--- /dev/null
+/*
+ * (C) Copyright 2013
+ * Heiko Schocher, DENX Software Engineering, hs@denx.de.
+ *
+ * Based on:
+ * Copyright (c) 2011 IDS GmbH, Germany
+ * ids8313.c - ids8313 board support.
+ *
+ * Sergej Stepanov <ste@ids.de>
+ * Based on board/freescale/mpc8313erdb/mpc8313erdb.c
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <mpc83xx.h>
+#include <spi.h>
+#include <libfdt.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+/** CPLD contains the info about:
+ * - board type: *pCpld & 0xF0
+ * - hw-revision: *pCpld & 0x0F
+ * - cpld-revision: *pCpld+1
+ */
+int checkboard(void)
+{
+ char *pcpld = (char *)CONFIG_SYS_CPLD_BASE;
+ u8 u8Vers = readb(pcpld);
+ u8 u8Revs = readb(pcpld + 1);
+
+ printf("Board: ");
+ switch (u8Vers & 0xF0) {
+ case '\x40':
+ printf("CU73X");
+ break;
+ case '\x50':
+ printf("CC73X");
+ break;
+ default:
+ printf("unknown(0x%02X, 0x%02X)\n", u8Vers, u8Revs);
+ return 0;
+ }
+ printf("\nInfo: HW-Rev: %i, CPLD-Rev: %i\n",
+ u8Vers & 0x0F, u8Revs & 0xFF);
+ return 0;
+}
+
+/*
+ * fixed sdram init
+ */
+int fixed_sdram(unsigned long config)
+{
+ immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+ u32 msize = CONFIG_SYS_DDR_SIZE << 20;
+
+#ifndef CONFIG_SYS_RAMBOOT
+ u32 msize_log2 = __ilog2(msize);
+
+ out_be32(&im->sysconf.ddrlaw[0].bar,
+ (CONFIG_SYS_DDR_SDRAM_BASE & 0xfffff000));
+ out_be32(&im->sysconf.ddrlaw[0].ar, LBLAWAR_EN | (msize_log2 - 1));
+ out_be32(&im->sysconf.ddrcdr, CONFIG_SYS_DDRCDR_VALUE);
+ sync();
+
+ /*
+ * Erratum DDR3 requires a 50ms delay after clearing DDRCDR[DDR_cfg],
+ * or the DDR2 controller may fail to initialize correctly.
+ */
+ udelay(50000);
+
+ out_be32(&im->ddr.csbnds[0].csbnds, (msize - 1) >> 24);
+ out_be32(&im->ddr.cs_config[0], config);
+
+ /* currently we use only one CS, so disable the other banks */
+ out_be32(&im->ddr.cs_config[1], 0);
+ out_be32(&im->ddr.cs_config[2], 0);
+ out_be32(&im->ddr.cs_config[3], 0);
+
+ out_be32(&im->ddr.timing_cfg_3, CONFIG_SYS_DDR_TIMING_3);
+ out_be32(&im->ddr.timing_cfg_1, CONFIG_SYS_DDR_TIMING_1);
+ out_be32(&im->ddr.timing_cfg_2, CONFIG_SYS_DDR_TIMING_2);
+ out_be32(&im->ddr.timing_cfg_0, CONFIG_SYS_DDR_TIMING_0);
+
+ out_be32(&im->ddr.sdram_cfg, CONFIG_SYS_SDRAM_CFG);
+ out_be32(&im->ddr.sdram_cfg2, CONFIG_SYS_SDRAM_CFG2);
+
+ out_be32(&im->ddr.sdram_mode, CONFIG_SYS_DDR_MODE);
+ out_be32(&im->ddr.sdram_mode2, CONFIG_SYS_DDR_MODE_2);
+
+ out_be32(&im->ddr.sdram_interval, CONFIG_SYS_DDR_INTERVAL);
+ out_be32(&im->ddr.sdram_clk_cntl, CONFIG_SYS_DDR_CLK_CNTL);
+ sync();
+ udelay(300);
+
+ /* enable DDR controller */
+ setbits_be32(&im->ddr.sdram_cfg, SDRAM_CFG_MEM_EN);
+ /* now check the real size */
+ disable_addr_trans();
+ msize = get_ram_size(CONFIG_SYS_DDR_BASE, msize);
+ enable_addr_trans();
+#endif
+ return msize;
+}
+
+static int setup_sdram(void)
+{
+ u32 msize = CONFIG_SYS_DDR_SIZE << 20;
+ long int size_01, size_02;
+
+ size_01 = fixed_sdram(CONFIG_SYS_DDR_CONFIG);
+ size_02 = fixed_sdram(CONFIG_SYS_DDR_CONFIG_256);
+
+ if (size_01 > size_02)
+ msize = fixed_sdram(CONFIG_SYS_DDR_CONFIG);
+ else
+ msize = size_02;
+
+ return msize;
+}
+
+phys_size_t initdram(int board_type)
+{
+ immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+ fsl_lbc_t *lbc = &im->im_lbc;
+ u32 msize = 0;
+
+ if ((in_be32(&im->sysconf.immrbar) & IMMRBAR_BASE_ADDR) != (u32)im)
+ return -1;
+
+ msize = setup_sdram();
+
+ out_be32(&lbc->lbcr, CONFIG_SYS_LBC_LBCR);
+ out_be32(&lbc->mrtpr, CONFIG_SYS_LBC_MRTPR);
+ sync();
+
+ return msize;
+}
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+ ft_cpu_setup(blob, bd);
+}
+#endif
+
+/* gpio mask for spi_cs */
+#define IDSCPLD_SPI_CS_MASK 0x00000001
+/* spi_cs multiplexed through cpld */
+#define IDSCPLD_SPI_CS_BASE (CONFIG_SYS_CPLD_BASE + 0xf)
+
+#if defined(CONFIG_MISC_INIT_R)
+/* srp umcr mask for rts */
+#define IDSUMCR_RTS_MASK 0x04
+int misc_init_r(void)
+{
+ /*srp*/
+ duart83xx_t *uart1 = &((immap_t *)CONFIG_SYS_IMMR)->duart[0];
+ duart83xx_t *uart2 = &((immap_t *)CONFIG_SYS_IMMR)->duart[1];
+
+ gpio83xx_t *iopd = &((immap_t *)CONFIG_SYS_IMMR)->gpio[0];
+ u8 *spi_base = (u8 *)IDSCPLD_SPI_CS_BASE;
+
+ /* deactivate spi_cs channels */
+ out_8(spi_base, 0);
+ /* deactivate the spi_cs */
+ setbits_be32(&iopd->dir, IDSCPLD_SPI_CS_MASK);
+ /*srp - deactivate rts*/
+ out_8(&uart1->umcr, IDSUMCR_RTS_MASK);
+ out_8(&uart2->umcr, IDSUMCR_RTS_MASK);
+
+
+ gd->fdt_blob = (void *)CONFIG_SYS_FLASH_BASE;
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_MPC8XXX_SPI
+/*
+ * The following are used to control the SPI chip selects
+ */
+int spi_cs_is_valid(unsigned int bus, unsigned int cs)
+{
+ return bus == 0 && ((cs >= 0) && (cs <= 2));
+}
+
+void spi_cs_activate(struct spi_slave *slave)
+{
+ gpio83xx_t *iopd = &((immap_t *)CONFIG_SYS_IMMR)->gpio[0];
+ u8 *spi_base = (u8 *)IDSCPLD_SPI_CS_BASE;
+
+ /* select the spi_cs channel */
+ out_8(spi_base, 1 << slave->cs);
+ /* activate the spi_cs */
+ clrbits_be32(&iopd->dat, IDSCPLD_SPI_CS_MASK);
+}
+
+void spi_cs_deactivate(struct spi_slave *slave)
+{
+ gpio83xx_t *iopd = &((immap_t *)CONFIG_SYS_IMMR)->gpio[0];
+ u8 *spi_base = (u8 *)IDSCPLD_SPI_CS_BASE;
+
+ /* select the spi_cs channel */
+ out_8(spi_base, 1 << slave->cs);
+ /* deactivate the spi_cs */
+ setbits_be32(&iopd->dat, IDSCPLD_SPI_CS_MASK);
+}
+#endif /* CONFIG_HARD_SPI */
Code Review / kvmfornfv.git / blobdiff