arm: Remove OMAP2420H4 and all omap24xx support

The omap2420H4 was the only mainline omap24xx board.  Prior to being
fixed by Jon Hunter in time for v2013.04 it had been functionally broken
for a very long time.  Remove this board as there's not been interest in
it in U-Boot for quite a long time.

Signed-off-by: Tom Rini <trini@ti.com>

1 files changed, 0 insertions, 362 deletions

diff --git a/board/ti/omap2420h4/mem.c b/board/ti/omap2420h4/mem.c
deleted file mode 100644
index b083238..0000000
--- a/board/ti/omap2420h4/mem.c
+++ /dev/null
@@ -1,362 +0,0 @@
-/*
- * (C) Copyright 2004
- * Texas Instruments, <www.ti.com>
- * Richard Woodruff <r-woodruff2@ti.com>
- *
- * 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/arch/omap2420.h>
-#include <asm/io.h>
-#include <asm/arch/bits.h>
-#include <asm/arch/mux.h>
-#include <asm/arch/mem.h>
-#include <asm/arch/clock.h>
-#include <asm/arch/sys_proto.h>
-#include <asm/arch/sys_info.h>
-
-/************************************************************
- * sdelay() - simple spin loop.  Will be constant time as
- *  its generally used in 12MHz bypass conditions only.  This
- *  is necessary until timers are accessible.
- *
- *  not inline to increase chances its in cache when called
- *************************************************************/
-void sdelay (unsigned long loops)
-{
-	__asm__ volatile ("1:\n" "subs %0, %1, #1\n"
-		"bne 1b":"=r" (loops):"0" (loops));
-}
-
-/*********************************************************************************
- * prcm_init() - inits clocks for PRCM as defined in clocks.h (config II default).
- *   -- called from SRAM, or Flash (using temp SRAM stack).
- *********************************************************************************/
-void prcm_init(void)
-{
-	u32 div;
-	void (*f_lock_pll) (u32, u32, u32, u32);
-	extern void *_end_vect, *_start;
-
-	f_lock_pll = (void *)((u32)&_end_vect - (u32)&_start + SRAM_VECT_CODE);
-
-	__raw_writel(0, CM_FCLKEN1_CORE);	   /* stop all clocks to reduce ringing */
-	__raw_writel(0, CM_FCLKEN2_CORE);	   /* may not be necessary */
-	__raw_writel(0, CM_ICLKEN1_CORE);
-	__raw_writel(0, CM_ICLKEN2_CORE);
-
-	__raw_writel(DPLL_OUT, CM_CLKSEL2_PLL);	/* set DPLL out */
-	__raw_writel(MPU_DIV, CM_CLKSEL_MPU);	/* set MPU divider */
-	__raw_writel(DSP_DIV, CM_CLKSEL_DSP);	/* set dsp and iva dividers */
-	__raw_writel(GFX_DIV, CM_CLKSEL_GFX);	/* set gfx dividers */
-
-	div = BUS_DIV;
-	__raw_writel(div, CM_CLKSEL1_CORE);/* set L3/L4/USB/Display/Vlnc/SSi dividers */
-	sdelay(1000);
-
-	if(running_in_sram()){
-		/* If running fully from SRAM this is OK.  The Flash bus drops out for just a little.
-		* but then comes back.  If running from Flash this sequence kills you, thus you need
-		* to run it using CONFIG_PARTIAL_SRAM.
-		*/
-		__raw_writel(MODE_BYPASS_FAST, CM_CLKEN_PLL); /* go to bypass, fast relock */
-		wait_on_value(BIT0|BIT1, BIT0, CM_IDLEST_CKGEN, LDELAY); /* wait till in bypass */
-		sdelay(1000);
-		/* set clock selection and dpll dividers. */
-		__raw_writel(DPLL_VAL, CM_CLKSEL1_PLL);	 /* set pll for target rate */
-		__raw_writel(COMMIT_DIVIDERS, PRCM_CLKCFG_CTRL); /* commit dividers */
-		sdelay(10000);
-		__raw_writel(DPLL_LOCK, CM_CLKEN_PLL); /* enable dpll */
-		sdelay(10000);
-		wait_on_value(BIT0|BIT1, BIT1, CM_IDLEST_CKGEN, LDELAY);  /*wait for dpll lock */
-	}else if(running_in_flash()){
-		/* if running from flash, need to jump to small relocated code area in SRAM.
-		 * This is the only safe spot to do configurations from.
-		 */
-		(*f_lock_pll)(PRCM_CLKCFG_CTRL, CM_CLKEN_PLL, DPLL_LOCK, CM_IDLEST_CKGEN);
-	}
-
-	__raw_writel(DPLL_LOCK|APLL_LOCK, CM_CLKEN_PLL);   /* enable apll */
-	wait_on_value(BIT8, BIT8, CM_IDLEST_CKGEN, LDELAY);	/* wait for apll lock */
-	sdelay(1000);
-}
-
-/**************************************************************************
- * make_cs1_contiguous() - for es2 and above remap cs1 behind cs0 to allow
- *  command line mem=xyz use all memory with out discontigious support
- *  compiled in.  Could do it at the ATAG, but there really is two banks...
- * Called as part of 2nd phase DDR init.
- **************************************************************************/
-void make_cs1_contiguous(void)
-{
-	u32 size, a_add_low, a_add_high;
-
-	size = get_sdr_cs_size(SDRC_CS0_OSET);
-	size /= SZ_32M;  /* find size to offset CS1 */
-	a_add_high = (size & 3) << 8;   /* set up low field */
-	a_add_low = (size & 0x3C) >> 2; /* set up high field */
-	__raw_writel((a_add_high|a_add_low),SDRC_CS_CFG);
-
-}
-
-/********************************************************
- *  mem_ok() - test used to see if timings are correct
- *             for a part. Helps in gussing which part
- *             we are currently using.
- *******************************************************/
-u32 mem_ok(void)
-{
-	u32 val1, val2;
-	u32 pattern = 0x12345678;
-
-	__raw_writel(0x0,OMAP2420_SDRC_CS0+0x400);   /* clear pos A */
-	__raw_writel(pattern, OMAP2420_SDRC_CS0);    /* pattern to pos B */
-	__raw_writel(0x0,OMAP2420_SDRC_CS0+4);       /* remove pattern off the bus */
-	val1 = __raw_readl(OMAP2420_SDRC_CS0+0x400); /* get pos A value */
-	val2 = __raw_readl(OMAP2420_SDRC_CS0);       /* get val2 */
-
-	if ((val1 != 0) || (val2 != pattern))        /* see if pos A value changed*/
-		return(0);
-	else
-		return(1);
-}
-
-
-/********************************************************
- *  sdrc_init() - init the sdrc chip selects CS0 and CS1
- *  - early init routines, called from flash or
- *  SRAM.
- *******************************************************/
-void sdrc_init(void)
-{
-	#define EARLY_INIT 1
-	do_sdrc_init(SDRC_CS0_OSET, EARLY_INIT);  /* only init up first bank here */
-}
-
-/*************************************************************************
- * do_sdrc_init(): initialize the SDRAM for use.
- *  -called from low level code with stack only.
- *  -code sets up SDRAM timing and muxing for 2422 or 2420.
- *  -optimal settings can be placed here, or redone after i2c
- *      inspection of board info
- *
- *  This is a bit ugly, but should handle all memory moduels
- *   used with the H4. The first time though this code from s_init()
- *   we configure the first chip select.  Later on we come back and
- *   will configure the 2nd chip select if it exists.
- *
- **************************************************************************/
-void do_sdrc_init(u32 offset, u32 early)
-{
-	u32 cpu, dllen=0, rev, common=0, cs0=0, pmask=0, pass_type, mtype;
-	sdrc_data_t *sdata;	 /* do not change type */
-	u32 a, b, r;
-
-	static const sdrc_data_t sdrc_2422 =
-	{
-		H4_2422_SDRC_SHARING, H4_2422_SDRC_MDCFG_0_DDR, 0 , H4_2422_SDRC_ACTIM_CTRLA_0,
-		H4_2422_SDRC_ACTIM_CTRLB_0, H4_2422_SDRC_RFR_CTRL, H4_2422_SDRC_MR_0_DDR,
-		0, H4_2422_SDRC_DLLAB_CTRL
-	};
-	static const sdrc_data_t sdrc_2420 =
-	{
-		H4_2420_SDRC_SHARING, H4_2420_SDRC_MDCFG_0_DDR, H4_2420_SDRC_MDCFG_0_SDR,
-		H4_2420_SDRC_ACTIM_CTRLA_0, H4_2420_SDRC_ACTIM_CTRLB_0,
-		H4_2420_SDRC_RFR_CTRL, H4_2420_SDRC_MR_0_DDR, H4_2420_SDRC_MR_0_SDR,
-		H4_2420_SDRC_DLLAB_CTRL
-	};
-
-	if (offset == SDRC_CS0_OSET)
-		cs0 = common = 1;  /* int regs shared between both chip select */
-
-	cpu = get_cpu_type();
-	rev = get_cpu_rev();
-
-	/* warning generated, though code generation is correct. this may bite later,
-	 * but is ok for now. there is only so much C code you can do on stack only
-	 * operation.
-	 */
-	if (cpu == CPU_2422){
-		sdata = (sdrc_data_t *)&sdrc_2422;
-		pass_type = STACKED;
-	} else{
-		sdata = (sdrc_data_t *)&sdrc_2420;
-		pass_type = IP_DDR;
-	}
-
-	__asm__ __volatile__("": : :"memory");  /* limit compiler scope */
-
-	if (!early && (((mtype = get_mem_type()) == DDR_COMBO)||(mtype == DDR_STACKED))) {
-		if(mtype == DDR_COMBO){
-			pmask = BIT2;/* combo part has a shared CKE signal, can't use feature */
-			pass_type = COMBO_DDR; /* CS1 config */
-			__raw_writel((__raw_readl(SDRC_POWER)) & ~pmask, SDRC_POWER);
-		}
-		if(rev != CPU_2420_2422_ES1)	/* for es2 and above smooth things out */
-			make_cs1_contiguous();
-	}
-
-next_mem_type:
-	if (common) {	/* do a SDRC reset between types to clear regs*/
-		__raw_writel(SOFTRESET, SDRC_SYSCONFIG);	/* reset sdrc */
-		wait_on_value(BIT0, BIT0, SDRC_STATUS, 12000000);/* wait till reset done set */
-		__raw_writel(0, SDRC_SYSCONFIG);		/* clear soft reset */
-		__raw_writel(sdata->sdrc_sharing, SDRC_SHARING);
-#ifdef POWER_SAVE
-		__raw_writel(__raw_readl(SMS_SYSCONFIG)|SMART_IDLE, SMS_SYSCONFIG);
-		__raw_writel(sdata->sdrc_sharing|SMART_IDLE, SDRC_SHARING);
-		__raw_writel((__raw_readl(SDRC_POWER)|BIT6), SDRC_POWER);
-#endif
-	}
-
-	if ((pass_type == IP_DDR) || (pass_type == STACKED)) /* (IP ddr-CS0),(2422-CS0/CS1) */
-		__raw_writel(sdata->sdrc_mdcfg_0_ddr, SDRC_MCFG_0+offset);
-	else if (pass_type == COMBO_DDR){ /* (combo-CS0/CS1) */
-		__raw_writel(H4_2420_COMBO_MDCFG_0_DDR,SDRC_MCFG_0+offset);
-	} else if (pass_type == IP_SDR){ /* ip sdr-CS0 */
-		__raw_writel(sdata->sdrc_mdcfg_0_sdr, SDRC_MCFG_0+offset);
-	}
-
-	a = sdata->sdrc_actim_ctrla_0;
-	b = sdata->sdrc_actim_ctrlb_0;
-	r = sdata->sdrc_dllab_ctrl;
-
-	/* work around ES1 DDR issues */
-	if((pass_type != IP_SDR) && (rev == CPU_2420_2422_ES1)){
-		a = H4_242x_SDRC_ACTIM_CTRLA_0_ES1;
-		b = H4_242x_SDRC_ACTIM_CTRLB_0_ES1;
-		r = H4_242x_SDRC_RFR_CTRL_ES1;
-	}
-
-	if (cs0) {
-		__raw_writel(a, SDRC_ACTIM_CTRLA_0);
-		__raw_writel(b, SDRC_ACTIM_CTRLB_0);
-	} else {
-		__raw_writel(a, SDRC_ACTIM_CTRLA_1);
-		__raw_writel(b, SDRC_ACTIM_CTRLB_1);
-	}
-	__raw_writel(r, SDRC_RFR_CTRL+offset);
-
-	/* init sequence for mDDR/mSDR using manual commands (DDR is a bit different) */
-	__raw_writel(CMD_NOP, SDRC_MANUAL_0+offset);
-	sdelay(5000);  /* susposed to be 100us per design spec for mddr/msdr */
-	__raw_writel(CMD_PRECHARGE, SDRC_MANUAL_0+offset);
-	__raw_writel(CMD_AUTOREFRESH, SDRC_MANUAL_0+offset);
-	__raw_writel(CMD_AUTOREFRESH, SDRC_MANUAL_0+offset);
-
-	/*
-	 * CSx SDRC Mode Register
-	 * Burst length = (4 - DDR) (2-SDR)
-	 * Serial mode
-	 * CAS latency = x
-	 */
-	if(pass_type == IP_SDR)
-		__raw_writel(sdata->sdrc_mr_0_sdr, SDRC_MR_0+offset);
-	else
-		__raw_writel(sdata->sdrc_mr_0_ddr, SDRC_MR_0+offset);
-
-	/* NOTE: ES1 242x _BUG_ DLL + External Bandwidth fix*/
-	if (rev == CPU_2420_2422_ES1){
-		dllen = (BIT0|BIT3); /* es1 clear both bit0 and bit3 */
-		__raw_writel((__raw_readl(SMS_CLASS_ARB0)|BURSTCOMPLETE_GROUP7)
-			,SMS_CLASS_ARB0);/* enable bust complete for lcd */
-	}
-	else
-		dllen = BIT0|BIT1; /* es2, clear bit0, and 1 (set phase to 72) */
-
-	/* enable & load up DLL with good value for 75MHz, and set phase to 90
-	 * ES1 recommends 90 phase, ES2 recommends 72 phase.
-	 */
-	if (common && (pass_type != IP_SDR)) {
-		__raw_writel(sdata->sdrc_dllab_ctrl, SDRC_DLLA_CTRL);
-		__raw_writel(sdata->sdrc_dllab_ctrl & ~(BIT2|dllen), SDRC_DLLA_CTRL);
-		__raw_writel(sdata->sdrc_dllab_ctrl, SDRC_DLLB_CTRL);
-		__raw_writel(sdata->sdrc_dllab_ctrl & ~(BIT2|dllen) , SDRC_DLLB_CTRL);
-	}
-	sdelay(90000);
-
-	if(mem_ok())
-		return; /* STACKED, other configued type */
-	++pass_type; /* IPDDR->COMBODDR->IPSDR for CS0 */
-	goto next_mem_type;
-}
-
-/*****************************************************
- * gpmc_init(): init gpmc bus
- * Init GPMC for x16, MuxMode (SDRAM in x32).
- * This code can only be executed from SRAM or SDRAM.
- *****************************************************/
-void gpmc_init(void)
-{
-	u32 mux=0, mtype, mwidth, rev, tval;
-
-	rev  = get_cpu_rev();
-	if (rev == CPU_2420_2422_ES1)
-		tval = 1;
-	else
-		tval = 0;  /* disable bit switched meaning */
-
-	/* global settings */
-	__raw_writel(0x10, GPMC_SYSCONFIG);	/* smart idle */
-	__raw_writel(0x0, GPMC_IRQENABLE);	/* isr's sources masked */
-	__raw_writel(tval, GPMC_TIMEOUT_CONTROL);/* timeout disable */
-#ifdef CONFIG_SYS_NAND_BOOT
-	__raw_writel(0x001, GPMC_CONFIG);	/* set nWP, disable limited addr */
-#else
-	__raw_writel(0x111, GPMC_CONFIG);	/* set nWP, disable limited addr */
-#endif
-
-	/* discover bus connection from sysboot */
-	if (is_gpmc_muxed() == GPMC_MUXED)
-		mux = BIT9;
-	mtype = get_gpmc0_type();
-	mwidth = get_gpmc0_width();
-
-	/* setup cs0 */
-	__raw_writel(0x0, GPMC_CONFIG7_0);	/* disable current map */
-	sdelay(1000);
-
-#ifdef CONFIG_SYS_NAND_BOOT
-	__raw_writel(H4_24XX_GPMC_CONFIG1_0|mtype|mwidth, GPMC_CONFIG1_0);
-#else
-	__raw_writel(H4_24XX_GPMC_CONFIG1_0|mux|mtype|mwidth, GPMC_CONFIG1_0);
-#endif
-
-#ifdef PRCM_CONFIG_III
-	__raw_writel(H4_24XX_GPMC_CONFIG2_0, GPMC_CONFIG2_0);
-#endif
-	__raw_writel(H4_24XX_GPMC_CONFIG3_0, GPMC_CONFIG3_0);
-	__raw_writel(H4_24XX_GPMC_CONFIG4_0, GPMC_CONFIG4_0);
-#ifdef PRCM_CONFIG_III
-	__raw_writel(H4_24XX_GPMC_CONFIG5_0, GPMC_CONFIG5_0);
-	__raw_writel(H4_24XX_GPMC_CONFIG6_0, GPMC_CONFIG6_0);
-#endif
-	__raw_writel(H4_24XX_GPMC_CONFIG7_0, GPMC_CONFIG7_0);/* enable new mapping */
-	sdelay(2000);
-
-	/* setup cs1 */
-	__raw_writel(0, GPMC_CONFIG7_1); /* disable any mapping */
-	sdelay(1000);
-	__raw_writel(H4_24XX_GPMC_CONFIG1_1|mux, GPMC_CONFIG1_1);
-	__raw_writel(H4_24XX_GPMC_CONFIG2_1, GPMC_CONFIG2_1);
-	__raw_writel(H4_24XX_GPMC_CONFIG3_1, GPMC_CONFIG3_1);
-	__raw_writel(H4_24XX_GPMC_CONFIG4_1, GPMC_CONFIG4_1);
-	__raw_writel(H4_24XX_GPMC_CONFIG5_1, GPMC_CONFIG5_1);
-	__raw_writel(H4_24XX_GPMC_CONFIG6_1, GPMC_CONFIG6_1);
-	__raw_writel(H4_24XX_GPMC_CONFIG7_1, GPMC_CONFIG7_1); /* enable mapping */
-	sdelay(2000);
-}