bcma: move parallel flash support to separated file
This follows the way of handling other flashes and cleans code a bit. As next task we will want to move flash code to ChipCommon driver as: 1) Flash controllers are accesible using ChipCommon registers 2) This code isn't MIPS specific This change prepares bcma for that. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>hifive-unleashed-5.1
Rafał Miłecki
Kalle Valo
parent
2e62f9b2a4
commit
d6a3b51ada
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@ -70,6 +70,11 @@ config BCMA_DRIVER_MIPS
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If unsure, say N
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config BCMA_PFLASH
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bool
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depends on BCMA_DRIVER_MIPS
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default y
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config BCMA_SFLASH
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bool
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depends on BCMA_DRIVER_MIPS
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@ -1,6 +1,7 @@
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bcma-y += main.o scan.o core.o sprom.o
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bcma-y += driver_chipcommon.o driver_chipcommon_pmu.o
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bcma-y += driver_chipcommon_b.o
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bcma-$(CONFIG_BCMA_PFLASH) += driver_chipcommon_pflash.o
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bcma-$(CONFIG_BCMA_SFLASH) += driver_chipcommon_sflash.o
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bcma-$(CONFIG_BCMA_NFLASH) += driver_chipcommon_nflash.o
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bcma-$(CONFIG_BCMA_DRIVER_PCI) += driver_pci.o
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@ -47,9 +47,6 @@ int bcma_sprom_get(struct bcma_bus *bus);
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void bcma_core_chipcommon_early_init(struct bcma_drv_cc *cc);
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void bcma_core_chipcommon_init(struct bcma_drv_cc *cc);
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void bcma_chipco_bcm4331_ext_pa_lines_ctl(struct bcma_drv_cc *cc, bool enable);
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#ifdef CONFIG_BCMA_DRIVER_MIPS
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extern struct platform_device bcma_pflash_dev;
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#endif /* CONFIG_BCMA_DRIVER_MIPS */
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/* driver_chipcommon_b.c */
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int bcma_core_chipcommon_b_init(struct bcma_drv_cc_b *ccb);
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@ -61,6 +58,21 @@ void bcma_pmu_init(struct bcma_drv_cc *cc);
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u32 bcma_pmu_get_alp_clock(struct bcma_drv_cc *cc);
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u32 bcma_pmu_get_cpu_clock(struct bcma_drv_cc *cc);
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/**************************************************
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* driver_chipcommon_sflash.c
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**************************************************/
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#ifdef CONFIG_BCMA_PFLASH
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extern struct platform_device bcma_pflash_dev;
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int bcma_pflash_init(struct bcma_drv_cc *cc);
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#else
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static inline int bcma_pflash_init(struct bcma_drv_cc *cc)
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{
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bcma_err(cc->core->bus, "Parallel flash not supported\n");
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return 0;
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}
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#endif /* CONFIG_BCMA_PFLASH */
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#ifdef CONFIG_BCMA_SFLASH
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/* driver_chipcommon_sflash.c */
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int bcma_sflash_init(struct bcma_drv_cc *cc);
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@ -0,0 +1,49 @@
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/*
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* Broadcom specific AMBA
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* ChipCommon parallel flash
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*
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* Licensed under the GNU/GPL. See COPYING for details.
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*/
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#include "bcma_private.h"
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#include <linux/bcma/bcma.h>
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#include <linux/mtd/physmap.h>
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#include <linux/platform_device.h>
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static const char * const part_probes[] = { "bcm47xxpart", NULL };
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static struct physmap_flash_data bcma_pflash_data = {
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.part_probe_types = part_probes,
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};
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static struct resource bcma_pflash_resource = {
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.name = "bcma_pflash",
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.flags = IORESOURCE_MEM,
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};
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struct platform_device bcma_pflash_dev = {
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.name = "physmap-flash",
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.dev = {
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.platform_data = &bcma_pflash_data,
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},
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.resource = &bcma_pflash_resource,
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.num_resources = 1,
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};
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int bcma_pflash_init(struct bcma_drv_cc *cc)
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{
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struct bcma_pflash *pflash = &cc->pflash;
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pflash->present = true;
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if (!(bcma_read32(cc->core, BCMA_CC_FLASH_CFG) & BCMA_CC_FLASH_CFG_DS))
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bcma_pflash_data.width = 1;
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else
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bcma_pflash_data.width = 2;
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bcma_pflash_resource.start = BCMA_SOC_FLASH2;
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bcma_pflash_resource.end = BCMA_SOC_FLASH2 + BCMA_SOC_FLASH2_SZ;
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return 0;
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}
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@ -14,8 +14,6 @@
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#include <linux/bcma/bcma.h>
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#include <linux/mtd/physmap.h>
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#include <linux/platform_device.h>
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#include <linux/serial.h>
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#include <linux/serial_core.h>
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#include <linux/serial_reg.h>
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@ -32,26 +30,6 @@ enum bcma_boot_dev {
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BCMA_BOOT_DEV_NAND,
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};
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static const char * const part_probes[] = { "bcm47xxpart", NULL };
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static struct physmap_flash_data bcma_pflash_data = {
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.part_probe_types = part_probes,
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};
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static struct resource bcma_pflash_resource = {
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.name = "bcma_pflash",
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.flags = IORESOURCE_MEM,
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};
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struct platform_device bcma_pflash_dev = {
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.name = "physmap-flash",
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.dev = {
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.platform_data = &bcma_pflash_data,
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},
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.resource = &bcma_pflash_resource,
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.num_resources = 1,
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};
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/* The 47162a0 hangs when reading MIPS DMP registers registers */
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static inline bool bcma_core_mips_bcm47162a0_quirk(struct bcma_device *dev)
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{
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@ -276,7 +254,6 @@ static void bcma_core_mips_flash_detect(struct bcma_drv_mips *mcore)
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{
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struct bcma_bus *bus = mcore->core->bus;
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struct bcma_drv_cc *cc = &bus->drv_cc;
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struct bcma_pflash *pflash = &cc->pflash;
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enum bcma_boot_dev boot_dev;
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switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
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@ -287,17 +264,7 @@ static void bcma_core_mips_flash_detect(struct bcma_drv_mips *mcore)
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break;
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case BCMA_CC_FLASHT_PARA:
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bcma_debug(bus, "Found parallel flash\n");
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pflash->present = true;
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if ((bcma_read32(cc->core, BCMA_CC_FLASH_CFG) &
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BCMA_CC_FLASH_CFG_DS) == 0)
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bcma_pflash_data.width = 1;
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else
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bcma_pflash_data.width = 2;
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bcma_pflash_resource.start = BCMA_SOC_FLASH2;
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bcma_pflash_resource.end = BCMA_SOC_FLASH2 + BCMA_SOC_FLASH2_SZ;
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bcma_pflash_init(cc);
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break;
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default:
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bcma_err(bus, "Flash type not supported\n");
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@ -350,7 +350,7 @@ static int bcma_register_devices(struct bcma_bus *bus)
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bcma_register_core(bus, core);
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}
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#ifdef CONFIG_BCMA_DRIVER_MIPS
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#ifdef CONFIG_BCMA_PFLASH
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if (bus->drv_cc.pflash.present) {
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err = platform_device_register(&bcma_pflash_dev);
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if (err)
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@ -576,10 +576,11 @@ struct bcma_chipcommon_pmu {
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u32 crystalfreq; /* The active crystal frequency (in kHz) */
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};
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#ifdef CONFIG_BCMA_DRIVER_MIPS
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#ifdef CONFIG_BCMA_PFLASH
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struct bcma_pflash {
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bool present;
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};
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#endif
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#ifdef CONFIG_BCMA_SFLASH
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struct mtd_info;
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@ -603,6 +604,7 @@ struct bcma_nflash {
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};
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#endif
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#ifdef CONFIG_BCMA_DRIVER_MIPS
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struct bcma_serial_port {
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void *regs;
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unsigned long clockspeed;
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@ -622,8 +624,9 @@ struct bcma_drv_cc {
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/* Fast Powerup Delay constant */
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u16 fast_pwrup_delay;
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struct bcma_chipcommon_pmu pmu;
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#ifdef CONFIG_BCMA_DRIVER_MIPS
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#ifdef CONFIG_BCMA_PFLASH
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struct bcma_pflash pflash;
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#endif
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#ifdef CONFIG_BCMA_SFLASH
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struct bcma_sflash sflash;
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#endif
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@ -631,6 +634,7 @@ struct bcma_drv_cc {
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struct bcma_nflash nflash;
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#endif
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#ifdef CONFIG_BCMA_DRIVER_MIPS
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int nr_serial_ports;
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struct bcma_serial_port serial_ports[4];
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#endif /* CONFIG_BCMA_DRIVER_MIPS */
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