[PATCH] Add support for AMCC Taishan PPC440GX eval board
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/amcc/taishan/taishan.c b/board/amcc/taishan/taishan.c
new file mode 100644
index 0000000..7e02371
--- /dev/null
+++ b/board/amcc/taishan/taishan.c
@@ -0,0 +1,331 @@
+/*
+ * Copyright (C) 2004 PaulReynolds@lhsolutions.com
+ *
+ * (C) Copyright 2007
+ * Stefan Roese, DENX Software Engineering, sr@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/processor.h>
+#include <spd_sdram.h>
+#include <ppc4xx_enet.h>
+
+#ifdef CFG_INIT_SHOW_RESET_REG
+void show_reset_reg(void);
+#endif
+
+int lcd_init(void);
+
+int board_early_init_f (void)
+{
+ unsigned long reg;
+ volatile unsigned int *GpioOdr;
+ volatile unsigned int *GpioTcr;
+ volatile unsigned int *GpioOr;
+
+ /*-------------------------------------------------------------------------+
+ | Initialize EBC CONFIG
+ +-------------------------------------------------------------------------*/
+ mtebc(xbcfg, EBC_CFG_LE_UNLOCK |
+ EBC_CFG_PTD_ENABLE | EBC_CFG_RTC_64PERCLK |
+ EBC_CFG_ATC_PREVIOUS | EBC_CFG_DTC_PREVIOUS |
+ EBC_CFG_CTC_PREVIOUS | EBC_CFG_EMC_DEFAULT |
+ EBC_CFG_PME_DISABLE | EBC_CFG_PR_32);
+
+ /*-------------------------------------------------------------------------+
+ | 64MB FLASH. Initialize bank 0 with default values.
+ +-------------------------------------------------------------------------*/
+ mtebc(pb0ap, EBC_BXAP_BME_DISABLED|EBC_BXAP_TWT_ENCODE(15) |
+ EBC_BXAP_BCE_DISABLE |
+ EBC_BXAP_CSN_ENCODE(1) | EBC_BXAP_OEN_ENCODE(1) |
+ EBC_BXAP_WBN_ENCODE(1) | EBC_BXAP_WBF_ENCODE(1) |
+ EBC_BXAP_TH_ENCODE(3) | EBC_BXAP_RE_DISABLED |
+ EBC_BXAP_BEM_WRITEONLY |
+ EBC_BXAP_PEN_DISABLED);
+ mtebc(pb0cr, EBC_BXCR_BAS_ENCODE(CFG_FLASH_BASE) |
+ EBC_BXCR_BS_64MB | EBC_BXCR_BU_RW|EBC_BXCR_BW_32BIT);
+
+ /*-------------------------------------------------------------------------+
+ | FPGA. Initialize bank 1 with default values.
+ +-------------------------------------------------------------------------*/
+ mtebc(pb1ap, EBC_BXAP_BME_DISABLED|EBC_BXAP_TWT_ENCODE(5) |
+ EBC_BXAP_BCE_DISABLE |
+ EBC_BXAP_CSN_ENCODE(1) | EBC_BXAP_OEN_ENCODE(1) |
+ EBC_BXAP_WBN_ENCODE(1) | EBC_BXAP_WBF_ENCODE(1) |
+ EBC_BXAP_TH_ENCODE(3) | EBC_BXAP_RE_DISABLED |
+ EBC_BXAP_BEM_WRITEONLY |
+ EBC_BXAP_PEN_DISABLED);
+ mtebc(pb1cr, EBC_BXCR_BAS_ENCODE(0x41000000) |
+ EBC_BXCR_BS_1MB | EBC_BXCR_BU_RW | EBC_BXCR_BW_8BIT);
+
+ /*-------------------------------------------------------------------------+
+ | LCM. Initialize bank 2 with default values.
+ +-------------------------------------------------------------------------*/
+ mtebc(pb2ap, EBC_BXAP_BME_DISABLED | EBC_BXAP_TWT_ENCODE(64) |
+ EBC_BXAP_BCE_DISABLE |
+ EBC_BXAP_CSN_ENCODE(3) | EBC_BXAP_OEN_ENCODE(3) |
+ EBC_BXAP_WBN_ENCODE(3) | EBC_BXAP_WBF_ENCODE(3) |
+ EBC_BXAP_TH_ENCODE(7) | EBC_BXAP_RE_DISABLED |
+ EBC_BXAP_BEM_WRITEONLY |
+ EBC_BXAP_PEN_DISABLED);
+ mtebc(pb2cr, EBC_BXCR_BAS_ENCODE(0x42000000) |
+ EBC_BXCR_BS_1MB | EBC_BXCR_BU_RW|EBC_BXCR_BW_8BIT);
+
+ /*-------------------------------------------------------------------------+
+ | TMP. Initialize bank 3 with default values.
+ +-------------------------------------------------------------------------*/
+ mtebc(pb3ap, EBC_BXAP_BME_DISABLED | EBC_BXAP_TWT_ENCODE(128) |
+ EBC_BXAP_BCE_DISABLE |
+ EBC_BXAP_CSN_ENCODE(3) | EBC_BXAP_OEN_ENCODE(3) |
+ EBC_BXAP_WBN_ENCODE(3) | EBC_BXAP_WBF_ENCODE(3) |
+ EBC_BXAP_TH_ENCODE(7) | EBC_BXAP_RE_DISABLED |
+ EBC_BXAP_BEM_WRITEONLY |
+ EBC_BXAP_PEN_DISABLED);
+ mtebc(pb3cr, EBC_BXCR_BAS_ENCODE(0x48000000) |
+ EBC_BXCR_BS_64MB | EBC_BXCR_BU_RW | EBC_BXCR_BW_32BIT);
+
+ /*-------------------------------------------------------------------------+
+ | Connector 4~7. Initialize bank 3~ 7 with default values.
+ +-------------------------------------------------------------------------*/
+ mtebc(pb4ap,0);
+ mtebc(pb4cr,0);
+ mtebc(pb5ap,0);
+ mtebc(pb5cr,0);
+ mtebc(pb6ap,0);
+ mtebc(pb6cr,0);
+ mtebc(pb7ap,0);
+ mtebc(pb7cr,0);
+
+ /*--------------------------------------------------------------------
+ * Setup the interrupt controller polarities, triggers, etc.
+ *-------------------------------------------------------------------*/
+ mtdcr (uic0sr, 0xffffffff); /* clear all */
+ mtdcr (uic0er, 0x00000000); /* disable all */
+ mtdcr (uic0cr, 0x00000009); /* SMI & UIC1 crit are critical */
+ mtdcr (uic0pr, 0xfffffe13); /* per ref-board manual */
+ mtdcr (uic0tr, 0x01c00008); /* per ref-board manual */
+ mtdcr (uic0vr, 0x00000001); /* int31 highest, base=0x000 */
+ mtdcr (uic0sr, 0xffffffff); /* clear all */
+
+ mtdcr (uic1sr, 0xffffffff); /* clear all */
+ mtdcr (uic1er, 0x00000000); /* disable all */
+ mtdcr (uic1cr, 0x00000000); /* all non-critical */
+ mtdcr (uic1pr, 0xffffe0ff); /* per ref-board manual */
+ mtdcr (uic1tr, 0x00ffc000); /* per ref-board manual */
+ mtdcr (uic1vr, 0x00000001); /* int31 highest, base=0x000 */
+ mtdcr (uic1sr, 0xffffffff); /* clear all */
+
+ mtdcr (uic2sr, 0xffffffff); /* clear all */
+ mtdcr (uic2er, 0x00000000); /* disable all */
+ mtdcr (uic2cr, 0x00000000); /* all non-critical */
+ mtdcr (uic2pr, 0xffffffff); /* per ref-board manual */
+ mtdcr (uic2tr, 0x00ff8c0f); /* per ref-board manual */
+ mtdcr (uic2vr, 0x00000001); /* int31 highest, base=0x000 */
+ mtdcr (uic2sr, 0xffffffff); /* clear all */
+
+ mtdcr (uicb0sr, 0xfc000000); /* clear all */
+ mtdcr (uicb0er, 0x00000000); /* disable all */
+ mtdcr (uicb0cr, 0x00000000); /* all non-critical */
+ mtdcr (uicb0pr, 0xfc000000); /* */
+ mtdcr (uicb0tr, 0x00000000); /* */
+ mtdcr (uicb0vr, 0x00000001); /* */
+
+ /* Enable two GPIO 10~11 and TraceA signal */
+ mfsdr(sdr_pfc0,reg);
+ reg |= 0x00300000;
+ mtsdr(sdr_pfc0,reg);
+
+ mfsdr(sdr_pfc1,reg);
+ reg |= 0x00100000;
+ mtsdr(sdr_pfc1,reg);
+
+ /* Set GPIO 10 and 11 as output */
+ GpioOdr = (volatile unsigned int*)(CFG_PERIPHERAL_BASE+0x718);
+ GpioTcr = (volatile unsigned int*)(CFG_PERIPHERAL_BASE+0x704);
+ GpioOr = (volatile unsigned int*)(CFG_PERIPHERAL_BASE+0x700);
+
+ *GpioOdr &= ~(0x00300000);
+ *GpioTcr |= 0x00300000;
+ *GpioOr |= 0x00300000;
+
+ return 0;
+}
+
+int misc_init_r(void)
+{
+ lcd_init();
+
+ return 0;
+}
+
+int checkboard (void)
+{
+ char *s = getenv ("serial#");
+
+ printf ("Board: Taishan - AMCC PPC440GX Evaluation Board");
+ if (s != NULL) {
+ puts (", serial# ");
+ puts (s);
+ }
+ putc ('\n');
+
+#ifdef CFG_INIT_SHOW_RESET_REG
+ show_reset_reg();
+#endif
+
+ return (0);
+}
+
+#if defined(CFG_DRAM_TEST)
+int testdram (void)
+{
+ uint *pstart = (uint *) 0x04000000;
+ uint *pend = (uint *) 0x0fc00000;
+ uint *p;
+
+ for (p = pstart; p < pend; p++)
+ *p = 0xaaaaaaaa;
+
+ for (p = pstart; p < pend; p++) {
+ if (*p != 0xaaaaaaaa) {
+ printf ("SDRAM test fails at: %08x\n", (uint) p);
+ return 1;
+ }
+ }
+
+ for (p = pstart; p < pend; p++)
+ *p = 0x55555555;
+
+ for (p = pstart; p < pend; p++) {
+ if (*p != 0x55555555) {
+ printf ("SDRAM test fails at: %08x\n", (uint) p);
+ return 1;
+ }
+ }
+ return 0;
+}
+#endif
+
+/*************************************************************************
+ * pci_pre_init
+ *
+ * This routine is called just prior to registering the hose and gives
+ * the board the opportunity to check things. Returning a value of zero
+ * indicates that things are bad & PCI initialization should be aborted.
+ *
+ * Different boards may wish to customize the pci controller structure
+ * (add regions, override default access routines, etc) or perform
+ * certain pre-initialization actions.
+ *
+ ************************************************************************/
+#if defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT)
+int pci_pre_init(struct pci_controller * hose )
+{
+ unsigned long strap;
+
+ /*--------------------------------------------------------------------------+
+ * The ocotea board is always configured as the host & requires the
+ * PCI arbiter to be enabled.
+ *--------------------------------------------------------------------------*/
+ mfsdr(sdr_sdstp1, strap);
+ if( (strap & SDR0_SDSTP1_PAE_MASK) == 0 ){
+ printf("PCI: SDR0_STRP1[%08lX] - PCI Arbiter disabled.\n",strap);
+ return 0;
+ }
+
+ return 1;
+}
+#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT) */
+
+/*************************************************************************
+ * pci_target_init
+ *
+ * The bootstrap configuration provides default settings for the pci
+ * inbound map (PIM). But the bootstrap config choices are limited and
+ * may not be sufficient for a given board.
+ *
+ ************************************************************************/
+#if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT)
+void pci_target_init(struct pci_controller * hose )
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ /*--------------------------------------------------------------------------+
+ * Disable everything
+ *--------------------------------------------------------------------------*/
+ out32r( PCIX0_PIM0SA, 0 ); /* disable */
+ out32r( PCIX0_PIM1SA, 0 ); /* disable */
+ out32r( PCIX0_PIM2SA, 0 ); /* disable */
+ out32r( PCIX0_EROMBA, 0 ); /* disable expansion rom */
+
+ /*--------------------------------------------------------------------------+
+ * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440 strapping
+ * options to not support sizes such as 128/256 MB.
+ *--------------------------------------------------------------------------*/
+ out32r( PCIX0_PIM0LAL, CFG_SDRAM_BASE );
+ out32r( PCIX0_PIM0LAH, 0 );
+ out32r( PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1 );
+
+ out32r( PCIX0_BAR0, 0 );
+
+ /*--------------------------------------------------------------------------+
+ * Program the board's subsystem id/vendor id
+ *--------------------------------------------------------------------------*/
+ out16r( PCIX0_SBSYSVID, CFG_PCI_SUBSYS_VENDORID );
+ out16r( PCIX0_SBSYSID, CFG_PCI_SUBSYS_DEVICEID );
+
+ out16r( PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY );
+}
+#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */
+
+/*************************************************************************
+ * is_pci_host
+ *
+ * This routine is called to determine if a pci scan should be
+ * performed. With various hardware environments (especially cPCI and
+ * PPMC) it's insufficient to depend on the state of the arbiter enable
+ * bit in the strap register, or generic host/adapter assumptions.
+ *
+ * Rather than hard-code a bad assumption in the general 440 code, the
+ * 440 pci code requires the board to decide at runtime.
+ *
+ * Return 0 for adapter mode, non-zero for host (monarch) mode.
+ *
+ *
+ ************************************************************************/
+#if defined(CONFIG_PCI)
+int is_pci_host(struct pci_controller *hose)
+{
+ /* The ocotea board is always configured as host. */
+ return(1);
+}
+#endif /* defined(CONFIG_PCI) */
+
+#ifdef CONFIG_POST
+/*
+ * Returns 1 if keys pressed to start the power-on long-running tests
+ * Called from board_init_f().
+ */
+int post_hotkeys_pressed(void)
+{
+ return (ctrlc());
+}
+#endif