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u-boot/board/nokia/rx51/rx51.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

675 lines
17 KiB
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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2012
* Ивайло Димитров <freemangordon@abv.bg>
*
* (C) Copyright 2011-2012
* Pali Rohár <pali.rohar@gmail.com>
*
* (C) Copyright 2010
* Alistair Buxton <a.j.buxton@gmail.com>
*
* Derived from Beagle Board and 3430 SDP code:
* (C) Copyright 2004-2008
* Texas Instruments, <www.ti.com>
*
* Author :
* Sunil Kumar <sunilsaini05@gmail.com>
* Shashi Ranjan <shashiranjanmca05@gmail.com>
*
* Richard Woodruff <r-woodruff2@ti.com>
* Syed Mohammed Khasim <khasim@ti.com>
*/
#include <common.h>
#include <watchdog.h>
#include <malloc.h>
#include <twl4030.h>
#include <i2c.h>
#include <video_fb.h>
#include <asm/io.h>
#include <asm/setup.h>
#include <asm/bitops.h>
#include <asm/mach-types.h>
#include <asm/arch/mux.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mmc_host_def.h>
#include "rx51.h"
#include "tag_omap.h"
DECLARE_GLOBAL_DATA_PTR;
GraphicDevice gdev;
const omap3_sysinfo sysinfo = {
DDR_STACKED,
"Nokia RX-51",
"OneNAND"
};
/* This structure contains default omap tags needed for booting Maemo 5 */
static struct tag_omap omap[] = {
OMAP_TAG_UART_CONFIG(0x04),
OMAP_TAG_SERIAL_CONSOLE_CONFIG(0x03, 0x01C200),
OMAP_TAG_LCD_CONFIG("acx565akm", "internal", 90, 0x18),
OMAP_TAG_GPIO_SWITCH_CONFIG("cam_focus", 0x44, 0x1, 0x2, 0x0),
OMAP_TAG_GPIO_SWITCH_CONFIG("cam_launch", 0x45, 0x1, 0x2, 0x0),
OMAP_TAG_GPIO_SWITCH_CONFIG("cam_shutter", 0x6e, 0x1, 0x0, 0x0),
OMAP_TAG_GPIO_SWITCH_CONFIG("cmt_apeslpx", 0x46, 0x2, 0x2, 0x0),
OMAP_TAG_GPIO_SWITCH_CONFIG("cmt_bsi", 0x9d, 0x2, 0x2, 0x0),
OMAP_TAG_GPIO_SWITCH_CONFIG("cmt_en", 0x4a, 0x2, 0x2, 0x0),
OMAP_TAG_GPIO_SWITCH_CONFIG("cmt_rst", 0x4b, 0x6, 0x2, 0x0),
OMAP_TAG_GPIO_SWITCH_CONFIG("cmt_rst_rq", 0x49, 0x6, 0x2, 0x0),
OMAP_TAG_GPIO_SWITCH_CONFIG("cmt_wddis", 0x0d, 0x2, 0x2, 0x0),
OMAP_TAG_GPIO_SWITCH_CONFIG("headphone", 0xb1, 0x1, 0x1, 0x0),
OMAP_TAG_GPIO_SWITCH_CONFIG("kb_lock", 0x71, 0x1, 0x0, 0x0),
OMAP_TAG_GPIO_SWITCH_CONFIG("proximity", 0x59, 0x0, 0x0, 0x0),
OMAP_TAG_GPIO_SWITCH_CONFIG("sleep_ind", 0xa2, 0x2, 0x2, 0x0),
OMAP_TAG_GPIO_SWITCH_CONFIG("slide", GPIO_SLIDE, 0x0, 0x0, 0x0),
OMAP_TAG_WLAN_CX3110X_CONFIG(0x25, 0xff, 87, 42, -1),
OMAP_TAG_PARTITION_CONFIG(PART1_NAME, PART1_SIZE * PART1_MULL,
PART1_OFFS, PART1_MASK),
OMAP_TAG_PARTITION_CONFIG(PART2_NAME, PART2_SIZE * PART2_MULL,
PART2_OFFS, PART2_MASK),
OMAP_TAG_PARTITION_CONFIG(PART3_NAME, PART3_SIZE * PART3_MULL,
PART3_OFFS, PART3_MASK),
OMAP_TAG_PARTITION_CONFIG(PART4_NAME, PART4_SIZE * PART4_MULL,
PART4_OFFS, PART4_MASK),
OMAP_TAG_PARTITION_CONFIG(PART5_NAME, PART5_SIZE * PART5_MULL,
PART5_OFFS, PART5_MASK),
OMAP_TAG_PARTITION_CONFIG(PART6_NAME, PART6_SIZE * PART6_MULL,
PART6_OFFS, PART6_MASK),
OMAP_TAG_BOOT_REASON_CONFIG("pwr_key"),
OMAP_TAG_VERSION_STR_CONFIG("product", "RX-51"),
OMAP_TAG_VERSION_STR_CONFIG("hw-build", "2101"),
OMAP_TAG_VERSION_STR_CONFIG("nolo", "1.4.14"),
OMAP_TAG_VERSION_STR_CONFIG("boot-mode", "normal"),
{ }
};
static char *boot_reason_ptr;
static char *hw_build_ptr;
static char *nolo_version_ptr;
static char *boot_mode_ptr;
/*
* Routine: init_omap_tags
* Description: Initialize pointers to values in tag_omap
*/
static void init_omap_tags(void)
{
char *component;
char *version;
int i = 0;
while (omap[i].hdr.tag) {
switch (omap[i].hdr.tag) {
case OMAP_TAG_BOOT_REASON:
boot_reason_ptr = omap[i].u.boot_reason.reason_str;
break;
case OMAP_TAG_VERSION_STR:
component = omap[i].u.version.component;
version = omap[i].u.version.version;
if (strcmp(component, "hw-build") == 0)
hw_build_ptr = version;
else if (strcmp(component, "nolo") == 0)
nolo_version_ptr = version;
else if (strcmp(component, "boot-mode") == 0)
boot_mode_ptr = version;
break;
default:
break;
}
i++;
}
}
static void reuse_omap_atags(struct tag_omap *t)
{
char *component;
char *version;
while (t->hdr.tag) {
switch (t->hdr.tag) {
case OMAP_TAG_BOOT_REASON:
memset(boot_reason_ptr, 0, 12);
strcpy(boot_reason_ptr, t->u.boot_reason.reason_str);
break;
case OMAP_TAG_VERSION_STR:
component = t->u.version.component;
version = t->u.version.version;
if (strcmp(component, "hw-build") == 0) {
memset(hw_build_ptr, 0, 12);
strcpy(hw_build_ptr, version);
} else if (strcmp(component, "nolo") == 0) {
memset(nolo_version_ptr, 0, 12);
strcpy(nolo_version_ptr, version);
} else if (strcmp(component, "boot-mode") == 0) {
memset(boot_mode_ptr, 0, 12);
strcpy(boot_mode_ptr, version);
}
break;
default:
break;
}
t = tag_omap_next(t);
}
}
/*
* Routine: reuse_atags
* Description: Reuse atags from previous bootloader.
* Reuse only only HW build, boot reason, boot mode and nolo
*/
static void reuse_atags(void)
{
struct tag *t = (struct tag *)gd->bd->bi_boot_params;
/* First tag must be ATAG_CORE */
if (t->hdr.tag != ATAG_CORE)
return;
if (!boot_reason_ptr || !hw_build_ptr)
return;
/* Last tag must be ATAG_NONE */
while (t->hdr.tag != ATAG_NONE) {
switch (t->hdr.tag) {
case ATAG_REVISION:
memset(hw_build_ptr, 0, 12);
sprintf(hw_build_ptr, "%x", t->u.revision.rev);
break;
case ATAG_BOARD:
reuse_omap_atags((struct tag_omap *)&t->u);
break;
default:
break;
}
t = tag_next(t);
}
}
/*
* Routine: board_init
* Description: Early hardware init.
*/
int board_init(void)
{
/* in SRAM or SDRAM, finish GPMC */
gpmc_init();
/* boot param addr */
gd->bd->bi_boot_params = OMAP34XX_SDRC_CS0 + 0x100;
return 0;
}
/*
* Routine: get_board_revision
* Description: Return board revision.
*/
u32 get_board_rev(void)
{
return simple_strtol(hw_build_ptr, NULL, 16);
}
/*
* Routine: setup_board_tags
* Description: Append board specific boot tags.
*/
void setup_board_tags(struct tag **in_params)
{
int setup_console_atag;
char *setup_boot_reason_atag;
char *setup_boot_mode_atag;
char *str;
int i;
int size;
int total_size;
struct tag *params;
struct tag_omap *t;
params = (struct tag *)gd->bd->bi_boot_params;
params->u.core.flags = 0x0;
params->u.core.pagesize = 0x1000;
params->u.core.rootdev = 0x0;
/* append omap atag only if env setup_omap_atag is set to 1 */
str = env_get("setup_omap_atag");
if (!str || str[0] != '1')
return;
str = env_get("setup_console_atag");
if (str && str[0] == '1')
setup_console_atag = 1;
else
setup_console_atag = 0;
setup_boot_reason_atag = env_get("setup_boot_reason_atag");
setup_boot_mode_atag = env_get("setup_boot_mode_atag");
params = *in_params;
t = (struct tag_omap *)&params->u;
total_size = sizeof(struct tag_header);
for (i = 0; omap[i].hdr.tag; i++) {
/* skip serial console tag */
if (!setup_console_atag &&
omap[i].hdr.tag == OMAP_TAG_SERIAL_CONSOLE)
continue;
size = omap[i].hdr.size + sizeof(struct tag_omap_header);
memcpy(t, &omap[i], size);
/* set uart tag to 0 - disable serial console */
if (!setup_console_atag && omap[i].hdr.tag == OMAP_TAG_UART)
t->u.uart.enabled_uarts = 0;
/* change boot reason */
if (setup_boot_reason_atag &&
omap[i].hdr.tag == OMAP_TAG_BOOT_REASON) {
memset(t->u.boot_reason.reason_str, 0, 12);
strcpy(t->u.boot_reason.reason_str,
setup_boot_reason_atag);
}
/* change boot mode */
if (setup_boot_mode_atag &&
omap[i].hdr.tag == OMAP_TAG_VERSION_STR &&
strcmp(omap[i].u.version.component, "boot-mode") == 0) {
memset(t->u.version.version, 0, 12);
strcpy(t->u.version.version, setup_boot_mode_atag);
}
total_size += size;
t = tag_omap_next(t);
}
params->hdr.tag = ATAG_BOARD;
params->hdr.size = total_size >> 2;
params = tag_next(params);
*in_params = params;
}
/*
* Routine: video_hw_init
* Description: Set up the GraphicDevice depending on sys_boot.
*/
void *video_hw_init(void)
{
/* fill in Graphic Device */
gdev.frameAdrs = 0x8f9c0000;
gdev.winSizeX = 800;
gdev.winSizeY = 480;
gdev.gdfBytesPP = 2;
gdev.gdfIndex = GDF_16BIT_565RGB;
memset((void *)gdev.frameAdrs, 0, 0xbb800);
return (void *) &gdev;
}
/*
* Routine: twl4030_regulator_set_mode
* Description: Set twl4030 regulator mode over i2c powerbus.
*/
static void twl4030_regulator_set_mode(u8 id, u8 mode)
{
u16 msg = MSG_SINGULAR(DEV_GRP_P1, id, mode);
twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER,
TWL4030_PM_MASTER_PB_WORD_MSB, msg >> 8);
twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER,
TWL4030_PM_MASTER_PB_WORD_LSB, msg & 0xff);
}
static void omap3_emu_romcode_call(u32 service_id, u32 *parameters)
{
u32 i, num_params = *parameters;
u32 *sram_scratch_space = (u32 *)OMAP3_PUBLIC_SRAM_SCRATCH_AREA;
/*
* copy the parameters to an un-cached area to avoid coherency
* issues
*/
for (i = 0; i < num_params; i++) {
__raw_writel(*parameters, sram_scratch_space);
parameters++;
sram_scratch_space++;
}
/* Now make the PPA call */
do_omap3_emu_romcode_call(service_id, OMAP3_PUBLIC_SRAM_SCRATCH_AREA);
}
void omap3_set_aux_cr_secure(u32 acr)
{
struct emu_hal_params_rx51 emu_romcode_params = { 0, };
emu_romcode_params.num_params = 2;
emu_romcode_params.param1 = acr;
omap3_emu_romcode_call(OMAP3_EMU_HAL_API_WRITE_ACR,
(u32 *)&emu_romcode_params);
}
/*
* Routine: omap3_update_aux_cr_secure_rx51
* Description: Modify the contents Auxiliary Control Register.
* Parameters:
* set_bits - bits to set in ACR
* clr_bits - bits to clear in ACR
*/
static void omap3_update_aux_cr_secure_rx51(u32 set_bits, u32 clear_bits)
{
u32 acr;
/* Read ACR */
asm volatile ("mrc p15, 0, %0, c1, c0, 1" : "=r" (acr));
acr &= ~clear_bits;
acr |= set_bits;
omap3_set_aux_cr_secure(acr);
}
/*
* Routine: misc_init_r
* Description: Configure board specific parts.
*/
int misc_init_r(void)
{
char buf[12];
u8 state;
/* reset lp5523 led */
i2c_set_bus_num(1);
state = 0xff;
i2c_write(0x32, 0x3d, 1, &state, 1);
i2c_set_bus_num(0);
/* initialize twl4030 power managment */
twl4030_power_init();
/* set VSIM to 1.8V */
twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VSIM_DEDICATED,
TWL4030_PM_RECEIVER_VSIM_VSEL_18,
TWL4030_PM_RECEIVER_VSIM_DEV_GRP,
TWL4030_PM_RECEIVER_DEV_GRP_P1);
/* store I2C access state */
twl4030_i2c_read_u8(TWL4030_CHIP_PM_MASTER, TWL4030_PM_MASTER_PB_CFG,
&state);
/* enable I2C access to powerbus (needed for twl4030 regulator) */
twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, TWL4030_PM_MASTER_PB_CFG,
0x02);
/* set VAUX3, VSIM and VMMC1 state to active - enable eMMC memory */
twl4030_regulator_set_mode(RES_VAUX3, RES_STATE_ACTIVE);
twl4030_regulator_set_mode(RES_VSIM, RES_STATE_ACTIVE);
twl4030_regulator_set_mode(RES_VMMC1, RES_STATE_ACTIVE);
/* restore I2C access state */
twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, TWL4030_PM_MASTER_PB_CFG,
state);
/* set env variable attkernaddr for relocated kernel */
sprintf(buf, "%#x", KERNEL_ADDRESS);
env_set("attkernaddr", buf);
/* initialize omap tags */
init_omap_tags();
/* reuse atags from previous bootloader */
reuse_atags();
omap_die_id_display();
print_cpuinfo();
/*
* Cortex-A8(r1p0..r1p2) errata 430973 workaround
* Set IBE bit in Auxiliary Control Register
*
* Call this routine only on real secure device
* Qemu does not implement secure PPA and crash
*/
if (get_device_type() == HS_DEVICE)
omap3_update_aux_cr_secure_rx51(1 << 6, 0);
return 0;
}
/*
* Routine: set_muxconf_regs
* Description: Setting up the configuration Mux registers specific to the
* hardware. Many pins need to be moved from protect to primary
* mode.
*/
void set_muxconf_regs(void)
{
MUX_RX51();
}
static unsigned long int twl_wd_time; /* last time of watchdog reset */
static unsigned long int twl_i2c_lock;
/*
* Routine: hw_watchdog_reset
* Description: Reset timeout of twl4030 watchdog.
*/
void hw_watchdog_reset(void)
{
u8 timeout = 0;
/* do not reset watchdog too often - max every 4s */
if (get_timer(twl_wd_time) < 4 * CONFIG_SYS_HZ)
return;
/* localy lock twl4030 i2c bus */
if (test_and_set_bit(0, &twl_i2c_lock))
return;
/* read actual watchdog timeout */
twl4030_i2c_read_u8(TWL4030_CHIP_PM_RECEIVER,
TWL4030_PM_RECEIVER_WATCHDOG_CFG, &timeout);
/* timeout 0 means watchdog is disabled */
/* reset watchdog timeout to 31s (maximum) */
if (timeout != 0)
twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER,
TWL4030_PM_RECEIVER_WATCHDOG_CFG, 31);
/* store last watchdog reset time */
twl_wd_time = get_timer(0);
/* localy unlock twl4030 i2c bus */
test_and_clear_bit(0, &twl_i2c_lock);
}
/*
* TWL4030 keypad handler for cfb_console
*/
static const char keymap[] = {
/* normal */
'q', 'o', 'p', ',', '\b', 0, 'a', 's',
'w', 'd', 'f', 'g', 'h', 'j', 'k', 'l',
'e', '.', 0, '\r', 0, 'z', 'x', 'c',
'r', 'v', 'b', 'n', 'm', ' ', ' ', 0,
't', 0, 0, 0, 0, 0, 0, 0,
'y', 0, 0, 0, 0, 0, 0, 0,
'u', 0, 0, 0, 0, 0, 0, 0,
'i', 5, 6, 0, 0, 0, 0, 0,
/* fn */
'1', '9', '0', '=', '\b', 0, '*', '+',
'2', '#', '-', '_', '(', ')', '&', '!',
'3', '?', '^', '\r', 0, 156, '$', 238,
'4', '/', '\\', '"', '\'', '@', 0, '<',
'5', '|', '>', 0, 0, 0, 0, 0,
'6', 0, 0, 0, 0, 0, 0, 0,
'7', 0, 0, 0, 0, 0, 0, 0,
'8', 16, 17, 0, 0, 0, 0, 0,
};
static u8 keys[8];
static u8 old_keys[8] = {0, 0, 0, 0, 0, 0, 0, 0};
#define KEYBUF_SIZE 32
static u8 keybuf[KEYBUF_SIZE];
static u8 keybuf_head;
static u8 keybuf_tail;
/*
* Routine: rx51_kp_init
* Description: Initialize HW keyboard.
*/
int rx51_kp_init(void)
{
int ret = 0;
u8 ctrl;
ret = twl4030_i2c_read_u8(TWL4030_CHIP_KEYPAD,
TWL4030_KEYPAD_KEYP_CTRL_REG, &ctrl);
if (ret)
return ret;
/* turn on keyboard and use hardware scanning */
ctrl |= TWL4030_KEYPAD_CTRL_KBD_ON;
ctrl |= TWL4030_KEYPAD_CTRL_SOFT_NRST;
ctrl |= TWL4030_KEYPAD_CTRL_SOFTMODEN;
ret |= twl4030_i2c_write_u8(TWL4030_CHIP_KEYPAD,
TWL4030_KEYPAD_KEYP_CTRL_REG, ctrl);
/* enable key event status */
ret |= twl4030_i2c_write_u8(TWL4030_CHIP_KEYPAD,
TWL4030_KEYPAD_KEYP_IMR1, 0xfe);
/* enable interrupt generation on rising and falling */
/* this is a workaround for qemu twl4030 emulation */
ret |= twl4030_i2c_write_u8(TWL4030_CHIP_KEYPAD,
TWL4030_KEYPAD_KEYP_EDR, 0x57);
/* enable ISR clear on read */
ret |= twl4030_i2c_write_u8(TWL4030_CHIP_KEYPAD,
TWL4030_KEYPAD_KEYP_SIH_CTRL, 0x05);
return 0;
}
static void rx51_kp_fill(u8 k, u8 mods)
{
/* check if some cursor key without meta fn key was pressed */
if (!(mods & 2) && (k == 18 || k == 31 || k == 33 || k == 34)) {
keybuf[keybuf_tail++] = '\e';
keybuf_tail %= KEYBUF_SIZE;
keybuf[keybuf_tail++] = '[';
keybuf_tail %= KEYBUF_SIZE;
if (k == 18) /* up */
keybuf[keybuf_tail++] = 'A';
else if (k == 31) /* left */
keybuf[keybuf_tail++] = 'D';
else if (k == 33) /* down */
keybuf[keybuf_tail++] = 'B';
else if (k == 34) /* right */
keybuf[keybuf_tail++] = 'C';
keybuf_tail %= KEYBUF_SIZE;
return;
}
if (mods & 2) { /* fn meta key was pressed */
k = keymap[k+64];
} else {
k = keymap[k];
if (mods & 1) { /* ctrl key was pressed */
if (k >= 'a' && k <= 'z')
k -= 'a' - 1;
}
if (mods & 4) { /* shift key was pressed */
if (k >= 'a' && k <= 'z')
k += 'A' - 'a';
else if (k == '.')
k = ':';
else if (k == ',')
k = ';';
}
}
keybuf[keybuf_tail++] = k;
keybuf_tail %= KEYBUF_SIZE;
}
/*
* Routine: rx51_kp_tstc
* Description: Test if key was pressed (from buffer).
*/
int rx51_kp_tstc(struct stdio_dev *sdev)
{
u8 c, r, dk, i;
u8 intr;
u8 mods;
/* localy lock twl4030 i2c bus */
if (test_and_set_bit(0, &twl_i2c_lock))
return 0;
/* twl4030 remembers up to 2 events */
for (i = 0; i < 2; i++) {
/* check interrupt register for events */
twl4030_i2c_read_u8(TWL4030_CHIP_KEYPAD,
TWL4030_KEYPAD_KEYP_ISR1 + (2 * i), &intr);
/* no event */
if (!(intr&1))
continue;
/* read the key state */
i2c_read(TWL4030_CHIP_KEYPAD,
TWL4030_KEYPAD_FULL_CODE_7_0, 1, keys, 8);
/* cut out modifier keys from the keystate */
mods = keys[4] >> 4;
keys[4] &= 0x0f;
for (c = 0; c < 8; c++) {
/* get newly pressed keys only */
dk = ((keys[c] ^ old_keys[c])&keys[c]);
old_keys[c] = keys[c];
/* fill the keybuf */
for (r = 0; r < 8; r++) {
if (dk&1)
rx51_kp_fill((c*8)+r, mods);
dk = dk >> 1;
}
}
}
/* localy unlock twl4030 i2c bus */
test_and_clear_bit(0, &twl_i2c_lock);
return (KEYBUF_SIZE + keybuf_tail - keybuf_head)%KEYBUF_SIZE;
}
/*
* Routine: rx51_kp_getc
* Description: Get last pressed key (from buffer).
*/
int rx51_kp_getc(struct stdio_dev *sdev)
{
keybuf_head %= KEYBUF_SIZE;
while (!rx51_kp_tstc(sdev))
WATCHDOG_RESET();
return keybuf[keybuf_head++];
}
/*
* Routine: board_mmc_init
* Description: Initialize mmc devices.
*/
int board_mmc_init(bd_t *bis)
{
omap_mmc_init(0, 0, 0, -1, -1);
omap_mmc_init(1, 0, 0, -1, -1);
return 0;
}
void board_mmc_power_init(void)
{
twl4030_power_mmc_init(0);
twl4030_power_mmc_init(1);
}
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