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144 lines
3.0 KiB
144 lines
3.0 KiB
/* |
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* This file is subject to the terms and conditions of the GNU General Public |
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* License. See the file "COPYING" in the main directory of this archive |
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* for more details. |
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* |
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* Copyright (C) 2008 Maxime Bizon <[email protected]> |
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*/ |
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#include <linux/init.h> |
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#include <linux/kernel.h> |
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#include <asm/bootinfo.h> |
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#include <linux/platform_device.h> |
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#include <bcm63xx_cs.h> |
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#include <bcm63xx_cpu.h> |
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#include <bcm63xx_dev_pcmcia.h> |
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#include <bcm63xx_io.h> |
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#include <bcm63xx_regs.h> |
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static struct resource pcmcia_resources[] = { |
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/* pcmcia registers */ |
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{ |
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/* start & end filled at runtime */ |
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.flags = IORESOURCE_MEM, |
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}, |
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/* pcmcia memory zone resources */ |
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{ |
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.start = BCM_PCMCIA_COMMON_BASE_PA, |
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.end = BCM_PCMCIA_COMMON_END_PA, |
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.flags = IORESOURCE_MEM, |
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}, |
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{ |
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.start = BCM_PCMCIA_ATTR_BASE_PA, |
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.end = BCM_PCMCIA_ATTR_END_PA, |
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.flags = IORESOURCE_MEM, |
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}, |
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{ |
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.start = BCM_PCMCIA_IO_BASE_PA, |
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.end = BCM_PCMCIA_IO_END_PA, |
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.flags = IORESOURCE_MEM, |
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}, |
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/* PCMCIA irq */ |
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{ |
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/* start filled at runtime */ |
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.flags = IORESOURCE_IRQ, |
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}, |
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/* declare PCMCIA IO resource also */ |
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{ |
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.start = BCM_PCMCIA_IO_BASE_PA, |
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.end = BCM_PCMCIA_IO_END_PA, |
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.flags = IORESOURCE_IO, |
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}, |
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}; |
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static struct bcm63xx_pcmcia_platform_data pd; |
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static struct platform_device bcm63xx_pcmcia_device = { |
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.name = "bcm63xx_pcmcia", |
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.id = 0, |
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.num_resources = ARRAY_SIZE(pcmcia_resources), |
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.resource = pcmcia_resources, |
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.dev = { |
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.platform_data = &pd, |
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}, |
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}; |
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static int __init config_pcmcia_cs(unsigned int cs, |
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u32 base, unsigned int size) |
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{ |
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int ret; |
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ret = bcm63xx_set_cs_status(cs, 0); |
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if (!ret) |
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ret = bcm63xx_set_cs_base(cs, base, size); |
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if (!ret) |
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ret = bcm63xx_set_cs_status(cs, 1); |
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return ret; |
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} |
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static const struct { |
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unsigned int cs; |
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unsigned int base; |
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unsigned int size; |
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} pcmcia_cs[3] __initconst = { |
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{ |
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.cs = MPI_CS_PCMCIA_COMMON, |
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.base = BCM_PCMCIA_COMMON_BASE_PA, |
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.size = BCM_PCMCIA_COMMON_SIZE |
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}, |
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{ |
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.cs = MPI_CS_PCMCIA_ATTR, |
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.base = BCM_PCMCIA_ATTR_BASE_PA, |
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.size = BCM_PCMCIA_ATTR_SIZE |
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}, |
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{ |
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.cs = MPI_CS_PCMCIA_IO, |
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.base = BCM_PCMCIA_IO_BASE_PA, |
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.size = BCM_PCMCIA_IO_SIZE |
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}, |
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}; |
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int __init bcm63xx_pcmcia_register(void) |
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{ |
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int ret, i; |
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if (!BCMCPU_IS_6348() && !BCMCPU_IS_6358()) |
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return 0; |
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/* use correct pcmcia ready gpio depending on processor */ |
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switch (bcm63xx_get_cpu_id()) { |
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case BCM6348_CPU_ID: |
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pd.ready_gpio = 22; |
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break; |
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case BCM6358_CPU_ID: |
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pd.ready_gpio = 18; |
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break; |
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default: |
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return -ENODEV; |
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} |
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pcmcia_resources[0].start = bcm63xx_regset_address(RSET_PCMCIA); |
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pcmcia_resources[0].end = pcmcia_resources[0].start + |
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RSET_PCMCIA_SIZE - 1; |
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pcmcia_resources[4].start = bcm63xx_get_irq_number(IRQ_PCMCIA); |
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/* configure pcmcia chip selects */ |
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for (i = 0; i < 3; i++) { |
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ret = config_pcmcia_cs(pcmcia_cs[i].cs, |
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pcmcia_cs[i].base, |
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pcmcia_cs[i].size); |
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if (ret) |
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goto out_err; |
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} |
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return platform_device_register(&bcm63xx_pcmcia_device); |
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out_err: |
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pr_err("unable to set pcmcia chip select\n"); |
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return ret; |
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}
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