From 0a78d7ebf8524fdcf701e6e228d8a5720a0ffd1e Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Fri, 1 Feb 2019 14:55:42 +0000 Subject: hw/misc/iotkit-secctl: Support 4 internal MPCs The SSE-200 has 4 banks of SRAM, each with its own internal Memory Protection Controller. The interrupt status for these extra MPCs appears in the same security controller SECMPCINTSTATUS register as the MPC for the IoTKit's single SRAM bank. Enhance the iotkit-secctl device to allow 4 MPCs. (If the particular IoTKit/SSE variant in use does not have all 4 MPCs then the unused inputs will simply result in the SECMPCINTSTATUS bits being zero as required.) The hardcoded constant "1"s in armsse.c indicate the actual number of SRAM MPCs the IoTKit has, and will be replaced in the following commit. Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson Message-id: 20190121185118.18550-9-peter.maydell@linaro.org --- hw/misc/iotkit-secctl.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'hw/misc') diff --git a/hw/misc/iotkit-secctl.c b/hw/misc/iotkit-secctl.c index 2222b3e..537601c 100644 --- a/hw/misc/iotkit-secctl.c +++ b/hw/misc/iotkit-secctl.c @@ -600,7 +600,7 @@ static void iotkit_secctl_mpc_status(void *opaque, int n, int level) { IoTKitSecCtl *s = IOTKIT_SECCTL(opaque); - s->mpcintstatus = deposit32(s->mpcintstatus, 0, 1, !!level); + s->mpcintstatus = deposit32(s->mpcintstatus, n, 1, !!level); } static void iotkit_secctl_mpcexp_status(void *opaque, int n, int level) @@ -686,7 +686,8 @@ static void iotkit_secctl_init(Object *obj) qdev_init_gpio_out_named(dev, &s->sec_resp_cfg, "sec_resp_cfg", 1); qdev_init_gpio_out_named(dev, &s->nsc_cfg_irq, "nsc_cfg", 1); - qdev_init_gpio_in_named(dev, iotkit_secctl_mpc_status, "mpc_status", 1); + qdev_init_gpio_in_named(dev, iotkit_secctl_mpc_status, "mpc_status", + IOTS_NUM_MPC); qdev_init_gpio_in_named(dev, iotkit_secctl_mpcexp_status, "mpcexp_status", IOTS_NUM_EXP_MPC); -- cgit v1.1