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e08b5189906335b27c3d14d5b6ddda5b883fb108
xburst-tools/qiboot/src/cpu/s3c2442/gta02.c
Andy Green e08b518990 qi-gta02-correct-filter-polarity.patch 
Filter is enabled by b4 being 0 in each case, not 1

Signed-off-by: Andy Green <andy@openmoko.com>
2008-12-18 13:49:44 +00:00

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/*
* (C) Copyright 2007 OpenMoko, Inc.
* Author: Andy Green <andy@openmoko.com>
*
* (port_init_gta02 came out of Openmoko U-Boot)
*
* Configuation settings for the OPENMOKO Neo GTA02 Linux GSM phone
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*/
#include <qi.h>
#include <neo_gta02.h>
#include <serial-s3c24xx.h>
#include <ports-s3c24xx.h>
#include <i2c-bitbang-s3c24xx.h>
#include <pcf50633.h>
#include <glamo-init.h>
#define GTA02_DEBUG_UART 2
#define PCF50633_I2C_ADS 0x73
#define BOOST_TO_400MHZ 1
static int battery_condition_reasonable = 0;
const struct pcf50633_init pcf50633_init[] = {
{ PCF50633_REG_OOCWAKE, 0xd3 }, /* wake from ONKEY,EXTON!,RTC,USB,ADP */
{ PCF50633_REG_OOCTIM1, 0xaa }, /* debounce 14ms everything */
{ PCF50633_REG_OOCTIM2, 0x4a },
{ PCF50633_REG_OOCMODE, 0x55 },
{ PCF50633_REG_OOCCTL, 0x47 },
{ PCF50633_REG_SVMCTL, 0x08 }, /* 3.10V SYS vth, 62ms filter */
{ PCF50633_REG_BVMCTL, 0x02 }, /* 2.80V BAT vth, 62ms filter */
{ PCF50633_REG_AUTOENA, 0x01 }, /* always on */
{ PCF50633_REG_DOWN1OUT, 0x1b }, /* 1.3V (0x1b * .025V + 0.625V) */
{ PCF50633_REG_DOWN1ENA, 0x02 }, /* enabled if GPIO1 = HIGH */
{ PCF50633_REG_HCLDOOUT, 21 }, /* 3.0V (21 * 0.1V + 0.9V) */
{ PCF50633_REG_HCLDOENA, 0x01 }, /* ON by default*/
{ PCF50633_REG_DOWN1OUT, 0x1b }, /* 1.3V (0x1b * .025V + 0.625V) */
{ PCF50633_REG_DOWN1ENA, 0x02 }, /* enabled if GPIO1 = HIGH */
{ PCF50633_REG_INT1M, 0x00 },
{ PCF50633_REG_INT2M, 0x00 },
{ PCF50633_REG_INT3M, 0x00 },
{ PCF50633_REG_INT4M, 0x00 },
{ PCF50633_REG_INT5M, 0x00 },
{ PCF50633_REG_MBCC2, 0x28 }, /* Vbatconid=2.7V, Vmax=4.20V */
{ PCF50633_REG_MBCC3, 0x19 }, /* 25/255 == 98mA pre-charge */
{ PCF50633_REG_MBCC4, 0xff }, /* 255/255 == 1A adapter fast */
{ PCF50633_REG_MBCC5, 0xff }, /* 255/255 == 1A usb fast */
{ PCF50633_REG_MBCC6, 0x00 }, /* cutoff current 1/32 * Ichg */
{ PCF50633_REG_MBCC7, 0x00 }, /* 1.6A max bat curr, USB 100mA */
{ PCF50633_REG_MBCC8, 0x00 },
{ PCF50633_REG_MBCC1, 0xff }, /* chgena */
{ PCF50633_REG_LDO1ENA, 2 }, /* accel enabled if GPIO1 = H */
{ PCF50633_REG_LDO2ENA, 2 }, /* codec enabled if GPIO1 = H */
{ PCF50633_REG_LDO4ENA, 0 }, /* bt off */
{ PCF50633_REG_LDO5ENA, 0 }, /* gps off */
{ PCF50633_REG_LDO6ENA, 2 }, /* lcm enabled if GPIO1 = H */
{ PCF50633_REG_BBCCTL, 0x19 }, /* 3V, 200uA, on */
{ PCF50633_REG_OOCSHDWN, 0x04 }, /* defeat 8s death from lowsys on A5 */
};
static const struct board_variant board_variants[] = {
[0] = {
.name = "A5 PCB",
.machine_revision = 0x350,
},
[1] = {
.name = "A6 PCB",
.machine_revision = 0x360,
}
};
void port_init_gta02(void)
{
unsigned int * MPLLCON = (unsigned int *)0x4c000004;
unsigned int * UPLLCON = (unsigned int *)0x4c000008;
unsigned int * CLKDIVN = (unsigned int *)0x4c000014;
int n;
//CAUTION:Follow the configuration order for setting the ports.
// 1) setting value(GPnDAT)
// 2) setting control register (GPnCON)
// 3) configure pull-up resistor(GPnUP)
/* 32bit data bus configuration */
/*
* === PORT A GROUP
* Ports : GPA22 GPA21 GPA20 GPA19 GPA18 GPA17 GPA16 GPA15 GPA14 GPA13 GPA12
* Signal : nFCE nRSTOUT nFRE nFWE ALE CLE nGCS5 nGCS4 nGCS3 nGCS2 nGCS1
* Binary : 1 1 1 , 1 1 1 1 , 1 1 1 1
* Ports : GPA11 GPA10 GPA9 GPA8 GPA7 GPA6 GPA5 GPA4 GPA3 GPA2 GPA1 GPA0
* Signal : ADDR26 ADDR25 ADDR24 ADDR23 ADDR22 ADDR21 ADDR20 ADDR19 ADDR18 ADDR17 ADDR16 ADDR0
* Binary : 1 1 1 1 , 1 1 1 1 , 1 1 1 1
*/
rGPACON = 0x007E5FFF;
rGPADAT = 0x00000000;
/*
* ===* PORT B GROUP
* Ports : GPB10 GPB9 GPB8 GPB7 GPB6 GPB5 GPB4 GPB3 GPB2 GPB1 GPB0
* Signal : nXDREQ0 nXDACK0 nXDREQ1 nXDACK1 nSS_KBD nDIS_OFF L3CLOCK L3DATA L3MODE nIrDATXDEN Keyboard
* Setting: INPUT OUTPUT INPUT OUTPUT INPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT
* Binary : 00 , 01 00 , 01 00 , 01 01 , 01 01 , 01 01
*/
rGPBCON = 0x00155555;
rGPBUP = 0x000007FF;
rGPBDAT = 0x00000000;
/*
* === PORT C GROUP
* Ports : GPC15 GPC14 GPC13 GPC12 GPC11 GPC10 GPC9 GPC8 GPC7 GPC6 GPC5 GPC4 GPC3 GPC2 GPC1 GPC0
* Signal : VD7 VD6 VD5 VD4 VD3 VD2 VD1 VD0 LCDVF2 LCDVF1 LCDVF0 VM VFRAME VLINE VCLK LEND
* Binary : 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10
*/
rGPCCON = 0x55555155;
rGPCUP = 0x0000FFFF & ~(1 << 5);
rGPCDAT = (1 << 13) | (1 << 15); /* index detect -> hi */
/*
* === PORT D GROUP
* Ports : GPD15 GPD14 GPD13 GPD12 GPD11 GPD10 GPD9 GPD8 GPD7 GPD6 GPD5 GPD4 GPD3 GPD2 GPD1 GPD0
* Signal : VD23 VD22 VD21 VD20 VD19 VD18 VD17 VD16 VD15 VD14 VD13 VD12 VD11 VD10 VD9 VD8
* Binary : 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 ,10 10
*/
rGPDCON = 0x55555555;
rGPDUP = 0x0000FFFF;
rGPDDAT = (1 << 0) | (1 << 3) | (1 << 4); /* index detect -> hi */
/*
* === PORT E GROUP
* Ports : GPE15 GPE14 GPE13 GPE12 GPE11 GPE10 GPE9 GPE8 GPE7 GPE6 GPE5 GPE4
* Signal : IICSDA IICSCL SPICLK SPIMOSI SPIMISO SDDATA3 SDDATA2 SDDATA1 SDDATA0 SDCMD SDCLK I2SSDO
* Binary : 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 ,
* -------------------------------------------------------------------------------------------------------
* Ports : GPE3 GPE2 GPE1 GPE0
* Signal : I2SSDI CDCLK I2SSCLK I2SLRCK
* Binary : 10 10 , 10 10
*/
rGPECON = 0xAAAAAAAA;
rGPEUP = 0x0000FFFF & ~(1 << 11);
rGPEDAT = 0x00000000;
/*
* === PORT F GROUP
* Ports : GPF7 GPF6 GPF5 GPF4 GPF3 GPF2 GPF1 GPF0
* Signal : nLED_8 nLED_4 nLED_2 nLED_1 nIRQ_PCMCIA EINT2 KBDINT EINT0
* Setting: Output Output Output Output EINT3 EINT2 EINT1 EINT0
* Binary : 01 01 , 01 01 , 10 10 , 10 10
*/
/* pulldown on GPF03: TP-4705+debug - debug conn will float */
rGPFCON = 0x00008AAA;
rGPFUP = 0x000000FF & ~(1 << 3);
rGPFDAT = 0x00000000;
/*
* === PORT G GROUP
* Ports : GPG15 GPG14 GPG13 GPG12 GPG11 GPG10 GPG9 GPG8 GPG7 GPG6
* Signal : nYPON YMON nXPON XMON EINT19 DMAMODE1 DMAMODE0 DMASTART KBDSPICLK KBDSPIMOSI
* Setting: nYPON YMON nXPON XMON EINT19 Output Output Output SPICLK1 SPIMOSI1
* Binary : 11 11 , 11 11 , 10 01 , 01 01 , 11 11
* -----------------------------------------------------------------------------------------
* Ports : GPG5 GPG4 GPG3 GPG2 GPG1 GPG0
* Signal : KBDSPIMISO LCD_PWREN EINT11 nSS_SPI IRQ_LAN IRQ_PCMCIA
* Setting: SPIMISO1 LCD_PWRDN EINT11 nSS0 EINT9 EINT8
* Binary : 11 11 , 10 11 , 10 10
*/
rGPGCON = 0x01AAFE79;
rGPGUP = 0x0000FFFF;
rGPGDAT = 0x00000000;
/*
* === PORT H GROUP
* Ports : GPH10 GPH9 GPH8 GPH7 GPH6 GPH5 GPH4 GPH3 GPH2 GPH1 GPH0
* Signal : CLKOUT1 CLKOUT0 UCLK RXD2 TXD2 RXD1 TXD1 RXD0 TXD0 nRTS0 nCTS0
* Binary : 10 , 10 10 , 11 11 , 10 10 , 10 10 , 10 10
*/
/* pulldown on GPH08: UEXTCLK, just floats!
* pulldown GPH0 -- nCTS0 / RTS_MODEM -- floats when GSM off
* pulldown GPH3 -- RXD[0] / TX_MODEM -- floats when GSM off
*/
rGPHCON = 0x001AAAAA;
rGPHUP = 0x000007FF & ~(1 << 8) & ~(1 << 0) & ~(1 << 3);
rGPHDAT = 0x00000000;
/* pulldown on GPJ00: input, just floats! */
/* pulldown on GPJ07: WLAN module WLAN_GPIO0, no ext pull */
rGPJCON = 0x1551544;
rGPJUP = 0x1ffff & ~(1 << 0) & ~(1 << 7);
rGPJDAT = 0x00000100;
rGPJDAT |= (1 << 4) | (1 << 6);
/* Set GPJ4 to high (nGSM_EN) */
/* Set GPJ6 to high (nDL_GSM) */
rGPJDAT &= ~(1 << 5); /* Set GPJ5 to low 3D RST */
/* leaving Glamo forced to Reset# active here killed
* U-Boot when you touched the memory region
*/
rGPJDAT |= (1 << 5); /* Set GPJ5 to high 3D RST */
/*
* We have to talk to the PMU a little bit
*/
for (n = 0; n < ARRAY_SIZE(pcf50633_init); n++)
i2c_write_sync(&bb_s3c24xx, PCF50633_I2C_ADS,
pcf50633_init[n].index, pcf50633_init[n].value);
/* what does the battery monitoring unit say about the battery? */
battery_condition_reasonable = !(i2c_read_sync(&bb_s3c24xx,
PCF50633_I2C_ADS, PCF50633_REG_BVMCTL) & 1);
if (battery_condition_reasonable) {
/* change CPU clocking to 400MHz 1:4:8 */
/* clock divide 1:4:8 - do it first */
*CLKDIVN = 5;
/* configure UPLL */
*UPLLCON = ((88 << 12) + (4 << 4) + 2);
/* Magic delay: Page 7-19, seven nops between UPLL and MPLL */
asm __volatile__ (
"nop\n"\
"nop\n"\
"nop\n"\
"nop\n"\
"nop\n"\
"nop\n"\
"nop\n"\
);
/* configure MPLL */
*MPLLCON = ((42 << 12) + (1 << 4) + 0);
/* get debug UART working at 115kbps */
serial_init_115200_s3c24xx(GTA02_DEBUG_UART, 50 /* 50MHz */);
} else {
serial_init_115200_s3c24xx(GTA02_DEBUG_UART, 33 /* 33MHz */);
}
/* we're going to use Glamo for SD Card access, so we need to init the
* evil beast
*/
glamo_core_init();
}
/**
* returns PCB revision information in b9,b8 and b2,b1,b0
* Pre-GTA02 A6 returns 0x000
* GTA02 A6 returns 0x001
*/
int gta02_get_pcb_revision(void)
{
int n;
u32 u;
/* make C13 and C15 pulled-down inputs */
rGPCCON &= ~0xcc000000;
rGPCUP &= ~((1 << 13) | (1 << 15));
/* D0, D3 and D4 pulled-down inputs */
rGPDCON &= ~0x000003c3;
rGPDUP &= ~((1 << 0) | (1 << 3) | (1 << 4));
/* delay after changing pulldowns */
u = rGPCDAT;
u = rGPDDAT;
/* read the version info */
u = rGPCDAT;
n = (u >> (13 - 0)) & 0x001;
n |= (u >> (15 - 1)) & 0x002;
u = rGPDDAT;
n |= (u << (0 + 2)) & 0x004;
n |= (u << (8 - 3)) & 0x100;
n |= (u << (9 - 4)) & 0x200;
/*
* when not being interrogated, all of the revision GPIO
* are set to output HIGH without pulldown so no current flows
* if they are NC or pulled up.
*/
/* make C13 and C15 high ouputs with no pulldowns */
rGPCCON |= 0x44000000;
rGPCUP |= (1 << 13) | (1 << 15);
rGPCDAT |= (1 << 13) | (1 << 15);
/* D0, D3 and D4 high ouputs with no pulldowns */
rGPDCON |= 0x00000141;
rGPDUP |= (1 << 0) | (1 << 3) | (1 << 4);
rGPDDAT |= (1 << 0) | (1 << 3) | (1 << 4);
n &= 1;
return n;
}
int sd_card_init_gta02(void)
{
extern int mmc_init(int verbose);
return mmc_init(1);
}
int sd_card_block_read_gta02(unsigned char * buf, unsigned long start512,
int blocks512)
{
unsigned long mmc_bread(int dev_num, unsigned long blknr, unsigned long blkcnt,
void *dst);
return mmc_bread(0, start512, blocks512, buf);
}
/* return nonzero if we believe we run on GTA02 */
int is_this_board_gta02(void)
{
/* look for GTA02 NOR */
*(volatile unsigned short *)(0x18000000) = 0x98;
return !!(*(volatile unsigned short *)(0x18000000) == 0x0020);
}
const struct board_variant const * get_board_variant_gta02(void)
{
return &board_variants[gta02_get_pcb_revision() & 1];
}
static __attribute__ (( section (".steppingstone") )) void putc_gta02(char c)
{
serial_putc_s3c24xx(GTA02_DEBUG_UART, c);
}
static void close_gta02(void)
{
/* explicitly clear any pending 8s timeout */
i2c_write_sync(&bb_s3c24xx, PCF50633_I2C_ADS, PCF50633_REG_OOCSHDWN, 0x04);
/* clear any pending timeouts by reading interrupts */
i2c_read_sync(&bb_s3c24xx, PCF50633_I2C_ADS, PCF50633_REG_INT1);
i2c_read_sync(&bb_s3c24xx, PCF50633_I2C_ADS, PCF50633_REG_INT2);
i2c_read_sync(&bb_s3c24xx, PCF50633_I2C_ADS, PCF50633_REG_INT3);
i2c_read_sync(&bb_s3c24xx, PCF50633_I2C_ADS, PCF50633_REG_INT4);
i2c_read_sync(&bb_s3c24xx, PCF50633_I2C_ADS, PCF50633_REG_INT5);
/* set I2C GPIO back to peripheral unit */
(bb_s3c24xx.close)();
/* aux back to being EINT */
rGPFCON = 0x0000AAAA;
}
static u8 get_ui_keys_gta02(void)
{
u8 keys;
u8 ret;
static u8 old_keys = 0; /* previous state for debounce */
static u8 old_ret = 0; /* previous debounced output for edge detect */
/* GPF6 is AUX on GTA02, map to UI_ACTION_ADD_DEBUG, down = 1 */
keys = !!(rGPFDAT & (1 << 6));
if (keys == old_keys)
ret = keys;
else
ret = old_keys;
/* edge action */
if ((ret & 1) && !(old_ret & 1))
ret |= UI_ACTION_SKIPKERNEL;
old_keys = keys;
old_ret = ret;
return ret;
}
static void set_ui_indication_gta02(enum ui_indication ui_indication)
{
switch (ui_indication) {
case UI_IND_UPDATE_ONLY:
break;
case UI_IND_MOUNT_PART:
case UI_IND_KERNEL_PULL_OK:
case UI_IND_INITRAMFS_PULL_OK:
if (battery_condition_reasonable)
rGPBDAT |= 4;
break;
case UI_IND_KERNEL_PULL_FAIL:
case UI_IND_SKIPPING:
case UI_IND_INITRAMFS_PULL_FAIL:
case UI_IND_MOUNT_FAIL:
rGPBDAT &= ~4;
if (battery_condition_reasonable) {
rGPBDAT |= 8;
udelay(2000000);
rGPBDAT &= ~8;
udelay(200000);
}
break;
case UI_IND_KERNEL_START:
case UI_IND_MEM_TEST:
case UI_IND_KERNEL_PULL:
case UI_IND_INITRAMFS_PULL:
rGPBDAT &= ~4;
break;
}
}
/*
* our API for bootloader on this machine
*/
const struct board_api board_api_gta02 = {
.name = "Freerunner / GTA02",
.linux_machine_id = 1304,
.linux_mem_start = 0x30000000,
.linux_mem_size = (128 * 1024 * 1024),
.linux_tag_placement = 0x30000000 + 0x100,
.get_board_variant = get_board_variant_gta02,
.is_this_board = is_this_board_gta02,
.port_init = port_init_gta02,
.putc = putc_gta02,
.close = close_gta02,
.get_ui_keys = get_ui_keys_gta02,
.set_ui_indication = set_ui_indication_gta02,
.commandline_board = "mtdparts=physmap-flash:-(nor);" \
"neo1973-nand:" \
"0x00040000(qi)," \
"0x00040000(cmdline)," \
"0x00800000(backupkernel)," \
"0x000a0000(extra)," \
"0x00040000(identity)," \
"0x0f6a0000(backuprootfs) " \
"loglevel=4 " \
"console=tty0 " \
"console=ttySAC2,115200 " \
"init=/sbin/init " \
"ro ",
.commandline_board_debug = "loglevel=8",
.noboot = "boot/noboot-GTA02",
.append = "boot/append-GTA02",
/* these are the ways we could boot GTA02 in the order to try */
.kernel_source = {
[0] = {
.name = "SD Card EXT2 P1 Kernel",
.block_init = sd_card_init_gta02,
.block_read = sd_card_block_read_gta02,
.partition_index = 1,
.filesystem = FS_EXT2,
.filepath = "boot/uImage-GTA02.bin",
.commandline_append = " root=/dev/mmcblk0p1 rootdelay=1 ",
},
[1] = {
.name = "SD Card EXT2 P2 Kernel",
.block_init = sd_card_init_gta02,
.block_read = sd_card_block_read_gta02,
.partition_index = 2,
.filesystem = FS_EXT2,
.filepath = "boot/uImage-GTA02.bin",
.commandline_append = " root=/dev/mmcblk0p2 rootdelay=1 ",
},
[2] = {
.name = "SD Card EXT2 P3 Kernel",
.block_init = sd_card_init_gta02,
.block_read = sd_card_block_read_gta02,
.partition_index = 3,
.filesystem = FS_EXT2,
.filepath = "boot/uImage-GTA02.bin",
.commandline_append = " root=/dev/mmcblk0p3 rootdelay=1 ",
},
[3] = {
.name = "NAND Kernel",
.block_read = nand_read_ll,
.offset_blocks512_if_no_partition = 0x80000 / 512,
.filesystem = FS_RAW,
.commandline_append = " rootfstype=jffs2 " \
"root=/dev/mtdblock6 ",
},
},
};
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