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>

1 files changed, 19 insertions, 23 deletions

diff --git a/board/gdsys/405ep/405ep.c b/board/gdsys/405ep/405ep.c
index 8b80533d98..bea671e1f7 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 @@ void print_fpga_state(unsigned dev)
 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 @@ int board_early_init_f(void)
 	 * -> ca. 15 us
 	 */
 	mtebc(EBC0_CFG, 0xa8400000);	/* ebc always driven */
+	return 0;
+}
 
-	/*
-	 * setup io-latches for reset
-	 */
-	out_le16((void *)LATCH0_BASE, CONFIG_SYS_LATCH0_RESET);
-	out_le16((void *)LATCH1_BASE, CONFIG_SYS_LATCH1_RESET);
+int board_early_init_r(void)
+{
+	unsigned k;
+	unsigned ctr;
 
-	/*
-	 * set "startup-finished"-gpios
-	 */
-	gpio_write_bit(21, 0);
-	gpio_write_bit(22, 1);
+	for (k = 0; k < CONFIG_SYS_FPGA_COUNT; ++k)
+		gd->fpga_state[k] = 0;
 
 	/*
-	 * wait for fpga-done
+	 * reset FPGA
 	 */
+	gd405ep_init();
+
+	gd405ep_set_fpga_reset(1);
+
+	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 @@ int board_early_init_f(void)
 		}
 	}
 
-	/*
-	 * 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);