1 /* 2 * This file is subject to the terms and conditions of the GNU General Public 3 * License. See the file "COPYING" in the main directory of this archive 4 * for more details. 5 * 6 * Copyright (C) 2009-2011 Florian Fainelli <florian@openwrt.org> 7 * Copyright (C) 2010 Tanguy Bouzeloc <tanguy.bouzeloc@efixo.com> 8 */ 9 10 #include <linux/init.h> 11 #include <linux/kernel.h> 12 #include <linux/export.h> 13 #include <linux/platform_device.h> 14 #include <linux/err.h> 15 #include <linux/clk.h> 16 17 #include <bcm63xx_cpu.h> 18 #include <bcm63xx_dev_spi.h> 19 #include <bcm63xx_regs.h> 20 21 /* 22 * register offsets 23 */ 24 static const unsigned long bcm6348_regs_spi[] = { 25 __GEN_SPI_REGS_TABLE(6348) 26 }; 27 28 static const unsigned long bcm6358_regs_spi[] = { 29 __GEN_SPI_REGS_TABLE(6358) 30 }; 31 32 const unsigned long *bcm63xx_regs_spi; 33 EXPORT_SYMBOL(bcm63xx_regs_spi); 34 35 static __init void bcm63xx_spi_regs_init(void) 36 { 37 if (BCMCPU_IS_6338() || BCMCPU_IS_6348()) 38 bcm63xx_regs_spi = bcm6348_regs_spi; 39 if (BCMCPU_IS_3368() || BCMCPU_IS_6358() || 40 BCMCPU_IS_6362() || BCMCPU_IS_6368()) 41 bcm63xx_regs_spi = bcm6358_regs_spi; 42 } 43 44 static struct resource spi_resources[] = { 45 { 46 .start = -1, /* filled at runtime */ 47 .end = -1, /* filled at runtime */ 48 .flags = IORESOURCE_MEM, 49 }, 50 { 51 .start = -1, /* filled at runtime */ 52 .flags = IORESOURCE_IRQ, 53 }, 54 }; 55 56 static struct platform_device bcm63xx_spi_device = { 57 .name = "bcm63xx-spi", 58 .id = -1, 59 .num_resources = ARRAY_SIZE(spi_resources), 60 .resource = spi_resources, 61 }; 62 63 int __init bcm63xx_spi_register(void) 64 { 65 if (BCMCPU_IS_6328() || BCMCPU_IS_6345()) 66 return -ENODEV; 67 68 spi_resources[0].start = bcm63xx_regset_address(RSET_SPI); 69 spi_resources[0].end = spi_resources[0].start; 70 spi_resources[1].start = bcm63xx_get_irq_number(IRQ_SPI); 71 72 if (BCMCPU_IS_6338() || BCMCPU_IS_6348()) 73 spi_resources[0].end += BCM_6348_RSET_SPI_SIZE - 1; 74 75 if (BCMCPU_IS_3368() || BCMCPU_IS_6358() || BCMCPU_IS_6362() || 76 BCMCPU_IS_6368()) 77 spi_resources[0].end += BCM_6358_RSET_SPI_SIZE - 1; 78 79 bcm63xx_spi_regs_init(); 80 81 return platform_device_register(&bcm63xx_spi_device); 82 } 83