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device: sam9x60: add flexcom spi support #186

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76467f2
Makefile: Prepare 4.0.11-rc2
gehariprasath May 14, 2025
f18f0a9
device: sam9x60: add flexcom spi support
HiFiPhile Jun 4, 2025
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2 changes: 1 addition & 1 deletion Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -54,7 +54,7 @@ else
BUILD_DATE := $(shell $(DATE) "$(DATE_FMT)")
endif
endif
export VERSION := v4.0.11-rc1
export VERSION := v4.0.11-rc2
REVISION :=
ifdef NIX_SHELL
SCMINFO := $(shell (host-utilities/setlocalversion))
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6 changes: 6 additions & 0 deletions device/sam9x60/Config.in.device
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Expand Up @@ -14,6 +14,8 @@ config SAM9X60
select CPU_HAS_WDT2
select CPU_HAS_SCLK_BYPASS
select CPU_HAS_AES
select CPU_HAS_SPI
select CPU_HAS_SPI_IOSET
select CPU_HAS_FLEXCOM0
select CPU_HAS_FLEXCOM1
select CPU_HAS_FLEXCOM2
Expand All @@ -33,5 +35,9 @@ config SAM9X60
select ALLOW_CRYSTAL_24_000MHZ
select SUPPORT_BUS_SPEED_200MHZ
select CPU_HAS_XDMAC
select ALLOW_BOOT_FROM_DATAFLASH_CS0
select ALLOW_BOOT_FROM_DATAFLASH_CS1
select ALLOW_BOOT_FROM_DATAFLASH_CS2
select ALLOW_BOOT_FROM_DATAFLASH_CS3
bool "SAM9X60"

66 changes: 64 additions & 2 deletions device/sam9x60/sam9x60.c
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Expand Up @@ -41,7 +41,7 @@ __attribute__((weak)) void wilc_pwrseq();

#define FLEXCOM_USART_INDEX (CONFIG_CONSOLE_INDEX - 1)

#if defined(CONFIG_TWI) || CONFIG_CONSOLE_INDEX != 0
#if defined(CONFIG_TWI) || CONFIG_CONSOLE_INDEX != 0 || defined(CONFIG_SPI)
static struct at91_flexcom flexcoms[] = {
{AT91C_ID_FLEXCOM0, FLEXCOM_TWI, AT91C_BASE_FLEXCOM0},
{AT91C_ID_FLEXCOM1, FLEXCOM_TWI, AT91C_BASE_FLEXCOM1},
Expand Down Expand Up @@ -279,6 +279,68 @@ void twi_init()
}
#endif

#if defined CONFIG_SPI
void at91_spi0_hw_init()
{
const struct pio_desc flx_pins[][5] = {
{ // FLEXCOM0
{"FLX_IO0", AT91C_PIN_PA(0), 0, PIO_DEFAULT, PIO_PERIPH_A},
{"FLX_IO1", AT91C_PIN_PA(1), 0, PIO_DEFAULT, PIO_PERIPH_A},
{"FLX_IO2", AT91C_PIN_PA(4), 0, PIO_DEFAULT, PIO_PERIPH_A},
{"FLX_IO3", CONFIG_SYS_SPI_PCS, 1, PIO_DEFAULT, PIO_OUTPUT},
{(char *)0, 0, 0, PIO_DEFAULT, PIO_PERIPH_A},
},
{ // FLEXCOM1
{"FLX_IO0", AT91C_PIN_PA(5), 0, PIO_DEFAULT, PIO_PERIPH_A},
{"FLX_IO1", AT91C_PIN_PA(6), 0, PIO_DEFAULT, PIO_PERIPH_A},
{"FLX_IO2", AT91C_PIN_PC(29), 0, PIO_DEFAULT, PIO_PERIPH_C},
{"FLX_IO3", CONFIG_SYS_SPI_PCS, 1, PIO_DEFAULT, PIO_OUTPUT},
{(char *)0, 0, 0, PIO_DEFAULT, PIO_PERIPH_A},
},
{ // FLEXCOM2
{"FLX_IO0", AT91C_PIN_PA(7), 0, PIO_DEFAULT, PIO_PERIPH_A},
{"FLX_IO1", AT91C_PIN_PA(8), 0, PIO_DEFAULT, PIO_PERIPH_A},
{"FLX_IO2", AT91C_PIN_PB(2), 0, PIO_DEFAULT, PIO_PERIPH_B},
{"FLX_IO3", CONFIG_SYS_SPI_PCS, 1, PIO_DEFAULT, PIO_OUTPUT},
{(char *)0, 0, 0, PIO_DEFAULT, PIO_PERIPH_A},
},
{ // FLEXCOM3
{"FLX_IO0", AT91C_PIN_PC(22), 0, PIO_DEFAULT, PIO_PERIPH_B},
{"FLX_IO1", AT91C_PIN_PC(23), 0, PIO_DEFAULT, PIO_PERIPH_B},
{"FLX_IO2", AT91C_PIN_PC(26), 0, PIO_DEFAULT, PIO_PERIPH_B},
{"FLX_IO3", CONFIG_SYS_SPI_PCS, 1, PIO_DEFAULT, PIO_OUTPUT},
{(char *)0, 0, 0, PIO_DEFAULT, PIO_PERIPH_A},
},
{ // FLEXCOM4
{"FLX_IO0", AT91C_PIN_PA(12), 0, PIO_DEFAULT, PIO_PERIPH_A},
{"FLX_IO1", AT91C_PIN_PA(11), 0, PIO_DEFAULT, PIO_PERIPH_A},
{"FLX_IO2", AT91C_PIN_PA(13), 0, PIO_DEFAULT, PIO_PERIPH_A},
{"FLX_IO3", CONFIG_SYS_SPI_PCS, 1, PIO_DEFAULT, PIO_OUTPUT},
{(char *)0, 0, 0, PIO_DEFAULT, PIO_PERIPH_A},
},
{ // FLEXCOM5
{"FLX_IO0", AT91C_PIN_PA(22), 0, PIO_DEFAULT, PIO_PERIPH_B},
{"FLX_IO1", AT91C_PIN_PA(21), 0, PIO_DEFAULT, PIO_PERIPH_B},
{"FLX_IO2", AT91C_PIN_PA(23), 0, PIO_DEFAULT, PIO_PERIPH_B},
{"FLX_IO3", CONFIG_SYS_SPI_PCS, 1, PIO_DEFAULT, PIO_OUTPUT},
{(char *)0, 0, 0, PIO_DEFAULT, PIO_PERIPH_A},
}
};

if (CONFIG_CONSOLE_INDEX == CONFIG_SPI_BUS + 1) {
dbg_very_loud("\nFLEXCOM %d is used in UART mode, config to SPI mode ignored!\n\n", CONFIG_SPI_BUS);
return;
}

pio_configure(flx_pins[CONFIG_SPI_BUS]);

pmc_enable_periph_clock(flexcoms[CONFIG_SPI_BUS].id, PMC_PERIPH_CLK_DIVIDER_NA);

flexcoms[CONFIG_SPI_BUS].mode = FLEXCOM_SPI;
flexcom_init(CONFIG_SPI_BUS);
}
#endif

void hw_init(void)
{
unsigned int reg;
Expand All @@ -302,7 +364,7 @@ void hw_init(void)
pmc_mck_cfg_set(0, BOARD_PRESCALER_PLLA,
AT91C_PMC_PRES | AT91C_PMC_MDIV | AT91C_PMC_CSS);

#if defined(CONFIG_TWI) || CONFIG_CONSOLE_INDEX != 0
#if defined(CONFIG_TWI) || CONFIG_CONSOLE_INDEX != 0 || defined(CONFIG_SPI)
flexcoms_init(flexcoms);
#endif

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72 changes: 68 additions & 4 deletions device/sam9x60/sam9x60_board.h
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Expand Up @@ -33,10 +33,74 @@
#define CONFIG_SYS_SPI_CLOCK AT91C_SPI_CLK
#define CONFIG_SYS_SPI_MODE SPI_MODE0

#if defined(CONFIG_SPI_BUS0)
#define CONFIG_SYS_BASE_SPI AT91C_BASE_SPI0
#elif defined(CONFIG_SPI_BUS1)
#define CONFIG_SYS_BASE_SPI AT91C_BASE_SPI1
#if defined(CONFIG_SPI)
#include "flexcom.h"
#define CONFIG_SYS_BASE_SPI flexcom_get_regmap(CONFIG_SPI_BUS)
#if CONFIG_SPI_BUS == 0
#if defined(CONFIG_SPI_BOOT_CS0)
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PA(3)
#elif defined(CONFIG_SPI_BOOT_CS1)
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PA(2)
#else
#error "Invalid SPI chip select configuration!"
#endif
#elif CONFIG_SPI_BUS == 1
#if defined(CONFIG_SPI_BOOT_CS0)
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PC(28)
#elif defined(CONFIG_SPI_BOOT_CS1)
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PC(27)
#else
#error "Invalid SPI chip select configuration!"
#endif
#elif CONFIG_SPI_BUS == 2
#if defined(CONFIG_SPI_BOOT_CS0)
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PB(1)
#elif defined(CONFIG_SPI_BOOT_CS1)
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PB(0)
#else
#error "Invalid SPI chip select configuration!"
#endif
#elif CONFIG_SPI_BUS == 3
#if defined(CONFIG_SPI_BOOT_CS0)
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PC(25)
#elif defined(CONFIG_SPI_BOOT_CS1)
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PC(24)
#else
#error "Invalid SPI chip select configuration!"
#endif
#elif CONFIG_SPI_BUS == 4
#if defined(CONFIG_SPI_BOOT_CS0)
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PA(14)
#elif defined(CONFIG_SPI_BOOT_CS1) && CONFIG_SPI_IOSET == 1
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PA(7)
#elif defined(CONFIG_SPI_BOOT_CS1) && CONFIG_SPI_IOSET == 2
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PA(0)
#elif defined(CONFIG_SPI_BOOT_CS2) && CONFIG_SPI_IOSET == 1
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PA(1)
#elif defined(CONFIG_SPI_BOOT_CS2) && CONFIG_SPI_IOSET == 2
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PA(8)
#elif defined(CONFIG_SPI_BOOT_CS3)
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PB(3)
#else
#error "Invalid SPI chip select configuration!"
#endif
#elif CONFIG_SPI_BUS == 5
#if defined(CONFIG_SPI_BOOT_CS0)
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PA(8)
#elif defined(CONFIG_SPI_BOOT_CS1) && CONFIG_SPI_IOSET == 1
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PA(0)
#elif defined(CONFIG_SPI_BOOT_CS1) && CONFIG_SPI_IOSET == 2
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PA(7)
#elif defined(CONFIG_SPI_BOOT_CS2)
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PA(31)
#elif defined(CONFIG_SPI_BOOT_CS3)
#define CONFIG_SYS_SPI_PCS AT91C_PIN_PA(30)
#else
#error "Invalid SPI chip select configuration!"
#endif
#else
#error "Invalid SPI bus configuration!"
#endif
#endif

#if defined(CONFIG_QSPI)
Expand Down