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Diffstat (limited to 'c/src/lib/libbsp/powerpc/gen83xx/spi/spi_init.c')
-rw-r--r--c/src/lib/libbsp/powerpc/gen83xx/spi/spi_init.c416
1 files changed, 0 insertions, 416 deletions
diff --git a/c/src/lib/libbsp/powerpc/gen83xx/spi/spi_init.c b/c/src/lib/libbsp/powerpc/gen83xx/spi/spi_init.c
deleted file mode 100644
index a2a2683d59..0000000000
--- a/c/src/lib/libbsp/powerpc/gen83xx/spi/spi_init.c
+++ /dev/null
@@ -1,416 +0,0 @@
-/*===============================================================*\
-| Project: RTEMS support for MPC83xx |
-+-----------------------------------------------------------------+
-| Copyright (c) 2007 |
-| Embedded Brains GmbH |
-| Obere Lagerstr. 30 |
-| D-82178 Puchheim |
-| Germany |
-| rtems@embedded-brains.de |
-+-----------------------------------------------------------------+
-| The license and distribution terms for this file may be |
-| found in the file LICENSE in this distribution or at |
-| |
-| http://www.rtems.org/license/LICENSE. |
-| |
-+-----------------------------------------------------------------+
-| this file contains the low level MPC83xx SPI driver parameters |
-| and board-specific functions |
-\*===============================================================*/
-
-
-#include <mpc83xx/mpc83xx_spidrv.h>
-#include <bsp/irq.h>
-#include <bsp.h>
-
-#if defined(MPC83XX_BOARD_MPC8313ERDB)
-
-#include <libchip/spi-sd-card.h>
-
-#elif defined(MPC83XX_BOARD_MPC8349EAMDS)
-
-#include <libchip/spi-flash-m25p40.h>
-
-#elif defined(MPC83XX_BOARD_HSC_CM01)
-
-#include <libchip/spi-fram-fm25l256.h>
-
-#endif
-
-/*=========================================================================*\
-| Board-specific adaptation functions |
-\*=========================================================================*/
-
-/*=========================================================================*\
-| Function: |
-\*-------------------------------------------------------------------------*/
-static rtems_status_code bsp_spi_sel_addr
-(
-/*-------------------------------------------------------------------------*\
-| Purpose: |
-| address a slave device on the bus |
-+---------------------------------------------------------------------------+
-| Input Parameters: |
-\*-------------------------------------------------------------------------*/
- rtems_libi2c_bus_t *bh, /* bus specifier structure */
- uint32_t addr, /* address to send on bus */
- int rw /* 0=write,1=read */
-)
-/*-------------------------------------------------------------------------*\
-| Return Value: |
-| o = ok or error code |
-\*=========================================================================*/
-{
-
-#if defined( MPC83XX_BOARD_MPC8313ERDB)
-
- /* Check address */
- if (addr > 0) {
- return RTEMS_INVALID_NUMBER;
- }
-
- /* SCS (active low) */
- mpc83xx.gpio [0].gpdat &= ~0x20000000;
-
-#elif defined( MPC83XX_BOARD_MPC8349EAMDS)
-
- /*
- * check device address for valid range
- */
- if (addr > 0) {
- return RTEMS_INVALID_NUMBER;
- }
- /*
- * select given device
- * GPIO1[0] is nSEL_SPI for M25P40
- * set it to be active/low
- */
- mpc83xx.gpio[0].gpdat &= ~(1 << (31- 0));
-
-#elif defined( MPC83XX_BOARD_HSC_CM01)
-
- /*
- * check device address for valid range
- */
- if (addr > 7) {
- return RTEMS_INVALID_NUMBER;
- }
- /*
- * select given device
- */
- /*
- * GPIO1[24] is SPI_A0
- * GPIO1[25] is SPI_A1
- * GPIO1[26] is SPI_A2
- * set pins to address
- */
- mpc83xx.gpio[0].gpdat =
- (mpc83xx.gpio[0].gpdat & ~(0x7 << (31-26)))
- | (addr << (31-26));
- /*
- * GPIO1[27] is high-active strobe
- */
- mpc83xx.gpio[0].gpdat |= (1 << (31- 27));
-
-#endif
-
- return RTEMS_SUCCESSFUL;
-}
-
-/*=========================================================================*\
-| Function: |
-\*-------------------------------------------------------------------------*/
-static rtems_status_code bsp_spi_send_start_dummy
-(
-/*-------------------------------------------------------------------------*\
-| Purpose: |
-| dummy function, SPI has no start condition |
-+---------------------------------------------------------------------------+
-| Input Parameters: |
-\*-------------------------------------------------------------------------*/
- rtems_libi2c_bus_t *bh /* bus specifier structure */
-)
-/*-------------------------------------------------------------------------*\
-| Return Value: |
-| o = ok or error code |
-\*=========================================================================*/
-{
-
-#if defined( MPC83XX_BOARD_MPC8313ERDB)
-
- /* SCS (inactive high) */
- mpc83xx.gpio [0].gpdat |= 0x20000000;
-
-#elif defined( MPC83XX_BOARD_MPC8349EAMDS)
-
- /*
- * GPIO1[0] is nSEL_SPI for M25P40
- * set it to inactive/high
- */
- mpc83xx.gpio[0].gpdat |= (1 << (31- 0));
-
-#elif defined( MPC83XX_BOARD_HSC_CM01)
-
- /*
- * GPIO1[27] is high-active strobe
- * set it to inactive/ low
- */
- mpc83xx.gpio[0].gpdat &= ~(0x1 << (31-27));
-
-#endif
-
- return 0;
-}
-
-/*=========================================================================*\
-| Function: |
-\*-------------------------------------------------------------------------*/
-static rtems_status_code bsp_spi_send_stop
-(
-/*-------------------------------------------------------------------------*\
-| Purpose: |
-| deselect SPI |
-+---------------------------------------------------------------------------+
-| Input Parameters: |
-\*-------------------------------------------------------------------------*/
- rtems_libi2c_bus_t *bh /* bus specifier structure */
-)
-/*-------------------------------------------------------------------------*\
-| Return Value: |
-| o = ok or error code |
-\*=========================================================================*/
-{
-#if defined(DEBUG)
- printk("bsp_spi_send_stop called... ");
-#endif
-
-#if defined( MPC83XX_BOARD_MPC8313ERDB)
-
- /* SCS (inactive high) */
- mpc83xx.gpio [0].gpdat |= 0x20000000;
-
-#elif defined( MPC83XX_BOARD_MPC8349EAMDS)
-
- /*
- * deselect given device
- * GPIO1[0] is nSEL_SPI for M25P40
- * set it to be inactive/high
- */
- mpc83xx.gpio[0].gpdat |= (1 << (31- 0));
-
-#elif defined( MPC83XX_BOARD_HSC_CM01)
-
- /*
- * deselect device
- * GPIO1[27] is high-active strobe
- */
- mpc83xx.gpio[0].gpdat &= ~(1 << (31- 27));
-
-#endif
-
-#if defined(DEBUG)
- printk("... exit OK\r\n");
-#endif
- return 0;
-}
-
-/*=========================================================================*\
-| list of handlers |
-\*=========================================================================*/
-
-rtems_libi2c_bus_ops_t bsp_spi_ops = {
- .init = mpc83xx_spi_init,
- .send_start = bsp_spi_send_start_dummy,
- .send_stop = bsp_spi_send_stop,
- .send_addr = bsp_spi_sel_addr,
- .read_bytes = mpc83xx_spi_read_bytes,
- .write_bytes = mpc83xx_spi_write_bytes,
- .ioctl = mpc83xx_spi_ioctl
-};
-
-static mpc83xx_spi_desc_t bsp_spi_bus_desc = {
- {/* public fields */
- .ops = &bsp_spi_ops,
- .size = sizeof(bsp_spi_bus_desc)
- },
- { /* our private fields */
- .reg_ptr =&mpc83xx.spi,
- .initialized = FALSE,
- .irq_number = BSP_IPIC_IRQ_SPI,
- .base_frq = 0 /* filled in during init */
- }
-};
-
-#ifdef MPC83XX_BOARD_MPC8313ERDB
-
-#include <libchip/spi-sd-card.h>
-
-#define SD_CARD_NUMBER 1
-
-size_t sd_card_driver_table_size = SD_CARD_NUMBER;
-
-sd_card_driver_entry sd_card_driver_table [SD_CARD_NUMBER] = {
- {
- .device_name = "/dev/sd-card-a",
- .bus = 0,
- .transfer_mode = SD_CARD_TRANSFER_MODE_DEFAULT,
- .command = SD_CARD_COMMAND_DEFAULT,
- /* .response = whatever, */
- .response_index = SD_CARD_COMMAND_SIZE,
- .n_ac_max = SD_CARD_N_AC_MAX_DEFAULT,
- .block_number = 0,
- .block_size = 0,
- .block_size_shift = 0,
- .busy = true,
- .verbose = true,
- .schedule_if_busy = false
- }
-};
-
-#endif /* MPC83XX_BOARD_MPC8313ERDB */
-
-
-/*=========================================================================*\
-| initialization |
-\*=========================================================================*/
-
-/*=========================================================================*\
-| Function: |
-\*-------------------------------------------------------------------------*/
-rtems_status_code bsp_register_spi
-(
-/*-------------------------------------------------------------------------*\
-| Purpose: |
-| register SPI bus and devices |
-+---------------------------------------------------------------------------+
-| Input Parameters: |
-\*-------------------------------------------------------------------------*/
- void /* <none> */
-)
-/*-------------------------------------------------------------------------*\
-| Return Value: |
-| 0 or error code |
-\*=========================================================================*/
-{
- #if defined(MPC83XX_BOARD_MPC8313ERDB)
- rtems_status_code sc = RTEMS_SUCCESSFUL;
- #endif
- unsigned spi_busno;
- int ret_code;
-
- /*
- * init I2C library (if not already done)
- */
- rtems_libi2c_initialize ();
-
- /*
- * init port pins used to address/select SPI devices
- */
-
-#if defined(MPC83XX_BOARD_MPC8313ERDB)
-
- /*
- * Configured as master (direct connection to SD card)
- *
- * GPIO[28] : SOUT
- * GPIO[29] : SIN
- * GPIO[30] : SCLK
- * GPIO[02] : SCS (inactive high), GPIO[02] is normally connected to U43 at
- * pin 15 of MC74LCX244DT.
- */
-
- /* Function */
- mpc83xx.syscon.sicrl = (mpc83xx.syscon.sicrl & ~0x03fc0000) | 0x30000000;
-
- /* Direction */
- mpc83xx.gpio [0].gpdir = (mpc83xx.gpio [0].gpdir & ~0x0000000f) | 0x2000000b;
-
- /* Data */
- mpc83xx.gpio [0].gpdat |= 0x20000000;
-
- /* Open Drain */
- /* mpc83xx.gpio [0].gpdr |= 0x0000000f; */
-
-#elif defined(MPC83XX_BOARD_MPC8349EAMDS)
-
- /*
- * GPIO1[0] is nSEL_SPI for M25P40
- * set it to be output, high
- */
- mpc83xx.gpio[0].gpdat |= (1 << (31- 0));
- mpc83xx.gpio[0].gpdir |= (1 << (31- 0));
- mpc83xx.gpio[0].gpdr &= ~(1 << (31- 0));
-
-#elif defined(MPC83XX_BOARD_HSC_CM01)
-
- /*
- * GPIO1[24] is SPI_A0
- * GPIO1[25] is SPI_A1
- * GPIO1[26] is SPI_A2
- * GPIO1[27] is high-active strobe
- * set pins to be output, low
- */
- mpc83xx.gpio[0].gpdat &= ~(0xf << (31-27));
- mpc83xx.gpio[0].gpdir |= (0xf << (31-27));
- mpc83xx.gpio[0].gpdr &= ~(0xf << (31-27));
-
-#else
-
- /*
- * There is no SPI configuration information for this variant.
- */
- (void) spi_busno; /* avoid set but not used warning */
-#endif
-
- /*
- * update base frequency in spi descriptor
- */
- bsp_spi_bus_desc.softc.base_frq = BSP_bus_frequency;
-
- /*
- * register SPI bus
- */
- ret_code = rtems_libi2c_register_bus("/dev/spi",
- &(bsp_spi_bus_desc.bus_desc));
- if (ret_code < 0) {
- return -ret_code;
- }
- spi_busno = (unsigned) ret_code;
-
-#if defined(MPC83XX_BOARD_MPC8313ERDB)
-
- /* Register SD Card driver */
- sd_card_driver_table [0].bus = spi_busno;
- sc = sd_card_register();
- if (sc != RTEMS_SUCCESSFUL) {
- return sc;
- }
-
-#elif defined(MPC83XX_BOARD_MPC8349EAMDS)
-
- /*
- * register M25P40 Flash
- */
- ret_code = rtems_libi2c_register_drv(RTEMS_BSP_SPI_FLASH_DEVICE_NAME,
- spi_flash_m25p40_rw_driver_descriptor,
- spi_busno,0x00);
-#elif defined(MPC83XX_BOARD_HSC_CM01)
-
- /*
- * register FM25L256 FRAM
- */
- ret_code = rtems_libi2c_register_drv(RTEMS_BSP_SPI_FRAM_DEVICE_NAME,
- spi_fram_fm25l256_rw_driver_descriptor,
- spi_busno,0x02);
-
-#endif
-
- if (ret_code < 0) {
- return -ret_code;
- }
-
- /*
- * FIXME: further drivers, when available
- */
- return 0;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-09 19:55:50 +0000