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satip-axe/kernel/drivers/stm/stx7141.c

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/*
* (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/delay.h>
#include <linux/platform_device.h>
#include <linux/ata_platform.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/stm/pad.h>
#include <linux/stm/sysconf.h>
#include <linux/stm/device.h>
#include <linux/stm/emi.h>
#include <linux/stm/stx7141.h>
#include <asm/irq-ilc.h>
/* EMI resources ---------------------------------------------------------- */
static int __initdata stx7141_emi_bank_configured[EMI_BANKS];
static void stx7141_emi_power(struct stm_device_state *device_state,
enum stm_device_power_state power)
{
int i;
int value = (power == stm_device_power_on) ? 0 : 1;
stm_device_sysconf_write(device_state, "EMI_PWR", value);
for (i = 5; i; --i) {
if (stm_device_sysconf_read(device_state, "EMI_ACK")
== value)
break;
mdelay(10);
}
return;
}
static struct platform_device stx7141_emi = {
.name = "emi",
.id = -1,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0, 128*1024*1024),
STM_PLAT_RESOURCE_MEM(0xfe700000, 0x874),
},
.dev.platform_data = &(struct stm_device_config){
.sysconfs_num = 2,
.sysconfs = (struct stm_device_sysconf []){
STM_DEVICE_SYS_CFG(32, 1, 1, "EMI_PWR"),
STM_DEVICE_SYS_STA(15, 1, 1, "EMI_ACK"),
},
.power = stx7141_emi_power,
}
};
/* COMMS block ILC -------------------------------------------------------- */
static struct platform_device stx7141_comms_ilc_device = {
.name = "ilc3",
.id = 1,
.num_resources = 1,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfd000000, 0x900),
},
.dev.platform_data = &(struct stm_plat_ilc3_data) {
.inputs_num = COMMS_ILC_NR_IRQS,
.outputs_num = 16,
.first_irq = COMMS_ILC_FIRST_IRQ,
},
};
/* PATA resources --------------------------------------------------------- */
/* EMI A20 = CS1 (active low)
* EMI A21 = CS0 (active low)
* EMI A19 = DA2
* EMI A18 = DA1
* EMI A17 = DA0 */
static struct resource stx7141_pata_resources[] = {
/* I/O base: CS1=N, CS0=A */
[0] = STM_PLAT_RESOURCE_MEM(1 << 20, 8 << 17),
/* CTL base: CS1=A, CS0=N, DA2=A, DA1=A, DA0=N */
[1] = STM_PLAT_RESOURCE_MEM((1 << 21) + (6 << 17), 4),
/* IRQ */
[2] = STM_PLAT_RESOURCE_IRQ(-1, -1),
};
static struct platform_device stx7141_pata_device = {
.name = "pata_platform",
.id = -1,
.num_resources = ARRAY_SIZE(stx7141_pata_resources),
.resource = stx7141_pata_resources,
.dev.platform_data = &(struct pata_platform_info) {
.ioport_shift = 17,
},
};
void __init stx7141_configure_pata(struct stx7141_pata_config *config)
{
static int configured;
unsigned long bank_base;
BUG_ON(configured);
configured = 1;
if (!config) {
BUG();
return;
}
BUG_ON(config->emi_bank < 0 || config->emi_bank >= EMI_BANKS);
BUG_ON(stx7141_emi_bank_configured[config->emi_bank]);
stx7141_emi_bank_configured[config->emi_bank] = 1;
bank_base = emi_bank_base(config->emi_bank);
stx7141_pata_resources[0].start += bank_base;
stx7141_pata_resources[0].end += bank_base;
stx7141_pata_resources[1].start += bank_base;
stx7141_pata_resources[1].end += bank_base;
stx7141_pata_resources[2].start = config->irq;
stx7141_pata_resources[2].end = config->irq;
emi_config_pata(config->emi_bank, config->pc_mode);
platform_device_register(&stx7141_pata_device);
}
/* NAND Resources --------------------------------------------------------- */
static struct platform_device stx7141_nand_emi_device = {
.name = "stm-nand-emi",
.dev.platform_data = &(struct stm_plat_nand_emi_data) {
},
};
static struct platform_device stx7141_nand_flex_device = {
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM_NAMED("flex_mem", 0xFE701000, 0x1000),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(150), -1),
},
.dev.platform_data = &(struct stm_plat_nand_flex_data) {
},
};
void __init stx7141_configure_nand(struct stm_nand_config *config)
{
struct stm_plat_nand_flex_data *flex_data;
struct stm_plat_nand_emi_data *emi_data;
switch (config->driver) {
case stm_nand_emi:
/* Configure device for stm-nand-emi driver */
emi_data = stx7141_nand_emi_device.dev.platform_data;
emi_data->nr_banks = config->nr_banks;
emi_data->banks = config->banks;
emi_data->emi_rbn_gpio = config->rbn.emi_gpio;
platform_device_register(&stx7141_nand_emi_device);
break;
case stm_nand_flex:
case stm_nand_afm:
/* Configure device for stm-nand-flex/afm driver */
flex_data = stx7141_nand_flex_device.dev.platform_data;
flex_data->nr_banks = config->nr_banks;
flex_data->banks = config->banks;
flex_data->flex_rbn_connected = config->rbn.flex_connected;
stx7141_nand_flex_device.name =
(config->driver == stm_nand_flex) ?
"stm-nand-flex" : "stm-nand-afm";
platform_device_register(&stx7141_nand_flex_device);
break;
}
}
/* FDMA resources --------------------------------------------------------- */
static struct stm_plat_fdma_fw_regs stm_fdma_firmware_7141 = {
.rev_id = 0x8000 + (0x000 << 2), /* 0x8000 */
.cmd_statn = 0x8000 + (0x450 << 2), /* 0x9140 */
.req_ctln = 0x8000 + (0x460 << 2), /* 0x9180 */
.ptrn = 0x8000 + (0x560 << 2), /* 0x9580 */
.cntn = 0x8000 + (0x562 << 2), /* 0x9588 */
.saddrn = 0x8000 + (0x563 << 2), /* 0x958c */
.daddrn = 0x8000 + (0x564 << 2), /* 0x9590 */
};
static struct stm_plat_fdma_hw stx7141_fdma_hw = {
.slim_regs = {
.id = 0x0000 + (0x000 << 2), /* 0x0000 */
.ver = 0x0000 + (0x001 << 2), /* 0x0004 */
.en = 0x0000 + (0x002 << 2), /* 0x0008 */
.clk_gate = 0x0000 + (0x003 << 2), /* 0x000c */
},
.dmem = {
.offset = 0x8000,
.size = 0x800 << 2, /* 2048 * 4 = 8192 */
},
.periph_regs = {
.sync_reg = 0x8000 + (0xfe2 << 2), /* 0xbf88 */
.cmd_sta = 0x8000 + (0xff0 << 2), /* 0xbfc0 */
.cmd_set = 0x8000 + (0xff1 << 2), /* 0xbfc4 */
.cmd_clr = 0x8000 + (0xff2 << 2), /* 0xbfc8 */
.cmd_mask = 0x8000 + (0xff3 << 2), /* 0xbfcc */
.int_sta = 0x8000 + (0xff4 << 2), /* 0xbfd0 */
.int_set = 0x8000 + (0xff5 << 2), /* 0xbfd4 */
.int_clr = 0x8000 + (0xff6 << 2), /* 0xbfd8 */
.int_mask = 0x8000 + (0xff7 << 2), /* 0xbfdc */
},
.imem = {
.offset = 0xc000,
.size = 0x1000 << 2, /* 4096 * 4 = 16384 */
},
};
static struct stm_plat_fdma_data stx7141_fdma_platform_data = {
.hw = &stx7141_fdma_hw,
.fw = &stm_fdma_firmware_7141,
};
static struct platform_device stx7141_fdma_devices[] = {
{
.name = "stm-fdma",
.id = 0,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfe220000, 0x10000),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(44), -1),
},
.dev.platform_data = &stx7141_fdma_platform_data,
}, {
.name = "stm-fdma",
.id = 1,
.num_resources = 2,
.resource = (struct resource[2]) {
STM_PLAT_RESOURCE_MEM(0xfe410000, 0x10000),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(45), -1),
},
.dev.platform_data = &stx7141_fdma_platform_data,
}
};
static struct platform_device stx7141_fdma_xbar_device = {
.name = "stm-fdma-xbar",
.id = -1,
.num_resources = 1,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfe420000, 0x1000),
},
};
/* Hardware RNG resources ------------------------------------------------- */
static struct platform_device stx7141_rng_hwrandom_device = {
.name = "stm-hwrandom",
.id = -1,
.num_resources = 1,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfe250000, 0x1000),
}
};
static struct platform_device stx7141_rng_devrandom_device = {
.name = "stm-rng",
.id = -1,
.num_resources = 1,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfe250000, 0x1000),
}
};
/* Internal temperature sensor resources ---------------------------------- */
static void stx7141_temp_power(struct stm_device_state *device_state,
enum stm_device_power_state power)
{
int value = (power == stm_device_power_on) ? 1 : 0;
stm_device_sysconf_write(device_state, "TEMP_PWR", value);
}
static unsigned long stx7141_temp1_get_data(void *priv)
{
/* Some "bright sparkle" decided to split the data field
* between SYS_STA12 & SYS_STA13 registers, having 11 (!!!)
* bits unused in the SYS_STA13... WHY OH WHY?!?!?! */
static struct sysconf_field *data1_0_3, *data1_4_6;
if (!data1_0_3)
data1_0_3 = sysconf_claim(SYS_STA, 12, 28, 31, "stm-temp.1");
if (!data1_4_6)
data1_4_6 = sysconf_claim(SYS_STA, 13, 0, 2, "stm-temp.1");
if (!data1_0_3 || !data1_4_6)
return 0;
return (sysconf_read(data1_4_6) << 4) | sysconf_read(data1_0_3);
}
static struct platform_device stx7141_temp_devices[] = {
{
.name = "stm-temp",
.id = 0,
.dev.platform_data = &(struct plat_stm_temp_data) {
.dcorrect = { SYS_CFG, 41, 5, 9 },
.overflow = { SYS_STA, 12, 8, 8 },
.data = { SYS_STA, 12, 10, 16 },
.device_config = &(struct stm_device_config) {
.sysconfs_num = 1,
.power = stx7141_temp_power,
.sysconfs = (struct stm_device_sysconf []){
STM_DEVICE_SYS_CFG(41, 4, 4,
"TEMP_PWR"),
},
},
},
}, {
.name = "stm-temp",
.id = 1,
.dev.platform_data = &(struct plat_stm_temp_data) {
.dcorrect = { SYS_CFG, 41, 15, 19 },
.overflow = { SYS_STA, 12, 26, 26 },
.custom_get_data = stx7141_temp1_get_data,
.device_config = &(struct stm_device_config) {
.sysconfs_num = 1,
.power = stx7141_temp_power,
.sysconfs = (struct stm_device_sysconf []){
STM_DEVICE_SYS_CFG(41, 14, 14,
"TEMP_PWR"),
},
},
},
}, {
.name = "stm-temp",
.id = 2,
.dev.platform_data = &(struct plat_stm_temp_data) {
.dcorrect = { SYS_CFG, 41, 25, 29 },
.overflow = { SYS_STA, 13, 12, 12 },
.data = { SYS_STA, 13, 14, 20 },
.device_config = &(struct stm_device_config) {
.sysconfs_num = 1,
.power = stx7141_temp_power,
.sysconfs = (struct stm_device_sysconf []){
STM_DEVICE_SYS_CFG(41, 24, 24,
"TEMP_PWR"),
},
},
},
}
};
/* PIO ports resources ---------------------------------------------------- */
static struct platform_device stx7141_pio_devices[] = {
/* Some eee... individual named the first PIO block PIO1,
* so there is no stm-gpio.0 here... */
/* COMMS PIO blocks */
[1] = {
.name = "stm-gpio",
.id = 1,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfd020000, 0x100),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(49), -1),
},
},
[2] = {
.name = "stm-gpio",
.id = 2,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfd021000, 0x100),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(50), -1),
},
},
[3] = {
.name = "stm-gpio",
.id = 3,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfd022000, 0x100),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(51), -1),
},
},
[4] = {
.name = "stm-gpio",
.id = 4,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfd023000, 0x100),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(52), -1),
},
},
[5] = {
.name = "stm-gpio",
.id = 5,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfd024000, 0x100),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(53), -1),
},
},
[6] = {
.name = "stm-gpio",
.id = 6,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfd025000, 0x100),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(54), -1),
},
},
[7] = {
.name = "stm-gpio",
.id = 7,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfd026000, 0x100),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(55), -1),
},
},
/* Standalone PIO blocks */
[8] = {
.name = "stm-gpio",
.id = 8,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfe010000, 0x100),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(59), -1),
},
},
[9] = {
.name = "stm-gpio",
.id = 9,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfe011000, 0x100),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(60), -1),
},
},
[10] = {
.name = "stm-gpio",
.id = 10,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfe012000, 0x100),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(61), -1),
},
},
[11] = {
.name = "stm-gpio",
.id = 11,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfe013000, 0x100),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(62), -1),
},
},
[12] = {
.name = "stm-gpio",
.id = 12,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfe014000, 0x100),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(63), -1),
},
},
[13] = {
.name = "stm-gpio",
.id = 13,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfe015000, 0x100),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(64), -1),
},
},
[14] = {
.name = "stm-gpio",
.id = 14,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfe016000, 0x100),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(65), -1),
},
},
[15] = {
.name = "stm-gpio",
.id = 15,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfe017000, 0x100),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(66), -1),
},
},
[16] = {
.name = "stm-gpio",
.id = 16,
.num_resources = 2,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfe018000, 0x100),
STM_PLAT_RESOURCE_IRQ(ILC_IRQ(67), -1),
},
},
};
struct stx7141_pio_sysconf {
unsigned char num, lsb, msb;
struct sysconf_field *field;
};
static struct stx7141_pio_sysconf stx7141_pio_sysconfs[][8] = {
{
/* PIO0 doesn't exist */
}, {
{ 19, 0, 1 }, /* PIO1[0] */
{ 19, 2, 3 }, /* PIO1[1] */
{ 19, 4, 5 }, /* PIO1[2] */
{ 19, 5, 7 }, /* PIO1[3] */
{ 19, 8, 8 }, /* PIO1[4] */
{ 19, 9, 9 }, /* PIO1[5] */
{ 19, 10, 10 }, /* PIO1[6] */
{ 19, 11, 11 }, /* PIO1[7] */
}, {
{ 19, 12, 12 }, /* PIO2[0] */
{ 19, 13, 13 }, /* PIO2[1] */
{ 19, 14, 14 }, /* PIO2[2] */
{ 19, 15, 15 }, /* PIO2[3] */
{ 19, 16, 16 }, /* PIO2[4] */
{ 19, 17, 17 }, /* PIO2[5] */
{ 19, 18, 18 }, /* PIO2[6] */
{ 19, 19, 19 }, /* PIO2[7] */
}, {
{ 19, 20, 20 }, /* PIO3[0] */
{ 19, 21, 21 }, /* PIO3[1] */
{ 19, 22, 23 }, /* PIO3[2] */
{ 19, 24, 25 }, /* PIO3[3] */
{ 19, 26, 27 }, /* PIO3[4] */
{ 19, 28, 29 }, /* PIO3[5] */
{ 19, 30, 31 }, /* PIO3[6] */
{ 20, 0, 0 }, /* PIO3[7] */
}, {
{ 20, 1, 2 }, /* PIO4[0] */
{ 20, 3, 4 }, /* PIO4[1] */
{ 20, 5, 6 }, /* PIO4[2] */
{ 20, 7, 8 }, /* PIO4[3] */
{ 20, 9, 10 }, /* PIO4[4] */
{ 20, 11, 12 }, /* PIO4[5] */
{ 20, 13, 13 }, /* PIO4[6] */
{ 20, 14, 14 }, /* PIO4[7] */
}, {
{ 20, 15, 16 }, /* PIO5[0] */
{ 20, 17, 18 }, /* PIO5[1] */
{ 20, 19, 19 }, /* PIO5[2] */
{ 20, 20, 20 }, /* PIO5[3] */
{ 20, 21, 21 }, /* PIO5[4] */
{ 20, 22, 23 }, /* PIO5[5] */
{ 20, 24, 24 }, /* PIO5[6] */
{ 20, 25, 26 }, /* PIO5[7] */
}, {
{ 20, 27, 28 }, /* PIO6[0] */
{ 20, 29, 30 }, /* PIO6[1] */
{ 25, 0, 1 }, /* PIO6[2] */
{ 25, 2, 3 }, /* PIO6[3] */
{ 25, 4, 5 }, /* PIO6[4] */
{ 25, 6, 7 }, /* PIO6[5] */
{ 25, 8, 9 }, /* PIO6[6] */
{ 25, 10, 11 }, /* PIO6[7] */
}, {
{ 25, 12, 13 }, /* PIO7[0] */
{ 25, 14, 15 }, /* PIO7[1] */
{ 25, 16, 17 }, /* PIO7[2] */
{ 25, 18, 19 }, /* PIO7[3] */
{ 25, 20, 21 }, /* PIO7[4] */
{ 25, 22, 23 }, /* PIO7[5] */
{ 25, 24, 25 }, /* PIO7[6] */
{ 25, 26, 27 }, /* PIO7[7] */
}, {
{ 25, 28, 30 }, /* PIO8[0] */
{ 35, 0, 2 }, /* PIO8[1] */
{ 35, 3, 5 }, /* PIO8[2] */
{ 35, 6, 8 }, /* PIO8[3] */
{ 35, 9, 11 }, /* PIO8[4] */
{ 35, 12, 14 }, /* PIO8[5] */
{ 35, 15, 17 }, /* PIO8[6] */
{ 35, 18, 20 }, /* PIO8[7] */
}, {
{ 35, 21, 22 }, /* PIO9[0] */
{ 35, 23, 24 }, /* PIO9[1] */
{ 35, 25, 26 }, /* PIO9[2] */
{ 35, 27, 28 }, /* PIO9[3] */
{ 35, 29, 30 }, /* PIO9[4] */
{ 46, 0, 1 }, /* PIO9[5] */
{ 46, 2, 3 }, /* PIO9[6] */
{ 46, 4, 5 }, /* PIO9[7] */
}, {
{ 46, 6, 7 }, /* PIO10[0] */
{ 46, 8, 9 }, /* PIO10[1] */
{ 46, 10, 11 }, /* PIO10[2] */
{ 46, 12, 13 }, /* PIO10[3] */
{ 46, 14, 15 }, /* PIO10[4] */
{ 46, 16, 17 }, /* PIO10[5] */
{ 46, 18, 19 }, /* PIO10[6] */
{ 46, 20, 21 }, /* PIO10[7] */
}, {
{ 46, 22, 23 }, /* PIO11[0] */
{ 46, 24, 26 }, /* PIO11[1] */
{ 46, 27, 29 }, /* PIO11[2] */
{ 47, 0, 2 }, /* PIO11[3] */
{ 47, 3, 5 }, /* PIO11[4] */
{ 47, 6, 8 }, /* PIO11[5] */
{ 47, 9, 11 }, /* PIO11[6] */
{ 47, 12, 14 }, /* PIO11[7] */
}, {
{ 47, 15, 17 }, /* PIO12[0] */
{ 47, 18, 20 }, /* PIO12[1] */
{ 47, 21, 23 }, /* PIO12[2] */
{ 47, 24, 25 }, /* PIO12[3] */
{ 47, 26, 27 }, /* PIO12[4] */
{ 47, 28, 29 }, /* PIO12[5] */
{ 48, 0, 2 }, /* PIO12[6] */
{ 48, 3, 5 }, /* PIO12[7] */
}, {
{ 48, 6, 8 }, /* PIO13[0] */
{ 48, 9, 11 }, /* PIO13[1] */
{ 48, 12, 14 }, /* PIO13[2] */
{ 48, 15, 17 }, /* PIO13[3] */
{ 48, 18, 20 }, /* PIO13[4] */
{ 48, 21, 23 }, /* PIO13[5] */
{ 48, 24, 25 }, /* PIO13[6] */
{ 48, 26, 27 }, /* PIO13[7] */
}, {
{ 48, 28, 30 }, /* PIO14[0] */
{ 49, 0, 2 }, /* PIO14[1] */
{ 49, 3, 5 }, /* PIO14[2] */
{ 49, 6, 8 }, /* PIO14[3] */
{ 49, 9, 11 }, /* PIO14[4] */
{ 49, 12, 14 }, /* PIO14[5] */
{ 49, 15, 17 }, /* PIO14[6] */
{ 49, 18, 19 }, /* PIO14[7] */
}, {
{ 49, 20, 21 }, /* PIO15[0] */
{ 49, 22, 23 }, /* PIO15[1] */
{ 49, 24, 25 }, /* PIO15[2] */
{ 49, 26, 27 }, /* PIO15[3] */
{ 49, 28, 28 }, /* PIO15[4] */
{ 49, 29, 29 }, /* PIO15[5] */
{ 49, 30, 30 }, /* PIO15[6] */
{ 50, 0, 1 }, /* PIO15[7] */
}, {
{ 50, 2, 3 }, /* PIO16[0] */
{ 50, 4, 5 }, /* PIO16[1] */
{ 50, 6, 7 }, /* PIO16[2] */
{ 50, 8, 8 }, /* PIO16[3] */
{ 50, 9, 9 }, /* PIO16[4] */
{ 50, 10, 10 }, /* PIO16[5] */
{ 50, 11, 11 }, /* PIO16[6] */
{ 50, 12, 12 }, /* PIO16[7] */
}
};
static int stx7141_pio_config(unsigned gpio,
enum stm_pad_gpio_direction direction, int function, void *priv)
{
int port = stm_gpio_port(gpio);
int pin = stm_gpio_pin(gpio);
struct stx7141_pio_sysconf *sysconf;
BUG_ON(port < 1);
BUG_ON(port > ARRAY_SIZE(stx7141_pio_sysconfs));
sysconf = &stx7141_pio_sysconfs[port][pin];
if (direction == stm_pad_gpio_direction_in) {
BUG_ON(function != -1);
stm_gpio_direction(gpio, STM_GPIO_DIRECTION_IN);
} else {
BUG_ON(function < 0);
BUG_ON(function > (1 << (sysconf->msb - sysconf->lsb + 1)) - 1);
switch (direction) {
case stm_pad_gpio_direction_out:
stm_gpio_direction(gpio, STM_GPIO_DIRECTION_OUT);
break;
case stm_pad_gpio_direction_bidir:
stm_gpio_direction(gpio, STM_GPIO_DIRECTION_BIDIR);
break;
default:
BUG();
break;
}
if (!sysconf->field) {
sysconf->field = sysconf_claim(SYS_CFG, sysconf->num,
sysconf->lsb, sysconf->msb,
"PIO Config");
BUG_ON(!sysconf->field);
}
sysconf_write(sysconf->field, function);
}
return 0;
}
/* sysconf resources ------------------------------------------------------ */
static struct platform_device stx7141_sysconf_device = {
.name = "stm-sysconf",
.id = -1,
.num_resources = 1,
.resource = (struct resource[]) {
STM_PLAT_RESOURCE_MEM(0xfe001000, 0x1e0),
},
.dev.platform_data = &(struct stm_plat_sysconf_data) {
.groups_num = 3,
.groups = (struct stm_plat_sysconf_group []) {
PLAT_SYSCONF_GROUP(SYS_DEV, 0x000),
PLAT_SYSCONF_GROUP(SYS_STA, 0x008),
PLAT_SYSCONF_GROUP(SYS_CFG, 0x100),
},
},
};
/* Early initialisation-----------------------------------------------------*/
/* Initialise devices which are required early in the boot process. */
void __init stx7141_early_device_init(void)
{
struct sysconf_field *sc;
unsigned long devid;
unsigned long chip_revision;
/* Initialise PIO and sysconf drivers */
sysconf_early_init(&stx7141_sysconf_device, 1);
stm_gpio_early_init(stx7141_pio_devices,
ARRAY_SIZE(stx7141_pio_devices),
ILC_FIRST_IRQ + ILC_NR_IRQS);
stm_pad_init(ARRAY_SIZE(stx7141_pio_devices) * STM_GPIO_PINS_PER_PORT,
-1, 0, stx7141_pio_config);
sc = sysconf_claim(SYS_DEV, 0, 0, 31, "devid");
devid = sysconf_read(sc);
chip_revision = (devid >> 28) + 1;
boot_cpu_data.cut_major = chip_revision;
printk(KERN_INFO "STx7141 version %ld.x\n", chip_revision);
/* We haven't configured the LPC, so the sleep instruction may
* do bad things. Thus we disable it here. */
disable_hlt();
}
/* Pre-arch initialisation ------------------------------------------------ */
static struct platform_device *stx7141_postcore_devices[] __initdata = {
&stx7141_emi,
&stx7141_comms_ilc_device,
};
static int __init stx7141_postcore_setup(void)
{
int err = 0;
int i;
for (i = 0; i < ARRAY_SIZE(stx7141_pio_devices) && !err; i++)
if (stx7141_pio_devices[i].name) /* No PIO0 */
err = platform_device_register(&stx7141_pio_devices[i]);
return err ? err : platform_add_devices(stx7141_postcore_devices,
ARRAY_SIZE(stx7141_postcore_devices));
}
postcore_initcall(stx7141_postcore_setup);
/* Late initialisation ---------------------------------------------------- */
static struct platform_device *stx7141_devices[] __initdata = {
&stx7141_fdma_devices[0],
&stx7141_fdma_devices[1],
&stx7141_fdma_xbar_device,
&stx7141_sysconf_device,
&stx7141_rng_hwrandom_device,
&stx7141_rng_devrandom_device,
&stx7141_temp_devices[0],
&stx7141_temp_devices[1],
&stx7141_temp_devices[2],
};
static int __init stx7141_devices_setup(void)
{
return platform_add_devices(stx7141_devices,
ARRAY_SIZE(stx7141_devices));
}
device_initcall(stx7141_devices_setup);
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