio_out(pad_config, 3, 5, 2);
break;
case stx7105_ssc2_mtsr_pio12_1:
stm_pad_config_add_pio_out(pad_config, 12, 1, 3);
break;
case stx7105_ssc2_mtsr_pio13_5:
stm_pad_config_add_pio_out(pad_config, 13, 5, 2);
break;
}
/* MISO */
switch (config->routing.ssc2.mrst) {
case stx7105_ssc2_mrst_pio2_0:
stm_pad_config_add_pio_in(pad_config, 2, 0, -1);
/* ssc2_mrst_in: 00 = PIO2.0 */
stm_pad_config_add_sys_cfg(pad_config, 16, 7, 8, 0);
break;
case stx7105_ssc2_mrst_pio3_5:
stm_pad_config_add_pio_in(pad_config, 3, 5, -1);
/* ssc2_mrst_in: 01 = PIO3.5 */
stm_pad_config_add_sys_cfg(pad_config, 16, 7, 8, 1);
break;
case stx7105_ssc2_mrst_pio12_1:
stm_pad_config_add_pio_in(pad_config, 12, 1, -1);
/* ssc2_mrst_in: 10 = PIO12.1 */
stm_pad_config_add_sys_cfg(pad_config, 16, 7, 8, 2);
break;
case stx7105_ssc2_mrst_pio13_5:
stm_pad_config_add_pio_in(pad_config, 13, 5, -1);
/* ssc2_mrst_in: 11 = PIO13.5 */
stm_pad_config_add_sys_cfg(pad_config, 16, 7, 8, 3);
break;
}
break;
case 3:
pad_config = stm_pad_config_alloc(3, 2);
/* SCK */
switch (config->routing.ssc3.sclk) {
case stx7105_ssc3_sclk_pio2_7: /* 7106 only! */
BUG_ON(cpu_data->type != CPU_STX7106);
stm_pad_config_add_pio_out(pad_config, 2, 7, 2);
/* ssc3_sclk_in: 00 = PIO2.7 */
stm_pad_config_add_sys_cfg(pad_config, 16, 18, 19, 0);
break;
case stx7105_ssc3_sclk_pio3_6:
stm_pad_config_add_pio_out(pad_config, 3, 6, 2);
/* ssc3_sclk_in: 00 = PIO3.6 */
stm_pad_config_add_sys_cfg(pad_config, 16, 18, 19, 0);
break;
case stx7105_ssc3_sclk_pio13_2:
stm_pad_config_add_pio_out(pad_config, 13, 2, 4);
/* ssc3_sclk_in: 01 = PIO13.2 */
stm_pad_config_add_sys_cfg(pad_config, 16, 18, 19, 1);
break;
case stx7105_ssc3_sclk_pio13_6:
stm_pad_config_add_pio_out(pad_config, 13, 6, 2);
/* ssc3_sclk_in: 1x = PIO13.6 */
stm_pad_config_add_sys_cfg(pad_config, 16, 18, 19, 2);
break;
}
/* MOSI */
switch (config->routing.ssc3.mtsr) {
case stx7105_ssc3_mtsr_pio2_1:
stm_pad_config_add_pio_out(pad_config, 2, 1, 3);
break;
case stx7105_ssc3_mtsr_pio3_7:
stm_pad_config_add_pio_out(pad_config, 3, 7, 3);
break;
case stx7105_ssc3_mtsr_pio13_3:
stm_pad_config_add_pio_out(pad_config, 13, 3, 4);
break;
case stx7105_ssc3_mtsr_pio13_7:
stm_pad_config_add_pio_out(pad_config, 13, 7, 2);
break;
}
/* MISO */
switch (config->routing.ssc3.mrst) {
case stx7105_ssc3_mrst_pio2_1:
stm_pad_config_add_pio_in(pad_config, 2, 1, -1);
/* ssc3_mrst_in: 00 = PIO2.1 */
stm_pad_config_add_sys_cfg(pad_config, 16, 14, 15, 0);
break;
case stx7105_ssc3_mrst_pio3_7:
stm_pad_config_add_pio_in(pad_config, 3, 7, -1);
/* ssc3_mrst_in: 01 = PIO3.7 */
stm_pad_config_add_sys_cfg(pad_config, 16, 14, 15, 1);
break;
case stx7105_ssc3_mrst_pio13_3:
stm_pad_config_add_pio_in(pad_config, 13, 3, -1);
/* ssc3_mrst_in: 10 = PIO13.3 */
stm_pad_config_add_sys_cfg(pad_config, 16, 14, 15, 2);
break;
case stx7105_ssc3_mrst_pio13_7:
stm_pad_config_add_pio_in(pad_config, 13, 7, -1);
/* ssc3_mrst_in: 11 = PIO13.7 */
stm_pad_config_add_sys_cfg(pad_config, 16, 14, 15, 3);
break;
}
break;
default:
BUG();
pad_config = NULL; /* Keep the compiler happy ;-) */
break;
}
plat_data->spi_chipselect = config->spi_chipselect;
plat_data->pad_config = pad_config;
platform_device_register(&stx7105_ssc_devices[ssc]);
return spi_busnum++;
}
/* LiRC resources --------------------------------------------------------- */
static struct platform_device stx7105_lirc_device = {
.name = "lirc-stm",
.id = -1,
.num_resources = 2,
.resource = (struct resource []) {
STM_PLAT_RESOURCE_MEM(0xfd018000, 0x234),
STM_PLAT_RESOURCE_IRQ(evt2irq(0x11a0), -1),
},
.dev.platform_data = &(struct stm_plat_lirc_data) {
/* The clock settings will be calculated by
* the driver from the system clock */
.irbclock = 0, /* use current_cpu data */
.irbclkdiv = 0, /* automatically calculate */
.irbperiodmult = 0,
.irbperioddiv = 0,
.irbontimemult = 0,
.irbontimediv = 0,
.irbrxmaxperiod = 0x5000,
.sysclkdiv = 1,
.rxpolarity = 1,
},
};
void __init stx7105_configure_lirc(struct stx7105_lirc_config *config)
{
static int configured;
struct stx7105_lirc_config default_config = {};
struct stm_plat_lirc_data *plat_data =
stx7105_lirc_device.dev.platform_data;
struct stm_pad_config *pad_config;
BUG_ON(configured);
configured = 1;
if (!config)
config = &default_config;
pad_config = stm_pad_config_alloc(3, 0);
BUG_ON(!pad_config);
plat_data->txenabled = config->tx_enabled || config->tx_od_enabled;
plat_data->pads = pad_config;
switch (config->rx_mode) {
case stx7105_lirc_rx_disabled:
/* Nothing to do */
break;
case stx7105_lirc_rx_mode_ir:
plat_data->rxuhfmode = 0;
stm_pad_config_add_pio_in(pad_config, 3, 0, -1);
break;
case stx7105_lirc_rx_mode_uhf:
plat_data->rxuhfmode = 1;
stm_pad_config_add_pio_in(pad_config, 3, 1, -1);
break;
default:
BUG();
break;
}
if (config->tx_enabled)
stm_pad_config_add_pio_out(pad_config, 3, 2, 3);
if (config->tx_od_enabled)
stm_pad_config_add_pio_out(pad_config, 3, 3, 3);
platform_device_register(&stx7105_lirc_device);
}
/* PWM resources ---------------------------------------------------------- */
static struct stm_pad_config stx7105_pwm_out0_pio4_4_pad_config = {
.gpios_num = 1,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_OUT(4, 4, 3),
},
};
static struct stm_pad_config stx7105_pwm_out0_pio13_0_pad_config = {
.gpios_num = 1,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_OUT(13, 0, 3),
},
};
static struct stm_pad_config stx7105_pwm_out1_pio4_5_pad_config = {
.gpios_num = 1,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_OUT(4, 5, 3),
},
};
static struct stm_pad_config stx7105_pwm_out1_pio13_1_pad_config = {
.gpios_num = 1,
.gpios = (struct stm_pad_gpio []) {
STM_PAD_PIO_OUT(13, 1, 3),
},
};
/* Set in stx7105_configure_pwm() */
static struct stm_plat_pwm_data stx7105_pwm_platform_data;
static struct platform_device stx7105_pwm_device = {
.name = "stm-pwm",
.id = -1,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfd010000, 0x68),
STM_PLAT_RESOURCE_IRQ(evt2irq(0x11c0), -1),
},
.dev.platform_data = &stx7105_pwm_platform_data,
};
void __init stx7105_configure_pwm(struct stx7105_pwm_config *config)
{
static int configured;
BUG_ON(configured);
configured = 1;
if (config) {
switch (config->out0) {
case stx7105_pwm_out0_disabled:
/* Nothing to do... */
break;
case stx7105_pwm_out0_pio4_4:
stx7105_pwm_platform_data.channel_enabled[0] = 1;
stx7105_pwm_platform_data.channel_pad_config[0] =
&stx7105_pwm_out0_pio4_4_pad_config;
break;
case stx7105_pwm_out0_pio13_0:
stx7105_pwm_platform_data.channel_enabled[0] = 1;
stx7105_pwm_platform_data.channel_pad_config[0] =
&stx7105_pwm_out0_pio13_0_pad_config;
break;
default:
BUG();
break;
}
switch (config->out1) {
case stx7105_pwm_out1_disabled:
/* Nothing to do... */
break;
case stx7105_pwm_out1_pio4_5:
stx7105_pwm_platform_data.channel_enabled[1] = 1;
stx7105_pwm_platform_data.channel_pad_config[1] =
&stx7105_pwm_out1_pio4_5_pad_config;
break;
case stx7105_pwm_out1_pio13_1:
stx7105_pwm_platform_data.channel_enabled[1] = 1;
stx7105_pwm_platform_data.channel_pad_config[1] =
&stx7105_pwm_out1_pio13_1_pad_config;
break;
default:
BUG();
break;
}
}
platform_device_register(&stx7105_pwm_device);
}
/* Low Power Controller ---------------------------------------------------- */
static struct platform_device stx7105_lpc_device = {
.name = "stm-rtc",
.id = -1,
.num_resources = 2,
.resource = (struct resource[]){
STM_PLAT_RESOURCE_MEM(0xfd008000, 0x600),
STM_PLAT_RESOURCE_IRQ(ILC_EXT_IRQ(7), -1),
},
.dev.platform_data = &(struct stm_plat_rtc_lpc) {
.clk_id = "CLKB_LPC",
.need_wdt_reset = 1,
.irq_edge_level = IRQ_TYPE_EDGE_FALLING,
}
};
static int __init stx7105_add_lpc(void)
{
return platform_device_register(&stx7105_lpc_device);
}
module_init(stx7105_add_lpc);