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>
diff --git a/board/freescale/p2020ds/p2020ds.c b/board/freescale/p2020ds/p2020ds.c
index 664135c..f0ff209 100644
--- a/board/freescale/p2020ds/p2020ds.c
+++ b/board/freescale/p2020ds/p2020ds.c
@@ -38,6 +38,7 @@
#include <asm/mp.h>
#include <netdev.h>
+#include "../common/ngpixis.h"
#include "../common/sgmii_riser.h"
DECLARE_GLOBAL_DATA_PTR;
@@ -46,30 +47,24 @@
int checkboard(void)
{
- u8 sw7;
- u8 *pixis_base = (u8 *)PIXIS_BASE;
+ u8 sw;
puts("Board: P2020DS ");
#ifdef CONFIG_PHYS_64BIT
puts("(36-bit addrmap) ");
#endif
- printf("Sys ID: 0x%02x, "
- "Sys Ver: 0x%02x, FPGA Ver: 0x%02x, ",
- in_8(pixis_base + PIXIS_ID), in_8(pixis_base + PIXIS_VER),
- in_8(pixis_base + PIXIS_PVER));
+ printf("Sys ID: 0x%02x, Sys Ver: 0x%02x, FPGA Ver: 0x%02x, ",
+ in_8(&pixis->id), in_8(&pixis->arch), in_8(&pixis->scver));
- sw7 = in_8(pixis_base + PIXIS_SW(7));
- switch ((sw7 & PIXIS_SW7_LBMAP) >> 6) {
- case 0:
- case 1:
- printf ("vBank: %d\n", ((sw7 & PIXIS_SW7_VBANK) >> 4));
- break;
- case 2:
- case 3:
- puts ("Promjet\n");
- break;
- }
+ sw = in_8(&PIXIS_SW(PIXIS_LBMAP_SWITCH));
+ sw = (sw & PIXIS_LBMAP_MASK) >> PIXIS_LBMAP_SHIFT;
+
+ if (sw < 0x8)
+ /* The lower two bits are the actual vbank number */
+ printf("vBank: %d\n", sw & 3);
+ else
+ puts("Promjet\n");
return 0;
}
@@ -370,30 +365,22 @@
return gd->mem_clk;
}
-unsigned long
-calculate_board_sys_clk(ulong dummy)
+unsigned long calculate_board_sys_clk(ulong dummy)
{
ulong val;
- u8 *pixis_base = (u8 *)PIXIS_BASE;
- val = ics307_clk_freq(
- in_8(pixis_base + PIXIS_VSYSCLK0),
- in_8(pixis_base + PIXIS_VSYSCLK1),
- in_8(pixis_base + PIXIS_VSYSCLK2));
+ val = ics307_clk_freq(in_8(&pixis->sclk[0]), in_8(&pixis->sclk[1]),
+ in_8(&pixis->sclk[2]));
debug("sysclk val = %lu\n", val);
return val;
}
-unsigned long
-calculate_board_ddr_clk(ulong dummy)
+unsigned long calculate_board_ddr_clk(ulong dummy)
{
ulong val;
- u8 *pixis_base = (u8 *)PIXIS_BASE;
- val = ics307_clk_freq(
- in_8(pixis_base + PIXIS_VDDRCLK0),
- in_8(pixis_base + PIXIS_VDDRCLK1),
- in_8(pixis_base + PIXIS_VDDRCLK2));
+ val = ics307_clk_freq(in_8(&pixis->dclk[0]), in_8(&pixis->dclk[1]),
+ in_8(&pixis->dclk[2]));
debug("ddrclk val = %lu\n", val);
return val;
}
@@ -402,9 +389,8 @@
{
u8 i;
ulong val = 0;
- u8 *pixis_base = (u8 *)PIXIS_BASE;
- i = in_8(pixis_base + PIXIS_SPD);
+ i = in_8(&pixis->spd);
i &= 0x07;
switch (i) {
@@ -441,9 +427,8 @@
{
u8 i;
ulong val = 0;
- u8 *pixis_base = (u8 *)PIXIS_BASE;
- i = in_8(pixis_base + PIXIS_SPD);
+ i = in_8(&pixis->spd);
i &= 0x38;
i >>= 3;