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Revert "ft2232_spi.c: Rename cs_bits to pinlvl"

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This reverts commit 180079632b15758ca0bbbe5782611bd4573e11d8.

The renaming only seemed to match the code because of earlier introduced
regressions (see following reverts). For proper support of the `gpiol`
feature, we'd likely need both a `cs_bits` and a `pinlvl` variable.

Change-Id: Ifa5b2259ccf49ddf729d01176bacd94a95c39925
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/55691
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
This commit is contained in:
Nico Huber 2021-06-20 14:35:10 +02:00
parent 821c334da2
commit 98bcd6d103
1 changed files with 14 additions and 14 deletions
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28
ft2232_spi.c
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@ -86,7 +86,7 @@ static const struct dev_entry devs_ft2232spi[] = {
#define BITMODE_BITBANG_NORMAL 1
#define BITMODE_BITBANG_SPI 2
/* The variables pinlvl and pindir store the values for the "set data bits low byte" MPSSE command that
/* The variables cs_bits and pindir store the values for the "set data bits low byte" MPSSE command that
* sets the initial state and the direction of the I/O pins. The pin offsets are as follows:
* TCK/SK is bit 0.
* TDI/DO is bit 1.
@ -105,7 +105,7 @@ static const struct dev_entry devs_ft2232spi[] = {
* dir: 0x0b CS=output, DI=input, DO=output, SK=output
*/
struct ft2232_data {
uint8_t pinlvl;
uint8_t cs_bits;
uint8_t pindir;
struct ftdi_context ftdic_context;
};
@ -226,7 +226,7 @@ static int ft2232_spi_send_multicommand(const struct flashctx *flash, struct spi
msg_pspew("Assert CS#\n");
buf[i++] = SET_BITS_LOW;
buf[i++] = ~ 0x08 & spi_data->pinlvl; /* assert CS (3rd) bit only */
buf[i++] = ~ 0x08 & spi_data->cs_bits; /* assert CS (3rd) bit only */
buf[i++] = spi_data->pindir;
/* WREN, OP(PROGRAM, ERASE), ADDR, DATA */
@ -248,7 +248,7 @@ static int ft2232_spi_send_multicommand(const struct flashctx *flash, struct spi
/* Add final de-assert CS# */
msg_pspew("De-assert CS#\n");
buf[i++] = SET_BITS_LOW;
buf[i++] = spi_data->pinlvl;
buf[i++] = spi_data->cs_bits;
buf[i++] = spi_data->pindir;
/* continue if there is no read-cmd and further cmds exist */
@ -316,7 +316,7 @@ static int ft2232_spi_init(void)
char *arg;
double mpsse_clk;
uint8_t pinlvl = 0x08;
uint8_t cs_bits = 0x08;
uint8_t pindir = 0x0b;
struct ftdi_context ftdic;
struct ft2232_data *spi_data;
@ -338,7 +338,7 @@ static int ft2232_spi_init(void)
/* JTAGkey(2) needs to enable its output via Bit4 / GPIOL0
* value: 0x18 OE=high, CS=high, DI=low, DO=low, SK=low
* dir: 0x1b OE=output, CS=output, DI=input, DO=output, SK=output */
pinlvl = 0x18;
cs_bits = 0x18;
pindir = 0x1b;
} else if (!strcasecmp(arg, "picotap")) {
ft2232_vid = GOEPEL_VID;
@ -356,7 +356,7 @@ static int ft2232_spi_init(void)
/* In its default configuration it is a jtagkey clone */
ft2232_type = FTDI_FT2232H_PID;
channel_count = 2;
pinlvl = 0x18;
cs_bits = 0x18;
pindir = 0x1b;
} else if (!strcasecmp(arg, "openmoko")) {
ft2232_vid = FIC_VID;
@ -369,7 +369,7 @@ static int ft2232_spi_init(void)
/* arm-usb-ocd(-h) has an output buffer that needs to be enabled by pulling ADBUS4 low.
* value: 0x08 #OE=low, CS=high, DI=low, DO=low, SK=low
* dir: 0x1b #OE=output, CS=output, DI=input, DO=output, SK=output */
pinlvl = 0x08;
cs_bits = 0x08;
pindir = 0x1b;
} else if (!strcasecmp(arg, "arm-usb-tiny")) {
ft2232_vid = OLIMEX_VID;
@ -380,7 +380,7 @@ static int ft2232_spi_init(void)
ft2232_type = OLIMEX_ARM_OCD_H_PID;
channel_count = 2;
/* See arm-usb-ocd */
pinlvl = 0x08;
cs_bits = 0x08;
pindir = 0x1b;
} else if (!strcasecmp(arg, "arm-usb-tiny-h")) {
ft2232_vid = OLIMEX_VID;
@ -473,7 +473,7 @@ static int ft2232_spi_init(void)
return -2;
} else {
unsigned int pin = temp + 4;
pinlvl |= 1 << pin;
cs_bits |= 1 << pin;
pindir |= 1 << pin;
}
}
@ -490,11 +490,11 @@ static int ft2232_spi_init(void)
unsigned int pin = i + 4;
switch (toupper(arg[i])) {
case 'H':
pinlvl |= 1 << pin;
cs_bits |= 1 << pin;
pindir |= 1 << pin;
break;
case 'L':
pinlvl &= ~(1 << pin);
cs_bits &= ~(1 << pin);
pindir |= 1 << pin;
break;
case 'Z':
@ -600,7 +600,7 @@ static int ft2232_spi_init(void)
msg_pdbg("Set data bits\n");
buf[0] = SET_BITS_LOW;
buf[1] = pinlvl;
buf[1] = cs_bits;
buf[2] = pindir;
if (send_buf(&ftdic, buf, 3)) {
ret = -8;
@ -612,7 +612,7 @@ static int ft2232_spi_init(void)
msg_perr("Unable to allocate space for SPI master data\n");
return SPI_GENERIC_ERROR;
}
spi_data->pinlvl = pinlvl;
spi_data->cs_bits = cs_bits;
spi_data->pindir = pindir;
spi_data->ftdic_context = ftdic;