Implement hard SPI driver on MPC8349EMDS

[people/ms/u-boot.git] / board / freescale / mpc8349emds / mpc8349emds.c

diff --git a/board/freescale/mpc8349emds/mpc8349emds.c b/board/freescale/mpc8349emds/mpc8349emds.c
index 3d72eb7d894d7c723a9c89304e004103e97e13a7..3fb2a458eee33f73886807d9f00064d0a2b64874 100644 (file)
--- a/board/freescale/mpc8349emds/mpc8349emds.c
+++ b/board/freescale/mpc8349emds/mpc8349emds.c
@@ -27,6 +27,7 @@
 #include <mpc83xx.h>
 #include <asm/mpc8349_pci.h>
 #include <i2c.h>
+#include <spi.h>
 #include <spd.h>
 #include <miiphy.h>
 #if defined(CONFIG_SPD_EEPROM)
@@ -251,6 +252,34 @@ void sdram_init(void)
 }
 #endif
 
+/*
+ * The following are used to control the SPI chip selects for the SPI command.
+ */
+#ifdef CONFIG_HARD_SPI
+
+#define SPI_CS_MASK    0x80000000
+
+void spi_eeprom_chipsel(int cs)
+{
+       volatile gpio83xx_t *iopd = &((immap_t *)CFG_IMMR)->gpio[0];
+
+       if(cs)
+               iopd->dat &= ~SPI_CS_MASK;
+       else
+               iopd->dat |=  SPI_CS_MASK;
+}
+
+/*
+ * The SPI command uses this table of functions for controlling the SPI
+ * chip selects.
+ */
+spi_chipsel_type spi_chipsel[] = {
+       spi_eeprom_chipsel,
+};
+int spi_chipsel_cnt = sizeof(spi_chipsel) / sizeof(spi_chipsel[0]);
+
+#endif /* CONFIG_HARD_SPI */
+
 #if defined(CONFIG_OF_BOARD_SETUP)
 void ft_board_setup(void *blob, bd_t *bd)
 {