arm: Remove support for unused s3c64xx

Following the removal of the smdk6400 board, the s3c64xx SoC becomes unused, so
remove associated code. It will still be possible to restore it later from the
Git history if necessary.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>

7 files changed, 0 insertions, 584 deletions

diff --git a/arch/arm/cpu/arm1176/s3c64xx/Makefile b/arch/arm/cpu/arm1176/s3c64xx/Makefile
deleted file mode 100644
index 266a0739ce..0000000000
--- a/arch/arm/cpu/arm1176/s3c64xx/Makefile
+++ /dev/null
@@ -1,50 +0,0 @@
-#
-# (C) Copyright 2000-2003
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# (C) Copyright 2008
-# Guennadi Liakhovetki, DENX Software Engineering, <lg@denx.de>
-#
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
-#
-
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(SOC).o
-
-SOBJS	= reset.o
-
-COBJS-$(CONFIG_S3C6400)	+= cpu_init.o speed.o
-COBJS-y	+= timer.o init.o
-
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS-y))
-
-all:	$(obj).depend $(START) $(LIB)
-
-$(LIB):	$(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/arch/arm/cpu/arm1176/s3c64xx/config.mk b/arch/arm/cpu/arm1176/s3c64xx/config.mk
deleted file mode 100644
index 222d352b3a..0000000000
--- a/arch/arm/cpu/arm1176/s3c64xx/config.mk
+++ /dev/null
@@ -1,34 +0,0 @@
-#
-# (C) Copyright 2002
-# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
-#
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
-#
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
-
-# Make ARMv5 to allow more compilers to work, even though its v6.
-PLATFORM_CPPFLAGS += -march=armv5t
-# =========================================================================
-#
-# Supply options according to compiler version
-#
-# =========================================================================
-PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,\
-			$(call cc-option,-malignment-traps,))
-PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT)
diff --git a/arch/arm/cpu/arm1176/s3c64xx/cpu_init.S b/arch/arm/cpu/arm1176/s3c64xx/cpu_init.S
deleted file mode 100644
index df88cba342..0000000000
--- a/arch/arm/cpu/arm1176/s3c64xx/cpu_init.S
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * Originates from Samsung's u-boot 1.1.6 port to S3C6400 / SMDK6400
- *
- * Copyright (C) 2008
- * Guennadi Liakhovetki, DENX Software Engineering, <lg@denx.de>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <config.h>
-#include <asm/arch/s3c6400.h>
-
-	.globl mem_ctrl_asm_init
-mem_ctrl_asm_init:
-	/* DMC1 base address 0x7e001000 */
-	ldr	r0, =ELFIN_DMC1_BASE
-
-	ldr	r1, =0x4
-	str	r1, [r0, #INDEX_DMC_MEMC_CMD]
-
-	ldr	r1, =DMC_DDR_REFRESH_PRD
-	str	r1, [r0, #INDEX_DMC_REFRESH_PRD]
-
-	ldr	r1, =DMC_DDR_CAS_LATENCY
-	str	r1, [r0, #INDEX_DMC_CAS_LATENCY]
-
-	ldr	r1, =DMC_DDR_t_DQSS
-	str	r1, [r0, #INDEX_DMC_T_DQSS]
-
-	ldr	r1, =DMC_DDR_t_MRD
-	str	r1, [r0, #INDEX_DMC_T_MRD]
-
-	ldr	r1, =DMC_DDR_t_RAS
-	str	r1, [r0, #INDEX_DMC_T_RAS]
-
-	ldr	r1, =DMC_DDR_t_RC
-	str	r1, [r0, #INDEX_DMC_T_RC]
-
-	ldr	r1, =DMC_DDR_t_RCD
-	ldr	r2, =DMC_DDR_schedule_RCD
-	orr	r1, r1, r2
-	str	r1, [r0, #INDEX_DMC_T_RCD]
-
-	ldr	r1, =DMC_DDR_t_RFC
-	ldr	r2, =DMC_DDR_schedule_RFC
-	orr	r1, r1, r2
-	str	r1, [r0, #INDEX_DMC_T_RFC]
-
-	ldr	r1, =DMC_DDR_t_RP
-	ldr	r2, =DMC_DDR_schedule_RP
-	orr	r1, r1, r2
-	str	r1, [r0, #INDEX_DMC_T_RP]
-
-	ldr	r1, =DMC_DDR_t_RRD
-	str	r1, [r0, #INDEX_DMC_T_RRD]
-
-	ldr	r1, =DMC_DDR_t_WR
-	str	r1, [r0, #INDEX_DMC_T_WR]
-
-	ldr	r1, =DMC_DDR_t_WTR
-	str	r1, [r0, #INDEX_DMC_T_WTR]
-
-	ldr	r1, =DMC_DDR_t_XP
-	str	r1, [r0, #INDEX_DMC_T_XP]
-
-	ldr	r1, =DMC_DDR_t_XSR
-	str	r1, [r0, #INDEX_DMC_T_XSR]
-
-	ldr	r1, =DMC_DDR_t_ESR
-	str	r1, [r0, #INDEX_DMC_T_ESR]
-
-	ldr	r1, =DMC1_MEM_CFG
-	str	r1, [r0, #INDEX_DMC_MEMORY_CFG]
-
-	ldr	r1, =DMC1_MEM_CFG2
-	str	r1, [r0, #INDEX_DMC_MEMORY_CFG2]
-
-	ldr	r1, =DMC1_CHIP0_CFG
-	str	r1, [r0, #INDEX_DMC_CHIP_0_CFG]
-
-	ldr	r1, =DMC_DDR_32_CFG
-	str	r1, [r0, #INDEX_DMC_USER_CONFIG]
-
-	/* DMC0 DDR Chip 0 configuration direct command reg */
-	ldr	r1, =DMC_NOP0
-	str	r1, [r0, #INDEX_DMC_DIRECT_CMD]
-
-	/* Precharge All */
-	ldr	r1, =DMC_PA0
-	str	r1, [r0, #INDEX_DMC_DIRECT_CMD]
-
-	/* Auto Refresh 2 time */
-	ldr	r1, =DMC_AR0
-	str	r1, [r0, #INDEX_DMC_DIRECT_CMD]
-	str	r1, [r0, #INDEX_DMC_DIRECT_CMD]
-
-	/* MRS */
-	ldr	r1, =DMC_mDDR_EMR0
-	str	r1, [r0, #INDEX_DMC_DIRECT_CMD]
-
-	/* Mode Reg */
-	ldr	r1, =DMC_mDDR_MR0
-	str	r1, [r0, #INDEX_DMC_DIRECT_CMD]
-
-	/* Enable DMC1 */
-	mov	r1, #0x0
-	str	r1, [r0, #INDEX_DMC_MEMC_CMD]
-
-check_dmc1_ready:
-	ldr	r1, [r0, #INDEX_DMC_MEMC_STATUS]
-	mov	r2, #0x3
-	and	r1, r1, r2
-	cmp	r1, #0x1
-	bne	check_dmc1_ready
-	nop
-
-	mov	pc, lr
-
-	.ltorg
diff --git a/arch/arm/cpu/arm1176/s3c64xx/init.c b/arch/arm/cpu/arm1176/s3c64xx/init.c
deleted file mode 100644
index f113d8ed41..0000000000
--- a/arch/arm/cpu/arm1176/s3c64xx/init.c
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * (C) Copyright 2012 Ashok Kumar Reddy Kourla
- * ashokkourla2000@gmail.com
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include<common.h>
-
-int arch_cpu_init(void)
-{
-	icache_enable();
-
-	return 0;
-}
diff --git a/arch/arm/cpu/arm1176/s3c64xx/reset.S b/arch/arm/cpu/arm1176/s3c64xx/reset.S
deleted file mode 100644
index eae572e4fd..0000000000
--- a/arch/arm/cpu/arm1176/s3c64xx/reset.S
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright (c) 2009 Samsung Electronics.
- * Minkyu Kang <mk7.kang@samsung.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <asm/arch/s3c6400.h>
-
-.globl reset_cpu
-reset_cpu:
-	ldr	r1, =ELFIN_CLOCK_POWER_BASE
-	ldr	r2, [r1, #SYS_ID_OFFSET]
-	ldr	r3, =0xffff
-	and	r2, r3, r2, lsr #12
-	str	r2, [r1, #SW_RST_OFFSET]
-_loop_forever:
-	b	_loop_forever
diff --git a/arch/arm/cpu/arm1176/s3c64xx/speed.c b/arch/arm/cpu/arm1176/s3c64xx/speed.c
deleted file mode 100644
index 11962acade..0000000000
--- a/arch/arm/cpu/arm1176/s3c64xx/speed.c
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- * (C) Copyright 2001-2004
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2002
- * David Mueller, ELSOFT AG, d.mueller@elsoft.ch
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-/*
- * This code should work for both the S3C2400 and the S3C2410
- * as they seem to have the same PLL and clock machinery inside.
- * The different address mapping is handled by the s3c24xx.h files below.
- */
-
-#include <common.h>
-#include <asm/arch/s3c6400.h>
-
-#define APLL 0
-#define MPLL 1
-#define EPLL 2
-
-/* ------------------------------------------------------------------------- */
-/*
- * NOTE: This describes the proper use of this file.
- *
- * CONFIG_SYS_CLK_FREQ should be defined as the input frequency of the PLL.
- *
- * get_FCLK(), get_HCLK(), get_PCLK() and get_UCLK() return the clock of
- * the specified bus in HZ.
- */
-/* ------------------------------------------------------------------------- */
-
-static ulong get_PLLCLK(int pllreg)
-{
-	ulong r, m, p, s;
-
-	switch (pllreg) {
-	case APLL:
-		r = APLL_CON_REG;
-		break;
-	case MPLL:
-		r = MPLL_CON_REG;
-		break;
-	case EPLL:
-		r = EPLL_CON0_REG;
-		break;
-	default:
-		hang();
-	}
-
-	m = (r >> 16) & 0x3ff;
-	p = (r >> 8) & 0x3f;
-	s = r & 0x7;
-
-	return m * (CONFIG_SYS_CLK_FREQ / (p * (1 << s)));
-}
-
-/* return ARMCORE frequency */
-ulong get_ARMCLK(void)
-{
-	ulong div;
-
-	div = CLK_DIV0_REG;
-
-	return get_PLLCLK(APLL) / ((div & 0x7) + 1);
-}
-
-/* return FCLK frequency */
-ulong get_FCLK(void)
-{
-	return get_PLLCLK(APLL);
-}
-
-/* return HCLK frequency */
-ulong get_HCLK(void)
-{
-	ulong fclk;
-
-	uint hclkx2_div = ((CLK_DIV0_REG >> 9) & 0x7) + 1;
-	uint hclk_div = ((CLK_DIV0_REG >> 8) & 0x1) + 1;
-
-	/*
-	 * Bit 7 exists on s3c6410, and not on s3c6400, it is reserved on
-	 * s3c6400 and is always 0, and it is indeed running in ASYNC mode
-	 */
-	if (OTHERS_REG & 0x80)
-		fclk = get_FCLK();		/* SYNC Mode	*/
-	else
-		fclk = get_PLLCLK(MPLL);	/* ASYNC Mode	*/
-
-	return fclk / (hclk_div * hclkx2_div);
-}
-
-/* return PCLK frequency */
-ulong get_PCLK(void)
-{
-	ulong fclk;
-	uint hclkx2_div = ((CLK_DIV0_REG >> 9) & 0x7) + 1;
-	uint pre_div = ((CLK_DIV0_REG >> 12) & 0xf) + 1;
-
-	if (OTHERS_REG & 0x80)
-		fclk = get_FCLK();		/* SYNC Mode	*/
-	else
-		fclk = get_PLLCLK(MPLL);	/* ASYNC Mode	*/
-
-	return fclk / (hclkx2_div * pre_div);
-}
-
-/* return UCLK frequency */
-ulong get_UCLK(void)
-{
-	return get_PLLCLK(EPLL);
-}
-
-int print_cpuinfo(void)
-{
-	printf("\nCPU:     S3C6400@%luMHz\n", get_ARMCLK() / 1000000);
-	printf("         Fclk = %luMHz, Hclk = %luMHz, Pclk = %luMHz ",
-	       get_FCLK() / 1000000, get_HCLK() / 1000000,
-	       get_PCLK() / 1000000);
-
-	if (OTHERS_REG & 0x80)
-		printf("(SYNC Mode) \n");
-	else
-		printf("(ASYNC Mode) \n");
-	return 0;
-}
diff --git a/arch/arm/cpu/arm1176/s3c64xx/timer.c b/arch/arm/cpu/arm1176/s3c64xx/timer.c
deleted file mode 100644
index f16a37b53c..0000000000
--- a/arch/arm/cpu/arm1176/s3c64xx/timer.c
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
- * (C) Copyright 2003
- * Texas Instruments <www.ti.com>
- *
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Marius Groeger <mgroeger@sysgo.de>
- *
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Alex Zuepke <azu@sysgo.de>
- *
- * (C) Copyright 2002-2004
- * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
- *
- * (C) Copyright 2004
- * Philippe Robin, ARM Ltd. <philippe.robin@arm.com>
- *
- * (C) Copyright 2008
- * Guennadi Liakhovetki, DENX Software Engineering, <lg@denx.de>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <asm/proc-armv/ptrace.h>
-#include <asm/arch/s3c6400.h>
-#include <div64.h>
-
-static ulong timer_load_val;
-
-#define PRESCALER	167
-
-static s3c64xx_timers *s3c64xx_get_base_timers(void)
-{
-	return (s3c64xx_timers *)ELFIN_TIMER_BASE;
-}
-
-/* macro to read the 16 bit timer */
-static inline ulong read_timer(void)
-{
-	s3c64xx_timers *const timers = s3c64xx_get_base_timers();
-
-	return timers->TCNTO4;
-}
-
-/* Internal tick units */
-/* Last decremneter snapshot */
-static unsigned long lastdec;
-/* Monotonic incrementing timer */
-static unsigned long long timestamp;
-
-int timer_init(void)
-{
-	s3c64xx_timers *const timers = s3c64xx_get_base_timers();
-
-	/* use PWM Timer 4 because it has no output */
-	/*
-	 * We use the following scheme for the timer:
-	 * Prescaler is hard fixed at 167, divider at 1/4.
-	 * This gives at PCLK frequency 66MHz approx. 10us ticks
-	 * The timer is set to wrap after 100s, at 66MHz this obviously
-	 * happens after 10,000,000 ticks. A long variable can thus
-	 * keep values up to 40,000s, i.e., 11 hours. This should be
-	 * enough for most uses:-) Possible optimizations: select a
-	 * binary-friendly frequency, e.g., 1ms / 128. Also calculate
-	 * the prescaler automatically for other PCLK frequencies.
-	 */
-	timers->TCFG0 = PRESCALER << 8;
-	if (timer_load_val == 0) {
-		timer_load_val = get_PCLK() / PRESCALER * (100 / 4); /* 100s */
-		timers->TCFG1 = (timers->TCFG1 & ~0xf0000) | 0x20000;
-	}
-
-	/* load value for 10 ms timeout */
-	lastdec = timers->TCNTB4 = timer_load_val;
-	/* auto load, manual update of Timer 4 */
-	timers->TCON = (timers->TCON & ~0x00700000) | TCON_4_AUTO |
-		TCON_4_UPDATE;
-
-	/* auto load, start Timer 4 */
-	timers->TCON = (timers->TCON & ~0x00700000) | TCON_4_AUTO | COUNT_4_ON;
-	timestamp = 0;
-
-	return 0;
-}
-
-/*
- * timer without interrupts
- */
-
-/*
- * This function is derived from PowerPC code (read timebase as long long).
- * On ARM it just returns the timer value.
- */
-unsigned long long get_ticks(void)
-{
-	ulong now = read_timer();
-
-	if (lastdec >= now) {
-		/* normal mode */
-		timestamp += lastdec - now;
-	} else {
-		/* we have an overflow ... */
-		timestamp += lastdec + timer_load_val - now;
-	}
-	lastdec = now;
-
-	return timestamp;
-}
-
-/*
- * This function is derived from PowerPC code (timebase clock frequency).
- * On ARM it returns the number of timer ticks per second.
- */
-ulong get_tbclk(void)
-{
-	/* We overrun in 100s */
-	return (ulong)(timer_load_val / 100);
-}
-
-ulong get_timer_masked(void)
-{
-	unsigned long long res = get_ticks();
-	do_div (res, (timer_load_val / (100 * CONFIG_SYS_HZ)));
-	return res;
-}
-
-ulong get_timer(ulong base)
-{
-	return get_timer_masked() - base;
-}
-
-void __udelay(unsigned long usec)
-{
-	unsigned long long tmp;
-	ulong tmo;
-
-	tmo = (usec + 9) / 10;
-	tmp = get_ticks() + tmo;	/* get current timestamp */
-
-	while (get_ticks() < tmp)/* loop till event */
-		 /*NOP*/;
-}