/*
- * (C) Copyright 2007
+ * (C) Copyright 2007-2008
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* See file CREDITS for list of people who contributed to this
#include <common.h>
#include <ppc4xx.h>
-#include <asm/processor.h>
#include <i2c.h>
-#include <asm-ppc/io.h>
-#include <asm-ppc/gpio.h>
-
-#include "../cpu/ppc4xx/440spe_pcie.h"
-
-#undef PCIE_ENDPOINT
-/* #define PCIE_ENDPOINT 1 */
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <asm/4xx_pcie.h>
DECLARE_GLOBAL_DATA_PTR;
-int ppc440spe_init_pcie_rootport(int port);
-void ppc440spe_setup_pcie(struct pci_controller *hose, int port);
-
int board_early_init_f (void)
{
unsigned long mfr;
mtdcr (uic0sr, 0x00000000); /* clear all interrupts*/
mtdcr (uic0sr, 0xffffffff); /* clear all interrupts*/
-/* SDR0_MFR should be part of Ethernet init */
- mfsdr (sdr_mfr, mfr);
- mfr &= ~SDR0_MFR_ECS_MASK;
-/* mtsdr(sdr_mfr, mfr); */
+ mfsdr(sdr_mfr, mfr);
+ mfr |= SDR0_MFR_FIXD; /* Workaround for PCI/DMA */
+ mtsdr(sdr_mfr, mfr);
mtsdr(SDR0_PFC0, CFG_PFC0);
return 0;
}
-#if defined(CFG_DRAM_TEST)
-int testdram (void)
-{
- uint *pstart = (uint *) 0x00000000;
- uint *pend = (uint *) 0x08000000;
- 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;
+/*
+ * Override the default functions in cpu/ppc4xx/44x_spd_ddr2.c with
+ * board specific values.
+ */
+u32 ddr_wrdtr(u32 default_val) {
+ return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_180_DEG_ADV | 0x823);
+}
- for (p = pstart; p < pend; p++) {
- if (*p != 0x55555555) {
- printf ("SDRAM test fails at: %08x\n", (uint) p);
- return 1;
- }
- }
- return 0;
+u32 ddr_clktr(u32 default_val) {
+ return (SDRAM_CLKTR_CLKP_90_DEG_ADV);
}
-#endif
/*************************************************************************
* pci_pre_init
return 1;
}
-int katmai_pcie_card_present(int port)
+static int katmai_pcie_card_present(int port)
{
u32 val;
{
struct pci_controller *hose;
int i, bus;
+ int ret = 0;
char *env;
unsigned int delay;
if (!katmai_pcie_card_present(i))
continue;
-#ifdef PCIE_ENDPOINT
- if (ppc440spe_init_pcie_endport(i)) {
-#else
- if (ppc440spe_init_pcie_rootport(i)) {
-#endif
- printf("PCIE%d: initialization failed\n", i);
+ if (is_end_point(i))
+ ret = ppc4xx_init_pcie_endport(i);
+ else
+ ret = ppc4xx_init_pcie_rootport(i);
+ if (ret) {
+ printf("PCIE%d: initialization as %s failed\n", i,
+ is_end_point(i) ? "endpoint" : "root-complex");
continue;
}
CFG_PCIE_MEMBASE + i * CFG_PCIE_MEMSIZE,
CFG_PCIE_MEMBASE + i * CFG_PCIE_MEMSIZE,
CFG_PCIE_MEMSIZE,
- PCI_REGION_MEM
- );
+ PCI_REGION_MEM);
hose->region_count = 1;
pci_register_hose(hose);
-#ifdef PCIE_ENDPOINT
- ppc440spe_setup_pcie_endpoint(hose, i);
- /*
- * Reson for no scanning is endpoint can not generate
- * upstream configuration accesses.
- */
-#else
- ppc440spe_setup_pcie_rootpoint(hose, i);
-
- env = getenv ("pciscandelay");
- if (env != NULL) {
- delay = simple_strtoul (env, NULL, 10);
- if (delay > 5)
- printf ("Warning, expect noticable delay before PCIe"
- "scan due to 'pciscandelay' value!\n");
- mdelay (delay * 1000);
+ if (is_end_point(i)) {
+ ppc4xx_setup_pcie_endpoint(hose, i);
+ /*
+ * Reson for no scanning is endpoint can not generate
+ * upstream configuration accesses.
+ */
+ } else {
+ ppc4xx_setup_pcie_rootpoint(hose, i);
+ env = getenv ("pciscandelay");
+ if (env != NULL) {
+ delay = simple_strtoul(env, NULL, 10);
+ if (delay > 5)
+ printf("Warning, expect noticable delay before "
+ "PCIe scan due to 'pciscandelay' value!\n");
+ mdelay(delay * 1000);
+ }
+
+ /*
+ * Config access can only go down stream
+ */
+ hose->last_busno = pci_hose_scan(hose);
+ bus = hose->last_busno + 1;
}
-
- /*
- * Config access can only go down stream
- */
- hose->last_busno = pci_hose_scan(hose);
- bus = hose->last_busno + 1;
-#endif
}
}
#endif /* defined(CONFIG_PCI) */
-int misc_init_f (void)
-{
- uint reg;
-#if defined(CONFIG_STRESS)
- uint i ;
- uint disp;
-#endif
-
- /* minimal init for PCIe */
-#if 0 /* test-only: test endpoint at some time, for now rootpoint only */
- /* pci express 0 Endpoint Mode */
- mfsdr(SDR0_PE0DLPSET, reg);
- reg &= (~0x00400000);
- mtsdr(SDR0_PE0DLPSET, reg);
-#else
- /* pci express 0 Rootpoint Mode */
- mfsdr(SDR0_PE0DLPSET, reg);
- reg |= 0x00400000;
- mtsdr(SDR0_PE0DLPSET, reg);
-#endif
- /* pci express 1 Rootpoint Mode */
- mfsdr(SDR0_PE1DLPSET, reg);
- reg |= 0x00400000;
- mtsdr(SDR0_PE1DLPSET, reg);
- /* pci express 2 Rootpoint Mode */
- mfsdr(SDR0_PE2DLPSET, reg);
- reg |= 0x00400000;
- mtsdr(SDR0_PE2DLPSET, reg);
-
-#if defined(CONFIG_STRESS)
- /*
- * All this setting done by linux only needed by stress an charac. test
- * procedure
- * PCIe 1 Rootpoint PCIe2 Endpoint
- * PCIe 0 FIR Pre-emphasis Filter Coefficients & Transmit Driver Power Level
- */
- for (i=0,disp=0; i<8; i++,disp+=3) {
- mfsdr(SDR0_PE0HSSSET1L0+disp, reg);
- reg |= 0x33000000;
- mtsdr(SDR0_PE0HSSSET1L0+disp, reg);
- }
-
- /*PCIe 1 FIR Pre-emphasis Filter Coefficients & Transmit Driver Power Level */
- for (i=0,disp=0; i<4; i++,disp+=3) {
- mfsdr(SDR0_PE1HSSSET1L0+disp, reg);
- reg |= 0x33000000;
- mtsdr(SDR0_PE1HSSSET1L0+disp, reg);
- }
-
- /*PCIE 2 FIR Pre-emphasis Filter Coefficients & Transmit Driver Power Level */
- for (i=0,disp=0; i<4; i++,disp+=3) {
- mfsdr(SDR0_PE2HSSSET1L0+disp, reg);
- reg |= 0x33000000;
- mtsdr(SDR0_PE2HSSSET1L0+disp, reg);
- }
-
- reg = 0x21242222;
- mtsdr(SDR0_PE2UTLSET1, reg);
- reg = 0x11000000;
- mtsdr(SDR0_PE2UTLSET2, reg);
- /* pci express 1 Endpoint Mode */
- reg = 0x00004000;
- mtsdr(SDR0_PE2DLPSET, reg);
-
- mtsdr(SDR0_UART1, 0x2080005a); /* patch for TG */
-#endif
-
- return 0;
-}
-
#ifdef CONFIG_POST
/*
* Returns 1 if keys pressed to start the power-on long-running tests