p2020ds: add alternate boot bank support using the ngPIXIS FPGA

The Freescale P2020DS board uses a new type of PIXIS FPGA, called the ngPIXIS.
The ngPIXIS has one distinct new feature: the values of the on-board switches
can be selectively overridden with shadow registers.  This feature is used to
boot from a different NOR flash bank, instead of having a register dedicated
for this purpose.  Because the ngPIXIS is so different from the previous PIXIS,
a new file is introduced: ngpixis.c.

Also update the P2020DS checkboard() function to use the new macros defined
in the header file.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 8 insertions, 54 deletions

diff --git a/include/configs/P2020DS.h b/include/configs/P2020DS.h
index 30a5a31..66be725 100644
--- a/include/configs/P2020DS.h
+++ b/include/configs/P2020DS.h
@@ -238,7 +238,9 @@ extern unsigned long calculate_board_ddr_clk(unsigned long dummy);
 
 #define CONFIG_BOARD_EARLY_INIT_R	/* call board_early_init_r function */
 
-#define CONFIG_FSL_PIXIS	1	/* use common PIXIS code */
+#define CONFIG_FSL_NGPIXIS		/* use common ngPIXIS code */
+
+#ifdef CONFIG_FSL_NGPIXIS
 #define PIXIS_BASE	0xffdf0000	/* PIXIS registers */
 #ifdef CONFIG_PHYS_64BIT
 #define PIXIS_BASE_PHYS	0xfffdf0000ull
@@ -249,59 +251,11 @@ extern unsigned long calculate_board_ddr_clk(unsigned long dummy);
 #define CONFIG_SYS_BR3_PRELIM	(BR_PHYS_ADDR(PIXIS_BASE_PHYS) | BR_PS_8 | BR_V)
 #define CONFIG_SYS_OR3_PRELIM		0xffffeff7	/* 32KB but only 4k mapped */
 
-#define PIXIS_ID		0x0	/* Board ID at offset 0 */
-#define PIXIS_VER		0x1	/* Board version at offset 1 */
-#define PIXIS_PVER		0x2	/* PIXIS FPGA version at offset 2 */
-#define PIXIS_CSR		0x3	/* PIXIS General control/status register */
-#define PIXIS_RST		0x4	/* PIXIS Reset Control register */
-#define PIXIS_PWR		0x5	/* PIXIS Power status register */
-#define PIXIS_AUX		0x6	/* Auxiliary 1 register */
-#define PIXIS_SPD		0x7	/* Register for SYSCLK speed */
-#define PIXIS_AUX2		0x8	/* Auxiliary 2 register */
-#define PIXIS_VCTL		0x10	/* VELA Control Register */
-#define PIXIS_VSTAT		0x11	/* VELA Status Register */
-#define PIXIS_VCFGEN0		0x12	/* VELA Config Enable 0 */
-#define PIXIS_VCFGEN1		0x13	/* VELA Config Enable 1 */
-#define PIXIS_VCORE0		0x14	/* VELA VCORE0 Register */
-#define PIXIS_VBOOT		0x16	/* VELA VBOOT Register */
-#define PIXIS_VSPEED0		0x17	/* VELA VSpeed 0 */
-#define PIXIS_VSPEED1		0x18	/* VELA VSpeed 1 */
-#define PIXIS_VSPEED2		0x19	/* VELA VSpeed 2 */
-#define PIXIS_VSYSCLK0		0x19	/* VELA SYSCLK0 Register */
-#define PIXIS_VSYSCLK1		0x1A	/* VELA SYSCLK1 Register */
-#define PIXIS_VSYSCLK2		0x1B	/* VELA SYSCLK2 Register */
-#define PIXIS_VDDRCLK0		0x1C	/* VELA DDRCLK0 Register */
-#define PIXIS_VDDRCLK1		0x1D	/* VELA DDRCLK1 Register */
-#define PIXIS_VDDRCLK2		0x1E	/* VELA DDRCLK2 Register */
-
-#define PIXIS_VWATCH		0x24	/* Watchdog Register */
-#define PIXIS_LED		0x25	/* LED Register */
-
-#define PIXIS_SW(x)		0x20 + (x - 1) * 2
-#define PIXIS_EN(x)		0x21 + (x - 1) * 2
-#define PIXIS_SW7_LBMAP		0xc0	/* SW7 - cfg_lbmap */
-#define PIXIS_SW7_VBANK		0x30	/* SW7 - cfg_vbank */
-
-/* old pixis referenced names */
-#define PIXIS_VCLKH		0x19	/* VELA VCLKH register */
-#define PIXIS_VCLKL		0x1A	/* VELA VCLKL register */
-#define CONFIG_SYS_PIXIS_VBOOT_MASK	0xc0
-#define PIXIS_VSPEED2_TSEC1SER	0x8
-#define PIXIS_VSPEED2_TSEC2SER	0x4
-#define PIXIS_VSPEED2_TSEC3SER	0x2
-#define PIXIS_VSPEED2_TSEC4SER	0x1
-#define PIXIS_VCFGEN1_TSEC1SER	0x20
-#define PIXIS_VCFGEN1_TSEC2SER	0x20
-#define PIXIS_VCFGEN1_TSEC3SER	0x20
-#define PIXIS_VCFGEN1_TSEC4SER	0x20
-#define PIXIS_VSPEED2_MASK	(PIXIS_VSPEED2_TSEC1SER \
-					| PIXIS_VSPEED2_TSEC2SER \
-					| PIXIS_VSPEED2_TSEC3SER \
-					| PIXIS_VSPEED2_TSEC4SER)
-#define PIXIS_VCFGEN1_MASK	(PIXIS_VCFGEN1_TSEC1SER \
-					| PIXIS_VCFGEN1_TSEC2SER \
-					| PIXIS_VCFGEN1_TSEC3SER \
-					| PIXIS_VCFGEN1_TSEC4SER)
+#define PIXIS_LBMAP_SWITCH	7
+#define PIXIS_LBMAP_MASK	0xf0
+#define PIXIS_LBMAP_SHIFT	4
+#define PIXIS_LBMAP_ALTBANK	0x20
+#endif
 
 #define CONFIG_SYS_INIT_RAM_LOCK	1
 #define CONFIG_SYS_INIT_RAM_ADDR	0xffd00000	/* Initial L1 address */