coreboot.git - my copy of coreboot

Age	Commit message (Collapse)	Author
2023-06-15	drv/i2c/pi608gp: Fix types	Jan Samek
	In commit e59f18bf29a8 ("drivers/i2c: Add PI7C9X2G608GP PCIe switch driver (pi608gp)"), there were some suggestions after it's been already merged. This patch addresses the points regarding the number types - fix of the printk format strings, inclusion of 'stdint.h' and marking the set of allowed values as constant. BUG=none TEST=Build OK, no behavioral changes in the pi608gp driver, console logs without changes. Change-Id: I34c664f6a8a257b260facdbf9043825ff4a4c932 Signed-off-by: Jan Samek <jan.samek@siemens.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/75500 Reviewed-by: Himanshu Sahdev <himanshu.sahdev@intel.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
2023-05-08	drivers/i2c: Add PI7C9X2G608GP PCIe switch driver (pi608gp)	Jan Samek
	This patch adds some of the variety of configuration options exported by the Pericom Inc. PI7C9X2G608GP PCIe switch over its SMBus interface. Currently implemented options are only used to adjust the switch upstream port amplitude and de-emphasis levels in millivolts. Only values specified in the switch datasheet (in tables 6-6 and 6-8) are allowed. Example of a devicetree.cb entry: chip drivers/i2c/pi608gp register "gen2_3p5_enable" = "true" register "gen2_3p5_amp" = "AMP_LVL_MV(425)" register "gen2_3p5_deemph" = \ "DEEMPH_LVL_MV(37, 5)" device i2c 0x6f on ops pi608gp_ops end end Link to the datasheet: https://web.archive.org/web/20210225074853/https://www.diodes.com/assets/Datasheets/PI7C9X2G608GP.pdf BUG=none TEST=Create devicetree.cb and Kconfig entries for this driver in a mainboard containing the switch and verify, that the values read out from the switch config space match the values programmed over the SMBus. Change-Id: Id191c4e97b99da58efd3ba38bf8cca3603ece4d5 Signed-off-by: Jan Samek <jan.samek@siemens.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/74433 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>