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Diffstat (limited to 'board/ids/ids8313/ids8313.c')
| -rw-r--r-- | board/ids/ids8313/ids8313.c | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/board/ids/ids8313/ids8313.c b/board/ids/ids8313/ids8313.c new file mode 100644 index 0000000..f742143 --- /dev/null +++ b/board/ids/ids8313/ids8313.c @@ -0,0 +1,208 @@ +/* + * (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 */ |