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-rw-r--r--board/omap2420h4/config.mk4
-rw-r--r--board/omap2420h4/flash.c3
-rw-r--r--board/omap2420h4/mem.c250
-rw-r--r--board/omap2420h4/omap2420h4.c77
-rw-r--r--board/omap2420h4/platform.S47
-rw-r--r--board/omap2420h4/sys_info.c107
6 files changed, 310 insertions, 178 deletions
diff --git a/board/omap2420h4/config.mk b/board/omap2420h4/config.mk
index 4f14be8..f2a533e 100644
--- a/board/omap2420h4/config.mk
+++ b/board/omap2420h4/config.mk
@@ -14,12 +14,10 @@
# (mem base + reserved)
# For use with external or internal boots.
-# CONFIG_PARTIAL_SRAM must be defined to use this.
TEXT_BASE = 0x80e80000
# Used with full SRAM boot.
# This is either with a GP system or a signed boot image.
# easiest, and safest way to go if you can.
-# Comment out CONFIG_PARTIAL_SRAM for this one.
-#
#TEXT_BASE = 0x40280000
+
diff --git a/board/omap2420h4/flash.c b/board/omap2420h4/flash.c
index 3b6a69f..d5e106a 100644
--- a/board/omap2420h4/flash.c
+++ b/board/omap2420h4/flash.c
@@ -119,6 +119,7 @@ unsigned long flash_init (void)
size += flash_info[i].size;
}
+#ifdef CFG_ENV_IS_IN_FLASH
/* Protect monitor and environment sectors
*/
flash_protect (FLAG_PROTECT_SET,
@@ -128,7 +129,7 @@ unsigned long flash_init (void)
flash_protect (FLAG_PROTECT_SET,
CFG_ENV_ADDR,
CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0]);
-
+#endif
return size;
}
diff --git a/board/omap2420h4/mem.c b/board/omap2420h4/mem.c
index 5e23d61..3ce38cc 100644
--- a/board/omap2420h4/mem.c
+++ b/board/omap2420h4/mem.c
@@ -38,9 +38,8 @@
*************************************************************/
void sdelay (unsigned long loops)
{
- __asm__ volatile ("1:\n"
- "subs %0, %1, #1\n"
- "bne 1b":"=r" (loops):"0" (loops));
+ __asm__ volatile ("1:\n" "subs %0, %1, #1\n"
+ "bne 1b":"=r" (loops):"0" (loops));
}
/*********************************************************************************
@@ -50,12 +49,10 @@ void sdelay (unsigned long loops)
void prcm_init(void)
{
u32 rev,div;
-#ifdef CONFIG_PARTIAL_SRAM
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);
-#endif
__raw_writel(0, CM_FCLKEN1_CORE); /* stop all clocks to reduce ringing */
__raw_writel(0, CM_FCLKEN2_CORE); /* may not be necessary */
@@ -75,45 +72,33 @@ void prcm_init(void)
__raw_writel(div, CM_CLKSEL1_CORE);/* set L3/L4/USB/Display/Vlnc/SSi dividers */
sdelay(1000);
-#ifndef CONFIG_PARTIAL_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, BIT1, CM_IDLEST_CKGEN, LDELAY); /* wait till in bypass */
-
- /* 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, BIT2, CM_IDLEST_CKGEN, LDELAY); /*wait for dpll lock */
-#else
-/* 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);
-#endif
+ 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);
}
-/***********************************************
- * memif_init() - init the gpmc and sdrc
- * - early init routines, called from flash or
- * SRAM.
- ***********************************************/
-void memif_init(void)
-{
- sdrc_init();
-#ifndef CONFIG_PARTIAL_SRAM /* don't init if calling from flash */
- gpmc_init();
-#endif
-}
/********************************************************
* mem_ok() - test used to see if timings are correct
@@ -121,11 +106,17 @@ void memif_init(void)
* we are currently using.
*******************************************************/
u32 mem_ok(void)
-{ u32 val;
- __raw_writel(0x0,OMAP2420_SDRC_CS0+0x400); /* clear pos A */
- __raw_writel(0x12345678, OMAP2420_SDRC_CS0);/* pattern to pos B */
- val = __raw_readl(OMAP2420_SDRC_CS0+0x400); /* get pos A value */
- if (val != 0) /* see if pos A value changed*/
+{
+ 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);
@@ -142,122 +133,157 @@ void sdrc_init(void)
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
*
- * !!! When ES1 comes out need to conditionalize RFR value!!!
- **********************************************************/
+ * 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, bug=0, rev, shared=0, cs0=0, pmask=0,first=1;
+ u32 cpu, bug=0, rev, common=0, cs0=0, pmask=0, pass_type;
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, H4_2422_SDRC_ACTIM_CTRLA_0,
- H4_2422_SDRC_ACTIM_CTRLB_0, H4_2422_SDRC_RFR_CTRL_ES1, H4_2422_SDRC_MR_0,
- H4_2422_SDRC_DLLA_CTRL, H4_2422_SDRC_DLLB_CTRL
+ 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_ES1, H4_2422_SDRC_MR_0_DDR,
+ 0, H4_2422_SDRC_DLLA_CTRL, H4_2422_SDRC_DLLB_CTRL
};
static const sdrc_data_t sdrc_2420 =
{
- H4_2420_SDRC_SHARING, H4_2420_SDRC_MDCFG_0, H4_2420_SDRC_ACTIM_CTRLA_0,
- H4_2420_SDRC_ACTIM_CTRLB_0, H4_2420_SDRC_RFR_CTRL_ES1, H4_2420_SDRC_MR_0,
+ 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_ES1, H4_2420_SDRC_MR_0_DDR, H4_2420_SDRC_MR_0_SDR,
H4_2420_SDRC_DLLA_CTRL, H4_2420_SDRC_DLLB_CTRL
};
if (offset == SDRC_CS0_OSET)
- cs0 = shared = 1; /* int regs shared between both chip select */
+ cs0 = common = 1; /* int regs shared between both chip select */
cpu = get_cpu_type();
- /* 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.
+ /* 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_2422;
- else
- sdata = &sdrc_2420;
- __asm__ __volatile__("": : :"memory");
-#ifdef CONFIG_PARTIAL_SRAM
- /* u-boot is compiled to run in DDR at 8xxxxxxx. If we use data here which is not pc relative
- * we need to get the address correct. We need to find the current flash mapping to dress up
- * the initial pointer load. As long as this is const data we should be ok.
- */
- if(early)
- sdata = (sdrc_data_t *)(((u32)sdata & 0x0003FFFF) | get_gpmc0_base());
-#endif
+ if (cpu == CPU_2422){
+ sdata = (sdrc_data_t *)&sdrc_2422;
+ pass_type = STACKED;
+ }
+ else{
+ sdata = (sdrc_data_t *)&sdrc_2420;
+ pass_type = IP_DDR;
+ }
- men_combo:
+ __asm__ __volatile__("": : :"memory"); /* limit compiler scope */
- if (!early && get_mem_type() == DDR_COMBO) { /* combo part has a shared CKE signal, can't use feature */
+ /* u-boot is compiled to run in DDR or SRAM at 8xxxxxxx or 4xxxxxxx.
+ * If we are running in flash prior to relocation and we use data
+ * here which is not pc relative we need to get the address correct.
+ * We need to find the current flash mapping to dress up the initial
+ * pointer load. As long as this is const data we should be ok.
+ */
+ if((early) && running_in_flash()){
+ sdata = (sdrc_data_t *)(((u32)sdata & 0x0003FFFF) | get_gpmc0_base());
+ /* NOR internal boot offset is 0x4000 from xloader signature */
+ if(running_from_internal_boot())
+ sdata = (sdrc_data_t *)((u32)sdata + 0x4000);
+ }
+ if (!early && (get_mem_type() == DDR_COMBO)) {/* combo part has a shared CKE signal, can't use feature */
pmask = BIT2;
- first = 0; /* trigger ddr_combo init */
+ pass_type = COMBO_DDR; /* CS1 config */
}
- if (shared) {
- __raw_writel(__raw_readl(SMS_SYSCONFIG)|SMART_IDLE, SMS_SYSCONFIG);
- __raw_writel(SMART_IDLE|SOFTRESET, SDRC_SYSCONFIG); /* reset sdrc */
- wait_on_value(BIT0, BIT0, SDRC_STATUS, 12000000); /* wait till reset done set */
- __raw_writel(SMART_IDLE, SDRC_SYSCONFIG); /* clear soft reset */
+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);
- __raw_writel((__raw_readl(SDRC_POWER)|SMART_IDLE) & ~pmask, SDRC_POWER);
+ __raw_writel((__raw_readl(SDRC_POWER)) & ~pmask, SDRC_POWER);
+#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) & ~pmask, 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);
}
- if (first)
- __raw_writel(sdata->sdrc_mdcfg_0, SDRC_MCFG_0+offset);
- else {
- __raw_writel((__raw_readl(SDRC_POWER)|SMART_IDLE) & ~pmask, SDRC_POWER);
- __raw_writel(H4_2420_COMBO_MDCFG_0,SDRC_MCFG_0+offset);
+
+ if(pass_type == IP_SDR){ /* SDRAM can run full speed only rated for 105MHz*/
+ a = H4_242X_SDRC_ACTIM_CTRLA_0_100MHz;
+ b = H4_242X_SDRC_ACTIM_CTRLB_0_100MHz;
+ r = H4_2420_SDRC_RFR_CTRL;
+ } else {
+ a = sdata->sdrc_actim_ctrla_0;
+ b = sdata->sdrc_actim_ctrlb_0;
+ r = sdata->sdrc_rfr_ctrl;
}
if (cs0) {
- __raw_writel(sdata->sdrc_actim_ctrla_0, SDRC_ACTIM_CTRLA_0);
- __raw_writel(sdata->sdrc_actim_ctrlb_0, SDRC_ACTIM_CTRLB_0);
+ __raw_writel(a, SDRC_ACTIM_CTRLA_0);
+ __raw_writel(b, SDRC_ACTIM_CTRLB_0);
} else {
- __raw_writel(sdata->sdrc_actim_ctrla_0, SDRC_ACTIM_CTRLA_1);
- __raw_writel(sdata->sdrc_actim_ctrlb_0, SDRC_ACTIM_CTRLB_1);
+ __raw_writel(a, SDRC_ACTIM_CTRLA_1);
+ __raw_writel(b, SDRC_ACTIM_CTRLB_1);
}
- __raw_writel(sdata->sdrc_rfr_ctrl, SDRC_RFR_CTRL+offset);
+ __raw_writel(r, SDRC_RFR_CTRL+offset);
- /* init sequence for _mDDR_ using manual commands (DDR is a bit different) */
+ /* 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*/
+ 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 memory
+ * Burst length = (4 - DDR) (2-SDR)
* Serial mode
* CAS latency = x
*/
- __raw_writel(sdata->sdrc_mr_0, SDRC_MR_0+offset);
+ 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 */
+ /* NOTE: ES1 242x _BUG_ DLL + External Bandwidth fix*/
rev = get_cpu_rev();
- if (rev == CPU_2420_ES1 || rev == CPU_2422_ES1)
+ if (rev == CPU_2420_ES1 || rev == CPU_2422_ES1){
bug = BIT0;
+ __raw_writel((__raw_readl(SMS_CLASS_ARB0)|BURSTCOMPLETE_GROUP7)
+ ,SMS_CLASS_ARB0);/* enable bust complete for lcd */
+ }
/* enable & load up DLL with good value for 75MHz, and set phase to 90% */
- if (shared) {
+ if (common && (pass_type != IP_SDR)) {
__raw_writel(sdata->sdrc_dlla_ctrl, SDRC_DLLA_CTRL);
__raw_writel(sdata->sdrc_dlla_ctrl & ~(BIT2|bug), SDRC_DLLA_CTRL);
__raw_writel(sdata->sdrc_dllb_ctrl, SDRC_DLLB_CTRL);
__raw_writel(sdata->sdrc_dllb_ctrl & ~(BIT2|bug) , SDRC_DLLB_CTRL);
}
- sdelay(9000);
- if (!first || mem_ok()) /* passed test or 2nd bank init */
- return;
- else {
- first = 0;
- goto men_combo;
- }
-}
+ 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
@@ -272,7 +298,11 @@ void gpmc_init(void)
__raw_writel(0x10, GPMC_SYSCONFIG); /* smart idle */
__raw_writel(0x0, GPMC_IRQENABLE); /* isr's sources masked */
__raw_writel(0x1, GPMC_TIMEOUT_CONTROL);/* timeout disable */
+#ifdef CFG_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)
@@ -283,11 +313,22 @@ void gpmc_init(void)
/* setup cs0 */
__raw_writel(0x0, GPMC_CONFIG7_0); /* disable current map */
sdelay(1000);
+
+#ifdef CFG_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);
- /* __raw_writel(H4_24XX_GPMC_CONFIG2_0, GPMC_CONFIG2_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);
- /* __raw_writel(H4_24XX_GPMC_CONFIG5_0, GPMC_CONFIG5_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);
@@ -303,3 +344,4 @@ void gpmc_init(void)
__raw_writel(H4_24XX_GPMC_CONFIG7_1, GPMC_CONFIG7_1); /* enable mapping */
sdelay(2000);
}
+
diff --git a/board/omap2420h4/omap2420h4.c b/board/omap2420h4/omap2420h4.c
index bf398f6..697dfef 100644
--- a/board/omap2420h4/omap2420h4.c
+++ b/board/omap2420h4/omap2420h4.c
@@ -31,6 +31,11 @@
#include <asm/arch/mem.h>
#include <i2c.h>
#include <asm/mach-types.h>
+#if (CONFIG_COMMANDS & CFG_CMD_NAND)
+#include <linux/mtd/nand.h>
+extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
+#endif
+
static void wait_for_command_complete(unsigned int wd_base);
@@ -40,9 +45,8 @@ static void wait_for_command_complete(unsigned int wd_base);
******************************************************/
static inline void delay (unsigned long loops)
{
- __asm__ volatile ("1:\n"
- "subs %0, %1, #1\n"
- "bne 1b":"=r" (loops):"0" (loops));
+ __asm__ volatile ("1:\n" "subs %0, %1, #1\n"
+ "bne 1b":"=r" (loops):"0" (loops));
}
/*****************************************
@@ -52,11 +56,9 @@ static inline void delay (unsigned long loops)
int board_init (void)
{
DECLARE_GLOBAL_DATA_PTR;
-#ifndef CONFIG_PARTIAL_SRAM
- s_init(0x0); /* full sram build, never skip clock and sdrc, no point */
-#else
- gpmc_init();
-#endif
+
+ gpmc_init(); /* in SRAM or SDRM, finish GPMC */
+
gd->bd->bi_arch_number = MACH_TYPE_OMAP_H4; /* board id for linux */
gd->bd->bi_boot_params = (OMAP2420_SDRC_CS0+0x100); /* adress of boot parameters */
@@ -66,23 +68,23 @@ int board_init (void)
/**********************************************************
* Routine: s_init
* Description: Does early system init of muxing and clocks.
- * - Called at time when only stack is available.
+ * - Called path is with sram stack.
**********************************************************/
-void s_init(int skip)
+void s_init(void)
{
+ int in_sdram = running_in_sdram();
+
watchdog_init();
set_muxconf_regs();
delay(100);
- if (!skip)
+ if(!in_sdram)
prcm_init();
peripheral_enable();
icache_enable();
-#ifndef CONFIG_APTIX
- if (!skip)
- memif_init();
-#endif
+ if (!in_sdram)
+ sdrc_init();
}
/*******************************************************
@@ -102,7 +104,7 @@ int misc_init_r (void)
void watchdog_init(void)
{
int mode;
-#define GP (BIT8|BIT9)
+ #define GP (BIT8|BIT9)
/* There are 4 watch dogs. 1 secure, and 3 general purpose.
* I would expect that the ROM takes care of the secure one,
@@ -152,6 +154,8 @@ void ether_init (void)
#ifdef CONFIG_DRIVER_LAN91C96
int cnt = 20;
+ __raw_writeb(0x3,OMAP2420_CTRL_BASE+0x10a); /*protect->gpio95 */
+
__raw_writew(0x0, LAN_RESET_REGISTER);
do {
__raw_writew(0x1, LAN_RESET_REGISTER);
@@ -189,7 +193,9 @@ int dram_init (void)
DECLARE_GLOBAL_DATA_PTR;
unsigned int size0=0,size1=0;
u32 mtype, btype;
-#define NOT_EARLY 0
+ u8 chg_on = 0x5; /* enable charge of back up battery */
+ u8 vmode_on = 0x8C;
+ #define NOT_EARLY 0
i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE); /* need this a bit early */
@@ -197,13 +203,18 @@ int dram_init (void)
mtype = get_mem_type();
display_board_info(btype);
- if (btype == BOARD_H4_MENELAUS)
- update_mux(btype,mtype);
+ if (btype == BOARD_H4_MENELAUS){
+ update_mux(btype,mtype); /* combo part on menelaus */
+ i2c_write(I2C_MENELAUS, 0x20, 1, &chg_on, 1); /*fix POR reset bug */
+ i2c_write(I2C_MENELAUS, 0x2, 1, &vmode_on, 1); /* VCORE change on VMODE */
+ }
if ((mtype == DDR_COMBO) || (mtype == DDR_STACKED)) {
do_sdrc_init(SDRC_CS1_OSET, NOT_EARLY); /* init other chip select */
size0 = size1 = SZ_32M;
- } else
+ } else if (mtype == SDR_DISCRETE)
+ size0 = SZ_128M;
+ else
size0 = SZ_64M;
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
@@ -477,7 +488,7 @@ void muxSetupCamera(void)
/* CAMERA_RSTZ pin configuration, PIN = Y16 */
/* CAM_RST is connected through the I2C IO expander.*/
/* MuxConfigReg = (volatile unsigned char *), CONTROL_PADCONF_SYS_NRESWARM*/
- /* *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
+ /* *MuxConfigReg = 0x00 ; / * Mode = 0, PUPD=Disabled */
/* CAMERA_XCLK pin configuration, PIN = U3 */
MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_CAM_XCLK;
@@ -661,7 +672,7 @@ void muxSetupHDQ(void)
void muxSetupGPMC(void)
{
volatile uint8 *MuxConfigReg;
- volatile unsigned int *MCR = 0x4800008C;
+ volatile unsigned int *MCR = (volatile unsigned int *)0x4800008C;
/* gpmc_io_dir */
*MCR = 0x19000000;
@@ -830,3 +841,25 @@ void update_mux(u32 btype,u32 mtype)
}
}
}
+
+#if (CONFIG_COMMANDS & CFG_CMD_NAND)
+void nand_init(void)
+{
+ extern flash_info_t flash_info[];
+
+ nand_probe(CFG_NAND_ADDR);
+ if (nand_dev_desc[0].ChipID != NAND_ChipID_UNKNOWN) {
+ print_size(nand_dev_desc[0].totlen, "\n");
+ }
+
+#ifdef CFG_JFFS2_MEM_NAND
+ flash_info[CFG_JFFS2_FIRST_BANK].flash_id = nand_dev_desc[0].id;
+ flash_info[CFG_JFFS2_FIRST_BANK].size = 1024*1024*2; /* only read kernel single meg partition */
+ flash_info[CFG_JFFS2_FIRST_BANK].sector_count = 1024; /* 1024 blocks in 16meg chip (use less for raw/copied partition) */
+ flash_info[CFG_JFFS2_FIRST_BANK].start[0] = 0x80200000; /* ?, ram for now, open question, copy to RAM or adapt for NAND */
+#endif
+}
+#endif
+
+
+
diff --git a/board/omap2420h4/platform.S b/board/omap2420h4/platform.S
index dc1b443..86bf5ba 100644
--- a/board/omap2420h4/platform.S
+++ b/board/omap2420h4/platform.S
@@ -33,8 +33,6 @@
_TEXT_BASE:
.word TEXT_BASE /* sdram load addr from config.mk */
-#ifdef CONFIG_PARTIAL_SRAM
-
/**************************************************************************
* cpy_clk_code: relocates clock code into SRAM where its safer to execute
* R1 = SRAM destination address.
@@ -159,41 +157,16 @@ pll_div_add:
.word CM_CLKSEL1_PLL
pll_div_val:
.word DPLL_VAL /* DPLL setting (300MHz default) */
-#endif
.globl platformsetup
platformsetup:
- mov r3, r0 /* save skip information */
-#ifdef CONFIG_APTIX
- ldr r0, REG_SDRC_MCFG_0
- ldr r1, VAL_SDRC_MCFG_0
- str r1, [r0]
- ldr r0, REG_SDRC_MR_0
- ldr r1, VAL_SDRC_MR_0
- str r1, [r0]
- /* a ddr needs emr1 set here */
- ldr r0, REG_SDRC_SHARING
- ldr r1, VAL_SDRC_SHARING
- str r1, [r0]
- ldr r0, REG_SDRC_RFR_CTRL_0
- ldr r1, VAL_SDRC_RFR_CTRL_0
- str r1, [r0]
-
- /* little delay after init */
- mov r2, #0x1800
-1:
- subs r2, r2, #0x1
- bne 1b
-#endif
-#ifdef CONFIG_PARTIAL_SRAM
ldr sp, SRAM_STACK
str ip, [sp] /* stash old link register */
mov ip, lr /* save link reg across call */
- mov r0, r3 /* pass skip info to s_init */
bl s_init /* go setup pll,mux,memory */
ldr ip, [sp] /* restore save ip */
mov lr, ip /* restore link reg */
-#endif
+
/* map interrupt controller */
ldr r0, VAL_INTH_SETUP
mcr p15, 0, r0, c15, c2, 4
@@ -211,21 +184,3 @@ VAL_INTH_SETUP:
SRAM_STACK:
.word LOW_LEVEL_SRAM_STACK
-#ifdef CONFIG_APTIX
-REG_SDRC_SHARING:
- .word SDRC_SHARING
-REG_SDRC_MCFG_0:
- .word SDRC_MCFG_0
-REG_SDRC_MR_0:
- .word SDRC_MR_0
-REG_SDRC_RFR_CTRL_0:
- .word SDRC_RFR_CTRL
-VAL_SDRC_SHARING:
- .word VAL_H4_SDRC_SHARING
-VAL_SDRC_MCFG_0:
- .word VAL_H4_SDRC_MCFG_0
-VAL_SDRC_MR_0:
- .word VAL_H4_SDRC_MR_0
-VAL_SDRC_RFR_CTRL_0:
- .word VAL_H4_SDRC_RFR_CTRL_0
-#endif
diff --git a/board/omap2420h4/sys_info.c b/board/omap2420h4/sys_info.c
index b5fe9e3..78b936c 100644
--- a/board/omap2420h4/sys_info.c
+++ b/board/omap2420h4/sys_info.c
@@ -70,13 +70,21 @@ u32 get_cpu_rev(void)
*************************************************************/
u32 get_mem_type(void)
{
+ volatile u32 *burst = (volatile u32 *)(SDRC_MR_0+SDRC_CS0_OSET);
+
if (get_cpu_type() == CPU_2422)
return(DDR_STACKED);
if (get_board_type() == BOARD_H4_MENELAUS)
- return(DDR_COMBO);
+ if(*burst == H4_2420_SDRC_MR_0_SDR)
+ return(SDR_DISCRETE);
+ else
+ return(DDR_COMBO);
else
- return(DDR_DISCRETE);
+ if(*burst == H4_2420_SDRC_MR_0_SDR) /* SDP + SDR kit */
+ return(SDR_DISCRETE);
+ else
+ return(DDR_DISCRETE); /* origional SDP */
}
/***********************************************************************
@@ -129,6 +137,8 @@ u32 is_gpmc_muxed(void)
{
u32 mux;
mux = get_sysboot_value();
+ if ((mux & (BIT0 | BIT1 | BIT2 | BIT3)) == (BIT0 | BIT2 | BIT3))
+ return(GPMC_MUXED); /* NAND Boot mode */
if (mux & BIT1) /* if mux'ed */
return(GPMC_MUXED);
else
@@ -200,3 +210,96 @@ void display_board_info(u32 btype)
db_s = db_ip;
printf("TI H4 SDP Base Board with OMAP%s %s Daughter Board\n",cpu_s, db_s);
}
+
+/*************************************************************************
+ * get_board_rev() - setup to pass kernel board revision information
+ * 0 = 242x IP platform (first 2xx boards)
+ * 1 = 242x Menelaus platfrom.
+ *************************************************************************/
+u32 get_board_rev(void)
+{
+ u32 rev = 0;
+ u32 btype = get_board_type();
+
+ if (btype == BOARD_H4_MENELAUS){
+ rev = 1;
+ }
+ return(rev);
+}
+
+/********************************************************
+ * get_base(); get upper addr of current execution
+ *******************************************************/
+static u32 get_base(void)
+{
+ u32 val;
+ __asm__ __volatile__("mov %0, pc \n" : "=r" (val) : : "memory");
+ val &= 0xF0000000;
+ val >>= 28;
+ return(val);
+}
+
+/********************************************************
+ * get_base2(); get 2upper addr of current execution
+ *******************************************************/
+static u32 get_base2(void)
+{
+ u32 val;
+ __asm__ __volatile__("mov %0, pc \n" : "=r" (val) : : "memory");
+ val &= 0xFF000000;
+ val >>= 24;
+ return(val);
+}
+
+
+
+/********************************************************
+ * running_in_flash() - tell if currently running in
+ * flash.
+ *******************************************************/
+u32 running_in_flash(void)
+{
+ if (get_base() < 4)
+ return(1); /* in flash */
+ return(0); /* running in SRAM or SDRAM */
+}
+
+/********************************************************
+ * running_in_sram() - tell if currently running in
+ * sram.
+ *******************************************************/
+u32 running_in_sram(void)
+{
+ if (get_base() == 4)
+ return(1); /* in SRAM */
+ return(0); /* running in FLASH or SDRAM */
+}
+/********************************************************
+ * running_in_sdram() - tell if currently running in
+ * flash.
+ *******************************************************/
+u32 running_in_sdram(void)
+{
+ if (get_base() > 4)
+ return(1); /* in sdram */
+ return(0); /* running in SRAM or FLASH */
+}
+
+/*************************************************************
+ * running_from_internal_boot() - am I a signed NOR image.
+ *************************************************************/
+u32 running_from_internal_boot(void)
+{
+ u32 v, base;
+
+ v = get_sysboot_value() & BIT3;
+ base = get_base2();
+ /* if running at mask rom flash address and
+ * sysboot3 says this was an internal boot
+ */
+ if ((base == 0x08) && v)
+ return(1);
+ else
+ return(0);
+}
+
generated by cgit v1.1 at 2024-11-27 08:57:17 +0000