diff options
author | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2009-08-30 19:15:51 +0000 |
---|---|---|
committer | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2009-08-30 19:15:51 +0000 |
commit | b887a6d197170b719028f31085876d8deaed35b6 (patch) | |
tree | 36b5045e64065dcb96b8da4d93ffe20fc286a711 /target/linux/ramips/files/arch/mips/ralink/rt288x/platform.c | |
parent | 237a5a2c34824a249326c1cb58c495ab4629baae (diff) |
[ramips] initial support for RT288x/RT305x
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17439 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ramips/files/arch/mips/ralink/rt288x/platform.c')
-rw-r--r-- | target/linux/ramips/files/arch/mips/ralink/rt288x/platform.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/platform.c b/target/linux/ramips/files/arch/mips/ralink/rt288x/platform.c new file mode 100644 index 000000000..a68628696 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/platform.c @@ -0,0 +1,97 @@ +/* + * Ralink RT288x SoC platform device registration + * + * Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org> + * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/physmap.h> + +#include <asm/addrspace.h> + +#include <asm/mach-ralink/rt288x.h> +#include <asm/mach-ralink/rt288x_regs.h> +#include <asm/mach-ralink/platform.h> + +static struct resource rt288x_flash0_resources[] = { + { + .flags = IORESOURCE_MEM, + .start = KSEG1ADDR(RT2880_FLASH0_BASE), + .end = KSEG1ADDR(RT2880_FLASH0_BASE) + + RT2880_FLASH0_SIZE - 1, + }, +}; + +static struct platform_device rt288x_flash0_device = { + .name = "physmap-flash", + .resource = rt288x_flash0_resources, + .num_resources = ARRAY_SIZE(rt288x_flash0_resources), +}; + +static struct resource rt288x_flash1_resources[] = { + { + .flags = IORESOURCE_MEM, + .start = KSEG1ADDR(RT2880_FLASH1_BASE), + .end = KSEG1ADDR(RT2880_FLASH1_BASE) + + RT2880_FLASH1_SIZE - 1, + }, +}; + +static struct platform_device rt288x_flash1_device = { + .name = "physmap-flash", + .resource = rt288x_flash1_resources, + .num_resources = ARRAY_SIZE(rt288x_flash1_resources), +}; + +static int rt288x_flash_instance __initdata; +void __init rt288x_register_flash(unsigned int id, + struct physmap_flash_data *pdata) +{ + struct platform_device *pdev; + u32 t; + int reg; + + switch (id) { + case 0: + pdev = &rt288x_flash0_device; + reg = MEMC_REG_FLASH_CFG0; + break; + case 1: + pdev = &rt288x_flash1_device; + reg = MEMC_REG_FLASH_CFG1; + break; + default: + return; + } + + t = rt288x_memc_rr(reg); + t = (t >> FLASH_CFG_WIDTH_SHIFT) & FLASH_CFG_WIDTH_MASK; + + switch (t) { + case FLASH_CFG_WIDTH_8BIT: + pdata->width = 1; + break; + case FLASH_CFG_WIDTH_16BIT: + pdata->width = 2; + break; + case FLASH_CFG_WIDTH_32BIT: + pdata->width = 4; + break; + default: + printk(KERN_ERR "RT288x: flash bank%u witdh is invalid\n", id); + return; + } + + pdev->dev.platform_data = pdata; + pdev->id = rt288x_flash_instance; + + platform_device_register(pdev); + rt288x_flash_instance++; +} |