From 553d6d5f5b84f11fad8043688137dac96df1a06d Mon Sep 17 00:00:00 2001 From: Maxime Bizon Date: Mon, 28 Sep 2009 14:49:43 +0200 Subject: MIPS: BCM63xx: Add PCMCIA & Cardbus support. Signed-off-by: Maxime Bizon Reviewed-by: Wolfram Sang Signed-off-by: Ralf Baechle --- arch/mips/bcm63xx/Makefile | 2 +- arch/mips/bcm63xx/boards/board_bcm963xx.c | 4 + arch/mips/bcm63xx/dev-pcmcia.c | 144 +++++++++++++++++++++ .../include/asm/mach-bcm63xx/bcm63xx_dev_pcmcia.h | 13 ++ 4 files changed, 162 insertions(+), 1 deletion(-) create mode 100644 arch/mips/bcm63xx/dev-pcmcia.c create mode 100644 arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_pcmcia.h (limited to 'arch') diff --git a/arch/mips/bcm63xx/Makefile b/arch/mips/bcm63xx/Makefile index cff75de..c146d1e 100644 --- a/arch/mips/bcm63xx/Makefile +++ b/arch/mips/bcm63xx/Makefile @@ -1,5 +1,5 @@ obj-y += clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \ - dev-dsp.o dev-enet.o dev-uart.o + dev-dsp.o dev-enet.o dev-pcmcia.o dev-uart.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o obj-y += boards/ diff --git a/arch/mips/bcm63xx/boards/board_bcm963xx.c b/arch/mips/bcm63xx/boards/board_bcm963xx.c index 5a327f3..78e155d 100644 --- a/arch/mips/bcm63xx/boards/board_bcm963xx.c +++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include @@ -795,6 +796,9 @@ int __init board_register_devices(void) bcm63xx_uart_register(); + if (board.has_pccard) + bcm63xx_pcmcia_register(); + if (board.has_enet0 && !board_get_mac_address(board.enet0.mac_addr)) bcm63xx_enet_register(0, &board.enet0); diff --git a/arch/mips/bcm63xx/dev-pcmcia.c b/arch/mips/bcm63xx/dev-pcmcia.c new file mode 100644 index 0000000..de4d917 --- /dev/null +++ b/arch/mips/bcm63xx/dev-pcmcia.c @@ -0,0 +1,144 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2008 Maxime Bizon + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static struct resource pcmcia_resources[] = { + /* pcmcia registers */ + { + /* start & end filled at runtime */ + .flags = IORESOURCE_MEM, + }, + + /* pcmcia memory zone resources */ + { + .start = BCM_PCMCIA_COMMON_BASE_PA, + .end = BCM_PCMCIA_COMMON_END_PA, + .flags = IORESOURCE_MEM, + }, + { + .start = BCM_PCMCIA_ATTR_BASE_PA, + .end = BCM_PCMCIA_ATTR_END_PA, + .flags = IORESOURCE_MEM, + }, + { + .start = BCM_PCMCIA_IO_BASE_PA, + .end = BCM_PCMCIA_IO_END_PA, + .flags = IORESOURCE_MEM, + }, + + /* PCMCIA irq */ + { + /* start filled at runtime */ + .flags = IORESOURCE_IRQ, + }, + + /* declare PCMCIA IO resource also */ + { + .start = BCM_PCMCIA_IO_BASE_PA, + .end = BCM_PCMCIA_IO_END_PA, + .flags = IORESOURCE_IO, + }, +}; + +static struct bcm63xx_pcmcia_platform_data pd; + +static struct platform_device bcm63xx_pcmcia_device = { + .name = "bcm63xx_pcmcia", + .id = 0, + .num_resources = ARRAY_SIZE(pcmcia_resources), + .resource = pcmcia_resources, + .dev = { + .platform_data = &pd, + }, +}; + +static int __init config_pcmcia_cs(unsigned int cs, + u32 base, unsigned int size) +{ + int ret; + + ret = bcm63xx_set_cs_status(cs, 0); + if (!ret) + ret = bcm63xx_set_cs_base(cs, base, size); + if (!ret) + ret = bcm63xx_set_cs_status(cs, 1); + return ret; +} + +static const __initdata struct { + unsigned int cs; + unsigned int base; + unsigned int size; +} pcmcia_cs[3] = { + { + .cs = MPI_CS_PCMCIA_COMMON, + .base = BCM_PCMCIA_COMMON_BASE_PA, + .size = BCM_PCMCIA_COMMON_SIZE + }, + { + .cs = MPI_CS_PCMCIA_ATTR, + .base = BCM_PCMCIA_ATTR_BASE_PA, + .size = BCM_PCMCIA_ATTR_SIZE + }, + { + .cs = MPI_CS_PCMCIA_IO, + .base = BCM_PCMCIA_IO_BASE_PA, + .size = BCM_PCMCIA_IO_SIZE + }, +}; + +int __init bcm63xx_pcmcia_register(void) +{ + int ret, i; + + if (!BCMCPU_IS_6348() && !BCMCPU_IS_6358()) + return 0; + + /* use correct pcmcia ready gpio depending on processor */ + switch (bcm63xx_get_cpu_id()) { + case BCM6348_CPU_ID: + pd.ready_gpio = 22; + break; + + case BCM6358_CPU_ID: + pd.ready_gpio = 18; + break; + + default: + return -ENODEV; + } + + pcmcia_resources[0].start = bcm63xx_regset_address(RSET_PCMCIA); + pcmcia_resources[0].end = pcmcia_resources[0].start + + RSET_PCMCIA_SIZE - 1; + pcmcia_resources[4].start = bcm63xx_get_irq_number(IRQ_PCMCIA); + + /* configure pcmcia chip selects */ + for (i = 0; i < 3; i++) { + ret = config_pcmcia_cs(pcmcia_cs[i].cs, + pcmcia_cs[i].base, + pcmcia_cs[i].size); + if (ret) + goto out_err; + } + + return platform_device_register(&bcm63xx_pcmcia_device); + +out_err: + printk(KERN_ERR "unable to set pcmcia chip select\n"); + return ret; +} diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_pcmcia.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_pcmcia.h new file mode 100644 index 0000000..2beb396 --- /dev/null +++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_pcmcia.h @@ -0,0 +1,13 @@ +#ifndef BCM63XX_DEV_PCMCIA_H_ +#define BCM63XX_DEV_PCMCIA_H_ + +/* + * PCMCIA driver platform data + */ +struct bcm63xx_pcmcia_platform_data { + unsigned int ready_gpio; +}; + +int bcm63xx_pcmcia_register(void); + +#endif /* BCM63XX_DEV_PCMCIA_H_ */ -- cgit v1.1