ppc4xx: Add support for ICON board (PPC440SPe)

This patch adds support for the Mosaix Technologies, Inc. ICON board,
based on the AppliedMicro (AMCC) PPC440SPe. It's equipped with an SODIMM
(512MB standard) and 64MByte of NOR FLASH.

Support for the onboard SM502 will be added later.

Signed-off-by: Stefan Roese <sr@denx.de>

1 files changed, 319 insertions, 0 deletions

diff --git a/board/mosaixtech/icon/icon.c b/board/mosaixtech/icon/icon.c
new file mode 100644
index 0000000..fbace9e
--- /dev/null
+++ b/board/mosaixtech/icon/icon.c
@@ -0,0 +1,319 @@
+/*
+ * (C) Copyright 2009-2010
+ * 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 <ppc4xx.h>
+#include <i2c.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <netdev.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <asm/4xx_pcie.h>
+#include <asm/errno.h>
+#include <asm/mmu.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_early_init_f(void)
+{
+	unsigned long mfr;
+
+	/*
+	 * Interrupt controller setup for the ICON 440SPe board.
+	 *
+	 *--------------------------------------------------------------------
+	 * IRQ    | Source                            | Pol.  | Sensi.| Crit.
+	 *--------+-----------------------------------+-------+-------+-------
+	 * IRQ 00 | UART0                             | High  | Level | Non
+	 * IRQ 01 | UART1                             | High  | Level | Non
+	 * IRQ 02 | IIC0                              | High  | Level | Non
+	 * IRQ 03 | IIC1                              | High  | Level | Non
+	 * IRQ 04 | PCI0X0 MSG IN                     | High  | Level | Non
+	 * IRQ 05 | PCI0X0 CMD Write                  | High  | Level | Non
+	 * IRQ 06 | PCI0X0 Power Mgt                  | High  | Level | Non
+	 * IRQ 07 | PCI0X0 VPD Access                 | Rising| Edge  | Non
+	 * IRQ 08 | PCI0X0 MSI level 0                | High  | Lvl/ed| Non
+	 * IRQ 09 | External IRQ 15 - (PCI-Express)   | pgm H | Pgm   | Non
+	 * IRQ 10 | UIC2 Non-critical Int.            | NA    | NA    | Non
+	 * IRQ 11 | UIC2 Critical Interrupt           | NA    | NA    | Crit
+	 * IRQ 12 | PCI Express MSI Level 0           | Rising| Edge  | Non
+	 * IRQ 13 | PCI Express MSI Level 1           | Rising| Edge  | Non
+	 * IRQ 14 | PCI Express MSI Level 2           | Rising| Edge  | Non
+	 * IRQ 15 | PCI Express MSI Level 3           | Rising| Edge  | Non
+	 * IRQ 16 | UIC3 Non-critical Int.            | NA    | NA    | Non
+	 * IRQ 17 | UIC3 Critical Interrupt           | NA    | NA    | Crit
+	 * IRQ 18 | External IRQ 14 - (PCI-Express)   | Pgm   | Pgm   | Non
+	 * IRQ 19 | DMA Channel 0 FIFO Full           | High  | Level | Non
+	 * IRQ 20 | DMA Channel 0 Stat FIFO           | High  | Level | Non
+	 * IRQ 21 | DMA Channel 1 FIFO Full           | High  | Level | Non
+	 * IRQ 22 | DMA Channel 1 Stat FIFO           | High  | Level | Non
+	 * IRQ 23 | I2O Inbound Doorbell              | High  | Level | Non
+	 * IRQ 24 | Inbound Post List FIFO Not Empt   | High  | Level | Non
+	 * IRQ 25 | I2O Region 0 LL PLB Write         | High  | Level | Non
+	 * IRQ 26 | I2O Region 1 LL PLB Write         | High  | Level | Non
+	 * IRQ 27 | I2O Region 0 HB PLB Write         | High  | Level | Non
+	 * IRQ 28 | I2O Region 1 HB PLB Write         | High  | Level | Non
+	 * IRQ 29 | GPT Down Count Timer              | Rising| Edge  | Non
+	 * IRQ 30 | UIC1 Non-critical Int.            | NA    | NA    | Non
+	 * IRQ 31 | UIC1 Critical Interrupt           | NA    | NA    | Crit.
+	 *--------------------------------------------------------------------
+	 * IRQ 32 | Ext. IRQ 13 - (PCI-Express)       |pgm (H)|pgm/Lvl| Non
+	 * IRQ 33 | MAL Serr                          | High  | Level | Non
+	 * IRQ 34 | MAL Txde                          | High  | Level | Non
+	 * IRQ 35 | MAL Rxde                          | High  | Level | Non
+	 * IRQ 36 | DMC CE or DMC UE                  | High  | Level | Non
+	 * IRQ 37 | EBC or UART2                      | High  |Lvl Edg| Non
+	 * IRQ 38 | MAL TX EOB                        | High  | Level | Non
+	 * IRQ 39 | MAL RX EOB                        | High  | Level | Non
+	 * IRQ 40 | PCIX0 MSI Level 1                 | High  |Lvl Edg| Non
+	 * IRQ 41 | PCIX0 MSI level 2                 | High  |Lvl Edg| Non
+	 * IRQ 42 | PCIX0 MSI level 3                 | High  |Lvl Edg| Non
+	 * IRQ 43 | L2 Cache                          | Risin | Edge  | Non
+	 * IRQ 44 | GPT Compare Timer 0               | Risin | Edge  | Non
+	 * IRQ 45 | GPT Compare Timer 1               | Risin | Edge  | Non
+	 * IRQ 46 | GPT Compare Timer 2               | Risin | Edge  | Non
+	 * IRQ 47 | GPT Compare Timer 3               | Risin | Edge  | Non
+	 * IRQ 48 | GPT Compare Timer 4               | Risin | Edge  | Non
+	 * IRQ 49 | Ext. IRQ 12 - PCI-X               |pgm/Fal|pgm/Lvl| Non
+	 * IRQ 50 | Ext. IRQ 11 -                     |pgm (H)|pgm/Lvl| Non
+	 * IRQ 51 | Ext. IRQ 10 -                     |pgm (H)|pgm/Lvl| Non
+	 * IRQ 52 | Ext. IRQ 9                        |pgm (H)|pgm/Lvl| Non
+	 * IRQ 53 | Ext. IRQ 8                        |pgm (H)|pgm/Lvl| Non
+	 * IRQ 54 | DMA Error                         | High  | Level | Non
+	 * IRQ 55 | DMA I2O Error                     | High  | Level | Non
+	 * IRQ 56 | Serial ROM                        | High  | Level | Non
+	 * IRQ 57 | PCIX0 Error                       | High  | Edge  | Non
+	 * IRQ 58 | Ext. IRQ 7-                       |pgm (H)|pgm/Lvl| Non
+	 * IRQ 59 | Ext. IRQ 6-                       |pgm (H)|pgm/Lvl| Non
+	 * IRQ 60 | EMAC0 Interrupt                   | High  | Level | Non
+	 * IRQ 61 | EMAC0 Wake-up                     | High  | Level | Non
+	 * IRQ 62 | Reserved                          | High  | Level | Non
+	 * IRQ 63 | XOR                               | High  | Level | Non
+	 *--------------------------------------------------------------------
+	 * IRQ 64 | PE0 AL                            | High  | Level | Non
+	 * IRQ 65 | PE0 VPD Access                    | Risin | Edge  | Non
+	 * IRQ 66 | PE0 Hot Reset Request             | Risin | Edge  | Non
+	 * IRQ 67 | PE0 Hot Reset Request             | Falli | Edge  | Non
+	 * IRQ 68 | PE0 TCR                           | High  | Level | Non
+	 * IRQ 69 | PE0 BusMaster VCO                 | Falli | Edge  | Non
+	 * IRQ 70 | PE0 DCR Error                     | High  | Level | Non
+	 * IRQ 71 | Reserved                          | N/A   | N/A   | Non
+	 * IRQ 72 | PE1 AL                            | High  | Level | Non
+	 * IRQ 73 | PE1 VPD Access                    | Risin | Edge  | Non
+	 * IRQ 74 | PE1 Hot Reset Request             | Risin | Edge  | Non
+	 * IRQ 75 | PE1 Hot Reset Request             | Falli | Edge  | Non
+	 * IRQ 76 | PE1 TCR                           | High  | Level | Non
+	 * IRQ 77 | PE1 BusMaster VCO                 | Falli | Edge  | Non
+	 * IRQ 78 | PE1 DCR Error                     | High  | Level | Non
+	 * IRQ 79 | Reserved                          | N/A   | N/A   | Non
+	 * IRQ 80 | PE2 AL                            | High  | Level | Non
+	 * IRQ 81 | PE2 VPD Access                    | Risin | Edge  | Non
+	 * IRQ 82 | PE2 Hot Reset Request             | Risin | Edge  | Non
+	 * IRQ 83 | PE2 Hot Reset Request             | Falli | Edge  | Non
+	 * IRQ 84 | PE2 TCR                           | High  | Level | Non
+	 * IRQ 85 | PE2 BusMaster VCO                 | Falli | Edge  | Non
+	 * IRQ 86 | PE2 DCR Error                     | High  | Level | Non
+	 * IRQ 87 | Reserved                          | N/A   | N/A   | Non
+	 * IRQ 88 | External IRQ(5)                   | Progr | Progr | Non
+	 * IRQ 89 | External IRQ 4 - Ethernet         | Progr | Progr | Non
+	 * IRQ 90 | External IRQ 3 - PCI-X            | Progr | Progr | Non
+	 * IRQ 91 | External IRQ 2 - PCI-X            | Progr | Progr | Non
+	 * IRQ 92 | External IRQ 1 - PCI-X            | Progr | Progr | Non
+	 * IRQ 93 | External IRQ 0 - PCI-X            | Progr | Progr | Non
+	 * IRQ 94 | Reserved                          | N/A   | N/A   | Non
+	 * IRQ 95 | Reserved                          | N/A   | N/A   | Non
+	 *--------------------------------------------------------------------
+	 * IRQ 96 | PE0 INTA                          | High  | Level | Non
+	 * IRQ 97 | PE0 INTB                          | High  | Level | Non
+	 * IRQ 98 | PE0 INTC                          | High  | Level | Non
+	 * IRQ 99 | PE0 INTD                          | High  | Level | Non
+	 * IRQ 100| PE1 INTA                          | High  | Level | Non
+	 * IRQ 101| PE1 INTB                          | High  | Level | Non
+	 * IRQ 102| PE1 INTC                          | High  | Level | Non
+	 * IRQ 103| PE1 INTD                          | High  | Level | Non
+	 * IRQ 104| PE2 INTA                          | High  | Level | Non
+	 * IRQ 105| PE2 INTB                          | High  | Level | Non
+	 * IRQ 106| PE2 INTC                          | High  | Level | Non
+	 * IRQ 107| PE2 INTD                          | Risin | Edge  | Non
+	 * IRQ 108| PCI Express MSI Level 4           | Risin | Edge  | Non
+	 * IRQ 109| PCI Express MSI Level 5           | Risin | Edge  | Non
+	 * IRQ 110| PCI Express MSI Level 6           | Risin | Edge  | Non
+	 * IRQ 111| PCI Express MSI Level 7           | Risin | Edge  | Non
+	 * IRQ 116| PCI Express MSI Level 12          | Risin | Edge  | Non
+	 * IRQ 112| PCI Express MSI Level 8           | Risin | Edge  | Non
+	 * IRQ 113| PCI Express MSI Level 9           | Risin | Edge  | Non
+	 * IRQ 114| PCI Express MSI Level 10          | Risin | Edge  | Non
+	 * IRQ 115| PCI Express MSI Level 11          | Risin | Edge  | Non
+	 * IRQ 117| PCI Express MSI Level 13          | Risin | Edge  | Non
+	 * IRQ 118| PCI Express MSI Level 14          | Risin | Edge  | Non
+	 * IRQ 119| PCI Express MSI Level 15          | Risin | Edge  | Non
+	 * IRQ 120| PCI Express MSI Level 16          | Risin | Edge  | Non
+	 * IRQ 121| PCI Express MSI Level 17          | Risin | Edge  | Non
+	 * IRQ 122| PCI Express MSI Level 18          | Risin | Edge  | Non
+	 * IRQ 123| PCI Express MSI Level 19          | Risin | Edge  | Non
+	 * IRQ 124| PCI Express MSI Level 20          | Risin | Edge  | Non
+	 * IRQ 125| PCI Express MSI Level 21          | Risin | Edge  | Non
+	 * IRQ 126| PCI Express MSI Level 22          | Risin | Edge  | Non
+	 * IRQ 127| PCI Express MSI Level 23          | Risin | Edge  | Non
+	 */
+
+	/*
+	 * Put UICs in PowerPC 440SPe mode.
+	 * Initialise UIC registers. Clear all interrupts. Disable all
+	 * interrupts. Set critical interrupt values. Set interrupt polarities.
+	 * Set interrupt trigger levels. Make bit 0 High priority. Clear all
+	 * interrupts again.
+	 */
+	mtdcr(UIC3SR, 0xffffffff);	/* Clear all interrupts */
+	mtdcr(UIC3ER, 0x00000000);	/* disable all interrupts */
+	mtdcr(UIC3CR, 0x00000000);	/* Set Critical / Non Critical IRQs */
+	mtdcr(UIC3PR, 0xffffffff);	/* Set Interrupt Polarities*/
+	mtdcr(UIC3TR, 0x001fffff);	/* Set Interrupt Trigger Levels */
+	mtdcr(UIC3VR, 0x00000001);	/* Set Vect base=0,INT31 Highest prio */
+	mtdcr(UIC3SR, 0x00000000);	/* clear all  interrupts*/
+	mtdcr(UIC3SR, 0xffffffff);	/* clear all  interrupts*/
+
+	mtdcr(UIC2SR, 0xffffffff);	/* Clear all interrupts */
+	mtdcr(UIC2ER, 0x00000000);	/* disable all interrupts*/
+	mtdcr(UIC2CR, 0x00000000);	/* Set Critical / Non Critical IRQs */
+	mtdcr(UIC2PR, 0xebebebff);	/* Set Interrupt Polarities*/
+	mtdcr(UIC2TR, 0x74747400);	/* Set Interrupt Trigger Levels */
+	mtdcr(UIC2VR, 0x00000001);	/* Set Vect base=0,INT31 Highest prio */
+	mtdcr(UIC2SR, 0x00000000);	/* clear all interrupts */
+	mtdcr(UIC2SR, 0xffffffff);	/* clear all interrupts */
+
+	mtdcr(UIC1SR, 0xffffffff);	/* Clear all interrupts*/
+	mtdcr(UIC1ER, 0x00000000);	/* disable all interrupts*/
+	mtdcr(UIC1CR, 0x00000000);	/* Set Critical / Non Critical IRQs */
+	mtdcr(UIC1PR, 0xffffffff);	/* Set Interrupt Polarities */
+	mtdcr(UIC1TR, 0x001f8040);	/* Set Interrupt Trigger Levels*/
+	mtdcr(UIC1VR, 0x00000001);	/* Set Vect base=0,INT31 Highest prio */
+	mtdcr(UIC1SR, 0x00000000);	/* clear all interrupts*/
+	mtdcr(UIC1SR, 0xffffffff);	/* clear all interrupts*/
+
+	mtdcr(UIC0SR, 0xffffffff);	/* Clear all interrupts */
+	mtdcr(UIC0ER, 0x00000000);	/* disable all int. excepted cascade */
+	mtdcr(UIC0CR, 0x00104001);	/* Set Critical / Non Critical IRQs */
+	mtdcr(UIC0PR, 0xffffffff);	/* Set Interrupt Polarities*/
+	mtdcr(UIC0TR, 0x010f0004);	/* Set Interrupt Trigger Levels */
+	mtdcr(UIC0VR, 0x00000001);	/* Set Vect base=0,INT31 Highest prio */
+	mtdcr(UIC0SR, 0x00000000);	/* clear all interrupts*/
+	mtdcr(UIC0SR, 0xffffffff);	/* clear all interrupts*/
+
+	mfsdr(SDR0_MFR, mfr);
+	mfr |= SDR0_MFR_FIXD;		/* Workaround for PCI/DMA */
+	mtsdr(SDR0_MFR, mfr);
+
+	mtsdr(SDR0_PFC0, CONFIG_SYS_PFC0);
+
+	out_be32((void *)GPIO0_OR, CONFIG_SYS_GPIO_OR);
+	out_be32((void *)GPIO0_ODR, CONFIG_SYS_GPIO_ODR);
+	out_be32((void *)GPIO0_TCR, CONFIG_SYS_GPIO_TCR);
+
+	return 0;
+}
+
+int board_early_init_r(void)
+{
+	/*
+	 * ICON has 64MBytes of NOR FLASH (Spansion 29GL512), but the
+	 * boot EBC mapping only supports a maximum of 16MBytes
+	 * (4.ff00.0000 - 4.ffff.ffff).
+	 * To solve this problem, the FLASH has to get remapped to another
+	 * EBC address which accepts bigger regions:
+	 *
+	 * 0xfc00.0000 -> 4.ec00.0000
+	 */
+
+	/* Remap the NOR FLASH to 0xec00.0000 ... 0xefff.ffff */
+	mtebc(PB0CR, CONFIG_SYS_FLASH_BASE_PHYS_L | 0xda000);
+
+	/* Remove TLB entry of boot EBC mapping */
+	remove_tlb(CONFIG_SYS_BOOT_BASE_ADDR, 16 << 20);
+
+	/* Add TLB entry for 0xfc00.0000 -> 0x4.ec00.0000 */
+	program_tlb(CONFIG_SYS_FLASH_BASE_PHYS, CONFIG_SYS_FLASH_BASE,
+		    CONFIG_SYS_FLASH_SIZE, TLB_WORD2_I_ENABLE);
+
+	/*
+	 * Now accessing of the whole 64Mbytes of NOR FLASH at virtual address
+	 * 0xfc00.0000 is possible
+	 */
+
+	/*
+	 * Clear potential errors resulting from auto-calibration.
+	 * If not done, then we could get an interrupt later on when
+	 * exceptions are enabled.
+	 */
+	set_mcsr(get_mcsr());
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	char *s = getenv("serial#");
+
+	printf("Board: ICON");
+	if (s != NULL) {
+		puts(", serial# ");
+		puts(s);
+	}
+	putc('\n');
+
+	return 0;
+}
+
+/*
+ * Override the default functions in cpu/ppc4xx/44x_spd_ddr2.c with
+ * board specific values.
+ *
+ * Tested successfully with the following SODIMM:
+ * Crucial CT6464AC667.4FE - 512MB SO-DIMM (single rank)
+ *
+ * Tests with Micron MT4HTF6464HZ-667H1 showed problems in "cold" state,
+ * directly after power-up. Only after running for more than 10 minutes
+ * real stable auto-calibration windows could be found.
+ */
+u32 ddr_wrdtr(u32 default_val)
+{
+	return SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_90_DEG_ADV;
+}
+
+u32 ddr_clktr(u32 default_val)
+{
+	return SDRAM_CLKTR_CLKP_180_DEG_ADV;
+}
+
+/*
+ * Override the weak default implementation and return the
+ * last PCIe slot number (max number - 1).
+ */
+int board_pcie_last(void)
+{
+	/* Only 2 PCIe ports used on ICON, so the last one is 1 */
+	return 1;
+}