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authorMasahiro Yamada <yamada.masahiro@socionext.com>2015-09-02 04:40:23 +0300
committerTom Rini <trini@konsulko.com>2015-09-02 18:33:12 +0300
commit54a3f260fdbf8c4b3d4d6bf7c563dc4da8619b47 (patch)
tree738d80af27dd3a9759698b5cf65ebfbe92cf74c0 /board/csb272/init.S
parent0d2fc81133aa9e8f19d16de48d4f0a8f1bdde025 (diff)
downloadu-boot-54a3f260fdbf8c4b3d4d6bf7c563dc4da8619b47.tar.xz
powerpc: ppc4xx: remove csb272, csb472 support
These have not been converted to Generic Board, so should be removed. (See doc/README.generic-board for details.) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Tolunay Orkun <torkun@nextio.com>
Diffstat (limited to 'board/csb272/init.S')
-rw-r--r--board/csb272/init.S196
1 files changed, 0 insertions, 196 deletions
diff --git a/board/csb272/init.S b/board/csb272/init.S
deleted file mode 100644
index bf1d98680d..0000000000
--- a/board/csb272/init.S
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- * SPDX-License-Identifier: GPL-2.0 IBM-pibs
- */
-#include <config.h>
-#include <asm/ppc4xx.h>
-
-#include <ppc_asm.tmpl>
-#include <ppc_defs.h>
-
-#include <asm/cache.h>
-#include <asm/mmu.h>
-
-#define LI32(reg,val) \
- addis reg,0,val@h;\
- ori reg,reg,val@l
-
-#define WDCR_EBC(reg,val) \
- addi r4,0,reg;\
- mtdcr EBC0_CFGADDR,r4;\
- addis r4,0,val@h;\
- ori r4,r4,val@l;\
- mtdcr EBC0_CFGDATA,r4
-
-#define WDCR_SDRAM(reg,val) \
- addi r4,0,reg;\
- mtdcr SDRAM0_CFGADDR,r4;\
- addis r4,0,val@h;\
- ori r4,r4,val@l;\
- mtdcr SDRAM0_CFGDATA,r4
-
-/******************************************************************************
- * Function: ext_bus_cntlr_init
- *
- * Description: Configures EBC Controller and a few basic chip selects.
- *
- * CS0 is setup to get the Boot Flash out of the addresss range
- * so that we may setup a stack. CS7 is setup so that we can
- * access and reset the hardware watchdog.
- *
- * IMPORTANT: For pass1 this code must run from
- * cache since you can not reliably change a peripheral banks
- * timing register (pbxap) while running code from that bank.
- * For ex., since we are running from ROM on bank 0, we can NOT
- * execute the code that modifies bank 0 timings from ROM, so
- * we run it from cache.
- *
- * Notes: Does NOT use the stack.
- *****************************************************************************/
- .section ".text"
- .align 2
- .globl ext_bus_cntlr_init
- .type ext_bus_cntlr_init, @function
-ext_bus_cntlr_init:
- mflr r0
- /********************************************************************
- * Prefetch entire ext_bus_cntrl_init function into the icache.
- * This is necessary because we are going to change the same CS we
- * are executing from. Otherwise a CPU lockup may occur.
- *******************************************************************/
- bl ..getAddr
-..getAddr:
- mflr r3 /* get address of ..getAddr */
-
- /* Calculate number of cache lines for this function */
- addi r4, 0, (((.Lfe0 - ..getAddr) / CONFIG_SYS_CACHELINE_SIZE) + 2)
- mtctr r4
-..ebcloop:
- icbt r0, r3 /* prefetch cache line for addr in r3*/
- addi r3, r3, CONFIG_SYS_CACHELINE_SIZE /* move to next cache line */
- bdnz ..ebcloop /* continue for $CTR cache lines */
-
- /********************************************************************
- * Delay to ensure all accesses to ROM are complete before changing
- * bank 0 timings. 200usec should be enough.
- * 200,000,000 (cycles/sec) X .000200 (sec) = 0x9C40 cycles.
- *******************************************************************/
- addis r3, 0, 0x0
- ori r3, r3, 0xA000 /* wait 200us from reset */
- mtctr r3
-..spinlp:
- bdnz ..spinlp /* spin loop */
-
- /********************************************************************
- * SETUP CPC0_CR0
- *******************************************************************/
- LI32(r4, 0x007000c0)
- mtdcr CPC0_CR0, r4
-
- /********************************************************************
- * Setup CPC0_CR1: Change PCIINT signal to PerWE
- *******************************************************************/
- mfdcr r4, CPC0_CR1
- ori r4, r4, 0x4000
- mtdcr CPC0_CR1, r4
-
- /********************************************************************
- * Setup External Bus Controller (EBC).
- *******************************************************************/
- WDCR_EBC(EBC0_CFG, 0xd84c0000)
- /********************************************************************
- * Memory Bank 0 (Intel 28F128J3 Flash) initialization
- *******************************************************************/
- /*WDCR_EBC(PB1AP, 0x02869200)*/
- WDCR_EBC(PB1AP, 0x07869200)
- WDCR_EBC(PB0CR, 0xfe0bc000)
- /********************************************************************
- * Memory Bank 1 (Holtek HT6542B PS/2) initialization
- *******************************************************************/
- WDCR_EBC(PB1AP, 0x1f869200)
- WDCR_EBC(PB1CR, 0xf0818000)
- /********************************************************************
- * Memory Bank 2 (Epson S1D13506) initialization
- *******************************************************************/
- WDCR_EBC(PB2AP, 0x05860300)
- WDCR_EBC(PB2CR, 0xf045a000)
- /********************************************************************
- * Memory Bank 3 (Philips SJA1000 CAN Controllers) initialization
- *******************************************************************/
- WDCR_EBC(PB3AP, 0x0387d200)
- WDCR_EBC(PB3CR, 0xf021c000)
- /********************************************************************
- * Memory Bank 4-7 (Unused) initialization
- *******************************************************************/
- WDCR_EBC(PB4AP, 0)
- WDCR_EBC(PB4CR, 0)
- WDCR_EBC(PB5AP, 0)
- WDCR_EBC(PB5CR, 0)
- WDCR_EBC(PB6AP, 0)
- WDCR_EBC(PB6CR, 0)
- WDCR_EBC(PB7AP, 0)
- WDCR_EBC(PB7CR, 0)
-
- /* We are all done */
- mtlr r0 /* Restore link register */
- blr /* Return to calling function */
-.Lfe0: .size ext_bus_cntlr_init,.Lfe0-ext_bus_cntlr_init
-/* end ext_bus_cntlr_init() */
-
-/******************************************************************************
- * Function: sdram_init
- *
- * Description: Configures SDRAM memory banks.
- *
- * Notes: Does NOT use the stack.
- *****************************************************************************/
- .section ".text"
- .align 2
- .globl sdram_init
- .type sdram_init, @function
-sdram_init:
-
- /*
- * Disable memory controller to allow
- * values to be changed.
- */
- WDCR_SDRAM(SDRAM0_CFG, 0x00000000)
-
- /*
- * Configure Memory Banks
- */
- WDCR_SDRAM(SDRAM0_B0CR, 0x00084001)
- WDCR_SDRAM(SDRAM0_B1CR, 0x00000000)
- WDCR_SDRAM(SDRAM0_B2CR, 0x00000000)
- WDCR_SDRAM(SDRAM0_B3CR, 0x00000000)
-
- /*
- * Set up SDTR1 (SDRAM Timing Register)
- */
- WDCR_SDRAM(SDRAM0_TR, 0x00854009)
-
- /*
- * Set RTR (Refresh Timing Register)
- */
- WDCR_SDRAM(SDRAM0_RTR, 0x10000000)
- /* WDCR_SDRAM(SDRAM0_RTR, 0x05f00000) */
-
- /********************************************************************
- * Delay to ensure 200usec have elapsed since reset. Assume worst
- * case that the core is running 200Mhz:
- * 200,000,000 (cycles/sec) X .000200 (sec) = 0x9C40 cycles
- *******************************************************************/
- addis r3, 0, 0x0000
- ori r3, r3, 0xA000 /* Wait >200us from reset */
- mtctr r3
-..spinlp2:
- bdnz ..spinlp2 /* spin loop */
-
- /********************************************************************
- * Set memory controller options reg, MCOPT1.
- *******************************************************************/
- WDCR_SDRAM(SDRAM0_CFG,0x80800000)
-
-..sdri_done:
- blr /* Return to calling function */
-.Lfe1: .size sdram_init,.Lfe1-sdram_init
-/* end sdram_init() */