ARM: orion5x: use DT to describe NOR on edmini_v2
This commit converts the already partially DT-converted edmini_v2 platform to use the Device Tree for NOR flash, using the Device Bus. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Link: https://lkml.kernel.org/r/1398202002-28530-32-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit is contained in:
Thomas Petazzoni
Jason Cooper
parent
a665fce3e7
commit
a54cd73b84
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@ -28,7 +28,8 @@
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soc {
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soc {
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ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000>,
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ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000>,
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<MBUS_ID(0x09, 0x00) 0 0xf2200000 0x800>;
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<MBUS_ID(0x09, 0x00) 0 0xf2200000 0x800>,
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<MBUS_ID(0x01, 0x0f) 0 0xfff80000 0x80000>;
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};
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};
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gpio-keys {
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gpio-keys {
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@ -56,6 +57,46 @@
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};
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};
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};
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};
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&devbus_bootcs {
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status = "okay";
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/* Read parameters */
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devbus,bus-width = <8>;
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devbus,turn-off-ps = <90000>;
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devbus,badr-skew-ps = <0>;
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devbus,acc-first-ps = <186000>;
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devbus,acc-next-ps = <186000>;
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/* Write parameters */
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devbus,wr-high-ps = <90000>;
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devbus,wr-low-ps = <90000>;
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devbus,ale-wr-ps = <90000>;
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/*
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* Currently the MTD code does not recognize the MX29LV400CBCT
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* as a bottom-type device. This could cause risks of
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* accidentally erasing critical flash sectors. We thus define
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* a single, write-protected partition covering the whole
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* flash. TODO: once the flash part TOP/BOTTOM detection
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* issue is sorted out in the MTD code, break this into at
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* least three partitions: 'u-boot code', 'u-boot environment'
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* and 'whatever is left'.
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*/
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flash@0 {
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compatible = "cfi-flash";
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reg = <0 0x80000>;
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bank-width = <1>;
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#address-cells = <1>;
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#size-cells = <1>;
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partition@0 {
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label = "Full512Kb";
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reg = <0 0x80000>;
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read-only;
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};
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};
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};
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&ehci0 {
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&ehci0 {
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status = "okay";
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status = "okay";
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};
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};
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@ -42,74 +42,12 @@
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* EDMINI_V2 Info
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* EDMINI_V2 Info
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****************************************************************************/
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****************************************************************************/
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/*
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* 512KB NOR flash Device bus boot chip select
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*/
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#define EDMINI_V2_NOR_BOOT_BASE 0xfff80000
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#define EDMINI_V2_NOR_BOOT_SIZE SZ_512K
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/*****************************************************************************
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* 512KB NOR Flash on BOOT Device
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****************************************************************************/
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/*
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* Currently the MTD code does not recognize the MX29LV400CBCT as a bottom
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* -type device. This could cause risks of accidentally erasing critical
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* flash sectors. We thus define a single, write-protected partition covering
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* the whole flash.
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* TODO: once the flash part TOP/BOTTOM detection issue is sorted out in the MTD
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* code, break this into at least three partitions: 'u-boot code', 'u-boot
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* environment' and 'whatever is left'.
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*/
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static struct mtd_partition edmini_v2_partitions[] = {
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{
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.name = "Full512kb",
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.size = 0x00080000,
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.offset = 0x00000000,
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.mask_flags = MTD_WRITEABLE,
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},
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};
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static struct physmap_flash_data edmini_v2_nor_flash_data = {
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.width = 1,
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.parts = edmini_v2_partitions,
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.nr_parts = ARRAY_SIZE(edmini_v2_partitions),
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};
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static struct resource edmini_v2_nor_flash_resource = {
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.flags = IORESOURCE_MEM,
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.start = EDMINI_V2_NOR_BOOT_BASE,
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.end = EDMINI_V2_NOR_BOOT_BASE
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+ EDMINI_V2_NOR_BOOT_SIZE - 1,
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};
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static struct platform_device edmini_v2_nor_flash = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &edmini_v2_nor_flash_data,
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},
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.num_resources = 1,
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.resource = &edmini_v2_nor_flash_resource,
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};
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/*****************************************************************************
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/*****************************************************************************
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* General Setup
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* General Setup
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****************************************************************************/
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****************************************************************************/
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void __init edmini_v2_init(void)
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void __init edmini_v2_init(void)
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{
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{
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/*
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* Configure peripherals.
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*/
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mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
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ORION_MBUS_DEVBUS_BOOT_ATTR,
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EDMINI_V2_NOR_BOOT_BASE,
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EDMINI_V2_NOR_BOOT_SIZE);
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platform_device_register(&edmini_v2_nor_flash);
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pr_notice("edmini_v2: USB device port, flash write and power-off "
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pr_notice("edmini_v2: USB device port, flash write and power-off "
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"are not yet supported.\n");
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"are not yet supported.\n");
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}
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}
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