From: Stephen Warren <swarren@nvidia.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 05/14] tegra: Add tegra_get_chip_type() to detect SKU
Date: Mon, 09 Jan 2012 16:24:40 -0700 [thread overview]
Message-ID: <4F0B7738.70008@nvidia.com> (raw)
In-Reply-To: <1324927987-13100-6-git-send-email-sjg@chromium.org>
On 12/26/2011 12:32 PM, Simon Glass wrote:
> We want to know which type of chip we are running on - the Tegra
> family has several SKUs. This can be determined by reading a
> fuse register, so add this function to ap20.
...
> diff --git a/arch/arm/cpu/armv7/tegra2/ap20.c b/arch/arm/cpu/armv7/tegra2/ap20.c
...
> +int tegra_get_chip_type(void)
> +{
> + struct fuse_regs *fuse = (struct fuse_regs *)TEGRA2_FUSE_BASE;
> + uint tegra_sku_id;
> +
> + tegra_sku_id = readl(&fuse->sku_info) & 0xff;
> +
> + switch (tegra_sku_id) {
I think this should read/validate/switch-on the SoC ID field too; I
assume the SKU IDs can only be interpreted relative to some specific SoC ID.
Chip ID is bits 15:8 of the register APB_MISC + 0x804, and has value
0x20 for Tegra20, 0x30 for Tegra30.
--
nvpublic
next prev parent reply other threads:[~2012-01-09 23:24 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-26 19:32 [U-Boot] [PATCH 0/14] tegra: warmboot (suspend / resume) support Simon Glass
2011-12-26 19:32 ` [U-Boot] [PATCH 01/14] Add AES crypto library Simon Glass
2012-01-08 5:49 ` Mike Frysinger
2012-01-08 8:57 ` Marek Vasut
2012-01-08 9:09 ` Mike Frysinger
2012-01-08 10:40 ` Marek Vasut
2012-01-08 16:35 ` Simon Glass
2011-12-26 19:32 ` [U-Boot] [PATCH 02/14] tegra: Move ap20.h header into arch location Simon Glass
2011-12-26 19:32 ` [U-Boot] [PATCH 03/14] tegra: Add crypto library for warmboot code Simon Glass
2012-01-08 5:51 ` Mike Frysinger
2012-01-08 16:42 ` Simon Glass
2011-12-26 19:32 ` [U-Boot] [PATCH 04/14] tegra: Add flow, gp_padctl, fuse, sdram headers Simon Glass
2011-12-26 19:32 ` [U-Boot] [PATCH 05/14] tegra: Add tegra_get_chip_type() to detect SKU Simon Glass
2012-01-09 23:24 ` Stephen Warren [this message]
2012-01-12 19:35 ` Simon Glass
2012-01-12 19:48 ` Stephen Warren
2012-01-13 21:06 ` Simon Glass
2011-12-26 19:32 ` [U-Boot] [PATCH 06/14] tegra: Add EMC support for optimal memory timings Simon Glass
2012-01-09 23:38 ` Stephen Warren
2012-01-12 20:43 ` Simon Glass
2012-01-13 17:47 ` Simon Glass
2011-12-26 19:33 ` [U-Boot] [PATCH 07/14] tegra: Add PMU to manage power supplies Simon Glass
2012-01-10 17:56 ` Stephen Warren
2012-01-12 23:17 ` Simon Glass
2012-01-12 23:43 ` Stephen Warren
2012-01-12 23:55 ` Simon Glass
2011-12-26 19:33 ` [U-Boot] [PATCH 08/14] tegra: Set up PMU for Nvidia boards Simon Glass
2012-01-10 18:02 ` Stephen Warren
2012-01-12 23:42 ` Simon Glass
2011-12-26 19:33 ` [U-Boot] [PATCH 09/14] tegra: Add warmboot implementation Simon Glass
2012-01-10 18:30 ` Stephen Warren
2012-01-13 19:34 ` Simon Glass
2012-01-13 22:04 ` Yen Lin
2012-01-13 23:05 ` Simon Glass
2012-01-13 23:08 ` Stephen Warren
2012-01-14 0:04 ` Yen Lin
2011-12-26 19:33 ` [U-Boot] [PATCH 10/14] tegra: Setup PMC scratch info from ap20 setup Simon Glass
2011-12-26 19:33 ` [U-Boot] [PATCH 11/14] tegra: Set up warmboot code on Nvidia boards Simon Glass
2011-12-26 19:33 ` [U-Boot] [PATCH 12/14] tegra: Set vdd_core and vdd_cpu to high Simon Glass
2012-01-10 18:40 ` Stephen Warren
2012-01-13 17:55 ` Simon Glass
2011-12-26 19:33 ` [U-Boot] [PATCH 13/14] tegra: Add EMC settings for Seaboard, Harmony Simon Glass
2012-01-10 18:46 ` Stephen Warren
2012-01-12 23:05 ` Simon Glass
2012-01-12 23:42 ` Stephen Warren
2012-01-12 23:54 ` Simon Glass
2012-01-13 0:01 ` Stephen Warren
2012-01-13 0:05 ` Simon Glass
2012-01-13 0:10 ` Stephen Warren
2012-01-13 0:18 ` Simon Glass
2011-12-26 19:33 ` [U-Boot] [PATCH 14/14] tegra: Enable LP0 on Seaboard Simon Glass
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