[U-Boot] [PATCH 6/7] powerpc/qe: supports loading QE firmware from nand flash

[Haiying Wang]

and because some platforms need to load QE firmware from NAND flash(no NOR
flash), it makes qe_init to be called after nand_init.

Signed-off-by: Haiying Wang <Haiying.Wang at freescale.com>
---
 arch/powerpc/cpu/mpc83xx/cpu_init.c |    8 --------
 arch/powerpc/cpu/mpc85xx/cpu_init.c |    8 --------
 arch/powerpc/lib/board.c            |   31 +++++++++++++++++++++++++++++++
 3 files changed, 31 insertions(+), 16 deletions(-)

diff --git a/arch/powerpc/cpu/mpc83xx/cpu_init.c b/arch/powerpc/cpu/mpc83xx/cpu_init.c
index 83cba93..6d40037 100644
--- a/arch/powerpc/cpu/mpc83xx/cpu_init.c
+++ b/arch/powerpc/cpu/mpc83xx/cpu_init.c
@@ -34,8 +34,6 @@ DECLARE_GLOBAL_DATA_PTR;
 extern qe_iop_conf_t qe_iop_conf_tab[];
 extern void qe_config_iopin(u8 port, u8 pin, int dir,
 			 int open_drain, int assign);
-extern void qe_init(uint qe_base);
-extern void qe_reset(void);
 
 static void config_qe_ioports(void)
 {
@@ -333,12 +331,6 @@ void cpu_init_f (volatile immap_t * im)
 
 int cpu_init_r (void)
 {
-#ifdef CONFIG_QE
-	uint qe_base = CONFIG_SYS_IMMR + 0x00100000; /* QE immr base */
-
-	qe_init(qe_base);
-	qe_reset();
-#endif
 	return 0;
 }
 
diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init.c b/arch/powerpc/cpu/mpc85xx/cpu_init.c
index 1fbc0cc..f799773 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu_init.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu_init.c
@@ -44,8 +44,6 @@ DECLARE_GLOBAL_DATA_PTR;
 extern qe_iop_conf_t qe_iop_conf_tab[];
 extern void qe_config_iopin(u8 port, u8 pin, int dir,
 				int open_drain, int assign);
-extern void qe_init(uint qe_base);
-extern void qe_reset(void);
 
 static void config_qe_ioports(void)
 {
@@ -369,12 +367,6 @@ int cpu_init_r(void)
 
 	enable_cpc();
 
-#ifdef CONFIG_QE
-	uint qe_base = CONFIG_SYS_IMMR + 0x00080000; /* QE immr base */
-	qe_init(qe_base);
-	qe_reset();
-#endif
-
 #if defined(CONFIG_SYS_HAS_SERDES)
 	/* needs to be in ram since code uses global static vars */
 	fsl_serdes_init();
diff --git a/arch/powerpc/lib/board.c b/arch/powerpc/lib/board.c
index 0e00d86..3fa865d 100644
--- a/arch/powerpc/lib/board.c
+++ b/arch/powerpc/lib/board.c
@@ -87,6 +87,15 @@
 #include <miiphy.h>
 #endif
 
+#ifdef CONFIG_QE
+#ifdef CONFIG_SYS_QE_FW_IN_NAND
+#include <nand.h>
+#include <asm/errno.h>
+#endif
+extern void qe_init(uint qe_base);
+extern void qe_reset(void);
+#endif
+
 #ifdef CONFIG_SYS_UPDATE_FLASH_SIZE
 extern int update_flash_size (int flash_size);
 #endif
@@ -631,6 +640,10 @@ void board_init_r (gd_t *id, ulong dest_addr)
 	char *s;
 	bd_t *bd;
 	ulong malloc_start;
+#ifdef CONFIG_SYS_QE_FW_IN_NAND
+	int ret;
+	size_t fw_length = CONFIG_SYS_QE_FW_LENGTH;
+#endif
 
 #ifndef CONFIG_SYS_NO_FLASH
 	ulong flash_size;
@@ -783,6 +796,24 @@ void board_init_r (gd_t *id, ulong dest_addr)
 	nand_init();		/* go init the NAND */
 #endif
 
+	/* QE needs to be initialized after nand_init because some boards have
+	 * to save QE firmware in NAND flash.
+	 */
+#ifdef CONFIG_QE
+#ifdef CONFIG_SYS_QE_FW_IN_NAND
+	/* load QE firmware from NAND flash to DDR first */
+	ret = nand_read(&nand_info[0], (loff_t)CONFIG_SYS_QE_FW_IN_NAND,
+		&fw_length, (u_char *)CONFIG_SYS_QE_FW_ADDR);
+
+	if (ret && ret == -EUCLEAN) {
+		printf ("NAND read for QE firmware at offset %x failed %d\n",
+		(loff_t)CONFIG_SYS_QE_FW_IN_NAND, ret);
+	}
+#endif /* CONFIG_SYS_QE_FW_IN_NAND */
+	qe_init(CONFIG_SYS_IMMR + 0x00080000);
+	qe_reset();
+#endif /* CONFIG_QE */
+
 	/* relocate environment function pointers etc. */
 	env_relocate ();
 
-- 
1.7.0