ppc4xx: Remove 4xx NAND booting support

As ppc4xx currently only supports the deprecated nand_spl infrastructure
and nobody seems to have time / resources to port this over to the newer
SPL infrastructure, lets remove NAND booting completely.

This should not affect the "normal", non NAND-booting ppc4xx platforms
that are currently supported.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Tirumala Marri <tmarri@apm.com>
Cc: Matthias Fuchs <matthias.fuchs@esd.eu>
Cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Tom Rini <trini@ti.com>
Tested-by: Matthias Fuchs <matthias.fuchs@esd.eu>

3 files changed, 6 insertions, 49 deletions

diff --git a/board/amcc/sequoia/init.S b/board/amcc/sequoia/init.S
index b31e9db..f876639 100644
--- a/board/amcc/sequoia/init.S
+++ b/board/amcc/sequoia/init.S
@@ -48,11 +48,7 @@ tlbtab:
 	/* BOOT_CS (FLASH) must be forth. Before relocation SA_I can be off to use the
 	 * speed up boot process. It is patched after relocation to enable SA_I
 	 */
-#ifndef CONFIG_NAND_SPL
 	tlbentry( CONFIG_SYS_BOOT_BASE_ADDR, SZ_256M, CONFIG_SYS_BOOT_BASE_ADDR, 1, AC_RWX | SA_G )
-#else
-	tlbentry( CONFIG_SYS_NAND_BOOT_SPL_SRC, SZ_4K, CONFIG_SYS_NAND_BOOT_SPL_SRC, 1, AC_RWX | SA_G )
-#endif
 
 #ifdef CONFIG_SYS_INIT_RAM_DCACHE
 	/* TLB-entry for init-ram in dcache (SA_I must be turned off!) */
@@ -81,31 +77,3 @@ tlbtab:
 	tlbentry(0xE8000000, SZ_64K, 0xE8000000, 1, AC_RWX | SA_IG)
 
 	tlbtab_end
-
-#if defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL)
-	/*
-	 * For NAND booting the first TLB has to be reconfigured to full size
-	 * and with caching disabled after running from RAM!
-	 */
-#define TLB00	TLB0(CONFIG_SYS_BOOT_BASE_ADDR, SZ_256M)
-#define TLB01	TLB1(CONFIG_SYS_BOOT_BASE_ADDR, 1)
-#define TLB02	TLB2(AC_RWX | SA_IG)
-
-	.globl	reconfig_tlb0
-reconfig_tlb0:
-	sync
-	isync
-	addi	r4,r0,CONFIG_SYS_TLB_FOR_BOOT_FLASH /* TLB entry # */
-	lis	r5,TLB00@h
-	ori	r5,r5,TLB00@l
-	tlbwe	r5,r4,0x0000		/* Save it out */
-	lis	r5,TLB01@h
-	ori	r5,r5,TLB01@l
-	tlbwe	r5,r4,0x0001		/* Save it out */
-	lis	r5,TLB02@h
-	ori	r5,r5,TLB02@l
-	tlbwe	r5,r4,0x0002		/* Save it out */
-	sync
-	isync
-	blr
-#endif
diff --git a/board/amcc/sequoia/sdram.c b/board/amcc/sequoia/sdram.c
index 2c5a218..67640d7 100644
--- a/board/amcc/sequoia/sdram.c
+++ b/board/amcc/sequoia/sdram.c
@@ -26,14 +26,6 @@
 extern int denali_wait_for_dlllock(void);
 extern void denali_core_search_data_eye(void);
 
-#if defined(CONFIG_NAND_SPL)
-/* Using arch/powerpc/cpu/ppc4xx/speed.c to calculate the bus frequency is too big
- * for the 4k NAND boot image so define bus_frequency to 133MHz here
- * which is save for the refresh counter setup.
- */
-#define get_bus_freq(val)	133333333
-#endif
-
 /*************************************************************************
  *
  * initdram -- 440EPx's DDR controller is a DENALI Core
@@ -41,8 +33,7 @@ extern void denali_core_search_data_eye(void);
  ************************************************************************/
 phys_size_t initdram (int board_type)
 {
-#if !(defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_SYS_RAMBOOT)) || \
-    defined(CONFIG_NAND_SPL)
+#if !defined(CONFIG_SYS_RAMBOOT)
 	ulong speed = get_bus_freq(0);
 
 	mtsdram(DDR0_02, 0x00000000);
@@ -81,7 +72,7 @@ phys_size_t initdram (int board_type)
 	mtsdram(DDR0_02, 0x00000001);
 
 	denali_wait_for_dlllock();
-#endif /* #ifndef CONFIG_NAND_U_BOOT */
+#endif /* #ifndef CONFIG_SYS_RAMBOOT */
 
 #ifdef CONFIG_DDR_DATA_EYE
 	/* -----------------------------------------------------------+
diff --git a/board/amcc/sequoia/sequoia.c b/board/amcc/sequoia/sequoia.c
index 73c65c5..53f9b34 100644
--- a/board/amcc/sequoia/sequoia.c
+++ b/board/amcc/sequoia/sequoia.c
@@ -142,8 +142,7 @@ int misc_init_r(void)
 	gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
 	gd->bd->bi_flashoffset = 0;
 
-#if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL) || \
-    defined(CONFIG_SYS_RAMBOOT)
+#if defined(CONFIG_SYS_RAMBOOT)
 	mtdcr(EBC0_CFGADDR, PB3CR);
 #else
 	mtdcr(EBC0_CFGADDR, PB0CR);
@@ -151,8 +150,7 @@ int misc_init_r(void)
 	pbcr = mfdcr(EBC0_CFGDATA);
 	size_val = ffs(gd->bd->bi_flashsize) - 21;
 	pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
-#if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL) || \
-    defined(CONFIG_SYS_RAMBOOT)
+#if defined(CONFIG_SYS_RAMBOOT)
 	mtdcr(EBC0_CFGADDR, PB3CR);
 #else
 	mtdcr(EBC0_CFGADDR, PB0CR);
@@ -360,7 +358,7 @@ void board_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
 }
 #endif
 
-#if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_SYS_RAMBOOT)
+#if defined(CONFIG_SYS_RAMBOOT)
 /*
  * On NAND-booting sequoia, we need to patch the chips select numbers
  * in the dtb (CS0 - NAND, CS3 - NOR)
@@ -411,4 +409,4 @@ void ft_board_setup(void *blob, bd_t *bd)
 		return;
 	}
 }
-#endif /* CONFIG_NAND_U_BOOT */
+#endif /* CONFIG_SYS_RAMBOOT */