ppc4xx: Add AMCC Canyonlands support (460EX) (1/3)
This patch adds support for the AMCC Canyonlands 460EX evaluation
board.
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/amcc/canyonlands/canyonlands.c b/board/amcc/canyonlands/canyonlands.c
new file mode 100644
index 0000000..8292d2d
--- /dev/null
+++ b/board/amcc/canyonlands/canyonlands.c
@@ -0,0 +1,385 @@
+/*
+ * (C) Copyright 2008
+ * Stefan Roese, DENX Software Engineering, sr@denx.de.
+ *
+ * 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 <ppc440.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/mmu.h>
+#include <asm/4xx_pcie.h>
+
+extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_early_init_f(void)
+{
+ u32 sdr0_cust0;
+
+ /*------------------------------------------------------------------+
+ * Setup the interrupt controller polarities, triggers, etc.
+ *------------------------------------------------------------------*/
+ mtdcr(uic0sr, 0xffffffff); /* clear all */
+ mtdcr(uic0er, 0x00000000); /* disable all */
+ mtdcr(uic0cr, 0x00000005); /* ATI & UIC1 crit are critical */
+ mtdcr(uic0pr, 0xffffffff); /* per ref-board manual */
+ mtdcr(uic0tr, 0x00000000); /* per ref-board manual */
+ mtdcr(uic0vr, 0x00000000); /* 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, 0xffffffff); /* per ref-board manual */
+ mtdcr(uic1tr, 0x00000000); /* per ref-board manual */
+ mtdcr(uic1vr, 0x00000000); /* 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, 0x00000000); /* per ref-board manual */
+ mtdcr(uic2vr, 0x00000000); /* int31 highest, base=0x000 */
+ mtdcr(uic2sr, 0xffffffff); /* clear all */
+
+ mtdcr(uic3sr, 0xffffffff); /* clear all */
+ mtdcr(uic3er, 0x00000000); /* disable all */
+ mtdcr(uic3cr, 0x00000000); /* all non-critical */
+ mtdcr(uic3pr, 0xffffffff); /* per ref-board manual */
+ mtdcr(uic3tr, 0x00000000); /* per ref-board manual */
+ mtdcr(uic3vr, 0x00000000); /* int31 highest, base=0x000 */
+ mtdcr(uic3sr, 0xffffffff); /* clear all */
+
+ /* SDR Setting - enable NDFC */
+ mfsdr(SDR0_CUST0, sdr0_cust0);
+ sdr0_cust0 = SDR0_CUST0_MUX_NDFC_SEL |
+ SDR0_CUST0_NDFC_ENABLE |
+ SDR0_CUST0_NDFC_BW_8_BIT |
+ SDR0_CUST0_NDFC_ARE_MASK |
+ SDR0_CUST0_NDFC_BAC_ENCODE(3) |
+ (0x80000000 >> (28 + CFG_NAND_CS));
+ mtsdr(SDR0_CUST0, sdr0_cust0);
+
+ /*
+ * Configure PFC (Pin Function Control) registers
+ * UART0: 4 pins
+ */
+ mtsdr(SDR0_PFC1, 0x00040000);
+
+ /* Enable PCI host functionality in SDR0_PCI0 */
+ mtsdr(SDR0_PCI0, 0xe0000000);
+
+ /* Enable ethernet and take out of reset */
+ out_8((void *)CFG_BCSR_BASE + 6, 0);
+
+ /* Remove NOR-FLASH, NAND-FLASH & EEPROM hardware write protection */
+ out_8((void *)CFG_BCSR_BASE + 5, 0);
+
+ /* Enable USB host & USB-OTG */
+ out_8((void *)CFG_BCSR_BASE + 7, 0);
+
+ mtsdr(SDR0_SRST1, 0); /* Pull AHB out of reset default=1 */
+
+ return 0;
+}
+
+int checkboard (void)
+{
+ char *s = getenv("serial#");
+ u32 pvr = get_pvr();
+
+ if ((pvr == PVR_460GT_RA) || (pvr == PVR_460GT_SE_RA))
+ printf("Board: Glacier - AMCC PPC460GT Evaluation Board");
+ else
+ printf("Board: Canyonlands - AMCC PPC460EX Evaluation Board");
+
+ 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.
+ */
+u32 ddr_wrdtr(u32 default_val) {
+ return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_180_DEG_ADV | 0x823);
+}
+
+u32 ddr_clktr(u32 default_val) {
+ return (SDRAM_CLKTR_CLKP_90_DEG_ADV);
+}
+
+#if defined(CFG_DRAM_TEST)
+int testdram(void)
+{
+ unsigned long *mem = (unsigned long *)0;
+ const unsigned long kend = (1024 / sizeof(unsigned long));
+ unsigned long k, n;
+
+ mtmsr(0);
+
+ for (k = 0; k < CFG_KBYTES_SDRAM;
+ ++k, mem += (1024 / sizeof(unsigned long))) {
+ if ((k & 1023) == 0) {
+ printf("%3d MB\r", k / 1024);
+ }
+
+ memset(mem, 0xaaaaaaaa, 1024);
+ for (n = 0; n < kend; ++n) {
+ if (mem[n] != 0xaaaaaaaa) {
+ printf("SDRAM test fails at: %08x\n",
+ (uint) & mem[n]);
+ return 1;
+ }
+ }
+
+ memset(mem, 0x55555555, 1024);
+ for (n = 0; n < kend; ++n) {
+ if (mem[n] != 0x55555555) {
+ printf("SDRAM test fails at: %08x\n",
+ (uint) & mem[n]);
+ return 1;
+ }
+ }
+ }
+ printf("SDRAM test passes\n");
+ return 0;
+}
+#endif
+
+/*************************************************************************
+ * 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 )
+{
+ /*-------------------------------------------------------------------+
+ * Disable everything
+ *-------------------------------------------------------------------*/
+ out_le32((void *)PCIX0_PIM0SA, 0); /* disable */
+ out_le32((void *)PCIX0_PIM1SA, 0); /* disable */
+ out_le32((void *)PCIX0_PIM2SA, 0); /* disable */
+ out_le32((void *)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.
+ *-------------------------------------------------------------------*/
+ out_le32((void *)PCIX0_PIM0LAL, CFG_SDRAM_BASE);
+ out_le32((void *)PCIX0_PIM0LAH, 0);
+ out_le32((void *)PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1);
+ out_le32((void *)PCIX0_BAR0, 0);
+
+ /*-------------------------------------------------------------------+
+ * Program the board's subsystem id/vendor id
+ *-------------------------------------------------------------------*/
+ out_le16((void *)PCIX0_SBSYSVID, CFG_PCI_SUBSYS_VENDORID);
+ out_le16((void *)PCIX0_SBSYSID, CFG_PCI_SUBSYS_DEVICEID);
+
+ out_le16((void *)PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY);
+}
+#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */
+
+#if defined(CONFIG_PCI)
+/*
+ * 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.
+ */
+int is_pci_host(struct pci_controller *hose)
+{
+ /* Board is always configured as host. */
+ return (1);
+}
+
+static struct pci_controller pcie_hose[2] = {{0},{0}};
+
+void pcie_setup_hoses(int busno)
+{
+ struct pci_controller *hose;
+ int i, bus;
+ int ret = 0;
+ char *env;
+ unsigned int delay;
+
+ /*
+ * assume we're called after the PCIX hose is initialized, which takes
+ * bus ID 0 and therefore start numbering PCIe's from 1.
+ */
+ bus = busno;
+ for (i = 0; i <= 1; 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;
+ }
+
+ hose = &pcie_hose[i];
+ hose->first_busno = bus;
+ hose->last_busno = bus;
+ hose->current_busno = bus;
+
+ /* setup mem resource */
+ pci_set_region(hose->regions + 0,
+ CFG_PCIE_MEMBASE + i * CFG_PCIE_MEMSIZE,
+ CFG_PCIE_MEMBASE + i * CFG_PCIE_MEMSIZE,
+ CFG_PCIE_MEMSIZE,
+ PCI_REGION_MEM);
+ hose->region_count = 1;
+ pci_register_hose(hose);
+
+ 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;
+ }
+ }
+}
+#endif /* CONFIG_PCI */
+
+int board_early_init_r (void)
+{
+ /*
+ * Canyonlands 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.cc00.0000
+ *
+ * For this we have to remap the CS0 and re-relocate the envrironment,
+ * since the original FLASH location which was needed upon startup is
+ * now not correct anymore.
+ */
+
+ /* Remap the NOR FLASH to 0xcc00.0000 ... 0xcfff.ffff */
+ mtebc(pb0cr, CFG_FLASH_BASE_PHYS_L | 0xda000);
+
+ /* Remove TLB entry of boot EBC mapping */
+ remove_tlb(CFG_BOOT_BASE_ADDR, 16 << 20);
+
+ /* Add TLB entry for 0xfc00.0000 -> 0x4.cc00.0000 */
+ program_tlb(CFG_FLASH_BASE_PHYS, CFG_FLASH_BASE, CFG_FLASH_SIZE,
+ TLB_WORD2_I_ENABLE);
+
+ /*
+ * Now accessing of the whole 64Mbytes of NOR FLASH at virtual address
+ * 0xfc00.0000 is possible
+ */
+
+ return 0;
+}
+
+int misc_init_r(void)
+{
+ u32 sdr0_srst1 = 0;
+ u32 eth_cfg;
+
+ /*
+ * Set EMAC mode/configuration (GMII, SGMII, RGMII...).
+ * This is board specific, so let's do it here.
+ */
+ mfsdr(SDR0_ETH_CFG, eth_cfg);
+ /* disable SGMII mode */
+ eth_cfg &= ~(SDR0_ETH_CFG_SGMII2_ENABLE |
+ SDR0_ETH_CFG_SGMII1_ENABLE |
+ SDR0_ETH_CFG_SGMII0_ENABLE);
+ /* Set the for 2 RGMII mode */
+ /* GMC0 EMAC4_0, GMC0 EMAC4_1, RGMII Bridge 0 */
+ eth_cfg &= ~SDR0_ETH_CFG_GMC0_BRIDGE_SEL;
+ eth_cfg |= SDR0_ETH_CFG_GMC1_BRIDGE_SEL;
+ mtsdr(SDR0_ETH_CFG, eth_cfg);
+
+ /*
+ * The AHB Bridge core is held in reset after power-on or reset
+ * so enable it now
+ */
+ mfsdr(SDR0_SRST1, sdr0_srst1);
+ sdr0_srst1 &= ~SDR0_SRST1_AHB;
+ mtsdr(SDR0_SRST1, sdr0_srst1);
+
+ return 0;
+}
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+ u32 val[4];
+ int rc;
+
+ ft_cpu_setup(blob, bd);
+
+ /* Fixup NOR mapping */
+ val[0] = 0; /* chip select number */
+ val[1] = 0; /* always 0 */
+ val[2] = gd->bd->bi_flashstart;
+ val[3] = gd->bd->bi_flashsize;
+ rc = fdt_find_and_setprop(blob, "/plb/opb/ebc", "ranges",
+ val, sizeof(val), 1);
+ if (rc)
+ printf("Unable to update property NOR mapping, err=%s\n",
+ fdt_strerror(rc));
+}
+#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */