powerpc/ppc4xx: Make gdsys 405ep boards reset more generic
In order to add boards that have different hardware for fpga reset,
any 405ep gdsys board now provides these functions:
void gd405ep_init(void);
void gd405ep_set_fpga_reset(unsigned state);
void gd405ep_setup_hw(void);
int gd405ep_get_fpga_done(unsigned fpga);
Signed-off-by: Dirk Eibach <eibach@gdsys.de>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/gdsys/405ep/405ep.c b/board/gdsys/405ep/405ep.c
index 8b80533..bea671e 100644
--- a/board/gdsys/405ep/405ep.c
+++ b/board/gdsys/405ep/405ep.c
@@ -28,12 +28,9 @@
#include <asm/ppc4xx-gpio.h>
#include <asm/global_data.h>
+#include "405ep.h"
#include <gdsys_fpga.h>
-#define LATCH0_BASE (CONFIG_SYS_LATCH_BASE)
-#define LATCH1_BASE (CONFIG_SYS_LATCH_BASE + 0x100)
-#define LATCH2_BASE (CONFIG_SYS_LATCH_BASE + 0x200)
-
#define REFLECTION_TESTPATTERN 0xdede
#define REFLECTION_TESTPATTERN_INV (~REFLECTION_TESTPATTERN & 0xffff)
@@ -55,7 +52,6 @@
int board_early_init_f(void)
{
unsigned k;
- unsigned ctr;
for (k = 0; k < CONFIG_SYS_FPGA_COUNT; ++k)
gd->fpga_state[k] = 0;
@@ -73,26 +69,29 @@
* -> ca. 15 us
*/
mtebc(EBC0_CFG, 0xa8400000); /* ebc always driven */
+ return 0;
+}
+
+int board_early_init_r(void)
+{
+ unsigned k;
+ unsigned ctr;
+
+ for (k = 0; k < CONFIG_SYS_FPGA_COUNT; ++k)
+ gd->fpga_state[k] = 0;
/*
- * setup io-latches for reset
+ * reset FPGA
*/
- out_le16((void *)LATCH0_BASE, CONFIG_SYS_LATCH0_RESET);
- out_le16((void *)LATCH1_BASE, CONFIG_SYS_LATCH1_RESET);
+ gd405ep_init();
- /*
- * set "startup-finished"-gpios
- */
- gpio_write_bit(21, 0);
- gpio_write_bit(22, 1);
+ gd405ep_set_fpga_reset(1);
- /*
- * wait for fpga-done
- */
+ gd405ep_setup_hw();
+
for (k = 0; k < CONFIG_SYS_FPGA_COUNT; ++k) {
ctr = 0;
- while (!(in_le16((void *)LATCH2_BASE)
- & CONFIG_SYS_FPGA_DONE(k))) {
+ while (!gd405ep_get_fpga_done(k)) {
udelay(100000);
if (ctr++ > 5) {
gd->fpga_state[k] |= FPGA_STATE_DONE_FAILED;
@@ -101,12 +100,9 @@
}
}
- /*
- * setup io-latches for boot (stop reset)
- */
udelay(10);
- out_le16((void *)LATCH0_BASE, CONFIG_SYS_LATCH0_BOOT);
- out_le16((void *)LATCH1_BASE, CONFIG_SYS_LATCH1_BOOT);
+
+ gd405ep_set_fpga_reset(0);
for (k = 0; k < CONFIG_SYS_FPGA_COUNT; ++k) {
ihs_fpga_t *fpga = (ihs_fpga_t *) CONFIG_SYS_FPGA_BASE(k);